source: chapter05/gcc-local-exp.sgml@ e22f1f0

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Last change on this file since e22f1f0 was 6370fa6, checked in by Gerard Beekmans <gerard@…>, 23 years ago

Initial commit - LFS 2.4.4 files

git-svn-id: http://svn.linuxfromscratch.org/LFS/trunk/BOOK@14 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689

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1<sect2>
2<title>Command explanations</title>
3
4<para>
5<userinput>--with-local-prefix:</userinput> GCC installs a number of
6files in /usr/local even when --prefix is set to something else. We
7don't want that to happen in this case so that's why we use the
8--with-local-prefix option to change that path.
9</para>
10
11<para>
12<userinput>--with-gxx-include-dir:</userinput> GCC installs the C++
13header files in /usr/include/g++ by default. Again, in this case we
14don't want that to happen, we want this GCC version to be installed
15completely under /usr/local/gcc2952.
16</para>
17
18<para>
19<userinput>make bootstrap:</userinput> Compile GCC by bootstrapping it.
20Here that means the compiler will be built three times in total. First
21it is compiled with your system's default compiler (which will usually
22be a gcc or egcs compiler). This is stage 1 compiler. Then GCC will re-compile
23itself but instead of using your system's compiler it will use itself to
24compile itself again. This is the stage 2 compiler. Then it will compile
25itself a second time with the stage 2 compiler and compares the second
26and the third build to see if they are identical. If so, the
27compilation was a success.
28</para>
29
30</sect2>
31
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