http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55243
Bug #: 55243 Summary: STAMP variable is not defined in t-avr Classification: Unclassified Product: gcc Version: 4.7.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: target AssignedTo: unassig...@gcc.gnu.org ReportedBy: rolf.ebert....@gmx.de Building AVR cross compiler for Ada (GNAT) fails as t-avr contains no valid command in the STAMP variable easiest work-around is to replace it with 'echo' command. sed -i -e 's/$(STAMP)/echo timestamp >/' gcc/config/avr/t-avr