THREAD_ATOMIC_START  138 regint.h       #define THREAD_ATOMIC_START     EnterCriticalSection(&gOnigMutex)
THREAD_ATOMIC_START  147 regint.h       #define THREAD_ATOMIC_START     pthread_mutex_lock(&gOnigMutex)
THREAD_ATOMIC_START  161 regint.h       #define THREAD_ATOMIC_START     /* depend on thread system */