Can you find out which compiler was used to compile a program?

Question

Given an executable that is compiled from C to run on Solaris, is it possible to determine which compiler was used to compile the associated incomplete executable?

I can

Answer 1

Build small test apps with each compiler you're trying to identify. Then look at the results in a hex editor, and try to find patterns. It might turn out to be really obvious -- for example the "Rich" signatures from Microsoft's linker.