Ada and Mesa

[berlichr@afal30 (Ruediger Berlich)]

Hi all,
I think about migrating from C/C++ to Ada. I've been looking for a 
language, that meets a couple of demands, thereby preserving the power
of C++.
On my wish-list are :
- The language should be standardised
- There should be threads 
- Object-oriented programming
- Portability 
- Libraries for graphics-programming available.
O.k., Ada9x seems to fit the first three requirements.
I don't know about the fourth point. As far as I can see, there is only
GNAT, which is available on a majority of platforms. As it is under the 
GPL, I am not sure, whether I can develop commercial programs with it.
I would be glad, if someone who develops commercial programs with GNAT,
could send me his/her experiences concerning the GPL.
The fifth point : I couldn't find any hint that there do exist bindings
from Ada9x to e.g. X11. I have an Ada-Tutorial from some WWW-server, which
explains Ada9x for C/C++-programmers. It says something about the possibility tolink with existing C/C++/Fortran-object-files.
So does this mean, it is possible to call e.g. xlib or xtoolkit-functions
from Ada, just as you would from Frotran for example ?
Is it possible to use the Mesa-library or other OpenGL-packages ?
Thanks for any hint.

Please reply via mail to
berlich@pc66.mppmu.mpg.de]

Bye and have a nice day,
Ruediger