Hello, My platform is AMD-64 running Fedora 4 64-bit version. Is there a way for me to compile and generate 32-bit version of a program ( in C )? How does one do that using GCC ? Since 64-bit version also install all the 32-bit compatibility library, that should not be a problem, is it ? One of the reasons I want to do this because I have an object file ( .o ) that I need to link againts, but the object file is in 32-bit, and I don't have the source to regenerate the object file. During linking, ld generates warning : /usr/bin/ld: warning: i386 architecture of input file `api/render.o' is incompatible with i386:x86-64 output and the program will segfaults if run, which does not happen if I compiled the program in 32-bit machine. But since my working desktop is 64-bit, I am wondering if there's a way for me to do it without having to look for 32-bit machine. Thanks for any help. RDB -- Reuben D. Budiardja Dept. Physics and Astronomy University of Tennessee, Knoxville, TN