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<h1 class="settitle" align="center">Building TeX Live (2020)</h1>









<span id="SEC_Overview"></span>
<h2 class="shortcontents-heading">Short Table of Contents</h2>

<div class="shortcontents">
<ul class="no-bullet">
<li><a id="stoc-Introduction-1" href="#toc-Introduction-1">1 Introduction</a></li>
<li><a id="stoc-Overview-of-build-system-1" href="#toc-Overview-of-build-system-1">2 Overview of build system</a></li>
<li><a id="stoc-Prerequisites-1" href="#toc-Prerequisites-1">3 Prerequisites</a></li>
<li><a id="stoc-Building-1" href="#toc-Building-1">4 Building</a></li>
<li><a id="stoc-Installing-1" href="#toc-Installing-1">5 Installing</a></li>
<li><a id="stoc-Layout-and-infrastructure-1" href="#toc-Layout-and-infrastructure-1">6 Layout and infrastructure</a></li>
<li><a id="stoc-Configure-options-1" href="#toc-Configure-options-1">7 Configure options</a></li>
<li><a id="stoc-Coding-conventions-1" href="#toc-Coding-conventions-1">8 Coding conventions</a></li>
<li><a id="stoc-Continuous-integration-1" href="#toc-Continuous-integration-1">9 Continuous integration</a></li>
<li><a id="stoc-install_002dtl-1" href="#toc-install_002dtl-1">Appendix A install-tl</a></li>
<li><a id="stoc-tlmgr-1" href="#toc-tlmgr-1">Appendix B tlmgr</a></li>
<li><a id="stoc-Index-1" href="#toc-Index-1" rel="index">Index</a></li>
</ul>
</div>

<span id="SEC_Contents"></span>
<h2 class="contents-heading">Table of Contents</h2>

<div class="contents">

<ul class="no-bullet">
  <li><a id="toc-Introduction-1" href="#Introduction">1 Introduction</a></li>
  <li><a id="toc-Overview-of-build-system-1" href="#Overview-of-build-system">2 Overview of build system</a></li>
  <li><a id="toc-Prerequisites-1" href="#Prerequisites">3 Prerequisites</a></li>
  <li><a id="toc-Building-1" href="#Building">4 Building</a>
  <ul class="no-bullet">
    <li><a id="toc-Build-iteration-1" href="#Build-iteration">4.1 Build iteration</a></li>
    <li><a id="toc-Build-problems-1" href="#Build-problems">4.2 Build problems</a></li>
    <li><a id="toc-Build-in-parallel-1" href="#Build-in-parallel">4.3 Build in parallel</a></li>
    <li><a id="toc-Build-distribution-1" href="#Build-distribution">4.4 Build distribution</a></li>
    <li><a id="toc-Build-one-package-1" href="#Build-one-package">4.5 Build one package</a></li>
    <li><a id="toc-Build-one-engine-1" href="#Build-one-engine">4.6 Build one engine</a></li>
    <li><a id="toc-Cross-compilation-1" href="#Cross-compilation">4.7 Cross compilation</a>
    <ul class="no-bullet">
      <li><a id="toc-Cross-configuring-1" href="#Cross-configuring">4.7.1 Cross configuring</a></li>
      <li><a id="toc-Cross-problems-1" href="#Cross-problems">4.7.2 Cross problems</a></li>
    </ul></li>
  </ul></li>
  <li><a id="toc-Installing-1" href="#Installing">5 Installing</a>
  <ul class="no-bullet">
    <li><a id="toc-Installation-directories-1" href="#Installation-directories">5.1 Installation directories</a></li>
    <li><a id="toc-Linked-scripts-1" href="#Linked-scripts">5.2 Linked scripts</a></li>
    <li><a id="toc-Distro-builds-1" href="#Distro-builds">5.3 Distro builds</a></li>
  </ul></li>
  <li><a id="toc-Layout-and-infrastructure-1" href="#Layout-and-infrastructure">6 Layout and infrastructure</a>
  <ul class="no-bullet">
    <li><a id="toc-Build-system-tools-1" href="#Build-system-tools">6.1 Build system tools</a></li>
    <li><a id="toc-Top_002dlevel-directories-1" href="#Top_002dlevel-directories">6.2 Top-level directories</a></li>
    <li><a id="toc-Autoconf-macros-1" href="#Autoconf-macros">6.3 Autoconf macros</a>
    <ul class="no-bullet">
      <li><a id="toc-General-setup-macros-1" href="#General-setup-macros">6.3.1 General setup macros</a></li>
      <li><a id="toc-Macros-for-programs-1" href="#Macros-for-programs">6.3.2 Macros for programs</a></li>
      <li><a id="toc-Macros-for-compilers-1" href="#Macros-for-compilers">6.3.3 Macros for compilers</a></li>
      <li><a id="toc-Macros-for-libraries-1" href="#Macros-for-libraries">6.3.4 Macros for libraries</a></li>
      <li><a id="toc-Macros-for-library-and-header-flags-1" href="#Macros-for-library-and-header-flags">6.3.5 Macros for library and header flags</a></li>
      <li><a id="toc-Macros-for-Windows-1" href="#Macros-for-Windows">6.3.6 Macros for Windows</a></li>
    </ul></li>
    <li><a id="toc-Library-modules-1" href="#Library-modules">6.4 Library modules</a>
    <ul class="no-bullet">
      <li><a id="toc-The-png-library-in-libs_002flibpng" href="#png-library">6.4.1 The <code>png</code> library in <samp>libs/libpng</samp></a></li>
      <li><a id="toc-The-zlib-library-in-libs_002fzlib" href="#zlib-library">6.4.2 The <code>zlib</code> library in <samp>libs/zlib</samp></a></li>
      <li><a id="toc-The-freetype-library-in-libs_002ffreetype2" href="#freetype-library">6.4.3 The <code>freetype</code> library in <samp>libs/freetype2</samp></a></li>
      <li><a id="toc-The-kpathsea-library-in-texk_002fkpathsea" href="#kpathsea-library">6.4.4 The <code>kpathsea</code> library in <samp>texk/kpathsea</samp></a></li>
    </ul></li>
    <li><a id="toc-Program-modules-1" href="#Program-modules">6.5 Program modules</a>
    <ul class="no-bullet">
      <li><a id="toc-The-t1utils-package-in-utils_002ft1utils" href="#t1utils-package">6.5.1 The <code>t1utils</code> package in <samp>utils/t1utils</samp></a></li>
      <li><a id="toc-The-xindy-package-in-utils_002fxindy" href="#xindy-package">6.5.2 The <code>xindy</code> package in <samp>utils/xindy</samp></a></li>
      <li><a id="toc-The-xdvik-package-in-texk_002fxdvik" href="#xdvik-package">6.5.3 The <code>xdvik</code> package in <samp>texk/xdvik</samp></a></li>
      <li><a id="toc-The-subdirectory-utils_002fasymptote" href="#asymptote">6.5.4 The subdirectory <samp>utils/asymptote</samp></a></li>
    </ul></li>
    <li><a id="toc-Extending-TeX-Live-1" href="#Extending-TeX-Live">6.6 Extending TeX&nbsp;Live</a>
    <ul class="no-bullet">
      <li><a id="toc-Adding-a-new-program-module-1" href="#Adding-a-new-program-module">6.6.1 Adding a new program module</a></li>
      <li><a id="toc-Adding-a-new-generic-library-module-1" href="#Adding-a-new-generic-library-module">6.6.2 Adding a new generic library module</a></li>
      <li><a id="toc-Adding-a-new-TeX_002dspecific-library-module-1" href="#Adding-a-new-TeX_002dspecific-library-module">6.6.3 Adding a new TeX-specific library module</a></li>
    </ul></li>
  </ul></li>
  <li><a id="toc-Configure-options-1" href="#Configure-options">7 Configure options</a>
  <ul class="no-bullet">
    <li><a id="toc-Global-configure-options-1" href="#Global-configure-options">7.1 Global configure options</a>
    <ul class="no-bullet">
      <li><a id="toc-_002d_002ddisable_002dnative_002dtexlive_002dbuild-1" href="#g_t_002d_002ddisable_002dnative_002dtexlive_002dbuild">7.1.1 <code>--disable-native-texlive-build</code></a></li>
      <li><a id="toc-_002d_002dprefix_002c-_002d_002dbindir_002c-_2026" href="#g_t_002d_002dprefix-_002d_002dbindir-_2026">7.1.2 <code>--prefix</code>, <code>--bindir</code>, &hellip;</a></li>
      <li><a id="toc-_002d_002ddisable_002dlargefile-1" href="#g_t_002d_002ddisable_002dlargefile">7.1.3 <code>--disable-largefile</code></a></li>
      <li><a id="toc-_002d_002ddisable_002dmissing-1" href="#g_t_002d_002ddisable_002dmissing">7.1.4 <code>--disable-missing</code></a></li>
      <li><a id="toc-_002d_002denable_002dcompiler_002dwarnings_003dlevel-1" href="#g_t_002d_002denable_002dcompiler_002dwarnings_003dlevel">7.1.5 <code>--enable-compiler-warnings=</code><var>level</var></a></li>
      <li><a id="toc-_002d_002denable_002dcxx_002druntime_002dhack-1" href="#g_t_002d_002denable_002dcxx_002druntime_002dhack">7.1.6 <code>--enable-cxx-runtime-hack</code></a></li>
      <li><a id="toc-_002d_002denable_002dmaintainer_002dmode-1" href="#g_t_002d_002denable_002dmaintainer_002dmode">7.1.7 <code>--enable-maintainer-mode</code></a></li>
      <li><a id="toc-_002d_002denable_002dmultiplatform-1" href="#g_t_002d_002denable_002dmultiplatform">7.1.8 <code>--enable-multiplatform</code></a></li>
      <li><a id="toc-_002d_002denable_002dshared-1" href="#g_t_002d_002denable_002dshared">7.1.9 <code>--enable-shared</code></a></li>
      <li><a id="toc-_002d_002denable_002dsilent_002drules-1" href="#g_t_002d_002denable_002dsilent_002drules">7.1.10 <code>--enable-silent-rules</code></a></li>
      <li><a id="toc-_002d_002dwithout_002dln_002ds-1" href="#g_t_002d_002dwithout_002dln_002ds">7.1.11 <code>--without-ln-s</code></a></li>
      <li><a id="toc-_002d_002dwithout_002dx-1" href="#g_t_002d_002dwithout_002dx">7.1.12 <code>--without-x</code></a></li>
    </ul></li>
    <li><a id="toc-Program_002dspecific-configure-options-1" href="#Program_002dspecific-configure-options">7.2 Program-specific configure options</a>
    <ul class="no-bullet">
      <li><a id="toc-_002d_002denable_002dprog_002c-_002d_002ddisable_002dprog" href="#g_t_002d_002denable_002dprog-_002d_002ddisable_002dprog">7.2.1 <code>--enable-<var>prog</var></code>, <code>--disable-<var>prog</var></code></a></li>
      <li><a id="toc-_002d_002ddisable_002dall_002dpkgs-1" href="#g_t_002d_002ddisable_002dall_002dpkgs">7.2.2 <code>--disable-all-pkgs</code></a></li>
      <li><a id="toc-Configure-options-for-texk_002fweb2c-1" href="#Configure-options-for-texk_002fweb2c">7.2.3 Configure options for <samp>texk/web2c</samp></a></li>
      <li><a id="toc-Configure-options-for-texk_002fbibtex_002dx-1" href="#Configure-options-for-texk_002fbibtex_002dx">7.2.4 Configure options for <samp>texk/bibtex-x</samp></a></li>
      <li><a id="toc-Configure-options-for-texk_002fdvipdfm_002dx-1" href="#Configure-options-for-texk_002fdvipdfm_002dx">7.2.5 Configure options for <samp>texk/dvipdfm-x</samp></a></li>
      <li><a id="toc-Configure-options-for-texk_002fdvisvgm-1" href="#Configure-options-for-texk_002fdvisvgm">7.2.6 Configure options for <samp>texk/dvisvgm</samp></a></li>
      <li><a id="toc-Configure-options-for-texk_002ftexlive-1" href="#Configure-options-for-texk_002ftexlive">7.2.7 Configure options for <samp>texk/texlive</samp></a></li>
      <li><a id="toc-Configure-options-for-texk_002fxdvik-1" href="#Configure-options-for-texk_002fxdvik">7.2.8 Configure options for <samp>texk/xdvik</samp></a></li>
      <li><a id="toc-Configure-options-for-utils_002fxindy-1" href="#Configure-options-for-utils_002fxindy">7.2.9 Configure options for <samp>utils/xindy</samp></a></li>
    </ul></li>
    <li><a id="toc-Library_002dspecific-configure-options-1" href="#Library_002dspecific-configure-options">7.3 Library-specific configure options</a>
    <ul class="no-bullet">
      <li><a id="toc-Configure-options-for-kpathsea-1" href="#Configure-options-for-kpathsea">7.3.1 Configure options for <code>kpathsea</code></a></li>
      <li><a id="toc-Configure-options-for-system-poppler-1" href="#Configure-options-for-system-poppler">7.3.2 Configure options for system <code>poppler</code></a></li>
    </ul></li>
    <li><a id="toc-Variables-for-configure-1" href="#Variables-for-configure">7.4 Variables for configure</a></li>
  </ul></li>
  <li><a id="toc-Coding-conventions-1" href="#Coding-conventions">8 Coding conventions</a>
  <ul class="no-bullet">
    <li><a id="toc-Declarations-and-definitions-1" href="#Declarations-and-definitions">8.1 Declarations and definitions</a></li>
    <li><a id="toc-Const-1" href="#Const">8.2 Const</a></li>
  </ul></li>
  <li><a id="toc-Continuous-integration-1" href="#Continuous-integration">9 Continuous integration</a>
  <ul class="no-bullet">
    <li><a id="toc-Transfer-from-Subversion-to-Github-1" href="#Transfer-from-Subversion-to-Github">9.1 Transfer from Subversion to Github</a></li>
    <li><a id="toc-Automatic-update-of-the-Git-mirror-1" href="#Automatic-update-of-the-Git-mirror">9.2 Automatic update of the Git mirror</a></li>
    <li><a id="toc-CI-testing-on-Travis_002dCI-1" href="#CI-testing-on-Travis_002dCI">9.3 CI testing on Travis-CI</a></li>
    <li><a id="toc-Releases-on-Github-1" href="#Releases-on-Github">9.4 Releases on Github</a></li>
  </ul></li>
  <li><a id="toc-install_002dtl-1" href="#install_002dtl">Appendix A install-tl</a>
  <ul class="no-bullet">
    <li><a id="toc-NAME" href="#install_002dtl-NAME">A.1 NAME</a></li>
    <li><a id="toc-SYNOPSIS" href="#install_002dtl-SYNOPSIS">A.2 SYNOPSIS</a></li>
    <li><a id="toc-DESCRIPTION" href="#install_002dtl-DESCRIPTION">A.3 DESCRIPTION</a></li>
    <li><a id="toc-REFERENCES" href="#install_002dtl-REFERENCES">A.4 REFERENCES</a></li>
    <li><a id="toc-OPTIONS" href="#install_002dtl-OPTIONS">A.5 OPTIONS</a></li>
    <li><a id="toc-PROFILES" href="#install_002dtl-PROFILES">A.6 PROFILES</a></li>
    <li><a id="toc-ENVIRONMENT-VARIABLES" href="#install_002dtl-ENVIRONMENT-VARIABLES">A.7 ENVIRONMENT VARIABLES</a></li>
    <li><a id="toc-AUTHORS-AND-COPYRIGHT" href="#install_002dtl-AUTHORS-AND-COPYRIGHT">A.8 AUTHORS AND COPYRIGHT</a></li>
  </ul></li>
  <li><a id="toc-tlmgr-1" href="#tlmgr">Appendix B tlmgr</a>
  <ul class="no-bullet">
    <li><a id="toc-NAME-1" href="#tlmgr-NAME">B.1 NAME</a></li>
    <li><a id="toc-SYNOPSIS-1" href="#tlmgr-SYNOPSIS">B.2 SYNOPSIS</a></li>
    <li><a id="toc-DESCRIPTION-1" href="#tlmgr-DESCRIPTION">B.3 DESCRIPTION</a></li>
    <li><a id="toc-EXAMPLES" href="#tlmgr-EXAMPLES">B.4 EXAMPLES</a></li>
    <li><a id="toc-OPTIONS-1" href="#tlmgr-OPTIONS">B.5 OPTIONS</a></li>
    <li><a id="toc-ACTIONS" href="#tlmgr-ACTIONS">B.6 ACTIONS</a>
    <ul class="no-bullet">
      <li><a id="toc-help" href="#tlmgr-help">B.6.1 help</a></li>
      <li><a id="toc-version" href="#tlmgr-version">B.6.2 version</a></li>
      <li><a id="toc-backup" href="#tlmgr-backup">B.6.3 backup</a></li>
      <li><a id="toc-candidates-pkg" href="#tlmgr-candidates-pkg">B.6.4 candidates <em>pkg</em></a></li>
      <li><a id="toc-check-_005boption_002e_002e_002e_005d-_005bdepends_007cexecutes_007cfiles_007crunfiles_007ctexmfdbs_007call_005d" href="#tlmgr-check-_005boption_002e_002e_002e_005d-_005bdepends_007cexecutes_007cfiles_007crunfiles_007ctexmfdbs_007call_005d">B.6.5 check [<em>option</em>...] [depends|executes|files|runfiles|texmfdbs|all]</a></li>
      <li><a id="toc-conf" href="#tlmgr-conf">B.6.6 conf</a></li>
      <li><a id="toc-dump_002dtlpdb-_005boption_002e_002e_002e_005d-_005b_002d_002djson_005d" href="#tlmgr-dump_002dtlpdb-_005boption_002e_002e_002e_005d-_005b_002d_002djson_005d">B.6.7 dump-tlpdb [<em>option</em>...] [&ndash;json]</a></li>
      <li><a id="toc-generate" href="#tlmgr-generate">B.6.8 generate</a></li>
      <li><a id="toc-gui" href="#tlmgr-gui">B.6.9 gui</a></li>
      <li><a id="toc-info" href="#tlmgr-info">B.6.10 info</a></li>
      <li><a id="toc-init_002dusertree" href="#tlmgr-init_002dusertree">B.6.11 init-usertree</a></li>
      <li><a id="toc-install-_005boption_002e_002e_002e_005d-pkg_002e_002e_002e" href="#tlmgr-install-_005boption_002e_002e_002e_005d-pkg_002e_002e_002e">B.6.12 install [<em>option</em>...] <em>pkg</em>...</a></li>
      <li><a id="toc-key" href="#tlmgr-key">B.6.13 key</a></li>
      <li><a id="toc-list" href="#tlmgr-list">B.6.14 list</a></li>
      <li><a id="toc-option" href="#tlmgr-option">B.6.15 option</a></li>
      <li><a id="toc-paper" href="#tlmgr-paper">B.6.16 paper</a></li>
      <li><a id="toc-path" href="#tlmgr-path">B.6.17 path</a></li>
      <li><a id="toc-pinning" href="#tlmgr-pinning">B.6.18 pinning</a></li>
      <li><a id="toc-platform" href="#tlmgr-platform">B.6.19 platform</a></li>
      <li><a id="toc-postaction" href="#tlmgr-postaction">B.6.20 postaction</a></li>
      <li><a id="toc-print_002dplatform" href="#tlmgr-print_002dplatform">B.6.21 print-platform</a></li>
      <li><a id="toc-print_002dplatform_002dinfo" href="#tlmgr-print_002dplatform_002dinfo">B.6.22 print-platform-info</a></li>
      <li><a id="toc-remove-_005boption_002e_002e_002e_005d-pkg_002e_002e_002e" href="#tlmgr-remove-_005boption_002e_002e_002e_005d-pkg_002e_002e_002e">B.6.23 remove [<em>option</em>...] <em>pkg</em>...</a></li>
      <li><a id="toc-repository" href="#tlmgr-repository">B.6.24 repository</a></li>
      <li><a id="toc-restore" href="#tlmgr-restore">B.6.25 restore</a></li>
      <li><a id="toc-search" href="#tlmgr-search">B.6.26 search</a></li>
      <li><a id="toc-shell" href="#tlmgr-shell">B.6.27 shell</a></li>
      <li><a id="toc-show" href="#tlmgr-show">B.6.28 show</a></li>
      <li><a id="toc-uninstall" href="#tlmgr-uninstall">B.6.29 uninstall</a></li>
      <li><a id="toc-update-_005boption_002e_002e_002e_005d-_005bpkg_002e_002e_002e_005d" href="#tlmgr-update-_005boption_002e_002e_002e_005d-_005bpkg_002e_002e_002e_005d">B.6.30 update [<em>option</em>...] [<em>pkg</em>...]</a></li>
    </ul></li>
    <li><a id="toc-CONFIGURATION-FILE-FOR-TLMGR" href="#tlmgr-CONFIGURATION-FILE-FOR-TLMGR">B.7 CONFIGURATION FILE FOR TLMGR</a></li>
    <li><a id="toc-CRYPTOGRAPHIC-VERIFICATION" href="#tlmgr-CRYPTOGRAPHIC-VERIFICATION">B.8 CRYPTOGRAPHIC VERIFICATION</a>
    <ul class="no-bullet">
      <li><a id="toc-Configuration-of-GnuPG-invocation" href="#tlmgr-Configuration-of-GnuPG-invocation">B.8.1 Configuration of GnuPG invocation</a></li>
    </ul></li>
    <li><a id="toc-USER-MODE" href="#tlmgr-USER-MODE">B.9 USER MODE</a>
    <ul class="no-bullet">
      <li><a id="toc-User-mode-install" href="#tlmgr-User-mode-install">B.9.1 User mode install</a></li>
      <li><a id="toc-User-mode-backup_002c-restore_002c-remove_002c-update" href="#tlmgr-User-mode-backup_002c-restore_002c-remove_002c-update">B.9.2 User mode backup, restore, remove, update</a></li>
      <li><a id="toc-User-mode-generate_002c-option_002c-paper" href="#tlmgr-User-mode-generate_002c-option_002c-paper">B.9.3 User mode generate, option, paper</a></li>
    </ul></li>
    <li><a id="toc-MULTIPLE-REPOSITORIES" href="#tlmgr-MULTIPLE-REPOSITORIES">B.10 MULTIPLE REPOSITORIES</a>
    <ul class="no-bullet">
      <li><a id="toc-Pinning" href="#tlmgr-Pinning">B.10.1 Pinning</a></li>
    </ul></li>
    <li><a id="toc-GUI-FOR-TLMGR" href="#tlmgr-GUI-FOR-TLMGR">B.11 GUI FOR TLMGR</a>
    <ul class="no-bullet">
      <li><a id="toc-Main-display" href="#tlmgr-Main-display">B.11.1 Main display</a>
      <ul class="no-bullet">
        <li><a id="toc-Display-configuration-area" href="#tlmgr-Display-configuration-area">B.11.1.1 Display configuration area</a></li>
        <li><a id="toc-Package-list-area" href="#tlmgr-Package-list-area">B.11.1.2 Package list area</a></li>
        <li><a id="toc-Main-display-action-buttons" href="#tlmgr-Main-display-action-buttons">B.11.1.3 Main display action buttons</a></li>
      </ul></li>
      <li><a id="toc-Menu-bar" href="#tlmgr-Menu-bar">B.11.2 Menu bar</a></li>
      <li><a id="toc-GUI-options" href="#tlmgr-GUI-options">B.11.3 GUI options</a></li>
    </ul></li>
    <li><a id="toc-MACHINE_002dREADABLE-OUTPUT" href="#tlmgr-MACHINE_002dREADABLE-OUTPUT">B.12 MACHINE-READABLE OUTPUT</a>
    <ul class="no-bullet">
      <li><a id="toc-Machine_002dreadable-update-and-install-output" href="#tlmgr-Machine_002dreadable-update-and-install-output">B.12.1 Machine-readable <code>update</code> and <code>install</code> output</a></li>
      <li><a id="toc-Machine_002dreadable-option-output" href="#tlmgr-Machine_002dreadable-option-output">B.12.2 Machine-readable <code>option</code> output</a></li>
    </ul></li>
    <li><a id="toc-ENVIRONMENT-VARIABLES-1" href="#tlmgr-ENVIRONMENT-VARIABLES">B.13 ENVIRONMENT VARIABLES</a></li>
    <li><a id="toc-AUTHORS-AND-COPYRIGHT-1" href="#tlmgr-AUTHORS-AND-COPYRIGHT">B.14 AUTHORS AND COPYRIGHT</a></li>
  </ul></li>
  <li><a id="toc-Index-1" href="#Index" rel="index">Index</a></li>
</ul>
</div>


<span id="Top"></span><div class="header">
<p>
Next: <a href="#Introduction" accesskey="n" rel="next">Introduction</a>, Up: <a href="http://tug.org/texinfohtml" accesskey="u" rel="up">(dir)</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="Building-TeX-Live-_00282020_0029"></span><h1 class="top">Building TeX Live (2020)</h1>

<p>For an overview of this manual, see <a href="#Introduction">Introduction</a>.
</p>
<table class="menu" border="0" cellspacing="0">
<tr><td align="left" valign="top">&bull; <a href="#Introduction" accesskey="1">Introduction</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">About this manual.
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#Overview-of-build-system" accesskey="2">Overview of build system</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">The TeX&nbsp;Live build system.
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#Prerequisites" accesskey="3">Prerequisites</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">Requirements for building TeX&nbsp;Live.
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#Building" accesskey="4">Building</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">The overall build process.
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#Installing" accesskey="5">Installing</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">How and where installation happens (or not).
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#Layout-and-infrastructure" accesskey="6">Layout and infrastructure</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">Autoconf macros, etc., in detail.
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#Configure-options" accesskey="7">Configure options</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">List of all configure options.
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#Coding-conventions" accesskey="8">Coding conventions</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">Conventions to follow.
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#Continuous-integration" accesskey="9">Continuous integration</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">Automated build testing.
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#install_002dtl">install-tl</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">The TeX&nbsp;Live installer.
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#tlmgr">tlmgr</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">The native TeX&nbsp;Live package manager.
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#Index" rel="index">Index</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">General index.
</td></tr>
</table>


<hr>
<span id="Introduction"></span><div class="header">
<p>
Next: <a href="#Overview-of-build-system" accesskey="n" rel="next">Overview of build system</a>, Previous: <a href="#Top" accesskey="p" rel="prev">Top</a>, Up: <a href="#Top" accesskey="u" rel="up">Top</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="Introduction-1"></span><h2 class="chapter">1 Introduction</h2>

<span id="index-introduction"></span>

<p>This manual (dated March 2020) corresponds to the TeX&nbsp;Live
2020 release.
</p>
<p>This manual is aimed at system installers and programmers, and focuses
on how to configure, build, and develop the TeX&nbsp;Live (TL) sources.  It is
also available as plain text files in the source tree:
<samp>source/README.*</samp>.
</p>
<p>The main <samp>source/README</samp> file in the TL source tree provides
maximally-terse information for doing a build, and portability
information for different systems, along with
<samp>source/doc/README.solaris</samp>.
</p>
<p>For information on acquiring the TL sources, see
<a href="https://tug.org/texlive/svn">https://tug.org/texlive/svn</a>.  The canonical source repository
uses Subversion, and we have no plans to change this.
</p>
<p>This manual does not duplicate the information found in other TL
documentation resources, such as:
</p>
<ul>
<li> The TeX&nbsp;Live web pages: <a href="https://tug.org/texlive">https://tug.org/texlive</a>.

</li><li> The web page describing how to build the binaries which 
are distributed with TeX&nbsp;Live: <a href="https://tug.org/texlive/build.html">https://tug.org/texlive/build.html</a>.

</li><li> The TeX&nbsp;Live user manual: <a href="https://tug.org/texlive/doc.html">https://tug.org/texlive/doc.html</a>, or
run <code>texdoc texlive</code>.

</li><li> Other TeX-related Texinfo manuals (see <cite><a href="https://tug.org/texinfohtml/web2c.html#Top">Web2c</a></cite>,
<cite><a href="https://tug.org/texinfohtml/kpathsea.html#Top">Kpathsea</a></cite>, etc.):
<a href="https://tug.org/texinfohtml/">https://tug.org/texinfohtml/</a>, or check the &lsquo;<samp>TeX</samp>&rsquo; category in
the GNU Info system.

</li><li> Package documentation:
<a href="https://tug.org/texlive/Contents/live/doc.html">https://tug.org/texlive/Contents/live/doc.html</a>, or the
<samp>doc.html</samp> file at the top level of the installed TL.

</li></ul>

<p>As an exception, the full documentation for <code>install-tl</code> and
<code>tlmgr</code> is included here as appendices, simply because it is easy
to do so.  The same text is available online (linked from
<a href="https://tug.org/texlive/doc.html">https://tug.org/texlive/doc.html</a>, or by invoking the program
with &lsquo;<samp>--help</samp>&rsquo; (or look at the end of the source).
</p>


<hr>
<span id="Overview-of-build-system"></span><div class="header">
<p>
Next: <a href="#Prerequisites" accesskey="n" rel="next">Prerequisites</a>, Previous: <a href="#Introduction" accesskey="p" rel="prev">Introduction</a>, Up: <a href="#Top" accesskey="u" rel="up">Top</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="Overview-of-build-system-1"></span><h2 class="chapter">2 Overview of build system</h2>

<span id="index-build-system_002c-design-of"></span>

<span id="index-Autoconf"></span>
<span id="index-Automake"></span>
<span id="index-Libtool"></span>
<span id="index-tests_002c-running"></span>
<p>The TeX&nbsp;Live build system was redesigned in 2009 to consistently use
Autoconf, Automake, and Libtool.  Thus, running<br>&nbsp;&nbsp;&nbsp;<code>configure
&amp;&amp; make &amp;&amp; make check &amp;&amp; make install</code><br>or the essentially-equivalent
top-level <code>Build</code> script suffices to build and install the TL
programs.  The <code>make check</code> clause performs various tests of the
generated programs&mdash;not strictly required but strongly recommended.
Running <code>configure --help</code> will display a comprehensive list of
all <code>configure</code> options.
</p>
<p>The main components of the TL build system are:
</p>
<dl compact="compact">
<dt><samp>libs/<var>lib</var></samp></dt>
<dd><p>Generic libraries.
</p>
</dd>
<dt><samp>texk/<var>lib</var></samp></dt>
<dd><p>TeX-specific libraries in subdirectories, notably
<var>lib</var>=<code>kpathsea</code>.  (The other one is <samp>texk/ptexenc</samp>.)
</p>
</dd>
<dt><samp>texk/<var>prog</var></samp></dt>
<dd><p>TeX-specific programs (that use Kpathsea).
</p>
</dd>
<dt><samp>utils/<var>prog</var></samp></dt>
<dd><p>Other programs (that don&rsquo;t use Kpathsea).
</p>
</dd>
</dl>

<span id="index-kpse_002dpkgs_002em4"></span>
<p>The primary design goal of the build system is modularity.  Each
program and library module (or package) specifies its own requirements
and properties, such as required libraries, whether an installed
(system) version of a library can be used, <code>configure</code> options to
be seen at the top level, and more.  An explicit list of all available
modules is kept in a single central place: <samp>m4/kpse-pkgs.m4</samp>.
</p>
<p>A second, related goal is to configure and build each library before
configuring any other (program or library) module which uses that
library.  This allows checking for properties and features of a
library built as part of the TL tree in much the same way as for a
system version of that library.
</p>
<p>All generic libraries and several programs are maintained
independently.  The corresponding modules use (most of) the
distributed source tree and document any modifications of that source.
</p>
<p>All this is for the sake of simplifying both upgrading of modules and
integrating new modules into the TL build system.  (Despite all
efforts, neither task is easy.)
</p>

<hr>
<span id="Prerequisites"></span><div class="header">
<p>
Next: <a href="#Building" accesskey="n" rel="next">Building</a>, Previous: <a href="#Overview-of-build-system" accesskey="p" rel="prev">Overview of build system</a>, Up: <a href="#Top" accesskey="u" rel="up">Top</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="Prerequisites-1"></span><h2 class="chapter">3 Prerequisites</h2>

<span id="index-prerequisites-for-building"></span>
<span id="index-requirements-for-building"></span>

<span id="index-compilers_002c-C-and-C_002b_002b11"></span>
<p>Overall, building the TeX&nbsp;Live programs, when using all libraries from
the TL source tree, requires C and C++11 compilers and GNU
<code>make</code>.  If <code>make</code> from your <code>PATH</code> is not GNU make,
you can set the <code>MAKE</code> environment variable to whatever is necessary.
</p>
<span id="index-GNU-make_002c-required"></span>
<span id="index-gmake_002c-required"></span>
<span id="index-FreeType"></span>
<p>GNU <code>make</code> is required only because of some third-party
libraries, notably FreeType; all the TL-maintained directories (and
Automake/Autoconf output in general) work with any reasonable
<code>make</code>.
</p>
<span id="index-C_002b_002b11_002c-required"></span>
<p>A C++11 compiler is similarly required because of the third-party
libraries ICU and Poppler; the program <code>dvisvgm</code> also requires
C++11.  It is possible to build everything else with older compilers,
but you have to remove the C++11-dependent sources.  See <a href="#Build-one-package">Build one package</a>.
</p>
<p>A few programs in the tree have additional requirements:
</p>
<dl compact="compact">
<dt><samp>web2c</samp></dt>
<dd><span id="index-perl_002c-required-by-web2c_002c-etc_002e"></span>
<p>requires <code>perl</code> for some tests run by <code>make check</code>.
</p>
</dd>
<dt><samp>xdvik</samp></dt>
<dt><samp>xpdfopen</samp></dt>
<dd><span id="index-X11-development_002c-required-by-X-clients"></span>
<p>require X11 headers and libraries, typically in &ldquo;development&rdquo; packages
that are not installed by default.
</p>
</dd>
<dt><samp>xetex</samp></dt>
<dd><span id="index-fontconfig-library_002c-required-by-xetex"></span>
<span id="index-ApplicationServices-Mac-framework_002c-required-by-xetex"></span>
<span id="index-Cocoa-Mac-framework_002c-required-by-xetex"></span>
<p>requires <samp>fontconfig</samp> (again both headers and library), or, for
MacOSX only, the <code>ApplicationServices</code> and <code>Cocoa</code>
frameworks.
</p>
</dd>
<dt><samp>xindy</samp></dt>
<dd><span id="index-clisp_002c-required-by-xindy"></span>
<span id="index-libsigsegv_002c-required-by-xindy"></span>
<p>requires GNU <code>clisp</code>, <code>libsigsegv</code>, and <code>libiconv</code>;
additionally, to build the rules and/or documentation: <code>perl</code>,
<code>latex</code>, <code>pdflatex</code>.
</p>
</dd>
</dl>

<p>Lacking the required tools, building these
programs must avoided, e.g.,<br>
<code>configure --without-x --disable-xetex --disable-xindy</code>
</p>
<p>Modifying source files induces more requirements, as one might expect:
</p>
<ul>
<li> Modification of any <code>.y</code> or <code>.l</code> source files requires
<samp>bison</samp> or <samp>flex</samp> to update the corresponding C sources.

</li><li> Modification of the sources for <code>.info</code> files requires
<code>makeinfo</code>.

</li><li> Modification of any part of the build system (M4 macros,
<samp>configure.ac</samp>, <samp>Makefile.am</samp>, or their fragments) requires
GNU M4, GNU Autoconf, GNU Automake, and GNU Libtool to update the
generated files.  Furthermore, to reliably reproduce the build files,
the original GNU releases of these tools must be used, not any distro
packaging of them.  See <a href="#Build-system-tools">Build system tools</a>, for more discussion.

</li></ul>

<p>If you haven&rsquo;t modified any source files, and infrastructure tools
such as <code>autoconf</code> or <code>makeinfo</code> are still being run, check
your timestamps&mdash;notably, <code>use-commit-times</code> must be set to
<code>yes</code> in your Subversion configuration (see <a href="#Build-system-tools">Build system tools</a>).  Barring buggy commits, no infrastructure tools are needed to
do a normal build.
</p>

<hr>
<span id="Building"></span><div class="header">
<p>
Next: <a href="#Installing" accesskey="n" rel="next">Installing</a>, Previous: <a href="#Prerequisites" accesskey="p" rel="prev">Prerequisites</a>, Up: <a href="#Top" accesskey="u" rel="up">Top</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="Building-1"></span><h2 class="chapter">4 Building</h2>

<span id="index-building"></span>
<span id="index-overall-build-process"></span>

<span id="index-Build-script"></span>
<p>The top-level <samp>Build</samp> script is intended to simplify building the
binaries distributed with TeX&nbsp;Live itself&mdash;we call this the &ldquo;native&rdquo;
TL build.  It runs <code>configure &amp;&amp; make world</code>, which builds
everything in a subdirectory of the main source tree (default
<samp>Work/</samp>), installs everything in another subdirectory (default
<samp>inst/</samp>), and finally runs <code>make check</code>.  The exact
directory and command names can be specified via environment variables
and a few leading options.  All remaining arguments (assignments or
options) are passed to the <samp>configure</samp> script.  Please take a
look at the <samp>./Build</samp> source file for more information; it is a
straightforward shell script.
</p>
<span id="index-source-directory-building_002c-not-supported"></span>
<span id="index-build-directory_002c-required"></span>
<p>An alternative, and the one we will mainly discuss here, is to run
<code>configure</code> and <code>make</code> in a suitable empty subdirectory.
Building in the source directory itself is not supported (sorry).
</p>
<table class="menu" border="0" cellspacing="0">
<tr><td align="left" valign="top">&bull; <a href="#Build-iteration" accesskey="1">Build iteration</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">What <code>configure</code> and <code>make</code> do in TL.
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#Build-problems" accesskey="2">Build problems</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">If the build fails.
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#Build-in-parallel" accesskey="3">Build in parallel</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">Simultaneous <code>make</code> processes.
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#Build-distribution" accesskey="4">Build distribution</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">Making a distribution tarball.
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#Build-one-package" accesskey="5">Build one package</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">Example of working on just one program.
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#Build-one-engine" accesskey="6">Build one engine</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">Example of building just one TeX engine.
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#Cross-compilation" accesskey="7">Cross compilation</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">Building on host X for target Y.
</td></tr>
</table>


<hr>
<span id="Build-iteration"></span><div class="header">
<p>
Next: <a href="#Build-problems" accesskey="n" rel="next">Build problems</a>, Up: <a href="#Building" accesskey="u" rel="up">Building</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="Build-iteration-1"></span><h3 class="section">4.1 Build iteration</h3>

<span id="index-build-iteration"></span>
<span id="index-iteration-through-sources_002c-by-configure-and-make"></span>

<p>Running the top-level <samp>configure</samp> script configures the top level
and the subdirectories <samp>libs</samp>, <samp>utils</samp>, and <samp>texk</samp>.
Running <code>make</code> at the top level first iterates over the
TeX-specific libraries, and then runs <code>make</code> in <samp>libs</samp>,
<samp>utils</samp>, and <samp>texk</samp> to iterate over the generic libraries,
utility programs, and TeX-specific programs, respectively.  These
iterations consist of two steps:
</p>
<ol>
<li> For each library or program module not yet configured, run
<code>configure</code>, adding the configure option <code>--disable-build</code>
if the module need not be built, otherwise running <code>make all</code>.

</li><li> For each library or program module that must be built, run
<code>make</code> for the selected target(s): <code>default</code> or
<code>all</code> to (re-)build, <code>check</code> to run tests, <code>install</code>,
etc.

</li></ol>

<p>Running the top-level <code>make</code> a second time iterates again over
all the library and program modules, and finds (should find) nothing
to be done.
</p>

<hr>
<span id="Build-problems"></span><div class="header">
<p>
Next: <a href="#Build-in-parallel" accesskey="n" rel="next">Build in parallel</a>, Previous: <a href="#Build-iteration" accesskey="p" rel="prev">Build iteration</a>, Up: <a href="#Building" accesskey="u" rel="up">Building</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="Build-problems-1"></span><h3 class="section">4.2 Build problems</h3>

<span id="index-build-problems"></span>
<span id="index-problems-with-build"></span>
<span id="index-failure-to-build"></span>
<span id="index-_002d_002dno_002dclean-Build-option"></span>
<p>If configuring or building a module fails, you should first try to
find and fix the problem.  Failing that, a possible workaround is to
remove the subdirectory for that module from the build tree (so
<code>configure</code> won&rsquo;t try to run there, and finally rerun the top
level <code>make</code> (or <samp>./Build</samp> <code>--no-clean</code>).
</p>

<hr>
<span id="Build-in-parallel"></span><div class="header">
<p>
Next: <a href="#Build-distribution" accesskey="n" rel="next">Build distribution</a>, Previous: <a href="#Build-problems" accesskey="p" rel="prev">Build problems</a>, Up: <a href="#Building" accesskey="u" rel="up">Building</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="Build-in-parallel-1"></span><h3 class="section">4.3 Build in parallel</h3>

<span id="index-building-in-parallel"></span>
<span id="index-parallel-build"></span>
<span id="index-cache-for-configure"></span>

<span id="index-dependencies_002c-with-several-output-files"></span>
<span id="index-_002dj-make-option"></span>
<p>The TL build system carefully formulates dependencies as well as
<code>make</code> rules when a tool (such as <code>tangle</code>, <code>ctangle</code>,
and <code>convert</code>) creates several output files.  This allows for
parallel builds (<code>make -j <var>n</var></code> with <em><var>n</var>&gt;1</em> or even
<code>make -j</code>) that can considerably speed up the TL build.
</p>
<span id="index-cache-file_002c-for-configure"></span>
<span id="index-_002dC-configure-option"></span>
<p>Incidentally, a noticeable speed-up can be independently gained by
using a configure cache file, i.e., specifying the <code>configure</code>
option <code>-C</code> (recommended).
</p>

<hr>
<span id="Build-distribution"></span><div class="header">
<p>
Next: <a href="#Build-one-package" accesskey="n" rel="next">Build one package</a>, Previous: <a href="#Build-in-parallel" accesskey="p" rel="prev">Build in parallel</a>, Up: <a href="#Building" accesskey="u" rel="up">Building</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="Build-distribution-1"></span><h3 class="section">4.4 Build distribution</h3>

<span id="index-building-a-distribution"></span>
<span id="index-distribution-tarball_002c-making"></span>

<span id="index-dist-and-distcheck-targets-for-make"></span>
<p>Running <code>make dist</code> at the top level creates a tarball
<samp>tex-live-<var>yyyy</var>-<var>mm</var>-<var>dd</var>.tar.xz</samp> from the TL source
tree.  Running <code>make distcheck</code> also verifies that this tarball
suffices to build and install all of TL.
</p>
<p>This is useful for checking consistency of the source tree and
Makefiles, but the result is not a complete or even usable TeX
system, since all the support files are lacking; see <a href="#Installing">Installing</a>.
We do not actually distribute any such tarball, and have no plans to
do so.
</p>

<hr>
<span id="Build-one-package"></span><div class="header">
<p>
Next: <a href="#Build-one-engine" accesskey="n" rel="next">Build one engine</a>, Previous: <a href="#Build-distribution" accesskey="p" rel="prev">Build distribution</a>, Up: <a href="#Building" accesskey="u" rel="up">Building</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="Build-one-package-1"></span><h3 class="section">4.5 Build one package</h3>

<span id="index-build-one-package"></span>
<span id="index-one-package_002c-building"></span>

<span id="index-_002d_002ddisable_002dall_002dpackages"></span>
<span id="index-build-on-demand"></span>
<p>To build one package, the basic idea is to use the <code>configure</code>
option <code>--disable-all-pkgs</code> (see <a href="#g_t_002d_002ddisable_002dall_002dpkgs"><code>--disable-all-pkgs</code></a>).
Then all program and library modules are configured but none are made.
However, the <samp>Makefile</samp>s still contain all build rules and
dependencies and can be invoked to build an individual program or
library, first building any required libraries.
</p>
<p>Here is an example from start to finish for working on
<code>dvipdfm-x</code>.  (Unfortunately, this does not suffice for building
one, or a subset, of the TeX engines; see the next section.)
</p>
<div class="example">
<pre class="example">mkdir mydir &amp;&amp; cd mydir  # new working directory

# Get sources (<a href="https://tug.org/texlive/svn">https://tug.org/texlive/svn</a>), e.g.:
rsync -a --delete --exclude=.svn --exclude=Work \
      tug.org::tldevsrc/Build/source/ .

# Create build directory:
mkdir Work &amp;&amp; cd Work

# Do the configure:
../configure --disable-all-pkgs --enable-dvipdfm-x \
  -C CFLAGS=-g CXXFLAGS=-g &gt;&amp;outc || echo fail

# Do the make:
make &gt;&amp;outm || echo fail

# Test:
cd texk/dvipdfm-x
make check
</pre></div>

<p>Then you can modify source files in <samp>mydir/texk/dvipdfm-x</samp> and
rerun <code>make</code> in <samp>mydir/Work/texk/dvipdfm-x</samp> to rebuild; that
build directory is where the binary ends up and where you can run a
debugger, etc.
</p>
<p>The second line of the <code>configure</code> invocation shows examples of
extra things you likely want to specify if you intend to hack the
sources (and not just build binaries): the <code>-C</code> speeds
<code>configure</code> by enabling a cache file, and the <code>CFLAGS</code> and
<code>CXXFLAGS</code> settings eliminate compiler optimization for debugging
purposes.
</p>
<p>Of course, you need to actually look at the output and check that
things are working.  There are many <code>configure</code> options you can
tweak as desired; check the output from <code>configure --help</code>.  It
is also a good idea to run <code>make check</code> after making any changes,
to ensure that whatever tests have been written still pass.
</p>
<span id="index-size-of-source-tree"></span>
<p>Finally, the above retrieves the entire TL source tree (several
hundred megabytes). It is natural to ask if this is really necessary.
Strictly speaking, the answer is no, but it is vastly more convenient
to do so. If you cut down the source tree, you must also give
additional <code>configure</code> flags to individually disable using system
versions of libraries, or the intricacies of the dependencies (such as
<code>teckit</code> requiring <code>zlib</code>) will have undesired side effects.
For an example of this approach, see the <code>build-pdftex.sh</code> script
in the <code>pdftex</code> development source (details at
<a href="http://pdftex.org">http://pdftex.org</a>), which is indeed such a cut-down TL source
tree.
</p>
<span id="index-C_002b_002b11_002c-removing-dependent-sources"></span>
<p>Some libraries and programs require C++11.  If you want to build with
an older compiler lacking such support, you need to (re)move those
source directories; specifying <code>--disable</code> for them does not
suffice, unfortunately.  Specifically, before running <code>configure</code>:
</p>
<div class="example">
<pre class="example">rm -rf libs/icu libs/poppler libs/graphite2 texk/dvisvgm
</pre></div>

<span id="index-_002d_002denable_002dmissing-to-ignore-dependencies"></span>
<p>Also, even with <code>--disable-all-pkgs</code>, dependencies are (currently)
checked.  For instance, if a (non-MacOSX) system does not have
<code>fontconfig</code>, XeTeX cannot be built (see <a href="#Prerequisites">Prerequisites</a>),
and <code>configure</code> will terminate even with <code>--disable-xetex</code>.
To proceed without such dependencies, specify <code>--enable-missing</code>
also.  (Patches to improve this would be most welcome.)
</p>
<span id="index-CC_003dc_002dcompiler"></span>
<span id="index-CXX_003dc_002b_002b_002dcompiler"></span>
<span id="index-OBJCXX_003dobjc_002dcompiler"></span>
<span id="index-gcc_002c-default-compilers"></span>
<p>By default, the <code>gcc</code> compilers will be used if present;
otherwise, individual packages may use something different.  You can
explicitly specify the compilers to be used with the environment
variables <code>CC</code>, <code>CXX</code>, and <code>OBJCXX</code>.
</p>

<hr>
<span id="Build-one-engine"></span><div class="header">
<p>
Next: <a href="#Cross-compilation" accesskey="n" rel="next">Cross compilation</a>, Previous: <a href="#Build-one-package" accesskey="p" rel="prev">Build one package</a>, Up: <a href="#Building" accesskey="u" rel="up">Building</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="Build-one-engine-1"></span><h3 class="section">4.6 Build one engine</h3>

<span id="index-build-one-engine"></span>
<span id="index-one-engine_002c-building"></span>
<span id="index-engine_002c-building-one"></span>

<p>Unfortunately, there is one common case where the steps in the
preceding section to build one package (see <a href="#Build-one-package">Build one package</a>) do
not suffice: wanting to build one, or a subset, of the TeX engines
(or other Web2c programs).
</p>
<p>The simplest way to do this is to disable everything and then
explicitly specify what to make. For example, to build only LuaTeX:
</p>
<div class="example">
<pre class="example">./configure --disable-all-pkgs  # or ./Build
cd Work/texk/web2c              # build directory
make luatex                     # specify target
</pre></div>

<p>This works because the <code>make</code> automatically runs <code>configure</code>
as necessary for the dependencies and target.  Furthermore, the source
tree can be cut down to just what is needed for the given engine
(the separate pdfTeX and LuaTeX source repositories do this, if
you want to peruse examples).
</p>
<p>We hope to improve the situation in the future.  Patches are welcome.
</p>

<hr>
<span id="Cross-compilation"></span><div class="header">
<p>
Previous: <a href="#Build-one-engine" accesskey="p" rel="prev">Build one engine</a>, Up: <a href="#Building" accesskey="u" rel="up">Building</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="Cross-compilation-1"></span><h3 class="section">4.7 Cross compilation</h3>

<span id="index-cross-compilation"></span>
<p>In a cross compilation a <em>build</em> system is used to create
binaries to be executed on a <em>host</em> system with different
hardware and/or operating system.
</p>
<span id="index-native-cross-compilation"></span>
<p>In simple cases, the build system can execute binaries for the host
system.  This typically occurs for bi-arch systems where, e.g.,
<code>i386-linux</code> binaries can run on <code>x86_64-linux</code> systems and
<code>win32</code> binaries can run on <code>win64</code> systems.  Although
sometimes called &ldquo;native cross&rdquo;, technically this is not cross
compilation at all.  In most such cases it suffices to specify
suitable compiler flags.  It might be useful to add the configure
option <code>--build=<var>host</var></code> to get the correct canonical host
name, but note that this should <em>not</em> be <code>--host=<var>host</var></code>
(see <a href="https://www.gnu.org/software/autoconf/manual/autoconf.html#Hosts-and-Cross_002dCompilation">Hosts and Cross-Compilation</a> in <cite>GNU Autoconf</cite>).
</p>
<p>In order to build, e.g., 32-bit binaries with <code>clang</code> on a 64-bit
MacOSX system one could use:
</p>
<div class="example">
<pre class="example">TL_BUILD_ENV=&quot;CC='clang -arch i386' \
  CXX='clang++ -arch i386' \
  OBJCXX='clang++ -arch i386'&quot; \
  ./Build --build=i386-apple-darwin
</pre></div>

<table class="menu" border="0" cellspacing="0">
<tr><td align="left" valign="top">&bull; <a href="#Cross-configuring" accesskey="1">Cross configuring</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">Configuring for cross compilation.
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#Cross-problems" accesskey="2">Cross problems</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">Cross compilation problems.
</td></tr>
</table>

<hr>
<span id="Cross-configuring"></span><div class="header">
<p>
Next: <a href="#Cross-problems" accesskey="n" rel="next">Cross problems</a>, Up: <a href="#Cross-compilation" accesskey="u" rel="up">Cross compilation</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="Cross-configuring-1"></span><h4 class="subsection">4.7.1 Cross configuring</h4>

<span id="index-cross-compilation-configuring"></span>
<span id="index-configuring_002c-for-cross-compilation"></span>

<span id="index-_002d_002dhost_003dhost"></span>
<span id="index-_002d_002dbuild_003dhost"></span>
<p>In a standard cross compilation, binaries for the host system cannot
execute on the build system and it is necessary to specify the
configure options <code>--host=<var>host</var></code> and
<code>--build=<var>build</var></code> with two different values.
</p>
<p>Building binaries requires suitable &ldquo;cross&rdquo; tools, e.g., compiler,
linker, and archiver, and perhaps a &ldquo;cross&rdquo; version of
<code>pkg-config</code> and similar to locate host system libraries.
Autoconf expects that these cross tools are given by their usual
variables or found under their usual name prefixed with
<code><var>host</var>-</code>.  Here a list of such tools and corresponding
variables:
</p>
<div class="example">
<pre class="example"><code>ar</code>                AR
<code>freetype-config</code>   FT2_CONFIG
<code>g++</code>               CXX
<code>gcc</code>               CC
<code>icu-config</code>        ICU_CONFIG
<code>objdump</code>           OBJDUMP
<code>pkg-config</code>        PKG_CONFIG
<code>ranlib</code>            RANLIB
<code>strip</code>             STRIP
</pre></div>

<span id="index-mingw32"></span>
<p>In order to, e.g., build <code>mingw32</code> binaries on
<code>x86_64-linux</code> with a cross compiler found as
<samp>i386-pc-mingw32-gcc</samp> one would specify
</p>
<div class="example">
<pre class="example">--host=i386-pc-mingw32 --build=x86_64-linux-gnu
</pre></div>

<p>or perhaps
</p>
<div class="example">
<pre class="example">--host=mingw32 --build=x86_64-linux CC=i386-pc-mingw32-gcc
</pre></div>

<p>but this latter, especially, might require adding <code>CXX</code> and others.
</p>
<p>Configure arguments such as <code>CFLAGS=&hellip;</code> refer to the cross
compiler.  If necessary, you can specify compilers and flags for the
few auxiliary C and C++ programs required for the build process as
configure arguments
</p>
<span id="index-BUILDCC_002c-BUILDCFLAGS_002c-_2026"></span>
<div class="example">
<pre class="example">BUILDCC=&hellip;
BUILDCPPFLAGS=&hellip;
BUILDCFLAGS=&hellip;
BUILDCXX=&hellip;
BUILDCXXFLAGS=&hellip;
BUILDLDFLAGS=&hellip;
</pre></div>

<hr>
<span id="Cross-problems"></span><div class="header">
<p>
Previous: <a href="#Cross-configuring" accesskey="p" rel="prev">Cross configuring</a>, Up: <a href="#Cross-compilation" accesskey="u" rel="up">Cross compilation</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="Cross-problems-1"></span><h4 class="subsection">4.7.2 Cross problems</h4>

<span id="index-cross-compilation-problems"></span>

<p>The fact that binaries for the host system cannot be executed on the
build system causes some problems.
</p>
<p>One problem is that configure tests using <code>AC_RUN_IFELSE</code> can
compile and link the test program but cannot execute it.  Such tests
should be avoided if possible and otherwise must supply a pessimistic
test result.
</p>
<span id="index-squeeze"></span>
<span id="index-web2c-program"></span>
<span id="index-freetype-cross-compiling"></span>
<span id="index-CC_005fBUILD"></span>
<p>Another problem arises if the build process must execute some
(auxiliary or installable) programs.  Auxiliary programs can be placed
into a subdirectory that is configured natively as is done for
<samp>texk/web2c/web2c</samp>, <samp>texk/dvipsk/squeeze</samp>, and
<samp>texk/xdvik/squeeze</samp>.  The module <samp>libs/freetype2</samp> uses the
value of <code>CC_BUILD</code>, <samp><var>build</var>-gcc</samp>, <samp>gcc</samp>, or
<samp>cc</samp> as the compiler for the auxiliary program.
</p>
<span id="index-ICU-cross-compiling"></span>
<p>The situation for installable programs needed by the build process is
somewhat different.  A rather expensive possibility, chosen for the ICU
libraries in module <samp>libs/icu</samp>, is to first compile natively for
the build system and in a second step to use these (uninstalled)
programs during the cross compilation.
</p>
<span id="index-tangle"></span>
<span id="index-ctangle"></span>
<span id="index-otangle"></span>
<span id="index-tie"></span>
<p>This approach would also be possible for the tools such as
<samp>tangle</samp> used in the module <samp>texk/web2c</samp> to build the WEB
programs, but that would require first building a native
<code>kpathsea</code> library.  To avoid this complication, cross
compilation of programs written in (C)WEB requires sufficiently recent
installed versions of <samp>tangle</samp>, <samp>ctangle</samp>, <samp>otangle</samp>,
and <samp>tie</samp>.
</p>
<span id="index-xindy-cross-compiling-requires-clisp"></span>
<p>Building <code>xindy</code> requires running the host system <code>clisp</code>
binary, thus cross compilation is painful, but possible.
</p>
<hr>
<span id="Installing"></span><div class="header">
<p>
Next: <a href="#Layout-and-infrastructure" accesskey="n" rel="next">Layout and infrastructure</a>, Previous: <a href="#Building" accesskey="p" rel="prev">Building</a>, Up: <a href="#Top" accesskey="u" rel="up">Top</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="Installing-1"></span><h2 class="chapter">5 Installing</h2>

<span id="index-installing"></span>
<p>This section discusses the results of <code>make install</code> in the
source tree.
</p>
<span id="index-support-files_002c-separate-from-build"></span>
<span id="index-texlive_002etlpdb_002c-TeX-Live-database"></span>
<span id="index-install_002dtl_002c-TeX-Live-installer"></span>
<span id="index-plain_002etex_002c-not-in-source-tree"></span>
<p>The main consideration is that <code>make install</code> is not enough to
make a usable TeX installation.  Beyond the compiled binaries,
(thousands of) support files are needed; just as a first example,
<samp>plain.tex</samp> is not in the source tree.
</p>
<p>These support files are maintained completely independently and are
not present in the TL source tree.  The best basis for dealing with them
is the TeX&nbsp;Live (plain text) database in
<samp>Master/tlpkg/texlive.tlpdb</samp>, and/or the TeX&nbsp;Live installer,
<code>install-tl</code>.  More information is under <samp>Master/tlpkg</samp> and
at <a href="https://tug.org/texlive/distro.html">https://tug.org/texlive/distro.html</a>.
</p>
<table class="menu" border="0" cellspacing="0">
<tr><td align="left" valign="top">&bull; <a href="#Installation-directories" accesskey="1">Installation directories</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">The prefix, <code>bindir</code>, etc., directories.
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#Linked-scripts" accesskey="2">Linked scripts</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">Scripts not maintained in the sources.
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#Distro-builds" accesskey="3">Distro builds</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">Configuring and building for OS distributions.
</td></tr>
</table>


<hr>
<span id="Installation-directories"></span><div class="header">
<p>
Next: <a href="#Linked-scripts" accesskey="n" rel="next">Linked scripts</a>, Up: <a href="#Installing" accesskey="u" rel="up">Installing</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="Installation-directories-1"></span><h3 class="section">5.1 Installation directories</h3>

<span id="index-installation-directories"></span>
<span id="index-directories_002c-for-installation"></span>
<span id="index-paths_002c-for-installation"></span>

<p>Running <code>make install</code> (or <code>make install-strip</code>) installs
executables in <code><var>bindir</var></code>, libraries in <code><var>libdir</var></code>,
headers in <code><var>includedir</var></code>, general data (including &ldquo;linked
scripts&rdquo;, see <a href="#Linked-scripts">Linked scripts</a>) in
<code><var>datarootdir</var>/texmf-dist</code>, man pages in <code><var>mandir</var></code>,
and Info files in <code><var>infodir</var></code>.
</p>
<p>The values of these directories are determined by <code>configure</code>
and can be specified explicitly as options such as
<code>--prefix=<var>prefix</var></code> or <code>--bindir=<var>bindir</var></code>;
otherwise, they are given by their usual Autoconf defaults:
</p>
<div class="example">
<pre class="example"><var>prefix</var>                  /usr/local
<var>exec_prefix</var>             <var>prefix</var>
<var>bindir</var>                  <var>exec_prefix</var>/bin
<var>libdir</var>                  <var>exec_prefix</var>/lib
<var>includedir</var>              <var>prefix</var>/include
<var>datarootdir</var>             <var>prefix</var>/share    
<var>mandir</var>                  <var>datarootdir</var>/man
<var>infodir</var>                 <var>datarootdir</var>/info
</pre></div>

<p>except possibly modified as follows:
</p>
<ul>
<li> If the option <code>--enable-multiplatform</code> is given,
<code>/<var>platform</var></code> (i.e., the canonical platform name) is appended
to <code><var>bindir</var></code> and <code><var>libdir</var></code>.  This is implied for a
native TL build.

</li><li> <p>In a native TL build, <code><var>datarootdir</var></code> is set to
<code><var>prefix</var></code>, <code><var>infodir</var></code> is set to
<code><var>prefix</var>/texmf-dist/doc/info</code>, and <code><var>mandir</var></code> to
<code><var>prefix</var>/texmf-dist/doc/man</code>, corresponding to the
directories used in the TL distribution.
</p>
</li></ul>

<p>The top-level <samp>configure</samp> script displays all these
installation paths.
</p>
<p>For the native TL build, the <code>Build</code> script leaves the binaries
in <samp>./inst/bin/<var>std-system-triplet</var></samp>.  The new binaries are
not directly usable from that location; they need to be copied to
<samp>Master/bin/<var>tl-platform</var></samp>.  The other files and directories
that end up in <samp>./inst/</samp> are ignored.
</p>

<hr>
<span id="Linked-scripts"></span><div class="header">
<p>
Next: <a href="#Distro-builds" accesskey="n" rel="next">Distro builds</a>, Previous: <a href="#Installation-directories" accesskey="p" rel="prev">Installation directories</a>, Up: <a href="#Installing" accesskey="u" rel="up">Installing</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="Linked-scripts-1"></span><h3 class="section">5.2 Linked scripts</h3>

<span id="index-linked-scripts"></span>
<span id="index-scripts_002c-linked-and-not-maintained"></span>

<span id="index-symlinks_002c-used-for-scripts"></span>
<span id="index-wrapper-binary-for-scripts-on-Windows"></span>
<span id="index-Windows_002c-invoking-scripts-on"></span>
<p>Quite a few executables are architecture-independent shell, Perl, or
other interpreted scripts, rather than compiled binaries.  A few are
maintained as part of the TL source tree, but most are maintained
elsewhere with copies under <samp>texk/texlive/linked_scripts</samp>.
</p>
<p>These so-called <em>linked scripts</em> are installed under
<code><var>datarootdir</var>/texmf-dist/scripts</code>; for Unix-like systems a
symbolic link is made in <code><var>bindir</var></code>.  For example, a symlink
points from <code><var>bindir</var>/ps2eps</code> to
<code><var>datarootdir</var>/texmf-dist/scripts/ps2eps/ps2eps.pl</code>.  For
Windows, a standard wrapper binary (copied to, e.g.,
<code><var>bindir</var>/ps2eps.exe</code>) serves the same purpose.  The source
for the wrapper is in <samp>texk/texlive/w32_wrapper</samp>.
</p>
<p>One reason for this is to avoid having many copies of the same
script; a more important reason is that it guarantees the scripts will
stay in sync across the different supported operating systems.
</p>
<span id="index-asymptote"></span>
<span id="index-biber"></span>
<span id="index-xindy"></span>
<span id="index-xz"></span>
<span id="index-wget"></span>
<p>Most important of all, we want the <code><var>bindir</var></code> resulting from
the build to be as close as possible to what is in the TL
distribution.  At present, there are a few exceptions&mdash;Asymptote,
Biber, Xindy&mdash;and each one creates considerable extra work.  We don&rsquo;t
want to add more.  (See <a href="https://tug.org/texlive/build.html">https://tug.org/texlive/build.html</a> for
information about building those exceptions, as well as the <code>xz</code>
and <code>wget</code> programs that are used in the TL infrastructure.)
</p>

<hr>
<span id="Distro-builds"></span><div class="header">
<p>
Previous: <a href="#Linked-scripts" accesskey="p" rel="prev">Linked scripts</a>, Up: <a href="#Installing" accesskey="u" rel="up">Installing</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="Distro-builds-1"></span><h3 class="section">5.3 Distro builds</h3>

<span id="index-distro_002c-building-for"></span>
<span id="index-operating-system-distribution_002c-building-for"></span>
<span id="index-system-distribution_002c-building-for"></span>

<span id="index-GNU_002fLinux-distro"></span>
<span id="index-BSD-distro"></span>
<p>Although they use the same code base, building for the native TL
distribution as shipped by the TeX user groups is typically quite
different from a &ldquo;distro&rdquo; build needed by, e.g., a full GNU/Linux or
BSD operating system distribution.
</p>
<span id="index-shared-libraries_002c-using-vs_002e-avoiding"></span>
<p>The native TL distribution uses shared libraries only when absolutely
necessary (<samp>libc</samp>, <samp>libm</samp>, X11 libraries, and
<samp>libfontconfig</samp>).  In contrast, a distro typically wants to use
as many shared libraries as possible from elsewhere on the system,
including TeX-specific libraries such as <samp>libkpathsea</samp> (even
though Kpathsea has never officially been released as a shared
library).  In addition, the installation paths will, in general, be
completely different.
</p>
<p>Here are the <code>configure</code> options that distro builds are likely to
find most relevant:
</p>
<dl compact="compact">
<dt><code>--disable-native-texlive-build</code></dt>
<dd><p>This must be specified to avoid interference from the many tweaks we
do for the native TL build.
</p>
</dd>
<dt><code>--with-banner-add=/<var>SomeDistro</var></code></dt>
<dd><p>This isn&rsquo;t technically required, but is strongly recommended, so your
build and your distro can be distinguished from others.
</p>
</dd>
<dt><code>--enable-shared</code></dt>
<dd><p>Build shared versions of the TeX-specific libraries (uses
<code>libtool</code>).
</p>
</dd>
<dt><code>--disable-static</code></dt>
<dd><p>Do not build the static versions of the TeX-specific libraries.
</p>
</dd>
<dt><code>--with-system-<var>lib</var></code></dt>
<dd><p>Look for and use a system version of the library <var>lib</var>.
<code>configure --help</code> will give you the list of possibilities.
</p>
</dd>
<dt><code>--with-<var>lib</var>-includes=<var>dir</var></code></dt>
<dt><code>--with-<var>lib</var>-libdir=<var>dir</var></code></dt>
<dd><p>If needed, allows you to specify where the headers/code are for the
given library <var>lib</var>.
</p>
</dd>
<dt><code>--prefix=/usr</code></dt>
<dt><code>--prefix=/opt/TeXLive</code></dt>
<dd><p>Or whatever your convention is.  The default is <samp>/usr/local</samp> and
you shouldn&rsquo;t install there for a distro.
</p>
</dd>
<dt><code>--libdir=\${exec_prefix}/lib64</code></dt>
<dd><p>May be needed for 64-bit bi-architecture (GNU/Linux) systems.
</p>
</dd>
</dl>

<span id="index-Preining_002c-Norbert"></span>
<span id="index-adapting-TeX-Live-for-distros"></span>
<p>You will need to take care of the support files mentioned above
(see <a href="#Installing">Installing</a>), and many other issues, such as font maps,
languages, and formats, independently of the build.  Norbert Preining
has written a detailed article on adapting TL for distros:
<a href="https://tug.org/TUGboat/tb34-3/tb108preining-distro.pdf">https://tug.org/TUGboat/tb34-3/tb108preining-distro.pdf</a>.  (If the
article needs updating in the future, perhaps we will merge it into
this document.)
</p>

<hr>
<span id="Layout-and-infrastructure"></span><div class="header">
<p>
Next: <a href="#Configure-options" accesskey="n" rel="next">Configure options</a>, Previous: <a href="#Installing" accesskey="p" rel="prev">Installing</a>, Up: <a href="#Top" accesskey="u" rel="up">Top</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="Layout-and-infrastructure-1"></span><h2 class="chapter">6 Layout and infrastructure</h2>

<span id="index-layout-of-sources"></span>
<span id="index-source-tree"></span>

<p>The TeX&nbsp;Live source tree is the subtree rooted at <samp>Build/source</samp> of
the complete TL distribution and contains the sources for all executables
distributed by TL, as well as <code>configure</code> scripts and <code>make</code>
rules to build and install them together with some of their support
files.
</p>
<table class="menu" border="0" cellspacing="0">
<tr><td align="left" valign="top">&bull; <a href="#Build-system-tools" accesskey="1">Build system tools</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">Modifying infrastructure files.
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#Top_002dlevel-directories" accesskey="2">Top-level directories</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">libs texk utils; am auxdir build-aux m4; doc extra.
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#Autoconf-macros" accesskey="3">Autoconf macros</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">TL-specific Autoconf macros.
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#Library-modules" accesskey="4">Library modules</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">Handling libraries, with examples.
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#Program-modules" accesskey="5">Program modules</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">Handling programs, with examples.
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#Extending-TeX-Live" accesskey="6">Extending TeX&nbsp;Live</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">Adding a new module.
</td></tr>
</table>


<hr>
<span id="Build-system-tools"></span><div class="header">
<p>
Next: <a href="#Top_002dlevel-directories" accesskey="n" rel="next">Top-level directories</a>, Up: <a href="#Layout-and-infrastructure" accesskey="u" rel="up">Layout and infrastructure</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="Build-system-tools-1"></span><h3 class="section">6.1 Build system tools</h3>

<span id="index-tools_002c-for-building"></span>
<span id="index-GNU-tools_002c-needed-for-building"></span>
<span id="index-infrastructure_002c-tools-needed-for"></span>

<p>As mentioned above (see <a href="#Prerequisites">Prerequisites</a>), a normal build has few
requirements.  On the other hand, if you want to modify the TeX&nbsp;Live
infrastructure sources, such as <samp>configure.ac</samp> or
<samp>Makefile.am</samp> files, you will need to have several additional
tools installed.
</p>
<p>In general, the TL build system uses the latest released versions of
the GNU build tools, installed directly from the original GNU releases
(e.g., by building them with <code>configure --prefix=/usr/local/gnu</code>
and having <code>PATH</code> start with <samp>/usr/local/gnu/bin</samp>).  We have
found that trying to use the versions of these tools packaged for
distros causes many extra hassles, so don&rsquo;t do that, tempting as it
may be.
</p>
<p>Currently the versions we use are:
</p>
<div class="display">
<pre class="display">autoconf (GNU Autoconf) 2.69
automake (GNU automake) 1.16.1
bison (GNU Bison) 3.5.2
flex 2.6.0
ltmain.sh (GNU libtool) 2.4.6
m4 (GNU M4) 1.4.18
makeinfo (GNU texinfo) 6.7
</pre></div>

<span id="index-reautoconf"></span>
<span id="index-_002d_002denable_002dmaintainer_002dmode"></span>
<p>These versions should be used to update the generated files (e.g.,
<samp>configure</samp> or <samp>Makefile.in</samp>) in all or parts of the TL tree
after their dependencies have been changed.  This can be done
explicitly with the top-level <code>reautoconf</code> script or implicitly
by using the configure option <code>--enable-maintainer-mode</code>.
</p>
<p>It has often turned out that the bison and flex versions are not
critical; however, the autotools versions are.  If you don&rsquo;t have the
given versions, get them before modifying the build infrastructure.
</p>
<span id="index-Subversion-repository"></span>
<span id="index-timestamps_002c-in-repository"></span>
<span id="index-use_002dcommit_002dtimes_002c-Subversion"></span>
<p>The files in the Subversion repository (see
<a href="https://tug.org/texlive/svn">https://tug.org/texlive/svn</a>) are all up to date (barring
bugs). For this to be reflected by their timestamps in your checkout,
be sure to set <samp>use-commit-times=yes</samp> in
<samp>~/.subversion/config</samp> or the equivalent.
</p>
<span id="index-touching-files-to-avoid-rerunning"></span>
<span id="index-make-_002dt"></span>
<p>If timestamps are wrong, you may also be able to avoid unnecessary
runs of <code>bison</code>, <code>flex</code>, or <code>makeinfo</code> with
<code>touch</code> of the generated (<samp>.c</samp>, <samp>.h</samp>, or <samp>.info</samp>)
files.  With <code>--enable-maintainer-mode</code> it may also be necessary
to <code>touch</code> first <samp>aclocal.m4</samp>, then <samp>configure</samp> and
<samp>config.h.in</samp> (or <samp>c-auto.in</samp>), and finally all
<samp>Makefile.in</samp> files.
</p>

<hr>
<span id="Top_002dlevel-directories"></span><div class="header">
<p>
Next: <a href="#Autoconf-macros" accesskey="n" rel="next">Autoconf macros</a>, Previous: <a href="#Build-system-tools" accesskey="p" rel="prev">Build system tools</a>, Up: <a href="#Layout-and-infrastructure" accesskey="u" rel="up">Layout and infrastructure</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="Top_002dlevel-directories-1"></span><h3 class="section">6.2 Top-level directories</h3>

<span id="index-directories_002c-top_002dlevel"></span>
<span id="index-top_002dlevel-directories"></span>

<p>Here is a brief description of the top-level directories in the TeX&nbsp;Live
source tree.
</p>
<p>As mentioned at the beginning of see <a href="#Overview-of-build-system">Overview of build system</a>, the main source directories are <samp>texk/</samp>
(TeX-specific programs and libraries), <samp>utils/</samp> (additional
programs), and <samp>libs/</samp> (generic libraries).
</p>
<span id="index-am_002f-top_002dlevel-directory"></span>
<span id="index-m4_002f-top_002dlevel-directory"></span>
<p>In addition, the top-level directories <samp>am/</samp> and <samp>m4/</samp>
contain <samp>Makefile.am</samp> fragments and Autoconf macros,
respectively, used in many places.  Specifically, the file
<samp>m4/kpse-pkgs.m4</samp> contains lists of all program and library
modules; missing modules are silently ignored.  (This helps in
creating cut-down source trees.)
</p>
<p>Each module contributes fragments (in separate files) defining its
capabilities and requirements to the <samp>configure.ac</samp> scripts at
the top-level and in the subdirectories <samp>libs</samp>, <samp>utils</samp>, and
<samp>texk</samp>.  The fragments from program modules supply
<code>configure</code> options to disable or enable building them; those
from library modules specify if an installed (system) version of that
library can be used.  This ultimately determines which modules need to
be built&mdash;although all modules must be configured for the benefit of
<samp>make</samp> targets such as <code>dist</code> or <code>distcheck</code>.
</p>
<span id="index-build_002daux_002f-top_002dlevel-directory"></span>
<span id="index-config_002eguess_002c-config_002esub_002c-_2026"></span>
<span id="index-Gnulib_002c-used-for-common-files"></span>
<p>The top-level <samp>build-aux/</samp> directory contains the common files
<samp>compile</samp>, <samp>config.guess</samp>, <samp>config.sub</samp>,
<samp>depcomp</samp>, etc.&nbsp;used by most packages.  These are taken from the
GNU Gnulib sources (<a href="https://www.gnu.org/software/gnulib">https://www.gnu.org/software/gnulib</a>), which
in turn synchronizes with any ultimate upstream repository.  There are
independent copies of some of these in a few other places, e.g.,
<samp>libs/freetype2/freetype-*/builds/unix/</samp>.  The <code>reautoconf</code>
script does not touch those, but a TL cron job keeps them in sync
(nightly).
</p>
<span id="index-Work_002f-top_002dlevel-directory"></span>
<span id="index-inst_002f-top_002dlevel-directory"></span>
<p>When the top-level <samp>./Build</samp> script is used to build TL, two more
two more top-level directories appear: <samp>Work/</samp> for the build tree,
and <samp>inst/</samp> for the install tree (from <code>make install</code>).
These names (and everything else about <samp>Build</samp>&rsquo;s operation) can
be changed by setting environment variables before running it; see the
script source.
</p>

<hr>
<span id="Autoconf-macros"></span><div class="header">
<p>
Next: <a href="#Library-modules" accesskey="n" rel="next">Library modules</a>, Previous: <a href="#Top_002dlevel-directories" accesskey="p" rel="prev">Top-level directories</a>, Up: <a href="#Layout-and-infrastructure" accesskey="u" rel="up">Layout and infrastructure</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="Autoconf-macros-1"></span><h3 class="section">6.3 Autoconf macros</h3>

<span id="index-autoconf-macros"></span>



<p>Here we describe a few of the Autoconf macros used in several
modules&mdash;many more are defined in the sources; see the top-level
<code>m4/</code> directory.  These general macros are supplemented by
module-specific macros in directories such as <samp>texk/dvipng/m4/</samp>;
some of those are described in following sections (see <a href="#Library-modules">Library modules</a> and <a href="#Program-modules">Program modules</a>).
</p>
<table class="menu" border="0" cellspacing="0">
<tr><td align="left" valign="top">&bull; <a href="#General-setup-macros" accesskey="1">Setup</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#Macros-for-programs" accesskey="2">Programs</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#Macros-for-compilers" accesskey="3">Compilers</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#Macros-for-libraries" accesskey="4">Libraries</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#Macros-for-library-and-header-flags" accesskey="5">Flags</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#Macros-for-Windows" accesskey="6">Windows</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
</table>

<hr>
<span id="General-setup-macros"></span><div class="header">
<p>
Next: <a href="#Macros-for-programs" accesskey="n" rel="next">Macros for programs</a>, Up: <a href="#Autoconf-macros" accesskey="u" rel="up">Autoconf macros</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="General-setup-macros-1"></span><h4 class="subsection">6.3.1 General setup macros</h4>

<span id="index-general-setup-macros"></span>
<span id="index-setup-macros_002c-general"></span>
<span id="index-macros_002c-general-setup"></span>
<p>The TL sources use two general setup macros:
</p>
<dl>
<dt id="index-KPSE_005fBASIC">Macro: <strong>KPSE_BASIC</strong> <em>(<var>name</var>, [<var>more-options</var>])</em></dt>
<dd><p>Initialize the basic TL infrastructure for module <var>name</var>:<br>&nbsp;&nbsp;&nbsp;<code>AM_INIT_AUTOMAKE([foreign <var>more-options</var>])</code><br>&nbsp;&nbsp;&nbsp;<code>AM_MAINTAINER_MODE</code><br>&nbsp;&nbsp;&nbsp;<code>KPSE_COMPILER_WARNINGS</code><br>
and make sure the C compiler understands function prototypes.  This is
used for all generic library and program modules.
</p></dd></dl>

<dl>
<dt id="index-KPSE_005fCOMMON">Macro: <strong>KPSE_COMMON</strong> <em>(<var>name</var>, [<var>more-options</var>])</em></dt>
<dd><p>Like <code>KPSE_BASIC</code> but add:<br>&nbsp;&nbsp;&nbsp;<code>LT_PREREQ([2.2.6])</code><br>&nbsp;&nbsp;&nbsp;<code>LT_INIT([win32-dll])</code><br>&nbsp;&nbsp;&nbsp;<code>AC_SYS_LARGEFILE</code><br>&nbsp;&nbsp;&nbsp;<code>AC_FUNC_FSEEKO</code><br>along with checks for frequently used functions,
headers, types, and structures.  This is used for TeX-specific
modules.
</p></dd></dl>


<hr>
<span id="Macros-for-programs"></span><div class="header">
<p>
Next: <a href="#Macros-for-compilers" accesskey="n" rel="next">Macros for compilers</a>, Previous: <a href="#General-setup-macros" accesskey="p" rel="prev">General setup macros</a>, Up: <a href="#Autoconf-macros" accesskey="u" rel="up">Autoconf macros</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="Macros-for-programs-1"></span><h4 class="subsection">6.3.2 Macros for programs</h4>

<span id="index-macros_002c-for-programs"></span>
<p>Macros for program checks:
</p>
<dl>
<dt id="index-KPSE_005fCHECK_005fLATEX">Macro: <strong>KPSE_CHECK_LATEX</strong></dt>
<dd><p>Set <code>LATEX</code> to the first of <code>latex</code>, <code>elatex</code>, or
<code>lambda</code> which exists in <code>PATH</code>, or to <code>no</code> if none of
them exists.  Call <code>AC_SUBST</code> for <code>LATEX</code>.  The result of
this test can be overridden by setting the <code>LATEX</code> environment
variable or the cache variable <code>ac_cv_prog_LATEX</code>.
</p></dd></dl>

<dl>
<dt id="index-KPSE_005fCHECK_005fPDFLATEX">Macro: <strong>KPSE_CHECK_PDFLATEX</strong></dt>
<dd><p>Check for <code>pdflatex</code> in <code>PATH</code> and set <code>PDFLATEX</code>.
</p></dd></dl>

<dl>
<dt id="index-KPSE_005fCHECK_005fPERL">Macro: <strong>KPSE_CHECK_PERL</strong></dt>
<dd><p>Check for <code>perl</code> or <code>perl5</code> in <code>PATH</code> and set
<code>PERL</code>.
</p></dd></dl>

<dl>
<dt id="index-KPSE_005fPROG_005fLEX">Macro: <strong>KPSE_PROG_LEX</strong></dt>
<dd><p>Call <code>AC_PROG_LEX</code> and add the flag <code>-l</code> for <code>flex</code>.
</p></dd></dl>


<hr>
<span id="Macros-for-compilers"></span><div class="header">
<p>
Next: <a href="#Macros-for-libraries" accesskey="n" rel="next">Macros for libraries</a>, Previous: <a href="#Macros-for-programs" accesskey="p" rel="prev">Macros for programs</a>, Up: <a href="#Autoconf-macros" accesskey="u" rel="up">Autoconf macros</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="Macros-for-compilers-1"></span><h4 class="subsection">6.3.3 Macros for compilers</h4>

<span id="index-macros_002c-for-compilers"></span>

<p>Macros for compiler-related checks:
</p>
<dl>
<dt id="index-KPSE_005fCOMPILER_005fWARNINGS">Macro: <strong>KPSE_COMPILER_WARNINGS</strong></dt>
<dd><span id="index-WARNING_005fC_005bXX_005dFLAGS"></span>
<p>When using the (Objective) C/C++ compiler, set
<code>WARNING_[OBJ]C[XX]FLAGS</code> to suitable warning flags (depending on
the value given to or implied for <code>--enable-compiler-warnings</code>).
Call <code>AC_SUBST</code> for them.  At present this assumes GNU compiler
warning options, but could be extended to others if necessary.
</p>
<span id="index-kpse_005fcv_005fwarning_005fcflags"></span>
<p>This macro caches its results in the <code>kpse_cv_warning_cflags</code>,
&hellip; variables.
</p></dd></dl>

<dl>
<dt id="index-KPSE_005fCOMPILER_005fVISIBILITY">Macro: <strong>KPSE_COMPILER_VISIBILITY</strong></dt>
<dd><p>When using the C or C++ compiler, try to set
<code>VISIBILITY_C[XX]FLAGS</code> to flags to hide external symbols.  Call
<code>AC_SUBST</code> for this variable.  At present this only tests for
the compiler option <code>-fvisibility=hidden</code>, but could be
extended if necessary.
</p>
<span id="index-kpse_005fcv_005fvisibility_005fc_005bxx_005dflags"></span>
<p>This macro caches its results in the <code>kpse_cv_visibility_cflags</code>
or <code>kpse_cv_visibility_cxxflags</code> variable.
</p></dd></dl>

<dl>
<dt id="index-KPSE_005fCXX_005fHACK">Macro: <strong>KPSE_CXX_HACK</strong></dt>
<dd><span id="index-static-linking-for-C_002b_002b"></span>
<span id="index-linking-C_002b_002b-libraries-statically"></span>
<span id="index-_002d_002denable_002dcxx_002druntime_002dhack"></span>
<span id="index-libstc_002b_002b_002c-statically-linking"></span>
<p>Provide the configure option <code>--enable-cxx-runtime-hack</code>.  If
enabled and when using <code>g++</code>, try to statically link with
<samp>libstdc++</samp>, notably improving portability of the resulting
binary.
</p>
<span id="index-kpse_005fcv_005fcxx_005fhack"></span>
<p>This macro caches its result in the <code>kpse_cv_cxx_hack</code> variable.
</p></dd></dl>


<hr>
<span id="Macros-for-libraries"></span><div class="header">
<p>
Next: <a href="#Macros-for-library-and-header-flags" accesskey="n" rel="next">Macros for library and header flags</a>, Previous: <a href="#Macros-for-compilers" accesskey="p" rel="prev">Macros for compilers</a>, Up: <a href="#Autoconf-macros" accesskey="u" rel="up">Autoconf macros</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="Macros-for-libraries-1"></span><h4 class="subsection">6.3.4 Macros for libraries</h4>

<span id="index-macros_002c-for-libraries"></span>
<p>One macro for a library check:
</p>
<dl>
<dt id="index-KPSE_005fLARGEFILE">Macro: <strong>KPSE_LARGEFILE</strong> <em>(<var>variable</var>, [<var>extra-define</var>])</em></dt>
<dd><p>Call <code>AC_SYS_LARGEFILE</code> and <code>AC_FUNC_FSEEKO</code> and append
suitable <code>-D</code> flags (optionally including
<code>-D<var>extra-define</var></code>) to <var>variable</var>.
</p></dd></dl>


<hr>
<span id="Macros-for-library-and-header-flags"></span><div class="header">
<p>
Next: <a href="#Macros-for-Windows" accesskey="n" rel="next">Macros for Windows</a>, Previous: <a href="#Macros-for-libraries" accesskey="p" rel="prev">Macros for libraries</a>, Up: <a href="#Autoconf-macros" accesskey="u" rel="up">Autoconf macros</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="Macros-for-library-and-header-flags-1"></span><h4 class="subsection">6.3.5 Macros for library and header flags</h4>

<span id="index-macros_002c-for-library-and-header-flags"></span>
<span id="index-flags_002c-macros-for-library-and-header"></span>
<span id="index-KPSE_005fLIB_005fFLAGS"></span>
<p>Each library module <samp>libs/<var>lib</var></samp> or <samp>texk/<var>lib</var></samp> is
supplemented by a macro <code>KPSE_<var>LIB</var>_FLAGS</code> (all uppercase)
that provides make variables for that library.  E.g., for
<samp>libs/libpng</samp>:
</p>
<dl>
<dt id="index-KPSE_005fLIBPNG_005fFLAGS">Macro: <strong>KPSE_LIBPNG_FLAGS</strong></dt>
<dd><p>Provide the configure option <code>--with-system-libpng</code>.  Set and
<code>AC_SUBST</code> <code>make</code> variables for modules using this library (either
an installed version or from the TeX&nbsp;Live tree):
</p>
<table>
<tr><td><code>LIBPNG_INCLUDES</code></td><td>for use in <code>CPPFLAGS</code>,</td></tr>
<tr><td><code>LIBPNG_LIBS</code></td><td>for use in <code>LDADD</code>,</td></tr>
<tr><td><code>LIBPNG_DEPEND</code></td><td>for use as a Makefile dependency,</td></tr>
<tr><td><code>LIBPNG_RULE</code></td><td>for the <code>make</code> rules to rebuild the library.</td></tr>
</table>
</dd></dl>

<dl>
<dt id="index-KPSE_005fADD_005fFLAGS">Macro: <strong>KPSE_ADD_FLAGS</strong> <em>(<var>name</var>)</em></dt>
<dd><p>Temporarily extend <code>CPPFLAGS</code> and <code>LIBS</code> with the values required
for the library module <code><var>name</var></code>.
</p></dd></dl>

<dl>
<dt id="index-KPSE_005fRESTORE_005fFLAGS">Macro: <strong>KPSE_RESTORE_FLAGS</strong></dt>
<dd><p>Restore <code>CPPFLAGS</code> and <code>LIBS</code> to their original values.
</p></dd></dl>

<p>As an example, the <samp>configure.ac</samp> file for a hypothetical program
<samp>utils/foo</samp> using <samp>libpng</samp>, and hence <samp>zlib</samp>, would
contain
</p><div class="example">
<pre class="example">KPSE_ZLIB_FLAGS
KPSE_LIBPNG_FLAGS
</pre></div>

<p>and its <samp>Makefile.am</samp> would be along these lines:
</p><div class="example">
<pre class="example">bin_PROGRAMS = foo
AM_CPPFLAGS = ${LIBPNG_INCLUDES} ${ZLIB_INCLUDES}
foo_LDADD = ${LIBPNG_LIBS} ${ZLIB_LIBS}
foo_DEPENDENCIES = ${ZLIB_DEPEND} ${LIBPNG_DEPEND}
## Rebuild libz
@ZLIB_RULE@
## Rebuild libpng
@LIBPNG_RULE@
</pre></div>

<p>If it were necessary to examine whether certain <samp>zlib</samp> or
<samp>libpng</samp> features were available, <samp>configure.ac</samp> should be
continued this way:
</p><div class="example">
<pre class="example">KPSE_ADD_FLAGS([zlib])
&hellip; # <span class="roman">tests for <samp>zlib</samp> features, if any</span>
KPSE_ADD_FLAGS([libpng])
&hellip; # <span class="roman">tests for <samp>libpng</samp> features</span>
KPSE_RESTORE_FLAGS # <span class="roman">restore <code>CPPFLAGS</code> and <code>LIBS</code></span>
</pre></div>


<hr>
<span id="Macros-for-Windows"></span><div class="header">
<p>
Previous: <a href="#Macros-for-library-and-header-flags" accesskey="p" rel="prev">Macros for library and header flags</a>, Up: <a href="#Autoconf-macros" accesskey="u" rel="up">Autoconf macros</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="Macros-for-Windows-1"></span><h4 class="subsection">6.3.6 Macros for Windows</h4>

<span id="index-macros_002c-for-Windows"></span>
<span id="index-Windows_002c-macros-for"></span>
<p>Windows differs in several aspects from Unix-like systems, many of
them due to the lack of symbolic links.
</p>
<dl>
<dt id="index-KPSE_005fCHECK_005fWIN32">Macro: <strong>KPSE_CHECK_WIN32</strong></dt>
<dd><span id="index-kpse_005fcv_005fhave_005fwin32"></span>
<p>Check if compiling for a Windows system.  The result is either
<code>no</code> for Unix-like systems (including Cygwin), <code>mingw32</code> for
Windows with GCC, or <code>native</code> for Windows with MSVC.  The result
is cached in the <code>kpse_cv_have_win32</code> variable.
</p></dd></dl>

<dl>
<dt id="index-KPSE_005fCOND_005fWIN32">Macro: <strong>KPSE_COND_WIN32</strong></dt>
<dd><span id="index-WIN32_002c-Automake-conditional"></span>
<p>Call <code>KPSE_CHECK_WIN32</code> and define the Automake conditional
<code>WIN32</code> (<code>true</code> if the value of <code>kpse_cv_have_win32</code> is
not <code>no</code>).
</p></dd></dl>

<dl>
<dt id="index-KPSE_005fCOND_005fMINGW32">Macro: <strong>KPSE_COND_MINGW32</strong></dt>
<dd><span id="index-MINGW32_002c-Automake-conditional"></span>
<p>Call <code>KPSE_COND_WIN32</code> and define the Automake conditional
<code>MINGW32</code> (<code>true</code> if the value of <code>kpse_cv_have_win32</code> is
<code>mingw32</code>).
</p></dd></dl>

<dl>
<dt id="index-KPSE_005fCOND_005fWIN32_005fWRAP">Macro: <strong>KPSE_COND_WIN32_WRAP</strong></dt>
<dd><span id="index-WIN32_005fWRAP_002c-Automake-conditional"></span>
<span id="index-runscript_002eexe"></span>
<p>Call <code>KPSE_COND_WIN32</code> and define the Automake conditional
<code>WIN32_WRAP</code> (<code>true</code> if the standard Windows wrapper
(<samp>texk/texlive/w32_wrapper/runscript.exe</samp>) exists.  This wrapper
is used on Windows instead of symlinks for the &ldquo;linked scripts&rdquo;
(see <a href="#Linked-scripts">Linked scripts</a>).
</p></dd></dl>

<dl>
<dt id="index-KPSE_005fWIN32_005fCALL">Macro: <strong>KPSE_WIN32_CALL</strong></dt>
<dd><span id="index-callexe_002ec"></span>
<p>Call <code>KPSE_COND_WIN32</code> and check if the file
<samp>texk/texlive/w32_wrapper/callexe.c</samp> exists; if it does, create a
symlink in the build tree.  Compiling <samp>callexe.c</samp> with
<code>-DEXEPROG='&quot;<var>foo</var>.exe&quot;'</code> and installing <samp>callexe.exe</samp>
as <code><var>bar</var>.exe</code> is used on Windows instead of a symlink
<code><var>bar</var>-&gt;<var>foo</var></code> for Unix-like systems.
</p></dd></dl>


<hr>
<span id="Library-modules"></span><div class="header">
<p>
Next: <a href="#Program-modules" accesskey="n" rel="next">Program modules</a>, Previous: <a href="#Autoconf-macros" accesskey="p" rel="prev">Autoconf macros</a>, Up: <a href="#Layout-and-infrastructure" accesskey="u" rel="up">Layout and infrastructure</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="Library-modules-1"></span><h3 class="section">6.4 Library modules</h3>

<span id="index-library-modules"></span>
<span id="index-modules_002c-for-libraries"></span>
<p>Here we discuss some specifics for a few of the libraries in TL, both
for the details themselves, and as a way of illuminating the general
structure and variation.
</p>
<table class="menu" border="0" cellspacing="0">
<tr><td align="left" valign="top">&bull; <a href="#png-library" accesskey="1"><code>png</code> library</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top"><samp>libs/libpng</samp>
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#zlib-library" accesskey="2"><code>zlib</code> library</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top"><samp>libs/zlib</samp>
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#freetype-library" accesskey="3"><code>freetype</code> library</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top"><samp>libs/freetype2</samp>
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#kpathsea-library" accesskey="4"><code>kpathsea</code> library</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top"><samp>texk/kpathsea</samp>
</td></tr>
</table>

<hr>
<span id="png-library"></span><div class="header">
<p>
Next: <a href="#zlib-library" accesskey="n" rel="next"><code>zlib</code> library</a>, Up: <a href="#Library-modules" accesskey="u" rel="up">Library modules</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="The-png-library-in-libs_002flibpng"></span><h4 class="subsection">6.4.1 The <code>png</code> library in <samp>libs/libpng</samp></h4>

<span id="index-png-library"></span>
<span id="index-libpng-library"></span>
<p>The &ldquo;generic&rdquo; <code>png</code> library uses the source tree in the
subdirectory <samp>libpng-src/</samp>, with all modifications for TL
recorded in <samp>TLpatches/*</samp>.  The <samp>configure.ac</samp> fragment
<samp>ac/withenable.ac</samp> contains
</p>
<div class="example">
<pre class="example">KPSE_WITH_LIB([libpng], [zlib])
</pre></div>

<p>to specify the module name and indicate the dependency on
<code>zlib</code>.  A third literal argument &lsquo;<code>tree</code>&rsquo; would specify that
the library from the TeX&nbsp;Live tree cannot be replaced by a system
version.  That not being the case here, a second fragment
<samp>ac/libpng.ac</samp> contains
</p>
<span id="index-KPSE_005fTRY_005fLIB"></span>
<div class="example">
<pre class="example">KPSE_TRY_LIB([libpng],
             [#include &lt;png.h&gt;],
             [png_structp png; png_voidp io; png_rw_ptr fn;
png_set_read_fn(png, io, fn);])
</pre></div>

<p>thus providing the simple C code
</p>
<div class="example">
<pre class="example">#include &lt;png.h&gt;
int main ()
{ png_structp png; png_voidp io; png_rw_ptr fn;
  png_set_read_fn(png, io, fn);
  return 0; }
</pre></div>

<span id="index-KPSE_005fTRY_005fLIBXX"></span>
<p>which Autoconf uses to verify the usability of a system
version with C code.  The analogous macro <code>KPSE_TRY_LIBXX</code> would
check using C++.  These fragments are included by the
<samp>configure.ac</samp> at the top level of TL
(<code>Build/source/configure.ac</code>).
</p>
<span id="index-proxy-build-system"></span>
<p>For this library, like many other modules, a proxy build system for TL
is used, consisting of our own <samp>configure.ac</samp>,
<samp>Makefile.am</samp>, <samp>include/Makefile.am</samp>; the distributed build
system is not used.  (Consequently, a few generated files and
auxiliary scripts are removed from the distributed source tree.)
</p>
<p>The public headers <samp>png.h</samp>, <samp>pngconf.h</samp>, and
<samp>pnglibconf.h</samp> are &ldquo;installed&rdquo; (as symlinks) under
<samp>include/</samp> in the build tree exactly as they are for a system
version under, e.g., <samp>/usr/include/</samp>.
</p>
<span id="index-kpse_002dlibpng_002dflags_002em4"></span>
<span id="index-KPSE_005fLIBPNG_005fFLAGS-1"></span>
<p>The module is supplemented by the file <samp>m4/kpse-libpng-flags.m4</samp>
that defines the M4 macro <code>KPSE_LIBPNG_FLAGS</code> used by all modules
depending on this library in their <samp>configure.ac</samp> to generate the
<code>make</code> variables <code>LIBPNG_INCLUDES</code> for use in
<code>CPPFLAGS</code>, <code>LIBPNG_LIBS</code> for use in <code>LDADD</code>,
<code>LIBPNG_DEPEND</code> for use as dependencies, and <code>LIBPNG_RULE</code>
for the <code>make</code> rules to rebuild the library.
</p>
<p><samp>m4/kpse-libpng-flags.m4</samp> also supplies the configure option
<code>--with-system-libpng</code>, which then uses <code>pkg-config</code> to
determine the flags required for the system library.
</p>

<hr>
<span id="zlib-library"></span><div class="header">
<p>
Next: <a href="#freetype-library" accesskey="n" rel="next"><code>freetype</code> library</a>, Previous: <a href="#png-library" accesskey="p" rel="prev"><code>png</code> library</a>, Up: <a href="#Library-modules" accesskey="u" rel="up">Library modules</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="The-zlib-library-in-libs_002fzlib"></span><h4 class="subsection">6.4.2 The <code>zlib</code> library in <samp>libs/zlib</samp></h4>

<span id="index-zlib-library"></span>

<span id="index-kpse_002dzlib_002dflags_002em4"></span>
<p>This generic library is very much analogous to <code>libpng</code>, but
without the dependency on any other library.  The file
<samp>m4/kpse-zlib-flags.m4</samp> supplies the configure option
<code>--with-system-zlib</code>, as well as <code>--with-zlib-includes</code> and
<code>--with-zlib-libdir</code> to specify non-standard locations of the
<code>zlib</code> headers and/or library.
</p>

<hr>
<span id="freetype-library"></span><div class="header">
<p>
Next: <a href="#kpathsea-library" accesskey="n" rel="next"><code>kpathsea</code> library</a>, Previous: <a href="#zlib-library" accesskey="p" rel="prev"><code>zlib</code> library</a>, Up: <a href="#Library-modules" accesskey="u" rel="up">Library modules</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="The-freetype-library-in-libs_002ffreetype2"></span><h4 class="subsection">6.4.3 The <code>freetype</code> library in <samp>libs/freetype2</samp></h4>

<span id="index-freetype-library"></span>
<span id="index-wrapper-build-system"></span>

<p>This module uses a wrapper build system.  In contrast to the proxy
build described earlier, the wrapper build has an almost trivial
<samp>configure.ac</samp> and a <samp>Makefile.am</samp> which invokes the
<code>configure</code> and <code>make</code> in the distributed source, followed
by <code>make install</code> with the TL build tree as destination.  In
other words, this actually uses the build system provided by upstream
(possibly patched).
</p>
<span id="index-freetype_002dconfig"></span>
<p>The flags required for the system library are obtained through
<code>freetype-config</code>.
</p>

<hr>
<span id="kpathsea-library"></span><div class="header">
<p>
Previous: <a href="#freetype-library" accesskey="p" rel="prev"><code>freetype</code> library</a>, Up: <a href="#Library-modules" accesskey="u" rel="up">Library modules</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="The-kpathsea-library-in-texk_002fkpathsea"></span><h4 class="subsection">6.4.4 The <code>kpathsea</code> library in <samp>texk/kpathsea</samp></h4>

<span id="index-kpathsea-library"></span>

<p>This is one of the TeX-specific libraries that are maintained as
part of TeX&nbsp;Live (see <cite><a href="https://tug.org/texinfohtml/kpathsea.html#Top">Kpathsea
<span class="roman">(<a href="tug.org/kpathsea">tug.org/kpathsea</a>)</span></a></cite>); the other is <code>ptexenc</code>.  These
TeX libraries are Libtool libraries (static and/or shared) and are
installed by <code>make install</code> together with the programs.  They
are, however, not part of the TL DVD as distributed by TeX user
groups, and have never been officially released for standalone use.
</p>
<span id="index-_002d_002dwith_002dsystem_002dkpathsea"></span>
<p>It is possible, and probably useful for distro builds (see <a href="#Distro-builds">Distro builds</a>), to specify the configure option
<code>--with-system-kpathsea</code> in order to use a system version of the
library.  Programs outside the TL tree should use <code>pkg-config</code>
for the required flags.
</p>
<span id="index-kpathsea_002eac"></span>
<span id="index-mktex_002eac"></span>
<span id="index-_002d_002denable_002dmktextfm_002ddefault"></span>
<span id="index-mktextfm"></span>
<p>In addition to <samp>kpathsea/ac/withenable.ac</samp> and
<samp>kpathsea/ac/kpathsea.ac</samp> here there is a third fragment
<samp>kpathsea.ac/mktex.ac</samp>, included by both <samp>withenable.ac</samp> and
<samp>configure.ac</samp>, which supplies configure options such as
<code>--enable-mktextfm-default</code>. These determine the compile time
default of whether or not to run <code>mktextfm</code> (and similar) to
generate a missing <samp>.tfm</samp> (or whatever) file.  In any case,
however, the command line options <code>-mktex=tfm</code> or
<code>-no-mktex=tfm</code> for the TeX-like engines override this
default.
</p>

<hr>
<span id="Program-modules"></span><div class="header">
<p>
Next: <a href="#Extending-TeX-Live" accesskey="n" rel="next">Extending TeX&nbsp;Live</a>, Previous: <a href="#Library-modules" accesskey="p" rel="prev">Library modules</a>, Up: <a href="#Layout-and-infrastructure" accesskey="u" rel="up">Layout and infrastructure</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="Program-modules-1"></span><h3 class="section">6.5 Program modules</h3>

<span id="index-program-modules"></span>
<span id="index-modules_002c-for-programs"></span>
<p>As with libraries (see <a href="#Library-modules">Library modules</a>), here we discuss the
details for a few of the programs in TL.
</p>
<table class="menu" border="0" cellspacing="0">
<tr><td align="left" valign="top">&bull; <a href="#t1utils-package" accesskey="1"><code>t1utils</code> package</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top"><samp>utils/t1utils</samp>
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#xindy-package" accesskey="2"><code>xindy</code> package</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top"><samp>utils/xindy</samp>
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#xdvik-package" accesskey="3"><code>xdvik</code> package</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top"><samp>texk/xdvik</samp>
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#asymptote" accesskey="4"><code>asymptote</code></a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top"><samp>utils/asymptote</samp>
</td></tr>
</table>


<hr>
<span id="t1utils-package"></span><div class="header">
<p>
Next: <a href="#xindy-package" accesskey="n" rel="next"><code>xindy</code> package</a>, Up: <a href="#Program-modules" accesskey="u" rel="up">Program modules</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="The-t1utils-package-in-utils_002ft1utils"></span><h4 class="subsection">6.5.1 The <code>t1utils</code> package in <samp>utils/t1utils</samp></h4>

<span id="index-t1utils-package"></span>

<p>Here we use the distributed source tree <samp>t1utils-src</samp> with
modifications documented in <samp>TLpatches/*</samp> and a proxy build
system consisting of <samp>configure.ac</samp> and <samp>Makefile.am</samp>.  The
fragment <samp>ac/withenable.ac</samp> contains
</p>
<div class="example">
<pre class="example">KPSE_ENABLE_PROG([t1utils])
</pre></div>

<p>specifying the module name without any dependencies, and
supplies the configure option <code>--disable-t1utils</code>.
</p>

<hr>
<span id="xindy-package"></span><div class="header">
<p>
Next: <a href="#xdvik-package" accesskey="n" rel="next"><code>xdvik</code> package</a>, Previous: <a href="#t1utils-package" accesskey="p" rel="prev"><code>t1utils</code> package</a>, Up: <a href="#Program-modules" accesskey="u" rel="up">Program modules</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="The-xindy-package-in-utils_002fxindy"></span><h4 class="subsection">6.5.2 The <code>xindy</code> package in <samp>utils/xindy</samp></h4>

<span id="index-xindy-1"></span>

<p>This module uses the distributed source tree <samp>xindy-src/</samp> with
modifications documented in <samp>TLpatches/*</samp>, and a wrapper
<samp>configure.ac</samp> and <samp>Makefile.am</samp> that descends into
<samp>xindy-src</samp>.
</p>
<p>The <code>xindy</code> build requires a <samp>make</samp> that supports a
<code>VPATH</code> build, can handle all targets, and do not refer to
<code>${top_srcdir}</code> or <code>${top_builddir}</code>.  The fragment
<code>xindy/ac/withenable.ac</code> contains
</p>
<div class="example">
<pre class="example">KPSE_ENABLE_PROG([xindy], , [disable])
m4_include(kpse_TL[utils/xindy/ac/xindy.ac])
m4_include(kpse_TL[utils/xindy/ac/clisp.ac])
</pre></div>

<p>where <code>disable</code> in the third argument indicates that
<code>xindy</code> is only built if explicitly enabled by the user with
<code>configure --enable-xindy</code> (the need for <code>clisp</code> makes it
too painful to enable by default).
</p>
<p>The additional fragments <samp>ac/xindy.ac</samp> and <samp>ac/clisp.ac</samp>
specify more <code>configure</code> options to be seen at the top level,
with <samp>ac/xindy.ac</samp> also included by <samp>configure.ac</samp>.
</p>

<hr>
<span id="xdvik-package"></span><div class="header">
<p>
Next: <a href="#asymptote" accesskey="n" rel="next"><code>asymptote</code></a>, Previous: <a href="#xindy-package" accesskey="p" rel="prev"><code>xindy</code> package</a>, Up: <a href="#Program-modules" accesskey="u" rel="up">Program modules</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="The-xdvik-package-in-texk_002fxdvik"></span><h4 class="subsection">6.5.3 The <code>xdvik</code> package in <samp>texk/xdvik</samp></h4>

<span id="index-xdvik"></span>

<p>This package is maintained as part of the TeX&nbsp;Live tree with sources in
its own directory (<samp>texk/xdvik/</samp>).  The fragment
<code>xdvik/ac/withenable.ac</code> contains
</p>
<div class="example">
<pre class="example">dnl extra_dirs = texk/xdvik/squeeze
KPSE_ENABLE_PROG([xdvik], [kpathsea freetype2], [x])
m4_include(kpse_TL[texk/xdvik/ac/xdvik.ac])
</pre></div>

<span id="index-squeeze_002fconfigure_002eac"></span>
<span id="index-cross-compilation_002c-with-host-binary"></span>
<p>thus specifying dependencies on the <code>kpathsea</code>,
<code>freetype</code>, and X11 libraries.  The M4 comment (following
<code>dnl</code>) signals the subsidiary <samp>squeeze/configure.ac</samp>.  This
is needed because the main executable <samp>xdvi-bin</samp> (to be installed
as, e.g., <samp>xdvi-xaw</samp>) is for the <code>host</code> system whereas the
auxiliary program <samp>squeeze/squeeze</samp> has to run on the
<code>build</code> system; in a cross compilation, these differ.
</p>
<span id="index-_002d_002dwith_002dxdvi_002dx_002dtoolkit"></span>
<p>The additional fragment <code>ac/xdvik.ac</code> is also included by
<samp>configure.ac</samp> and supplies the configure option
<code>--with-xdvi-x-toolkit</code> also seen at the top level.
</p>

<hr>
<span id="asymptote"></span><div class="header">
<p>
Previous: <a href="#xdvik-package" accesskey="p" rel="prev"><code>xdvik</code> package</a>, Up: <a href="#Program-modules" accesskey="u" rel="up">Program modules</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="The-subdirectory-utils_002fasymptote"></span><h4 class="subsection">6.5.4 The subdirectory <samp>utils/asymptote</samp></h4>

<span id="index-asymptote-1"></span>
<span id="index-xasy"></span>

<span id="index-OpenGL_002c-required-for-Asymptote"></span>
<p>This subdirectory contains the sources for <samp>asy</samp> and <samp>xasy</samp>
but due to its complexity and prerequisites (e.g., OpenGL) it is
not part of the TL build system.  These programs must be built and
installed independently, but are included on the TL DVD together with
their support files.  See <a href="https://tug.org/build.html#asymptote">https://tug.org/build.html#asymptote</a>.
</p>

<hr>
<span id="Extending-TeX-Live"></span><div class="header">
<p>
Previous: <a href="#Program-modules" accesskey="p" rel="prev">Program modules</a>, Up: <a href="#Layout-and-infrastructure" accesskey="u" rel="up">Layout and infrastructure</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="Extending-TeX-Live-1"></span><h3 class="section">6.6 Extending TeX&nbsp;Live</h3>

<span id="index-extending-TeX-Live"></span>
<span id="index-adding-to-TeX-Live"></span>

<p>This section outlines the basic process for adding new packages to the
TL build system.
</p>
<p>In any case, a new package directory <samp>foo</samp> should contain the
original sources, modified only with changes necessary for TL, in
<samp>foo/foo-src</samp>. The changes should be documented in
<samp>foo/TLpatches/*</samp>, and also be submitted upstream whenever
reasonable.  In addition, <samp>foo/</samp> will need the usual Automake
build-related files (<samp>configure.ac</samp>, <samp>Makefile.am</samp>, etc.
Please maintain <samp>foo/ChangeLog</samp> for all TL changes.
</p>
<table class="menu" border="0" cellspacing="0">
<tr><td align="left" valign="top">&bull; <a href="#Adding-a-new-program-module" accesskey="1">Adding a new program module</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#Adding-a-new-generic-library-module" accesskey="2">Adding a new generic library module</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#Adding-a-new-TeX_002dspecific-library-module" accesskey="3">Adding a new TeX-specific library module</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
</table>


<hr>
<span id="Adding-a-new-program-module"></span><div class="header">
<p>
Next: <a href="#Adding-a-new-generic-library-module" accesskey="n" rel="next">Adding a new generic library module</a>, Up: <a href="#Extending-TeX-Live" accesskey="u" rel="up">Extending TeX&nbsp;Live</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="Adding-a-new-program-module-1"></span><h4 class="subsection">6.6.1 Adding a new program module</h4>

<span id="index-adding-a-new-program"></span>
<span id="index-program-module_002c-adding"></span>

<span id="index-kpse_005ftexk_005fpkgs"></span>
<p>A TeX-specific program module in a subdirectory
<samp>texk/<var>prog</var></samp> may use the TeX-specific libraries and is
included by adding its name <samp><var>prog</var></samp> to the M4 list
<code>kpse_texk_pkgs</code> defined in <samp>m4/kpse-pkgs.m4</samp>.
</p>
<span id="index-kpse_005futils_005fpkgs"></span>
<p>A generic program module in a subdirectory <samp>utils/<var>prog</var></samp>
must not use the TeX-specific libraries and is included by adding
its name <samp><var>prog</var></samp> to the M4 list <code>kpse_utils_pkgs</code> in
<samp>m4/kpse-pkgs.m4</samp>.
</p>
<span id="index-withenable_002eac_002c-for-new-modules"></span>
<span id="index-KPSE_005fENABLE_005fPROG"></span>
<p>In either case, the subdirectory <samp>texk/<var>prog</var></samp> or
<samp>utils/<var>prog</var></samp> must provide a fragment
<samp>ac/withenable.ac</samp> that contains the M4 macro
<code>KPSE_ENABLE_PROG</code> defined in <samp>m4/kpse-setup.m4</samp> with
<code><var>prog</var></code> as the mandatory first argument and three optional
arguments:
</p>
<ol>
<li> a list of required libraries from the TL tree;

</li><li> a list of options: <code>disable</code> if this module is not to be
built without the configure option <code>--enable-<var>prog</var></code>,
<code>native</code> if cross compilation is not possible, <code>x</code> if the
program requires X11 libraries;

</li><li> a comment added to the help text for the <code>configure</code>
option <code>--enable-<var>prog</var></code> or <code>--disable-<var>prog</var></code>.
</li></ol>

<p>If the module requires specific <code>configure</code> options to be seen at
the top level, they should be defined in an additional fragment
<samp>ac/<var>prog</var>.ac</samp> included from <samp>ac/withenable.ac</samp> and
<samp>configure.ac</samp>.
</p>
<p>Usually, the new program is maintained somewhere outside of TeX&nbsp;Live.  In
that case, as above, we put the upstream sources into a subdirectory
<samp><var>prog</var>-src</samp> (e.g., <samp>utils/newprog/newprog-src</samp>).  We do
not typically run <code>configure</code> in this original <code>...-src</code>
directory, but only in our own directory; but we do compile using the
source files in <code>...-src</code>.
</p>
<p>So, to summarize the files that we must (usually) create:
</p>
<dl compact="compact">
<dt><samp>ac/withenable.ac</samp></dt>
<dd><p>The <code>KPSE_ENABLE_PROG</code> call just explained.
</p>
</dd>
<dt><samp>configure.ac</samp></dt>
<dt><samp>Makefile.am</samp></dt>
<dd><p>By merging the contents of the original <samp>configure.ac</samp> (if
provided) and a comparable program already in TL.  There is no magic
recipe, it&rsquo;s necessary to think about needs to be done in the original
vs. in TeX&nbsp;Live.
</p>
</dd>
<dt><samp>TLpatches/TL-Changes</samp></dt>
<dd><p>Actions taken after getting the original source tree; typically
removal of derived or unused common files.
</p>
</dd>
<dt><samp>TLpatches/patch-...</samp></dt>
<dd><p>If any changes are needed to the original sources, record the patches
here so they can be applied next time. And send them upstream so that
perhaps they won&rsquo;t have to be.
</p>
</dd>
<dt><samp>ChangeLog</samp></dt>
<dd><p>Record all TL-specific changes, now and in the future.
</p>
</dd>
</dl>

<p>Then, run GNU <code>autoreconf</code> in the new directory (see <a href="#Build-system-tools">Build system tools</a>).  After that works, <code>svn add</code> the necessary files,
including the generated <samp>Makefile.in aclocal.m4 configure</samp>, and
<code>svn:ignore</code> the Automake cache <samp>autom4te.cache</samp>.  (This is
so people checking out the TL source tree do not have to run any
autotools, but can simply run <code>configure</code>.)
</p>
<p>Then, run the TL tool <code>reautoconf</code> in the top-level TL
<code>source/</code> directory, to incorporate the new program into the
build tree.
</p>
<p>Then, run (and rerun) a build until the program compiles and tests
successfully, probably involving rerunning autoreconf in the source
directory, <code>make</code> in the build directory, etc.
</p>
<p>After final success, don&rsquo;t forget to commit.
</p>

<hr>
<span id="Adding-a-new-generic-library-module"></span><div class="header">
<p>
Next: <a href="#Adding-a-new-TeX_002dspecific-library-module" accesskey="n" rel="next">Adding a new TeX-specific library module</a>, Previous: <a href="#Adding-a-new-program-module" accesskey="p" rel="prev">Adding a new program module</a>, Up: <a href="#Extending-TeX-Live" accesskey="u" rel="up">Extending TeX&nbsp;Live</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="Adding-a-new-generic-library-module-1"></span><h4 class="subsection">6.6.2 Adding a new generic library module</h4>

<span id="index-adding-a-new-generic-library"></span>
<span id="index-generic-library-module_002c-adding"></span>
<span id="index-library-module_002c-generic_002c-adding"></span>

<span id="index-kpse_005flibs_005fpkgs"></span>
<p>A generic library module in a subdirectory <samp>libs/<var>lib</var></samp> must
not depend on TeX-specific libraries, by definition.  It is
included by adding its name <samp><var>lib</var></samp> to the M4 macro
<code>kpse_libs_pkgs</code> in <samp>m4/kpse-pkgs.m4</samp>&mdash;before any other
libraries from the TeX&nbsp;Live tree on which it depends.
</p>
<span id="index-KPSE_005fWITH_005fLIB"></span>
<p>As with program modules, the subdirectory <samp>libs/<var>lib</var></samp> must
contain the sources and build system for the library (and any
installable support programs) and a fragment <samp>ac/withenable.ac</samp>
that contains the M4 macro <code>KPSE_WITH_LIB</code> defined in
<samp>m4/kpse-setup.m4</samp> with <code><var>lib</var></code> as the mandatory first
argument and two optional arguments: a list of required libraries from
the TL tree, and a list of options: for libraries, currently there is
only one&mdash;specify <code>tree</code> if this library cannot be replaced by a
system version.
</p>
<span id="index-KPSE_005fTRY_005fLIB-1"></span>
<span id="index-KPSE_005fTRY_005fLIBXX-1"></span>
<p>If a system version can be used, a second fragment
<samp>ac/<var>lib</var>.ac</samp> is needed, containing the M4 macro
<code>KPSE_TRY_LIB</code> (or <code>KPSE_TRY_LIBXX</code>) with <code><var>lib</var></code>
as the mandatory first argument and two additional arguments for the
Autoconf macro <code>AC_LANG_PROGRAM</code> used to compile and link a small
C (or C++) program as sanity check for using the system library.
</p>
<span id="index-KPSE_005fLIB_005fFLAGS-1"></span>
<p>In addition a file <samp>m4/kpse-<var>lib</var>-flags</samp> (at the top level)
must define the M4 macro <code>KPSE_<var>LIB</var>_FLAGS</code> (all uppercase)
setting up the <code>make</code> variables <code><var>LIB</var>_INCLUDES</code>,
<code><var>LIB</var>_LIBS</code>, <code><var>LIB</var>_DEPEND</code>, and
<code><var>LIB</var>_RULE</code> with the values required for <code>CPPFLAGS</code>,
<code>LDADD</code>, dependencies, and a (multi-line) <code>make</code> rule to
rebuild the library when necessary.  All of that is needed for the
library from the TL tree and, if supported, for a system version.
</p>
<span id="index-_002d_002dwith_002dsystem_002dlib"></span>
<span id="index-KPSE_005fLIB_005fSYSTEM_005fFLAGS"></span>
<span id="index-KPSE_005fALL_005fSYSTEM_005fFLAGS"></span>
<p>If a system library is allowed, <code>KPSE_<var>LIB</var>_FLAGS</code> also
provides the configure option <code>--with-system-<var>lib</var></code> and uses
the additional M4 macro <code>KPSE_<var>LIB</var>_SYSTEM_FLAGS</code> to generate
the <code>make</code> variables for a system library.  In addition, the
definition of the M4 macro <code>KPSE_ALL_SYSTEM_FLAGS</code> in
<samp>m4/kpse-pkgs.m4</samp> must be extended by the line:<br>&nbsp;&nbsp;&nbsp;<code>AC_REQUIRE([KPSE_<var>LIB</var>_SYSTEM_FLAGS])</code>
</p>

<hr>
<span id="Adding-a-new-TeX_002dspecific-library-module"></span><div class="header">
<p>
Previous: <a href="#Adding-a-new-generic-library-module" accesskey="p" rel="prev">Adding a new generic library module</a>, Up: <a href="#Extending-TeX-Live" accesskey="u" rel="up">Extending TeX&nbsp;Live</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="Adding-a-new-TeX_002dspecific-library-module-1"></span><h4 class="subsection">6.6.3 Adding a new TeX-specific library module</h4>

<span id="index-adding-a-new-TeX_002dspecific-library"></span>
<span id="index-TeX_002dspecific-library-module_002c-adding"></span>
<span id="index-library-module_002c-TeX_002dspecific_002c-adding"></span>

<p>A TeX-specific library module in a subdirectory
<samp>texk/<var>lib</var></samp> may depend on other TeX-specific libraries
but must not depend on any generic library from the TL tree.  It is
included in the same general ways as a generic library (see the
previous section), with these modifications:
</p>
<ul>
<li> <span id="index-kpse_005ftexlibs_005fpkgs"></span>
The library name <code><var>lib</var></code> is added to the M4 macro
<code>kpse_texlibs_pkgs</code>, which is also in <samp>m4/kpse-pkgs.m4</samp>.

</li><li> <span id="index-KPSE_005fWITH_005fTEXLIB"></span>
The fragment <code>ac/withenable.ac</code> must use <code>KPSE_WITH_TEXLIB</code>.
</li></ul>


<hr>
<span id="Configure-options"></span><div class="header">
<p>
Next: <a href="#Coding-conventions" accesskey="n" rel="next">Coding conventions</a>, Previous: <a href="#Layout-and-infrastructure" accesskey="p" rel="prev">Layout and infrastructure</a>, Up: <a href="#Top" accesskey="u" rel="up">Top</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="Configure-options-1"></span><h2 class="chapter">7 Configure options</h2>

<span id="index-configure-options"></span>

<p>Corresponding to the large number of program and library modules there
are a large number <code>configure</code> options, most of which are
described here.  The command<br>&nbsp;&nbsp;&nbsp;<code>configure --help</code><br>at the
top level gives an exhaustive list of all global options and a few
important module-specific ones, whereas, e.g.,<br>&nbsp;&nbsp;&nbsp;<code>texk/lcdf-typetools/configure --help</code><br> also displays the
<code>lcdf-typetools</code> specific options, which are not shown at the
top level.
</p>
<span id="index-environment-variables_002c-for-configure"></span>
<p>The help text also mentions several influential environment variables,
but for TeX&nbsp;Live it is better to specify them as assignments on the
command line.
</p>
<p>The <samp>./Build</samp> script used to make the binaries shipped with TeX&nbsp;Live
invokes the top-level <code>configure</code> with a few additional options
(see <a href="#Building">Building</a>).  The defaults discussed below are those for the
actual <code>configure</code> script; invoking <code>configure</code> via
<samp>./Build</samp> yields different results.
</p>
<p>Defaults for most options are set at the top level and propagated
explicitly to all subdirectories.  Options specified on the command
line are checked for consistency but never modified.
</p>
<table class="menu" border="0" cellspacing="0">
<tr><td align="left" valign="top">&bull; <a href="#Global-configure-options" accesskey="1">Global configure options</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#Program_002dspecific-configure-options" accesskey="2">Program-specific configure options</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#Library_002dspecific-configure-options" accesskey="3">Library-specific configure options</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#Variables-for-configure" accesskey="4">Variables for configure</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
</table>


<hr>
<span id="Global-configure-options"></span><div class="header">
<p>
Next: <a href="#Program_002dspecific-configure-options" accesskey="n" rel="next">Program-specific configure options</a>, Up: <a href="#Configure-options" accesskey="u" rel="up">Configure options</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="Global-configure-options-1"></span><h3 class="section">7.1 Global configure options</h3>

<span id="index-global-configure-options"></span>
<span id="index-configure-options_002c-global"></span>
<p>Here are the global configure options.
</p>
<table class="menu" border="0" cellspacing="0">
<tr><td align="left" valign="top">&bull; <a href="#g_t_002d_002ddisable_002dnative_002dtexlive_002dbuild" accesskey="1"><code>--disable-native-texlive-build</code></a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#g_t_002d_002dprefix-_002d_002dbindir-_2026" accesskey="2"><code>--prefix</code> <code>--bindir</code> &hellip;</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#g_t_002d_002ddisable_002dlargefile" accesskey="3"><code>--disable-largefile</code></a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#g_t_002d_002ddisable_002dmissing" accesskey="4"><code>--disable-missing</code></a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#g_t_002d_002denable_002dcompiler_002dwarnings_003dlevel" accesskey="5"><code>--enable-compiler-warnings=</code><var>level</var></a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#g_t_002d_002denable_002dcxx_002druntime_002dhack" accesskey="6"><code>--enable-cxx-runtime-hack</code></a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#g_t_002d_002denable_002dmaintainer_002dmode" accesskey="7"><code>--enable-maintainer-mode</code></a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#g_t_002d_002denable_002dmultiplatform" accesskey="8"><code>--enable-multiplatform</code></a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#g_t_002d_002denable_002dshared" accesskey="9"><code>--enable-shared</code></a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#g_t_002d_002denable_002dsilent_002drules"><code>--enable-silent-rules</code></a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#g_t_002d_002dwithout_002dln_002ds"><code>--without-ln-s</code></a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#g_t_002d_002dwithout_002dx"><code>--without-x</code></a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
</table>


<hr>
<span id="g_t_002d_002ddisable_002dnative_002dtexlive_002dbuild"></span><div class="header">
<p>
Next: <a href="#g_t_002d_002dprefix-_002d_002dbindir-_2026" accesskey="n" rel="next"><code>--prefix</code> <code>--bindir</code> &hellip;</a>, Up: <a href="#Global-configure-options" accesskey="u" rel="up">Global configure options</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="g_t_002d_002ddisable_002dnative_002dtexlive_002dbuild-1"></span><h4 class="subsection">7.1.1 <code>--disable-native-texlive-build</code></h4>

<span id="index-_002d_002ddisable_002dnative_002dtexlive_002dbuild"></span>
<p>If enabled (the default), build for a TL binary distribution as
shipped by the TeX user groups.  This requires GNU <code>make</code> and
implies <code>--enable-multiplatform</code> and
<code>--enable-cxx-runtime-hack</code> (unless they are explicitly disabled),
and enforces <code>--disable-shared</code>.
</p>
<p>If building TL for a GNU/Linux or other distribution, this should be
disabled and system versions of most libraries should be used
(see <a href="#Distro-builds">Distro builds</a>).
</p>
<span id="index-_002d_002denable_002dtexlive_002dbuild"></span>
<p>A related option, <code>--enable-texlive-build</code>, is automatically
passed to all subdirectories (and cannot be disabled).  Subdirectories
that can also be built independently from the TL tree (such as
<samp>utils/xindy</samp> and <samp>texk/dvipng</samp>) but cooperate with TL can
use this option to enable TL-specific adaptations, such as
installation paths.
</p>

<hr>
<span id="g_t_002d_002dprefix-_002d_002dbindir-_2026"></span><div class="header">
<p>
Next: <a href="#g_t_002d_002ddisable_002dlargefile" accesskey="n" rel="next"><code>--disable-largefile</code></a>, Previous: <a href="#g_t_002d_002ddisable_002dnative_002dtexlive_002dbuild" accesskey="p" rel="prev"><code>--disable-native-texlive-build</code></a>, Up: <a href="#Global-configure-options" accesskey="u" rel="up">Global configure options</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="g_t_002d_002dprefix_002c-_002d_002dbindir_002c-_2026"></span><h4 class="subsection">7.1.2 <code>--prefix</code>, <code>--bindir</code>, &hellip;</h4>

<span id="index-_002d_002dprefix-configure-option"></span>
<span id="index-_002d_002dbindir-configure-option"></span>
<p>These standard Autoconf options specify various installation
directories as usual.  For the complete list, see <a href="#Installation-directories">Installation directories</a>.
</p>
<span id="index-DESTDIR"></span>
<p>Also as usual, all values are prefixed by the value of <code>DESTDIR</code>,
if set, on the <code>make</code> command line (see <a href="https://www.gnu.org/software/automake/manual/automake.html#Staged-Installs">Installation in a temporary location</a> in <cite>GNU Automake</cite>).
</p>

<hr>
<span id="g_t_002d_002ddisable_002dlargefile"></span><div class="header">
<p>
Next: <a href="#g_t_002d_002ddisable_002dmissing" accesskey="n" rel="next"><code>--disable-missing</code></a>, Previous: <a href="#g_t_002d_002dprefix-_002d_002dbindir-_2026" accesskey="p" rel="prev"><code>--prefix</code> <code>--bindir</code> &hellip;</a>, Up: <a href="#Global-configure-options" accesskey="u" rel="up">Global configure options</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="g_t_002d_002ddisable_002dlargefile-1"></span><h4 class="subsection">7.1.3 <code>--disable-largefile</code></h4>

<span id="index-_002d_002ddisable_002dlargefile"></span>
<span id="index-large-file-support"></span>
<span id="index-LFS-_0028large-file-support_0029"></span>
<p>Omit large file support (LFS), which is needed on most 32-bit Unix
systems for files with 2GB or more.  Regardless of this option, the
size of <code>DVI</code> and <code>GF</code> files must always be <em>&lt;2</em>GB, due
to the file format specifications.
</p>
<span id="index-size-of-PDF-and-PS-files"></span>
<span id="index-PDF-files_002c-size-of"></span>
<span id="index-PostScript-files_002c-size-of"></span>
<p>With LFS, there is no fixed limit on the size of PDF files created by
<samp>pdftex</samp> or PostScript files created by <samp>dvips</samp>.  The size
of PDF images included by <samp>pdftex</samp> or <samp>luatex</samp> must, however,
be <em>&lt;2</em>GB when using <samp>poppler</samp> version&nbsp;0.22 or before
(even on 64-bit systems with LFS).
</p>

<hr>
<span id="g_t_002d_002ddisable_002dmissing"></span><div class="header">
<p>
Next: <a href="#g_t_002d_002denable_002dcompiler_002dwarnings_003dlevel" accesskey="n" rel="next"><code>--enable-compiler-warnings=</code><var>level</var></a>, Previous: <a href="#g_t_002d_002ddisable_002dlargefile" accesskey="p" rel="prev"><code>--disable-largefile</code></a>, Up: <a href="#Global-configure-options" accesskey="u" rel="up">Global configure options</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="g_t_002d_002ddisable_002dmissing-1"></span><h4 class="subsection">7.1.4 <code>--disable-missing</code></h4>

<span id="index-_002d_002ddisable_002dmissing"></span>
<p>Immediately terminate the build process if a requested program or feature
must be disabled, e.g., due to missing libraries.  This can help when
figuring out a specific (sub)set of modules to enable.
</p>

<hr>
<span id="g_t_002d_002denable_002dcompiler_002dwarnings_003dlevel"></span><div class="header">
<p>
Next: <a href="#g_t_002d_002denable_002dcxx_002druntime_002dhack" accesskey="n" rel="next"><code>--enable-cxx-runtime-hack</code></a>, Previous: <a href="#g_t_002d_002ddisable_002dmissing" accesskey="p" rel="prev"><code>--disable-missing</code></a>, Up: <a href="#Global-configure-options" accesskey="u" rel="up">Global configure options</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="g_t_002d_002denable_002dcompiler_002dwarnings_003dlevel-1"></span><h4 class="subsection">7.1.5 <code>--enable-compiler-warnings=</code><var>level</var></h4>

<span id="index-_002d_002denable_002dcompiler_002dwarnings_003dlevel"></span>
<p>Enable various levels of compiler warnings for C, C++, and/or
Objective&nbsp;C: the <var>level</var> value can be one of: <code>no min
yes max all</code>.  The default is <code>yes</code> in <code>maintainer-mode</code>
(see below) and <code>min</code> otherwise.  This option defines the
variables <code>WARNING_[OBJ]C[XX]FLAGS</code>, but these variables are not
consistently used in all library and program modules.  At present,
these warning flags assume options from the GNU compilers.
</p>

<hr>
<span id="g_t_002d_002denable_002dcxx_002druntime_002dhack"></span><div class="header">
<p>
Next: <a href="#g_t_002d_002denable_002dmaintainer_002dmode" accesskey="n" rel="next"><code>--enable-maintainer-mode</code></a>, Previous: <a href="#g_t_002d_002denable_002dcompiler_002dwarnings_003dlevel" accesskey="p" rel="prev"><code>--enable-compiler-warnings=</code><var>level</var></a>, Up: <a href="#Global-configure-options" accesskey="u" rel="up">Global configure options</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="g_t_002d_002denable_002dcxx_002druntime_002dhack-1"></span><h4 class="subsection">7.1.6 <code>--enable-cxx-runtime-hack</code></h4>

<p>If enabled (as it is for the native TL build), when using <code>g++</code>,
try to statically link with <code>libstdc++</code>, thus improving
portability of the resulting binary.  See <a href="#Macros-for-compilers">Macros for compilers</a>.
</p>

<hr>
<span id="g_t_002d_002denable_002dmaintainer_002dmode"></span><div class="header">
<p>
Next: <a href="#g_t_002d_002denable_002dmultiplatform" accesskey="n" rel="next"><code>--enable-multiplatform</code></a>, Previous: <a href="#g_t_002d_002denable_002dcxx_002druntime_002dhack" accesskey="p" rel="prev"><code>--enable-cxx-runtime-hack</code></a>, Up: <a href="#Global-configure-options" accesskey="u" rel="up">Global configure options</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="g_t_002d_002denable_002dmaintainer_002dmode-1"></span><h4 class="subsection">7.1.7 <code>--enable-maintainer-mode</code></h4>

<span id="index-_002d_002denable_002dmaintainer_002dmode-1"></span>
<p>Enable <samp>make</samp> rules and dependencies not useful (and sometimes
confusing) to the casual user.  This requires current versions of the
GNU build tools (see <a href="#Build-system-tools">Build system tools</a>), as it automatically
rebuilds infrastructure files as needed.  See <a href="https://www.gnu.org/software/automake/manual/automake.html#maintainer_002dmode"><code>missing</code> and <code>AM_MAINTAINER_MODE</code></a> in <cite>GNU Automake</cite>.
</p>

<hr>
<span id="g_t_002d_002denable_002dmultiplatform"></span><div class="header">
<p>
Next: <a href="#g_t_002d_002denable_002dshared" accesskey="n" rel="next"><code>--enable-shared</code></a>, Previous: <a href="#g_t_002d_002denable_002dmaintainer_002dmode" accesskey="p" rel="prev"><code>--enable-maintainer-mode</code></a>, Up: <a href="#Global-configure-options" accesskey="u" rel="up">Global configure options</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="g_t_002d_002denable_002dmultiplatform-1"></span><h4 class="subsection">7.1.8 <code>--enable-multiplatform</code></h4>

<span id="index-_002d_002denable_002dmultiplatform"></span>
<span id="index-exec_005fprefix"></span>
<span id="index-_002d_002dbindir-configure-option-1"></span>
<span id="index-_002d_002dlibdir-configure-option"></span>
<p>If enabled (as it is for the native TL build) and
<code>--bindir=<var>dir</var></code> or <code>--libdir=<var>dir</var></code> are not
specified, install executables and libraries in per-platform
subdirectories of <samp><var>eprefix</var>/bin</samp> and
<samp><var>eprefix</var>/lib</samp> where <var>eprefix</var> is the value given or
implied for <code>exec_prefix</code>.  In any case, the values for
<code>bindir</code> and <code>libdir</code> are automatically propagated to all
subdirectories.
</p>

<hr>
<span id="g_t_002d_002denable_002dshared"></span><div class="header">
<p>
Next: <a href="#g_t_002d_002denable_002dsilent_002drules" accesskey="n" rel="next"><code>--enable-silent-rules</code></a>, Previous: <a href="#g_t_002d_002denable_002dmultiplatform" accesskey="p" rel="prev"><code>--enable-multiplatform</code></a>, Up: <a href="#Global-configure-options" accesskey="u" rel="up">Global configure options</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="g_t_002d_002denable_002dshared-1"></span><h4 class="subsection">7.1.9 <code>--enable-shared</code></h4>

<span id="index-_002d_002denable_002dshared"></span>
<p>Build shared versions of the TeX-specific libraries such as
<samp>libkpathsea</samp>.  This is not allowed for a native TL build (i.e.,
<code>--disable-native-texlive-build</code> must also be specified).
</p>

<hr>
<span id="g_t_002d_002denable_002dsilent_002drules"></span><div class="header">
<p>
Next: <a href="#g_t_002d_002dwithout_002dln_002ds" accesskey="n" rel="next"><code>--without-ln-s</code></a>, Previous: <a href="#g_t_002d_002denable_002dshared" accesskey="p" rel="prev"><code>--enable-shared</code></a>, Up: <a href="#Global-configure-options" accesskey="u" rel="up">Global configure options</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="g_t_002d_002denable_002dsilent_002drules-1"></span><h4 class="subsection">7.1.10 <code>--enable-silent-rules</code></h4>

<span id="index-_002d_002denable_002dsilent_002drules"></span>
<span id="index-make-rules_002c-verbose-vs_002e-silent"></span>
<p>Enable the use of less verbose build rules.  When using GNU
<code>make</code> (or any <code>make</code> implementation supporting nested
variable expansions), you can specify <code>V=1</code> on the <code>make</code>
command line to get more verbosity, or <code>V=0</code> to get less,
regardless of this option.
</p>

<hr>
<span id="g_t_002d_002dwithout_002dln_002ds"></span><div class="header">
<p>
Next: <a href="#g_t_002d_002dwithout_002dx" accesskey="n" rel="next"><code>--without-x</code></a>, Previous: <a href="#g_t_002d_002denable_002dsilent_002drules" accesskey="p" rel="prev"><code>--enable-silent-rules</code></a>, Up: <a href="#Global-configure-options" accesskey="u" rel="up">Global configure options</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="g_t_002d_002dwithout_002dln_002ds-1"></span><h4 class="subsection">7.1.11 <code>--without-ln-s</code></h4>

<span id="index-_002d_002dwithout_002dln_002ds"></span>
<p>Required when using a system without a working <code>ln -s</code> to build
binaries for a Unix-like system.  However, <code>make install</code> will
not create anything useful, and might fail.
</p>

<hr>
<span id="g_t_002d_002dwithout_002dx"></span><div class="header">
<p>
Previous: <a href="#g_t_002d_002dwithout_002dln_002ds" accesskey="p" rel="prev"><code>--without-ln-s</code></a>, Up: <a href="#Global-configure-options" accesskey="u" rel="up">Global configure options</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="g_t_002d_002dwithout_002dx-1"></span><h4 class="subsection">7.1.12 <code>--without-x</code></h4>

<span id="index-_002d_002dwithout_002dx"></span>
<p>Disable all programs using the X Window System.
</p>

<hr>
<span id="Program_002dspecific-configure-options"></span><div class="header">
<p>
Next: <a href="#Library_002dspecific-configure-options" accesskey="n" rel="next">Library-specific configure options</a>, Previous: <a href="#Global-configure-options" accesskey="p" rel="prev">Global configure options</a>, Up: <a href="#Configure-options" accesskey="u" rel="up">Configure options</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="Program_002dspecific-configure-options-1"></span><h3 class="section">7.2 Program-specific configure options</h3>

<span id="index-program_002dspecific-configure-options"></span>
<span id="index-configure-options_002c-program_002dspecific"></span>
<p>Here are (some of) the program-specific <code>configure</code> options.
</p>
<table class="menu" border="0" cellspacing="0">
<tr><td align="left" valign="top">&bull; <a href="#g_t_002d_002denable_002dprog-_002d_002ddisable_002dprog" accesskey="1"><code>--enable-<var>prog</var></code> <code>--disable-<var>prog</var></code></a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#g_t_002d_002ddisable_002dall_002dpkgs" accesskey="2"><code>--disable-all-pkgs</code></a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#Configure-options-for-texk_002fweb2c" accesskey="3">Configure options for <samp>texk/web2c</samp></a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#Configure-options-for-texk_002fbibtex_002dx" accesskey="4">Configure options for <samp>texk/bibtex-x</samp></a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#Configure-options-for-texk_002fdvipdfm_002dx" accesskey="5">Configure options for <samp>texk/dvipdfm-x</samp></a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#Configure-options-for-texk_002fdvisvgm" accesskey="6">Configure options for <samp>texk/dvisvgm</samp></a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#Configure-options-for-texk_002ftexlive" accesskey="7">Configure options for <samp>texk/texlive</samp></a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#Configure-options-for-texk_002fxdvik" accesskey="8">Configure options for <samp>texk/xdvik</samp></a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#Configure-options-for-utils_002fxindy" accesskey="9">Configure options for <samp>utils/xindy</samp></a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
</table>


<hr>
<span id="g_t_002d_002denable_002dprog-_002d_002ddisable_002dprog"></span><div class="header">
<p>
Next: <a href="#g_t_002d_002ddisable_002dall_002dpkgs" accesskey="n" rel="next"><code>--disable-all-pkgs</code></a>, Up: <a href="#Program_002dspecific-configure-options" accesskey="u" rel="up">Program-specific configure options</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="g_t_002d_002denable_002dprog_002c-_002d_002ddisable_002dprog"></span><h4 class="subsection">7.2.1 <code>--enable-<var>prog</var></code>, <code>--disable-<var>prog</var></code></h4>

<span id="index-_002d_002denable_002dprog"></span>
<span id="index-_002d_002ddisable_002dprog"></span>
<p>Do or do not build and install the program(s) of module <code><var>prog</var></code>.
</p>

<hr>
<span id="g_t_002d_002ddisable_002dall_002dpkgs"></span><div class="header">
<p>
Next: <a href="#Configure-options-for-texk_002fweb2c" accesskey="n" rel="next">Configure options for <samp>texk/web2c</samp></a>, Previous: <a href="#g_t_002d_002denable_002dprog-_002d_002ddisable_002dprog" accesskey="p" rel="prev"><code>--enable-<var>prog</var></code> <code>--disable-<var>prog</var></code></a>, Up: <a href="#Program_002dspecific-configure-options" accesskey="u" rel="up">Program-specific configure options</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="g_t_002d_002ddisable_002dall_002dpkgs-1"></span><h4 class="subsection">7.2.2 <code>--disable-all-pkgs</code></h4>

<span id="index-_002d_002ddisable_002dall_002dpkgs"></span>
<p>Do not build any program modules by default&mdash;only those explicitly
enabled.  This is useful when one wants to work on only a single
program, which is specified with an additional <code>--enable</code> option,
e.g., <code>--enable-dvipdfm-x</code>.  It&rsquo;s still simplest to check out and
configure the whole source tree, but at least only the program you are
interested in, and its dependencies, are built.  See <a href="#Build-one-package">Build one package</a>.
</p>
<p>Without this option, all modules are built except those that are
explicitly disabled or specify <code>disable</code> in their
<samp>ac/withenable.ac</samp> fragment.
</p>

<hr>
<span id="Configure-options-for-texk_002fweb2c"></span><div class="header">
<p>
Next: <a href="#Configure-options-for-texk_002fbibtex_002dx" accesskey="n" rel="next">Configure options for <samp>texk/bibtex-x</samp></a>, Previous: <a href="#g_t_002d_002ddisable_002dall_002dpkgs" accesskey="p" rel="prev"><code>--disable-all-pkgs</code></a>, Up: <a href="#Program_002dspecific-configure-options" accesskey="u" rel="up">Program-specific configure options</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="Configure-options-for-texk_002fweb2c-1"></span><h4 class="subsection">7.2.3 Configure options for <samp>texk/web2c</samp></h4>

<span id="index-configure-options_002c-for-web2c"></span>

<span id="index-_002d_002dwith_002dbanner_002dadd_003dstr"></span>
<p><code>--with-banner-add=<var>str</var></code><br>Add <code><var>str</var></code> to the
default version string (which is &lsquo;<code>TeX Live <var>year</var></code>&rsquo; or
&lsquo;<code>Web2C <var>year</var></code>&rsquo;) appended to banner lines.  This is ignored
for a native TL build, but distro builds should specify, e.g.,
<code>/<var>SomeDistro</var></code>.
</p>
<span id="index-_002d_002dwith_002deditor_003dcmd"></span>
<p><code>--with-editor=<var>cmd</var></code><br>Specify the command
<code><var>cmd</var></code> to invoke from the <code>e</code> option of TeX and friends,
replacing the default <code>vi +%d '%s'</code> for Unix or <code>texworks
--position=%d &quot;%s&quot;</code> for Windows.
</p>
<span id="index-_002d_002dwith_002dfontconfig_002dincludes_003ddir"></span>
<span id="index-_002d_002dwith_002dfontconfig_002dlibdir_003ddir"></span>
<p><code>--with-fontconfig-includes=<var>dir</var></code>,
<code>--with-fontconfig-libdir=<var>dir</var></code><br>Building XeTeX on
non-Mac systems requires the <code>fontconfig</code> library headers and
code.  If one or both of these options are given, the required flags
are derived from them; otherwise, they are determined via
<samp>pkg-config</samp> (if present).
</p>
<span id="index-X-toolkit"></span>
<span id="index-libXt"></span>
<span id="index-Xlib"></span>
<p><code>--with-mf-x-toolkit</code><br>Use the X toolkit (<samp>libXt</samp>) for
Metafont (the default is to use the lowest-level <samp>Xlib</samp> support;
it seems this has the best chance of working across X installations
nowadays).
</p>
<span id="index-_002d_002ddisable_002ddump_002dshare"></span>
<span id="index-LittleEndian-architectures"></span>
<p><code>--disable-dump-share</code><br>Make the <code>fmt</code>/<code>base</code>
dump files architecture dependent (somewhat faster on LittleEndian
architectures).
</p>
<span id="index-_002d_002ddisable_002dipc"></span>
<span id="index-interprocess-communication"></span>
<p><code>--disable-ipc</code><br>Disable TeX&rsquo;s <code>--ipc</code> option.
</p>
<span id="index-_002d_002ddisable_002dmf_002dnowin"></span>
<span id="index-mf_002dnowin"></span>
<p><code>--disable-mf-nowin</code><br>Do not build a separate
non-graphically-capable Metafont (<samp>mf-nowin</samp>).
</p>
<span id="index-_002d_002ddisable_002dtex"></span>
<span id="index-_002d_002denable_002detex"></span>
<span id="index-web2c_002eac"></span>
<p><code>--disable-tex</code>, <code>--enable-etex</code>, &hellip;<br>Do not or
do build the various TeX, Metafont, and MetaPost engines (defaults are
defined in the fragment <samp>texk/web2c/ac/web2c.ac</samp>).
</p>
<span id="index-_002d_002ddisable_002dweb_002dprogs"></span>
<p><code>--disable-web-progs</code><br>Do not build the original WEB programs
<samp>bibtex</samp>, &hellip;, <samp>weave</samp>.  Useful if, e.g., you only want
to (re)build some engines.
</p>
<span id="index-_002d_002denable_002dauto_002dcore"></span>
<span id="index-preloaded-binaries"></span>
<p><code>--enable-auto-core</code><br>This option causes TeX and Metafont
to produce a core dump when a particular hacky filename is
encountered, for use in creating preloaded binaries.  This is rarely
done nowadays.
</p>
<span id="index-_002d_002denable_002dlibtool_002dhack"></span>
<span id="index-libtool_002c-hack-for-avoiding-excessive-linking"></span>
<span id="index-libfontconfig_002c-hack-for-avoiding-linking-dependencies"></span>
<span id="index-libexpat_002c-dependency-of-libfontconfig"></span>
<p><code>--enable-libtool-hack</code><br>
If enabled (which is the default for all platforms), prevents
<code>libtool</code> from linking explicitly with dependencies of
<samp>libfontconfig</samp> such as <samp>libexpat</samp>.
</p>
<span id="index-_002d_002denable_002d_002awin-for-Metafont-window-support"></span>
<p><code>--enable-*win</code><br>Include various types of non-X window
support for Metafont (EPSF output, <code>mftalk</code>, old graphics
terminals, &hellip;).
</p>
<span id="index-_002d_002denable_002dtex_002dsynctex"></span>
<span id="index-_002d_002ddisable_002detex_002dsynctex"></span>
<span id="index-synctex"></span>
<p><code>--enable-tex-synctex</code>, <code>--disable-etex-synctex</code>,
&hellip;<br>Build the TeX engines with or without <code>SyncTeX</code>
support; ignored for a native TeX&nbsp;Live build.  Defaults are defined in
<samp>texk/web2c/ac/web2c.ac</samp>.
</p>
<span id="index-_002d_002ddisable_002dsynctex"></span>
<span id="index-synctex-1"></span>
<p><code>--disable-synctex</code>
<br>Do not build the <code>SyncTeX</code> library and tool.
</p>

<hr>
<span id="Configure-options-for-texk_002fbibtex_002dx"></span><div class="header">
<p>
Next: <a href="#Configure-options-for-texk_002fdvipdfm_002dx" accesskey="n" rel="next">Configure options for <samp>texk/dvipdfm-x</samp></a>, Previous: <a href="#Configure-options-for-texk_002fweb2c" accesskey="p" rel="prev">Configure options for <samp>texk/web2c</samp></a>, Up: <a href="#Program_002dspecific-configure-options" accesskey="u" rel="up">Program-specific configure options</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="Configure-options-for-texk_002fbibtex_002dx-1"></span><h4 class="subsection">7.2.4 Configure options for <samp>texk/bibtex-x</samp></h4>

<span id="index-configure-options_002c-for-bibtex_002dx"></span>
<span id="index-bibtex8"></span>
<span id="index-bibtexu"></span>
<span id="index-bibtex_002dx"></span>
<p>The programs <code>bibtex8</code> and <code>bibtexu</code> have been merged into the
module <code>bibtex-x</code> (extended BibTeX).
</p>
<span id="index-_002d_002ddisable_002dbibtex8"></span>
<p><code>--disable-bibtex8</code><br>Do not build the <samp>bibtex8</samp> program.
</p>
<span id="index-_002d_002ddisable_002dbibtexu"></span>
<p><code>--disable-bibtexu</code><br>Do not build the <samp>bibtexu</samp> program
(building <samp>bibtexu</samp> requires <code>ICU</code> libraries).
</p>

<hr>
<span id="Configure-options-for-texk_002fdvipdfm_002dx"></span><div class="header">
<p>
Next: <a href="#Configure-options-for-texk_002fdvisvgm" accesskey="n" rel="next">Configure options for <samp>texk/dvisvgm</samp></a>, Previous: <a href="#Configure-options-for-texk_002fbibtex_002dx" accesskey="p" rel="prev">Configure options for <samp>texk/bibtex-x</samp></a>, Up: <a href="#Program_002dspecific-configure-options" accesskey="u" rel="up">Program-specific configure options</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="Configure-options-for-texk_002fdvipdfm_002dx-1"></span><h4 class="subsection">7.2.5 Configure options for <samp>texk/dvipdfm-x</samp></h4>

<span id="index-configure-options_002c-for-dvipdfm_002dx"></span>
<span id="index-dvipdfm_002dx"></span>
<span id="index-dvipdfmx"></span>
<span id="index-xdvipdfmx"></span>

<p>The former modules <code>dvipdfmx</code> (extended DVI to PDF converter) and
<code>xdvipdfmx</code> (the same, as used by XeTeX) have been merged into
<code>dvipdfm-x</code> at the source level.  Two separate binaries are still
created by default.  In addition, <samp>dvipdfm</samp> is created as a
symlink to <samp>dvipdfmx</samp>, with backward-compatible (very slightly
different) behavior.
</p>
<span id="index-_002d_002ddisable_002ddvipdfmx"></span>
<p><code>--disable-dvipdfmx</code><br>Do not build the <samp>dvipdfmx</samp>
program or make the <samp>dvipdfm</samp> symlink.
</p>
<span id="index-_002d_002ddisable_002dxdvipdfmx"></span>
<p><code>--disable-xdvipdfmx</code><br>Do not build the <samp>xdvipdfmx</samp>
program.
</p>

<hr>
<span id="Configure-options-for-texk_002fdvisvgm"></span><div class="header">
<p>
Next: <a href="#Configure-options-for-texk_002ftexlive" accesskey="n" rel="next">Configure options for <samp>texk/texlive</samp></a>, Previous: <a href="#Configure-options-for-texk_002fdvipdfm_002dx" accesskey="p" rel="prev">Configure options for <samp>texk/dvipdfm-x</samp></a>, Up: <a href="#Program_002dspecific-configure-options" accesskey="u" rel="up">Program-specific configure options</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="Configure-options-for-texk_002fdvisvgm-1"></span><h4 class="subsection">7.2.6 Configure options for <samp>texk/dvisvgm</samp></h4>

<span id="index-configure-options_002c-for-dvisvgm"></span>
<span id="index-dvisvgm"></span>

<span id="index-_002d_002dwith_002dsystem_002dlibgs"></span>
<p><code>--with-system-libgs</code><br>Build <samp>dvisvgm</samp> using installed
Ghostscript (<code>gs</code>) headers and library (not allowed for a native
TL build).  The default is to load the <code>gs</code> library at runtime if
possible, else to disable support for PostScript specials.
</p>
<span id="index-_002d_002dwithout_002dlibgs"></span>
<p><code>--without-libgs</code><br>Build <samp>dvisvgm</samp> without PostScript
support at all.  Because the dynamic loading just mentioned defeats all
attempts at static linking, the result can crash due to library
incompatibilities, e.g., on CentOS 5.
</p>
<span id="index-_002d_002dwith_002dlibgs_002dincludes_002c-_002dlibdir"></span>
<p><code>--with-libgs-includes=<var>dir</var></code>,
<code>--with-libgs-libdir=<var>dir</var></code><br>Specify non-standard locations
of the Ghostscript headers and library.
</p>

<hr>
<span id="Configure-options-for-texk_002ftexlive"></span><div class="header">
<p>
Next: <a href="#Configure-options-for-texk_002fxdvik" accesskey="n" rel="next">Configure options for <samp>texk/xdvik</samp></a>, Previous: <a href="#Configure-options-for-texk_002fdvisvgm" accesskey="p" rel="prev">Configure options for <samp>texk/dvisvgm</samp></a>, Up: <a href="#Program_002dspecific-configure-options" accesskey="u" rel="up">Program-specific configure options</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="Configure-options-for-texk_002ftexlive-1"></span><h4 class="subsection">7.2.7 Configure options for <samp>texk/texlive</samp></h4>

<span id="index-configure-options_002c-for-texk_002ftexlive"></span>
<span id="index-_002d_002ddisable_002dlinked_002dscripts"></span>
<p><code>--disable-linked-scripts</code><br>Do not install the &ldquo;linked
scripts&rdquo; (see <a href="#Linked-scripts">Linked scripts</a>), except for the TL scripts required
to run <code>texlinks</code>.
</p>

<hr>
<span id="Configure-options-for-texk_002fxdvik"></span><div class="header">
<p>
Next: <a href="#Configure-options-for-utils_002fxindy" accesskey="n" rel="next">Configure options for <samp>utils/xindy</samp></a>, Previous: <a href="#Configure-options-for-texk_002ftexlive" accesskey="p" rel="prev">Configure options for <samp>texk/texlive</samp></a>, Up: <a href="#Program_002dspecific-configure-options" accesskey="u" rel="up">Program-specific configure options</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="Configure-options-for-texk_002fxdvik-1"></span><h4 class="subsection">7.2.8 Configure options for <samp>texk/xdvik</samp></h4>

<span id="index-configure-options_002c-for-xdvik"></span>
<span id="index-xdvik-1"></span>

<span id="index-_002d_002dwith_002dgs_003dfilename"></span>
<span id="index-Ghostscript-location-for-Xdvik"></span>
<p><code>--with-gs=<var>filename</var></code><br>Hardwire the location of Ghostscript
(<samp>gs</samp>) as called by Xdvik.
</p>
<span id="index-_002d_002dwith_002dxdvi_002dx_002dtoolkit_003dkit"></span>
<span id="index-motif"></span>
<span id="index-xaw"></span>
<p><code>--with-xdvi-x-toolkit=<var>kit</var></code><br>Use toolkit
<code><var>kit</var></code> for <samp>xdvik</samp>, one of: <code>motif xaw xaw3d
neXtaw</code>.  The default is <code>motif</code> if available, else <code>xaw</code>.
</p>
<span id="index-_002d_002denable_002dxi2_002dscrolling"></span>
<span id="index-XInput"></span>
<span id="index-scrolling_002c-smooth"></span>
<p><code>--enable-xi2-scrolling</code><br>Use XInput 2.1 &ldquo;smooth scrolling&rdquo;
if available (default: yes, except for a native TL build).
</p>

<hr>
<span id="Configure-options-for-utils_002fxindy"></span><div class="header">
<p>
Previous: <a href="#Configure-options-for-texk_002fxdvik" accesskey="p" rel="prev">Configure options for <samp>texk/xdvik</samp></a>, Up: <a href="#Program_002dspecific-configure-options" accesskey="u" rel="up">Program-specific configure options</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="Configure-options-for-utils_002fxindy-1"></span><h4 class="subsection">7.2.9 Configure options for <samp>utils/xindy</samp></h4>

<span id="index-configure-options_002c-for-xindy"></span>
<span id="index-xindy-2"></span>

<span id="index-_002d_002denable_002dxindy_002drules"></span>
<p><code>--enable-xindy-rules</code><br>Build and install <code>xindy</code> rules
(default: yes, except for a native TL build).
</p>
<span id="index-_002d_002denable_002dxindy_002ddocs"></span>
<p><code>--enable-xindy-docs</code><br>Build and install <code>xindy</code>
documentation (default: yes, except for a native TL build).
</p>
<span id="index-_002d_002dwith_002dclisp_002druntime_003dfilename"></span>
<span id="index-lisp_002erun_002c-lisp_002eexe"></span>
<span id="index-CLISP"></span>
<p><code>--with-clisp-runtime=<var>filename</var></code><br>Specifies the
full path for the Clisp runtime file (<samp>lisp.run</samp> or
<samp>lisp.exe</samp>) to be installed.  When specified as <code>default</code>
(the default for a native TL build) the path is determined by the
Clisp executable; the value <code>system</code> (not allowed for a native TL
build, but the default otherwise) indicates that <samp>xindy</samp> will use
the installed version of <samp>clisp</samp> (which must be identical to the
one used to build <samp>xindy</samp>).
</p>

<hr>
<span id="Library_002dspecific-configure-options"></span><div class="header">
<p>
Next: <a href="#Variables-for-configure" accesskey="n" rel="next">Variables for configure</a>, Previous: <a href="#Program_002dspecific-configure-options" accesskey="p" rel="prev">Program-specific configure options</a>, Up: <a href="#Configure-options" accesskey="u" rel="up">Configure options</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="Library_002dspecific-configure-options-1"></span><h3 class="section">7.3 Library-specific configure options</h3>

<span id="index-library_002dspecific-configure-options"></span>
<span id="index-configure-options_002c-library_002dspecific"></span>
<p>Here are (some of) the library-specific <code>configure</code> options,
starting with this generic one:
</p>
<span id="index-_002d_002dwith_002dsystem_002dlib-1"></span>
<p><code>--with-system-<var>lib</var></code>
</p>
<p>Use an installed (system) version of the library <code><var>lib</var></code>;
this option exists for most libraries, but is not allowed for a native
TL build.  Using a system version implies also using the system
versions of all libraries that <var>lib</var> depends on.
</p>
<span id="index-_002d_002dwith_002dlib_002dincludes_003ddir_002c-_002dlibdir"></span>
<p>For many libraries <code>--with-<var>lib</var>-includes=<var>dir</var></code> and
<code>--with-<var>lib</var>-libdir=<var>dir</var></code> can specify non-standard
search locations; others use <samp>pkg-config</samp> or similar to determine
the required flags.
</p>
<p>The top-level <samp>configure</samp> script performs a consistency check for all
required system libraries and bails out if tests fail.
</p>
<table class="menu" border="0" cellspacing="0">
<tr><td align="left" valign="top">&bull; <a href="#Configure-options-for-kpathsea" accesskey="1">Configure options for <code>kpathsea</code></a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#Configure-options-for-system-poppler" accesskey="2">Configure options for system <code>poppler</code></a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
</table>


<hr>
<span id="Configure-options-for-kpathsea"></span><div class="header">
<p>
Next: <a href="#Configure-options-for-system-poppler" accesskey="n" rel="next">Configure options for system <code>poppler</code></a>, Up: <a href="#Library_002dspecific-configure-options" accesskey="u" rel="up">Library-specific configure options</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="Configure-options-for-kpathsea-1"></span><h4 class="subsection">7.3.1 Configure options for <code>kpathsea</code></h4>

<span id="index-configure-options_002c-for-kpathsea"></span>

<p><code>--enable-<var>cmd</var>-default</code>,
<code>--disable-<var>cmd</var>-default</code><br>Determine the compile time default
for whether or not to run <var>cmd</var>, which is one of:
</p><dl compact="compact">
<dt><code>mkocp</code></dt>
<dd><p>(Omega compiled translation process file)
</p></dd>
<dt><code>mkofm</code></dt>
<dd><p>(Omega font metrics file)
</p></dd>
<dt><code>mktexfmt</code></dt>
<dd><p>(format/base dump file)
</p></dd>
<dt><code>mktexmf</code></dt>
<dd><p>(Metafont source)
</p></dd>
<dt><code>mktexpk</code></dt>
<dd><p>(PK bitmap font)
</p></dd>
<dt><code>mktextex</code></dt>
<dd><p>(TeX source)
</p></dd>
<dt><code>mktextfm</code></dt>
<dd><p>(TFM file)
</p></dd>
</dl>

<p>to generate the specified type of file dynamically.
The default can be overridden by the user in any case
(see <a href="#kpathsea-library"><code>kpathsea</code> library</a>).
</p>
<hr>
<span id="Configure-options-for-system-poppler"></span><div class="header">
<p>
Previous: <a href="#Configure-options-for-kpathsea" accesskey="p" rel="prev">Configure options for <code>kpathsea</code></a>, Up: <a href="#Library_002dspecific-configure-options" accesskey="u" rel="up">Library-specific configure options</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="Configure-options-for-system-poppler-1"></span><h4 class="subsection">7.3.2 Configure options for system <code>poppler</code></h4>

<span id="index-configure-options_002c-for-system-poppler"></span>

<span id="index-poppler"></span>
<span id="index-xpdf-as-library"></span>
<p>Building XeTeX requires <code>poppler</code>, either from the TL tree or
system headers and library.  Building pdfTeX requires either
<code>xpdf</code> from the TeX&nbsp;Live tree or system <code>poppler</code> headers and
library.
</p>
<span id="index-_002d_002dwith_002dsystem_002dpoppler"></span>
<p><code>--with-system-poppler</code><br>Use a system version (0.18 or
newer) of <code>poppler</code> for LuaTeX (or LuaJITTeX) and XeTeX,
and use <samp>pkg-config</samp> to obtain the required flags.
</p>
<span id="index-_002d_002dwith_002dsystem_002dxpdf"></span>
<p><code>--with-system-xpdf</code><br>Use a system version (0.12 or newer)
of <code>poppler</code> (and <samp>pkg-config</samp>) for pdfTeX instead of
<code>xpdf</code> from the TL tree.  See <a href="#g_t_002d_002ddisable_002dlargefile"><code>--disable-largefile</code></a>.
</p>
<hr>
<span id="Variables-for-configure"></span><div class="header">
<p>
Previous: <a href="#Library_002dspecific-configure-options" accesskey="p" rel="prev">Library-specific configure options</a>, Up: <a href="#Configure-options" accesskey="u" rel="up">Configure options</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="Variables-for-configure-1"></span><h3 class="section">7.4 Variables for configure</h3>

<span id="index-variables-for-configure"></span>
<span id="index-configure-variables"></span>

<p>The values for these variables can be specified as <code>configure</code>
arguments of the form <code><var>VAR</var>=<var>value</var></code>.  They can also be
defined in the environment, but that might not work for cross
compilations.
</p>
<dl compact="compact">
<dt><code>CC</code>
<span id="index-CC"></span>
</dt>
<dt><code>CXX</code>
<span id="index-CXX"></span>
</dt>
<dt><code>CPPFLAGS</code>
<span id="index-CPPFLAGS"></span>
</dt>
<dd><p>And plenty more.  As usual with Autoconf, these variables specify the
name (or full path) of compilers, preprocessor flags, and similar.
See <a href="https://www.gnu.org/software/autoconf/manual/autoconf.html#Preset-Output-Variables">Preset Output Variables</a> in <cite>GNU Autoconf</cite>.
</p>
</dd>
<dt><code>CLISP</code>
<span id="index-CLISP-1"></span>
</dt>
<dd><span id="index-clisp"></span>
<p>Name (or full path) of the <samp>clisp</samp> executable, used to build
<code>xindy</code>.
</p>
</dd>
<dt><code>FT2_CONFIG</code>
<span id="index-FT2_005fCONFIG"></span>
</dt>
<dt><code>ICU_CONFIG</code>
<span id="index-ICU_005fCONFIG"></span>
</dt>
<dt><code>PKG_CONFIG</code>
<span id="index-PKG_005fCONFIG"></span>
</dt>
<dd><span id="index-freetype_002dconfig-1"></span>
<span id="index-icu_002dconfig"></span>
<span id="index-libfreetype"></span>
<span id="index-ICU-libraries"></span>
<p>These specify the name (or path) for the <samp>freetype-config</samp>,
<samp>icu-config</samp>, and <samp>pkg-config</samp> commands used to determine the
flags required for system versions of <samp>libfreetype</samp>, the ICU
libraries, and other libraries, respectively.
</p>
</dd>
<dt><code>KPSEWHICH</code>
<span id="index-KPSEWHICH"></span>
</dt>
<dd><span id="index-kpsewhich"></span>
<p>Name (or path) of an installed <samp>kpsewhich</samp> binary, used by
<code>make check</code> to determine the location of, e.g.,
<samp>cmbx10.tfm</samp>.
</p>
</dd>
<dt><code>MAKE</code>
<span id="index-MAKE"></span>
</dt>
<dt><code>SED</code>
<span id="index-SED"></span>
</dt>
<dd><p>And more. Name (or path) of the <code>make</code>, <code>sed</code>, and similar
programs; used at the top level and propagated to all subdirectories.
</p>
</dd>
<dt><code>PERL</code>
<span id="index-PERL"></span>
</dt>
<dt><code>LATEX</code>
<span id="index-LATEX"></span>
</dt>
<dt><code>PDFLATEX</code>
<span id="index-PDFLATEX"></span>
</dt>
<dd><p>Name (or full path) for the <samp>perl</samp>, <samp>latex</samp>, and <samp>pdflatex</samp>
commands used, e.g., to build the <code>xindy</code> documentation.
</p>
</dd>
</dl>


<hr>
<span id="Coding-conventions"></span><div class="header">
<p>
Next: <a href="#Continuous-integration" accesskey="n" rel="next">Continuous integration</a>, Previous: <a href="#Configure-options" accesskey="p" rel="prev">Configure options</a>, Up: <a href="#Top" accesskey="u" rel="up">Top</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="Coding-conventions-1"></span><h2 class="chapter">8 Coding conventions</h2>

<span id="index-coding-conventions"></span>
<span id="index-conventions_002c-coding"></span>

<p>Ideally, building all of TeX&nbsp;Live with
<code>--enable-compiler-warnings=max</code> should produce no (GCC) compiler
warnings at all.  In spite of considerable efforts into that direction
we are still far from that goal and there are reasons that we may
never fully reach it.  Below are some rules about declarations of
functions or variables and the use of <code>const</code>.  These rules
should be applied to the code maintained in the TeX&nbsp;Live tree and for
other packages whose maintainers are willing to accept patches.
</p>
<table class="menu" border="0" cellspacing="0">
<tr><td align="left" valign="top">&bull; <a href="#Declarations-and-definitions" accesskey="1">Declarations and definitions</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#Const" accesskey="2">Const</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
</table>


<hr>
<span id="Declarations-and-definitions"></span><div class="header">
<p>
Next: <a href="#Const" accesskey="n" rel="next">Const</a>, Up: <a href="#Coding-conventions" accesskey="u" rel="up">Coding conventions</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="Declarations-and-definitions-1"></span><h3 class="section">8.1 Declarations and definitions</h3>

<span id="index-declarations-and-definitions_002c-in-source-code"></span>
<span id="index-source-code-declarations"></span>
<span id="index-ANSI-C"></span>
<span id="index-declarations-before-statements_002c-avoiding"></span>
<span id="index-C_002c-ANSI_002c-required"></span>
<span id="index-C99_002c-avoided"></span>

<span id="C-standards"></span><h4 class="subsubheading">C standards</h4>

<p>The TeX&nbsp;Live build system no longer supports pre-ANSI C compilers.  Thus
all function prototypes and definitions must conform to the ANSI C
standard (including <code>void</code> in the declaration of C functions with
no parameters).  On the other hand, TL is built for a wide variety of
systems, not all of which support the C99 standard.  Therefore using
C99 features should be avoided if that can easily be done.  In
particular, C code must not contain declarations after statements or
C++-style comments.
</p>
<span id="index-chktex"></span>
<span id="index-stpcpy"></span>
<p>If some C99 (or later) constructs must be used, the module should
verify that they are available and otherwise provide an alternative.
For example, the module <samp>texk/chktex</samp> uses the C99 function
<code>stpcpy()</code> that may or may not be available on a particular
system.  It uses <code>AC_CHECK_DECLS([stpcpy])</code> in
<samp>configure.ac</samp> to test this, and provides a perhaps
less efficient alternative (in the file <samp>Utility.h</samp>):
</p>
<div class="example">
<pre class="example">#if !(defined HAVE_DECL_STPCPY &amp;&amp; HAVE_DECL_STPCPY)
static inline char *stpcpy(char *dest, const char *src)
{
  return strcpy(dest, src) + strlen(src);
}
#endif
</pre></div>

<span id="Static-functions"></span><h4 class="subsubheading">Static functions</h4>

<span id="index-static-functions"></span>
<p>Functions used in only one file should be declared <code>static</code>; they
require no prototype except in forward declarations.
</p>
<span id="Extern-functions"></span><h4 class="subsubheading">Extern functions</h4>

<span id="index-extern-functions"></span>
<p>Functions not declared <code>static</code>, usually because they are used in
several files, require an (<code>extern</code>) prototype in exactly one
header file, which is included in the file defining the function and
in all files using that function&mdash;this is the only way to guarantee
consistency between definition and use.  There should be no
<code>extern</code> declarations sprinkled throughout the C code (with or
without comments as to where that function is defined).
</p>
<span id="Variable-declarations"></span><h4 class="subsubheading">Variable declarations</h4>

<span id="index-variable-declarations_002c-in-source-code"></span>
<p>The declaration of global variables follows analogous rules: they are
either declared <code>static</code> if used in only one file or declared
<code>extern</code> in exactly one header and instantiated in exactly one
file.
</p>
<hr>
<span id="Const"></span><div class="header">
<p>
Previous: <a href="#Declarations-and-definitions" accesskey="p" rel="prev">Declarations and definitions</a>, Up: <a href="#Coding-conventions" accesskey="u" rel="up">Coding conventions</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="Const-1"></span><h3 class="section">8.2 Const</h3>

<span id="index-const"></span>

<p>The <code>const</code> feature of C is valuable, but easy to mis-use.
</p>
<span id="Function-parameters"></span><h4 class="subsubheading">Function parameters</h4>

<p>Ideally, a function parameter not modified by the function should be
declared as <code>const</code>.  This is important in particular for strings
(<code>char*</code>) because the actual arguments are often string literals.
It is perfectly legitimate and safe to use a type <code>char*</code> value
for a type <code>const char*</code> variable (in an assignment, as
initializer, as function argument, or as return value).  It is equally
safe to use a type <code>char**</code> value for a type <code>const
char*const*</code> variable, but not for a type <code>const char**</code> variable
since that might cause modification of a quantity supposed to be
constant.
</p>
<span id="index-X11-headers_002c-and-const"></span>
<span id="index-libfreetype_002c-and-const"></span>
<p>Getting all <code>const</code> qualifiers right can get quite involved but
can almost always be done.  There are only a couple notable
exceptions: the X11 headers are full of declarations that ought to use
<code>const</code> but do not; at one time, <samp>libfreetype</samp> also did not
fully specify <code>const</code>, but this has not been checked recently.
</p>
<span id="What-must-be-avoided-with-const"></span><h4 class="subsubheading">What must be avoided with <code>const</code></h4>

<span id="index-warning_002c-discards-qualifiers"></span>
<span id="index-discards-qualifiers-warning"></span>
<p>The GCC compiler warnings &ldquo;assignment discards qualifiers&hellip;&rdquo;
and analogous warnings for &ldquo;initialization&rdquo;, &ldquo;passing arg&rdquo;, or
&ldquo;return&rdquo; must be strenuously avoided in our own code.  The only
exception is when they are caused by X11 declarations or other third
party code.
</p>
<span id="What-should-be-avoided-with-const"></span><h4 class="subsubheading">What should be avoided with <code>const</code></h4>

<span id="index-type-cast-from-const_002c-avoiding"></span>
<p>A type cast, e.g., from <code>const char*</code> to <code>char*</code> does not
solve any problems; depending on warning options, it may only hide
them.  Therefore such casts should be avoided whenever possible and
otherwise must be carefully analyzed to make sure that they cannot
cause the modification of quantities supposed to be constant.
</p>

<hr>
<span id="Continuous-integration"></span><div class="header">
<p>
Next: <a href="#install_002dtl" accesskey="n" rel="next">install-tl</a>, Previous: <a href="#Coding-conventions" accesskey="p" rel="prev">Coding conventions</a>, Up: <a href="#Top" accesskey="u" rel="up">Top</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="Continuous-integration-1"></span><h2 class="chapter">9 Continuous integration</h2>

<span id="index-continuous-integration"></span>
<span id="index-Travis_002dCI"></span>

<p>The TeX&nbsp;Live sources are subjected to continuous integration testing on
Travis-CI (<a href="https://travis-ci.org/TeX-Live/texlive-source">https://travis-ci.org/TeX-Live/texlive-source</a>) via a
git-svn mirror of the sources that is pushed to Github
(<a href="https://github.com/TeX-Live/texlive-source">https://github.com/TeX-Live/texlive-source</a>). The git-svn mirror
is updated (currently) at 30 minute intervals, and only the last
commit pushed is tested on Travis-CI.
</p>
<table class="menu" border="0" cellspacing="0">
<tr><td align="left" valign="top">&bull; <a href="#Transfer-from-Subversion-to-Github" accesskey="1">Transfer from Subversion to Github</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#Automatic-update-of-the-Git-mirror" accesskey="2">Automatic update of the Git mirror</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#CI-testing-on-Travis_002dCI" accesskey="3">CI testing on Travis-CI</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#Releases-on-Github" accesskey="4">Releases on Github</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
</table>


<hr>
<span id="Transfer-from-Subversion-to-Github"></span><div class="header">
<p>
Next: <a href="#Automatic-update-of-the-Git-mirror" accesskey="n" rel="next">Automatic update of the Git mirror</a>, Up: <a href="#Continuous-integration" accesskey="u" rel="up">Continuous integration</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="Transfer-from-Subversion-to-Github-1"></span><h3 class="section">9.1 Transfer from Subversion to Github</h3>

<span id="index-git_002dsvn"></span>
<p>The git-svn program (<a href="https://git-scm.com/docs/git-svn">https://git-scm.com/docs/git-svn</a>) is used
to check out the subtree <code>Build/source</code> of the canonical
Subversion repository.  The author index file used is not maintained
in either Git or Subversion but can be provided on request.
</p>

<p>The initial checkout was done by invoking
</p><div class="example">
<pre class="example">git svn --authors-file usermap clone \
  svn://<var>user</var>@tug.org/texlive/trunk/Build/source
</pre></div>

<p>where the <code>usermap</code> file maps Subversion user names to
name and emails of the authors.  Anonymous checkout is also possible:
</p><div class="example">
<pre class="example">git svn --authors-file usermap clone \
  svn://tug.org/texlive/trunk/Build/source
</pre></div>

<p>In the following, we will use <em>admin</em> to refer to a user who has
read/write access to the TeX&nbsp;Live subversion repository, and is also an
administrator of the &lsquo;<code>TeX-Live</code>&rsquo; team at Github. The above
initial checkout has been carried out by <em>admin</em> on the server
<code>texlive.info</code>.
</p>
<p>On Github, a new git repository named <code>texlive-source</code> was
created by <em>admin</em> within the <code>TeX-Live</code> &ldquo;organization&rdquo;
(<a href="https://github.com/TeX-Live">https://github.com/TeX-Live</a>).  The remote was added to the
checkout with <code>git remote add origin
git@github.com:TeX-Live/texlive-source.git</code>.
</p>
<p>To automate the update on Github, a new ssh key was generated and
added to the <code>texlive-source</code> repository on Github as deployment
key. Thus, pushes using this key can only go to the
<code>texlive-source</code> repository and not anywhere else.
</p>
<p>The usage of <code>git-svn</code> requires a strict discipline to keep a
linear history in the master branch. Since we are aiming at a pure
mirror facility on Github, we have decided to further restrict the
<code>master</code> branch of the <code>texlive-source</code> repository on Github
to changes by <em>admin</em>.
</p>
<p>This setup allows other developers to branch off <code>master</code> and
push their branches to the Github repository, but all updates need to
come from the local <code>master</code> (not the one on Github) to
Subversion, back to <code>master</code> on <code>texlive.info</code>, and from
there to Github.
</p>
<hr>
<span id="Automatic-update-of-the-Git-mirror"></span><div class="header">
<p>
Next: <a href="#CI-testing-on-Travis_002dCI" accesskey="n" rel="next">CI testing on Travis-CI</a>, Previous: <a href="#Transfer-from-Subversion-to-Github" accesskey="p" rel="prev">Transfer from Subversion to Github</a>, Up: <a href="#Continuous-integration" accesskey="u" rel="up">Continuous integration</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="Automatic-update-of-the-Git-mirror-1"></span><h3 class="section">9.2 Automatic update of the Git mirror</h3>

<p><em>admin</em> has installed a cron job on <code>texlive.info</code> running
every 30 minute which essentially runs <code>git svn rebase</code> and
<code>git push</code> in the <code>master</code> branch of the checkout. The first
command fetches the changes from the Subversion repository and updates
the <code>master</code> branch with them, and the second pushes changes (if
any) to Github.
</p>
<hr>
<span id="CI-testing-on-Travis_002dCI"></span><div class="header">
<p>
Next: <a href="#Releases-on-Github" accesskey="n" rel="next">Releases on Github</a>, Previous: <a href="#Automatic-update-of-the-Git-mirror" accesskey="p" rel="prev">Automatic update of the Git mirror</a>, Up: <a href="#Continuous-integration" accesskey="u" rel="up">Continuous integration</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="CI-testing-on-Travis_002dCI-1"></span><h3 class="section">9.3 CI testing on Travis-CI</h3>

<span id="index-travis_002eyml"></span>
<p>The <code>source</code> tree of TeX&nbsp;Live contains a top-level file
<code>.travis.yml</code> which controls the automatic testing on
Travis-CI. <em>admin</em> has registered with Travis-CI and allowed
access to the Github&rsquo;s <code>TeX-Live</code> organization&rsquo;s
<code>texlive-source</code> repository. The default settings are to build
the last commit of each push. No further action is necessary on
Travis-CI.
</p>
<p>If changes have been pushed via the cron job above, Travis-CI will
automatically checkout the last pushed commit and try building it.
</p>
<hr>
<span id="Releases-on-Github"></span><div class="header">
<p>
Previous: <a href="#CI-testing-on-Travis_002dCI" accesskey="p" rel="prev">CI testing on Travis-CI</a>, Up: <a href="#Continuous-integration" accesskey="u" rel="up">Continuous integration</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="Releases-on-Github-1"></span><h3 class="section">9.4 Releases on Github</h3>

<p>Given a git checkout of <code>texlive-source</code>:
</p>
<div class="example">
<pre class="example">git pull
git tag build-svnNNNN
git push --tags
</pre></div>

<p>and the result will appear at
<a href="https://github.com/TeX-Live/texlive-source/releases">https://github.com/TeX-Live/texlive-source/releases</a>.
Releases can also be made manually from that web page (see
<code>tl-update-bindir</code> for hints).
</p>
<hr>
<span id="install_002dtl"></span><div class="header">
<p>
Next: <a href="#tlmgr" accesskey="n" rel="next">tlmgr</a>, Previous: <a href="#Continuous-integration" accesskey="p" rel="prev">Continuous integration</a>, Up: <a href="#Top" accesskey="u" rel="up">Top</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="install_002dtl-1"></span><h2 class="appendix">Appendix A install-tl</h2>

<table class="menu" border="0" cellspacing="0">
<tr><td align="left" valign="top">&bull; <a href="#install_002dtl-NAME" accesskey="1">install-tl NAME</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#install_002dtl-SYNOPSIS" accesskey="2">install-tl SYNOPSIS</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#install_002dtl-DESCRIPTION" accesskey="3">install-tl DESCRIPTION</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#install_002dtl-REFERENCES" accesskey="4">install-tl REFERENCES</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#install_002dtl-OPTIONS" accesskey="5">install-tl OPTIONS</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#install_002dtl-PROFILES" accesskey="6">install-tl PROFILES</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#install_002dtl-ENVIRONMENT-VARIABLES" accesskey="7">install-tl ENVIRONMENT VARIABLES</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#install_002dtl-AUTHORS-AND-COPYRIGHT" accesskey="8">install-tl AUTHORS AND COPYRIGHT</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
</table>

<hr>
<span id="install_002dtl-NAME"></span><div class="header">
<p>
Next: <a href="#install_002dtl-SYNOPSIS" accesskey="n" rel="next">install-tl SYNOPSIS</a>, Up: <a href="#install_002dtl" accesskey="u" rel="up">install-tl</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="NAME"></span><h3 class="appendixsec">A.1 NAME</h3>

<p>install-tl - TeX Live cross-platform installer
</p>
<hr>
<span id="install_002dtl-SYNOPSIS"></span><div class="header">
<p>
Next: <a href="#install_002dtl-DESCRIPTION" accesskey="n" rel="next">install-tl DESCRIPTION</a>, Previous: <a href="#install_002dtl-NAME" accesskey="p" rel="prev">install-tl NAME</a>, Up: <a href="#install_002dtl" accesskey="u" rel="up">install-tl</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="SYNOPSIS"></span><h3 class="appendixsec">A.2 SYNOPSIS</h3>

<p>install-tl [<em>option</em>]...
</p>
<p>install-tl-windows.bat [<em>option</em>]...
</p>
<p>install-tl-advanced.bat [<em>option</em>]...
</p>
<hr>
<span id="install_002dtl-DESCRIPTION"></span><div class="header">
<p>
Next: <a href="#install_002dtl-REFERENCES" accesskey="n" rel="next">install-tl REFERENCES</a>, Previous: <a href="#install_002dtl-SYNOPSIS" accesskey="p" rel="prev">install-tl SYNOPSIS</a>, Up: <a href="#install_002dtl" accesskey="u" rel="up">install-tl</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="DESCRIPTION"></span><h3 class="appendixsec">A.3 DESCRIPTION</h3>

<p>This installer creates a runnable TeX Live installation from various
media, including over the network, from local hard disk, a DVD, etc. The
installer works on all platforms supported by TeX Live. For information
on initially downloading TeX Live, see
<a href="https://tug.org/texlive/acquire.html">https://tug.org/texlive/acquire.html</a>.
</p>
<p>The basic idea of TeX Live installation is for you to choose one of the
top-level <em>schemes</em>, each of which is defined as a different set of
<em>collections</em> and <em>packages</em>, where a collection is a set of packages,
and a package is what contains actual files.
</p>
<p>Within the installer, you can choose a scheme, and further customize the
set of collections to install, but not the set of the packages.  To work
at the package level, use <code>tlmgr</code> (reference just below) after the
initial installation is complete.
</p>
<p>The default is <code>scheme-full</code>, which installs everything, and this is
highly recommended.
</p>
<hr>
<span id="install_002dtl-REFERENCES"></span><div class="header">
<p>
Next: <a href="#install_002dtl-OPTIONS" accesskey="n" rel="next">install-tl OPTIONS</a>, Previous: <a href="#install_002dtl-DESCRIPTION" accesskey="p" rel="prev">install-tl DESCRIPTION</a>, Up: <a href="#install_002dtl" accesskey="u" rel="up">install-tl</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="REFERENCES"></span><h3 class="appendixsec">A.4 REFERENCES</h3>

<p>Post-installation configuration, package updates, and more, are
handled through <strong>tlmgr</strong>(1), the TeX Live Manager
(<a href="https://tug.org/texlive/tlmgr.html">https://tug.org/texlive/tlmgr.html</a>).
</p>
<p>The most up-to-date version of this installer documentation is on the
Internet at <a href="https://tug.org/texlive/doc/install-tl.html">https://tug.org/texlive/doc/install-tl.html</a>.
</p>
<p>For the full documentation of TeX Live, see
<a href="https://tug.org/texlive/doc">https://tug.org/texlive/doc</a>.
</p>
<hr>
<span id="install_002dtl-OPTIONS"></span><div class="header">
<p>
Next: <a href="#install_002dtl-PROFILES" accesskey="n" rel="next">install-tl PROFILES</a>, Previous: <a href="#install_002dtl-REFERENCES" accesskey="p" rel="prev">install-tl REFERENCES</a>, Up: <a href="#install_002dtl" accesskey="u" rel="up">install-tl</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="OPTIONS"></span><h3 class="appendixsec">A.5 OPTIONS</h3>

<p>As usual, all options can be specified in any order, and with either a
leading <code>-</code> or <code>--</code>.  An argument value can be separated from its
option by either a space or <code>=</code>.
</p>
<dl compact="compact">
<dt><strong>-gui</strong> [[=]<em>module</em>]</dt>
<dd><span id="install_002dtl-_002dgui-_005b_005b_003d_005dmodule_005d"></span>
<p>If no <em>module</em> is given, starts the Tcl/Tk (see below) GUI installer.
</p>
<p>If <em>module</em> is given loads the given installer module. Currently the
following modules are supported:
</p>
<dl compact="compact">
<dt><code>text</code></dt>
<dd><span id="install_002dtl-text"></span>
<p>The text mode user interface (default on Unix systems).  Same as the
<code>-no-gui</code> option.
</p>
</dd>
<dt><code>tcl</code></dt>
<dd><span id="install_002dtl-tcl"></span>
<p>The Tcl/Tk user interface (default on Macs and Windows).  It starts
with a small number of configuration options, roughly equivalent
to what the wizard option below offers, but a button <code>Advanced</code>
takes you to a screen with roughly the same options as the <code>perltk</code>
interface.
</p>
</dd>
<dt><code>wizard</code></dt>
<dd><span id="install_002dtl-wizard"></span>
<p>The wizard mode user interface, asking only minimal questions before
installing all of TeX Live.
</p>
</dd>
<dt><code>expert</code></dt>
<dd><span id="install_002dtl-expert"></span>
<p>A generic name for, currently, <code>perltk</code>; it may select a different GUI
in the future.
</p>
</dd>
<dt><code>perltk</code></dt>
<dd><span id="install_002dtl-perltk"></span>
<p>The expert GUI installer, providing access to more options.
</p>
</dd>
</dl>

<p>The <code>perltk</code> and <code>wizard</code> modules require the Perl/Tk module
(<a href="https://tug.org/texlive/distro.html#perltk">https://tug.org/texlive/distro.html#perltk</a>). if Perl/Tk is not
available, installation continues in text mode, except on Windows,
where all gui options except <code>text</code> are diverted to the default
<code>tcl</code> GUI.
</p>
<p>The <code>tcl</code> GUI requires Tcl/Tk. This is standard on Macs and is often
already installed on GNU/Linux. For Windows, TeX Live provides a Tcl/Tk
runtime.
</p>
</dd>
<dt><strong>-no-gui</strong></dt>
<dd><span id="install_002dtl-_002dno_002dgui"></span>
<p>Use the text mode installer (default except on Windows and Macs).
</p>
</dd>
<dt><strong>-lang</strong> <em>llcode</em></dt>
<dd><span id="install_002dtl-_002dlang-llcode"></span>
<p>By default, the GUI tries to deduce your language from the
environment. The Tcl GUI uses the language detection built into
Tcl/Tk; the Perl/Tk GUIs use the <code>LC_MESSAGES</code> environment
variable. If that fails you can select a different language by
giving this option with a language code (based on ISO 639-1).
Currently supported (but not necessarily completely translated) are:
English (en, default), Czech (cs), German (de), French (fr), Italian
(it), Japanese (ja), Dutch (nl), Polish (pl), Brazilian Portuguese
(pt_BR), Russian (ru), Slovak (sk), Slovenian (sl), Serbian (sr),
Ukrainian (uk), Vietnamese (vi), simplified Chinese (zh_CN), and
traditional Chinese (zh_TW).
</p>
</dd>
<dt><strong>-repository</strong> <em>url|path</em></dt>
<dd><span id="install_002dtl-_002drepository-url_007cpath"></span>
<p>Specify the package repository to be used as the source of the
installation. In short, this can be a directory name or a url using
http(s), ftp, or scp. The documentation for <code>tlmgr</code> has the details
(<a href="https://tug.org/texlive/doc/tlmgr.html#OPTIONS">https://tug.org/texlive/doc/tlmgr.html#OPTIONS</a>).
</p>
<p>For installation, the default is to pick a mirror automatically, using
<a href="http://mirror.ctan.org/systems/texlive/tlnet">http://mirror.ctan.org/systems/texlive/tlnet</a>; the chosen mirror is
used for the entire download. You can use the special argument <code>ctan</code>
as an abbreviation for this. (See <a href="https://ctan.org">https://ctan.org</a> for more about CTAN
and its mirrors.)
</p>
<p>After installation is complete, you can use that installation as the
repository for another installation.  If you chose to install less than
the full scheme containing all packages, the list of available schemes
will be adjusted accordingly.
</p>
</dd>
<dt><strong>-select-repository</strong></dt>
<dd><span id="install_002dtl-_002dselect_002drepository"></span>
<p>This option allows you to choose a particular mirror from the current
list of active CTAN mirrors. This option is supported in the <code>text</code>,
<code>wizard</code> and <code>perltk</code> installer modes, and will also offer to install
from local media if available, or from a repository specified on the
command line. It&rsquo;s useful when the (default) automatic redirection does
not choose a good host for you.
</p>
</dd>
<dt><strong>-all-options</strong></dt>
<dd><span id="install_002dtl-_002dall_002doptions"></span>
<p>Normally options not relevant to the current platform are not shown
(e.g., when running on Unix, Windows-specific options are omitted).
Giving this command line option allows configuring such &quot;foreign&quot;
settings.
</p>
</dd>
<dt><strong>-custom-bin</strong> <em>path</em></dt>
<dd><span id="install_002dtl-_002dcustom_002dbin-path"></span>
<p>If you have built your own set of TeX Live binaries (perhaps because
your platform was not supported by TeX Live out of the box), this option
allows you to specify the <em>path</em> to a directory where the binaries for
the current system are present.  The installation will continue as
usual, but at the end all files from <em>path</em> are copied over to
<code>bin/custom/</code> under your installation directory and this <code>bin/custom/</code>
directory is what will be added to the path for the post-install
actions.  To install multiple custom binary sets, manually rename
<code>custom</code> before doing each.
</p>
<p>For more information on custom binaries, see
<a href="https://tug.org/texlive/custom-bin.html">https://tug.org/texlive/custom-bin.html</a>.  For general information on
building TeX Live, see <a href="https://tug.org/texlive/build.html">https://tug.org/texlive/build.html</a>.
</p>
</dd>
<dt><strong>-debug-translation</strong></dt>
<dd><span id="install_002dtl-_002ddebug_002dtranslation"></span>
<p>In the Perl/Tk GUI modes, this option reports any missing, or more
likely untranslated, messages to standard error. Helpful for
translators to see what remains to be done.
</p>
</dd>
<dt><strong>-force-platform</strong> <em>platform</em></dt>
<dd><span id="install_002dtl-_002dforce_002dplatform-platform"></span>
<p>Instead of auto-detecting the current platform, use <em>platform</em>.
Binaries for this platform must be present and they must actually be
runnable, or installation will fail.  <code>-force-arch</code> is a synonym.
</p>
</dd>
<dt><strong>-help</strong>, <strong>&ndash;help</strong>, <strong>-?</strong></dt>
<dd><span id="install_002dtl-_002dhelp_002c-_002d_002dhelp_002c-_002d_003f"></span>
<p>Display this help and exit. (This help is also on the web at
<a href="https://tug.org/texlive/doc/install-tl.html">https://tug.org/texlive/doc/install-tl.html</a>). Sometimes the <code>perldoc</code>
and/or <code>PAGER</code> programs on the system have problems, possibly resulting
in control characters being literally output. This can&rsquo;t always be
detected, but you can set the <code>NOPERLDOC</code> environment variable and
<code>perldoc</code> will not be used.
</p>
</dd>
<dt><strong>-in-place</strong></dt>
<dd><span id="install_002dtl-_002din_002dplace"></span>
<p>This is a quick-and-dirty installation option in case you already have
an rsync or svn checkout of TeX Live.  It will use the checkout as-is
and will just do the necessary post-install.  Be warned that the file
<code>tlpkg/texlive.tlpdb</code> may be rewritten, that removal has to be done
manually, and that the only realistic way to maintain this installation
is to redo it from time to time.  This option is not available via the
installer interfaces.  USE AT YOUR OWN RISK.
</p>
</dd>
<dt><strong>-init-from-profile</strong> <em>profile_file</em></dt>
<dd><span id="install_002dtl-_002dinit_002dfrom_002dprofile-profile_005ffile"></span>
<p>Similar to <strong>-profile</strong> (see <a href="#install_002dtl-PROFILES">PROFILES</a> below), but only initializes
the installation configuration from <em>profile_file</em> and then starts a
normal interactive session. Environment variables are not ignored.
</p>
</dd>
<dt><strong>-logfile</strong> <em>file</em></dt>
<dd><span id="install_002dtl-_002dlogfile-file"></span>
<p>Write both all messages (informational, debugging, warnings) to <em>file</em>,
in addition to standard output or standard error.
</p>
<p>If this option is not given, the installer will create a log file
in the root of the writable installation tree,
for example, <code>/usr/local/texlive/YYYY/install-tl.log</code> for the <em>YYYY</em>
release.
</p>
</dd>
<dt><strong>-no-cls</strong></dt>
<dd><span id="install_002dtl-_002dno_002dcls"></span>
<p>For the text mode installer only: do not clear the screen when entering
a new menu (for debugging purposes).
</p>
</dd>
<dt><strong>-no-persistent-downloads</strong></dt>
<dd><span id="install_002dtl-_002dno_002dpersistent_002ddownloads"></span>
</dd>
<dt><strong>-persistent-downloads</strong></dt>
<dd><span id="install_002dtl-_002dpersistent_002ddownloads"></span>
<p>For network installs, activating this option makes the installer try to
set up a persistent connection using the <code>Net::LWP</code> Perl module.  This
opens only one connection between your computer and the server per
session and reuses it, instead of initiating a new download for each
package, which typically yields a significant speed-up.
</p>
<p>This option is turned on by default, and the installation program will
fall back to using <code>wget</code> if this is not possible.  To disable usage of
LWP and persistent connections, use <code>-no-persistent-downloads</code>.
</p>
</dd>
<dt><strong>-no-verify-downloads</strong></dt>
<dd><span id="install_002dtl-_002dno_002dverify_002ddownloads"></span>
<p>By default, if a GnuPG <code>gpg</code> binary is found in PATH, downloads are
verified against a cryptographic signature. This option disables such
verification.  The full description is in the Crytographic Verification
section of the <code>tlmgr</code> documentation, e.g.,
<a href="https://tug.org/texlive/doc/tlmgr.html#CRYPTOGRAPHIC-VERIFICATION">https://tug.org/texlive/doc/tlmgr.html#CRYPTOGRAPHIC-VERIFICATION</a>
</p>
</dd>
<dt><strong>-non-admin</strong></dt>
<dd><span id="install_002dtl-_002dnon_002dadmin"></span>
<p>For Windows only: configure for the current user, not for all users.
</p>
</dd>
<dt><strong>-portable</strong></dt>
<dd><span id="install_002dtl-_002dportable"></span>
<p>Install for portable use, e.g., on a USB stick.  Also selectable from
within the perltk and text installers.
</p>
</dd>
<dt><strong>-print-platform</strong></dt>
<dd><span id="install_002dtl-_002dprint_002dplatform"></span>
<p>Print the TeX Live identifier for the detected platform
(hardware/operating system) combination to standard output, and exit.
<code>-print-arch</code> is a synonym.
</p>
</dd>
<dt><strong>-profile</strong> <em>profile_file</em></dt>
<dd><span id="install_002dtl-_002dprofile-profile_005ffile"></span>
<p>Load <em>profile_file</em> and do the installation with no user interaction,
that is, a batch (unattended) install.  Environment variables are
ignored. See <a href="#install_002dtl-PROFILES">PROFILES</a> below.
</p>
</dd>
<dt><strong>-q</strong></dt>
<dd><span id="install_002dtl-_002dq"></span>
<p>Omit normal informational messages.
</p>
</dd>
<dt><strong>-scheme</strong> <em>scheme</em></dt>
<dd><span id="install_002dtl-_002dscheme-scheme"></span>
<p>Schemes are the highest level of package grouping in TeX Live; the
default is to use the <code>full</code> scheme, which includes everything.  This
option overrides that default.  You can change the scheme again before
the actual installation with the usual menu.  The <em>scheme</em> argument may
optionally have a prefix <code>scheme-</code>.  The list of supported scheme names
depends on what your package repository provides; see the interactive
menu list.
</p>
</dd>
<dt><strong>-v</strong></dt>
<dd><span id="install_002dtl-_002dv"></span>
<p>Include verbose debugging messages; repeat for maximum debugging: <code>-v
-v</code>.  (Further repeats are accepted but ignored.)
</p>
</dd>
<dt><strong>-version</strong>, <strong>&ndash;version</strong></dt>
<dd><span id="install_002dtl-_002dversion_002c-_002d_002dversion"></span>
<p>Output version information and exit.  If <code>-v</code> is also given, the
versions of the TeX Live modules used are also reported.
</p>
</dd>
</dl>

<hr>
<span id="install_002dtl-PROFILES"></span><div class="header">
<p>
Next: <a href="#install_002dtl-ENVIRONMENT-VARIABLES" accesskey="n" rel="next">install-tl ENVIRONMENT VARIABLES</a>, Previous: <a href="#install_002dtl-OPTIONS" accesskey="p" rel="prev">install-tl OPTIONS</a>, Up: <a href="#install_002dtl" accesskey="u" rel="up">install-tl</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="PROFILES"></span><h3 class="appendixsec">A.6 PROFILES</h3>

<p>A <em>profile</em> file contains all the values needed to perform an
installation.  After a normal installation has finished, a profile for
that exact installation is written to the file <code>tlpkg/texlive.profile</code>.
In addition, from the text menu one can select <code>P</code> to save the current
setup as a profile at any time.
</p>
<p>Such a profile file can be given as the argument to <code>-profile</code>, for
example to redo the exact same installation on a different system.
Alternatively, you can use a custom profile, most easily created by
starting from a generated one and changing values, or an empty file,
which will take all the defaults.
</p>
<p>As mentioned above, the installer only supports selection by scheme and
collections, not individual packages, so packages cannot be specified in
profile files either. Use <code>tlmgr</code> to work at the package level.
</p>
<p>Within a profile file, each line consists of
</p>
<p><em>variable</em> [<em>value</em>]
</p>
<p>except for comment lines starting with <code>#</code>.  The possible variable
names are listed below.  Values, when present, are either <code>0</code> or <code>1</code>
for booleans, or strings (which must be specified without any quote
characters).  Leading whitespace is ignored.
</p>
<p>If the variable <code>selected_scheme</code> is defined and <em>no</em> collection
variables at all are defined, then the collections required by the
specified scheme (which might change over time) are installed, without
explicitly listing them.  This eases maintenance of profile files.  If
any collections are specified in a profile, though, then all desired
collections must be given explicitly.
</p>
<p>For example, a line 
</p>
<pre class="verbatim">  selected_scheme scheme-small
</pre>
<p>along with definitions for the installation directories (given below
under &quot;path options&quot;) suffices to install the &quot;small&quot; scheme with all
default options.  The schemes are described in the <code>S</code> menu in the
text installer, or equivalent.
</p>
<p>Besides <code>selected_scheme</code>, here is the list of variable names supported
in a profile:
</p>
<p><strong>collection options</strong> (prefix <code>collection-</code>)
</p>
<p>Collections are specified with a variable name with the prefix
<code>collection-</code> followed by a collection name; there is no value.  For
instance, <code>collection-basic</code>.  The collections are described in the
<code>C</code> menu.
</p>
<p>Schemes and collections (and packages) are ultimately defined by the
files in the <code>tlpkg/tlpsrc/</code> source directory.
</p>
<p><strong>path options</strong>
</p>
<p>It is best to define all of these, even though they may not be used in
the installation, so as to avoid unintentionally getting a default value
that could cause problems later.
</p>
<pre class="verbatim">  TEXDIR
  TEXMFCONFIG
  TEXMFVAR
  TEXMFHOME
  TEXMFLOCAL
  TEXMFSYSCONFIG
  TEXMFSYSVAR
</pre>
<p><strong>installer options</strong> (prefix <code>instopt_</code>)
</p>
<dl compact="compact">
<dt><code>instopt_adjustpath</code> (default 0 on Unix, 1 on Windows)</dt>
<dd><span id="install_002dtl-instopt_005fadjustpath-_0028default-0-on-Unix_002c-1-on-Windows_0029"></span>
<p>Adjust <code>PATH</code> environment variable.
</p>
</dd>
<dt><code>instopt_adjustrepo</code> (default 1)</dt>
<dd><span id="install_002dtl-instopt_005fadjustrepo-_0028default-1_0029"></span>
<p>Set remote repository to a multiplexed CTAN mirror after installation;
see <code>-repository</code> above.
</p>
</dd>
<dt><code>instopt_letter</code> (default 0)</dt>
<dd><span id="install_002dtl-instopt_005fletter-_0028default-0_0029"></span>
<p>Set letter size paper as the default, instead of a4.
</p>
</dd>
<dt><code>instopt_portable</code> (default 0)</dt>
<dd><span id="install_002dtl-instopt_005fportable-_0028default-0_0029"></span>
<p>Install for portable use, e.g., on a USB stick.
</p>
</dd>
<dt><code>instopt_write18_restricted</code> (default 1)</dt>
<dd><span id="install_002dtl-instopt_005fwrite18_005frestricted-_0028default-1_0029"></span>
<p>Enable <code>\write18</code> for a restricted set of programs.
</p>
</dd>
</dl>

<p><strong>tlpdb options</strong> (prefix <code>tlpdbopt_</code>)
</p>
<p>The definitive list is given in <code>tlpkg/TeXLive/TLConfig.pm</code>, in the hash
<code>%TeXLive::TLConfig::TLPDBOptions</code>, together with explanations.  All
items given there <em>except</em> for <code>tlpdbopt_location</code> can be specified.
Here is the current list:
</p>
<pre class="verbatim">  tlpdbopt_autobackup
  tlpdbopt_backupdir
  tlpdbopt_create_formats
  tlpdbopt_desktop_integration
  tlpdbopt_file_assocs
  tlpdbopt_generate_updmap
  tlpdbopt_install_docfiles
  tlpdbopt_install_srcfiles
  tlpdbopt_post_code
  tlpdbopt_sys_bin
  tlpdbopt_sys_info
  tlpdbopt_sys_man
  tlpdbopt_w32_multi_user
</pre>
<p><strong>platform options</strong> (prefix <code>binary_</code>)
</p>
<p>For each supported platform in TeX Live (directories under <code>bin/</code>), the
variable <code>binary_</code><em>PLATFORM</em> can be set with value 1.  For example:
</p>
<pre class="verbatim">  binary_x86_64-linux 1
</pre>
<p>If no <code>binary_</code> settings are made, the default is whatever the
current machine is running.
</p>
<p>In releases before 2017, many profile variables had different
names (not documented here; see the <code>install-tl</code> source).  They are
accepted and transformed to the names given above.  When a profile is
written, the names above are always used.
</p>
<p>For more details on all of the above options, consult the TeX Live
installation manual, linked from <a href="https://tug.org/texlive/doc">https://tug.org/texlive/doc</a>.
</p>
<hr>
<span id="install_002dtl-ENVIRONMENT-VARIABLES"></span><div class="header">
<p>
Next: <a href="#install_002dtl-AUTHORS-AND-COPYRIGHT" accesskey="n" rel="next">install-tl AUTHORS AND COPYRIGHT</a>, Previous: <a href="#install_002dtl-PROFILES" accesskey="p" rel="prev">install-tl PROFILES</a>, Up: <a href="#install_002dtl" accesskey="u" rel="up">install-tl</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="ENVIRONMENT-VARIABLES"></span><h3 class="appendixsec">A.7 ENVIRONMENT VARIABLES</h3>

<p>For ease in scripting and debugging, <code>install-tl</code> looks for the
following environment variables. They are not of interest for normal
user installations.
</p>
<dl compact="compact">
<dt><code>TEXLIVE_DOWNLOADER</code></dt>
<dd><span id="install_002dtl-TEXLIVE_005fDOWNLOADER"></span>
</dd>
<dt><code>TL_DOWNLOAD_PROGRAM</code></dt>
<dd><span id="install_002dtl-TL_005fDOWNLOAD_005fPROGRAM"></span>
</dd>
<dt><code>TL_DOWNLOAD_ARGS</code></dt>
<dd><span id="install_002dtl-TL_005fDOWNLOAD_005fARGS"></span>
<p>These override the normal choice of a download program; see the <code>tlmgr</code>
documentation, e.g.,
<a href="https://tug.org/texlive/doc/tlmgr.html#ENVIRONMENT-VARIABLES">https://tug.org/texlive/doc/tlmgr.html#ENVIRONMENT-VARIABLES</a>.
</p>
</dd>
<dt><code>TEXLIVE_INSTALL_ENV_NOCHECK</code></dt>
<dd><span id="install_002dtl-TEXLIVE_005fINSTALL_005fENV_005fNOCHECK"></span>
<p>Omit the check for environment variables containing the string <code>tex</code>.
People developing TeX-related software are likely to have many such
variables.
</p>
</dd>
<dt><code>TEXLIVE_INSTALL_NO_CONTEXT_CACHE</code></dt>
<dd><span id="install_002dtl-TEXLIVE_005fINSTALL_005fNO_005fCONTEXT_005fCACHE"></span>
<p>Omit creating the ConTeXt cache.  This is useful for redistributors.
</p>
</dd>
<dt><code>TEXLIVE_INSTALL_NO_IMPORT</code></dt>
<dd><span id="install_002dtl-TEXLIVE_005fINSTALL_005fNO_005fIMPORT"></span>
<p>Omit check for installing on top of a previous installation and then
asking about importing previous settings.
</p>
</dd>
<dt><code>TEXLIVE_INSTALL_NO_WELCOME</code></dt>
<dd><span id="install_002dtl-TEXLIVE_005fINSTALL_005fNO_005fWELCOME"></span>
<p>Omit printing the welcome message after successful installation, e.g.,
when testing.
</p>
</dd>
<dt><code>TEXLIVE_INSTALL_PREFIX</code></dt>
<dd><span id="install_002dtl-TEXLIVE_005fINSTALL_005fPREFIX"></span>
</dd>
<dt><code>TEXLIVE_INSTALL_TEXDIR</code></dt>
<dd><span id="install_002dtl-TEXLIVE_005fINSTALL_005fTEXDIR"></span>
</dd>
<dt><code>TEXLIVE_INSTALL_TEXMFCONFIG</code></dt>
<dd><span id="install_002dtl-TEXLIVE_005fINSTALL_005fTEXMFCONFIG"></span>
</dd>
<dt><code>TEXLIVE_INSTALL_TEXMFVAR</code></dt>
<dd><span id="install_002dtl-TEXLIVE_005fINSTALL_005fTEXMFVAR"></span>
</dd>
<dt><code>TEXLIVE_INSTALL_TEXMFHOME</code></dt>
<dd><span id="install_002dtl-TEXLIVE_005fINSTALL_005fTEXMFHOME"></span>
</dd>
<dt><code>TEXLIVE_INSTALL_TEXMFLOCAL</code></dt>
<dd><span id="install_002dtl-TEXLIVE_005fINSTALL_005fTEXMFLOCAL"></span>
</dd>
<dt><code>TEXLIVE_INSTALL_TEXMFSYSCONFIG</code></dt>
<dd><span id="install_002dtl-TEXLIVE_005fINSTALL_005fTEXMFSYSCONFIG"></span>
</dd>
<dt><code>TEXLIVE_INSTALL_TEXMFSYSVAR</code></dt>
<dd><span id="install_002dtl-TEXLIVE_005fINSTALL_005fTEXMFSYSVAR"></span>
<p>Specify the respective directories.  <code>TEXLIVE_INSTALL_PREFIX</code> defaults
to <code>/usr/local/texlive</code>, while <code>TEXLIVE_INSTALL_TEXDIR</code> defaults to
the release directory within that prefix, e.g.,
<code>/usr/local/texlive/2016</code>.  All the defaults can be seen by running the
installer interactively and then typing <code>D</code> for the directory menu.
</p>
</dd>
<dt><code>NOPERLDOC</code></dt>
<dd><span id="install_002dtl-NOPERLDOC"></span>
<p>Don&rsquo;t try to run the <code>--help</code> message through <code>perldoc</code>.
</p>
</dd>
</dl>

<hr>
<span id="install_002dtl-AUTHORS-AND-COPYRIGHT"></span><div class="header">
<p>
Previous: <a href="#install_002dtl-ENVIRONMENT-VARIABLES" accesskey="p" rel="prev">install-tl ENVIRONMENT VARIABLES</a>, Up: <a href="#install_002dtl" accesskey="u" rel="up">install-tl</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="AUTHORS-AND-COPYRIGHT"></span><h3 class="appendixsec">A.8 AUTHORS AND COPYRIGHT</h3>

<p>This script and its documentation were written for the TeX Live
distribution (<a href="https://tug.org/texlive">https://tug.org/texlive</a>) and both are licensed under the
GNU General Public License Version 2 or later.
</p>
<p>$Id: install-tl 54143 2020-03-06 23:51:18Z karl $
</p>
<hr>
<span id="tlmgr"></span><div class="header">
<p>
Next: <a href="#Index" accesskey="n" rel="next">Index</a>, Previous: <a href="#install_002dtl" accesskey="p" rel="prev">install-tl</a>, Up: <a href="#Top" accesskey="u" rel="up">Top</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="tlmgr-1"></span><h2 class="appendix">Appendix B tlmgr</h2>

<table class="menu" border="0" cellspacing="0">
<tr><td align="left" valign="top">&bull; <a href="#tlmgr-NAME" accesskey="1">tlmgr NAME</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#tlmgr-SYNOPSIS" accesskey="2">tlmgr SYNOPSIS</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#tlmgr-DESCRIPTION" accesskey="3">tlmgr DESCRIPTION</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#tlmgr-EXAMPLES" accesskey="4">tlmgr EXAMPLES</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#tlmgr-OPTIONS" accesskey="5">tlmgr OPTIONS</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#tlmgr-ACTIONS" accesskey="6">tlmgr ACTIONS</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#tlmgr-CONFIGURATION-FILE-FOR-TLMGR" accesskey="7">tlmgr CONFIGURATION FILE FOR TLMGR</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#tlmgr-CRYPTOGRAPHIC-VERIFICATION" accesskey="8">tlmgr CRYPTOGRAPHIC VERIFICATION</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#tlmgr-USER-MODE" accesskey="9">tlmgr USER MODE</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#tlmgr-MULTIPLE-REPOSITORIES">tlmgr MULTIPLE REPOSITORIES</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#tlmgr-GUI-FOR-TLMGR">tlmgr GUI FOR TLMGR</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#tlmgr-MACHINE_002dREADABLE-OUTPUT">tlmgr MACHINE-READABLE OUTPUT</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#tlmgr-ENVIRONMENT-VARIABLES">tlmgr ENVIRONMENT VARIABLES</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#tlmgr-AUTHORS-AND-COPYRIGHT">tlmgr AUTHORS AND COPYRIGHT</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
</table>

<hr>
<span id="tlmgr-NAME"></span><div class="header">
<p>
Next: <a href="#tlmgr-SYNOPSIS" accesskey="n" rel="next">tlmgr SYNOPSIS</a>, Up: <a href="#tlmgr" accesskey="u" rel="up">tlmgr</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="NAME-1"></span><h3 class="appendixsec">B.1 NAME</h3>

<p>tlmgr - the native TeX Live Manager
</p>
<hr>
<span id="tlmgr-SYNOPSIS"></span><div class="header">
<p>
Next: <a href="#tlmgr-DESCRIPTION" accesskey="n" rel="next">tlmgr DESCRIPTION</a>, Previous: <a href="#tlmgr-NAME" accesskey="p" rel="prev">tlmgr NAME</a>, Up: <a href="#tlmgr" accesskey="u" rel="up">tlmgr</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="SYNOPSIS-1"></span><h3 class="appendixsec">B.2 SYNOPSIS</h3>

<p>tlmgr [<em>option</em>...] <em>action</em> [<em>option</em>...] [<em>operand</em>...]
</p>
<hr>
<span id="tlmgr-DESCRIPTION"></span><div class="header">
<p>
Next: <a href="#tlmgr-EXAMPLES" accesskey="n" rel="next">tlmgr EXAMPLES</a>, Previous: <a href="#tlmgr-SYNOPSIS" accesskey="p" rel="prev">tlmgr SYNOPSIS</a>, Up: <a href="#tlmgr" accesskey="u" rel="up">tlmgr</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="DESCRIPTION-1"></span><h3 class="appendixsec">B.3 DESCRIPTION</h3>

<p><strong>tlmgr</strong> manages an existing TeX Live installation, both packages and
configuration options.  For information on initially downloading and
installing TeX Live, see <a href="https://tug.org/texlive/acquire.html">https://tug.org/texlive/acquire.html</a>.
</p>
<p>The most up-to-date version of this documentation (updated nightly from
the development sources) is available at
<a href="https://tug.org/texlive/tlmgr.html">https://tug.org/texlive/tlmgr.html</a>, along with procedures for updating
<code>tlmgr</code> itself and information about test versions.
</p>
<p>TeX Live is organized into a few top-level <em>schemes</em>, each of which is
specified as a different set of <em>collections</em> and <em>packages</em>, where a
collection is a set of packages, and a package is what contains actual
files.  Schemes typically contain a mix of collections and packages, but
each package is included in exactly one collection, no more and no less.
A TeX Live installation can be customized and managed at any level.
</p>
<p>See <a href="https://tug.org/texlive/doc">https://tug.org/texlive/doc</a> for all the TeX Live documentation
available.
</p>
<hr>
<span id="tlmgr-EXAMPLES"></span><div class="header">
<p>
Next: <a href="#tlmgr-OPTIONS" accesskey="n" rel="next">tlmgr OPTIONS</a>, Previous: <a href="#tlmgr-DESCRIPTION" accesskey="p" rel="prev">tlmgr DESCRIPTION</a>, Up: <a href="#tlmgr" accesskey="u" rel="up">tlmgr</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="EXAMPLES"></span><h3 class="appendixsec">B.4 EXAMPLES</h3>

<p>After successfully installing TeX Live, here are a few common operations
with <code>tlmgr</code>:
</p>
<dl compact="compact">
<dt><code>tlmgr option repository ctan</code></dt>
<dd><span id="tlmgr-tlmgr-option-repository-ctan"></span>
</dd>
<dt><code>tlmgr option repository http://mirror.ctan.org/systems/texlive/tlnet</code></dt>
<dd><span id="tlmgr-tlmgr-option-repository-http_003a_002f_002fmirror_002ectan_002eorg_002fsystems_002ftexlive_002ftlnet"></span>
<p>Tell <code>tlmgr</code> to use a nearby CTAN mirror for future updates; useful if
you installed TeX Live from the DVD image and want to have continuing
updates.  The two commands are equivalent; <code>ctan</code> is just an alias for
the given url.
</p>
<p>Caveat: <code>mirror.ctan.org</code> resolves to many different hosts, and they
are not perfectly synchronized; we recommend updating only daily (at
most), and not more often. You can choose a particular mirror if
problems; the list of all CTAN mirrors with the status of each is at
<a href="https://ctan.org/mirrors/mirmon">https://ctan.org/mirrors/mirmon</a>.
</p>
</dd>
<dt><code>tlmgr update --list</code></dt>
<dd><span id="tlmgr-tlmgr-update-_002d_002dlist"></span>
<p>Report what would be updated without actually updating anything.
</p>
</dd>
<dt><code>tlmgr update --all</code></dt>
<dd><span id="tlmgr-tlmgr-update-_002d_002dall"></span>
<p>Make your local TeX installation correspond to what is in the package
repository (typically useful when updating from CTAN).
</p>
</dd>
<dt><code>tlmgr info</code> <em>what</em></dt>
<dd><span id="tlmgr-tlmgr-info-what"></span>
<p>Display detailed information about a package <em>what</em>, such as the installation
status and description, of searches for <em>what</em> in all packages.
</p>
</dd>
</dl>

<p>For all the capabilities and details of <code>tlmgr</code>, please read the
following voluminous information.
</p>
<hr>
<span id="tlmgr-OPTIONS"></span><div class="header">
<p>
Next: <a href="#tlmgr-ACTIONS" accesskey="n" rel="next">tlmgr ACTIONS</a>, Previous: <a href="#tlmgr-EXAMPLES" accesskey="p" rel="prev">tlmgr EXAMPLES</a>, Up: <a href="#tlmgr" accesskey="u" rel="up">tlmgr</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="OPTIONS-1"></span><h3 class="appendixsec">B.5 OPTIONS</h3>

<p>The following options to <code>tlmgr</code> are global options, not specific to
any action.  All options, whether global or action-specific, can be
given anywhere on the command line, and in any order.  The first
non-option argument will be the main action.  In all cases,
<code>--</code><em>option</em> and <code>-</code><em>option</em> are equivalent, and an <code>=</code> is optional
between an option name and its value.
</p>
<dl compact="compact">
<dt><strong>&ndash;repository</strong> <em>url|path</em></dt>
<dd><span id="tlmgr-_002d_002drepository-url_007cpath"></span>
<p>Specify the package repository from which packages should be installed
or updated, either a local directory or network location, as below. This
overridesthe default package repository found in the installation&rsquo;s TeX
Live Package Database (a.k.a. the TLPDB, which is given entirely in the
file <code>tlpkg/texlive.tlpdb</code>).
</p>
<p>This <code>--repository</code> option changes the location only for the current
run; to make a permanent change, use <code>option repository</code> (see the
<a href="#tlmgr-option">option</a> action).
</p>
<p>As an example, you can choose a particular CTAN mirror with something
like this:
</p>
<pre class="verbatim">  -repository http://ctan.example.org/its/ctan/dir/systems/texlive/tlnet
</pre>
<p>Of course a real hostname and its particular top-level CTAN directory
have to be specified.  The list of CTAN mirrors is available at
<a href="https://ctan.org/mirrors/mirmon">https://ctan.org/mirrors/mirmon</a>.
</p>
<p>Here&rsquo;s an example of using a local directory:
</p>
<pre class="verbatim">  -repository /local/TL/repository
</pre>
<p>For backward compatibility and convenience, <code>--location</code> and <code>--repo</code>
are accepted as aliases for this option.
</p>
<p>Locations can be specified as any of the following:
</p>
<dl compact="compact">
<dt><code>/some/local/dir</code></dt>
<dd><span id="tlmgr-_002fsome_002flocal_002fdir"></span>
</dd>
<dt><code>file:/some/local/dir</code></dt>
<dd><span id="tlmgr-file_003a_002fsome_002flocal_002fdir"></span>
<p>Equivalent ways of specifying a local directory.
</p>
</dd>
<dt><code>ctan</code></dt>
<dd><span id="tlmgr-ctan"></span>
</dd>
<dt><code>http://mirror.ctan.org/systems/texlive/tlnet</code></dt>
<dd><span id="tlmgr-http_003a_002f_002fmirror_002ectan_002eorg_002fsystems_002ftexlive_002ftlnet"></span>
<p>Pick a CTAN mirror automatically, trying for one that is both nearby and
up-to-date. The chosen mirror is used for the entire download. The bare
<code>ctan</code> is merely an alias for the full url. (See <a href="https://ctan.org">https://ctan.org</a> for
more about CTAN and its mirrors.)
</p>
</dd>
<dt><code>http://server/path/to/tlnet</code></dt>
<dd><span id="tlmgr-http_003a_002f_002fserver_002fpath_002fto_002ftlnet"></span>
<p>Standard HTTP. If the (default) LWP method is used, persistent
connections are supported. TL can also use <code>curl</code> or <code>wget</code> to do the
downloads, or an arbitrary user-specified program, as described in the
<code>tlmgr</code> documentation
(<a href="https://tug.org/texlive/doc/tlmgr.html#ENVIRONMENT-VARIABLES">https://tug.org/texlive/doc/tlmgr.html#ENVIRONMENT-VARIABLES</a>).
</p>
</dd>
<dt><code>https://server/path/to/tlnet</code></dt>
<dd><span id="tlmgr-https_003a_002f_002fserver_002fpath_002fto_002ftlnet"></span>
<p>Again, if the (default) LWP method is used, this supports persistent
connections. Unfortunately, some versions of <code>wget</code> and <code>curl</code> do not
support https, and even when <code>wget</code> supports https, certificates may be
rejected even when the certificate is fine, due to a lack of local
certificate roots. The simplest workaround for this problem is to use
http or ftp.
</p>
</dd>
<dt><code>ftp://server/path/to/tlnet</code></dt>
<dd><span id="tlmgr-ftp_003a_002f_002fserver_002fpath_002fto_002ftlnet"></span>
<p>If the (default) LWP method is used, persistent connections are
supported.
</p>
</dd>
<dt><code>user@machine:/path/to/tlnet</code></dt>
<dd><span id="tlmgr-user_0040machine_003a_002fpath_002fto_002ftlnet"></span>
</dd>
<dt><code>scp://user@machine/path/to/tlnet</code></dt>
<dd><span id="tlmgr-scp_003a_002f_002fuser_0040machine_002fpath_002fto_002ftlnet"></span>
</dd>
<dt><code>ssh://user@machine/path/to/tlnet</code></dt>
<dd><span id="tlmgr-ssh_003a_002f_002fuser_0040machine_002fpath_002fto_002ftlnet"></span>
<p>These forms are equivalent; they all use <code>scp</code> to transfer files. Using
<code>ssh-agent</code> is recommended. (Info:
<a href="https://en.wikipedia.org/wiki/OpenSSH">https://en.wikipedia.org/wiki/OpenSSH</a>,
<a href="https://en.wikipedia.org/wiki/Ssh-agent">https://en.wikipedia.org/wiki/Ssh-agent</a>.)
</p>
</dd>
</dl>

<p>If the repository is on the network, trailing <code>/</code> characters and/or
trailing <code>/tlpkg</code> and/or <code>/archive</code> components are ignored.  
</p>
</dd>
<dt><strong>&ndash;gui</strong> [<em>action</em>]</dt>
<dd><span id="tlmgr-_002d_002dgui-_005baction_005d"></span>
<p>Two notable GUI front-ends for <code>tlmgr</code>, <code>tlshell</code> and <code>tlcockpit</code>,
are started up as separate programs; see their own documentation.
</p>
<p><code>tlmgr</code> itself has a graphical interface as well as the command line
interface. You can give the option to invoke it, <code>--gui</code>, together with
an action to be brought directly into the respective screen of the GUI.
For example, running
</p>
<pre class="verbatim">  tlmgr --gui update
</pre>
<p>starts you directly at the update screen.  If no action is given, the
GUI will be started at the main screen.  See <a href="#tlmgr-GUI-FOR-TLMGR">GUI FOR TLMGR</a>.
</p>
<p>However, the native GUI requires Perl/TK, which is no longer included in
TeX Live&rsquo;s Perl distribution for Windows. You may find <code>tlshell</code> or
<code>tlcockpit</code> easier to work with. 
</p>
</dd>
<dt><strong>&ndash;gui-lang</strong> <em>llcode</em></dt>
<dd><span id="tlmgr-_002d_002dgui_002dlang-llcode"></span>
<p>By default, the GUI tries to deduce your language from the environment
(on Windows via the registry, on Unix via <code>LC_MESSAGES</code>). If that fails
you can select a different language by giving this option with a
language code (based on ISO 639-1). Currently supported (but not
necessarily completely translated) are: English&nbsp;(en,&nbsp;default)<!-- /@w -->,
Czech&nbsp;(cs)<!-- /@w -->, German&nbsp;(de)<!-- /@w -->, French&nbsp;(fr)<!-- /@w -->, Italian&nbsp;(it)<!-- /@w -->,
Japanese&nbsp;(ja)<!-- /@w -->, Dutch&nbsp;(nl)<!-- /@w -->, Polish&nbsp;(pl)<!-- /@w -->, Brazilian&nbsp;Portuguese&nbsp;<span class="nolinebreak">(pt_BR)</span><!-- /@w -->, Russian&nbsp;(ru)<!-- /@w -->, Slovak&nbsp;(sk)<!-- /@w -->, Slovenian&nbsp;(sl)<!-- /@w -->, Serbian&nbsp;(sr)<!-- /@w -->, Ukrainian&nbsp;(uk)<!-- /@w -->, Vietnamese&nbsp;(vi)<!-- /@w -->, simplified&nbsp;Chinese&nbsp;<span class="nolinebreak">(zh_CN)</span><!-- /@w -->, and traditional&nbsp;Chinese&nbsp;<span class="nolinebreak">(zh_TW)</span><!-- /@w -->.
</p>
<p>tlshell shares its message catalog with tlmgr.
</p>
</dd>
<dt><strong>&ndash;debug-translation</strong></dt>
<dd><span id="tlmgr-_002d_002ddebug_002dtranslation"></span>
<p>In GUI mode, this switch tells <code>tlmgr</code> to report any untranslated (or
missing) messages to standard error.  This can help translators to see
what remains to be done.
</p>
</dd>
<dt><strong>&ndash;machine-readable</strong></dt>
<dd><span id="tlmgr-_002d_002dmachine_002dreadable"></span>
<p>Instead of the normal output intended for human consumption, write (to
standard output) a fixed format more suitable for machine parsing.  See
the <a href="#tlmgr-MACHINE_002dREADABLE-OUTPUT">MACHINE-READABLE OUTPUT</a> section below.
</p>
</dd>
<dt><strong>&ndash;no-execute-actions</strong></dt>
<dd><span id="tlmgr-_002d_002dno_002dexecute_002dactions"></span>
<p>Suppress the execution of the execute actions as defined in the tlpsrc
files.  Documented only for completeness, as this is only useful in
debugging.
</p>
</dd>
<dt><strong>&ndash;package-logfile</strong> <em>file</em></dt>
<dd><span id="tlmgr-_002d_002dpackage_002dlogfile-file"></span>
<p><code>tlmgr</code> logs all package actions (install, remove, update, failed
updates, failed restores) to a separate log file, by default
<code>TEXMFSYSVAR/web2c/tlmgr.log</code>.  This option allows you to specify a
different file for the log.
</p>
</dd>
<dt><strong>&ndash;pause</strong></dt>
<dd><span id="tlmgr-_002d_002dpause"></span>
<p>This option makes <code>tlmgr</code> wait for user input before exiting.  Useful on
Windows to avoid disappearing command windows.
</p>
</dd>
<dt><strong>&ndash;persistent-downloads</strong></dt>
<dd><span id="tlmgr-_002d_002dpersistent_002ddownloads"></span>
</dd>
<dt><strong>&ndash;no-persistent-downloads</strong></dt>
<dd><span id="tlmgr-_002d_002dno_002dpersistent_002ddownloads"></span>
<p>For network-based installations, this option (on by default) makes
<code>tlmgr</code> try to set up a persistent connection (using the <code>LWP</code> Perl
module).  The idea is to open and reuse only one connection per session
between your computer and the server, instead of initiating a new
download for each package.
</p>
<p>If this is not possible, <code>tlmgr</code> will fall back to using <code>wget</code>.  To
disable these persistent connections, use <code>--no-persistent-downloads</code>.
</p>
</dd>
<dt><strong>&ndash;pin-file</strong></dt>
<dd><span id="tlmgr-_002d_002dpin_002dfile"></span>
<p>Change the pinning file location from <code>TEXMFLOCAL/tlpkg/pinning.txt</code>
(see <a href="#tlmgr-Pinning">Pinning</a> below).  Documented only for completeness, as this is
only useful in debugging.
</p>
</dd>
<dt><strong>&ndash;usermode</strong></dt>
<dd><span id="tlmgr-_002d_002dusermode"></span>
<p>Activates user mode for this run of <code>tlmgr</code>; see <a href="#tlmgr-USER-MODE">USER MODE</a> below.
</p>
</dd>
<dt><strong>&ndash;usertree</strong> <em>dir</em></dt>
<dd><span id="tlmgr-_002d_002dusertree-dir"></span>
<p>Uses <em>dir</em> for the tree in user mode; see <a href="#tlmgr-USER-MODE">USER MODE</a> below.
</p>
</dd>
<dt><strong>&ndash;verify-repo=[none|main|all]</strong></dt>
<dd><span id="tlmgr-_002d_002dverify_002drepo_003d_005bnone_007cmain_007call_005d"></span>
<p>Defines the level of verification done: If <code>none</code> is specified, no
verification whatsoever is done. If <code>main</code> is given and a working GnuPG
(<code>gpg</code>) binary is available, all repositories are checked, but only the
main repository is required to be signed. If <code>all</code> is given, then all
repositories need to be signed.  See <a href="#tlmgr-CRYPTOGRAPHIC-VERIFICATION">CRYPTOGRAPHIC VERIFICATION</a> below
for details.
</p>
</dd>
</dl>

<p>The standard options for TeX Live programs are also accepted:
<code>--help/-h/-?</code>, <code>--version</code>, <code>-q</code> (no informational messages), <code>-v</code>
(debugging messages, can be repeated).  For the details about these, see
the <code>TeXLive::TLUtils</code> documentation.
</p>
<p>The <code>--version</code> option shows version information about the TeX Live
release and about the <code>tlmgr</code> script itself.  If <code>-v</code> is also given,
revision number for the loaded TeX Live Perl modules are shown, too.
</p>
<hr>
<span id="tlmgr-ACTIONS"></span><div class="header">
<p>
Next: <a href="#tlmgr-CONFIGURATION-FILE-FOR-TLMGR" accesskey="n" rel="next">tlmgr CONFIGURATION FILE FOR TLMGR</a>, Previous: <a href="#tlmgr-OPTIONS" accesskey="p" rel="prev">tlmgr OPTIONS</a>, Up: <a href="#tlmgr" accesskey="u" rel="up">tlmgr</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="ACTIONS"></span><h3 class="appendixsec">B.6 ACTIONS</h3>

<table class="menu" border="0" cellspacing="0">
<tr><td align="left" valign="top">&bull; <a href="#tlmgr-help" accesskey="1">tlmgr help</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#tlmgr-version" accesskey="2">tlmgr version</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#tlmgr-backup" accesskey="3">tlmgr backup</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#tlmgr-candidates-pkg" accesskey="4">tlmgr candidates <em>pkg</em></a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#tlmgr-check-_005boption_002e_002e_002e_005d-_005bdepends_007cexecutes_007cfiles_007crunfiles_007ctexmfdbs_007call_005d" accesskey="5">tlmgr check [<em>option</em>...] [depends|executes|files|runfiles|texmfdbs|all]</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#tlmgr-conf" accesskey="6">tlmgr conf</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#tlmgr-dump_002dtlpdb-_005boption_002e_002e_002e_005d-_005b_002d_002djson_005d" accesskey="7">tlmgr dump-tlpdb [<em>option</em>...] [--json]</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#tlmgr-generate" accesskey="8">tlmgr generate</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#tlmgr-gui" accesskey="9">tlmgr gui</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#tlmgr-info">tlmgr info</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#tlmgr-init_002dusertree">tlmgr init-usertree</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#tlmgr-install-_005boption_002e_002e_002e_005d-pkg_002e_002e_002e">tlmgr install [<em>option</em>...] <em>pkg</em>...</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#tlmgr-key">tlmgr key</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#tlmgr-list">tlmgr list</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#tlmgr-option">tlmgr option</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#tlmgr-paper">tlmgr paper</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#tlmgr-path">tlmgr path</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#tlmgr-pinning">tlmgr pinning</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#tlmgr-platform">tlmgr platform</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#tlmgr-postaction">tlmgr postaction</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#tlmgr-print_002dplatform">tlmgr print-platform</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#tlmgr-print_002dplatform_002dinfo">tlmgr print-platform-info</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#tlmgr-remove-_005boption_002e_002e_002e_005d-pkg_002e_002e_002e">tlmgr remove [<em>option</em>...] <em>pkg</em>...</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#tlmgr-repository">tlmgr repository</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#tlmgr-restore">tlmgr restore</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#tlmgr-search">tlmgr search</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#tlmgr-shell">tlmgr shell</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#tlmgr-show">tlmgr show</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#tlmgr-uninstall">tlmgr uninstall</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#tlmgr-update-_005boption_002e_002e_002e_005d-_005bpkg_002e_002e_002e_005d">tlmgr update [<em>option</em>...] [<em>pkg</em>...]</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
</table>

<hr>
<span id="tlmgr-help"></span><div class="header">
<p>
Next: <a href="#tlmgr-version" accesskey="n" rel="next">tlmgr version</a>, Up: <a href="#tlmgr-ACTIONS" accesskey="u" rel="up">tlmgr ACTIONS</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="help"></span><h4 class="appendixsubsec">B.6.1 help</h4>

<p>Display this help information and exit (same as <code>--help</code>, and on the
web at <a href="https://tug.org/texlive/doc/tlmgr.html">https://tug.org/texlive/doc/tlmgr.html</a>).  Sometimes the
<code>perldoc</code> and/or <code>PAGER</code> programs on the system have problems,
resulting in control characters being literally output.  This can&rsquo;t
always be detected, but you can set the <code>NOPERLDOC</code> environment
variable and <code>perldoc</code> will not be used.
</p>
<hr>
<span id="tlmgr-version"></span><div class="header">
<p>
Next: <a href="#tlmgr-backup" accesskey="n" rel="next">tlmgr backup</a>, Previous: <a href="#tlmgr-help" accesskey="p" rel="prev">tlmgr help</a>, Up: <a href="#tlmgr-ACTIONS" accesskey="u" rel="up">tlmgr ACTIONS</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="version"></span><h4 class="appendixsubsec">B.6.2 version</h4>

<p>Gives version information (same as <code>--version</code>).
</p>
<p>If <code>-v</code> has been given the revisions of the used modules are reported, too.
</p>
<hr>
<span id="tlmgr-backup"></span><div class="header">
<p>
Next: <a href="#tlmgr-candidates-pkg" accesskey="n" rel="next">tlmgr candidates <em>pkg</em></a>, Previous: <a href="#tlmgr-version" accesskey="p" rel="prev">tlmgr version</a>, Up: <a href="#tlmgr-ACTIONS" accesskey="u" rel="up">tlmgr ACTIONS</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="backup"></span><h4 class="appendixsubsec">B.6.3 backup</h4>

<dl compact="compact">
<dt><strong>backup [<em>option</em>...] &ndash;all</strong></dt>
<dd><span id="tlmgr-backup-_005boption_002e_002e_002e_005d-_002d_002dall"></span>
</dd>
<dt><strong>backup [<em>option</em>...] <em>pkg</em>...</strong></dt>
<dd><span id="tlmgr-backup-_005boption_002e_002e_002e_005d-pkg_002e_002e_002e"></span>
<p>If the <code>--clean</code> option is not specified, this action makes a backup of
the given packages, or all packages given <code>--all</code>. These backups are
saved to the value of the <code>--backupdir</code> option, if that is an existing
and writable directory. If <code>--backupdir</code> is not given, the <code>backupdir</code>
option setting in the TLPDB is used, if present. If both are missing, no
backups are made. (The installer sets <code>backupdir</code> to
<code>.../tlpkg/backups</code>, under the TL root installation directory, so it is
usually defined; see the <a href="#tlmgr-option">option</a> description for more information.)
</p>
<p>If the <code>--clean</code> option is specified, backups are pruned (removed)
instead of saved. The optional integer value <em>N</em> may be specified to
set the number of backups that will be retained when cleaning. If <code>N</code>
is not given, the value of the <code>autobackup</code> option is used. If both are
missing, an error is issued. For more details of backup pruning, see
the <code>option</code> action.
</p>
<p>Options:
</p>
<dl compact="compact">
<dt><strong>&ndash;backupdir</strong> <em>directory</em></dt>
<dd><span id="tlmgr-_002d_002dbackupdir-directory"></span>
<p>Overrides the <code>backupdir</code> option setting in the TLPDB.
The <em>directory</em> argument is required and must specify an existing,
writable directory where backups are to be placed.
</p>
</dd>
<dt><strong>&ndash;all</strong></dt>
<dd><span id="tlmgr-_002d_002dall"></span>
<p>If <code>--clean</code> is not specified, make a backup of all packages in the TeX
Live installation; this will take quite a lot of space and time.  If
<code>--clean</code> is specified, all packages are pruned.
</p>
</dd>
<dt><strong>&ndash;clean</strong>[=<em>N</em>]</dt>
<dd><span id="tlmgr-_002d_002dclean_005b_003dN_005d"></span>
<p>Instead of making backups, prune the backup directory of old backups, as
explained above. The optional integer argument <em>N</em> overrides the
<code>autobackup</code> option set in the TLPDB.  You must use <code>--all</code> or a list
of packages together with this option, as desired.
</p>
</dd>
<dt><strong>&ndash;dry-run</strong></dt>
<dd><span id="tlmgr-_002d_002ddry_002drun"></span>
<p>Nothing is actually backed up or removed; instead, the actions to be
performed are written to the terminal.
</p>
</dd>
</dl>

</dd>
</dl>

<hr>
<span id="tlmgr-candidates-pkg"></span><div class="header">
<p>
Next: <a href="#tlmgr-check-_005boption_002e_002e_002e_005d-_005bdepends_007cexecutes_007cfiles_007crunfiles_007ctexmfdbs_007call_005d" accesskey="n" rel="next">tlmgr check [<em>option</em>...] [depends|executes|files|runfiles|texmfdbs|all]</a>, Previous: <a href="#tlmgr-backup" accesskey="p" rel="prev">tlmgr backup</a>, Up: <a href="#tlmgr-ACTIONS" accesskey="u" rel="up">tlmgr ACTIONS</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="candidates-pkg"></span><h4 class="appendixsubsec">B.6.4 candidates <em>pkg</em></h4>

<p>Shows the available candidate repositories for package <em>pkg</em>.
See <a href="#tlmgr-MULTIPLE-REPOSITORIES">MULTIPLE REPOSITORIES</a> below.
</p>
<hr>
<span id="tlmgr-check-_005boption_002e_002e_002e_005d-_005bdepends_007cexecutes_007cfiles_007crunfiles_007ctexmfdbs_007call_005d"></span><div class="header">
<p>
Next: <a href="#tlmgr-conf" accesskey="n" rel="next">tlmgr conf</a>, Previous: <a href="#tlmgr-candidates-pkg" accesskey="p" rel="prev">tlmgr candidates <em>pkg</em></a>, Up: <a href="#tlmgr-ACTIONS" accesskey="u" rel="up">tlmgr ACTIONS</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="check-_005boption_002e_002e_002e_005d-_005bdepends_007cexecutes_007cfiles_007crunfiles_007ctexmfdbs_007call_005d"></span><h4 class="appendixsubsec">B.6.5 check [<em>option</em>...] [depends|executes|files|runfiles|texmfdbs|all]</h4>

<p>Execute one (or all) check(s) of the consistency of the installation.
If no problems are found, there will be no output. (To get a view of
what is being done, run <code>tlmgr -v check</code>.)
</p>
<dl compact="compact">
<dt><strong>depends</strong></dt>
<dd><span id="tlmgr-depends"></span>
<p>Lists those packages which occur as dependencies in an installed collection,
but are themselves not installed, and those packages which are not
contained in any collection.
</p>
<p>If you call <code>tlmgr check collections</code> this test will be carried out
instead since former versions for <code>tlmgr</code> called it that way.
</p>
</dd>
<dt><strong>executes</strong></dt>
<dd><span id="tlmgr-executes"></span>
<p>Check that the files referred to by <code>execute</code> directives in the TeX
Live Database are present.
</p>
</dd>
<dt><strong>files</strong></dt>
<dd><span id="tlmgr-files"></span>
<p>Checks that all files listed in the local TLPDB (<code>texlive.tlpdb</code>) are
actually present, and lists those missing.
</p>
</dd>
<dt><strong>runfiles</strong></dt>
<dd><span id="tlmgr-runfiles"></span>
<p>List those filenames that are occurring more than one time in the
runfiles sections, except for known duplicates.
</p>
</dd>
<dt><strong>texmfdbs</strong></dt>
<dd><span id="tlmgr-texmfdbs"></span>
<p>Checks related to the <code>ls-R</code> files. If you have defined new trees, or
changed the <code>TEXMF</code> or <code>TEXMFDBS</code> variables, it can&rsquo;t hurt to run
this. It checks that:
</p>
<dl compact="compact">
<dt>- all items in <code>TEXMFDBS</code> have the <code>!!</code> prefix.</dt>
<dd><span id="tlmgr-_002d-all-items-in-TEXMFDBS-have-the-_0021_0021-prefix_002e"></span>
</dd>
<dt>- all items in <code>TEXMFBDS</code> have an <code>ls-R</code> file (if they exist at all).</dt>
<dd><span id="tlmgr-_002d-all-items-in-TEXMFBDS-have-an-ls_002dR-file-_0028if-they-exist-at-all_0029_002e"></span>
</dd>
<dt>- all items in <code>TEXMF</code> with <code>!!</code> are listed in <code>TEXMFDBS</code>.</dt>
<dd><span id="tlmgr-_002d-all-items-in-TEXMF-with-_0021_0021-are-listed-in-TEXMFDBS_002e"></span>
</dd>
<dt>- all items in <code>TEXMF</code> with an <code>ls-R</code> file are listed in <code>TEXMFDBS</code>.</dt>
<dd><span id="tlmgr-_002d-all-items-in-TEXMF-with-an-ls_002dR-file-are-listed-in-TEXMFDBS_002e"></span>
</dd>
</dl>

</dd>
</dl>

<p>Options:
</p>
<dl compact="compact">
<dt><strong>&ndash;use-svn</strong></dt>
<dd><span id="tlmgr-_002d_002duse_002dsvn"></span>
<p>Use the output of <code>svn status</code> instead of listing the files; for
checking the TL development repository. (This is run nightly.)
</p>
</dd>
</dl>

<hr>
<span id="tlmgr-conf"></span><div class="header">
<p>
Next: <a href="#tlmgr-dump_002dtlpdb-_005boption_002e_002e_002e_005d-_005b_002d_002djson_005d" accesskey="n" rel="next">tlmgr dump-tlpdb [<em>option</em>...] [--json]</a>, Previous: <a href="#tlmgr-check-_005boption_002e_002e_002e_005d-_005bdepends_007cexecutes_007cfiles_007crunfiles_007ctexmfdbs_007call_005d" accesskey="p" rel="prev">tlmgr check [<em>option</em>...] [depends|executes|files|runfiles|texmfdbs|all]</a>, Up: <a href="#tlmgr-ACTIONS" accesskey="u" rel="up">tlmgr ACTIONS</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="conf"></span><h4 class="appendixsubsec">B.6.6 conf</h4>

<dl compact="compact">
<dt><strong>conf [texmf|tlmgr|updmap [&ndash;conffile <em>file</em>] [&ndash;delete] [<em>key</em> [<em>value</em>]]]</strong></dt>
<dd><span id="tlmgr-conf-_005btexmf_007ctlmgr_007cupdmap-_005b_002d_002dconffile-file_005d-_005b_002d_002ddelete_005d-_005bkey-_005bvalue_005d_005d_005d"></span>
</dd>
<dt><strong>conf auxtrees [&ndash;conffile <em>file</em>] [show|add|remove] [<em>value</em>]</strong></dt>
<dd><span id="tlmgr-conf-auxtrees-_005b_002d_002dconffile-file_005d-_005bshow_007cadd_007cremove_005d-_005bvalue_005d"></span>
<p>With only <code>conf</code>, show general configuration information for TeX Live,
including active configuration files, path settings, and more.  This is
like running <code>texconfig conf</code>, but works on all supported platforms.
</p>
<p>With one of <code>conf texmf</code>, <code>conf tlmgr</code>, or <code>conf updmap</code>, shows all
key/value pairs (i.e., all settings) as saved in <code>ROOT/texmf.cnf</code>, the
user-specific <code>tlmgr</code> configuration file (see below), or the first
found (via <code>kpsewhich</code>) <code>updmap.cfg</code> file, respectively.
</p>
<p>If <em>key</em> is given in addition, shows the value of only that <em>key</em> in
the respective file.  If option <em>&ndash;delete</em> is also given, the value in
the given configuration file is entirely removed (not just commented
out).
</p>
<p>If <em>value</em> is given in addition, <em>key</em> is set to <em>value</em> in the 
respective file.  <em>No error checking is done!</em>
</p>
<p>The <code>PATH</code> value shown by <code>conf</code> is as used by <code>tlmgr</code>.  The
directory in which the <code>tlmgr</code> executable is found is automatically
prepended to the PATH value inherited from the environment.
</p>
<p>Here is a practical example of changing configuration values. If the
execution of (some or all) system commands via <code>\write18</code> was left
enabled during installation, you can disable it afterwards:
</p>
<pre class="verbatim">  tlmgr conf texmf shell_escape 0
</pre>
<p>The subcommand <code>auxtrees</code> allows adding and removing arbitrary
additional texmf trees, completely under user control.  <code>auxtrees show</code>
shows the list of additional trees, <code>auxtrees add</code> <em>tree</em> adds a tree
to the list, and <code>auxtrees remove</code> <em>tree</em> removes a tree from the list
(if present). The trees should not contain an <code>ls-R</code> file (or files
will not be found if the <code>ls-R</code> becomes stale). This works by
manipulating the Kpathsea variable <code>TEXMFAUXTREES</code>, in (by default)
<code>ROOT/texmf.cnf</code>.  Example:
</p>
<pre class="verbatim">  tlmgr conf auxtrees add /quick/test/tree
  tlmgr conf auxtrees remove /quick/test/tree
</pre>
<p>In all cases the configuration file can be explicitly specified via the
option <code>--conffile</code> <em>file</em>, e.g., if you don&rsquo;t want to change the
system-wide configuration.
</p>
<p>Warning: The general facility for changing configuration values is here,
but tinkering with settings in this way is strongly discouraged.  Again,
no error checking on either keys or values is done, so any sort of
breakage is possible.
</p>
</dd>
</dl>

<hr>
<span id="tlmgr-dump_002dtlpdb-_005boption_002e_002e_002e_005d-_005b_002d_002djson_005d"></span><div class="header">
<p>
Next: <a href="#tlmgr-generate" accesskey="n" rel="next">tlmgr generate</a>, Previous: <a href="#tlmgr-conf" accesskey="p" rel="prev">tlmgr conf</a>, Up: <a href="#tlmgr-ACTIONS" accesskey="u" rel="up">tlmgr ACTIONS</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="dump_002dtlpdb-_005boption_002e_002e_002e_005d-_005b_002d_002djson_005d"></span><h4 class="appendixsubsec">B.6.7 dump-tlpdb [<em>option</em>...] [&ndash;json]</h4>

<p>Dump complete local or remote TLPDB to standard output, as-is.  The
output is analogous to the <code>--machine-readable</code> output; see
<a href="#tlmgr-MACHINE_002dREADABLE-OUTPUT">MACHINE-READABLE OUTPUT</a> section.
</p>
<p>Options:
</p>
<dl compact="compact">
<dt><strong>&ndash;local</strong></dt>
<dd><span id="tlmgr-_002d_002dlocal"></span>
<p>Dump the local TLPDB.
</p>
</dd>
<dt><strong>&ndash;remote</strong></dt>
<dd><span id="tlmgr-_002d_002dremote"></span>
<p>Dump the remote TLPDB.
</p>
</dd>
<dt><strong>&ndash;json</strong></dt>
<dd><span id="tlmgr-_002d_002djson"></span>
<p>Instead of dumping the actual content, the database is dumped as
JSON. For the format of JSON output see <code>tlpkg/doc/JSON-formats.txt</code>,
format definition <code>TLPDB</code>.
</p>
</dd>
</dl>

<p>Exactly one of <code>--local</code> and <code>--remote</code> must be given.
</p>
<p>In either case, the first line of the output specifies the repository
location, in this format:
</p>
<pre class="verbatim">  &quot;location-url&quot; &quot;\t&quot; location
</pre>
<p>where <code>location-url</code> is the literal field name, followed by a tab, and
<em>location</em> is the file or url to the repository.
</p>
<p>Line endings may be either LF or CRLF depending on the current platform.
</p>
<hr>
<span id="tlmgr-generate"></span><div class="header">
<p>
Next: <a href="#tlmgr-gui" accesskey="n" rel="next">tlmgr gui</a>, Previous: <a href="#tlmgr-dump_002dtlpdb-_005boption_002e_002e_002e_005d-_005b_002d_002djson_005d" accesskey="p" rel="prev">tlmgr dump-tlpdb [<em>option</em>...] [--json]</a>, Up: <a href="#tlmgr-ACTIONS" accesskey="u" rel="up">tlmgr ACTIONS</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="generate"></span><h4 class="appendixsubsec">B.6.8 generate</h4>

<dl compact="compact">
<dt><strong>generate [<em>option</em>...] language</strong></dt>
<dd><span id="tlmgr-generate-_005boption_002e_002e_002e_005d-language"></span>
</dd>
<dt><strong>generate [<em>option</em>...] language.dat</strong></dt>
<dd><span id="tlmgr-generate-_005boption_002e_002e_002e_005d-language_002edat"></span>
</dd>
<dt><strong>generate [<em>option</em>...] language.def</strong></dt>
<dd><span id="tlmgr-generate-_005boption_002e_002e_002e_005d-language_002edef"></span>
</dd>
<dt><strong>generate [<em>option</em>...] language.dat.lua</strong></dt>
<dd><span id="tlmgr-generate-_005boption_002e_002e_002e_005d-language_002edat_002elua"></span>
</dd>
</dl>

<p>The <code>generate</code> action overwrites any manual changes made in the
respective files: it recreates them from scratch based on the
information of the installed packages, plus local adaptions.
The TeX Live installer and <code>tlmgr</code> routinely call <code>generate</code> for
all of these files.
</p>
<p>For managing your own fonts, please read the <code>updmap --help</code>
information and/or <a href="https://tug.org/fonts/fontinstall.html">https://tug.org/fonts/fontinstall.html</a>.
</p>
<p>For managing your own formats, please read the <code>fmtutil --help</code>
information.
</p>
<p>In more detail: <code>generate</code> remakes any of the configuration files
<code>language.dat</code>, <code>language.def</code>, and <code>language.dat.lua</code>
from the information present in the local TLPDB, plus
locally-maintained files.
</p>
<p>The locally-maintained files are <code>language-local.dat</code>,
<code>language-local.def</code>, or <code>language-local.dat.lua</code>,
searched for in <code>TEXMFLOCAL</code> in the respective
directories.  If local additions are present, the final file is made by
starting with the main file, omitting any entries that the local file
specifies to be disabled, and finally appending the local file.
</p>
<p>(Historical note: The formerly supported <code>updmap-local.cfg</code> and
<code>fmtutil-local.cnf</code> are no longer read, since <code>updmap</code> and <code>fmtutil</code>
now reads and supports multiple configuration files.  Thus,
local additions can and should be put into an <code>updmap.cfg</code> of <code>fmtutil.cnf</code>
file in <code>TEXMFLOCAL</code>.  The <code>generate updmap</code> and <code>generate fmtutil</code> actions
no longer exist.)
</p>
<p>Local files specify entries to be disabled with a comment line, namely
one of these:
</p>
<pre class="verbatim">  %!NAME
  --!NAME
</pre>
<p>where <code>language.dat</code> and <code>language.def</code> use <code>%</code>, 
and <code>language.dat.lua</code> use <code>--</code>.  In all cases, the <em>name</em> is
the respective format name or hyphenation pattern identifier.
Examples:
</p>
<pre class="verbatim">  %!german
  --!usenglishmax
</pre>
<p>(Of course, you&rsquo;re not likely to actually want to disable those
particular items.  They&rsquo;re just examples.)
</p>
<p>After such a disabling line, the local file can include another entry
for the same item, if a different definition is desired.  In general,
except for the special disabling lines, the local files follow the same
syntax as the master files.
</p>
<p>The form <code>generate language</code> recreates all three files <code>language.dat</code>,
<code>language.def</code>, and <code>language.dat.lua</code>, while the forms with an
extension recreates only that given language file.
</p>
<p>Options:
</p>
<dl compact="compact">
<dt><strong>&ndash;dest</strong> <em>output_file</em></dt>
<dd><span id="tlmgr-_002d_002ddest-output_005ffile"></span>
<p>specifies the output file (defaults to the respective location in
<code>TEXMFSYSVAR</code>).  If <code>--dest</code> is given to <code>generate language</code>, it
serves as a basename onto which <code>.dat</code> will be appended for the name of
the <code>language.dat</code> output file, <code>.def</code> will be appended to the value
for the name of the <code>language.def</code> output file, and <code>.dat.lua</code> to the
name of the <code>language.dat.lua</code> file.  (This is just to avoid
overwriting; if you want a specific name for each output file, we
recommend invoking <code>tlmgr</code> twice.)
</p>
</dd>
<dt><strong>&ndash;localcfg</strong> <em>local_conf_file</em></dt>
<dd><span id="tlmgr-_002d_002dlocalcfg-local_005fconf_005ffile"></span>
<p>specifies the (optional) local additions (defaults to the respective
location in <code>TEXMFLOCAL</code>).
</p>
</dd>
<dt><strong>&ndash;rebuild-sys</strong></dt>
<dd><span id="tlmgr-_002d_002drebuild_002dsys"></span>
<p>tells <code>tlmgr</code> to run necessary programs after config files have been
regenerated. These are:
<code>fmtutil-sys --all</code> after <code>generate fmtutil</code>,
<code>fmtutil-sys --byhyphen .../language.dat</code> after <code>generate language.dat</code>,
and
<code>fmtutil-sys --byhyphen .../language.def</code> after <code>generate language.def</code>.
</p>
<p>These subsequent calls cause the newly-generated files to actually take
effect.  This is not done by default since those calls are lengthy
processes and one might want to made several related changes in
succession before invoking these programs.
</p>
</dd>
</dl>

<p>The respective locations are as follows:
</p>
<pre class="verbatim">  tex/generic/config/language.dat (and language-local.dat)
  tex/generic/config/language.def (and language-local.def)
  tex/generic/config/language.dat.lua (and language-local.dat.lua)
</pre>
<hr>
<span id="tlmgr-gui"></span><div class="header">
<p>
Next: <a href="#tlmgr-info" accesskey="n" rel="next">tlmgr info</a>, Previous: <a href="#tlmgr-generate" accesskey="p" rel="prev">tlmgr generate</a>, Up: <a href="#tlmgr-ACTIONS" accesskey="u" rel="up">tlmgr ACTIONS</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="gui"></span><h4 class="appendixsubsec">B.6.9 gui</h4>

<p>Start the graphical user interface. See <strong>GUI</strong> below.
</p>
<hr>
<span id="tlmgr-info"></span><div class="header">
<p>
Next: <a href="#tlmgr-init_002dusertree" accesskey="n" rel="next">tlmgr init-usertree</a>, Previous: <a href="#tlmgr-gui" accesskey="p" rel="prev">tlmgr gui</a>, Up: <a href="#tlmgr-ACTIONS" accesskey="u" rel="up">tlmgr ACTIONS</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="info"></span><h4 class="appendixsubsec">B.6.10 info</h4>

<dl compact="compact">
<dt><strong>info [<em>option</em>...] <em>pkg</em>...</strong></dt>
<dd><span id="tlmgr-info-_005boption_002e_002e_002e_005d-pkg_002e_002e_002e"></span>
</dd>
<dt><strong>info [<em>option</em>...] collections</strong></dt>
<dd><span id="tlmgr-info-_005boption_002e_002e_002e_005d-collections"></span>
</dd>
<dt><strong>info [<em>option</em>...] schemes</strong></dt>
<dd><span id="tlmgr-info-_005boption_002e_002e_002e_005d-schemes"></span>
<p>With no argument, lists all packages available at the package
repository, prefixing those already installed with <code>i</code>.
</p>
<p>With the single word <code>collections</code> or <code>schemes</code> as the argument, lists
the request type instead of all packages.
</p>
<p>With any other arguments, display information about <em>pkg</em>: the name,
category, short and long description, sizes, installation status, and TeX Live
revision number.  If <em>pkg</em> is not locally installed, searches in the
remote installation source.
</p>
<p>For normal packages (not collections or schemes), the sizes of the four
groups of files (run/src/doc/bin files) are shown separately. For
collections, the cumulative size is shown, including all
directly-dependent packages (but not dependent collections). For
schemes, the cumulative size is also shown, including all
directly-dependent collections and packages.
</p>
<p>If <em>pkg</em> is not found locally or remotely, the search action is used
and lists matching packages and files.
</p>
<p>It also displays information taken from the TeX Catalogue, namely the
package version, date, and license.  Consider these, especially the
package version, as approximations only, due to timing skew of the
updates of the different pieces.  By contrast, the <code>revision</code> value
comes directly from TL and is reliable.
</p>
<p>The former actions <code>show</code> and <code>list</code> are merged into this action,
but are still supported for backward compatibility.
</p>
<p>Options:
</p>
<dl compact="compact">
<dt><strong>&ndash;list</strong></dt>
<dd><span id="tlmgr-_002d_002dlist"></span>
<p>If the option <code>--list</code> is given with a package, the list of contained
files is also shown, including those for platform-specific dependencies.
When given with schemes and collections, <code>--list</code> outputs their
dependencies in a similar way.
</p>
</dd>
<dt><strong>&ndash;only-installed</strong></dt>
<dd><span id="tlmgr-_002d_002donly_002dinstalled"></span>
<p>If this option is given, the installation source will not be used; only
locally installed packages, collections, or schemes are listed.
</p>
</dd>
<dt><strong>&ndash;only-remote</strong></dt>
<dd><span id="tlmgr-_002d_002donly_002dremote"></span>
<p>Only list packages from the remote repository. Useful when checking what
is available in a remote repository using
<code>tlmgr --repo ... --only-remote info</code>. Note that
<code>--only-installed</code> and <code>--only-remote</code> cannot both be specified.
</p>
</dd>
<dt><strong>&ndash;data <code>item1,item2,...</code></strong></dt>
<dd><span id="tlmgr-_002d_002ddata-item1_002citem2_002c_002e_002e_002e"></span>
<p>If the option <code>--data</code> is given, its argument must be a comma separated
list of field names from: <code>name</code>, <code>category</code>, <code>localrev</code>, <code>remoterev</code>,
<code>shortdesc</code>, <code>longdesc</code>, <code>installed</code>, <code>size</code>, <code>relocatable</code>, <code>depends</code>,
<code>cat-version</code>, <code>cat-date</code>, or <code>cat-license</code>. In this case the requested
packages&rsquo; information is listed in CSV format one package per line, and the
column information is given by the <code>itemN</code>. The <code>depends</code> column contains
the name of all dependencies separated by <code>:</code>.
</p>
</dd>
<dt><strong>&ndash;json</strong></dt>
<dd><span id="tlmgr-_002d_002djson-1"></span>
<p>In case <code>--json</code> is specified, the output is a
JSON encoded array where each array element is the JSON representation of
a single <code>TLPOBJ</code> but with additional information. For details see
<code>tlpkg/doc/JSON-formats.txt</code>, format definition: <code>TLPOBJINFO</code>.
If both <code>--json</code> and <code>--data</code> are given, <code>--json</code> takes precedence.
</p>
</dd>
</dl>

</dd>
</dl>

<hr>
<span id="tlmgr-init_002dusertree"></span><div class="header">
<p>
Next: <a href="#tlmgr-install-_005boption_002e_002e_002e_005d-pkg_002e_002e_002e" accesskey="n" rel="next">tlmgr install [<em>option</em>...] <em>pkg</em>...</a>, Previous: <a href="#tlmgr-info" accesskey="p" rel="prev">tlmgr info</a>, Up: <a href="#tlmgr-ACTIONS" accesskey="u" rel="up">tlmgr ACTIONS</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="init_002dusertree"></span><h4 class="appendixsubsec">B.6.11 init-usertree</h4>

<p>Sets up a texmf tree for so-called user mode management, either the
default user tree (<code>TEXMFHOME</code>), or one specified on the command line
with <code>--usertree</code>.  See <a href="#tlmgr-USER-MODE">USER MODE</a> below.
</p>
<hr>
<span id="tlmgr-install-_005boption_002e_002e_002e_005d-pkg_002e_002e_002e"></span><div class="header">
<p>
Next: <a href="#tlmgr-key" accesskey="n" rel="next">tlmgr key</a>, Previous: <a href="#tlmgr-init_002dusertree" accesskey="p" rel="prev">tlmgr init-usertree</a>, Up: <a href="#tlmgr-ACTIONS" accesskey="u" rel="up">tlmgr ACTIONS</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="install-_005boption_002e_002e_002e_005d-pkg_002e_002e_002e"></span><h4 class="appendixsubsec">B.6.12 install [<em>option</em>...] <em>pkg</em>...</h4>

<p>Install each <em>pkg</em> given on the command line, if it is not already
installed.  It does not touch existing packages; see the <code>update</code>
action for how to get the latest version of a package.
</p>
<p>By default this also installs all packages on which the given <em>pkg</em>s are
dependent.  Options:
</p>
<dl compact="compact">
<dt><strong>&ndash;dry-run</strong></dt>
<dd><span id="tlmgr-_002d_002ddry_002drun-1"></span>
<p>Nothing is actually installed; instead, the actions to be performed are
written to the terminal.
</p>
</dd>
<dt><strong>&ndash;file</strong></dt>
<dd><span id="tlmgr-_002d_002dfile"></span>
<p>Instead of fetching a package from the installation repository, use
the package files given on the command line.  These files must
be standard TeX Live package files (with contained tlpobj file).
</p>
</dd>
<dt><strong>&ndash;force</strong></dt>
<dd><span id="tlmgr-_002d_002dforce"></span>
<p>If updates to <code>tlmgr</code> itself (or other parts of the basic
infrastructure) are present, <code>tlmgr</code> will bail out and not perform the
installation unless this option is given.  Not recommended.
</p>
</dd>
<dt><strong>&ndash;no-depends</strong></dt>
<dd><span id="tlmgr-_002d_002dno_002ddepends"></span>
<p>Do not install dependencies.  (By default, installing a package ensures
that all dependencies of this package are fulfilled.)
</p>
</dd>
<dt><strong>&ndash;no-depends-at-all</strong></dt>
<dd><span id="tlmgr-_002d_002dno_002ddepends_002dat_002dall"></span>
<p>Normally, when you install a package which ships binary files the
respective binary package will also be installed.  That is, for a
package <code>foo</code>, the package <code>foo.i386-linux</code> will also be installed on
an <code>i386-linux</code> system.  This option suppresses this behavior, and also
implies <code>--no-depends</code>.  Don&rsquo;t use it unless you are sure of what you
are doing.
</p>
</dd>
<dt><strong>&ndash;reinstall</strong></dt>
<dd><span id="tlmgr-_002d_002dreinstall"></span>
<p>Reinstall a package (including dependencies for collections) even if it
already seems to be installed (i.e, is present in the TLPDB).  This is
useful to recover from accidental removal of files in the hierarchy.
</p>
<p>When re-installing, only dependencies on normal packages are followed
(i.e., not those of category Scheme or Collection).
</p>
</dd>
<dt><strong>&ndash;with-doc</strong></dt>
<dd><span id="tlmgr-_002d_002dwith_002ddoc"></span>
</dd>
<dt><strong>&ndash;with-src</strong></dt>
<dd><span id="tlmgr-_002d_002dwith_002dsrc"></span>
<p>While not recommended, the <code>install-tl</code> program provides an option to
omit installation of all documentation and/or source files.  (By
default, everything is installed.)  After such an installation, you may
find that you want the documentation or source files for a given package
after all.  You can get them by using these options in conjunction with
<code>--reinstall</code>, as in (using the <code>fontspec</code> package as the example):
</p>
<pre class="verbatim">  tlmgr install --reinstall --with-doc --with-src fontspec
</pre>
</dd>
</dl>

<p>This action does not automatically add new symlinks in system
directories; you need to run <code>tlmgr path add</code> (<a href="#tlmgr-path">path</a>) yourself if
you are using this feature and want new symlinks added.
</p>
<hr>
<span id="tlmgr-key"></span><div class="header">
<p>
Next: <a href="#tlmgr-list" accesskey="n" rel="next">tlmgr list</a>, Previous: <a href="#tlmgr-install-_005boption_002e_002e_002e_005d-pkg_002e_002e_002e" accesskey="p" rel="prev">tlmgr install [<em>option</em>...] <em>pkg</em>...</a>, Up: <a href="#tlmgr-ACTIONS" accesskey="u" rel="up">tlmgr ACTIONS</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="key"></span><h4 class="appendixsubsec">B.6.13 key</h4>

<dl compact="compact">
<dt><strong>key list</strong></dt>
<dd><span id="tlmgr-key-list"></span>
</dd>
<dt><strong>key add <em>file</em></strong></dt>
<dd><span id="tlmgr-key-add-file"></span>
</dd>
<dt><strong>key remove <em>keyid</em></strong></dt>
<dd><span id="tlmgr-key-remove-keyid"></span>
<p>The action <code>key</code> allows listing, adding and removing additional GPG
keys to the set of trusted keys, that is, those that are used to verify
the TeX Live databases.
</p>
<p>With the <code>list</code> argument, <code>key</code> lists all keys.
</p>
<p>The <code>add</code> argument requires another argument, either a filename or
<code>-</code> for stdin, from which the key is added. The key is added to the
local keyring <code>GNUPGHOME/repository-keys.gpg</code>, which is normally
<code>tlpkg/gpg/repository-keys.gpg</code>.
</p>
<p>The <code>remove</code> argument requires a key id and removes the requested id
from the local keyring.
</p>
</dd>
</dl>

<hr>
<span id="tlmgr-list"></span><div class="header">
<p>
Next: <a href="#tlmgr-option" accesskey="n" rel="next">tlmgr option</a>, Previous: <a href="#tlmgr-key" accesskey="p" rel="prev">tlmgr key</a>, Up: <a href="#tlmgr-ACTIONS" accesskey="u" rel="up">tlmgr ACTIONS</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="list"></span><h4 class="appendixsubsec">B.6.14 list</h4>

<p>Synonym for <a href="#tlmgr-info">info</a>.
</p>
<hr>
<span id="tlmgr-option"></span><div class="header">
<p>
Next: <a href="#tlmgr-paper" accesskey="n" rel="next">tlmgr paper</a>, Previous: <a href="#tlmgr-list" accesskey="p" rel="prev">tlmgr list</a>, Up: <a href="#tlmgr-ACTIONS" accesskey="u" rel="up">tlmgr ACTIONS</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="option"></span><h4 class="appendixsubsec">B.6.15 option</h4>

<dl compact="compact">
<dt><strong>option [&ndash;json] [show]</strong></dt>
<dd><span id="tlmgr-option-_005b_002d_002djson_005d-_005bshow_005d"></span>
</dd>
<dt><strong>option [&ndash;json] showall|help</strong></dt>
<dd><span id="tlmgr-option-_005b_002d_002djson_005d-showall_007chelp"></span>
</dd>
<dt><strong>option <em>key</em> [<em>value</em>]</strong></dt>
<dd><span id="tlmgr-option-key-_005bvalue_005d"></span>
</dd>
</dl>

<p>The first form, <code>show</code>, shows the global TeX Live settings currently
saved in the TLPDB with a short description and the <code>key</code> used for
changing it in parentheses.
</p>
<p>The second form, <code>showall</code>, is similar, but also shows options which
can be defined but are not currently set to any value (<code>help</code> is a
synonym).
</p>
<p>Both <code>show...</code> forms take an option <code>--json</code>, which dumps the option
information in JSON format.  In this case, both forms dump the same
data. For the format of the JSON output see
<code>tlpkg/doc/JSON-formats.txt</code>, format definition <code>TLOPTION</code>.
</p>
<p>In the third form, with <em>key</em>, if <em>value</em> is not given, the setting
for <em>key</em> is displayed.  If <em>value</em> is present, <em>key</em> is set to
<em>value</em>.
</p>
<p>Possible values for <em>key</em> are (run <code>tlmgr option showall</code> for
the definitive list):
</p>
<pre class="verbatim"> repository (default package repository),
 formats    (generate formats at installation or update time),
 postcode   (run postinst code blobs)
 docfiles   (install documentation files),
 srcfiles   (install source files),
 backupdir  (default directory for backups),
 autobackup (number of backups to keep).
 sys_bin    (directory to which executables are linked by the path action)
 sys_man    (directory to which man pages are linked by the path action)
 sys_info   (directory to which Info files are linked by the path action)
 desktop_integration (Windows-only: create Start menu shortcuts)
 fileassocs (Windows-only: change file associations)
 multiuser  (Windows-only: install for all users)
</pre>
<p>One common use of <code>option</code> is to permanently change the installation to
get further updates from the Internet, after originally installing from
DVD.  To do this, you can run
</p>
<pre class="verbatim"> tlmgr option repository http://mirror.ctan.org/systems/texlive/tlnet
</pre>
<p>The <code>install-tl</code> documentation has more information about the possible
values for <code>repository</code>.  (For backward compatibility, <code>location</code> can
be used as a synonym for <code>repository</code>.)
</p>
<p>If <code>formats</code> is set (this is the default), then formats are regenerated
when either the engine or the format files have changed.  Disable this
only when you know how and want to regenerate formats yourself whenever
needed (which is often, in practice).
</p>
<p>The <code>postcode</code> option controls execution of per-package
postinstallation action code.  It is set by default, and again disabling
is not likely to be of interest except to developers doing debugging.
</p>
<p>The <code>docfiles</code> and <code>srcfiles</code> options control the installation of
their respective file groups (documentation, sources; grouping is
approximate) per package. By default both are enabled (1).  Either or
both can be disabled (set to 0) if disk space is limited or for minimal
testing installations, etc.  When disabled, the respective files are not
downloaded at all.
</p>
<p>The options <code>autobackup</code> and <code>backupdir</code> determine the defaults for
the actions <code>update</code>, <code>backup</code> and <code>restore</code>. These three actions
need a directory in which to read or write the backups. If
<code>--backupdir</code> is not specified on the command line, the <code>backupdir</code>
option value is used (if set). The TL installer sets <code>backupdir</code> to
<code>.../tlpkg/backups</code>, under the TL root installation directory.
</p>
<p>The <code>autobackup</code> option (de)activates automatic generation of backups.
Its value is an integer.  If the <code>autobackup</code> value is <code>-1</code>, no
backups are removed.  If <code>autobackup</code> is 0 or more, it specifies the
number of backups to keep.  Thus, backups are disabled if the value is
0.  In the <code>--clean</code> mode of the <code>backup</code> action this option also
specifies the number to be kept.  The default value is 1, so that
backups are made, but only one backup is kept.
</p>
<p>To setup <code>autobackup</code> to <code>-1</code> on the command line, use:
</p>
<pre class="verbatim">  tlmgr option -- autobackup -1
</pre>
<p>The <code>--</code> avoids having the <code>-1</code> treated as an option.  (The <code>--</code>
stops parsing for options at the point where it appears; this is a
general feature across most Unix programs.)
</p>
<p>The <code>sys_bin</code>, <code>sys_man</code>, and <code>sys_info</code> options are used on Unix
systems to control the generation of links for executables, Info files
and man pages. See the <code>path</code> action for details.
</p>
<p>The last three options affect behavior on Windows installations.  If
<code>desktop_integration</code> is set, then some packages will install items in
a sub-folder of the Start menu for <code>tlmgr gui</code>, documentation, etc.  If
<code>fileassocs</code> is set, Windows file associations are made (see also the
<code>postaction</code> action).  Finally, if <code>multiuser</code> is set, then adaptions
to the registry and the menus are done for all users on the system
instead of only the current user.  All three options are on by default.
</p>
<hr>
<span id="tlmgr-paper"></span><div class="header">
<p>
Next: <a href="#tlmgr-path" accesskey="n" rel="next">tlmgr path</a>, Previous: <a href="#tlmgr-option" accesskey="p" rel="prev">tlmgr option</a>, Up: <a href="#tlmgr-ACTIONS" accesskey="u" rel="up">tlmgr ACTIONS</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="paper"></span><h4 class="appendixsubsec">B.6.16 paper</h4>

<dl compact="compact">
<dt><strong>paper [a4|letter]</strong></dt>
<dd><span id="tlmgr-paper-_005ba4_007cletter_005d"></span>
</dd>
<dt><strong>&lt;[xdvi|pdftex|dvips|dvipdfmx|context|psutils] paper [<em>papersize</em>|&ndash;list]</strong>&gt;</dt>
<dd><span id="tlmgr-_003c_005bxdvi_007cpdftex_007cdvips_007cdvipdfmx_007ccontext_007cpsutils_005d-paper-_005bpapersize_007c_002d_002dlist_005d_003e"></span>
</dd>
<dt><strong>paper &ndash;json</strong></dt>
<dd><span id="tlmgr-paper-_002d_002djson"></span>
</dd>
</dl>

<p>With no arguments (<code>tlmgr paper</code>), shows the default paper size setting
for all known programs.
</p>
<p>With one argument (e.g., <code>tlmgr paper a4</code>), sets the default for all
known programs to that paper size.
</p>
<p>With a program given as the first argument and no paper size specified
(e.g., <code>tlmgr dvips paper</code>), shows the default paper size for that
program.
</p>
<p>With a program given as the first argument and a paper size as the last
argument (e.g., <code>tlmgr dvips paper a4</code>), set the default for that
program to that paper size.
</p>
<p>With a program given as the first argument and <code>--list</code> given as the
last argument (e.g., <code>tlmgr dvips paper --list</code>), shows all valid paper
sizes for that program.  The first size shown is the default.
</p>
<p>If <code>--json</code> is specified without other options, the paper setup is
dumped in JSON format. For the format of JSON output see
<code>tlpkg/doc/JSON-formats.txt</code>, format definition <code>TLPAPER</code>.
</p>
<p>Incidentally, this syntax of having a specific program name before the
<code>paper</code> keyword is unusual.  It is inherited from the longstanding
<code>texconfig</code> script, which supports other configuration settings for
some programs, notably <code>dvips</code>.  <code>tlmgr</code> does not support those extra
settings.
</p>
<hr>
<span id="tlmgr-path"></span><div class="header">
<p>
Next: <a href="#tlmgr-pinning" accesskey="n" rel="next">tlmgr pinning</a>, Previous: <a href="#tlmgr-paper" accesskey="p" rel="prev">tlmgr paper</a>, Up: <a href="#tlmgr-ACTIONS" accesskey="u" rel="up">tlmgr ACTIONS</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="path"></span><h4 class="appendixsubsec">B.6.17 path</h4>

<dl compact="compact">
<dt><strong>path [&ndash;w32mode=user|admin] add</strong></dt>
<dd><span id="tlmgr-path-_005b_002d_002dw32mode_003duser_007cadmin_005d-add"></span>
</dd>
<dt><strong>path [&ndash;w32mode=user|admin] remove</strong></dt>
<dd><span id="tlmgr-path-_005b_002d_002dw32mode_003duser_007cadmin_005d-remove"></span>
<p>On Unix, adds or removes symlinks for executables, man pages, and info
pages in the system directories specified by the respective options (see
the <a href="#tlmgr-option">option</a> description above). Does not change any initialization
files, either system or personal. Furthermore, any executables added or
removed by future updates are not taken care of automatically; this
command must be rerun as needed.
</p>
<p>On Windows, the registry part where the binary directory is added or
removed is determined in the following way:
</p>
<p>If the user has admin rights, and the option <code>--w32mode</code> is not given,
the setting <em>w32_multi_user</em> determines the location (i.e., if it is
on then the system path, otherwise the user path is changed).
</p>
<p>If the user has admin rights, and the option <code>--w32mode</code> is given, this
option determines the path to be adjusted.
</p>
<p>If the user does not have admin rights, and the option <code>--w32mode</code>
is not given, and the setting <em>w32_multi_user</em> is off, the user path
is changed, while if the setting <em>w32_multi_user</em> is on, a warning is
issued that the caller does not have enough privileges.
</p>
<p>If the user does not have admin rights, and the option <code>--w32mode</code>
is given, it must be <code>user</code> and the user path will be adjusted. If a
user without admin rights uses the option <code>--w32mode admin</code> a warning
is issued that the caller does not have enough privileges.
</p>
</dd>
</dl>

<hr>
<span id="tlmgr-pinning"></span><div class="header">
<p>
Next: <a href="#tlmgr-platform" accesskey="n" rel="next">tlmgr platform</a>, Previous: <a href="#tlmgr-path" accesskey="p" rel="prev">tlmgr path</a>, Up: <a href="#tlmgr-ACTIONS" accesskey="u" rel="up">tlmgr ACTIONS</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="pinning"></span><h4 class="appendixsubsec">B.6.18 pinning</h4>

<p>The <code>pinning</code> action manages the pinning file, see <a href="#tlmgr-Pinning">Pinning</a> below.
</p>
<dl compact="compact">
<dt><code>pinning show</code></dt>
<dd><span id="tlmgr-pinning-show"></span>
<p>Shows the current pinning data.
</p>
</dd>
<dt><code>pinning add</code> <em>repo</em> <em>pkgglob</em>...</dt>
<dd><span id="tlmgr-pinning-add-repo-pkgglob_002e_002e_002e"></span>
<p>Pins the packages matching the <em>pkgglob</em>(s) to the repository
<em>repo</em>.
</p>
</dd>
<dt><code>pinning remove</code> <em>repo</em> <em>pkgglob</em>...</dt>
<dd><span id="tlmgr-pinning-remove-repo-pkgglob_002e_002e_002e"></span>
<p>Any packages recorded in the pinning file matching the &lt;pkgglob&gt;s for
the given repository <em>repo</em> are removed.
</p>
</dd>
<dt><code>pinning remove <em>repo</em> --all</code></dt>
<dd><span id="tlmgr-pinning-remove-repo-_002d_002dall"></span>
<p>Remove all pinning data for repository <em>repo</em>.
</p>
</dd>
</dl>

<hr>
<span id="tlmgr-platform"></span><div class="header">
<p>
Next: <a href="#tlmgr-postaction" accesskey="n" rel="next">tlmgr postaction</a>, Previous: <a href="#tlmgr-pinning" accesskey="p" rel="prev">tlmgr pinning</a>, Up: <a href="#tlmgr-ACTIONS" accesskey="u" rel="up">tlmgr ACTIONS</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="platform"></span><h4 class="appendixsubsec">B.6.19 platform</h4>

<dl compact="compact">
<dt><strong>platform list|add|remove <em>platform</em>...</strong></dt>
<dd><span id="tlmgr-platform-list_007cadd_007cremove-platform_002e_002e_002e"></span>
</dd>
<dt><strong>platform set <em>platform</em></strong></dt>
<dd><span id="tlmgr-platform-set-platform"></span>
</dd>
<dt><strong>platform set auto</strong></dt>
<dd><span id="tlmgr-platform-set-auto"></span>
<p><code>platform list</code> lists the TeX Live names of all the platforms
(a.k.a. architectures), (<code>i386-linux</code>, ...) available at the package
repository.
</p>
<p><code>platform add</code> <em>platform</em>... adds the executables for each given platform
<em>platform</em> to the installation from the repository.
</p>
<p><code>platform remove</code> <em>platform</em>... removes the executables for each given 
platform <em>platform</em> from the installation, but keeps the currently 
running platform in any case.
</p>
<p><code>platform set</code> <em>platform</em> switches TeX Live to always use the given
platform instead of auto detection.
</p>
<p><code>platform set auto</code> switches TeX Live to auto detection mode for platform.
</p>
<p>Platform detection is needed to select the proper <code>xz</code> and 
<code>wget</code> binaries that are shipped with TeX Live.
</p>
<p><code>arch</code> is a synonym for <code>platform</code>.
</p>
<p>Options:
</p>
<dl compact="compact">
<dt><strong>&ndash;dry-run</strong></dt>
<dd><span id="tlmgr-_002d_002ddry_002drun-2"></span>
<p>Nothing is actually installed; instead, the actions to be performed are
written to the terminal.
</p>
</dd>
</dl>

</dd>
</dl>

<hr>
<span id="tlmgr-postaction"></span><div class="header">
<p>
Next: <a href="#tlmgr-print_002dplatform" accesskey="n" rel="next">tlmgr print-platform</a>, Previous: <a href="#tlmgr-platform" accesskey="p" rel="prev">tlmgr platform</a>, Up: <a href="#tlmgr-ACTIONS" accesskey="u" rel="up">tlmgr ACTIONS</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="postaction"></span><h4 class="appendixsubsec">B.6.20 postaction</h4>

<dl compact="compact">
<dt><strong>postaction [<em>option</em>...] install [shortcut|fileassoc|script] [<em>pkg</em>...]</strong></dt>
<dd><span id="tlmgr-postaction-_005boption_002e_002e_002e_005d-install-_005bshortcut_007cfileassoc_007cscript_005d-_005bpkg_002e_002e_002e_005d"></span>
</dd>
<dt><strong>postaction [<em>option</em>...] remove [shortcut|fileassoc|script] [<em>pkg</em>...]</strong></dt>
<dd><span id="tlmgr-postaction-_005boption_002e_002e_002e_005d-remove-_005bshortcut_007cfileassoc_007cscript_005d-_005bpkg_002e_002e_002e_005d"></span>
<p>Carry out the postaction <code>shortcut</code>, <code>fileassoc</code>, or <code>script</code> given
as the second required argument in install or remove mode (which is the
first required argument), for either the packages given on the command
line, or for all if <code>--all</code> is given.
</p>
<p>Options:
</p>
<dl compact="compact">
<dt><strong>&ndash;w32mode=[user|admin]</strong></dt>
<dd><span id="tlmgr-_002d_002dw32mode_003d_005buser_007cadmin_005d"></span>
<p>If the option <code>--w32mode</code> is given the value <code>user</code>, all actions will
only be carried out in the user-accessible parts of the
registry/filesystem, while the value <code>admin</code> selects the system-wide
parts of the registry for the file associations.  If you do not have
enough permissions, using <code>--w32mode=admin</code> will not succeed.
</p>
</dd>
<dt><strong>&ndash;fileassocmode=[1|2]</strong></dt>
<dd><span id="tlmgr-_002d_002dfileassocmode_003d_005b1_007c2_005d"></span>
<p><code>--fileassocmode</code> specifies the action for file associations.  If it is
set to 1 (the default), only new associations are added; if it is set to
2, all associations are set to the TeX Live programs.  (See also
<code>option fileassocs</code>.)
</p>
</dd>
<dt><strong>&ndash;all</strong></dt>
<dd><span id="tlmgr-_002d_002dall-1"></span>
<p>Carry out the postactions for all packages
</p>
</dd>
</dl>

</dd>
</dl>

<hr>
<span id="tlmgr-print_002dplatform"></span><div class="header">
<p>
Next: <a href="#tlmgr-print_002dplatform_002dinfo" accesskey="n" rel="next">tlmgr print-platform-info</a>, Previous: <a href="#tlmgr-postaction" accesskey="p" rel="prev">tlmgr postaction</a>, Up: <a href="#tlmgr-ACTIONS" accesskey="u" rel="up">tlmgr ACTIONS</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="print_002dplatform"></span><h4 class="appendixsubsec">B.6.21 print-platform</h4>

<p>Print the TeX Live identifier for the detected platform
(hardware/operating system) combination to standard output, and exit.
<code>--print-arch</code> is a synonym.
</p>
<hr>
<span id="tlmgr-print_002dplatform_002dinfo"></span><div class="header">
<p>
Next: <a href="#tlmgr-remove-_005boption_002e_002e_002e_005d-pkg_002e_002e_002e" accesskey="n" rel="next">tlmgr remove [<em>option</em>...] <em>pkg</em>...</a>, Previous: <a href="#tlmgr-print_002dplatform" accesskey="p" rel="prev">tlmgr print-platform</a>, Up: <a href="#tlmgr-ACTIONS" accesskey="u" rel="up">tlmgr ACTIONS</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="print_002dplatform_002dinfo"></span><h4 class="appendixsubsec">B.6.22 print-platform-info</h4>

<p>Print the TeX Live platform identifier, TL platform long name, and
original output from guess.
</p>
<hr>
<span id="tlmgr-remove-_005boption_002e_002e_002e_005d-pkg_002e_002e_002e"></span><div class="header">
<p>
Next: <a href="#tlmgr-repository" accesskey="n" rel="next">tlmgr repository</a>, Previous: <a href="#tlmgr-print_002dplatform_002dinfo" accesskey="p" rel="prev">tlmgr print-platform-info</a>, Up: <a href="#tlmgr-ACTIONS" accesskey="u" rel="up">tlmgr ACTIONS</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="remove-_005boption_002e_002e_002e_005d-pkg_002e_002e_002e"></span><h4 class="appendixsubsec">B.6.23 remove [<em>option</em>...] <em>pkg</em>...</h4>

<p>Remove each <em>pkg</em> specified.  Removing a collection removes all package
dependencies (unless <code>--no-depends</code> is specified), but not any
collection dependencies of that collection.  However, when removing a
package, dependencies are never removed.  Options:
</p>
<dl compact="compact">
<dt><strong>&ndash;all</strong></dt>
<dd><span id="tlmgr-_002d_002dall-2"></span>
<p>Uninstalls all of TeX Live, asking for confirmation unless <code>--force</code> is
also specified.
</p>
</dd>
<dt><strong>&ndash;backup</strong></dt>
<dd><span id="tlmgr-_002d_002dbackup"></span>
</dd>
<dt><strong>&ndash;backupdir</strong> <em>directory</em></dt>
<dd><span id="tlmgr-_002d_002dbackupdir-directory-1"></span>
<p>These options behave just as with the <a href="update.html#tlmgr-update-_005boption_002e_002e_002e_005d-_005b_002e_002e_002e_005d">(update)update</a> action (q.v.), except they apply to making
backups of packages before they are removed.  The default is to make
such a backup, that is, to save a copy of packages before removal.
</p>
<p>The <a href="#tlmgr-restore">restore</a> action explains how to restore from a backup.
</p>
</dd>
<dt><strong>&ndash;no-depends</strong></dt>
<dd><span id="tlmgr-_002d_002dno_002ddepends-1"></span>
<p>Do not remove dependent packages.
</p>
</dd>
<dt><strong>&ndash;no-depends-at-all</strong></dt>
<dd><span id="tlmgr-_002d_002dno_002ddepends_002dat_002dall-1"></span>
<p>See above under <a href="#tlmgr-install-_005boption_002e_002e_002e_005d-pkg_002e_002e_002e">install</a> (and beware).
</p>
</dd>
<dt><strong>&ndash;force</strong></dt>
<dd><span id="tlmgr-_002d_002dforce-1"></span>
<p>By default, removal of a package or collection that is a dependency of
another collection or scheme is not allowed.  With this option, the
package will be removed unconditionally.  Use with care.
</p>
<p>A package that has been removed using the <code>--force</code> option because it
is still listed in an installed collection or scheme will not be
updated, and will be mentioned as <code>forcibly removed</code> in the output of
<code>tlmgr update --list</code>.
</p>
</dd>
<dt><strong>&ndash;dry-run</strong></dt>
<dd><span id="tlmgr-_002d_002ddry_002drun-3"></span>
<p>Nothing is actually removed; instead, the actions to be performed are
written to the terminal.
</p>
</dd>
</dl>

<p>This action does not automatically remove symlinks to executables from
system directories; you need to run <code>tlmgr path remove</code> (<a href="#tlmgr-path">path</a>)
yourself if you are using this feature and want stale symlinks removed.
</p>
<hr>
<span id="tlmgr-repository"></span><div class="header">
<p>
Next: <a href="#tlmgr-restore" accesskey="n" rel="next">tlmgr restore</a>, Previous: <a href="#tlmgr-remove-_005boption_002e_002e_002e_005d-pkg_002e_002e_002e" accesskey="p" rel="prev">tlmgr remove [<em>option</em>...] <em>pkg</em>...</a>, Up: <a href="#tlmgr-ACTIONS" accesskey="u" rel="up">tlmgr ACTIONS</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="repository"></span><h4 class="appendixsubsec">B.6.24 repository</h4>

<dl compact="compact">
<dt><strong>repository list</strong></dt>
<dd><span id="tlmgr-repository-list"></span>
</dd>
<dt><strong>repository list <em>path|url|tag</em></strong></dt>
<dd><span id="tlmgr-repository-list-path_007curl_007ctag"></span>
</dd>
<dt><strong>repository add <em>path</em> [<em>tag</em>]</strong></dt>
<dd><span id="tlmgr-repository-add-path-_005btag_005d"></span>
</dd>
<dt><strong>repository remove <em>path|tag</em></strong></dt>
<dd><span id="tlmgr-repository-remove-path_007ctag"></span>
</dd>
<dt><strong>repository set <em>path</em>[#<em>tag</em>] [<em>path</em>[#<em>tag</em>] ...]</strong></dt>
<dd><span id="tlmgr-repository-set-path_005b_0023tag_005d-_005bpath_005b_0023tag_005d-_002e_002e_002e_005d"></span>
</dd>
<dt><strong>repository status</strong></dt>
<dd><span id="tlmgr-repository-status"></span>
<p>This action manages the list of repositories.  See <a href="MULTIPLE_REPOSITORIES.html#Top">(MULTIPLE_REPOSITORIES)</a> below for detailed explanations.
</p>
<p>The first form, <code>repository list</code>, lists all configured repositories
and the respective tags if set. If a path, url, or tag is given after
the <code>list</code> keyword, it is interpreted as the source from which to
initialize a TL database and lists the contained packages. This can also
be an otherwise-unused repository, either local or remote. If the option
<code>--with-platforms</code> is specified in addition, for each package the
available platforms (if any) are also listed.
</p>
<p>The form <code>repository add</code> adds a repository (optionally attaching a
tag) to the list of repositories, while <code>repository remove</code> removes a
repository, either by full path/url, or by tag.
</p>
<p>The form <code>repository set</code> sets the list of available repositories to
the items given on the command line, overwriting previous settings.
</p>
<p>The form <code>repository status</code> reports the verification status of the
loaded repositories with the format of one repository per line
with fields separated by a single space:
</p>
<dl compact="compact">
<dt>The tag (which can be the same as the url);</dt>
<dd><span id="tlmgr-The-tag-_0028which-can-be-the-same-as-the-url_0029_003b"></span>
<p>= the url;
</p>
<p>= iff machine-readable output is specified, the verification code (a
number);
</p>
<p>= a textual description of the verification status, as the last field
extending to the end of line.
</p>
</dd>
</dl>

<p>That is, in normal (not machine-readable) output, the third field
(numeric verification status) is not present.
</p>
<p>In all cases, one of the repositories must be tagged as <code>main</code>;
otherwise, all operations will fail!
</p>
</dd>
</dl>

<hr>
<span id="tlmgr-restore"></span><div class="header">
<p>
Next: <a href="#tlmgr-search" accesskey="n" rel="next">tlmgr search</a>, Previous: <a href="#tlmgr-repository" accesskey="p" rel="prev">tlmgr repository</a>, Up: <a href="#tlmgr-ACTIONS" accesskey="u" rel="up">tlmgr ACTIONS</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="restore"></span><h4 class="appendixsubsec">B.6.25 restore</h4>

<dl compact="compact">
<dt><strong>restore [<em>option</em>...] <em>pkg</em> [<em>rev</em>]</strong></dt>
<dd><span id="tlmgr-restore-_005boption_002e_002e_002e_005d-pkg-_005brev_005d"></span>
</dd>
<dt><strong>restore [<em>option</em>...] &ndash;all</strong></dt>
<dd><span id="tlmgr-restore-_005boption_002e_002e_002e_005d-_002d_002dall"></span>
<p>Restore a package from a previously-made backup.
</p>
<p>If <code>--all</code> is given, try to restore the latest revision of all 
package backups found in the backup directory.
</p>
<p>Otherwise, if neither <em>pkg</em> nor <em>rev</em> are given, list the available
backup revisions for all packages.  With <em>pkg</em> given but no <em>rev</em>,
list all available backup revisions of <em>pkg</em>.
</p>
<p>When listing available packages, <code>tlmgr</code> shows the revision, and in
parenthesis the creation time if available (in format yyyy-mm-dd hh:mm).
</p>
<p>If (and only if) both <em>pkg</em> and a valid revision number <em>rev</em> are
specified, try to restore the package from the specified backup.
</p>
<p>Options:
</p>
<dl compact="compact">
<dt><strong>&ndash;all</strong></dt>
<dd><span id="tlmgr-_002d_002dall-3"></span>
<p>Try to restore the latest revision of all package backups found in the
backup directory. Additional non-option arguments (like <em>pkg</em>) are not
allowed.
</p>
</dd>
<dt><strong>&ndash;backupdir</strong> <em>directory</em></dt>
<dd><span id="tlmgr-_002d_002dbackupdir-directory-2"></span>
<p>Specify the directory where the backups are to be found. If not given it
will be taken from the configuration setting in the TLPDB.
</p>
</dd>
<dt><strong>&ndash;dry-run</strong></dt>
<dd><span id="tlmgr-_002d_002ddry_002drun-4"></span>
<p>Nothing is actually restored; instead, the actions to be performed are
written to the terminal.
</p>
</dd>
<dt><strong>&ndash;force</strong></dt>
<dd><span id="tlmgr-_002d_002dforce-2"></span>
<p>Don&rsquo;t ask questions.
</p>
</dd>
<dt><strong>&ndash;json</strong></dt>
<dd><span id="tlmgr-_002d_002djson-2"></span>
<p>When listing backups, the option <code>--json</code> turn on JSON output.
The format is an array of JSON objects (<code>name</code>, <code>rev</code>, <code>date</code>).
For details see <code>tlpkg/doc/JSON-formats.txt</code>, format definition: <code>TLBACKUPS</code>.
If both <code>--json</code> and <code>--data</code> are given, <code>--json</code> takes precedence.
</p>
</dd>
</dl>

</dd>
</dl>

<hr>
<span id="tlmgr-search"></span><div class="header">
<p>
Next: <a href="#tlmgr-shell" accesskey="n" rel="next">tlmgr shell</a>, Previous: <a href="#tlmgr-restore" accesskey="p" rel="prev">tlmgr restore</a>, Up: <a href="#tlmgr-ACTIONS" accesskey="u" rel="up">tlmgr ACTIONS</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="search"></span><h4 class="appendixsubsec">B.6.26 search</h4>

<dl compact="compact">
<dt><strong>search [<em>option</em>...] <em>what</em></strong></dt>
<dd><span id="tlmgr-search-_005boption_002e_002e_002e_005d-what"></span>
</dd>
<dt><strong>search [<em>option</em>...] &ndash;file <em>what</em></strong></dt>
<dd><span id="tlmgr-search-_005boption_002e_002e_002e_005d-_002d_002dfile-what"></span>
</dd>
<dt><strong>search [<em>option</em>...] &ndash;all <em>what</em></strong></dt>
<dd><span id="tlmgr-search-_005boption_002e_002e_002e_005d-_002d_002dall-what"></span>
<p>By default, search the names, short descriptions, and long descriptions
of all locally installed packages for the argument <em>what</em>, interpreted
as a (Perl) regular expression.
</p>
<p>Options:
</p>
<dl compact="compact">
<dt><strong>&ndash;file</strong></dt>
<dd><span id="tlmgr-_002d_002dfile-1"></span>
<p>List all filenames containing <em>what</em>.
</p>
</dd>
<dt><strong>&ndash;all</strong></dt>
<dd><span id="tlmgr-_002d_002dall-4"></span>
<p>Search everything: package names, descriptions and filenames.
</p>
</dd>
<dt><strong>&ndash;global</strong></dt>
<dd><span id="tlmgr-_002d_002dglobal"></span>
<p>Search the TeX Live Database of the installation medium, instead of the
local installation.
</p>
</dd>
<dt><strong>&ndash;word</strong></dt>
<dd><span id="tlmgr-_002d_002dword"></span>
<p>Restrict the search of package names and descriptions (but not
filenames) to match only full words.  For example, searching for
<code>table</code> with this option will not output packages containing the word
<code>tables</code> (unless they also contain the word <code>table</code> on its own).
</p>
</dd>
</dl>

</dd>
</dl>

<hr>
<span id="tlmgr-shell"></span><div class="header">
<p>
Next: <a href="#tlmgr-show" accesskey="n" rel="next">tlmgr show</a>, Previous: <a href="#tlmgr-search" accesskey="p" rel="prev">tlmgr search</a>, Up: <a href="#tlmgr-ACTIONS" accesskey="u" rel="up">tlmgr ACTIONS</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="shell"></span><h4 class="appendixsubsec">B.6.27 shell</h4>

<p>Starts an interactive mode, where tlmgr prompts for commands. This can
be used directly, or for scripting. The first line of output is
<code>protocol</code> <em>n</em>, where <em>n</em> is an unsigned number identifying the
protocol version (currently 1).
</p>
<p>In general, tlmgr actions that can be given on the command line
translate to commands in this shell mode.  For example, you can say
<code>update --list</code> to see what would be updated. The TLPDB is loaded the
first time it is needed (not at the beginning), and used for the rest of
the session.
</p>
<p>Besides these actions, a few commands are specific to shell mode:
</p>
<dl compact="compact">
<dt>protocol</dt>
<dd><span id="tlmgr-protocol"></span>
<p>Print <code>protocol <em>n</em></code>, the current protocol version.
</p>
</dd>
<dt>help</dt>
<dd><span id="tlmgr-help-1"></span>
<p>Print pointers to this documentation.
</p>
</dd>
<dt>version</dt>
<dd><span id="tlmgr-version-1"></span>
<p>Print tlmgr version information.
</p>
</dd>
<dt>quit, end, bye, byebye, EOF</dt>
<dd><span id="tlmgr-quit_002c-end_002c-bye_002c-byebye_002c-EOF"></span>
<p>Exit.
</p>
</dd>
<dt>restart</dt>
<dd><span id="tlmgr-restart"></span>
<p>Restart <code>tlmgr shell</code> with the original command line; most useful when
developing <code>tlmgr</code>.
</p>
</dd>
<dt>load [local|remote]</dt>
<dd><span id="tlmgr-load-_005blocal_007cremote_005d"></span>
<p>Explicitly load the local or remote, respectively, TLPDB.
</p>
</dd>
<dt>save</dt>
<dd><span id="tlmgr-save"></span>
<p>Save the local TLPDB, presumably after other operations have changed it.
</p>
</dd>
<dt>get [<em>var</em>] =item set [<em>var</em> [<em>val</em>]]</dt>
<dd><span id="tlmgr-get-_005bvar_005d-_003ditem-set-_005bvar-_005bval_005d_005d"></span>
<p>Get the value of <em>var</em>, or set it to <em>val</em>.  Possible <em>var</em> names:
<code>debug-translation</code>, <code>machine-readable</code>, <code>no-execute-actions</code>,
<code>require-verification</code>, <code>verify-downloads</code>, <code>repository</code>, and
<code>prompt</code>. All except <code>repository</code> and <code>prompt</code> are booleans, taking
values 0 and 1, and behave like the corresponding command line option.
The <code>repository</code> variable takes a string, and sets the remote
repository location. The <code>prompt</code> variable takes a string, and sets the
current default prompt.
</p>
<p>If <em>var</em> or then <em>val</em> is not specified, it is prompted for.
</p>
</dd>
</dl>

<hr>
<span id="tlmgr-show"></span><div class="header">
<p>
Next: <a href="#tlmgr-uninstall" accesskey="n" rel="next">tlmgr uninstall</a>, Previous: <a href="#tlmgr-shell" accesskey="p" rel="prev">tlmgr shell</a>, Up: <a href="#tlmgr-ACTIONS" accesskey="u" rel="up">tlmgr ACTIONS</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="show"></span><h4 class="appendixsubsec">B.6.28 show</h4>

<p>Synonym for <a href="#tlmgr-info">info</a>.
</p>
<hr>
<span id="tlmgr-uninstall"></span><div class="header">
<p>
Next: <a href="#tlmgr-update-_005boption_002e_002e_002e_005d-_005bpkg_002e_002e_002e_005d" accesskey="n" rel="next">tlmgr update [<em>option</em>...] [<em>pkg</em>...]</a>, Previous: <a href="#tlmgr-show" accesskey="p" rel="prev">tlmgr show</a>, Up: <a href="#tlmgr-ACTIONS" accesskey="u" rel="up">tlmgr ACTIONS</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="uninstall"></span><h4 class="appendixsubsec">B.6.29 uninstall</h4>

<p>Synonym for <a href="#tlmgr-remove-_005boption_002e_002e_002e_005d-pkg_002e_002e_002e">remove</a>.
</p>
<hr>
<span id="tlmgr-update-_005boption_002e_002e_002e_005d-_005bpkg_002e_002e_002e_005d"></span><div class="header">
<p>
Previous: <a href="#tlmgr-uninstall" accesskey="p" rel="prev">tlmgr uninstall</a>, Up: <a href="#tlmgr-ACTIONS" accesskey="u" rel="up">tlmgr ACTIONS</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="update-_005boption_002e_002e_002e_005d-_005bpkg_002e_002e_002e_005d"></span><h4 class="appendixsubsec">B.6.30 update [<em>option</em>...] [<em>pkg</em>...]</h4>

<p>Updates the packages given as arguments to the latest version available
at the installation source.  Either <code>--all</code> or at least one <em>pkg</em> name
must be specified.  Options:
</p>
<dl compact="compact">
<dt><strong>&ndash;all</strong></dt>
<dd><span id="tlmgr-_002d_002dall-5"></span>
<p>Update all installed packages except for <code>tlmgr</code> itself. If updates to
<code>tlmgr</code> itself are present, this gives an error, unless also the option
<code>--force</code> or <code>--self</code> is given. (See below.)
</p>
<p>In addition to updating the installed packages, during the update of a
collection the local installation is (by default) synchronized to the
status of the collection on the server, for both additions and removals.
</p>
<p>This means that if a package has been removed on the server (and thus
has also been removed from the respective collection), <code>tlmgr</code> will
remove the package in the local installation.  This is called
&ldquo;auto-remove&rdquo; and is announced as such when using the option
<code>--list</code>.  This auto-removal can be suppressed using the option
<code>--no-auto-remove</code> (not recommended, see option description).
</p>
<p>Analogously, if a package has been added to a collection on the server
that is also installed locally, it will be added to the local
installation.  This is called &ldquo;auto-install&rdquo; and is announced as such
when using the option <code>--list</code>.  This auto-installation can be
suppressed using the option <code>--no-auto-install</code> (also not recommended).
</p>
<p>An exception to the collection dependency checks (including the
auto-installation of packages just mentioned) are those that have been
&ldquo;forcibly removed&rdquo; by you, that is, you called <code>tlmgr remove --force</code>
on them.  (See the <code>remove</code> action documentation.)  To reinstall any
such forcibly removed packages use <code>--reinstall-forcibly-removed</code>.
</p>
<p>To reiterate: automatic removals and additions are entirely determined
by comparison of collections. Thus, if you manually install an
individual package <code>foo</code> which is later removed from the server,
<code>tlmgr</code> will not notice and will not remove it locally. (It has to be
this way, without major rearchitecture work, because the tlpdb does not
record the repository from which packages come from.)
</p>
<p>If you want to exclude some packages from the current update run (e.g.,
due to a slow link), see the <code>--exclude</code> option below.
</p>
</dd>
<dt><strong>&ndash;self</strong></dt>
<dd><span id="tlmgr-_002d_002dself"></span>
<p>Update <code>tlmgr</code> itself (that is, the infrastructure packages) if updates
to it are present. On Windows this includes updates to the private Perl
interpreter shipped inside TeX Live.
</p>
<p>If this option is given together with either <code>--all</code> or a list of
packages, then <code>tlmgr</code> will be updated first and, if this update
succeeds, the new version will be restarted to complete the rest of the
updates.
</p>
<p>In short:
</p>
<pre class="verbatim">  tlmgr update --self        # update infrastructure only
  tlmgr update --self --all  # update infrastructure and all packages
  tlmgr update --force --all # update all packages but *not* infrastructure
                             # ... this last at your own risk, not recommended!
</pre>
</dd>
<dt><strong>&ndash;dry-run</strong></dt>
<dd><span id="tlmgr-_002d_002ddry_002drun-5"></span>
<p>Nothing is actually installed; instead, the actions to be performed are
written to the terminal.  This is a more detailed report than <code>--list</code>.
</p>
</dd>
<dt><strong>&ndash;list</strong> [<em>pkg</em>]</dt>
<dd><span id="tlmgr-_002d_002dlist-_005bpkg_005d"></span>
<p>Concisely list the packages which would be updated, newly installed, or
removed, without actually changing anything. 
If <code>--all</code> is also given, all available updates are listed.
If <code>--self</code> is given, but not <code>--all</code>, only updates to the
critical packages (tlmgr, texlive infrastructure, perl on Windows, etc.)
are listed.
If neither <code>--all</code> nor <code>--self</code> is given, and in addition no <em>pkg</em> is
given, then <code>--all</code> is assumed (thus, <code>tlmgr update --list</code> is the
same as <code>tlmgr update --list --all</code>).
If neither <code>--all</code> nor <code>--self</code> is given, but specific package names are
given, those packages are checked for updates.
</p>
</dd>
<dt><strong>&ndash;exclude</strong> <em>pkg</em></dt>
<dd><span id="tlmgr-_002d_002dexclude-pkg"></span>
<p>Exclude <em>pkg</em> from the update process.  If this option is given more
than once, its arguments accumulate.
</p>
<p>An argument <em>pkg</em> excludes both the package <em>pkg</em> itself and all
its related platform-specific packages <em>pkg.ARCH</em>.  For example,
</p>
<pre class="verbatim">  tlmgr update --all --exclude a2ping
</pre>
<p>will not update <code>a2ping</code>, <code>a2ping.i386-linux</code>, or
any other <code>a2ping.</code><em>ARCH</em> package.
</p>
<p>If this option specifies a package that would otherwise be a candidate
for auto-installation, auto-removal, or reinstallation of a forcibly
removed package, <code>tlmgr</code> quits with an error message.  Excludes are not
supported in these circumstances.
</p>
<p>This option can also be set permanently in the tlmgr config file with 
the key <code>update-exclude</code>.
</p>
</dd>
<dt><strong>&ndash;no-auto-remove</strong> [<em>pkg</em>...]</dt>
<dd><span id="tlmgr-_002d_002dno_002dauto_002dremove-_005bpkg_002e_002e_002e_005d"></span>
<p>By default, <code>tlmgr</code> tries to remove packages in an existing collection
which have disappeared on the server, as described above under <code>--all</code>.
This option prevents such removals, either for all packages (with
<code>--all</code>), or for just the given <em>pkg</em> names. This can lead to an
inconsistent TeX installation, since packages are not infrequently
renamed or replaced by their authors. Therefore this is not recommended.
</p>
</dd>
<dt><strong>&ndash;no-auto-install</strong> [<em>pkg</em>...]</dt>
<dd><span id="tlmgr-_002d_002dno_002dauto_002dinstall-_005bpkg_002e_002e_002e_005d"></span>
<p>Under normal circumstances <code>tlmgr</code> will install packages which are new
on the server, as described above under <code>--all</code>.  This option prevents
any such automatic installation, either for all packages (with
<code>--all</code>), or the given <em>pkg</em> names.
</p>
<p>Furthermore, after the <code>tlmgr</code> run using this has finished, the
packages that would have been auto-installed <em>will be considered as
forcibly removed</em>.  So, if <code>foobar</code> is the only new package on the
server, then
</p>
<pre class="verbatim">  tlmgr update --all --no-auto-install
</pre>
<p>is equivalent to
</p>
<pre class="verbatim">  tlmgr update --all
  tlmgr remove --force foobar
</pre>
<p>Again, since packages are sometimes renamed or replaced, using this
option is not recommended.
</p>
</dd>
<dt><strong>&ndash;reinstall-forcibly-removed</strong></dt>
<dd><span id="tlmgr-_002d_002dreinstall_002dforcibly_002dremoved"></span>
<p>Under normal circumstances <code>tlmgr</code> will not install packages that have
been forcibly removed by the user; that is, removed with <code>remove
--force</code>, or whose installation was prohibited by <code>--no-auto-install</code>
during an earlier update.
</p>
<p>This option makes <code>tlmgr</code> ignore the forcible removals and re-install
all such packages. This can be used to completely synchronize an
installation with the server&rsquo;s idea of what is available:
</p>
<pre class="verbatim">  tlmgr update --reinstall-forcibly-removed --all
</pre>
</dd>
<dt><strong>&ndash;backup</strong></dt>
<dd><span id="tlmgr-_002d_002dbackup-1"></span>
</dd>
<dt><strong>&ndash;backupdir</strong> <em>directory</em></dt>
<dd><span id="tlmgr-_002d_002dbackupdir-directory-3"></span>
<p>These two options control the creation of backups of packages <em>before</em>
updating; that is, backing up packages as currently installed.  If
neither option is given, no backup will made. If <code>--backupdir</code> is
given and specifies a writable directory then a backup will be made in
that location. If only <code>--backup</code> is given, then a backup will be made
to the directory previously set via the <a href="#tlmgr-option">option</a> action (see
below). If both are given then a backup will be made to the specified
<em>directory</em>.
</p>
<p>You can also set options via the <a href="#tlmgr-option">option</a> action to automatically make
backups for all packages, and/or keep only a certain number of backups.
</p>
<p><code>tlmgr</code> always makes a temporary backup when updating packages, in case
of download or other failure during an update.  In contrast, the purpose
of this <code>--backup</code> option is to save a persistent backup in case the
actual <em>content</em> of the update causes problems, e.g., introduces an TeX
incompatibility.
</p>
<p>The <a href="#tlmgr-restore">restore</a> action explains how to restore from a backup.
</p>
</dd>
<dt><strong>&ndash;no-depends</strong></dt>
<dd><span id="tlmgr-_002d_002dno_002ddepends-2"></span>
<p>If you call for updating a package normally all depending packages
will also be checked for updates and updated if necessary. This switch
suppresses this behavior.
</p>
</dd>
<dt><strong>&ndash;no-depends-at-all</strong></dt>
<dd><span id="tlmgr-_002d_002dno_002ddepends_002dat_002dall-2"></span>
<p>See above under <a href="#tlmgr-install-_005boption_002e_002e_002e_005d-pkg_002e_002e_002e">install</a> (and beware).
</p>
</dd>
<dt><strong>&ndash;force</strong></dt>
<dd><span id="tlmgr-_002d_002dforce-3"></span>
<p>Force update of normal packages, without updating <code>tlmgr</code> itself 
(unless the <code>--self</code> option is also given).  Not recommended.
</p>
<p>Also, <code>update --list</code> is still performed regardless of this option.
</p>
</dd>
</dl>

<p>If the package on the server is older than the package already installed
(e.g., if the selected mirror is out of date), <code>tlmgr</code> does not
downgrade.  Also, packages for uninstalled platforms are not installed.
</p>
<p><code>tlmgr</code> saves a copy of the <code>texlive.tlpdb</code> file used for an update
with a suffix representing the repository url, as in
<code>tlpkg/texlive.tlpdb.</code><em>long-hash-string</em>.  These can be useful for
fallback information, but if you don&rsquo;t like them accumulating (e.g.,
<code>mirror.ctan.org</code> resolves to many different hosts, each resulting in
a possibly different hash), it&rsquo;s harmless to delete them.
</p>
<p>This action does not automatically add or remove new symlinks in system
directories; you need to run <code>tlmgr</code> <a href="#tlmgr-path">path</a> yourself if you are using
this feature and want new symlinks added.
</p>
<hr>
<span id="tlmgr-CONFIGURATION-FILE-FOR-TLMGR"></span><div class="header">
<p>
Next: <a href="#tlmgr-CRYPTOGRAPHIC-VERIFICATION" accesskey="n" rel="next">tlmgr CRYPTOGRAPHIC VERIFICATION</a>, Previous: <a href="#tlmgr-ACTIONS" accesskey="p" rel="prev">tlmgr ACTIONS</a>, Up: <a href="#tlmgr" accesskey="u" rel="up">tlmgr</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="CONFIGURATION-FILE-FOR-TLMGR"></span><h3 class="appendixsec">B.7 CONFIGURATION FILE FOR TLMGR</h3>

<p><code>tlmgr</code> reads two configuration files: one is system-wide, in
<code>TEXMFSYSCONFIG/tlmgr/config</code>, and the other is user-specific, in
<code>TEXMFCONFIG/tlmgr/config</code>.  The user-specific one is the default for
the <code>conf tlmgr</code> action.  (Run <code>kpsewhich
-var-value=TEXMFSYSCONFIG</code> or <code>... TEXMFCONFIG ...</code> to see the actual
directory names.)
</p>
<p>A few defaults corresponding to command-line options can be set in these
configuration files.  In addition, the system-wide file can contain a
directive to restrict the allowed actions.
</p>
<p>In these config files, empty lines and lines starting with # are
ignored.  All other lines must look like:
</p>
<pre class="verbatim">  key = value
</pre>
<p>where the spaces are optional but the <code>=</code> is required.
</p>
<p>The allowed keys are:
</p>
<dl compact="compact">
<dt><code>auto-remove</code>, value 0 or 1 (default 1), same as command-line option.</dt>
<dd><span id="tlmgr-auto_002dremove_002c-value-0-or-1-_0028default-1_0029_002c-same-as-command_002dline-option_002e"></span>
</dd>
<dt><code>gui-expertmode</code>, value 0 or 1 (default 1). This switches between the full GUI and a simplified GUI with only the most common settings.</dt>
<dd><span id="tlmgr-gui_002dexpertmode_002c-value-0-or-1-_0028default-1_0029_002e-This-switches-between-the-full-GUI-and-a-simplified-GUI-with-only-the-most-common-settings_002e"></span>
</dd>
<dt><code>gui-lang</code> <em>llcode</em>, with a language code value as with the command-line option.</dt>
<dd><span id="tlmgr-gui_002dlang-llcode_002c-with-a-language-code-value-as-with-the-command_002dline-option_002e"></span>
</dd>
<dt><code>no-checksums</code>, value 0 or 1 (default 0, see below).</dt>
<dd><span id="tlmgr-no_002dchecksums_002c-value-0-or-1-_0028default-0_002c-see-below_0029_002e"></span>
</dd>
<dt><code>persistent-downloads</code>, value 0 or 1 (default 1), same as command-line option.</dt>
<dd><span id="tlmgr-persistent_002ddownloads_002c-value-0-or-1-_0028default-1_0029_002c-same-as-command_002dline-option_002e"></span>
</dd>
<dt><code>require-verification</code>, value 0 or 1 (default 0), same as command-line option.</dt>
<dd><span id="tlmgr-require_002dverification_002c-value-0-or-1-_0028default-0_0029_002c-same-as-command_002dline-option_002e"></span>
</dd>
<dt><code>update-exclude</code>, value: comma-separated list of packages (no space allowed). Same as the command line option <code>--exclude</code> for the action <code>update</code>.</dt>
<dd><span id="tlmgr-update_002dexclude_002c-value_003a-comma_002dseparated-list-of-packages-_0028no-space-allowed_0029_002e-Same-as-the-command-line-option-_002d_002dexclude-for-the-action-update_002e"></span>
</dd>
<dt><code>verify-downloads</code>, value 0 or 1 (default 1), same as command-line option.</dt>
<dd><span id="tlmgr-verify_002ddownloads_002c-value-0-or-1-_0028default-1_0029_002c-same-as-command_002dline-option_002e"></span>
</dd>
</dl>

<p>The system-wide config file can contain one additional key:
</p>
<dl compact="compact">
<dt><code>allowed-actions</code> <em>action1</em> [,<em>action</em>,...] The value is a comma-separated list of <code>tlmgr</code> actions which are allowed to be executed when <code>tlmgr</code> is invoked in system mode (that is, without <code>--usermode</code>).</dt>
<dd><span id="tlmgr-allowed_002dactions-action1-_005b_002caction_002c_002e_002e_002e_005d-The-value-is-a-comma_002dseparated-list-of-tlmgr-actions-which-are-allowed-to-be-executed-when-tlmgr-is-invoked-in-system-mode-_0028that-is_002c-without-_002d_002dusermode_0029_002e"></span>
<p>This allows distributors to include the <code>tlmgr</code> in their packaging, but
allow only a restricted set of actions that do not interfere with their
distro package manager.  For native TeX Live installations, it doesn&rsquo;t
make sense to set this.
</p>
</dd>
</dl>

<p>The <code>no-checksums</code> key needs more explanation.  By default, package
checksums computed and stored on the server (in the TLPDB) are compared
to checksums computed locally after downloading.  <code>no-checksums</code>
disables this process.
</p>
<p>The checksum algorithm is SHA-512.  Your system must have one of (looked
for in this order) the Perl <code>Digest::SHA</code> module, the <code>openssl</code>
program (<a href="https://openssl.org">https://openssl.org</a>), the <code>sha512sum</code> program (from GNU
Coreutils, <a href="https://www.gnu.org/software/coreutils">https://www.gnu.org/software/coreutils</a>), or finally the
<code>shasum</code> program (just to support old Macs).  If none of these are
available, a warning is issued and <code>tlmgr</code> proceeds without checking
checksums.  (Incidentally, other SHA implementations, such as the pure
Perl and pure Lua modules, are much too slow to be usable in our
context.)  <code>no-checksums</code> avoids the warning.
</p>
<hr>
<span id="tlmgr-CRYPTOGRAPHIC-VERIFICATION"></span><div class="header">
<p>
Next: <a href="#tlmgr-USER-MODE" accesskey="n" rel="next">tlmgr USER MODE</a>, Previous: <a href="#tlmgr-CONFIGURATION-FILE-FOR-TLMGR" accesskey="p" rel="prev">tlmgr CONFIGURATION FILE FOR TLMGR</a>, Up: <a href="#tlmgr" accesskey="u" rel="up">tlmgr</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="CRYPTOGRAPHIC-VERIFICATION"></span><h3 class="appendixsec">B.8 CRYPTOGRAPHIC VERIFICATION</h3>

<p><code>tlmgr</code> and <code>install-tl</code> perform cryptographic verification if
possible.  If verification is performed and successful, the programs
report <code>(verified)</code> after loading the TLPDB; otherwise, they report
<code>(not verified)</code>.  But either way, by default the installation and/or
updates proceed normally.
</p>
<p>If a program named <code>gpg</code> is available (that is, found in <code>PATH</code>), by
default cryptographic signatures will be checked: we require the main
repository be signed, but not any additional repositories. If <code>gpg</code> is
not available, by default signatures are not checked and no verification
is carried out, but <code>tlmgr</code> still proceeds normally.
</p>
<p>The behavior of the verification can be controlled by the command line
and config file option <code>verify-repo</code> which takes one of the following
values: <code>none</code>, <code>main</code>, or <code>all</code>. With <code>none</code>, no verification
whatsoever is attempted.  With <code>main</code> (the default) verification is
required only for the main repository, and only if <code>gpg</code> is available;
though attempted for all, missing signatures of subsidiary repositories
will not result in an error.  Finally, in the case of <code>all</code>, <code>gpg</code>
must be available and all repositories need to be signed.
</p>
<p>In all cases, if a signature is checked and fails to verify, an error
is raised.
</p>
<p>Cryptographic verification requires checksum checking (described just
above) to succeed, and a working GnuPG (<code>gpg</code>) program (see below for
search method).  Then, unless cryptographic verification has been
disabled, a signature file (<code>texlive.tlpdb.*.asc</code>) of the checksum file
is downloaded and the signature verified. The signature is created by
the TeX Live Distribution GPG key 0x0D5E5D9106BAB6BC, which in turn is
signed by Karl Berry&rsquo;s key 0x0716748A30D155AD and
Norbert Preining&rsquo;s key 0x6CACA448860CDC13.  All
of these keys are obtainable from the standard key servers.
</p>
<p>Additional trusted keys can be added using the <code>key</code> action.
</p>
<table class="menu" border="0" cellspacing="0">
<tr><td align="left" valign="top">&bull; <a href="#tlmgr-Configuration-of-GnuPG-invocation" accesskey="1">tlmgr Configuration of GnuPG invocation</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
</table>

<hr>
<span id="tlmgr-Configuration-of-GnuPG-invocation"></span><div class="header">
<p>
Up: <a href="#tlmgr-CRYPTOGRAPHIC-VERIFICATION" accesskey="u" rel="up">tlmgr CRYPTOGRAPHIC VERIFICATION</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="Configuration-of-GnuPG-invocation"></span><h4 class="appendixsubsec">B.8.1 Configuration of GnuPG invocation</h4>

<p>The executable used for GnuPG is searched as follows: If the environment
variable <code>TL_GNUPG</code> is set, it is tested and used; otherwise <code>gpg</code> is
checked; finally <code>gpg2</code> is checked.
</p>
<p>Further adaptation of the <code>gpg</code> invocation can be made using the two
environment variables <code>TL_GNUPGHOME</code>, which is passed to <code>gpg</code> as the
value for <code>--homedir</code>, and <code>TL_GNUPGARGS</code>, which replaces the default
options <code>--no-secmem-warning --no-permission-warning</code>.
</p>
<hr>
<span id="tlmgr-USER-MODE"></span><div class="header">
<p>
Next: <a href="#tlmgr-MULTIPLE-REPOSITORIES" accesskey="n" rel="next">tlmgr MULTIPLE REPOSITORIES</a>, Previous: <a href="#tlmgr-CRYPTOGRAPHIC-VERIFICATION" accesskey="p" rel="prev">tlmgr CRYPTOGRAPHIC VERIFICATION</a>, Up: <a href="#tlmgr" accesskey="u" rel="up">tlmgr</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="USER-MODE"></span><h3 class="appendixsec">B.9 USER MODE</h3>

<p><code>tlmgr</code> provides a restricted way, called &ldquo;user mode&rdquo;, to manage
arbitrary texmf trees in the same way as the main installation.  For
example, this allows people without write permissions on the
installation location to update/install packages into a tree of their
own.
</p>
<p><code>tlmgr</code> is switched into user mode with the command line option
<code>--usermode</code>.  It does not switch automatically, nor is there any
configuration file setting for it.  Thus, this option has to be
explicitly given every time user mode is to be activated.
</p>
<p>This mode of <code>tlmgr</code> works on a user tree, by default the value of the
<code>TEXMFHOME</code> variable.  This can be overridden with the command line
option <code>--usertree</code>.  In the following when we speak of the user tree
we mean either <code>TEXMFHOME</code> or the one given on the command line.
</p>
<p>Not all actions are allowed in user mode; <code>tlmgr</code> will warn you and not
carry out any problematic actions.  Currently not supported (and
probably will never be) is the <code>platform</code> action.  The <code>gui</code> action is
currently not supported, but may be in a future release.
</p>
<p>Some <code>tlmgr</code> actions don&rsquo;t need any write permissions and thus work the
same in user mode and normal mode.  Currently these are: <code>check</code>,
<code>help</code>, <code>list</code>, <code>print-platform</code>, <code>print-platform-info</code>, <code>search</code>,
<code>show</code>, <code>version</code>.
</p>
<p>On the other hand, most of the actions dealing with package management
do need write permissions, and thus behave differently in user mode, as
described below: <code>install</code>, <code>update</code>, <code>remove</code>, <code>option</code>, <code>paper</code>,
<code>generate</code>, <code>backup</code>, <code>restore</code>, <code>uninstall</code>, <code>symlinks</code>.
</p>
<p>Before using <code>tlmgr</code> in user mode, you have to set up the user tree
with the <code>init-usertree</code> action.  This creates <em>usertree</em><code>/web2c</code> and
<em>usertree</em><code>/tlpkg/tlpobj</code>, and a minimal
<em>usertree</em><code>/tlpkg/texlive.tlpdb</code>.  At that point, you can tell
<code>tlmgr</code> to do the (supported) actions by adding the <code>--usermode</code>
command line option.
</p>
<p>In user mode the file <em>usertree</em><code>/tlpkg/texlive.tlpdb</code> contains only
the packages that have been installed into the user tree using <code>tlmgr</code>,
plus additional options from the &ldquo;virtual&rdquo; package
<code>00texlive.installation</code> (similar to the main installation&rsquo;s
<code>texlive.tlpdb</code>).
</p>
<p>All actions on packages in user mode can only be carried out on packages
that are known as <code>relocatable</code>.  This excludes all packages containing
executables and a few other core packages.  Of the 2500 or so packages
currently in TeX Live the vast majority are relocatable and can be
installed into a user tree.
</p>
<p>Description of changes of actions in user mode:
</p>
<table class="menu" border="0" cellspacing="0">
<tr><td align="left" valign="top">&bull; <a href="#tlmgr-User-mode-install" accesskey="1">tlmgr User mode install</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#tlmgr-User-mode-backup_002c-restore_002c-remove_002c-update" accesskey="2">tlmgr User mode backup, restore, remove, update</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#tlmgr-User-mode-generate_002c-option_002c-paper" accesskey="3">tlmgr User mode generate, option, paper</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
</table>

<hr>
<span id="tlmgr-User-mode-install"></span><div class="header">
<p>
Next: <a href="#tlmgr-User-mode-backup_002c-restore_002c-remove_002c-update" accesskey="n" rel="next">tlmgr User mode backup, restore, remove, update</a>, Up: <a href="#tlmgr-USER-MODE" accesskey="u" rel="up">tlmgr USER MODE</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="User-mode-install"></span><h4 class="appendixsubsec">B.9.1 User mode install</h4>

<p>In user mode, the <code>install</code> action checks that the package and all
dependencies are all either relocated or already installed in the system
installation.  If this is the case, it unpacks all containers to be
installed into the user tree (to repeat, that&rsquo;s either <code>TEXMFHOME</code> or
the value of <code>--usertree</code>) and add the respective packages to the user
tree&rsquo;s <code>texlive.tlpdb</code> (creating it if need be).
</p>
<p>Currently installing a collection in user mode installs all dependent
packages, but in contrast to normal mode, does <em>not</em> install dependent
collections.  For example, in normal mode <code>tlmgr install
collection-context</code> would install <code>collection-basic</code> and other
collections, while in user mode, <em>only</em> the packages mentioned in
<code>collection-context</code> are installed.
</p>
<p>If a package shipping map files is installed in user mode, a backup of
the user&rsquo;s <code>updmap.cfg</code> in <code>USERTREE/web2c/</code> is made, and then this file
regenerated from the list of installed packages.
</p>
<hr>
<span id="tlmgr-User-mode-backup_002c-restore_002c-remove_002c-update"></span><div class="header">
<p>
Next: <a href="#tlmgr-User-mode-generate_002c-option_002c-paper" accesskey="n" rel="next">tlmgr User mode generate, option, paper</a>, Previous: <a href="#tlmgr-User-mode-install" accesskey="p" rel="prev">tlmgr User mode install</a>, Up: <a href="#tlmgr-USER-MODE" accesskey="u" rel="up">tlmgr USER MODE</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="User-mode-backup_002c-restore_002c-remove_002c-update"></span><h4 class="appendixsubsec">B.9.2 User mode backup, restore, remove, update</h4>

<p>In user mode, these actions check that all packages to be acted on are
installed in the user tree before proceeding; otherwise, they behave
just as in normal mode.
</p>
<hr>
<span id="tlmgr-User-mode-generate_002c-option_002c-paper"></span><div class="header">
<p>
Previous: <a href="#tlmgr-User-mode-backup_002c-restore_002c-remove_002c-update" accesskey="p" rel="prev">tlmgr User mode backup, restore, remove, update</a>, Up: <a href="#tlmgr-USER-MODE" accesskey="u" rel="up">tlmgr USER MODE</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="User-mode-generate_002c-option_002c-paper"></span><h4 class="appendixsubsec">B.9.3 User mode generate, option, paper</h4>

<p>In user mode, these actions operate only on the user tree&rsquo;s
configuration files and/or <code>texlive.tlpdb</code>.
creates configuration files in user tree
</p>
<hr>
<span id="tlmgr-MULTIPLE-REPOSITORIES"></span><div class="header">
<p>
Next: <a href="#tlmgr-GUI-FOR-TLMGR" accesskey="n" rel="next">tlmgr GUI FOR TLMGR</a>, Previous: <a href="#tlmgr-USER-MODE" accesskey="p" rel="prev">tlmgr USER MODE</a>, Up: <a href="#tlmgr" accesskey="u" rel="up">tlmgr</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="MULTIPLE-REPOSITORIES"></span><h3 class="appendixsec">B.10 MULTIPLE REPOSITORIES</h3>

<p>The main TeX Live repository contains a vast array of packages.
Nevertheless, additional local repositories can be useful to provide
locally-installed resources, such as proprietary fonts and house styles.
Also, alternative package repositories distribute packages that cannot
or should not be included in TeX Live, for whatever reason.
</p>
<p>The simplest and most reliable method is to temporarily set the
installation source to any repository (with the <code>-repository</code> or
<code>option repository</code> command line options), and perform your operations.
</p>
<p>When you are using multiple repositories over a sustained length of
time, however, explicitly switching between them becomes inconvenient.
Thus, it&rsquo;s possible to tell <code>tlmgr</code> about additional repositories you
want to use.  The basic command is <code>tlmgr repository add</code>.  The rest of
this section explains further.
</p>
<p>When using multiple repositories, one of them has to be set as the main
repository, which distributes most of the installed packages.  When you
switch from a single repository installation to a multiple repository
installation, the previous sole repository will be set as the main
repository.
</p>
<p>By default, even if multiple repositories are configured, packages are
<em>still</em> <em>only</em> installed from the main repository.  Thus, simply
adding a second repository does not actually enable installation of
anything from there.  You also have to specify which packages should be
taken from the new repository, by specifying so-called &ldquo;pinning&rdquo;
rules, described next.
</p>
<table class="menu" border="0" cellspacing="0">
<tr><td align="left" valign="top">&bull; <a href="#tlmgr-Pinning" accesskey="1">tlmgr Pinning</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
</table>

<hr>
<span id="tlmgr-Pinning"></span><div class="header">
<p>
Up: <a href="#tlmgr-MULTIPLE-REPOSITORIES" accesskey="u" rel="up">tlmgr MULTIPLE REPOSITORIES</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="Pinning"></span><h4 class="appendixsubsec">B.10.1 Pinning</h4>

<p>When a package <code>foo</code> is pinned to a repository, a package <code>foo</code> in any
other repository, even if it has a higher revision number, will not be
considered an installable candidate.
</p>
<p>As mentioned above, by default everything is pinned to the main
repository.  Let&rsquo;s now go through an example of setting up a second
repository and enabling updates of a package from it.
</p>
<p>First, check that we have support for multiple repositories, and have
only one enabled (as is the case by default):
</p>
<pre class="verbatim"> $ tlmgr repository list
 List of repositories (with tags if set):
   /var/www/norbert/tlnet
</pre>
<p>Ok.  Let&rsquo;s add the <code>tlcontrib</code> repository (this is a real
repository hosted at <a href="http://contrib.texlive.info">http://contrib.texlive.info</a>) with the tag <code>tlcontrib</code>:
</p>
<pre class="verbatim"> $ tlmgr repository add http://contrib.texlive.info/current tlcontrib
</pre>
<p>Check the repository list again:
</p>
<pre class="verbatim"> $ tlmgr repository list
 List of repositories (with tags if set):
    http://contrib.texlive.info/current (tlcontrib)
    /var/www/norbert/tlnet (main)
</pre>
<p>Now we specify a pinning entry to get the package <code>classico</code> from
<code>tlcontrib</code>:
</p>
<pre class="verbatim"> $ tlmgr pinning add tlcontrib classico
</pre>
<p>Check that we can find <code>classico</code>:
</p>
<pre class="verbatim"> $ tlmgr show classico
 package:     classico
 ...
 shortdesc:   URW Classico fonts
 ...
</pre>
<p>- install <code>classico</code>:
</p>
<pre class="verbatim"> $ tlmgr install classico
 tlmgr: package repositories:
 ...
 [1/1,  ??:??/??:??] install: classico @tlcontrib [737k]
</pre>
<p>In the output here you can see that the <code>classico</code> package has been
installed from the <code>tlcontrib</code> repository (<code>@tlcontrib</code>).
</p>
<p>Finally, <code>tlmgr pinning</code> also supports removing certain or all packages
from a given repository:
</p>
<pre class="verbatim">  $ tlmgr pinning remove tlcontrib classico # remove just classico
  $ tlmgr pinning remove tlcontrib --all    # take nothing from tlcontrib
</pre>
<p>A summary of <code>tlmgr pinning</code> actions is given above.
</p>
<hr>
<span id="tlmgr-GUI-FOR-TLMGR"></span><div class="header">
<p>
Next: <a href="#tlmgr-MACHINE_002dREADABLE-OUTPUT" accesskey="n" rel="next">tlmgr MACHINE-READABLE OUTPUT</a>, Previous: <a href="#tlmgr-MULTIPLE-REPOSITORIES" accesskey="p" rel="prev">tlmgr MULTIPLE REPOSITORIES</a>, Up: <a href="#tlmgr" accesskey="u" rel="up">tlmgr</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="GUI-FOR-TLMGR"></span><h3 class="appendixsec">B.11 GUI FOR TLMGR</h3>

<p>The graphical user interface for <code>tlmgr</code> requires Perl/Tk
<a href="https://search.cpan.org/search?query=perl%2Ftk">https://search.cpan.org/search?query=perl%2Ftk</a>. For Unix-based
systems Perl/Tk (as well as Perl of course) has to be installed
outside of TL.  <a href="https://tug.org/texlive/distro.html#perltk">https://tug.org/texlive/distro.html#perltk</a> has a
list of invocations for some distros.  For Windows the necessary
modules are no longer shipped within TeX Live, so you&rsquo;ll have to have an
external Perl available that includes them.
</p>
<p>We are talking here about the GUI built into tlmgr itself, not about the
other tlmgr GUIs, which are: tlshell (Tcl/Tk-based), tlcockpit
(Java-based) and, only on Macs, TeX Live Utility. These are invoked as
separate programs.
</p>
<p>The GUI mode of tlmgr is started with the invocation <code>tlmgr gui</code>;
assuming Tk is loadable, the graphical user interface will be shown.
The main window contains a menu bar, the main display, and a status
area where messages normally shown on the console are displayed.
</p>
<p>Within the main display there are three main parts: the <code>Display
configuration</code> area, the list of packages, and the action buttons.
</p>
<p>Also, at the top right the currently loaded repository is shown; this
also acts as a button and when clicked will try to load the default
repository.  To load a different repository, see the <code>tlmgr</code> menu item.
</p>
<p>Finally, the status area at the bottom of the window gives additional
information about what is going on.
</p>
<table class="menu" border="0" cellspacing="0">
<tr><td align="left" valign="top">&bull; <a href="#tlmgr-Main-display" accesskey="1">tlmgr Main display</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#tlmgr-Menu-bar" accesskey="2">tlmgr Menu bar</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#tlmgr-GUI-options" accesskey="3">tlmgr GUI options</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
</table>

<hr>
<span id="tlmgr-Main-display"></span><div class="header">
<p>
Next: <a href="#tlmgr-Menu-bar" accesskey="n" rel="next">tlmgr Menu bar</a>, Up: <a href="#tlmgr-GUI-FOR-TLMGR" accesskey="u" rel="up">tlmgr GUI FOR TLMGR</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="Main-display"></span><h4 class="appendixsubsec">B.11.1 Main display</h4>

<table class="menu" border="0" cellspacing="0">
<tr><td align="left" valign="top">&bull; <a href="#tlmgr-Display-configuration-area" accesskey="1">tlmgr Display configuration area</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#tlmgr-Package-list-area" accesskey="2">tlmgr Package list area</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#tlmgr-Main-display-action-buttons" accesskey="3">tlmgr Main display action buttons</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
</table>

<hr>
<span id="tlmgr-Display-configuration-area"></span><div class="header">
<p>
Next: <a href="#tlmgr-Package-list-area" accesskey="n" rel="next">tlmgr Package list area</a>, Up: <a href="#tlmgr-Main-display" accesskey="u" rel="up">tlmgr Main display</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="Display-configuration-area"></span><h4 class="appendixsubsubsec">B.11.1.1 Display configuration area</h4>

<p>The first part of the main display allows you to specify (filter) which
packages are shown.  By default, all are shown.  Changes here are
reflected right away.
</p>
<dl compact="compact">
<dt>Status</dt>
<dd><span id="tlmgr-Status"></span>
<p>Select whether to show all packages (the default), only those installed,
only those <em>not</em> installed, or only those with update available.
</p>
</dd>
<dt>Category</dt>
<dd><span id="tlmgr-Category"></span>
<p>Select which categories are shown: packages, collections, and/or
schemes.  These are briefly explained in the <a href="#tlmgr-DESCRIPTION">DESCRIPTION</a> section
above.
</p>
</dd>
<dt>Match</dt>
<dd><span id="tlmgr-Match"></span>
<p>Select packages matching for a specific pattern.  By default, this
searches both descriptions and filenames.  You can also select a subset
for searching.
</p>
</dd>
<dt>Selection</dt>
<dd><span id="tlmgr-Selection"></span>
<p>Select packages to those selected, those not selected, or all.  Here,
&ldquo;selected&rdquo; means that the checkbox in the beginning of the line of a
package is ticked.
</p>
</dd>
<dt>Display configuration buttons</dt>
<dd><span id="tlmgr-Display-configuration-buttons"></span>
<p>To the right there are three buttons: select all packages, select none
(a.k.a. deselect all), and reset all these filters to the defaults,
i.e., show all available.
</p>
</dd>
</dl>

<hr>
<span id="tlmgr-Package-list-area"></span><div class="header">
<p>
Next: <a href="#tlmgr-Main-display-action-buttons" accesskey="n" rel="next">tlmgr Main display action buttons</a>, Previous: <a href="#tlmgr-Display-configuration-area" accesskey="p" rel="prev">tlmgr Display configuration area</a>, Up: <a href="#tlmgr-Main-display" accesskey="u" rel="up">tlmgr Main display</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="Package-list-area"></span><h4 class="appendixsubsubsec">B.11.1.2 Package list area</h4>

<p>The second are of the main display lists all installed packages.  If a
repository is loaded, those that are available but not installed are
also listed.
</p>
<p>Double clicking on a package line pops up an informational window with
further details: the long description, included files, etc.
</p>
<p>Each line of the package list consists of the following items:
</p>
<dl compact="compact">
<dt>a checkbox</dt>
<dd><span id="tlmgr-a-checkbox"></span>
<p>Used to select particular packages; some of the action buttons (see
below) work only on the selected packages.
</p>
</dd>
<dt>package name</dt>
<dd><span id="tlmgr-package-name"></span>
<p>The name (identifier) of the package as given in the database.
</p>
</dd>
<dt>local revision (and version)</dt>
<dd><span id="tlmgr-local-revision-_0028and-version_0029"></span>
<p>If the package is installed the TeX Live revision number for the
installed package will be shown.  If there is a catalogue version given
in the database for this package, it will be shown in parentheses.
However, the catalogue version, unlike the TL revision, is not
guaranteed to reflect what is actually installed.
</p>
</dd>
<dt>remote revision (and version)</dt>
<dd><span id="tlmgr-remote-revision-_0028and-version_0029"></span>
<p>If a repository has been loaded the revision of the package in the
repository (if present) is shown.  As with the local column, if a
catalogue version is provided it will be displayed.  And also as with
the local column, the catalogue version may be stale.
</p>
</dd>
<dt>short description</dt>
<dd><span id="tlmgr-short-description"></span>
<p>The short description of the package.
</p>
</dd>
</dl>

<hr>
<span id="tlmgr-Main-display-action-buttons"></span><div class="header">
<p>
Previous: <a href="#tlmgr-Package-list-area" accesskey="p" rel="prev">tlmgr Package list area</a>, Up: <a href="#tlmgr-Main-display" accesskey="u" rel="up">tlmgr Main display</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="Main-display-action-buttons"></span><h4 class="appendixsubsubsec">B.11.1.3 Main display action buttons</h4>

<p>Below the list of packages are several buttons:
</p>
<dl compact="compact">
<dt>Update all installed</dt>
<dd><span id="tlmgr-Update-all-installed"></span>
<p>This calls <code>tlmgr update --all</code>, i.e., tries to update all available
packages.  Below this button is a toggle to allow reinstallation of
previously removed packages as part of this action.
</p>
<p>The other four buttons only work on the selected packages, i.e., those
where the checkbox at the beginning of the package line is ticked.
</p>
</dd>
<dt>Update</dt>
<dd><span id="tlmgr-Update"></span>
<p>Update only the selected packages.
</p>
</dd>
<dt>Install</dt>
<dd><span id="tlmgr-Install"></span>
<p>Install the selected packages; acts like <code>tlmgr install</code>, i.e., also
installs dependencies.  Thus, installing a collection installs all its
constituent packages.
</p>
</dd>
<dt>Remove</dt>
<dd><span id="tlmgr-Remove"></span>
<p>Removes the selected packages; acts like <code>tlmgr remove</code>, i.e., it will
also remove dependencies of collections (but not dependencies of normal
packages).
</p>
</dd>
<dt>Backup</dt>
<dd><span id="tlmgr-Backup"></span>
<p>Makes a backup of the selected packages; acts like <code>tlmgr backup</code>. This
action needs the option <code>backupdir</code> set (see <code>Options -</code> General&gt;).
</p>
</dd>
</dl>

<hr>
<span id="tlmgr-Menu-bar"></span><div class="header">
<p>
Next: <a href="#tlmgr-GUI-options" accesskey="n" rel="next">tlmgr GUI options</a>, Previous: <a href="#tlmgr-Main-display" accesskey="p" rel="prev">tlmgr Main display</a>, Up: <a href="#tlmgr-GUI-FOR-TLMGR" accesskey="u" rel="up">tlmgr GUI FOR TLMGR</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="Menu-bar"></span><h4 class="appendixsubsec">B.11.2 Menu bar</h4>

<p>The following entries can be found in the menu bar:
</p>
<dl compact="compact">
<dt><code>tlmgr</code> menu</dt>
<dd><span id="tlmgr-tlmgr-menu"></span>
<p>The items here load various repositories: the default as specified in
the TeX Live database, the default network repository, the repository
specified on the command line (if any), and an arbitrarily
manually-entered one.  Also has the so-necessary <code>quit</code> operation.
</p>
</dd>
<dt><code>Options menu</code></dt>
<dd><span id="tlmgr-Options-menu"></span>
<p>Provides access to several groups of options: <code>Paper</code> (configuration of
default paper sizes), <code>Platforms</code> (only on Unix, configuration of the
supported/installed platforms), <code>GUI Language</code> (select language used in
the GUI interface), and <code>General</code> (everything else).
</p>
<p>Several toggles are also here.  The first is <code>Expert options</code>, which is
set by default.  If you turn this off, the next time you start the GUI a
simplified screen will be shown that display only the most important
functionality.  This setting is saved in the configuration file of
<code>tlmgr</code>; see <a href="#tlmgr-CONFIGURATION-FILE-FOR-TLMGR">CONFIGURATION FILE FOR TLMGR</a> for details.
</p>
<p>The other toggles are all off by default: for debugging output, to
disable the automatic installation of new packages, and to disable the
automatic removal of packages deleted from the server.  Playing with the
choices of what is or isn&rsquo;t installed may lead to an inconsistent TeX Live
installation; e.g., when a package is renamed.
</p>
</dd>
<dt><code>Actions menu</code></dt>
<dd><span id="tlmgr-Actions-menu"></span>
<p>Provides access to several actions: update the filename database (aka
<code>ls-R</code>, <code>mktexlsr</code>, <code>texhash</code>), rebuild all formats (<code>fmtutil-sys
--all</code>), update the font map database (<code>updmap-sys</code>), restore from a backup
of a package, and use of symbolic links in system directories (not on
Windows).
</p>
<p>The final action is to remove the entire TeX Live installation (also not
on Windows).
</p>
</dd>
<dt><code>Help menu</code></dt>
<dd><span id="tlmgr-Help-menu"></span>
<p>Provides access to the TeX Live manual (also on the web at
<a href="https://tug.org/texlive/doc.html">https://tug.org/texlive/doc.html</a>) and the usual &ldquo;About&rdquo; box.
</p>
</dd>
</dl>

<hr>
<span id="tlmgr-GUI-options"></span><div class="header">
<p>
Previous: <a href="#tlmgr-Menu-bar" accesskey="p" rel="prev">tlmgr Menu bar</a>, Up: <a href="#tlmgr-GUI-FOR-TLMGR" accesskey="u" rel="up">tlmgr GUI FOR TLMGR</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="GUI-options"></span><h4 class="appendixsubsec">B.11.3 GUI options</h4>

<p>Some generic Perl/Tk options can be specified with <code>tlmgr gui</code> to
control the display:
</p>
<dl compact="compact">
<dt><code>-background</code> <em>color</em></dt>
<dd><span id="tlmgr-_002dbackground-color"></span>
<p>Set background color.
</p>
</dd>
<dt><code>-font &quot;</code> <em>fontname</em> <em>fontsize</em> <code>&quot;</code></dt>
<dd><span id="tlmgr-_002dfont-_0022-fontname-fontsize-_0022"></span>
<p>Set font, e.g., <code>tlmgr gui -font &quot;helvetica 18&quot;</code>.  The argument to
<code>-font</code> must be quoted, i.e., passed as a single string.
</p>
</dd>
<dt><code>-foreground</code> <em>color</em></dt>
<dd><span id="tlmgr-_002dforeground-color"></span>
<p>Set foreground color.
</p>
</dd>
<dt><code>-geometry</code> <em>geomspec</em></dt>
<dd><span id="tlmgr-_002dgeometry-geomspec"></span>
<p>Set the X geometry, e.g., <code>tlmgr gui -geometry 1024x512-0+0</code> creates
the window of (approximately) the given size in the upper-right corner
of the display.
</p>
</dd>
<dt><code>-xrm</code> <em>xresource</em></dt>
<dd><span id="tlmgr-_002dxrm-xresource"></span>
<p>Pass the arbitrary X resource string <em>xresource</em>.
</p>
</dd>
</dl>

<p>A few other obscure options are recognized but not mentioned here.  See
the Perl/Tk documentation (<a href="https://search.cpan.org/perldoc?Tk">https://search.cpan.org/perldoc?Tk</a>) for the
complete list, and any X documentation for general information.
</p>
<hr>
<span id="tlmgr-MACHINE_002dREADABLE-OUTPUT"></span><div class="header">
<p>
Next: <a href="#tlmgr-ENVIRONMENT-VARIABLES" accesskey="n" rel="next">tlmgr ENVIRONMENT VARIABLES</a>, Previous: <a href="#tlmgr-GUI-FOR-TLMGR" accesskey="p" rel="prev">tlmgr GUI FOR TLMGR</a>, Up: <a href="#tlmgr" accesskey="u" rel="up">tlmgr</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="MACHINE_002dREADABLE-OUTPUT"></span><h3 class="appendixsec">B.12 MACHINE-READABLE OUTPUT</h3>

<p>With the <code>--machine-readable</code> option, <code>tlmgr</code> writes to stdout in the
fixed line-oriented format described here, and the usual informational
messages for human consumption are written to stderr (normally they are
written to stdout).  The idea is that a program can get all the
information it needs by reading stdout.
</p>
<p>Currently this option only applies to the 
<a href="#tlmgr-update-_005boption_002e_002e_002e_005d-_005bpkg_002e_002e_002e_005d">update</a>,
<a href="#tlmgr-install-_005boption_002e_002e_002e_005d-pkg_002e_002e_002e">install</a>, and
<a href="#tlmgr-option">option</a> actions.
</p>
<table class="menu" border="0" cellspacing="0">
<tr><td align="left" valign="top">&bull; <a href="#tlmgr-Machine_002dreadable-update-and-install-output" accesskey="1">tlmgr Machine-readable <code>update</code> and <code>install</code> output</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
<tr><td align="left" valign="top">&bull; <a href="#tlmgr-Machine_002dreadable-option-output" accesskey="2">tlmgr Machine-readable <code>option</code> output</a></td><td>&nbsp;&nbsp;</td><td align="left" valign="top">
</td></tr>
</table>

<hr>
<span id="tlmgr-Machine_002dreadable-update-and-install-output"></span><div class="header">
<p>
Next: <a href="#tlmgr-Machine_002dreadable-option-output" accesskey="n" rel="next">tlmgr Machine-readable <code>option</code> output</a>, Up: <a href="#tlmgr-MACHINE_002dREADABLE-OUTPUT" accesskey="u" rel="up">tlmgr MACHINE-READABLE OUTPUT</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="Machine_002dreadable-update-and-install-output"></span><h4 class="appendixsubsec">B.12.1 Machine-readable <code>update</code> and <code>install</code> output</h4>

<p>The output format is as follows:
</p>
<pre class="verbatim">  fieldname &quot;\t&quot; value
  ...
  &quot;end-of-header&quot;
  pkgname status localrev serverrev size runtime esttot
  ...
  &quot;end-of-updates&quot;
  other output from post actions, not in machine readable form
</pre>
<p>The header section currently has two fields: <code>location-url</code> (the
repository source from which updates are being drawn), and
<code>total-bytes</code> (the total number of bytes to be downloaded).
</p>
<p>The <em>localrev</em> and <em>serverrev</em> fields for each package are the
revision numbers in the local installation and server repository,
respectively.  The <em>size</em> field is the number of bytes to be
downloaded, i.e., the size of the compressed tar file for a network
installation, not the unpacked size. The runtime and esttot fields 
are only present for updated and auto-install packages, and contain
the currently passed time since start of installation/updates
and the estimated total time.
</p>
<p>Line endings may be either LF or CRLF depending on the current platform.
</p>
<dl compact="compact">
<dt><code>location-url</code> <em>location</em></dt>
<dd><span id="tlmgr-location_002durl-location"></span>
<p>The <em>location</em> may be a url (including <code>file:///foo/bar/...</code>), or a
directory name (<code>/foo/bar</code>).  It is the package repository from which
the new package information was drawn.
</p>
</dd>
<dt><code>total-bytes</code> <em>count</em></dt>
<dd><span id="tlmgr-total_002dbytes-count"></span>
<p>The <em>count</em> is simply a decimal number, the sum of the sizes of all the
packages that need updating or installing (which are listed subsequently).
</p>
</dd>
</dl>

<p>Then comes a line with only the literal string <code>end-of-header</code>.
</p>
<p>Each following line until a line with literal string <code>end-of-updates</code>
reports on one package.  The fields on
each line are separated by a tab.  Here are the fields.
</p>
<dl compact="compact">
<dt><em>pkgname</em></dt>
<dd><span id="tlmgr-pkgname"></span>
<p>The TeX Live package identifier, with a possible platform suffix for
executables.  For instance, <code>pdftex</code> and <code>pdftex.i386-linux</code> are given
as two separate packages, one on each line.
</p>
</dd>
<dt><em>status</em></dt>
<dd><span id="tlmgr-status"></span>
<p>The status of the package update.  One character, as follows:
</p>
<dl compact="compact">
<dt><code>d</code></dt>
<dd><span id="tlmgr-d"></span>
<p>The package was removed on the server.
</p>
</dd>
<dt><code>f</code></dt>
<dd><span id="tlmgr-f"></span>
<p>The package was removed in the local installation, even though a
collection depended on it.  (E.g., the user ran <code>tlmgr remove
--force</code>.)
</p>
</dd>
<dt><code>u</code></dt>
<dd><span id="tlmgr-u"></span>
<p>Normal update is needed.
</p>
</dd>
<dt><code>r</code></dt>
<dd><span id="tlmgr-r"></span>
<p>Reversed non-update: the locally-installed version is newer than the
version on the server.
</p>
</dd>
<dt><code>a</code></dt>
<dd><span id="tlmgr-a"></span>
<p>Automatically-determined need for installation, the package is new on
the server and is (most probably) part of an installed collection.
</p>
</dd>
<dt><code>i</code></dt>
<dd><span id="tlmgr-i"></span>
<p>Package will be installed and isn&rsquo;t present in the local installation
(action install).
</p>
</dd>
<dt><code>I</code></dt>
<dd><span id="tlmgr-I"></span>
<p>Package is already present but will be reinstalled (action install).
</p>
</dd>
</dl>

</dd>
<dt><em>localrev</em></dt>
<dd><span id="tlmgr-localrev"></span>
<p>The revision number of the installed package, or <code>-</code> if it is not
present locally.
</p>
</dd>
<dt><em>serverrev</em></dt>
<dd><span id="tlmgr-serverrev"></span>
<p>The revision number of the package on the server, or <code>-</code> if it is not
present on the server.
</p>
</dd>
<dt><em>size</em></dt>
<dd><span id="tlmgr-size"></span>
<p>The size in bytes of the package on the server.  The sum of all the
package sizes is given in the <code>total-bytes</code> header field mentioned above.
</p>
</dd>
<dt><em>runtime</em></dt>
<dd><span id="tlmgr-runtime"></span>
<p>The run time since start of installations or updates.
</p>
</dd>
<dt><em>esttot</em></dt>
<dd><span id="tlmgr-esttot"></span>
<p>The estimated total time.
</p>
</dd>
</dl>

<hr>
<span id="tlmgr-Machine_002dreadable-option-output"></span><div class="header">
<p>
Previous: <a href="#tlmgr-Machine_002dreadable-update-and-install-output" accesskey="p" rel="prev">tlmgr Machine-readable <code>update</code> and <code>install</code> output</a>, Up: <a href="#tlmgr-MACHINE_002dREADABLE-OUTPUT" accesskey="u" rel="up">tlmgr MACHINE-READABLE OUTPUT</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="Machine_002dreadable-option-output"></span><h4 class="appendixsubsec">B.12.2 Machine-readable <code>option</code> output</h4>

<p>The output format is as follows:
</p>
<pre class="verbatim">  key &quot;\t&quot; value
</pre>
<p>If a value is not saved in the database the string <code>(not set)</code> is shown.
</p>
<p>If you are developing a program that uses this output, and find that
changes would be helpful, do not hesitate to write the mailing list.
</p>
<hr>
<span id="tlmgr-ENVIRONMENT-VARIABLES"></span><div class="header">
<p>
Next: <a href="#tlmgr-AUTHORS-AND-COPYRIGHT" accesskey="n" rel="next">tlmgr AUTHORS AND COPYRIGHT</a>, Previous: <a href="#tlmgr-MACHINE_002dREADABLE-OUTPUT" accesskey="p" rel="prev">tlmgr MACHINE-READABLE OUTPUT</a>, Up: <a href="#tlmgr" accesskey="u" rel="up">tlmgr</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="ENVIRONMENT-VARIABLES-1"></span><h3 class="appendixsec">B.13 ENVIRONMENT VARIABLES</h3>

<p><code>tlmgr</code> uses many of the standard TeX environment variables, as
reported by, e.g., <code>tlmgr conf</code> (<a href="#tlmgr-conf">conf</a>).
</p>
<p>In addition, for ease in scripting and debugging, <code>tlmgr</code> looks for the
following environment variables. These are not of interest for normal
user installations.
</p>
<dl compact="compact">
<dt><code>TEXLIVE_COMPRESSOR</code></dt>
<dd><span id="tlmgr-TEXLIVE_005fCOMPRESSOR"></span>
<p>This variable allows selecting a different compressor program for
backups and intermediate rollback containers. The order of selection is:
</p>
<ol>
<li> If the environment variable <code>TEXLIVE_COMPRESSOR</code> is
defined, use it; abort if it doesn&rsquo;t work. Possible values:
<code>lz4</code>, <code>gzip</code>, <code>xz</code>. The necessary options are added internally.

</li><li> If lz4 is available (either from the system or TL) and working, use that.

</li><li> If gzip is available (from the system) and working, use that.

</li><li> If xz is available (either from the system or TL) and working, use that.

</li></ol>

<p>lz4 and gzip are faster in creating tlmgr&rsquo;s local backups, hence they
are preferred. The unconditional use of xz for the tlnet containers is
unaffected, to minimize download sizes.
</p>
</dd>
<dt><code>TEXLIVE_DOWNLOADER</code></dt>
<dd><span id="tlmgr-TEXLIVE_005fDOWNLOADER"></span>
</dd>
<dt><code>TL_DOWNLOAD_PROGRAM</code></dt>
<dd><span id="tlmgr-TL_005fDOWNLOAD_005fPROGRAM"></span>
</dd>
<dt><code>TL_DOWNLOAD_ARGS</code></dt>
<dd><span id="tlmgr-TL_005fDOWNLOAD_005fARGS"></span>
<p>These options allow selecting different download programs then the ones
automatically selected by the installer. The order of selection is:
</p>
<ol>
<li> If the environment variable <code>TEXLIVE_DOWNLOADER</code> is defined, use it;
abort if the specified program doesn&rsquo;t work. Possible values: <code>lwp</code>,
<code>curl</code>, <code>wget</code>. The necessary options are added internally.

</li><li> If the environment variable <code>TL_DOWNLOAD_PROGRAM</code> is
defined (can be any value), use it together with
<code>TL_DOWNLOAD_ARGS</code>; abort if it doesn&rsquo;t work.

</li><li> If LWP is available and working, use that (by far the most
efficient method, as it supports persistent downloads).

</li><li> If curl is available (from the system) and working, use that.

</li><li> If wget is available (either from the system or TL) and working, use that.

</li></ol>

<p>TL provides <code>wget</code> binaries for platforms where necessary, so some
download method should always be available.
</p>
</dd>
<dt><code>TEXLIVE_PREFER_OWN</code></dt>
<dd><span id="tlmgr-TEXLIVE_005fPREFER_005fOWN"></span>
<p>By default, compression and download programs provided by the system,
i.e., found along <code>PATH</code> are preferred over those shipped with TeX
Live.
</p>
<p>This can create problems with systems that are too old, and so can be
overridden by setting the environment variable <code>TEXLIVE_PREFER_OWN</code> to
1. In this case, executables shipped with TL will be preferred.
</p>
<p>Extra compression/download programs not provided by TL, such as gzip,
lwp, and curl, are still checked for on the system and used if
available, per the above. <code>TEXLIVE_PREFER_OWN</code> only applies when the
program being checked for is shipped with TL, namely the lz4 and
xz compressors and wget downloader.
</p>
<p>Exception: on Windows, the <code>tar.exe</code> shipped with TL is always used,
regardless of any setting.
</p>
</dd>
</dl>

<hr>
<span id="tlmgr-AUTHORS-AND-COPYRIGHT"></span><div class="header">
<p>
Previous: <a href="#tlmgr-ENVIRONMENT-VARIABLES" accesskey="p" rel="prev">tlmgr ENVIRONMENT VARIABLES</a>, Up: <a href="#tlmgr" accesskey="u" rel="up">tlmgr</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="AUTHORS-AND-COPYRIGHT-1"></span><h3 class="appendixsec">B.14 AUTHORS AND COPYRIGHT</h3>

<p>This script and its documentation were written for the TeX Live
distribution (<a href="https://tug.org/texlive">https://tug.org/texlive</a>) and both are licensed under the
GNU General Public License Version 2 or later.
</p>
<p>$Id: tlmgr.pl 54118 2020-03-05 22:27:22Z karl $
</p>

<hr>
<span id="Index"></span><div class="header">
<p>
Previous: <a href="#tlmgr" accesskey="p" rel="prev">tlmgr</a>, Up: <a href="#Top" accesskey="u" rel="up">Top</a> &nbsp; [<a href="#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="#Index" title="Index" rel="index">Index</a>]</p>
</div>
<span id="Index-1"></span><h2 class="unnumbered">Index</h2>

<table><tr><th valign="top">Jump to: &nbsp; </th><td><a class="summary-letter" href="#Index_cp_symbol-1"><b>-</b></a>
 &nbsp; 
<br>
<a class="summary-letter" href="#Index_cp_letter-A"><b>A</b></a>
 &nbsp; 
<a class="summary-letter" href="#Index_cp_letter-B"><b>B</b></a>
 &nbsp; 
<a class="summary-letter" href="#Index_cp_letter-C"><b>C</b></a>
 &nbsp; 
<a class="summary-letter" href="#Index_cp_letter-D"><b>D</b></a>
 &nbsp; 
<a class="summary-letter" href="#Index_cp_letter-E"><b>E</b></a>
 &nbsp; 
<a class="summary-letter" href="#Index_cp_letter-F"><b>F</b></a>
 &nbsp; 
<a class="summary-letter" href="#Index_cp_letter-G"><b>G</b></a>
 &nbsp; 
<a class="summary-letter" href="#Index_cp_letter-I"><b>I</b></a>
 &nbsp; 
<a class="summary-letter" href="#Index_cp_letter-K"><b>K</b></a>
 &nbsp; 
<a class="summary-letter" href="#Index_cp_letter-L"><b>L</b></a>
 &nbsp; 
<a class="summary-letter" href="#Index_cp_letter-M"><b>M</b></a>
 &nbsp; 
<a class="summary-letter" href="#Index_cp_letter-N"><b>N</b></a>
 &nbsp; 
<a class="summary-letter" href="#Index_cp_letter-O"><b>O</b></a>
 &nbsp; 
<a class="summary-letter" href="#Index_cp_letter-P"><b>P</b></a>
 &nbsp; 
<a class="summary-letter" href="#Index_cp_letter-R"><b>R</b></a>
 &nbsp; 
<a class="summary-letter" href="#Index_cp_letter-S"><b>S</b></a>
 &nbsp; 
<a class="summary-letter" href="#Index_cp_letter-T"><b>T</b></a>
 &nbsp; 
<a class="summary-letter" href="#Index_cp_letter-U"><b>U</b></a>
 &nbsp; 
<a class="summary-letter" href="#Index_cp_letter-V"><b>V</b></a>
 &nbsp; 
<a class="summary-letter" href="#Index_cp_letter-W"><b>W</b></a>
 &nbsp; 
<a class="summary-letter" href="#Index_cp_letter-X"><b>X</b></a>
 &nbsp; 
<a class="summary-letter" href="#Index_cp_letter-Z"><b>Z</b></a>
 &nbsp; 
</td></tr></table>
<table class="index-cp" border="0">
<tr><td></td><th align="left">Index Entry</th><td>&nbsp;</td><th align="left"> Section</th></tr>
<tr><td colspan="4"> <hr></td></tr>
<tr><th id="Index_cp_symbol-1">-</th><td></td><td></td></tr>
<tr><td></td><td valign="top"><a href="#index-_002d_002dbindir-configure-option"><code>--bindir configure <span class="roman">option</span></code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#g_t_002d_002dprefix-_002d_002dbindir-_2026"><code>--prefix</code> <code>--bindir</code> &hellip;</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-_002d_002dbindir-configure-option-1"><code>--bindir configure <span class="roman">option</span></code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#g_t_002d_002denable_002dmultiplatform"><code>--enable-multiplatform</code></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-_002d_002dbuild_003dhost"><code>--build=<var>host</var></code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Cross-configuring">Cross configuring</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-_002d_002ddisable_002dall_002dpackages"><code>--disable-all-packages</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Build-one-package">Build one package</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-_002d_002ddisable_002dall_002dpkgs"><code>--disable-all-pkgs</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#g_t_002d_002ddisable_002dall_002dpkgs"><code>--disable-all-pkgs</code></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-_002d_002ddisable_002dbibtex8"><code>--disable-bibtex8</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Configure-options-for-texk_002fbibtex_002dx">Configure options for <samp>texk/bibtex-x</samp></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-_002d_002ddisable_002dbibtexu"><code>--disable-bibtexu</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Configure-options-for-texk_002fbibtex_002dx">Configure options for <samp>texk/bibtex-x</samp></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-_002d_002ddisable_002ddump_002dshare"><code>--disable-dump-share</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Configure-options-for-texk_002fweb2c">Configure options for <samp>texk/web2c</samp></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-_002d_002ddisable_002ddvipdfmx"><code>--disable-dvipdfmx</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Configure-options-for-texk_002fdvipdfm_002dx">Configure options for <samp>texk/dvipdfm-x</samp></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-_002d_002ddisable_002detex_002dsynctex"><code>--disable-etex-synctex</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Configure-options-for-texk_002fweb2c">Configure options for <samp>texk/web2c</samp></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-_002d_002ddisable_002dipc"><code>--disable-ipc</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Configure-options-for-texk_002fweb2c">Configure options for <samp>texk/web2c</samp></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-_002d_002ddisable_002dlargefile"><code>--disable-largefile</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#g_t_002d_002ddisable_002dlargefile"><code>--disable-largefile</code></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-_002d_002ddisable_002dlinked_002dscripts"><code>--disable-linked-scripts</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Configure-options-for-texk_002ftexlive">Configure options for <samp>texk/texlive</samp></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-_002d_002ddisable_002dmf_002dnowin"><code>--disable-mf-nowin</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Configure-options-for-texk_002fweb2c">Configure options for <samp>texk/web2c</samp></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-_002d_002ddisable_002dmissing"><code>--disable-missing</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#g_t_002d_002ddisable_002dmissing"><code>--disable-missing</code></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-_002d_002ddisable_002dnative_002dtexlive_002dbuild"><code>--disable-native-texlive-build</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#g_t_002d_002ddisable_002dnative_002dtexlive_002dbuild"><code>--disable-native-texlive-build</code></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-_002d_002ddisable_002dprog"><code>--disable-<var>prog</var></code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#g_t_002d_002denable_002dprog-_002d_002ddisable_002dprog"><code>--enable-<var>prog</var></code> <code>--disable-<var>prog</var></code></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-_002d_002ddisable_002dsynctex"><code>--disable-synctex</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Configure-options-for-texk_002fweb2c">Configure options for <samp>texk/web2c</samp></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-_002d_002ddisable_002dtex"><code>--disable-tex</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Configure-options-for-texk_002fweb2c">Configure options for <samp>texk/web2c</samp></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-_002d_002ddisable_002dweb_002dprogs"><code>--disable-web-progs</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Configure-options-for-texk_002fweb2c">Configure options for <samp>texk/web2c</samp></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-_002d_002ddisable_002dxdvipdfmx"><code>--disable-xdvipdfmx</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Configure-options-for-texk_002fdvipdfm_002dx">Configure options for <samp>texk/dvipdfm-x</samp></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-_002d_002denable_002d_002awin-for-Metafont-window-support"><code>--enable-*win <span class="roman">for Metafont window support</span></code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Configure-options-for-texk_002fweb2c">Configure options for <samp>texk/web2c</samp></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-_002d_002denable_002dauto_002dcore"><code>--enable-auto-core</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Configure-options-for-texk_002fweb2c">Configure options for <samp>texk/web2c</samp></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-_002d_002denable_002dcompiler_002dwarnings_003dlevel"><code>--enable-compiler-warnings=<var>level</var></code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#g_t_002d_002denable_002dcompiler_002dwarnings_003dlevel"><code>--enable-compiler-warnings=</code><var>level</var></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-_002d_002denable_002dcxx_002druntime_002dhack"><code>--enable-cxx-runtime-hack</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Macros-for-compilers">Macros for compilers</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-_002d_002denable_002detex"><code>--enable-etex</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Configure-options-for-texk_002fweb2c">Configure options for <samp>texk/web2c</samp></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-_002d_002denable_002dlibtool_002dhack"><code>--enable-libtool-hack</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Configure-options-for-texk_002fweb2c">Configure options for <samp>texk/web2c</samp></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-_002d_002denable_002dmaintainer_002dmode"><code>--enable-maintainer-mode</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Build-system-tools">Build system tools</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-_002d_002denable_002dmaintainer_002dmode-1"><code>--enable-maintainer-mode</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#g_t_002d_002denable_002dmaintainer_002dmode"><code>--enable-maintainer-mode</code></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-_002d_002denable_002dmissing-to-ignore-dependencies"><code>--enable-missing <span class="roman">to ignore dependencies</span></code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Build-one-package">Build one package</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-_002d_002denable_002dmktextfm_002ddefault"><code>--enable-mktextfm-default</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#kpathsea-library"><code>kpathsea</code> library</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-_002d_002denable_002dmultiplatform"><code>--enable-multiplatform</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#g_t_002d_002denable_002dmultiplatform"><code>--enable-multiplatform</code></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-_002d_002denable_002dprog"><code>--enable-<var>prog</var></code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#g_t_002d_002denable_002dprog-_002d_002ddisable_002dprog"><code>--enable-<var>prog</var></code> <code>--disable-<var>prog</var></code></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-_002d_002denable_002dshared"><code>--enable-shared</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#g_t_002d_002denable_002dshared"><code>--enable-shared</code></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-_002d_002denable_002dsilent_002drules"><code>--enable-silent-rules</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#g_t_002d_002denable_002dsilent_002drules"><code>--enable-silent-rules</code></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-_002d_002denable_002dtex_002dsynctex"><code>--enable-tex-synctex</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Configure-options-for-texk_002fweb2c">Configure options for <samp>texk/web2c</samp></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-_002d_002denable_002dtexlive_002dbuild"><code>--enable-texlive-build</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#g_t_002d_002ddisable_002dnative_002dtexlive_002dbuild"><code>--disable-native-texlive-build</code></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-_002d_002denable_002dxi2_002dscrolling"><code>--enable-xi2-scrolling</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Configure-options-for-texk_002fxdvik">Configure options for <samp>texk/xdvik</samp></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-_002d_002denable_002dxindy_002ddocs"><code>--enable-xindy-docs</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Configure-options-for-utils_002fxindy">Configure options for <samp>utils/xindy</samp></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-_002d_002denable_002dxindy_002drules"><code>--enable-xindy-rules</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Configure-options-for-utils_002fxindy">Configure options for <samp>utils/xindy</samp></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-_002d_002dhost_003dhost"><code>--host=<var>host</var></code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Cross-configuring">Cross configuring</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-_002d_002dlibdir-configure-option"><code>--libdir configure <span class="roman">option</span></code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#g_t_002d_002denable_002dmultiplatform"><code>--enable-multiplatform</code></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-_002d_002dno_002dclean-Build-option"><code>--no-clean Build <span class="roman">option</span></code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Build-problems">Build problems</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-_002d_002dprefix-configure-option"><code>--prefix configure <span class="roman">option</span></code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#g_t_002d_002dprefix-_002d_002dbindir-_2026"><code>--prefix</code> <code>--bindir</code> &hellip;</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-_002d_002dwith_002dbanner_002dadd_003dstr"><code>--with-banner-add=<var>str</var></code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Configure-options-for-texk_002fweb2c">Configure options for <samp>texk/web2c</samp></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-_002d_002dwith_002dclisp_002druntime_003dfilename"><code>--with-clisp-runtime=<var>filename</var></code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Configure-options-for-utils_002fxindy">Configure options for <samp>utils/xindy</samp></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-_002d_002dwith_002deditor_003dcmd"><code>--with-editor=<var>cmd</var></code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Configure-options-for-texk_002fweb2c">Configure options for <samp>texk/web2c</samp></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-_002d_002dwith_002dfontconfig_002dincludes_003ddir"><code>--with-fontconfig-includes=<var>dir</var></code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Configure-options-for-texk_002fweb2c">Configure options for <samp>texk/web2c</samp></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-_002d_002dwith_002dfontconfig_002dlibdir_003ddir"><code>--with-fontconfig-libdir=<var>dir</var></code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Configure-options-for-texk_002fweb2c">Configure options for <samp>texk/web2c</samp></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-_002d_002dwith_002dgs_003dfilename"><code>--with-gs=<var>filename</var></code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Configure-options-for-texk_002fxdvik">Configure options for <samp>texk/xdvik</samp></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-_002d_002dwith_002dlib_002dincludes_003ddir_002c-_002dlibdir"><code>--with-<var>lib</var>-includes=<var>dir</var><span class="roman">,</span> -libdir</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Library_002dspecific-configure-options">Library-specific configure options</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-_002d_002dwith_002dlibgs_002dincludes_002c-_002dlibdir"><code>--with-libgs-includes<span class="roman">,</span> -libdir</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Configure-options-for-texk_002fdvisvgm">Configure options for <samp>texk/dvisvgm</samp></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-_002d_002dwith_002dsystem_002dkpathsea"><code>--with-system-kpathsea</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#kpathsea-library"><code>kpathsea</code> library</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-_002d_002dwith_002dsystem_002dlib"><code>--with-system-<var>lib</var></code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Adding-a-new-generic-library-module">Adding a new generic library module</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-_002d_002dwith_002dsystem_002dlib-1"><code>--with-system-<var>lib</var></code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Library_002dspecific-configure-options">Library-specific configure options</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-_002d_002dwith_002dsystem_002dlibgs"><code>--with-system-libgs</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Configure-options-for-texk_002fdvisvgm">Configure options for <samp>texk/dvisvgm</samp></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-_002d_002dwith_002dsystem_002dpoppler"><code>--with-system-poppler</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Configure-options-for-system-poppler">Configure options for system <code>poppler</code></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-_002d_002dwith_002dsystem_002dxpdf"><code>--with-system-xpdf</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Configure-options-for-system-poppler">Configure options for system <code>poppler</code></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-_002d_002dwith_002dxdvi_002dx_002dtoolkit"><code>--with-xdvi-x-toolkit</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#xdvik-package"><code>xdvik</code> package</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-_002d_002dwith_002dxdvi_002dx_002dtoolkit_003dkit"><code>--with-xdvi-x-toolkit=<var>kit</var></code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Configure-options-for-texk_002fxdvik">Configure options for <samp>texk/xdvik</samp></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-_002d_002dwithout_002dlibgs"><code>--without-libgs</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Configure-options-for-texk_002fdvisvgm">Configure options for <samp>texk/dvisvgm</samp></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-_002d_002dwithout_002dln_002ds"><code>--without-ln-s</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#g_t_002d_002dwithout_002dln_002ds"><code>--without-ln-s</code></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-_002d_002dwithout_002dx"><code>--without-x</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#g_t_002d_002dwithout_002dx"><code>--without-x</code></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-_002dC-configure-option"><code>-C configure <span class="roman">option</span></code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Build-in-parallel">Build in parallel</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-_002dj-make-option"><code>-j make <span class="roman">option</span></code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Build-in-parallel">Build in parallel</a></td></tr>
<tr><td colspan="4"> <hr></td></tr>
<tr><th id="Index_cp_letter-A">A</th><td></td><td></td></tr>
<tr><td></td><td valign="top"><a href="#index-adapting-TeX-Live-for-distros">adapting TeX&nbsp;Live for distros</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Distro-builds">Distro builds</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-adding-a-new-generic-library">adding a new generic library</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Adding-a-new-generic-library-module">Adding a new generic library module</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-adding-a-new-program">adding a new program</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Adding-a-new-program-module">Adding a new program module</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-adding-a-new-TeX_002dspecific-library">adding a new TeX-specific library</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Adding-a-new-TeX_002dspecific-library-module">Adding a new TeX-specific library module</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-adding-to-TeX-Live">adding to TeX&nbsp;Live</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Extending-TeX-Live">Extending TeX&nbsp;Live</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-am_002f-top_002dlevel-directory"><samp>am/</samp> top-level directory</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Top_002dlevel-directories">Top-level directories</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-ANSI-C">ANSI C</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Declarations-and-definitions">Declarations and definitions</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-ApplicationServices-Mac-framework_002c-required-by-xetex"><code>ApplicationServices</code> Mac framework, required by <code>xetex</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Prerequisites">Prerequisites</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-asymptote"><code>asymptote</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Linked-scripts">Linked scripts</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-asymptote-1"><code>asymptote</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#asymptote"><code>asymptote</code></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-Autoconf">Autoconf</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Overview-of-build-system">Overview of build system</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-autoconf-macros">autoconf macros</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Autoconf-macros">Autoconf macros</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-Automake">Automake</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Overview-of-build-system">Overview of build system</a></td></tr>
<tr><td colspan="4"> <hr></td></tr>
<tr><th id="Index_cp_letter-B">B</th><td></td><td></td></tr>
<tr><td></td><td valign="top"><a href="#index-biber"><code>biber</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Linked-scripts">Linked scripts</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-bibtex_002dx"><code>bibtex-x</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Configure-options-for-texk_002fbibtex_002dx">Configure options for <samp>texk/bibtex-x</samp></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-bibtex8"><code>bibtex8</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Configure-options-for-texk_002fbibtex_002dx">Configure options for <samp>texk/bibtex-x</samp></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-bibtexu"><code>bibtexu</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Configure-options-for-texk_002fbibtex_002dx">Configure options for <samp>texk/bibtex-x</samp></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-BSD-distro">BSD distro</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Distro-builds">Distro builds</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-build-directory_002c-required">build directory, required</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Building">Building</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-build-iteration">build iteration</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Build-iteration">Build iteration</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-build-on-demand">build on demand</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Build-one-package">Build one package</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-build-one-engine">build one engine</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Build-one-engine">Build one engine</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-build-one-package">build one package</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Build-one-package">Build one package</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-build-problems">build problems</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Build-problems">Build problems</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-Build-script"><code>Build <span class="roman">script</span></code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Building">Building</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-build-system_002c-design-of">build system, design of</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Overview-of-build-system">Overview of build system</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-build_002daux_002f-top_002dlevel-directory"><samp>build-aux/</samp> top-level directory</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Top_002dlevel-directories">Top-level directories</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-BUILDCC_002c-BUILDCFLAGS_002c-_2026"><code>BUILDCC<span class="roman">,</span> BUILDCFLAGS<span class="roman">, &hellip;</span></code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Cross-configuring">Cross configuring</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-building">building</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Building">Building</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-building-a-distribution">building a distribution</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Build-distribution">Build distribution</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-building-in-parallel">building in parallel</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Build-in-parallel">Build in parallel</a></td></tr>
<tr><td colspan="4"> <hr></td></tr>
<tr><th id="Index_cp_letter-C">C</th><td></td><td></td></tr>
<tr><td></td><td valign="top"><a href="#index-C_002b_002b11_002c-removing-dependent-sources">C++11, removing dependent sources</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Build-one-package">Build one package</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-C_002b_002b11_002c-required">C++11, required</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Prerequisites">Prerequisites</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-C_002c-ANSI_002c-required">C, ANSI, required</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Declarations-and-definitions">Declarations and definitions</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-C99_002c-avoided">C99, avoided</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Declarations-and-definitions">Declarations and definitions</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-cache-file_002c-for-configure">cache file, for <code>configure</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Build-in-parallel">Build in parallel</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-cache-for-configure">cache for <code>configure</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Build-in-parallel">Build in parallel</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-callexe_002ec"><code>callexe.c</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Macros-for-Windows">Macros for Windows</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-CC"><code>CC</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Variables-for-configure">Variables for configure</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-CC_003dc_002dcompiler"><code>CC=<var>c-compiler</var></code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Build-one-package">Build one package</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-CC_005fBUILD"><code>CC_BUILD</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Cross-problems">Cross problems</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-chktex"><code>chktex</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Declarations-and-definitions">Declarations and definitions</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-clisp"><code>clisp</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Variables-for-configure">Variables for configure</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-CLISP-1"><code>CLISP</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Variables-for-configure">Variables for configure</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-CLISP">CLISP</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Configure-options-for-utils_002fxindy">Configure options for <samp>utils/xindy</samp></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-clisp_002c-required-by-xindy"><code>clisp</code>, required by <code>xindy</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Prerequisites">Prerequisites</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-Cocoa-Mac-framework_002c-required-by-xetex"><code>Cocoa</code> Mac framework, required by <code>xetex</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Prerequisites">Prerequisites</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-coding-conventions">coding conventions</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Coding-conventions">Coding conventions</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-compilers_002c-C-and-C_002b_002b11">compilers, C and C++11</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Prerequisites">Prerequisites</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-config_002eguess_002c-config_002esub_002c-_2026"><code>config.guess<span class="roman">,</span> config.sub, &hellip;</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Top_002dlevel-directories">Top-level directories</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-configure-options"><code>configure</code> options</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Configure-options">Configure options</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-configure-options_002c-for-bibtex_002dx"><code>configure</code> options, for <code>bibtex-x</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Configure-options-for-texk_002fbibtex_002dx">Configure options for <samp>texk/bibtex-x</samp></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-configure-options_002c-for-dvipdfm_002dx"><code>configure</code> options, for <code>dvipdfm-x</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Configure-options-for-texk_002fdvipdfm_002dx">Configure options for <samp>texk/dvipdfm-x</samp></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-configure-options_002c-for-dvisvgm"><code>configure</code> options, for <samp>dvisvgm</samp></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Configure-options-for-texk_002fdvisvgm">Configure options for <samp>texk/dvisvgm</samp></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-configure-options_002c-for-kpathsea"><code>configure</code> options, for <code>kpathsea</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Configure-options-for-kpathsea">Configure options for <code>kpathsea</code></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-configure-options_002c-for-system-poppler"><code>configure</code> options, for system <code>poppler</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Configure-options-for-system-poppler">Configure options for system <code>poppler</code></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-configure-options_002c-for-texk_002ftexlive"><code>configure</code> options, for <samp>texk/texlive</samp></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Configure-options-for-texk_002ftexlive">Configure options for <samp>texk/texlive</samp></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-configure-options_002c-for-web2c"><code>configure</code> options, for <code>web2c</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Configure-options-for-texk_002fweb2c">Configure options for <samp>texk/web2c</samp></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-configure-options_002c-for-xdvik"><code>configure</code> options, for <samp>xdvik</samp></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Configure-options-for-texk_002fxdvik">Configure options for <samp>texk/xdvik</samp></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-configure-options_002c-for-xindy"><code>configure</code> options, for <samp>xindy</samp></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Configure-options-for-utils_002fxindy">Configure options for <samp>utils/xindy</samp></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-configure-options_002c-global"><code>configure</code> options, global</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Global-configure-options">Global configure options</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-configure-options_002c-library_002dspecific"><code>configure</code> options, library-specific</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Library_002dspecific-configure-options">Library-specific configure options</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-configure-options_002c-program_002dspecific"><code>configure</code> options, program-specific</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Program_002dspecific-configure-options">Program-specific configure options</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-configure-variables"><code>configure</code> variables</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Variables-for-configure">Variables for configure</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-configuring_002c-for-cross-compilation">configuring, for cross compilation</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Cross-configuring">Cross configuring</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-const"><code>const</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Const">Const</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-continuous-integration">continuous integration</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Continuous-integration">Continuous integration</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-conventions_002c-coding">conventions, coding</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Coding-conventions">Coding conventions</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-CPPFLAGS"><code>CPPFLAGS</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Variables-for-configure">Variables for configure</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-cross-compilation">cross compilation</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Cross-compilation">Cross compilation</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-cross-compilation-configuring">cross compilation configuring</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Cross-configuring">Cross configuring</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-cross-compilation-problems">cross compilation problems</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Cross-problems">Cross problems</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-cross-compilation_002c-with-host-binary">cross compilation, with host binary</a>:</td><td>&nbsp;</td><td valign="top"><a href="#xdvik-package"><code>xdvik</code> package</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-ctangle"><code>ctangle</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Cross-problems">Cross problems</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-CXX"><code>CXX</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Variables-for-configure">Variables for configure</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-CXX_003dc_002b_002b_002dcompiler"><code>CXX=<var>c++-compiler</var></code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Build-one-package">Build one package</a></td></tr>
<tr><td colspan="4"> <hr></td></tr>
<tr><th id="Index_cp_letter-D">D</th><td></td><td></td></tr>
<tr><td></td><td valign="top"><a href="#index-declarations-and-definitions_002c-in-source-code">declarations and definitions, in source code</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Declarations-and-definitions">Declarations and definitions</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-declarations-before-statements_002c-avoiding">declarations before statements, avoiding</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Declarations-and-definitions">Declarations and definitions</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-dependencies_002c-with-several-output-files">dependencies, with several output files</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Build-in-parallel">Build in parallel</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-DESTDIR"><code>DESTDIR</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#g_t_002d_002dprefix-_002d_002dbindir-_2026"><code>--prefix</code> <code>--bindir</code> &hellip;</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-directories_002c-for-installation">directories, for installation</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Installation-directories">Installation directories</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-directories_002c-top_002dlevel">directories, top-level</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Top_002dlevel-directories">Top-level directories</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-discards-qualifiers-warning">discards qualifiers warning</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Const">Const</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-dist-and-distcheck-targets-for-make"><code>dist</code> and <code>distcheck</code> targets for <code>make</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Build-distribution">Build distribution</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-distribution-tarball_002c-making">distribution tarball, making</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Build-distribution">Build distribution</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-distro_002c-building-for">distro, building for</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Distro-builds">Distro builds</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-dvipdfm_002dx"><code>dvipdfm-x</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Configure-options-for-texk_002fdvipdfm_002dx">Configure options for <samp>texk/dvipdfm-x</samp></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-dvipdfmx"><code>dvipdfmx</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Configure-options-for-texk_002fdvipdfm_002dx">Configure options for <samp>texk/dvipdfm-x</samp></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-dvisvgm"><code>dvisvgm</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Configure-options-for-texk_002fdvisvgm">Configure options for <samp>texk/dvisvgm</samp></a></td></tr>
<tr><td colspan="4"> <hr></td></tr>
<tr><th id="Index_cp_letter-E">E</th><td></td><td></td></tr>
<tr><td></td><td valign="top"><a href="#index-engine_002c-building-one">engine, building one</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Build-one-engine">Build one engine</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-environment-variables_002c-for-configure">environment variables, for <code>configure</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Configure-options">Configure options</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-exec_005fprefix"><code>exec_prefix</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#g_t_002d_002denable_002dmultiplatform"><code>--enable-multiplatform</code></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-extending-TeX-Live">extending TeX&nbsp;Live</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Extending-TeX-Live">Extending TeX&nbsp;Live</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-extern-functions"><code>extern</code> functions</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Declarations-and-definitions">Declarations and definitions</a></td></tr>
<tr><td colspan="4"> <hr></td></tr>
<tr><th id="Index_cp_letter-F">F</th><td></td><td></td></tr>
<tr><td></td><td valign="top"><a href="#index-failure-to-build">failure to build</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Build-problems">Build problems</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-flags_002c-macros-for-library-and-header">flags, macros for library and header</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Macros-for-library-and-header-flags">Macros for library and header flags</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-fontconfig-library_002c-required-by-xetex"><code>fontconfig</code> library, required by <code>xetex</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Prerequisites">Prerequisites</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-FreeType">FreeType</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Prerequisites">Prerequisites</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-freetype-cross-compiling"><code>freetype</code> cross compiling</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Cross-problems">Cross problems</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-freetype-library"><code>freetype <span class="roman">library</span></code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#freetype-library"><code>freetype</code> library</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-freetype_002dconfig"><code>freetype-config</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#freetype-library"><code>freetype</code> library</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-freetype_002dconfig-1"><code>freetype-config</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Variables-for-configure">Variables for configure</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-FT2_005fCONFIG"><code>FT2_CONFIG</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Variables-for-configure">Variables for configure</a></td></tr>
<tr><td colspan="4"> <hr></td></tr>
<tr><th id="Index_cp_letter-G">G</th><td></td><td></td></tr>
<tr><td></td><td valign="top"><a href="#index-gcc_002c-default-compilers"><code>gcc<span class="roman">, default compilers</span></code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Build-one-package">Build one package</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-general-setup-macros">general setup macros</a>:</td><td>&nbsp;</td><td valign="top"><a href="#General-setup-macros">General setup macros</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-generic-library-module_002c-adding">generic library module, adding</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Adding-a-new-generic-library-module">Adding a new generic library module</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-Ghostscript-location-for-Xdvik">Ghostscript location for Xdvik</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Configure-options-for-texk_002fxdvik">Configure options for <samp>texk/xdvik</samp></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-git_002dsvn"><code>git-svn</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Transfer-from-Subversion-to-Github">Transfer from Subversion to Github</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-global-configure-options">global <code>configure</code> options</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Global-configure-options">Global configure options</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-gmake_002c-required"><code>gmake</code>, required</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Prerequisites">Prerequisites</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-GNU-make_002c-required">GNU <code>make</code>, required</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Prerequisites">Prerequisites</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-GNU-tools_002c-needed-for-building">GNU tools, needed for building</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Build-system-tools">Build system tools</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-GNU_002fLinux-distro">GNU/Linux distro</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Distro-builds">Distro builds</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-Gnulib_002c-used-for-common-files">Gnulib, used for common files</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Top_002dlevel-directories">Top-level directories</a></td></tr>
<tr><td colspan="4"> <hr></td></tr>
<tr><th id="Index_cp_letter-I">I</th><td></td><td></td></tr>
<tr><td></td><td valign="top"><a href="#index-ICU-cross-compiling">ICU cross compiling</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Cross-problems">Cross problems</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-ICU-libraries">ICU libraries</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Variables-for-configure">Variables for configure</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-icu_002dconfig"><code>icu-config</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Variables-for-configure">Variables for configure</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-ICU_005fCONFIG"><code>ICU_CONFIG</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Variables-for-configure">Variables for configure</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-infrastructure_002c-tools-needed-for">infrastructure, tools needed for</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Build-system-tools">Build system tools</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-inst_002f-top_002dlevel-directory"><samp>inst/</samp> top-level directory</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Top_002dlevel-directories">Top-level directories</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-install_002dtl_002c-TeX-Live-installer"><code>install-tl<span class="roman">, TeX&nbsp;Live installer</span></code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Installing">Installing</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-installation-directories">installation directories</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Installation-directories">Installation directories</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-installing">installing</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Installing">Installing</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-interprocess-communication">interprocess communication</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Configure-options-for-texk_002fweb2c">Configure options for <samp>texk/web2c</samp></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-introduction">introduction</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Introduction">Introduction</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-iteration-through-sources_002c-by-configure-and-make">iteration through sources, by <code>configure</code> and <code>make</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Build-iteration">Build iteration</a></td></tr>
<tr><td colspan="4"> <hr></td></tr>
<tr><th id="Index_cp_letter-K">K</th><td></td><td></td></tr>
<tr><td></td><td valign="top"><a href="#index-kpathsea-library"><code>kpathsea <span class="roman">library</span></code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#kpathsea-library"><code>kpathsea</code> library</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-kpathsea_002eac"><code>kpathsea.ac</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#kpathsea-library"><code>kpathsea</code> library</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-kpse_002dlibpng_002dflags_002em4"><code>kpse-libpng-flags.m4</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#png-library"><code>png</code> library</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-kpse_002dpkgs_002em4"><code>kpse-pkgs.m4</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Overview-of-build-system">Overview of build system</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-kpse_002dzlib_002dflags_002em4"><code>kpse-zlib-flags.m4</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#zlib-library"><code>zlib</code> library</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-kpsewhich"><code>kpsewhich</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Variables-for-configure">Variables for configure</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-KPSEWHICH"><code>KPSEWHICH</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Variables-for-configure">Variables for configure</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-KPSE_005fADD_005fFLAGS"><code>KPSE_ADD_FLAGS</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Macros-for-library-and-header-flags">Macros for library and header flags</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-KPSE_005fALL_005fSYSTEM_005fFLAGS"><code>KPSE_ALL_SYSTEM_FLAGS</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Adding-a-new-generic-library-module">Adding a new generic library module</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-KPSE_005fBASIC"><code>KPSE_BASIC</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#General-setup-macros">General setup macros</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-KPSE_005fCHECK_005fLATEX"><code>KPSE_CHECK_LATEX</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Macros-for-programs">Macros for programs</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-KPSE_005fCHECK_005fPDFLATEX"><code>KPSE_CHECK_PDFLATEX</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Macros-for-programs">Macros for programs</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-KPSE_005fCHECK_005fPERL"><code>KPSE_CHECK_PERL</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Macros-for-programs">Macros for programs</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-KPSE_005fCHECK_005fWIN32"><code>KPSE_CHECK_WIN32</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Macros-for-Windows">Macros for Windows</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-KPSE_005fCOMMON"><code>KPSE_COMMON</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#General-setup-macros">General setup macros</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-KPSE_005fCOMPILER_005fVISIBILITY"><code>KPSE_COMPILER_VISIBILITY</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Macros-for-compilers">Macros for compilers</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-KPSE_005fCOMPILER_005fWARNINGS"><code>KPSE_COMPILER_WARNINGS</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Macros-for-compilers">Macros for compilers</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-KPSE_005fCOND_005fMINGW32"><code>KPSE_COND_MINGW32</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Macros-for-Windows">Macros for Windows</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-KPSE_005fCOND_005fWIN32"><code>KPSE_COND_WIN32</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Macros-for-Windows">Macros for Windows</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-KPSE_005fCOND_005fWIN32_005fWRAP"><code>KPSE_COND_WIN32_WRAP</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Macros-for-Windows">Macros for Windows</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-kpse_005fcv_005fcxx_005fhack"><code>kpse_cv_cxx_hack</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Macros-for-compilers">Macros for compilers</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-kpse_005fcv_005fhave_005fwin32"><code>kpse_cv_have_win32</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Macros-for-Windows">Macros for Windows</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-kpse_005fcv_005fvisibility_005fc_005bxx_005dflags"><code>kpse_cv_visibility_c[xx]flags</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Macros-for-compilers">Macros for compilers</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-kpse_005fcv_005fwarning_005fcflags"><code>kpse_cv_warning_cflags</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Macros-for-compilers">Macros for compilers</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-KPSE_005fCXX_005fHACK"><code>KPSE_CXX_HACK</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Macros-for-compilers">Macros for compilers</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-KPSE_005fENABLE_005fPROG"><code>KPSE_ENABLE_PROG</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Adding-a-new-program-module">Adding a new program module</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-KPSE_005fLARGEFILE"><code>KPSE_LARGEFILE</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Macros-for-libraries">Macros for libraries</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-KPSE_005fLIBPNG_005fFLAGS"><code>KPSE_LIBPNG_FLAGS</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Macros-for-library-and-header-flags">Macros for library and header flags</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-KPSE_005fLIBPNG_005fFLAGS-1"><code>KPSE_LIBPNG_FLAGS</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#png-library"><code>png</code> library</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-kpse_005flibs_005fpkgs"><code>kpse_libs_pkgs</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Adding-a-new-generic-library-module">Adding a new generic library module</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-KPSE_005fLIB_005fFLAGS"><code>KPSE_<var>LIB</var>_FLAGS</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Macros-for-library-and-header-flags">Macros for library and header flags</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-KPSE_005fLIB_005fFLAGS-1"><code>KPSE_<var>LIB</var>_FLAGS</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Adding-a-new-generic-library-module">Adding a new generic library module</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-KPSE_005fLIB_005fSYSTEM_005fFLAGS"><code>KPSE_<var>LIB</var>_SYSTEM_FLAGS</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Adding-a-new-generic-library-module">Adding a new generic library module</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-KPSE_005fPROG_005fLEX"><code>KPSE_PROG_LEX</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Macros-for-programs">Macros for programs</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-KPSE_005fRESTORE_005fFLAGS"><code>KPSE_RESTORE_FLAGS</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Macros-for-library-and-header-flags">Macros for library and header flags</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-kpse_005ftexk_005fpkgs"><code>kpse_texk_pkgs</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Adding-a-new-program-module">Adding a new program module</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-kpse_005ftexlibs_005fpkgs"><code>kpse_texlibs_pkgs</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Adding-a-new-TeX_002dspecific-library-module">Adding a new TeX-specific library module</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-KPSE_005fTRY_005fLIB"><code>KPSE_TRY_LIB</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#png-library"><code>png</code> library</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-KPSE_005fTRY_005fLIB-1"><code>KPSE_TRY_LIB</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Adding-a-new-generic-library-module">Adding a new generic library module</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-KPSE_005fTRY_005fLIBXX"><code>KPSE_TRY_LIBXX</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#png-library"><code>png</code> library</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-KPSE_005fTRY_005fLIBXX-1"><code>KPSE_TRY_LIBXX</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Adding-a-new-generic-library-module">Adding a new generic library module</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-kpse_005futils_005fpkgs"><code>kpse_utils_pkgs</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Adding-a-new-program-module">Adding a new program module</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-KPSE_005fWIN32_005fCALL"><code>KPSE_WIN32_CALL</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Macros-for-Windows">Macros for Windows</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-KPSE_005fWITH_005fLIB"><code>KPSE_WITH_LIB</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Adding-a-new-generic-library-module">Adding a new generic library module</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-KPSE_005fWITH_005fTEXLIB"><code>KPSE_WITH_TEXLIB</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Adding-a-new-TeX_002dspecific-library-module">Adding a new TeX-specific library module</a></td></tr>
<tr><td colspan="4"> <hr></td></tr>
<tr><th id="Index_cp_letter-L">L</th><td></td><td></td></tr>
<tr><td></td><td valign="top"><a href="#index-large-file-support">large file support</a>:</td><td>&nbsp;</td><td valign="top"><a href="#g_t_002d_002ddisable_002dlargefile"><code>--disable-largefile</code></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-LATEX"><code>LATEX</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Variables-for-configure">Variables for configure</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-layout-of-sources">layout of sources</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Layout-and-infrastructure">Layout and infrastructure</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-LFS-_0028large-file-support_0029">LFS (large file support)</a>:</td><td>&nbsp;</td><td valign="top"><a href="#g_t_002d_002ddisable_002dlargefile"><code>--disable-largefile</code></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-libexpat_002c-dependency-of-libfontconfig"><code>libexpat<span class="roman">, dependency of <code>libfontconfig</code></span></code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Configure-options-for-texk_002fweb2c">Configure options for <samp>texk/web2c</samp></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-libfontconfig_002c-hack-for-avoiding-linking-dependencies"><code>libfontconfig<span class="roman">, hack for avoiding linking dependencies</span></code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Configure-options-for-texk_002fweb2c">Configure options for <samp>texk/web2c</samp></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-libfreetype"><code>libfreetype</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Variables-for-configure">Variables for configure</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-libfreetype_002c-and-const"><code>libfreetype</code>, and <code>const</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Const">Const</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-libpng-library"><code>libpng <span class="roman">library</span></code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#png-library"><code>png</code> library</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-library-module_002c-generic_002c-adding">library module, generic, adding</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Adding-a-new-generic-library-module">Adding a new generic library module</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-library-module_002c-TeX_002dspecific_002c-adding">library module, TeX-specific, adding</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Adding-a-new-TeX_002dspecific-library-module">Adding a new TeX-specific library module</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-library-modules">library modules</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Library-modules">Library modules</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-library_002dspecific-configure-options">library-specific <code>configure</code> options</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Library_002dspecific-configure-options">Library-specific configure options</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-libsigsegv_002c-required-by-xindy"><code>libsigsegv</code>, required by <code>xindy</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Prerequisites">Prerequisites</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-libstc_002b_002b_002c-statically-linking"><code>libstc++<span class="roman">, statically linking</span></code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Macros-for-compilers">Macros for compilers</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-Libtool">Libtool</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Overview-of-build-system">Overview of build system</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-libtool_002c-hack-for-avoiding-excessive-linking"><code>libtool<span class="roman">, hack for avoiding excessive linking</span></code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Configure-options-for-texk_002fweb2c">Configure options for <samp>texk/web2c</samp></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-libXt"><code>libXt</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Configure-options-for-texk_002fweb2c">Configure options for <samp>texk/web2c</samp></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-linked-scripts">linked scripts</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Linked-scripts">Linked scripts</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-linking-C_002b_002b-libraries-statically">linking C++ libraries statically</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Macros-for-compilers">Macros for compilers</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-lisp_002erun_002c-lisp_002eexe"><code>lisp.run<span class="roman">,</span> lisp.exe</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Configure-options-for-utils_002fxindy">Configure options for <samp>utils/xindy</samp></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-LittleEndian-architectures">LittleEndian architectures</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Configure-options-for-texk_002fweb2c">Configure options for <samp>texk/web2c</samp></a></td></tr>
<tr><td colspan="4"> <hr></td></tr>
<tr><th id="Index_cp_letter-M">M</th><td></td><td></td></tr>
<tr><td></td><td valign="top"><a href="#index-m4_002f-top_002dlevel-directory"><samp>m4/</samp> top-level directory</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Top_002dlevel-directories">Top-level directories</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-macros_002c-for-compilers">macros, for compilers</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Macros-for-compilers">Macros for compilers</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-macros_002c-for-libraries">macros, for libraries</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Macros-for-libraries">Macros for libraries</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-macros_002c-for-library-and-header-flags">macros, for library and header flags</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Macros-for-library-and-header-flags">Macros for library and header flags</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-macros_002c-for-programs">macros, for programs</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Macros-for-programs">Macros for programs</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-macros_002c-for-Windows">macros, for Windows</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Macros-for-Windows">Macros for Windows</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-macros_002c-general-setup">macros, general setup</a>:</td><td>&nbsp;</td><td valign="top"><a href="#General-setup-macros">General setup macros</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-MAKE"><code>MAKE</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Variables-for-configure">Variables for configure</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-make-_002dt"><code>make -t</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Build-system-tools">Build system tools</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-make-rules_002c-verbose-vs_002e-silent"><code>make</code> rules, verbose vs. silent</a>:</td><td>&nbsp;</td><td valign="top"><a href="#g_t_002d_002denable_002dsilent_002drules"><code>--enable-silent-rules</code></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-mf_002dnowin"><code>mf-nowin</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Configure-options-for-texk_002fweb2c">Configure options for <samp>texk/web2c</samp></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-mingw32"><code>mingw32</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Cross-configuring">Cross configuring</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-MINGW32_002c-Automake-conditional"><code>MINGW32<span class="roman">, Automake conditional</span></code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Macros-for-Windows">Macros for Windows</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-mktex_002eac"><code>mktex.ac</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#kpathsea-library"><code>kpathsea</code> library</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-mktextfm"><code>mktextfm</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#kpathsea-library"><code>kpathsea</code> library</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-modules_002c-for-libraries">modules, for libraries</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Library-modules">Library modules</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-modules_002c-for-programs">modules, for programs</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Program-modules">Program modules</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-motif"><code>motif</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Configure-options-for-texk_002fxdvik">Configure options for <samp>texk/xdvik</samp></a></td></tr>
<tr><td colspan="4"> <hr></td></tr>
<tr><th id="Index_cp_letter-N">N</th><td></td><td></td></tr>
<tr><td></td><td valign="top"><a href="#index-native-cross-compilation">native cross compilation</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Cross-compilation">Cross compilation</a></td></tr>
<tr><td colspan="4"> <hr></td></tr>
<tr><th id="Index_cp_letter-O">O</th><td></td><td></td></tr>
<tr><td></td><td valign="top"><a href="#index-OBJCXX_003dobjc_002dcompiler"><code>OBJCXX=<var>objc-compiler</var></code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Build-one-package">Build one package</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-one-engine_002c-building">one engine, building</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Build-one-engine">Build one engine</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-one-package_002c-building">one package, building</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Build-one-package">Build one package</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-OpenGL_002c-required-for-Asymptote">OpenGL, required for Asymptote</a>:</td><td>&nbsp;</td><td valign="top"><a href="#asymptote"><code>asymptote</code></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-operating-system-distribution_002c-building-for">operating system distribution, building for</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Distro-builds">Distro builds</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-otangle"><code>otangle</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Cross-problems">Cross problems</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-overall-build-process">overall build process</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Building">Building</a></td></tr>
<tr><td colspan="4"> <hr></td></tr>
<tr><th id="Index_cp_letter-P">P</th><td></td><td></td></tr>
<tr><td></td><td valign="top"><a href="#index-parallel-build">parallel build</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Build-in-parallel">Build in parallel</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-paths_002c-for-installation">paths, for installation</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Installation-directories">Installation directories</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-PDF-files_002c-size-of">PDF files, size of</a>:</td><td>&nbsp;</td><td valign="top"><a href="#g_t_002d_002ddisable_002dlargefile"><code>--disable-largefile</code></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-PDFLATEX"><code>PDFLATEX</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Variables-for-configure">Variables for configure</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-PERL"><code>PERL</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Variables-for-configure">Variables for configure</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-perl_002c-required-by-web2c_002c-etc_002e"><code>perl</code>, required by <code>web2c</code>, etc.</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Prerequisites">Prerequisites</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-PKG_005fCONFIG"><code>PKG_CONFIG</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Variables-for-configure">Variables for configure</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-plain_002etex_002c-not-in-source-tree"><code>plain.tex<span class="roman">, not in source tree</span></code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Installing">Installing</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-png-library"><code>png <span class="roman">library</span></code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#png-library"><code>png</code> library</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-poppler"><code>poppler</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Configure-options-for-system-poppler">Configure options for system <code>poppler</code></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-PostScript-files_002c-size-of">PostScript files, size of</a>:</td><td>&nbsp;</td><td valign="top"><a href="#g_t_002d_002ddisable_002dlargefile"><code>--disable-largefile</code></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-Preining_002c-Norbert">Preining, Norbert</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Distro-builds">Distro builds</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-preloaded-binaries">preloaded binaries</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Configure-options-for-texk_002fweb2c">Configure options for <samp>texk/web2c</samp></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-prerequisites-for-building">prerequisites for building</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Prerequisites">Prerequisites</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-problems-with-build">problems with build</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Build-problems">Build problems</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-program-module_002c-adding">program module, adding</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Adding-a-new-program-module">Adding a new program module</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-program-modules">program modules</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Program-modules">Program modules</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-program_002dspecific-configure-options">program-specific <code>configure</code> options</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Program_002dspecific-configure-options">Program-specific configure options</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-proxy-build-system">proxy build system</a>:</td><td>&nbsp;</td><td valign="top"><a href="#png-library"><code>png</code> library</a></td></tr>
<tr><td colspan="4"> <hr></td></tr>
<tr><th id="Index_cp_letter-R">R</th><td></td><td></td></tr>
<tr><td></td><td valign="top"><a href="#index-reautoconf"><code>reautoconf</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Build-system-tools">Build system tools</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-requirements-for-building">requirements for building</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Prerequisites">Prerequisites</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-runscript_002eexe"><code>runscript.exe</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Macros-for-Windows">Macros for Windows</a></td></tr>
<tr><td colspan="4"> <hr></td></tr>
<tr><th id="Index_cp_letter-S">S</th><td></td><td></td></tr>
<tr><td></td><td valign="top"><a href="#index-scripts_002c-linked-and-not-maintained">scripts, linked and not maintained</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Linked-scripts">Linked scripts</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-scrolling_002c-smooth"><code>scrolling, smooth</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Configure-options-for-texk_002fxdvik">Configure options for <samp>texk/xdvik</samp></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-SED"><code>SED</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Variables-for-configure">Variables for configure</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-setup-macros_002c-general">setup macros, general</a>:</td><td>&nbsp;</td><td valign="top"><a href="#General-setup-macros">General setup macros</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-shared-libraries_002c-using-vs_002e-avoiding">shared libraries, using vs. avoiding</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Distro-builds">Distro builds</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-size-of-PDF-and-PS-files">size of PDF and PS files</a>:</td><td>&nbsp;</td><td valign="top"><a href="#g_t_002d_002ddisable_002dlargefile"><code>--disable-largefile</code></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-size-of-source-tree">size of source tree</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Build-one-package">Build one package</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-source-code-declarations">source code declarations</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Declarations-and-definitions">Declarations and definitions</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-source-directory-building_002c-not-supported">source directory building, not supported</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Building">Building</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-source-tree">source tree</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Layout-and-infrastructure">Layout and infrastructure</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-squeeze"><code>squeeze</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Cross-problems">Cross problems</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-squeeze_002fconfigure_002eac"><code>squeeze/configure.ac</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#xdvik-package"><code>xdvik</code> package</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-static-functions"><code>static</code> functions</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Declarations-and-definitions">Declarations and definitions</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-static-linking-for-C_002b_002b">static linking for C++</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Macros-for-compilers">Macros for compilers</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-stpcpy"><code>stpcpy</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Declarations-and-definitions">Declarations and definitions</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-Subversion-repository">Subversion repository</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Build-system-tools">Build system tools</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-support-files_002c-separate-from-build">support files, separate from build</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Installing">Installing</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-symlinks_002c-used-for-scripts">symlinks, used for scripts</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Linked-scripts">Linked scripts</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-synctex">synctex</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Configure-options-for-texk_002fweb2c">Configure options for <samp>texk/web2c</samp></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-synctex-1">synctex</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Configure-options-for-texk_002fweb2c">Configure options for <samp>texk/web2c</samp></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-system-distribution_002c-building-for">system distribution, building for</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Distro-builds">Distro builds</a></td></tr>
<tr><td colspan="4"> <hr></td></tr>
<tr><th id="Index_cp_letter-T">T</th><td></td><td></td></tr>
<tr><td></td><td valign="top"><a href="#index-t1utils-package"><code>t1utils <span class="roman">package</span></code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#t1utils-package"><code>t1utils</code> package</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-tangle"><code>tangle</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Cross-problems">Cross problems</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-tests_002c-running">tests, running</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Overview-of-build-system">Overview of build system</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-TeX_002dspecific-library-module_002c-adding">TeX-specific library module, adding</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Adding-a-new-TeX_002dspecific-library-module">Adding a new TeX-specific library module</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-texlive_002etlpdb_002c-TeX-Live-database"><code>texlive.tlpdb<span class="roman">, TeX&nbsp;Live database</span></code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Installing">Installing</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-tie"><code>tie</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Cross-problems">Cross problems</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-timestamps_002c-in-repository">timestamps, in repository</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Build-system-tools">Build system tools</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-tools_002c-for-building">tools, for building</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Build-system-tools">Build system tools</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-top_002dlevel-directories">top-level directories</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Top_002dlevel-directories">Top-level directories</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-touching-files-to-avoid-rerunning">touching files to avoid rerunning</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Build-system-tools">Build system tools</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-Travis_002dCI">Travis-CI</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Continuous-integration">Continuous integration</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-travis_002eyml"><code>travis.yml</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#CI-testing-on-Travis_002dCI">CI testing on Travis-CI</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-type-cast-from-const_002c-avoiding">type cast from const, avoiding</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Const">Const</a></td></tr>
<tr><td colspan="4"> <hr></td></tr>
<tr><th id="Index_cp_letter-U">U</th><td></td><td></td></tr>
<tr><td></td><td valign="top"><a href="#index-use_002dcommit_002dtimes_002c-Subversion"><code>use-commit-times<span class="roman">, Subversion</span></code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Build-system-tools">Build system tools</a></td></tr>
<tr><td colspan="4"> <hr></td></tr>
<tr><th id="Index_cp_letter-V">V</th><td></td><td></td></tr>
<tr><td></td><td valign="top"><a href="#index-variable-declarations_002c-in-source-code">variable declarations, in source code</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Declarations-and-definitions">Declarations and definitions</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-variables-for-configure">variables for <code>configure</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Variables-for-configure">Variables for configure</a></td></tr>
<tr><td colspan="4"> <hr></td></tr>
<tr><th id="Index_cp_letter-W">W</th><td></td><td></td></tr>
<tr><td></td><td valign="top"><a href="#index-warning_002c-discards-qualifiers">warning, discards qualifiers</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Const">Const</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-WARNING_005fC_005bXX_005dFLAGS"><code>WARNING_C[XX]FLAGS</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Macros-for-compilers">Macros for compilers</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-web2c-program"><code>web2c <span class="roman">program</span></code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Cross-problems">Cross problems</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-web2c_002eac"><code>web2c.ac</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Configure-options-for-texk_002fweb2c">Configure options for <samp>texk/web2c</samp></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-wget"><code>wget</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Linked-scripts">Linked scripts</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-WIN32_002c-Automake-conditional"><code>WIN32<span class="roman">, Automake conditional</span></code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Macros-for-Windows">Macros for Windows</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-WIN32_005fWRAP_002c-Automake-conditional"><code>WIN32_WRAP<span class="roman">, Automake conditional</span></code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Macros-for-Windows">Macros for Windows</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-Windows_002c-invoking-scripts-on">Windows, invoking scripts on</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Linked-scripts">Linked scripts</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-Windows_002c-macros-for">Windows, macros for</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Macros-for-Windows">Macros for Windows</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-withenable_002eac_002c-for-new-modules"><code>withenable.ac<span class="roman">, for new modules</span></code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Adding-a-new-program-module">Adding a new program module</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-Work_002f-top_002dlevel-directory"><samp>Work/</samp> top-level directory</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Top_002dlevel-directories">Top-level directories</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-wrapper-binary-for-scripts-on-Windows">wrapper binary for scripts on Windows</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Linked-scripts">Linked scripts</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-wrapper-build-system">wrapper build system</a>:</td><td>&nbsp;</td><td valign="top"><a href="#freetype-library"><code>freetype</code> library</a></td></tr>
<tr><td colspan="4"> <hr></td></tr>
<tr><th id="Index_cp_letter-X">X</th><td></td><td></td></tr>
<tr><td></td><td valign="top"><a href="#index-X-toolkit">X toolkit</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Configure-options-for-texk_002fweb2c">Configure options for <samp>texk/web2c</samp></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-X11-development_002c-required-by-X-clients">X11 development, required by X clients</a>:</td><td>&nbsp;</td><td valign="top"><a href="#Prerequisites">Prerequisites</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-X11-headers_002c-and-const">X11 headers, and <code>const</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Const">Const</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-xasy"><code>xasy</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#asymptote"><code>asymptote</code></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-xaw"><code>xaw</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Configure-options-for-texk_002fxdvik">Configure options for <samp>texk/xdvik</samp></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-xdvik"><code>xdvik</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#xdvik-package"><code>xdvik</code> package</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-xdvik-1"><code>xdvik</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Configure-options-for-texk_002fxdvik">Configure options for <samp>texk/xdvik</samp></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-xdvipdfmx"><code>xdvipdfmx</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Configure-options-for-texk_002fdvipdfm_002dx">Configure options for <samp>texk/dvipdfm-x</samp></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-xindy"><code>xindy</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Linked-scripts">Linked scripts</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-xindy-1"><code>xindy</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#xindy-package"><code>xindy</code> package</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-xindy-2"><code>xindy</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Configure-options-for-utils_002fxindy">Configure options for <samp>utils/xindy</samp></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-xindy-cross-compiling-requires-clisp"><code>xindy</code> cross compiling requires <code>clisp</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Cross-problems">Cross problems</a></td></tr>
<tr><td></td><td valign="top"><a href="#index-XInput"><code>XInput</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Configure-options-for-texk_002fxdvik">Configure options for <samp>texk/xdvik</samp></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-Xlib"><code>Xlib</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Configure-options-for-texk_002fweb2c">Configure options for <samp>texk/web2c</samp></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-xpdf-as-library"><code>xpdf <span class="roman">as library</span></code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Configure-options-for-system-poppler">Configure options for system <code>poppler</code></a></td></tr>
<tr><td></td><td valign="top"><a href="#index-xz"><code>xz</code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#Linked-scripts">Linked scripts</a></td></tr>
<tr><td colspan="4"> <hr></td></tr>
<tr><th id="Index_cp_letter-Z">Z</th><td></td><td></td></tr>
<tr><td></td><td valign="top"><a href="#index-zlib-library"><code>zlib <span class="roman">library</span></code></a>:</td><td>&nbsp;</td><td valign="top"><a href="#zlib-library"><code>zlib</code> library</a></td></tr>
<tr><td colspan="4"> <hr></td></tr>
</table>
<table><tr><th valign="top">Jump to: &nbsp; </th><td><a class="summary-letter" href="#Index_cp_symbol-1"><b>-</b></a>
 &nbsp; 
<br>
<a class="summary-letter" href="#Index_cp_letter-A"><b>A</b></a>
 &nbsp; 
<a class="summary-letter" href="#Index_cp_letter-B"><b>B</b></a>
 &nbsp; 
<a class="summary-letter" href="#Index_cp_letter-C"><b>C</b></a>
 &nbsp; 
<a class="summary-letter" href="#Index_cp_letter-D"><b>D</b></a>
 &nbsp; 
<a class="summary-letter" href="#Index_cp_letter-E"><b>E</b></a>
 &nbsp; 
<a class="summary-letter" href="#Index_cp_letter-F"><b>F</b></a>
 &nbsp; 
<a class="summary-letter" href="#Index_cp_letter-G"><b>G</b></a>
 &nbsp; 
<a class="summary-letter" href="#Index_cp_letter-I"><b>I</b></a>
 &nbsp; 
<a class="summary-letter" href="#Index_cp_letter-K"><b>K</b></a>
 &nbsp; 
<a class="summary-letter" href="#Index_cp_letter-L"><b>L</b></a>
 &nbsp; 
<a class="summary-letter" href="#Index_cp_letter-M"><b>M</b></a>
 &nbsp; 
<a class="summary-letter" href="#Index_cp_letter-N"><b>N</b></a>
 &nbsp; 
<a class="summary-letter" href="#Index_cp_letter-O"><b>O</b></a>
 &nbsp; 
<a class="summary-letter" href="#Index_cp_letter-P"><b>P</b></a>
 &nbsp; 
<a class="summary-letter" href="#Index_cp_letter-R"><b>R</b></a>
 &nbsp; 
<a class="summary-letter" href="#Index_cp_letter-S"><b>S</b></a>
 &nbsp; 
<a class="summary-letter" href="#Index_cp_letter-T"><b>T</b></a>
 &nbsp; 
<a class="summary-letter" href="#Index_cp_letter-U"><b>U</b></a>
 &nbsp; 
<a class="summary-letter" href="#Index_cp_letter-V"><b>V</b></a>
 &nbsp; 
<a class="summary-letter" href="#Index_cp_letter-W"><b>W</b></a>
 &nbsp; 
<a class="summary-letter" href="#Index_cp_letter-X"><b>X</b></a>
 &nbsp; 
<a class="summary-letter" href="#Index_cp_letter-Z"><b>Z</b></a>
 &nbsp; 
</td></tr></table>

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