http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59870
--- Comment #5 from Marc Glisse <glisse at gcc dot gnu.org> --- (In reply to Chengnian Sun from comment #4) > I realize that the options "-Wall -Wextra" do not enable all the warnings. > Is there a flag in GCC which enables all the available warning types, > similar to -Weverything in Clang? No. People regularly ask for it (I even have a (probably bad) patch in PR 53313), but there is some reluctance among gcc developers who tend to believe that if this option includes absolutely every warning, people will complain that it includes useless self-contradictory stuff (they will refuse to read the doc that says -Weverything isn't for real use, only to help you discover new -Wsomething), and if it doesn't, it is useless.
