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

["howarth at nitro dot med.uc.edu" <gcc-bugzilla at gcc dot gnu dot org>]

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

           Summary: gcc.dg/debug/pr41893-1.c -gdwarf-2 testsuite failures
                    on darwin
           Product: gcc
           Version: 4.6.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: debug
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: howarth@nitro.med.uc.edu


The new gcc.dg/debug/pr41893-1.c testcase fails on darwin as...

FAIL: gcc.dg/debug/pr41893-1.c -gdwarf-2 -g1 (test for excess errors)
FAIL: gcc.dg/debug/pr41893-1.c -gdwarf-2 -g1 -O (test for excess errors)
FAIL: gcc.dg/debug/pr41893-1.c -gdwarf-2 -g1 -O3 (test for excess errors)
FAIL: gcc.dg/debug/pr41893-1.c -gdwarf-2 (test for excess errors)
FAIL: gcc.dg/debug/pr41893-1.c -gdwarf-2 -O (test for excess errors)
FAIL: gcc.dg/debug/pr41893-1.c -gdwarf-2 -O3 (test for excess errors)
FAIL: gcc.dg/debug/pr41893-1.c -gdwarf-2 -g3 (test for excess errors)
FAIL: gcc.dg/debug/pr41893-1.c -gdwarf-2 -g3 -O (test for excess errors)
FAIL: gcc.dg/debug/pr41893-1.c -gdwarf-2 -g3 -O3 (test for excess errors)

where the form of the failure is...

/sw/src/fink.build/gcc46-4.6.0-1000/darwin_objdir/gcc/xgcc
-B/sw/src/fink.build/gcc46-4.6.0-1000/darwin_objdir/gcc/
/sw/src/fink.build/gcc46-4.6.0-1000/gcc-4.6-20101201/gcc/testsuite/gcc.dg/debug/pr41893-1.c
-gdwarf-2 -g1 -flto -fwhole-program -O
/sw/src/fink.build/gcc46-4.6.0-1000/gcc-4.6-20101201/gcc/testsuite/gcc.dg/debug/pr41893-2.c
-lm -m32 -o pr41893-1.exe
warning: (i386) /var/tmp//cchADStB.ltrans0.ltrans.o unable to open object file
warning: no debug symbols in executable (-arch i386)

>From the output with -v this appears to be a dsymutil related issue...

 /sw/src/fink.build/gcc46-4.6.0-1000/darwin_objdir/gcc/as -arch i386
-force_cpusubtype_ALL -o /var/tmp//ccyf23lE.ltrans0.ltrans.o
/var/tmp//ccJ7sllh.s
COMPILER_PATH=/sw/src/fink.build/gcc46-4.6.0-1000/darwin_objdir/gcc/:/sw/src/fink.build/gcc46-4.6.0-1000/darwin_objdir/gcc/
LIBRARY_PATH=/sw/src/fink.build/gcc46-4.6.0-1000/darwin_objdir/gcc/i386/:/sw/src/fink.build/gcc46-4.6.0-1000/darwin_objdir/gcc/i386/:/sw/src/fink.build/gcc46-4.6.0-1000/darwin_objdir/gcc/:/sw/src/fink.build/gcc46-4.6.0-1000/darwin_objdir/gcc/i386/:/sw/src/fink.build/gcc46-4.6.0-1000/darwin_objdir/gcc/:/usr/lib/:/usr/lib/
COLLECT_GCC_OPTIONS='-c' '-mmacosx-version-min=10.6.5' '-B'
'/sw/src/fink.build/gcc46-4.6.0-1000/darwin_objdir/gcc/' '-gdwarf-2' '-g1'
'-fwhole-program' '-O' '-m32' '-v' '-mtune=core2' '-dumpdir' './' '-dumpbase'
'pr41893-1.exe.ltrans0' '-fltrans' '-o' '/var/tmp//ccyf23lE.ltrans0.ltrans.o'
COLLECT_GCC_OPTIONS='-mmacosx-version-min=10.6.5' '-B'
'/sw/src/fink.build/gcc46-4.6.0-1000/darwin_objdir/gcc/' '-gdwarf-2' '-g1'
'-flto' '-fwhole-program' '-O' '-m32' '-v' '-o' 'pr41893-1.exe' '-mtune=core2'
 dsymutil pr41893-1.exe
warning: (i386) /var/tmp//ccyf23lE.ltrans0.ltrans.o unable to open object file
warning: no debug symbols in executable (-arch i386)