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git-svn-id: http://svn.linuxfromscratch.org/LFS/trunk/BOOK@2235 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689
34 lines
1.6 KiB
XML
34 lines
1.6 KiB
XML
<sect2>
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<title>Command explanations</title>
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<para><userinput>patch -Np1 -i ../gcc-3.2-nofixincludes-2.patch:</userinput>
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This prevents the fixincludes script from running. This is needed because
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under normal circumstances the GCC installation will run the fixincludes
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scripts which scans your system for header files that need to be fixed. Say
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it finds Glibc header files. It will fix them and will end up in
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$LFS/static/lib/gcc-lib/i686-pc-linux-gnu/3.2. Later on in chapter 6 you
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will install Glibc which will install header files in /usr/include. Next
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you will install other programs which will use Glibc headers. GCC will look
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in /static/lib/gcc-lib before looking in /usr/include, whichhas the result
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of Glibc header files from your host distribution being found and used which
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are probably incompatible with the Glibc version actually in use on the LFS
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system.</para>
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<para><userinput>--prefix=/static:</userinput> This is NOT a typo. GCC hard
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codes some paths while compiling and so we need to pass /static 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>echo "#define HAVE_GAS_HIDDEN 1":</userinput>
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This defines the .hidden assembler directive so that we don't build
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a faulty Glibc later on.</para>
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<para><userinput>make BOOT_LDFLAGS=-static:</userinput>
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This is the equivalent to make LDFLAGS=-static as we use with other
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packages to compile them statically.</para>
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<para><userinput>ln -s gcc $LFS/static/bin/cc:</userinput> This
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creates the $LFS/static/bin/gcc symlink, which some packages need.</para>
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</sect2>
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