mirror of https://github.com/tLDP/LDP
40 lines
1.6 KiB
XML
40 lines
1.6 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 build
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the C and C++ compiler. Other compilers are available within the gcc
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package. If you want to build all the other available compilers too,
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leave out the --enable-languages=c,c++ option in the configure command.
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See the GCC documentation for more details on which additional compilers
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are available.</para>
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<para>Note: the build of other compilers is not tested by the people
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who actively work on LFS.</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-languages=c,c++ --enable-threads=posix \
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--with-slibdir=/lib --enable-__cxa_atexit \
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--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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