* configure.in: Remove PTH_ALLOW.

* cygwin.din: Remove @PTH_ALLOW@ prefixes to pthread functions.
	Add new pthread exports.
	* pthread.cc: New wrapper functions for the above new exports.
	* sched.cc (valid_sched_parameters): New function.
	(sched_setparam): Use it.
	(sched_set_thread_priority): New function. Used by pthread_sched*.
	* thread.cc (pthread_key_destructor::InsertAfter): New function.
	(pthread_key_destructor::UnlinkNext): New function.
	(pthread_key_destructor::Next): New function.
	(pthread_key_destructor_list::Insert): New function.
	(pthread_key_destructor_list::Remove): New function.
	(pthread_key_destructor_list::Pop): New function.
	(pthread_key_destructor::pthread_key_destructor): New function.
	(pthread_key_destructor_list::IterateNull): New function.
	(MTinterface::Init): Initialise new member.
	(pthread::pthread): Initialise new members.
	(pthread::create): Copy new attributes. Set the new thread priority.
	(pthread_attr::pthread_attr): Initialise new members.
	(pthread_key::pthread_key): Setup destructor function.
	(pthread_key::~pthread_key): Remove destructor function.
	(pthread_mutexattr::pthread_mutexattr): New function.
	(pthread_mutexattr::~pthread_mutexattr): New function.
	(__pthread_once): New function.
	(__pthread_cleanup): New function.
	(__pthread_cancel): New function.
	(__pthread_setcancelstate): New function.
	(__pthread_setcanceltype): New function.
	(__pthread_testcancel): New function.
	(__pthread_attr_getinheritsched): New function.
	(__pthread_attr_getschedparam): New function.
	(__pthread_attr_getschedpolicy): New function.
	(__pthread_attr_getscope): New function.
	(__pthread_attr_setinheritsched): New function.
	(__pthread_attr_setschedparam): New function.
	(__pthread_attr_setschedpolicy): New function.
	(__pthread_attr_setscope): New function.
	(__pthread_exit): Call any key destructors on thread exit.
	(__pthread_join): Use the embedded attr values.
	(__pthread_detach): Use the embedded attr values.
	(__pthread_getconcurrency): New function.
	(__pthread_getschedparam): New function.
	(__pthread_key_create): Pass the destructor on object creation.
	(__pthread_key_delete): Correct incorrect prototype.
	(__pthread_setconcurrency): New function.
	(__pthread_setschedparam): New function.
	(__pthread_cond_timedwait): Support static mutex initialisers.
	(__pthread_cond_wait): Ditto.
	(__pthread_mutex_getprioceiling): New function.
	(__pthread_mutex_lock): Support static mutex initialisers.
	(__pthread_mutex_trylock): Ditto.
	(__pthread_mutex_unlock): Ditto.
	(__pthread_mutex_destroy): Ditto.
	(__pthread_mutex_setprioceiling): New function.
	(__pthread_mutexattr_getprotocol): New function.
	(__pthread_mutexattr_getpshared): New function.
	(__pthread_mutexattr_gettype): New function.
	(__pthread_mutexattr_init): New function.
	(__pthread_mutexattr_destroy): New function.
	(__pthread_mutexattr_setprotocol): New function.
	(__pthread_mutexattr_setprioceiling): New function.
	(__pthread_mutexattr_getprioceiling): New function.
	(__pthread_mutexattr_setpshared): New function.
	(__pthread_mutexattr_settype): New function.
	Remove stubs for non MT_SAFE compilation.
	* thread.h: Remove duplicate #defines.
	Add prototypes for new functions in thread.cc.
	(pthread_key_destructor): New class.
	(pthread_key_destructor_list): New class.
	(pthread_attr): Add new members.
	(pthread): Remove members that are duplicated in the pthread_attr class.
	(pthread_mutex_attr): Add new members.
	(pthread_once): New class.
	* include/pthread.h: Add prototypes for new functions exported from cygwin1.dll.
	Remove typedefs.
	* include/sched.h: Add prototypes for new functions in sched.cc.
	* include/cygwin/types.h: Add typedefs from pthread.h

winsup/cygwin/cygwin.din

@@ -498,6 +498,7 @@ memset
 _memset = memset
 mkdir
 _mkdir = mkdir
+mkfifo
 mknod
 _mknod = mknod
 mkstemp
@@ -1075,44 +1076,75 @@ cygwin_attach_handle_to_fd
 cygwin32_attach_handle_to_fd = cygwin_attach_handle_to_fd
 cygwin_internal
 cygwin32_internal = cygwin_internal
-@PTH_ALLOW@pthread_create
-@PTH_ALLOW@pthread_attr_init
-@PTH_ALLOW@pthread_attr_destroy
-@PTH_ALLOW@pthread_attr_setstacksize
-@PTH_ALLOW@pthread_attr_getstacksize
-@PTH_ALLOW@pthread_exit
-@PTH_ALLOW@pthread_join
-@PTH_ALLOW@pthread_detach
-@PTH_ALLOW@pthread_suspend
-@PTH_ALLOW@pthread_continue
-@PTH_ALLOW@pthread_key_create
-@PTH_ALLOW@pthread_key_delete
-@PTH_ALLOW@pthread_setspecific
-@PTH_ALLOW@pthread_getspecific
-@PTH_ALLOW@pthread_kill
-@PTH_ALLOW@pthread_sigmask
-@PTH_ALLOW@pthread_self
-@PTH_ALLOW@pthread_equal
-@PTH_ALLOW@pthread_mutex_init
-@PTH_ALLOW@pthread_mutex_lock
-@PTH_ALLOW@pthread_mutex_trylock
-@PTH_ALLOW@pthread_mutex_unlock
-@PTH_ALLOW@pthread_mutex_destroy
-@PTH_ALLOW@pthread_cond_init
-@PTH_ALLOW@pthread_cond_destroy
-@PTH_ALLOW@pthread_cond_broadcast
-@PTH_ALLOW@pthread_cond_signal
-@PTH_ALLOW@pthread_cond_wait
-@PTH_ALLOW@pthread_cond_timedwait
-@PTH_ALLOW@pthread_condattr_init
-@PTH_ALLOW@pthread_condattr_destroy
-@PTH_ALLOW@pthread_condattr_getpshared
-@PTH_ALLOW@pthread_condattr_setpshared
-@PTH_ALLOW@sem_init
-@PTH_ALLOW@sem_destroy
-@PTH_ALLOW@sem_wait
-@PTH_ALLOW@sem_trywait
-@PTH_ALLOW@sem_post
+pthread_attr_destroy
+pthread_attr_getdetachstate
+pthread_attr_getinheritsched
+pthread_attr_getschedparam
+pthread_attr_getschedpolicy
+pthread_attr_getscope
+pthread_attr_getstacksize
+pthread_attr_init
+pthread_attr_setdetachstate
+pthread_attr_setinheritsched
+pthread_attr_setschedparam
+pthread_attr_setschedpolicy
+pthread_attr_setscope
+pthread_attr_setstacksize
+pthread_cancel
+pthread_cond_broadcast
+pthread_cond_destroy
+pthread_cond_init
+pthread_cond_signal
+pthread_cond_timedwait
+pthread_cond_wait
+pthread_condattr_destroy
+pthread_condattr_getpshared
+pthread_condattr_init
+pthread_condattr_setpshared
+pthread_create
+pthread_detach
+pthread_equal
+pthread_exit
+pthread_getconcurrency
+pthread_getschedparam
+pthread_getspecific
+pthread_join
+pthread_key_create
+pthread_key_delete
+pthread_mutex_destroy
+pthread_mutex_getprioceiling
+pthread_mutex_init
+pthread_mutex_lock
+pthread_mutex_setprioceiling
+pthread_mutex_trylock
+pthread_mutex_unlock
+pthread_mutexattr_destroy
+pthread_mutexattr_getprioceiling
+pthread_mutexattr_getprotocol
+pthread_mutexattr_getpshared
+pthread_mutexattr_gettype
+pthread_mutexattr_init
+pthread_mutexattr_setprioceiling
+pthread_mutexattr_setprotocol
+pthread_mutexattr_setpshared
+pthread_mutexattr_settype
+pthread_once
+pthread_self
+pthread_setcancelstate
+pthread_setcanceltype
+pthread_setconcurrency
+pthread_setschedparam
+pthread_setspecific
+pthread_testcancel
+pthread_suspend
+pthread_continue
+pthread_kill
+pthread_sigmask
+sem_init
+sem_destroy
+sem_wait
+sem_trywait
+sem_post
 sched_get_priority_max
 sched_get_priority_min
 sched_getparam