GTK Build from source

["RasikaSrinivasan@gmail.com" <RasikaSrinivasan@gmail.com>]

GPS 4.1.3 (20070913) hosted on pentium-mingw32msv
GNAT GPL 2007 (20070405-41)

All

The above is my GPS environment on a Windows XP laptop.

I downloaded the sources for gtkada today. I tried to build gtk with
the gpr files provided.

testgtk failed to build with the following error :
---------------------
cannot generate code for file view_gl.ads (package spec)
to check package spec for errors, use -gnatc
gnatmake: "c:\documents and settings\r srinivasan\my documents\projects
\tools\gtkada\sources\gtkada-2.10.2\gtkada-2.10.2\testgtk\opengl
\view_gl.ads" compilation error

process exited with status 4
=========================

gdialog failed to build with the following message :

a\sources\GtkAda-2.10.2\GtkAda-2.10.2\src\gtkada-intl.ads"
cannot generate code for file gtkada-intl.ads (package spec)
to check package spec for errors, use -gnatc
gnatmake: "c:\documents and settings\r srinivasan\my documents\projects
\tools\gtkada\sources\gtkada-2.10.2\gtkada-2.10.2\src\gtkada-intl.ads"
compilation error

process exited with status 4

==================

Clearly there is something I am missing. Since I have just started
using GPS (I used to use just command line gnatmake) I am looking for
some advice.

thanks, srini