https://gcc.gnu.org/bugzilla/show_bug.cgi?id=53431
--- Comment #15 from Jonathan Wakely <redi at gcc dot gnu.org> --- (In reply to Jeffrey Walton from comment #13) > This issued caused Crypto++ to remove -Wall (and above) under GCC. That seems to be throwing the baby out with the bathwater. Why not simply use -Wall -Wno-unused-value -Wno-unused-variable ?