source: chapter05/gcc-exp.xml@ f36a666

10.0 10.0-rc1 10.1 10.1-rc1 11.0 11.0-rc1 11.0-rc2 11.0-rc3 11.1 11.1-rc1 11.2 11.2-rc1 11.3 11.3-rc1 12.0 12.0-rc1 12.1 12.1-rc1 6.0 6.1 6.1.1 6.3 6.4 6.5 6.6 6.7 6.8 7.0 7.1 7.2 7.3 7.4 7.5 7.5-systemd 7.6 7.6-systemd 7.7 7.7-systemd 7.8 7.8-systemd 7.9 7.9-systemd 8.0 8.1 8.2 8.3 8.4 9.0 9.1 arm bdubbs/gcc13 ml-11.0 multilib renodr/libudev-from-systemd s6-init trunk v3_0 v3_1 v3_2 v3_3 v4_0 v4_1 v5_0 v5_1 v5_1_1 xry111/arm64 xry111/arm64-12.0 xry111/clfs-ng xry111/lfs-next xry111/loongarch xry111/loongarch-12.0 xry111/loongarch-12.1 xry111/mips64el xry111/pip3 xry111/rust-wip-20221008 xry111/update-glibc
Last change on this file since f36a666 was f36a666, checked in by Mark Hymers <markh@…>, 23 years ago

--prefix=/usr explained

git-svn-id: http://svn.linuxfromscratch.org/LFS/trunk/BOOK@969 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689

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1<sect2>
2<title>Command explanations</title>
3
4<para><userinput>patch -Np1 -i ../gcc-&gcc-version;.patch:</userinput>
5This patch fixes a bug in gcc's linker concerning non-exported (weak)
6symbols, which was brought to the surface by the new glibc.</para>
7
8<para><userinput>--prefix=usr:</userinput> This is NOT a typo. GCC hard
9codes some paths while compiling and so we need to pass /usr as the
10prefix during ./configure. We pass the real install prefix during the
11make install command later.</para>
12
13<para><userinput>--enable-languages=c,c++:</userinput> This only builds the C
14and C++ compilers and not the other available compilers as they are, on
15the average, not often used. If those other compilers are needed,
16the --enable-languages parameter can be omitted.</para>
17
18<para><userinput>ln -s ../usr/bin/cpp:</userinput> This
19creates the $LFS/lib/cpp symlink. Some packages explicitly try to find
20cpp in /lib.</para>
21
22<para><userinput>ln -s ../bin/cpp:</userinput> This
23creates the $LFS/usr/lib/cpp symlink as there are packages that expect
24cpp to be in /usr/lib.</para>
25
26</sect2>
27
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