[Bug debug/46749] gcc.dg/debug/pr41893-1.c -gdwarf-2 testsuite failures on darwin

[howarth at nitro dot med.uc.edu]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46749

--- Comment #1 from Jack Howarth <howarth at nitro dot med.uc.edu> 2010-12-01 
17:50:25 UTC ---
This failure appeared after r167289 but by r167301.