distribution feature not supported

From: antonio (bergnoli_at_pd.infn.it)
Date: 03/11/04 

Date: 11 Mar 2004 08:03:44 -0800

Im running debian sarge and i try to compile an example of gnat-glade package
but gnatdist stops with this message:

gnatdist: building controller caller stubs from controller.ads
distribution feature not supported
compilation abandoned
gnatdist: /usr/bin/gnatgcc failed
gnatdist: *** can't continue

sorry but i don't know the matter. anyone can help me?
thank you in advance