diff --git a/components/pthreads/SConscript b/components/pthreads/SConscript
index 5f017aea1791086a197c269d29f2be3786a6f9b3..9fe796d225234dc30451c76f8386dbcddabb4cc9 100644
--- a/components/pthreads/SConscript
+++ b/components/pthreads/SConscript
@@ -1,20 +1,7 @@
 Import('RTT_ROOT')
 from building import *
 
-src	= Split('''
-clock_time.c
-pthread.c
-pthread_attr.c
-pthread_barrier.c
-pthread_cond.c
-pthread_internal.c
-pthread_mutex.c
-pthread_rwlock.c
-pthread_spin.c
-pthread_tls.c
-sched.c
-semaphore.c
-''')
+src	= Glob('*.c')
 CPPPATH = [RTT_ROOT + '/components/pthreads']
 group = DefineGroup('pthreads', src, depend = ['RT_USING_PTHREADS'], CPPPATH = CPPPATH)
 
diff --git a/components/pthreads/clock_time.c b/components/pthreads/clock_time.c
deleted file mode 100644
index 4884d07fb8a8271f5420f32495105ecd663294bd..0000000000000000000000000000000000000000
--- a/components/pthreads/clock_time.c
+++ /dev/null
@@ -1,27 +0,0 @@
-#include <rtthread.h>
-#include "pthread_internal.h"
-#include <time.h>
-
-int clock_getres(clockid_t clock_id, struct timespec *res)
-{
-	if ((clock_id != CLOCK_REALTIME) || (res == RT_NULL))
-	{
-		rt_set_errno(EINVAL);
-		return -1;
-	}
-
-	res->tv_sec  = 0;
-	res->tv_nsec = NSEC_PER_TICK;
-
-	return 0;
-}
-
-int clock_gettime(clockid_t clock_id, struct timespec *tp)
-{
-	return 0;
-}
-
-int clock_settime(clockid_t clock_id, const struct timespec *tp)
-{
-	return 0;
-}
diff --git a/components/pthreads/mqueue.c b/components/pthreads/mqueue.c
index 849f5348ecf7c450da34f7233bb09a922ccabd9e..a3cc2c7c73612dff78e434a5fa41120f45b48bb3 100644
--- a/components/pthreads/mqueue.c
+++ b/components/pthreads/mqueue.c
@@ -1,7 +1,10 @@
 #include "mqueue.h"
-#include <stdargs.h>
 #include "pthread_internal.h"
 
+#include <stdarg.h>
+#include <errno.h>
+#include <sys/fcntl.h>
+
 int mq_setattr(mqd_t mqdes, const struct mq_attr *mqstat,
 		struct mq_attr *omqstat)
 {
@@ -103,13 +106,13 @@ ssize_t mq_timedreceive(mqd_t mqdes, char *msg_ptr, size_t msg_len,
 		rt_set_errno(EINVAL);
 		return -1;
 	}
-	tick = time_to_tick(abs_timeout);
+	tick = libc_time_to_tick(abs_timeout);
 
 	result = rt_mq_recv(mqdes, msg_ptr, msg_len, tick);
 	if (result == RT_EOK) return msg_len;
 
 	if (result == -RT_ETIMEOUT)
-		rt_set_errno(ETIMEOUT);
+		rt_set_errno(ETIMEDOUT);
 	else
 		rt_set_errno(EBADMSG);
 
@@ -125,7 +128,7 @@ int mq_timedsend(mqd_t mqdes, const char *msg_ptr, size_t msg_len, unsigned msg_
 
 int mq_notify(mqd_t mqdes, const struct sigevent *notification)
 {
-	rt_set_errno(-RT_ERROT);
+	rt_set_errno(-RT_ERROR);
 	return -1;
 }
 
@@ -145,6 +148,7 @@ int mq_unlink(const char *name)
 		return -1;
 	}
 
+	/* delete this message queue */
 	rt_mq_delete(mq);
 	return 0;
 }
diff --git a/components/pthreads/mqueue.h b/components/pthreads/mqueue.h
index 901b1bed5974bae3a22efb69694474b5980c857c..80df241d85eaa7f00b009fe7eb367aea3788f87c 100644
--- a/components/pthreads/mqueue.h
+++ b/components/pthreads/mqueue.h
@@ -4,7 +4,8 @@
 #include <rtthread.h>
 #include <sys/types.h>
 #include <sys/time.h>
-#include <signal.h>
+#include <sys/signal.h>
+#include <pthread.h>
 
 typedef rt_mq_t mqd_t;
 struct mq_attr
diff --git a/components/pthreads/pthread.h b/components/pthreads/pthread.h
index 9eb6c828f89f515e1fbd36e75f217d0deed43c7b..f548aef0b9eaacabad90f8cae8dacc5103397f7b 100644
--- a/components/pthreads/pthread.h
+++ b/components/pthreads/pthread.h
@@ -237,5 +237,22 @@ int pthread_barrier_init(pthread_barrier_t *barrier,
 
 int pthread_barrier_wait(pthread_barrier_t *barrier);
 
+/*  Signal Generation and Delivery, P1003.1b-1993, p. 63
+    NOTE: P1003.1c/D10, p. 34 adds sigev_notify_function and
+          sigev_notify_attributes to the sigevent structure.  */
+union sigval {
+  int    sival_int;    /* Integer signal value */
+  void  *sival_ptr;    /* Pointer signal value */
+};
+
+struct sigevent {
+  int              sigev_notify;               /* Notification type */
+  int              sigev_signo;                /* Signal number */
+  union sigval     sigev_value;                /* Signal value */
+  void           (*sigev_notify_function)( union sigval );
+                                               /* Notification function */
+  pthread_attr_t  *sigev_notify_attributes;    /* Notification Attributes */
+};
+
 #endif
 
diff --git a/components/pthreads/pthread_cond.c b/components/pthreads/pthread_cond.c
index d737955dbefe411ca4d99bc2d03aee3a9a3d964e..235b35c316303d7261cd049a2e1212b0f30f47e0 100644
--- a/components/pthreads/pthread_cond.c
+++ b/components/pthreads/pthread_cond.c
@@ -166,11 +166,10 @@ int pthread_cond_timedwait(pthread_cond_t *cond,
 	pthread_mutex_t * mutex,
 	const struct timespec *abstime)
 {
-	rt_int32_t timeout;
+	int timeout;
 	rt_err_t result;
 
-	timeout = abstime->tv_sec * RT_TICK_PER_SECOND +
-			abstime->tv_nsec * RT_TICK_PER_SECOND/1000000000;
+	timeout = libc_time_to_tick(abstime);
 	result = _pthread_cond_timedwait(cond, mutex, timeout);
 	if (result == RT_EOK) return 0;
 	if (result == -RT_ETIMEOUT) return ETIMEDOUT;
diff --git a/components/pthreads/pthread_internal.h b/components/pthreads/pthread_internal.h
index 47c745e69e4d7f618fecd5fd61167c97d290a7c8..cc0b512ac0e95b8f59f6f19dbcefce0b6812f132 100644
--- a/components/pthreads/pthread_internal.h
+++ b/components/pthreads/pthread_internal.h
@@ -53,6 +53,6 @@ rt_inline _pthread_data_t* _pthread_get_data(pthread_t thread)
 	return (_pthread_data_t*)thread->user_data;
 }
 
-#define NSEC_PER_TICK	(1000000000UL/RT_TICK_PER_SECOND)
+extern int libc_time_to_tick(const struct timespec *time);
 
 #endif
diff --git a/components/pthreads/semaphore.c b/components/pthreads/semaphore.c
index f80e0f8ec640d897004033a07ae700102a0f0ff5..214f66b42f6b67c0d0d66d44d1441dd8db149e14 100644
--- a/components/pthreads/semaphore.c
+++ b/components/pthreads/semaphore.c
@@ -93,7 +93,7 @@ int sem_timedwait(sem_t *sem, const struct timespec *abs_timeout)
 	if (!sem || !abs_timeout) return EINVAL;
 
 	/* calculate os tick */
-	tick = abs_timeout->tv_sec/RT_TICK_PER_SECOND + (abs_timeout->tv_nsec/1000) * (1000/RT_TICK_PER_SECOND);
+	tick = libc_time_to_tick(abs_timeout);
 	
 	result = rt_sem_take(sem, tick);
 	if (result == -RT_ETIMEOUT) return ETIMEDOUT;