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62909d965a
git-svn-id: http://svn.linuxfromscratch.org/LFS/trunk/BOOK@2156 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689
30 lines
1.2 KiB
XML
30 lines
1.2 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:</para>
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<para><screen><userinput>patch -Np1 -i ../gcc-&gcc-patch-version;.patch &&
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patch -Np1 -i ../gcc-3.2-nofixincludes-2.patch &&
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mkdir ../gcc-build &&
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cd ../gcc-build &&
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../gcc-&gcc-version;/configure --prefix=/static --enable-languages=c \
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--disable-nls --disable-shared &&
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echo "#define HAVE_GAS_HIDDEN 1" >> gcc/auto-host.h &&
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make BOOT_LDFLAGS=-static bootstrap &&
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make prefix=$LFS/static install &&
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ln -s gcc $LFS/static/bin/cc</userinput></screen></para>
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</sect2>
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