Fernando Apesteguía wrote: > Helo list, > > I'm using FC6 for x86_64. I need to compile a program for linux 32 > bits. I tried with the -m32 flag to gcc, but I got: > > core_recv.c:(.text+0x130): undefined reference to `__umoddi3' > > and tons of ld warnings: Just guessing, but try using gcc to do the link, again giving the -m32 switch instead of using ld. -Andy