installation trouble

Hi, I wrote earlier and got no response. Now I'm trying again. I installed gpc on a new machine with redhat 9. I can compile and run easy demo programs. But any program the has C-code in it, or uses a unit with C-code, gets rejected. Under gp, the message is gp: Pascal and C compilers specified seem to be for different platforms gp: ('i686-pc-linux-gnu' and 'i386-redhat-linux') Using gpc directly, I can compile the unit crt.pas, but when I try to compile a program that uses it, I get a message saying that crt.gpi needs to be recompiled. Recompiling crt.gpi does not change anything. What do I need to do to get some version of gpc working on this system? thanks, Toby