https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69471
--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> --- Some discussion at https://gcc.gnu.org/ml/gcc/2016-01/msg00000.html However ... (In reply to wavexx from comment #0) > Since I generally override the default flags in makefiles by appending > exceptions where needed, I expect the regular behavior where the last flags > overrides previous ones and thus found the current behavior unexpected. Why would either you or the makefile add something like -march=opteron on a haswell host? Surely the makefile should only add option that make sense, and you should only override them with options that make sense.
