[Bug c++/60932] make stdatomic.h compatible with C++

[sebastian.hu...@embedded-brains.de]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=60932

--- Comment #2 from Sebastian Huber <sebastian.hu...@embedded-brains.de> ---
So I cannot use C libraries using atomics with C++ on GCC targets?  With
FreeBSD and clang this works fine.