[Bug libgomp/65467] [libgomp] sorry, unimplemented: '_Atomic' with OpenMP

[jakub at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=65467

--- Comment #1 from Jakub Jelinek <jakub at gcc dot gnu.org> ---
This is indeed just a big hammer approach.
The OpenMP standard only supports C up to C99 and C++ up to C++98 at this
point, for _Atomic it is non-trivial to figure out how it should behave with
different clauses etc.  But indeed, it would be better to just complain only if
_Atomic is somehow used in OpenMP regions, but that would require first writing
testcases for all the different possibilities where _Atomic could appear.