Brian Dessent wrote: > > I want to create binarys on this systems that I can use on > > all boxes. So i tried to compile my gcc on my i686 machine > > using Upon re-reading your question, I might have misunderstood. If you are asking about recompiling gcc, then that is not necessary at all. Gcc has but a single x86 backend, and it can generate code for the entire spectrum of x86 -march options listed in the manual. So there is no need to rebuild gcc to generate 486 code. Just compile your software with your normal gcc with -march=486. The only potential reason that you might want to recompile gcc is to change its *default* -march. This is the -march that it will use if none is specified, and this can be set by the --with-arch configure option when building gcc. However, going to the trouble of rebuilding gcc just to change its default -march is massive overkill. You could e.g. just set CFLAGS in your .bashrc so that the desired -march is always supplied. Or you could use a config.site file to give site-specific autoconf flags and specify CFLAGS there. Or you could just edit gcc's specs file and add the desired -march there. None of these require rebuilding the compiler. Brian
