+#include <pthread.h>
+
+#define GSSEAP_MUTEX pthread_mutex_t
+#define GSSEAP_MUTEX_INITIALIZER PTHREAD_MUTEX_INITIALIZER
+
+#define GSSEAP_MUTEX_INIT(m) pthread_mutex_init((m), NULL)
+#define GSSEAP_MUTEX_DESTROY(m) pthread_mutex_destroy((m))
+#define GSSEAP_MUTEX_LOCK(m) pthread_mutex_lock((m))
+#define GSSEAP_MUTEX_UNLOCK(m) pthread_mutex_unlock((m))
+
+#define GSSEAP_THREAD_KEY pthread_key_t
+#define GSSEAP_KEY_CREATE(k, d) pthread_key_create((k), (d))
+#define GSSEAP_GETSPECIFIC(k) pthread_getspecific((k))
+#define GSSEAP_SETSPECIFIC(k, d) pthread_setspecific((k), (d))
+
+#define GSSEAP_THREAD_ONCE pthread_once_t
+#define GSSEAP_ONCE(o, i) pthread_once((o), (i))
+#define GSSEAP_ONCE_INITIALIZER PTHREAD_ONCE_INIT
+