mirror of
https://git.linuxfromscratch.org/lfs.git
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b43aab1573
thus should be left alone. git-svn-id: http://svn.linuxfromscratch.org/LFS/trunk/BOOK@1172 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689
30 lines
1.3 KiB
XML
30 lines
1.3 KiB
XML
<sect2>
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<title>Installation of GCC</title>
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<para>This package is known to behave badly when you have changed it's default
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optimization flags (including the -march and -mcpu options). GCC is best
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left alone, so we recommend you unsetting CFLAGS, CXXFLAGS and other
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such variables/settings that would change the default optimization that
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it comes with.</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 availble 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 &&</userinput>
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<userinput>mkdir ../gcc-build &&</userinput>
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<userinput>cd ../gcc-build &&</userinput>
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<userinput>../gcc-&gcc-version;/configure --prefix=/usr --enable-shared \</userinput>
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<userinput> --enable-languages=c,c++ --enable-threads &&</userinput>
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<userinput>make bootstrap &&</userinput>
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<userinput>make install</userinput></screen></para>
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</sect2>
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