mirror of
https://github.com/Zeckmathederg/glfs.git
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83 lines
2.6 KiB
XML
83 lines
2.6 KiB
XML
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<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
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"http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
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<!ENTITY % general-entities SYSTEM "../general.ent">
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%general-entities;
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]>
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<sect1 id="mesoncross" xreflabel="Meson Cross Toolchain File">
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<?dbhtml filename="mesoncross.html"?>
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<title>Meson Cross Toolchain File</title>
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<para>
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Most applications that rely on the <application>Meson</application>
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build system have decent support for cross compilation, ie. compiling
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32-bit binaries on a 64-bit system. It can be as easy as setting the
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<envar>CC</envar>, <envar>CXX</envar>, and <envar>PKG_CONFIG_PATH
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</envar> variables before using the <userinput>meson setup ..
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</userinput> command to compile 32-bit binaries on a 64-bit system.
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However, some projects are more complicated for many different
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reasons, leading to the necessity of a <application>Meson
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</application> cross toolchain file. It specifies the compilers,
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options that should be invoked, the <application>pkg-conf</application>
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binary (or rather symlink that uses a certain personality file) to use,
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<command>llvm-config</command> to use, etc. This isn't required for
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<xref linkend="steam"/> unless you want to install Mesa's NVK driver,
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which isn't in the book at the moment. It is needed for Gstreamer which
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is a recommended dependency of <xref linkend="wine"/>.
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</para>
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<para>
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The instructions below will show how to create and use the file if
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necessary.
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</para>
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<sect2 role="installation">
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<title>Creating the Cross Toolchain File</title>
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<para>
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Create the following toolchain file by running the following
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commands as the <systemitem class="username">root</systemitem>
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user:
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</para>
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<screen role="root"><userinput>mkdir -v /usr/share/meson/cross
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cat > /usr/share/meson/cross/lib32 << "EOF"
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<literal>[binaries]
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c = ['gcc', '-m32']
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cpp = ['g++', '-m32']
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rust = ['rustc', '--target', 'i686-unknown-linux-gnu']
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pkg-config = 'i686-pc-linux-gnu-pkg-config'
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cups-config = 'cups-config'
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llvm-config = 'llvm-config32'
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strip = 'strip'
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[built-in options]
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libdir = 'lib32'
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[host_machine]
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system = 'linux'
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subsystem = 'linux'
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kernel = 'linux'
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cpu_family = 'x86'
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cpu = 'i686'
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endian = 'little'</literal>
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EOF</userinput></screen>
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</sect2>
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<sect2>
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<title>How to Use the File</title>
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<para>
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Instead of setting environment variables before invoking
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<userinput>meson setup ..</userinput>, you can simply do:
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</para>
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<screen><userinput>meson setup .. --cross-file lib32 <other-options></userinput></screen>
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</sect2>
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</sect1>
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