Brendan Gillatt writes: > Have you got the development package for libglib installed? I would=20 > imagine > that is where glib.h is to be found. Thanks! That was where the problem was. It appears to have built and the only problem I see now is that if you call gpsim, it can't find shared library libgpsim.so.0. That library was built as I can see it right there in the source so I will need to figure out where to move it so gpsim sees it. Sometimes, it is the LOAD_LIBRARY_PATH environment variable but I need to look up the proper place in Debian Linux for third-party shared libraries. Anyway, thank you for your help. It broke the log jam. Martin WB5AGZ --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .