#2602: GCC 4.4.1
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Reporter: willimm | Owner: ra...@…
Type: task | Status: assigned
Priority: normal | Milestone: 6.5
Component: BOOK | Version: SVN
Severity: blocker | Keywords:
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Comment(by bdu...@…):
I've taken a look at gcc in BLFS and have a couple of questions that may
need to be addressed in the book.
1. Why are we rebuilding C and C++? I don't know of any advantages of
doing so unless the user is upgrading to a newer version of gcc.
2. The currenet instructions have: --enable-
languages=c,c++,ada,fortran,java,objc,treelang
This does not seem to be optimal. I suggest putting a placeholder here
and having the user actively decide what languages to actually build. I'd
also go as far as telling a user that building the Ada, Objective C,
treelang, Java, and FORTRAN compilers should only be done if they think
they'll need it. The only one of these I've needed is FORTRAN.
3. It should probably be mentioned that JDK also provides Java capability
so building that is an alternative to building gcc Java.
4. There should be a note that if you are building a kernel module, then
the compiler should be the same one as used for the kernel build. In
other words, if you are going to upgrade gcc's C compiler, then rebuild
your kernel too.
5. It follows that the user should be warned that when rebuilding the
kernel, never reinstall the kernel's headers because glibc depends on the
headers used when glibc was built.
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Ticket URL: <http://wiki.linuxfromscratch.org/blfs/ticket/2602#comment:16>
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