[Bug libbacktrace/97082] new test 'mtest' fails for Mach-O/Darwin.

[ian at airs dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97082

--- Comment #6 from Ian Lance Taylor <ian at airs dot com> ---
I think that mtest should pass now on Darwin.  I think the dwarf5 tests may
still be failing.  This seems to be because dsymutil does not understand
dwarf5, at least on the compile farm macOS machine that I have access to.