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diff --git a/libgomp/config/posix/lock.c b/libgomp/config/posix/lock.c
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+/* Copyright (C) 2005, 2008, 2009 Free Software Foundation, Inc.
+ Contributed by Richard Henderson <rth@redhat.com>.
+
+ This file is part of the GNU OpenMP Library (libgomp).
+
+ Libgomp is free software; you can redistribute it and/or modify it
+ under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3, or (at your option)
+ any later version.
+
+ Libgomp is distributed in the hope that it will be useful, but WITHOUT ANY
+ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ more details.
+
+ Under Section 7 of GPL version 3, you are granted additional
+ permissions described in the GCC Runtime Library Exception, version
+ 3.1, as published by the Free Software Foundation.
+
+ You should have received a copy of the GNU General Public License and
+ a copy of the GCC Runtime Library Exception along with this program;
+ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+/* This is the default PTHREADS implementation of the public OpenMP
+ locking primitives.
+
+ Because OpenMP uses different entry points for normal and recursive
+ locks, and pthreads uses only one entry point, a system may be able
+ to do better and streamline the locking as well as reduce the size
+ of the types exported. */
+
+/* We need Unix98 extensions to get recursive locks. On Tru64 UNIX V4.0F,
+ the declarations are available without _XOPEN_SOURCE, which actually
+ breaks compilation. */
+#ifndef __osf__
+#define _XOPEN_SOURCE 500
+#endif
+
+#include "libgomp.h"
+
+#ifdef HAVE_BROKEN_POSIX_SEMAPHORES
+void
+gomp_init_lock_30 (omp_lock_t *lock)
+{
+ pthread_mutex_init (lock, NULL);
+}
+
+void
+gomp_destroy_lock_30 (omp_lock_t *lock)
+{
+ pthread_mutex_destroy (lock);
+}
+
+void
+gomp_set_lock_30 (omp_lock_t *lock)
+{
+ pthread_mutex_lock (lock);
+}
+
+void
+gomp_unset_lock_30 (omp_lock_t *lock)
+{
+ pthread_mutex_unlock (lock);
+}
+
+int
+gomp_test_lock_30 (omp_lock_t *lock)
+{
+ return pthread_mutex_trylock (lock) == 0;
+}
+
+void
+gomp_init_nest_lock_30 (omp_nest_lock_t *lock)
+{
+ pthread_mutex_init (&lock->lock, NULL);
+ lock->count = 0;
+ lock->owner = NULL;
+}
+
+void
+gomp_destroy_nest_lock_30 (omp_nest_lock_t *lock)
+{
+ pthread_mutex_destroy (&lock->lock);
+}
+
+void
+gomp_set_nest_lock_30 (omp_nest_lock_t *lock)
+{
+ void *me = gomp_icv (true);
+
+ if (lock->owner != me)
+ {
+ pthread_mutex_lock (&lock->lock);
+ lock->owner = me;
+ }
+ lock->count++;
+}
+
+void
+gomp_unset_nest_lock_30 (omp_nest_lock_t *lock)
+{
+ if (--lock->count == 0)
+ {
+ lock->owner = NULL;
+ pthread_mutex_unlock (&lock->lock);
+ }
+}
+
+int
+gomp_test_nest_lock_30 (omp_nest_lock_t *lock)
+{
+ void *me = gomp_icv (true);
+
+ if (lock->owner != me)
+ {
+ if (pthread_mutex_trylock (&lock->lock) != 0)
+ return 0;
+ lock->owner = me;
+ }
+
+ return ++lock->count;
+}
+
+#else
+
+void
+gomp_init_lock_30 (omp_lock_t *lock)
+{
+ sem_init (lock, 0, 1);
+}
+
+void
+gomp_destroy_lock_30 (omp_lock_t *lock)
+{
+ sem_destroy (lock);
+}
+
+void
+gomp_set_lock_30 (omp_lock_t *lock)
+{
+ while (sem_wait (lock) != 0)
+ ;
+}
+
+void
+gomp_unset_lock_30 (omp_lock_t *lock)
+{
+ sem_post (lock);
+}
+
+int
+gomp_test_lock_30 (omp_lock_t *lock)
+{
+ return sem_trywait (lock) == 0;
+}
+
+void
+gomp_init_nest_lock_30 (omp_nest_lock_t *lock)
+{
+ sem_init (&lock->lock, 0, 1);
+ lock->count = 0;
+ lock->owner = NULL;
+}
+
+void
+gomp_destroy_nest_lock_30 (omp_nest_lock_t *lock)
+{
+ sem_destroy (&lock->lock);
+}
+
+void
+gomp_set_nest_lock_30 (omp_nest_lock_t *lock)
+{
+ void *me = gomp_icv (true);
+
+ if (lock->owner != me)
+ {
+ while (sem_wait (&lock->lock) != 0)
+ ;
+ lock->owner = me;
+ }
+ lock->count++;
+}
+
+void
+gomp_unset_nest_lock_30 (omp_nest_lock_t *lock)
+{
+ if (--lock->count == 0)
+ {
+ lock->owner = NULL;
+ sem_post (&lock->lock);
+ }
+}
+
+int
+gomp_test_nest_lock_30 (omp_nest_lock_t *lock)
+{
+ void *me = gomp_icv (true);
+
+ if (lock->owner != me)
+ {
+ if (sem_trywait (&lock->lock) != 0)
+ return 0;
+ lock->owner = me;
+ }
+
+ return ++lock->count;
+}
+#endif
+
+#ifdef LIBGOMP_GNU_SYMBOL_VERSIONING
+void
+gomp_init_lock_25 (omp_lock_25_t *lock)
+{
+ pthread_mutex_init (lock, NULL);
+}
+
+void
+gomp_destroy_lock_25 (omp_lock_25_t *lock)
+{
+ pthread_mutex_destroy (lock);
+}
+
+void
+gomp_set_lock_25 (omp_lock_25_t *lock)
+{
+ pthread_mutex_lock (lock);
+}
+
+void
+gomp_unset_lock_25 (omp_lock_25_t *lock)
+{
+ pthread_mutex_unlock (lock);
+}
+
+int
+gomp_test_lock_25 (omp_lock_25_t *lock)
+{
+ return pthread_mutex_trylock (lock) == 0;
+}
+
+void
+gomp_init_nest_lock_25 (omp_nest_lock_25_t *lock)
+{
+ pthread_mutexattr_t attr;
+
+ pthread_mutexattr_init (&attr);
+ pthread_mutexattr_settype (&attr, PTHREAD_MUTEX_RECURSIVE);
+ pthread_mutex_init (&lock->lock, &attr);
+ lock->count = 0;
+ pthread_mutexattr_destroy (&attr);
+}
+
+void
+gomp_destroy_nest_lock_25 (omp_nest_lock_25_t *lock)
+{
+ pthread_mutex_destroy (&lock->lock);
+}
+
+void
+gomp_set_nest_lock_25 (omp_nest_lock_25_t *lock)
+{
+ pthread_mutex_lock (&lock->lock);
+ lock->count++;
+}
+
+void
+gomp_unset_nest_lock_25 (omp_nest_lock_25_t *lock)
+{
+ lock->count--;
+ pthread_mutex_unlock (&lock->lock);
+}
+
+int
+gomp_test_nest_lock_25 (omp_nest_lock_25_t *lock)
+{
+ if (pthread_mutex_trylock (&lock->lock) == 0)
+ return ++lock->count;
+ return 0;
+}
+
+omp_lock_symver (omp_init_lock)
+omp_lock_symver (omp_destroy_lock)
+omp_lock_symver (omp_set_lock)
+omp_lock_symver (omp_unset_lock)
+omp_lock_symver (omp_test_lock)
+omp_lock_symver (omp_init_nest_lock)
+omp_lock_symver (omp_destroy_nest_lock)
+omp_lock_symver (omp_set_nest_lock)
+omp_lock_symver (omp_unset_nest_lock)
+omp_lock_symver (omp_test_nest_lock)
+
+#else
+
+ialias (omp_init_lock)
+ialias (omp_init_nest_lock)
+ialias (omp_destroy_lock)
+ialias (omp_destroy_nest_lock)
+ialias (omp_set_lock)
+ialias (omp_set_nest_lock)
+ialias (omp_unset_lock)
+ialias (omp_unset_nest_lock)
+ialias (omp_test_lock)
+ialias (omp_test_nest_lock)
+
+#endif