http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55651
--- Comment #3 from joseph at codesourcery dot com <joseph at codesourcery dot com> --- On Mon, 4 Nov 2013, mingjie.xing at gmail dot com wrote: > 2013-11-04 Mingjie Xing <mingjie.x...@gmail.com> > > * common.opt (Wa, Wl, Wp,): Change JoinedOrMissing to Joined. That sounds wrong. Empty arguments are valid here and should be passed down as such. See the thread starting at <http://gcc.gnu.org/ml/gcc-patches/2010-04/msg00848.html> where a change to the handling of empty arguments was rejected.
