1) Various missing links out from exports/include/X11 to various .h files in lib/X11 and sub-directories, stopped compilation in XWin.
I left some things out when commiting the xfree 4.3.0 sources: xc/programs/* (except Imakefile and Xserver) xc/doc xc/fonts xc/workInProgress
None of these should result in the error you reported.
Are these files sill missing after "make includes" in xc/lib/X11?
The integrated clipboard manager requires the Xlib headers... which are not in the build tree anymore. I had to change it from #include "foo.h" to #include <X11/foo.h>. Unfortunately, this means that you must already have Cygwin/XFree86 installed with the -prog package... otherwise those headers won't be found. The only other way to solve this is to put those headers back into the tree... which might be more of a pain than a real solution.
I already updated the files in question in CVS... just do an update in hw/xwin.
Harold