https://gcc.gnu.org/bugzilla/show_bug.cgi?id=60263
Jonathan Wakely <redi at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED Resolution|--- |FIXED Target Milestone|--- |6.0 --- Comment #3 from Jonathan Wakely <redi at gcc dot gnu.org> --- The macros are predefined by the compiler in 5.1, and the <cuchar> header is present in gcc 6. I don't think we need to keep this bug SUSPENDED pending the resolution of LWG 2237 because we don't necessarily need to change anything however the issue gets resolved.