The following changes have been made to this directory since R3:

     o	ICCCM routines have been added (size hints has grown).
     o	Additional Display* access routines added.
     o	Error handlers now return previous handlers.
     o	Streams support added.
     o	Bugs in 64bit architectures fixed.
     o	Text extents routines optimized.
     o	ANSI C prototypes added for C and C++
     o	SunOS shared libraries supported.
     o	use new imake library stuff.
