mirror of https://github.com/tLDP/LDP
126 lines
3.8 KiB
XML
126 lines
3.8 KiB
XML
<?xml version="1.0" encoding="ISO-8859-1"?>
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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="ch-tools-libstdcpp" role="wrap">
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<?dbhtml filename="gcc-libstdc++.html"?>
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<sect1info condition="script">
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<productname>libstdc++</productname>
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<productnumber>&gcc-version;</productnumber>
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<address>&gcc-url;</address>
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</sect1info>
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<title>Libstdc++-&gcc-version;</title>
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<indexterm zone="ch-tools-libstdcpp">
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<primary sortas="a-GCC">GCC</primary>
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<secondary>tools, libstdc++</secondary>
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</indexterm>
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<sect2 role="package">
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<title/>
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<para>Libstdc++ is the standard C++ library. It is needed for the correct
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operation of the g++ compiler.</para>
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<segmentedlist>
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<segtitle>&buildtime;</segtitle>
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<segtitle>&diskspace;</segtitle>
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<seglistitem>
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<seg>&libstdcpp-ch5-sbu;</seg>
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<seg>&libstdcpp-ch5-du;</seg>
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</seglistitem>
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</segmentedlist>
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</sect2>
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<sect2 role="installation">
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<title>Installation of Target Libstdc++</title>
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<note>
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<para><application>Libstdc++</application> is part of the GCC sources.
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You should first unpack the GCC tarball and change to the
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<filename>gcc-&gcc-version;</filename> directory.</para>
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</note>
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<para>Create a directory for Libstdc++ and enter it:</para>
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<screen><userinput remap="pre">mkdir -v ../gcc-build
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cd ../gcc-build</userinput></screen>
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<para>Prepare Libstdc++ for compilation:</para>
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<screen><userinput remap="configure">../gcc-&gcc-version;/libstdc++-v3/configure \
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--host=$LFS_TGT \
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--prefix=/tools \
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--disable-multilib \
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--disable-nls \
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--disable-libstdcxx-threads \
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--disable-libstdcxx-pch \
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--with-gxx-include-dir=/tools/$LFS_TGT/include/c++/&gcc-version;</userinput></screen>
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<variablelist>
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<title>The meaning of the configure options:</title>
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<varlistentry>
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<term><parameter>--host=...</parameter></term>
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<listitem>
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<para>Indicates to use the cross compiler we have just built
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instead of the one in <filename>/usr/bin</filename>.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><parameter>--disable-libstdcxx-threads</parameter></term>
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<listitem>
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<para>Since we have not yet built the C threads library, the C++
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one cannot be built either.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><parameter>--disable-libstdcxx-pch</parameter></term>
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<listitem>
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<para>This switch prevents the installation of precompiled
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include files, which are not needed at this stage.</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><parameter>--with-gxx-include-dir=/tools/$LFS_TGT/include/c++/&gcc-version;</parameter></term>
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<listitem>
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<para>This is the location where the standard include files are
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searched by the C++ compiler. In a normal build, this information
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is automatically passed to the Libstdc++ <command>configure</command>
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options from the top level directory. In our case, this information
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must be explicitly given.</para>
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</listitem>
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</varlistentry>
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</variablelist>
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<para>Compile libstdc++ by running:</para>
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<screen><userinput remap="make">make</userinput></screen>
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<para>Install the library:</para>
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<screen><userinput remap="install">make install</userinput></screen>
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</sect2>
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<sect2 role="content">
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<title/>
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<para>Details on this package are located in
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<xref linkend="contents-gcc" role="."/></para>
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</sect2>
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</sect1>
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