diff --git a/headers/posix/pthread.h b/headers/posix/pthread.h
new file mode 100644
index 0000000000..fd40968ef5
--- /dev/null
+++ b/headers/posix/pthread.h
@@ -0,0 +1,62 @@
+#ifndef _PTHREAD_H_
+#define _PTHREAD_H_
+/* 
+** Distributed under the terms of the OpenBeOS License.
+*/
+
+
+#include <time.h>
+
+
+enum pthread_mutex_type {
+	PTHREAD_MUTEX_DEFAULT,
+	PTHREAD_MUTEX_NORMAL,
+	PTHREAD_MUTEX_ERRORCHECK,
+	PTHREAD_MUTEX_RECURSIVE,
+};
+
+enum pthread_process_shared {
+	PTHREAD_PROCESS_PRIVATE,
+	PTHREAD_PROCESS_SHARED,
+};
+
+
+struct _pthread_mutex;
+struct _pthread_mutexattr;
+
+typedef struct _pthread_mutex *pthread_mutex_t;
+typedef struct _pthread_mutexattr *pthread_mutexattr_t;
+
+//extern pthread_mutexattr_t pthread_mutexattr_default;
+
+extern pthread_mutex_t _pthread_mutex_static_initializer(void);
+extern pthread_mutex_t _pthread_recursive_mutex_static_initializer(void);
+#define PTHREAD_MUTEX_INITIALIZER \
+	pthread_mutex_static_initializer();
+#define PTHREAD_RECURSIVE_MUTEX_INITIALIZER \
+	pthread_recursive_mutex_static_initializer();
+
+/* mutex functions */
+extern int pthread_mutex_destroy(pthread_mutex_t *mutex);
+extern int pthread_mutex_getprioceiling(pthread_mutex_t *mutex, int *_priorityCeiling);
+extern int pthread_mutex_init(pthread_mutex_t *mutex, const pthread_mutexattr_t *attr);
+extern int pthread_mutex_lock(pthread_mutex_t *mutex);
+extern int pthread_mutex_setprioceiling(pthread_mutex_t *mutex, int newPriorityCeiling,
+				int *_oldPriorityCeiling);
+extern int pthread_mutex_timedlock(pthread_mutex_t *mutex, const struct timespec *spec);
+extern int pthread_mutex_trylock(pthread_mutex_t *mutex);
+extern int pthread_mutex_unlock(pthread_mutex_t *mutex);
+
+/* mutex attribute functions */
+extern int pthread_mutexattr_destroy(pthread_mutexattr_t *mutexAttr);
+extern int pthread_mutexattr_getprioceiling(pthread_mutexattr_t *mutexAttr, int *_priorityCeiling);
+extern int pthread_mutexattr_getprotocol(pthread_mutexattr_t *mutexAttr, int *_protocol);
+extern int pthread_mutexattr_getpshared(pthread_mutexattr_t *mutexAttr, int *_processShared);
+extern int pthread_mutexattr_gettype(pthread_mutexattr_t *mutexAttr, int *_type);
+extern int pthread_mutexattr_init(pthread_mutexattr_t *mutexAttr);
+extern int pthread_mutexattr_setprioceiling(pthread_mutexattr_t *mutexAttr, int priorityCeiling);
+extern int pthread_mutexattr_setprotocol(pthread_mutexattr_t *mutexAttr, int protocol);
+extern int pthread_mutexattr_setpshared(pthread_mutexattr_t *mutexAttr, int processShared);
+extern int pthread_mutexattr_settype(pthread_mutexattr_t *mutexAttr, int type);
+
+#endif	/* _PTHREAD_ */