http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60498
Jakub Jelinek <jakub at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED Resolution|--- |INVALID --- Comment #6 from Jakub Jelinek <jakub at gcc dot gnu.org> --- As C++ isn't C, obviously it g++ -std=c++11 doesn't define __STDC_VERSION__ macro, but just defines __STRICT_ANSI__ 1 __cplusplus 201103L Should be more than enough for cygwin headers to do the right thing.