https://gcc.gnu.org/bugzilla/show_bug.cgi?id=55578
--- Comment #10 from Vadim Zeitlin <vz-gcc at zeitlins dot org> --- There definitely was a change in behaviour in gcc 11 because I had to make this change https://github.com/wxWidgets/wxWidgets/commit/95c98a0b5ff71caca6654327bf341719c6587766 to avoid getting warnings with it that we didn't get with the previous versions. The idea there is that we define some macros whose expansion contains declarations of overridden virtual functions, which inevitably results in -Wsuggest-override when used in user classes using or not using "override" for their other functions, so we have to disable this warning locally. wxWARNING_SUPPRESS_MISSING_OVERRIDE, which expands to _Pragma("GCC diagnostic push") _Pragma("GCC diagnostic ignored \"-Wsuggest-override\"") worked for this until gcc 11 but not with it.
