compiling native gcc-core on pure x86_64 fails

[Dennis Heuer]

Hello,

I tried quite a few pure x86_64 distros (Ubuntu 6.06, CentOS, VLOS,
etc.) as bases to install a pure x86_64 system from source for
my Sempron64 +2800 but in all cases the compilation of gcc-core failed
because of -m32 compatibility problems. First I thought that it's
the distros but, from what I see, gcc-core tries to compile a -m32
compatible version and switches from -m64 -march=k8 (my own settings)
to -m32 in the middle of compiling. Because I wanted a pure x86_64
system I used only pure x86_64 distros, and gcc-core wasn't able to
find a usable -m32 libc on that systems.

How can I configure gcc-core to not try to install any -m32 parts at
all?

Regards,
Dennis Heuer