HI all !!!
My kernel is Linux 2.6.12-9-amd64-generic #1 Mon Oct 10 13:27:39 BST 2005 x86_64 GNU/Linux. I want to build LFS on it, when I try to compile GCC-4.0.2 some error occured :
--- configure [ok]
--- make bootstrap [error]
/tools/x86_64-unknown-linux-gnu/bin/ld: skipping incompatible /usr/lib/../lib/libc.so when searching for -lc
/tools/x86_64-unknown-linux-gnu/bin/ld: skipping incompatible /usr/lib/../lib/libc.a when searching for -lc
/tools/x86_64-unknown-linux-gnu/bin/ld: skipping incompatible /usr/lib/libc.so when searching for -lc
/tools/x86_64-unknown-linux-gnu/bin/ld: skipping incompatible /usr/lib/libc.a when searching for -lc
/tools/x86_64-unknown-linux-gnu/bin/ld: cannot find -lc
collect2: ld returned 1 exit status
make[3]: *** [32/libgcc_s.so] Error 1
make[3]: Leaving directory `/media/lfs/s/gcc/gcc'
make[2]: *** [stmp-multilib] Error 2
make[2]: Leaving directory `/media/lfs/s/gcc/gcc'
make[1]: *** [stage1_build] Error 2
make[1]: Leaving directory `/media/lfs/s/gcc/gcc'
make: *** [bootstrap] Error 2

How can I solve my prob ???
Everybody ! Please help me !!!

Send a bug report to the mailing list of LFS.

Or try build the LFS 6.1 Stable which should work.

I had the same

cannot find -lc
collect2: ld returned 1 exit status

problem with LFS-BOOK-6.1 and I decided that I forgot to issue "make install" after "make" (I do not remember, which package exactly it was), because I had a break between two compilings. So I did "make install" for the package before the problematic one and then repeated compiling the problematic package. Everything went fine. Although I am not sure that I did not "make install" twice for the first package.

Thanks mr_demilord !!!

Does kernel amd64 support for Linux from Scratch ???

I think it doesn't .?!?!?!?

When I use kernel 2.6.12, LFS work OK . Why kernel amd64 does not work ???