[SLE] X.h???

I've been trying unsuccessfully to compile some windowmaker dock apps. Typically the make will abort claiming that the following files are missing: X11/X.h X11/Xlib.h X11/Xutil.h X11/Xproto.h Maybe I'm being stupid, but I can seem to find those files either on my system or on the SuSE distribution disks. (6.4) What am I missing? TIA, Peter -- To unsubscribe send e-mail to suse-linux-e-unsubscribe@suse.com For additional commands send e-mail to suse-linux-e-help@suse.com Also check the FAQ at http://www.suse.com/Support/Doku/FAQ/