https://gcc.gnu.org/bugzilla/show_bug.cgi?id=104183
Iain Sandoe <iains at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED Resolution|--- |WONTFIX Keywords| |rejects-valid Last reconfirmed| |2022-1-22 --- Comment #1 from Iain Sandoe <iains at gcc dot gnu.org> --- Yes, I can repeat this, it is quite possible that there are several/many C++11 bugs on this branch, however GCC-6 branch has been closed for some time now (so we cannot update it here). If you can determine which patch(es) fixed this on the 7 branch then perhaps you could back port them locally for the macports GCC-6.5 branch.