[newlib-cygwin] Correct prototypes of pthread_mutex_getprioceiling() and pthread_setschedparam()

[newlib-cygwin] Correct prototypes of pthread_mutex_getprioceiling() and pthread_setschedparam()

[Joel Sherrill]

https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=948db3e4b7772d37f1eeeb28484282a435fdb30c

commit 948db3e4b7772d37f1eeeb28484282a435fdb30c
Author: Joel Sherrill <joel@rtems.org>
Date:   Wed Mar 14 17:49:29 2018 -0500

    Correct prototypes of pthread_mutex_getprioceiling() and pthread_setschedparam()

Diff:
---
 newlib/libc/include/pthread.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/newlib/libc/include/pthread.h b/newlib/libc/include/pthread.h
index 3dee1c9..c9d24d6 100644
--- a/newlib/libc/include/pthread.h
+++ b/newlib/libc/include/pthread.h
@@ -156,7 +156,7 @@ int	pthread_attr_getschedparam (const pthread_attr_t *__attr,
 int	pthread_getschedparam (pthread_t __pthread, int *__policy,
 			       struct sched_param *__param);
 int	pthread_setschedparam (pthread_t __pthread, int __policy,
-			       struct sched_param *__param);
+			       const struct sched_param *__param);
 
 /* Set Scheduling Priority of a Thread */
 int	pthread_setschedprio (pthread_t thread, int prio);
@@ -190,7 +190,7 @@ int	pthread_mutexattr_getprioceiling (const pthread_mutexattr_t *__attr,
 
 int	pthread_mutex_setprioceiling (pthread_mutex_t *__mutex,
 				      int __prioceiling, int *__old_ceiling);
-int	pthread_mutex_getprioceiling (pthread_mutex_t *__mutex,
+int	pthread_mutex_getprioceiling (const pthread_mutex_t *__restrict __mutex,
 				      int *__prioceiling);
 
 #endif /* _POSIX_THREAD_PRIO_PROTECT */