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diff --git a/lib/libthr/thread/thr_mutexattr.c b/lib/libthr/thread/thr_mutexattr.c
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+/*
+ * Copyright (c) 1996 Jeffrey Hsu <hsu@freebsd.org>.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by John Birrell.
+ * 4. Neither the name of the author nor the names of any co-contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * $FreeBSD$
+ */
+
+/*
+ * Copyright (c) 1997 John Birrell <jb@cimlogic.com.au>.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by John Birrell.
+ * 4. Neither the name of the author nor the names of any co-contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ */
+
+#include "namespace.h"
+#include <string.h>
+#include <stdlib.h>
+#include <errno.h>
+#include <pthread.h>
+#include <pthread_np.h>
+#include "un-namespace.h"
+
+#include "thr_private.h"
+
+__weak_reference(_pthread_mutexattr_init, pthread_mutexattr_init);
+__weak_reference(_pthread_mutexattr_setkind_np, pthread_mutexattr_setkind_np);
+__weak_reference(_pthread_mutexattr_getkind_np, pthread_mutexattr_getkind_np);
+__weak_reference(_pthread_mutexattr_gettype, pthread_mutexattr_gettype);
+__weak_reference(_pthread_mutexattr_settype, pthread_mutexattr_settype);
+__weak_reference(_pthread_mutexattr_destroy, pthread_mutexattr_destroy);
+__weak_reference(_pthread_mutexattr_getpshared, pthread_mutexattr_getpshared);
+__weak_reference(_pthread_mutexattr_setpshared, pthread_mutexattr_setpshared);
+__weak_reference(_pthread_mutexattr_getprotocol, pthread_mutexattr_getprotocol);
+__weak_reference(_pthread_mutexattr_setprotocol, pthread_mutexattr_setprotocol);
+__weak_reference(_pthread_mutexattr_getprioceiling, pthread_mutexattr_getprioceiling);
+__weak_reference(_pthread_mutexattr_setprioceiling, pthread_mutexattr_setprioceiling);
+
+int
+_pthread_mutexattr_init(pthread_mutexattr_t *attr)
+{
+ int ret;
+ pthread_mutexattr_t pattr;
+
+ if ((pattr = (pthread_mutexattr_t)
+ malloc(sizeof(struct pthread_mutex_attr))) == NULL) {
+ ret = ENOMEM;
+ } else {
+ memcpy(pattr, &_pthread_mutexattr_default,
+ sizeof(struct pthread_mutex_attr));
+ *attr = pattr;
+ ret = 0;
+ }
+ return (ret);
+}
+
+int
+_pthread_mutexattr_setkind_np(pthread_mutexattr_t *attr, int kind)
+{
+ int ret;
+ if (attr == NULL || *attr == NULL) {
+ errno = EINVAL;
+ ret = -1;
+ } else {
+ (*attr)->m_type = kind;
+ ret = 0;
+ }
+ return(ret);
+}
+
+int
+_pthread_mutexattr_getkind_np(pthread_mutexattr_t attr)
+{
+ int ret;
+ if (attr == NULL) {
+ errno = EINVAL;
+ ret = -1;
+ } else {
+ ret = attr->m_type;
+ }
+ return(ret);
+}
+
+int
+_pthread_mutexattr_settype(pthread_mutexattr_t *attr, int type)
+{
+ int ret;
+ if (attr == NULL || *attr == NULL || type >= PTHREAD_MUTEX_TYPE_MAX) {
+ errno = EINVAL;
+ ret = -1;
+ } else {
+ (*attr)->m_type = type;
+ ret = 0;
+ }
+ return(ret);
+}
+
+int
+_pthread_mutexattr_gettype(pthread_mutexattr_t *attr, int *type)
+{
+ int ret;
+
+ if (attr == NULL || *attr == NULL || (*attr)->m_type >=
+ PTHREAD_MUTEX_TYPE_MAX) {
+ ret = EINVAL;
+ } else {
+ *type = (*attr)->m_type;
+ ret = 0;
+ }
+ return ret;
+}
+
+int
+_pthread_mutexattr_destroy(pthread_mutexattr_t *attr)
+{
+ int ret;
+ if (attr == NULL || *attr == NULL) {
+ ret = EINVAL;
+ } else {
+ free(*attr);
+ *attr = NULL;
+ ret = 0;
+ }
+ return(ret);
+}
+
+int
+_pthread_mutexattr_getpshared(const pthread_mutexattr_t *attr,
+ int *pshared)
+{
+
+ if (attr == NULL || *attr == NULL)
+ return (EINVAL);
+
+ *pshared = PTHREAD_PROCESS_PRIVATE;
+ return (0);
+}
+
+int
+_pthread_mutexattr_setpshared(pthread_mutexattr_t *attr, int pshared)
+{
+
+ if (attr == NULL || *attr == NULL)
+ return (EINVAL);
+
+ /* Only PTHREAD_PROCESS_PRIVATE is supported. */
+ if (pshared != PTHREAD_PROCESS_PRIVATE)
+ return (EINVAL);
+
+ return (0);
+}
+
+int
+_pthread_mutexattr_getprotocol(pthread_mutexattr_t *mattr, int *protocol)
+{
+ int ret = 0;
+
+ if ((mattr == NULL) || (*mattr == NULL))
+ ret = EINVAL;
+ else
+ *protocol = (*mattr)->m_protocol;
+
+ return(ret);
+}
+
+int
+_pthread_mutexattr_setprotocol(pthread_mutexattr_t *mattr, int protocol)
+{
+ int ret = 0;
+
+ if ((mattr == NULL) || (*mattr == NULL) ||
+ (protocol < PTHREAD_PRIO_NONE) || (protocol > PTHREAD_PRIO_PROTECT))
+ ret = EINVAL;
+ else {
+ (*mattr)->m_protocol = protocol;
+ (*mattr)->m_ceiling = THR_MAX_RR_PRIORITY;
+ }
+ return(ret);
+}
+
+int
+_pthread_mutexattr_getprioceiling(pthread_mutexattr_t *mattr, int *prioceiling)
+{
+ int ret = 0;
+
+ if ((mattr == NULL) || (*mattr == NULL))
+ ret = EINVAL;
+ else if ((*mattr)->m_protocol != PTHREAD_PRIO_PROTECT)
+ ret = EINVAL;
+ else
+ *prioceiling = (*mattr)->m_ceiling;
+
+ return(ret);
+}
+
+int
+_pthread_mutexattr_setprioceiling(pthread_mutexattr_t *mattr, int prioceiling)
+{
+ int ret = 0;
+
+ if ((mattr == NULL) || (*mattr == NULL))
+ ret = EINVAL;
+ else if ((*mattr)->m_protocol != PTHREAD_PRIO_PROTECT)
+ ret = EINVAL;
+ else
+ (*mattr)->m_ceiling = prioceiling;
+
+ return(ret);
+}
+
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