message: Do not use thread_local for MinGW
diff: # ifdef __APPLE__
  # define CAF_NO_THREAD_LOCAL
  # endif
  +# ifdef __MINGW32__
  +# define CAF_NO_THREAD_LOCAL
  +# endif
  #elif defined(_MSC_VER)
  # define CAF_MSVC
  # define CAF_LIKELY(x) x
  