[Bug driver/57238] GCC passes --gdwarf2 to assembler despite -gdwarf-4 on command line

[pinskia at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57238

--- Comment #2 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
I don't see how this is wrong.  Mixing dwarf4 and dwarf2 should be ok.