--- /dev/null
+++ Libc/Libc-262/sys/sigsuspend.c
@@ -0,0 +1,41 @@
+/*
+ * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
+ *
+ * @APPLE_LICENSE_HEADER_START@
+ * 
+ * The contents of this file constitute Original Code as defined in and
+ * are subject to the Apple Public Source License Version 1.1 (the
+ * "License").  You may not use this file except in compliance with the
+ * License.  Please obtain a copy of the License at
+ * http://www.apple.com/publicsource and read it before using this file.
+ * 
+ * This Original Code and all software distributed under the License are
+ * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+ * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
+ * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
+ * License for the specific language governing rights and limitations
+ * under the License.
+ * 
+ * @APPLE_LICENSE_HEADER_END@
+ */
+/*	@(#)sigsuspend.c	1.0	9/22/95	(c) 1995 NeXT	*/
+
+#include <sys/signal.h>
+#include <sys/syscall.h>
+#include <unistd.h>
+
+int
+sigsuspend (
+            const sigset_t *sigmask_p
+)
+{
+    sigset_t	mask;
+    
+    if (sigmask_p)
+        mask = *sigmask_p;
+    else
+        sigemptyset(&mask);
+    return syscall (SYS_sigsuspend, mask);
+}
+