Summarised view of directories, from overview.txt

docs/			This directory
libGL/			Code for user program library libGL.so
mesa/			YOU must create link to a Mesa tree.
			(Currently, expects Mesa 3.2)
servGL/			Top level for code that lives inside the X server
servGL/hwglx		hardware-accelerated bits
servGL/mesaglx		Place where source files from software
			GL renderer 'Mesa' get linked to, and
			then compiled into our module
servGL/mesaglx/X86	X86-specific stuff, like "3d-now".
			Also gets linked from Mesa codebase.

servGL/serverglx	Has the glxModuleData struct that holds the
			entry-point info for our Xfree module.
			As well as all the other generic GLX framework
			for the module
