https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82018
--- Comment #9 from janus at gcc dot gnu.org --- (In reply to Thomas Koenig from comment #7) > I expect strong negative feedback if -Wextra starts emitting > lots of warnings about code which is not problematic. Well, a few points here: 1) gfortran has been including these kinds of messages even with -Wall until version 5, so having them in -Wextra is probably not too bad. 2) They may be considered useful by some people (me for example), even though not by everyone. 3) In my understanding -Wextra is a collection of warning messages that may not be considered useful for everyone, while -Wall is a collection that is expected to be useful for most people (i.e. a useful default in terms of warnings). To my mind moving -Wconversion-extra from -Wall to -Wextra is a reasonable approach.