Gnat Compiling Sage-St Ada Code?

[NonStickSpam <pinkmail@lemur.org>]

I'm trying to compile some Ada Sage-St code with the Gnat compiler 
(translator), and am having problems.  I can compile a very simple ada 
program that prints out text, etc.. so gnat works fine with that.  I can 
open Sage DFL's with the Sage tools, view the relations, and everything.  
So, the Sage general tools work fine.

The moment I try to compile Ada code using Sage, it gets very unhappy.  If I 
have a 10 line program with a simple "with Sage;" it dies looking for 
sage.ads.  I tried to link against the Sage DLL's, but without any success, 
so finally I copied the SAGE.ADS code into the directory, but that blows up 
in a big way trying to compile with GNAT.

So, is it possible to build an appliaction with gnat and sage.. and if so, 
what arguments/paths should I use?  Or, should I be trying a different 
compiler..

thanks!