Building GPS from CVS

Since I couldn't find a daily snapshot I wanted to try and build GPS  
from source.  I obtained the source from CVS on my Fedora 3 linux box  
and attempted to build.  I have GtkAda 2.4.0 in /usr/local and I set  
the prefix for gps configure to /usr/gnat

When I run the make command I get several failures.  I'm don't  
understand one piece of the INSTALL file that says to create a link  
called "gnat_src" and point it to something like "gcc/gcc/ada"  As  
far as I can tell using locate, I don't have any such directory.   
What should I actually point this link to?  If I knew the name of an  
actual file then I could search for it.

All help appreciated.

--Bob