https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87656
--- Comment #7 from David Binderman <dcb314 at hotmail dot com> --- (In reply to David Binderman from comment #6) > I'd like to vote for -Wduplicated-cond being in either -Wextra or -Wall. > > I only just found it last week (thanks to Weverything discussion) > and it is proving useful in finding bugs in fedora rawhide. -Wduplicated-branches in -Wextra too. I've switched on both in my local copy of gcc. Useful.