40     alias __gthread_key_t = pthread_key_t;  variable
53     alias __gthread_key_t = int;  variable
57     extern (D) int __gthread_key_create(__gthread_key_t*, GthreadDestroyFn)  in __gthread_key_create()  argument
62     extern (D) int __gthread_key_delete(__gthread_key_t)  in __gthread_key_delete()  argument
67     extern (D) void* __gthread_getspecific(__gthread_key_t)  in __gthread_getspecific()  argument
72     extern (D) int __gthread_setspecific(__gthread_key_t, void*)  in __gthread_setspecific()  argument
97     int __gthr_win32_key_create(__gthread_key_t* keyp, GthreadDestroyFn dtor);
98     int __gthr_win32_key_delete(__gthread_key_t key);
99     void* __gthr_win32_getspecific(__gthread_key_t key);
100     int __gthr_win32_setspecific(__gthread_key_t key, const void* ptr);
109     alias __gthread_key_t = c_ulong;  variable