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git-svn-id: http://svn.linuxfromscratch.org/LFS/trunk/BOOK@2168 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689
34 lines
1.4 KiB
XML
34 lines
1.4 KiB
XML
<sect2>
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<title>Installation of GCC</title>
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<para>This package requires its patch to be applied before you can
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install it. Make sure it's unpacked before running the installation
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commands.</para>
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<para>This package is known to behave badly when you have changed its
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default optimization flags (including the -march and -mcpu options). GCC is
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best left alone. Therefore, if you have defined any environment variables
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that override default optimizations, such as CFLAGS and CXXFLAGS, we
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recommend unsetting or modifying them when building GCC. You have
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been warned.</para>
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<para>Install GCC by running the following commands. These commands will
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build the C and C++ compilers, so you'll need to unpack both the gcc-core
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and gcc-g++ tarballs. Other compilers are available in the full gcc package;
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instructions for building them may be found at
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<ulink url="&blfs-root;view/cvs/general/gcc.html"/>.</para>
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<para><screen><userinput>patch -Np1 -i ../gcc-&gcc-patch-version;.patch &&
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mkdir ../gcc-build &&
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cd ../gcc-build &&
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../gcc-&gcc-version;/configure --prefix=/usr --enable-shared \
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--enable-threads=posix --with-slibdir=/lib \
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--enable-__cxa_atexit --enable-clocale=gnu &&
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make bootstrap &&
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make install &&
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ln -s ../usr/bin/cpp /lib &&
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ln -s ../bin/cpp /usr/lib &&
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ln -s gcc /usr/bin/cc</userinput></screen></para>
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</sect2>
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