Re: Ada & MacOS

[Jean-Pierre Rosen <rosen@adalog.fr>]

sg a �crit :
  > OK but how with the compatibility of code compiled on Gnat that is part
> of GCC between MacOS, Windows and Linux ?
> 
Since you insist on the issue of differences between compilers, I see 
that you come from another world :-), therefore some clarification may 
be in order.

All Ada compilers (not only the various incantations of Gnat) compile 
*exactly* the same language. Full Stop.

Differences you may find are related to
- Places where the language purposedly defines things as "implementation 
dependent"

- Usage of some pragmas where the language allows them to be 
implementation defined.

- Differences in libraries.

For the first two, it is easy to simply avoid using the features. Ada 
was designed to *allow* benefitting from the peculiarities of a machine, 
  but the language is powerful enough to write almost anything without 
resorting to these.

For libraries (and especially GUI libraries like GTK), it is not a 
matter of compiler, it is a matter of... libraries. Simply choose a 
library that has been ported to the OSs you want to target.

-- 
---------------------------------------------------------
            J-P. Rosen (rosen@adalog.fr)
Visit Adalog's web site at http://www.adalog.fr