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

[rolf.ebert.gcc at gmx dot de]

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

--- Comment #23 from Rolf Ebert <rolf.ebert.gcc at gmx dot de> 2012-12-11 19:57:34 UTC ---
I see Eric's point in that the patch in comment #5 hides another bug in the
Makefile chemistry. There seems to be an unnecessary dependency from the
gnattools on multilibs.  Reminds me of #19959