mirror of
https://github.com/Zeckmathederg/glfs.git
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6732c09460
git-svn-id: svn://svn.linuxfromscratch.org/BLFS/trunk/BOOK@6716 af4574ff-66df-0310-9fd7-8a98e5e911e0
220 lines
8.7 KiB
XML
220 lines
8.7 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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<!ENTITY gcc3-download-http "http://ftp.gnu.org/gnu/gcc/gcc-&gcc3-version;/gcc-&gcc3-version;.tar.bz2">
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<!ENTITY gcc3-download-ftp "ftp://ftp.gnu.org/gnu/gcc/gcc-&gcc3-version;/gcc-&gcc3-version;.tar.bz2">
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<!ENTITY gcc3-md5sum "6936616a967da5a0b46f1e7424a06414">
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<!ENTITY gcc3-size "24 MB">
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<!ENTITY gcc3-buildsize "433 MB (includes running the test suite)">
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<!ENTITY gcc3-time "5.2 SBU (additional 11.2 SBU to run the test suite)">
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]>
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<sect1 id="gcc3" xreflabel="GCC-&gcc3-version;">
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<?dbhtml filename="gcc3.html" ?>
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<sect1info>
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<othername>$LastChangedBy$</othername>
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<date>$Date$</date>
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</sect1info>
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<title>GCC-&gcc3-version;</title>
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<indexterm zone="gcc3">
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<primary sortas="a-GCC-3-3">GCC-&gcc3-version;</primary>
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</indexterm>
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<sect2 role="package">
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<title>Introduction to GCC-&gcc3-version;</title>
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<para>There are several reasons why you may wish to install
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<application>GCC</application>-&gcc3-version;. Some packages have not been
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updated so they can be successfully compiled by
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<application>GCC</application>-&gcc-version; as
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version 4.x.x of <application>GCC</application> is much stricter in
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enforcing coding standards. Additionally, some pre-compiled packages may
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require the <application>GCC</application>-&gcc3-version; libraries at
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run-time. Another reason you may need to install
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<application>GCC</application>-&gcc3-version; is to use the
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<command>g77</command> Fortran 77 compiler provided by pre-4.x.x versions
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of <application>GCC</application>. <application>GCC</application>-4.x.x
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only includes <command>gfortran</command>, a Fortran 95 compatible compiler
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that is not yet ready to be used in a production environment.</para>
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<para>If all you need is a working <command>{f,g}77</command> Fortran 77
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compiler, you may wish to use the one provided by
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<application>GCC</application>-3.4.x. This is what the
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<application>GCC</application> developers recommend. Instructions for
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building the <application>GCC</application>-3.4.x Fortran compiler can be
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found on the
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<ulink url="&blfs-wiki;/gcc3">BLFS
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Wiki</ulink>.</para>
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<bridgehead renderas="sect3">Package Information</bridgehead>
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<itemizedlist spacing="compact">
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<listitem>
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<para>Download (HTTP): <ulink url="&gcc3-download-http;"/></para>
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</listitem>
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<listitem>
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<para>Download (FTP): <ulink url="&gcc3-download-ftp;"/></para>
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</listitem>
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<listitem>
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<para>Download MD5 sum: &gcc3-md5sum;</para>
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</listitem>
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<listitem>
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<para>Download size: &gcc3-size;</para>
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</listitem>
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<listitem>
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<para>Estimated disk space required: &gcc3-buildsize;</para>
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</listitem>
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<listitem>
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<para>Estimated build time: &gcc3-time;</para>
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</listitem>
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</itemizedlist>
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<bridgehead renderas="sect3">Additional Downloads</bridgehead>
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<itemizedlist spacing='compact'>
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<listitem>
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<para>Required patch: <ulink
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url="&patch-root;/gcc-&gcc3-version;-no_fixincludes-1.patch"/></para>
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</listitem>
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<listitem>
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<para>Required patch: <ulink
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url="&patch-root;/gcc-&gcc3-version;-linkonce-1.patch"/></para>
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</listitem>
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</itemizedlist>
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<bridgehead renderas="sect3">GCC-&gcc3-version; Dependencies</bridgehead>
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<bridgehead renderas="sect4">Optional</bridgehead>
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<para role="optional"><xref linkend="dejagnu"/> (required to run the full test suite)</para>
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<para condition="html" role="usernotes">User Notes:
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<ulink url="&blfs-wiki;/gcc3"/></para>
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</sect2>
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<sect2 role="installation">
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<title>Installation of GCC-&gcc3-version;</title>
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<para>Install <application>GCC</application>-&gcc3-version; by running
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the following commands:</para>
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<screen><userinput>patch -Np1 -i ../gcc-&gcc3-version;-no_fixincludes-1.patch &&
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patch -Np1 -i ../gcc-&gcc3-version;-linkonce-1.patch &&
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mkdir ../gcc-build &&
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cd ../gcc-build &&
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../gcc-&gcc3-version;/configure --prefix=/opt/gcc-&gcc3-version; \
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--enable-shared --enable-languages=c,c++ --enable-threads=posix &&
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make bootstrap</userinput></screen>
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<para>If desired, run the test suite using the following commands. The
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<command>test_summary</command> commands create log files which can be
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compared to known good results located at <ulink
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url="&files-anduin;/gcc336_test.txt"/>.</para>
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<screen><userinput>make -k check &&
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../gcc-&gcc3-version;/contrib/test_summary >test_summary.log 2>&1 &&
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../gcc-&gcc3-version;/contrib/test_summary | \
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grep -A7 Summ >test_summary_short.log 2>&1</userinput></screen>
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<para>Now, as the <systemitem class="username">root</systemitem> user:</para>
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<screen role="root"><userinput>make install &&
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mv -v /opt/gcc-&gcc3-version;/lib/libstdc++.so.5* /usr/lib &&
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ln -v -sf /usr/lib/libstdc++.so.5.0.7 /opt/gcc-&gcc3-version;/lib &&
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ln -v -sf libstdc++.so.5.0.7 /opt/gcc-&gcc3-version;/lib/libstdc++.so.5 &&
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chown -v -R root:root \
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/opt/gcc-&gcc3-version;/lib/gcc-lib/i686-pc-linux-gnu/&gcc3-version;/include</userinput></screen>
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</sect2>
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<sect2 role="commands">
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<title>Command Explanations</title>
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<para><command>mkdir ../gcc-build; cd ../gcc-build</command>: The
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<application>GCC</application> development team recommends
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building in a separate directory.</para>
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<para id='gcc3-lang'><parameter>--enable-shared --enable-languages=c,c++
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--enable-threads=posix</parameter>: Configures
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<application>GCC</application> to build the <application>C</application>
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and <application>C++</application> compilers and enable the related
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<application>C++</application> options. In addition to c and c++, you can
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add f77 for FORTRAN (called <application>g77</application>). Note that
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<application>GCC-4</application> no longer provides a FORTRAN 77
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compiler.</para>
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<indexterm zone="gcc3 gcc3-lang">
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<primary sortas="b-g77">g77</primary>
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</indexterm>
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<indexterm zone="gcc3 gcc3-lang">
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<primary sortas="b-FORTRAN">FORTRAN</primary>
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</indexterm>
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<para><command>mv -v /opt/gcc-&gcc3-version;/lib/libstdc++.so.5*
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/usr/lib</command>: Moves the <application>C++</application> library to the
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standard lib directory to avoid having to add
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<userinput>/opt/gcc-&gcc3-version;/lib</userinput> to
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<filename>/etc/ld.so.conf</filename>.</para>
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</sect2>
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<sect2 role="configuration">
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<title>Configuring GCC-&gcc3-version;</title>
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<sect3>
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<title>Configuration information</title>
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<para>If you only need the GCC-&gcc3-version; C++ library, you may delete
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<filename>/opt/gcc-&gcc3-version;</filename>.</para>
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<para>Whenever you need to use GCC-&gcc3-version; instead of your system
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installed compiler, add
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<filename class="directory">/opt/gcc-&gcc3-version;/bin</filename> to the
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front of your <envar>PATH</envar> or (preferably) set the <envar>CC</envar>
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environment variable before compiling the concerned package.</para>
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<para>If you use <application>g77</application> programs, you also
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should move the libg2c.* libraries and symbolic links to <filename
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class='directory'>/usr/lib</filename>. Using export
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LD_LIBRARY_PATH=/opt/gcc-&gcc3-version;/lib or updating
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<filename>/etc/ld.so.conf</filename> to point to <filename
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class='directory'>/opt/gcc-&gcc3-version;/lib</filename> is not
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recommended as it may conflict with your normal libraries.</para>
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</sect3>
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</sect2>
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<sect2 role="content">
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<title>Contents</title>
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<segmentedlist>
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<segtitle>Installed Programs</segtitle>
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<segtitle>Installed Libraries</segtitle>
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<segtitle>Installed Directory</segtitle>
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<seglistitem>
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<seg>c++, cpp, g++, gcc, gccbug, gcov, and architecture specific
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names of these programs.</seg>
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<seg>libgcc_s.so, libiberty.a, libstdc++.{a,so}, libsupc++.a, and other
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support libraries and files.</seg>
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<seg>/opt/gcc-&gcc3-version;</seg>
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</seglistitem>
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</segmentedlist>
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<bridgehead renderas="sect3">Short Descriptions</bridgehead>
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<para>The GCC-&gcc3-version; package contains the
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<command>gcc</command>-&gcc3-version; <application>C</application> and
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<application>C++</application> compilers and the GCC-&gcc3-version;
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<filename>libstdc++.so</filename> library that is required by some
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commercial and pre-compiled packages.</para>
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</sect2>
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</sect1>
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