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git-svn-id: http://svn.linuxfromscratch.org/LFS/trunk/BOOK@980 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689
29 lines
1.1 KiB
XML
29 lines
1.1 KiB
XML
<sect2>
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<title>Command explanations</title>
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<para><userinput>patch -Np1 -i ../gcc-&gcc-version;.patch:</userinput>
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This patch fixes a bug in gcc's linker concerning non-exported (weak)
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symbols, which was brought to the surface by the new glibc and also one
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or two other problems which can arise.</para>
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<para><userinput>--prefix=/usr:</userinput> This is NOT a typo. GCC hard
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codes some paths while compiling and so we need to pass /usr as the
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prefix during ./configure. We pass the real install prefix during the
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make install command later.</para>
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<para><userinput>--enable-languages=c,c++:</userinput> This only builds the C
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and C++ compilers and not the other available compilers as they are, on
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the average, not often used. If those other compilers are needed,
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the --enable-languages parameter can be omitted.</para>
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<para><userinput>ln -s ../usr/bin/cpp:</userinput> This
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creates the $LFS/lib/cpp symlink. Some packages explicitly try to find
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cpp in /lib.</para>
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<para><userinput>ln -s ../bin/cpp:</userinput> This
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creates the $LFS/usr/lib/cpp symlink as there are packages that expect
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cpp to be in /usr/lib.</para>
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</sect2>
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