https://gcc.gnu.org/bugzilla/show_bug.cgi?id=89864
--- Comment #16 from Erik Schnetter <schnetter at gmail dot com> --- The proper way to fix this via fixinclude is to replace declarations such as _Atomic u_long with _Atomic(u_long) which is still legal in C. In C++, one can then add #include <stdatomic> #ifndef _Atomic #define _Atomic(T) std::atomic< T > #endif to create proper C++ code.
