Error Compiling From Source On PowerPC-Apple-Darwin8.4.0

Hello Everyone,

I'm taking a programming languages course and one of the languages  
we're gonna be covering a little bit is prolog.  I downloaded the  
latest source (as far as I can tell), and ./configure went fine, but  
when I did make, I got this error

	gplc -c -C '-O3 -fomit-frame-pointer -funsigned-char' error_supp.c
	In file included from /Users/tim/gprolog-1.2.16/src/EnginePl/ 
engine_pl.h:40,
         	         from error_supp.c:34:
	/Users/tim/gprolog-1.2.16/src/EnginePl/obj_chain.h:85: error: static  
declaration of 	
			'obj_chain_stop' follows non-static declaration
	/Users/tim/gprolog-1.2.16/src/EnginePl/obj_chain.h:79: error:  
previous declaration of
			'obj_chain_stop' was here
	compilation failed
	make[1]: *** [error_supp.o] Error 1
	make: *** [all] Error 1

Solving this is far above my level of experience as a coder, and I've  
never worked with C before, just Java and C++.  I tried to comment  
out the previous declaration and that got rid of this particular  
error, however, the same error (almost) showed up later in the  
compilation process in a different source code section.

Any help would be greatly appreciated!  :)

In Christ,

Tim Visher
Peniel Worship Ministries
Cell Phone: 610-955-7083
http://www.penielworship.com/