problem compiling CVS

I'm getting an error trying to compile the CVS code I downloaded this 
afternoon (approx 2PM eastern US time.) I'm fine until I do a "./configure 
--prefix=/usr" and even THAT goes fine until... well, here's a clip of the 
output:

checking X11/extensions/scrnsaver.h usability... no
checking X11/extensions/scrnsaver.h presence... yes
configure: WARNING: X11/extensions/scrnsaver.h: present but cannot be compiled
configure: WARNING: X11/extensions/scrnsaver.h: check for missing prerequisite 
headers?
configure: WARNING: X11/extensions/scrnsaver.h: proceeding with the 
preprocessor's result
checking for X11/extensions/scrnsaver.h... yes
checking for XScreenSaverRegister in -lXext... no
checking for XScreenSaverRegister in -lXExExt... no
checking for XScreenSaverRegister in -lXss... yes
checking for gethostent in -lnsl... yes
checking for connect... (cached) yes
configure: error: conditional "HAVE_ORBIT" was never defined.
Usually this means the macro was only invoked conditionally.

[end]
What's the problem??? How do I get it to compile? when I try to run "make" I 
get an error "make: *** No targets specified and no makefile found.  Stop."

I've compiled CVS before... but this is the first time since I installed RH 
8.0. Maybe I left off some package???
Thanks...