[Bug target/55243] STAMP variable is not defined in t-avr

[ebotcazou at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55243

--- Comment #30 from Eric Botcazou <ebotcazou at gcc dot gnu.org> 2012-12-20 21:45:11 UTC ---
> Almost nothing in GCC was added without precedent: Features were added because
> backend X needed them or frontend Y needed them.  To reject an extension just
> because only one target needs it, is not an convincing argument.

I totally disagree of course.  You must first try to fit in the existing design
and, only when that fails, you're allowed to propose extensions.

> It's still not known why the ada / gnat stuff rebuilds stuff already there a
> sectons time and at a stage ada / gnat don't expect such a build.

Indeed.

> If I understand correctly, someone familiar with the gnat build machiney and
> philosophy might want to find out why it performs a mistimed rebuild of things
> that are elready supposed to be there?  

Yes, that's the crux of the matter.