Dear Brian, dear gcc-help, Brian Dessent wrote: > No, the x86_64 target is multilibbed by default, meaning the compiler > will try to build two copies of all support libraries, one 32 bit and > one 64 bit, in order to support building either flavor with -m32 and > -m64 switches. You can --disable-multilib if you don't want this. If > you don't have the 32 bit libc development headers installed it would be > a better idea to just install them, rather than going without multilib > capabilities. It's a simple package to install in most distros. Yes, it is simple --- if one knows the package name :) After some google search i found that it is part of glibc, and now stubs-32.h is in my /usr/include/gnu/ Now i try to build gcc 4.2.1 again! Thank you very much! Simon