I should be more thorough before I post. I just compared the files in the X86 and X86-64 repositories. The x86-64 contains more files, including some that are required for building GMPC, e.g. libpangocairo-1.0.la which I had initially posted about. So I guess even though I am building in 32bit, I need to get those from the x86_64 repository. The architecture does not matter for these?