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<sect2>
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<title>Installation of <application><acronym>GCC</acronym></application></title>
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<para>Apply the patches:</para>
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<screen><userinput><command>patch -Np1 -i ../gcc-&gcc2-version;-2.patch &&
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patch -Np1 -i ../gcc-&gcc2-version;-no-fixinc.patch &&
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patch -Np1 -i ../gcc-&gcc2-version;-returntype-fix.patch</command></userinput></screen>
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<para>The <acronym>GCC</acronym> development team recommends building in a
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separate directory.</para>
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<screen><userinput><command>mkdir ../gcc-build &&
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cd ../gcc-build</command></userinput></screen>
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<para>Configure <acronym>GCC</acronym> to build the
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<application>C</application> and <application>C++</application> compilers and
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enable the related <application>C++</application> options.</para>
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<screen><userinput><command>../gcc-&gcc2-version;/configure \
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--prefix=/opt/gcc-&gcc2-version; \
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--enable-shared --enable-languages=c,c++ \
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--enable-threads=posix</command></userinput></screen>
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<para>Compile and install <acronym>GCC</acronym>:</para>
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<screen><userinput><command>make bootstrap &&
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make install</command></userinput></screen>
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<para>Make note of the library that is installed.</para>
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<screen><userinput><command>L=`find /opt/gcc-&gcc2-version;/lib -name "*libstdc++*.so" -type f` &&
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IL=`basename $L`</command></userinput></screen>
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<para>Move the <application>C++</application> libraries to the standard lib
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directory to avoid having to add <userinput>/opt/gcc-&gcc2-version;/lib
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</userinput> to <filename>/etc/ld.so.conf</filename>.</para>
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<screen><userinput><command>for i in /opt/gcc-&gcc2-version;/lib/*.so*; do mv -f $i /usr/lib;
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ln -sf /usr/lib/`basename $i` /opt/gcc-&gcc2-version;/lib; done</command></userinput></screen>
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<para>Create symlinks required by commercial and precompiled packages.</para>
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<screen><userinput><command>ln -sf $IL /usr/lib/libstdc++-libc6.1-1.so.2 &&
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ln -sf $IL /usr/lib/libstdc++-libc6.2-2.so.3 &&
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ln -sf $IL /usr/lib/libstdc++-libc6.3-2.so.3</command></userinput></screen>
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</sect2>
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