pthread-mutex: New module.

* lib/pthread.in.h (pthread_mutexattr_destroy, pthread_mutexattr_init,
pthread_mutexattr_settype, pthread_mutex_destroy, pthread_mutex_init,
pthread_mutex_lock, pthread_mutex_trylock, pthread_mutex_timedlock,
pthread_mutex_unlock): Remove inline definitions.
* lib/pthread-mutex.c: New file.
* m4/pthread-mutex.m4: New file.
* modules/pthread-mutex: New file.
* doc/posix-functions/pthread_mutex_init.texi: Mention the new module.
* doc/posix-functions/pthread_mutexattr_init.texi: Likewise.
* doc/posix-functions/pthread_mutexattr_gettype.texi: Likewise.
* doc/posix-functions/pthread_mutexattr_settype.texi: Likewise.
* doc/posix-functions/pthread_mutexattr_getrobust.texi: Likewise.
* doc/posix-functions/pthread_mutexattr_setrobust.texi: Likewise.
* doc/posix-functions/pthread_mutexattr_destroy.texi: Likewise.
* doc/posix-functions/pthread_mutex_lock.texi: Likewise.
* doc/posix-functions/pthread_mutex_trylock.texi: Likewise.
* doc/posix-functions/pthread_mutex_timedlock.texi: Likewise.
* doc/posix-functions/pthread_mutex_unlock.texi: Likewise.
* doc/posix-functions/pthread_mutex_destroy.texi: Likewise.

modules/pthread-mutex

@@ -0,0 +1,33 @@
+Description:
+POSIX mutexes (locks).
+
+Files:
+lib/pthread-mutex.c
+m4/pthread-mutex.m4
+
+Depends-on:
+pthread-h
+pthread_mutex_timedlock [test $gl_threads_api = posix]
+windows-timedmutex      [test $gl_threads_api = windows]
+windows-timedrecmutex   [test $gl_threads_api = windows]
+
+configure.ac:
+gl_PTHREAD_MUTEX
+if test $HAVE_PTHREAD_MUTEX_INIT = 0 || test $REPLACE_PTHREAD_MUTEX_INIT = 1; then
+  AC_LIBOBJ([pthread-mutex])
+fi
+gl_PTHREAD_MODULE_INDICATOR([pthread-mutex])
+
+Makefile.am:
+
+Include:
+<pthread.h>
+
+Link:
+$(LIBTHREAD) or $(LIBMULTITHREAD)
+
+License:
+LGPLv2+
+
+Maintainer:
+all