I'm trying to do a full build of X following the instructions in the X.org Modular Builders Guide. It get an error trying to build the xcb/libxcb directory, that I am missing a library called "pthread-stubs xau"....I have pthread installed but yum cannot find anything called either pthread-stubs or xau...and I don't think that xau is actually a missing library, but what it is I have no idea. Yes, that is how it shows in the configure error output. Does anyone know what/where/how I can find this library?