https://gcc.gnu.org/bugzilla/show_bug.cgi?id=26950
Jonathan Wakely <redi at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Known to work| |4.4.0 Target Milestone|--- |4.4.0 --- Comment #6 from Jonathan Wakely <redi at gcc dot gnu.org> --- This is rejected in C++11 mode (and later) since GCC 4.4.0 It was fixed somewhere between r139600 and r139623, almost certainly by r139611 (which added scoped enum support).