https://gcc.gnu.org/bugzilla/show_bug.cgi?id=122167
--- Comment #2 from kab at acm dot org --- Oops, sorry, I cut and pasted the wrong warning message. I get the same "type attributes ignored after type is already defined". The -Wignored-attributes warning is from clang for the same test case. (I suspect the clang warning has been recently fixed.). Visual Studio does not complain.
