[Ada] new "-margs" flag to gnatmake

[Florian Weimer]

<guerby@acm.org> writes:

> gnatmake currently handle multiple "-cargs", "-bargs" or "-largs"
> sections, however it is not currently possible to go back to the
> "normal" section, this is annoying for GNOME-like xxx-config tools.

There's a proposal for these kind of scripts which should address
this problem, and it even avoids cluttering the PATH, see
http://cert.uni-stuttgart.de/projects/ada/gnae.php .