--- /dev/null
+++ Libc/Libc-391.2.7/include/signal.h
@@ -0,0 +1,121 @@
+/*
+ * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
+ *
+ * @APPLE_LICENSE_HEADER_START@
+ * 
+ * This file contains Original Code and/or Modifications of Original Code
+ * as defined in and that are subject to the Apple Public Source License
+ * Version 2.0 (the 'License'). You may not use this file except in
+ * compliance with the License. Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this
+ * file.
+ * 
+ * The 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, QUIET ENJOYMENT OR NON-INFRINGEMENT.
+ * Please see the License for the specific language governing rights and
+ * limitations under the License.
+ * 
+ * @APPLE_LICENSE_HEADER_END@
+ */
+/*-
+ * Copyright (c) 1991, 1993
+ *	The Regents of the University of California.  All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by the University of
+ *	California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ *    may be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ *	@(#)signal.h	8.3 (Berkeley) 3/30/94
+ */
+
+#ifndef _USER_SIGNAL_H
+#define _USER_SIGNAL_H
+
+#include <_types.h>
+#include <sys/cdefs.h>
+#include <sys/signal.h>
+
+#ifndef _PTHREAD_T
+typedef __darwin_pthread_t	pthread_t;
+#define _PTHREAD_T
+#endif
+
+#if !defined(_ANSI_SOURCE) && !defined(_POSIX_C_SOURCE)
+extern __const char *__const sys_signame[NSIG];
+extern __const char *__const sys_siglist[NSIG];
+#endif
+
+__BEGIN_DECLS
+int	raise(int);
+__END_DECLS
+
+#ifndef	_ANSI_SOURCE
+__BEGIN_DECLS
+void	(*bsd_signal(int, void (*)(int)))(int);
+int	kill(pid_t, int);
+int	killpg(pid_t, int);
+int	pthread_kill(pthread_t, int);
+int	pthread_sigmask(int, const sigset_t *, sigset_t *);
+int	sigaction(int, const struct sigaction * __restrict,
+	    struct sigaction * __restrict);
+int	sigaddset(sigset_t *, int);
+int	sigaltstack(const stack_t * __restrict, stack_t * __restrict);
+int	sigdelset(sigset_t *, int);
+int	sigemptyset(sigset_t *);
+int	sigfillset(sigset_t *);
+int	sighold(int);
+int	sigignore(int);
+int	siginterrupt(int, int);
+int	sigismember(const sigset_t *, int);
+int	sigpause(int);
+int	sigpending(sigset_t *);
+int	sigprocmask(int, const sigset_t * __restrict, sigset_t * __restrict);
+int	sigrelse(int);
+void    (*sigset(int, void (*)(int)))(int); 
+int	sigsuspend(const sigset_t *);
+int	sigwait(const sigset_t * __restrict, int * __restrict);
+#ifndef _POSIX_C_SOURCE
+void	psignal(unsigned int, const char *);
+int	sigblock(int);
+int	sigreturn(struct sigcontext *);
+int	sigsetmask(int);
+int	sigvec(int, struct sigvec *, struct sigvec *);
+#endif	/* !_POSIX_C_SOURCE */
+__END_DECLS
+
+/* List definitions after function declarations, or Reiser cpp gets upset. */
+#define	sigaddset(set, signo)	(*(set) |= 1 << ((signo) - 1), 0)
+#define	sigdelset(set, signo)	(*(set) &= ~(1 << ((signo) - 1)), 0)
+#define	sigemptyset(set)	(*(set) = 0, 0)
+#define	sigfillset(set)		(*(set) = ~(sigset_t)0, 0)
+#define	sigismember(set, signo)	((*(set) & (1 << ((signo) - 1))) != 0)
+#endif	/* !_ANSI_SOURCE */
+
+#endif	/* !_USER_SIGNAL_H */