I have a object file, which was compiled with SUN's Forte compiler v.5.0. There are certain API function calls provided in that object file which I'm using in another program. I'm using the GNU compiler v.3.2 to compile my sample program. During the linking phase, I get receive undefined symbol errors for the function calls. After reading some of the documentation and some playing around, I believe my issue has to do with name mangling due to two compilers' implementation of their application binary interface (API)? Is that correct? I have currently two ways of getting around this problem: 1. Simply use the SUN forte compiler. 2. Create a mapfile for ld(1) to use. I used nm(1) to grab the explicit values from the provided object file and then mapped my function's symbols to those values. I'd like to pursue option #2 further, because I don't directly own the source code which produced the original object file. Yet, I'm still looking for a more eligant way to resolve the symbol resolution. Is there a way to influence the symbol generated for an object by certain directives within the source code? Perhaps some sort of "#pragma" or some asm call? Thanks, Jon Miller Unix Systems Engineer