Hi Tom, list, I'm having this problem getting pdp to configure on OSX 10.2.4 checking for main in -lgslcblas... no checking for main in -lgsl... no ERROR: libgsl not found I have installed libgsl with fink and can see the libgsl files in my folder /sw/lib/ do i need to move these files elsewhere so pdp's configure file can find them? Thanks, Rob