optimize compound-literal sigset_t's not to contain useless hurd bits

src/internal/pthread_impl.h

@@ -79,8 +79,10 @@ struct __timer {
 #define SIGCANCEL 33
 #define SIGSYSCALL 34
 
-#define SIGPT_SET ((sigset_t){{[sizeof(long)==4] = 3<<(32*(sizeof(long)>4))}})
-#define SIGTIMER_SET ((sigset_t){{ 0x80000000 }})
+#define SIGPT_SET ((sigset_t *)(unsigned long [1+(sizeof(long)==4)]){ \
+	[sizeof(long)==4] = 3<<(32*(sizeof(long)>4)) })
+#define SIGTIMER_SET ((sigset_t *)(unsigned long [1+(sizeof(long)==4)]){ \
+	 0x80000000 })
 
 int __set_thread_area(void *);
 int __libc_sigaction(int, const struct sigaction *, struct sigaction *);

src/thread/pthread_create.c

@@ -45,7 +45,7 @@ static int start(void *p)
 {
 	struct pthread *self = p;
 	if (self->unblock_cancel)
-		__syscall(SYS_rt_sigprocmask, SIG_UNBLOCK, &SIGPT_SET, 0, 8);
+		__syscall(SYS_rt_sigprocmask, SIG_UNBLOCK, SIGPT_SET, 0, 8);
 	pthread_exit(self->start(self->start_arg));
 	return 0;
 }
@@ -68,7 +68,7 @@ int pthread_create(pthread_t *res, const pthread_attr_t *attr, void *(*entry)(vo
 
 	if (!self) return ENOSYS;
 	if (!libc.threaded) {
-		__syscall(SYS_rt_sigprocmask, SIG_UNBLOCK, &SIGPT_SET, 0, 8);
+		__syscall(SYS_rt_sigprocmask, SIG_UNBLOCK, SIGPT_SET, 0, 8);
 		libc.threaded = 1;
 	}
 

src/time/timer_create.c

@@ -51,7 +51,7 @@ static void install_handler()
 		.sa_flags = SA_SIGINFO | SA_RESTART
 	};
 	__libc_sigaction(SIGTIMER, &sa, 0);
-	__syscall(SYS_rt_sigprocmask, SIG_UNBLOCK, &SIGTIMER_SET, 0, 8);
+	__syscall(SYS_rt_sigprocmask, SIG_UNBLOCK, SIGTIMER_SET, 0, 8);
 }
 
 static void *start(void *arg)