[Bug c++/27408] New: g++ -force_flat_namespace fails due to crt3.o multiply defined symbols

[peter at pogma dot com]

03-May-2006 12:37 PM Peter O'Gorman:
g++ -force_flat_namespace dies with multiple definition of symbols in libSystem
and crt3.o on Mac OS X 10.4.

peter$ /opt/gcc_mainline/bin/g++ -force_flat_namespace -o foo foo.cpp
/opt/odcctools/bin/ld: multiple definitions of symbol _atexit
/opt/gcc_mainline/lib/gcc/powerpc-apple-darwin8.6.0/4.2.0/crt3.o private
external definition of _atexit in section (__TEXT,__text)
/usr/lib/libSystem.dylib(atexit.So) definition of _atexit
/opt/odcctools/bin/ld: multiple definitions of symbol ___cxa_atexit
/opt/gcc_mainline/lib/gcc/powerpc-apple-darwin8.6.0/4.2.0/crt3.o private
external definition of ___cxa_atexit in section (__TEXT,__text)
/usr/lib/libSystem.dylib(atexit.So) definition of ___cxa_atexit
collect2: ld returned 1 exit status

I expected the link to succeed. This bug is also an Apple radar -
rdar://problem/4535166

Peter


-- 
           Summary: g++ -force_flat_namespace fails due to crt3.o multiply
                    defined symbols
           Product: gcc
           Version: 4.2.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: peter at pogma dot com
  GCC host triplet: *-*-darwin8*


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=27408