--- Libc/Libc-1725.40.4/include/string.h
+++ Libc/Libc-391.4.3/include/string.h
@@ -1,15 +1,15 @@
 /*
- * Copyright (c) 2000, 2007, 2010, 2023 Apple Inc. All rights reserved.
+ * 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,
@@ -17,7 +17,7 @@
  * 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@
  */
 /*-
@@ -55,8 +55,86 @@
  *	@(#)string.h	8.1 (Berkeley) 6/2/93
  */
 
-#include <_string.h>
+#ifndef _STRING_H_
+#define	_STRING_H_
+#include <_types.h>
+
+#ifndef	_SIZE_T
+#define	_SIZE_T
+typedef	__darwin_size_t		size_t;
+#endif
+
+#ifndef _POSIX_C_SOURCE		/* For swab */
+#ifndef _SSIZE_T
+#define _SSIZE_T
+typedef __darwin_ssize_t	ssize_t;
+#endif
+#endif /* ! _POSIX_C_SOURCE */
+
+#ifndef NULL
+#define NULL __DARWIN_NULL
+#endif /* ! NULL */
+
+#include <sys/cdefs.h>
+
+__BEGIN_DECLS
+void	*memchr(const void *, int, size_t);
+int	 memcmp(const void *, const void *, size_t);
+void	*memcpy(void *, const void *, size_t);
+void	*memmove(void *, const void *, size_t);
+void	*memset(void *, int, size_t);
+#ifndef _POSIX_C_SOURCE
+char	*stpcpy(char *, const char *);
+char	*strcasestr(const char *, const char *);
+#endif	/* !_POSIX_C_SOURCE */
+char	*strcat(char *, const char *);
+char	*strchr(const char *, int);
+int	 strcmp(const char *, const char *);
+int	 strcoll(const char *, const char *);
+char	*strcpy(char *, const char *);
+size_t	 strcspn(const char *, const char *);
+char	*strerror(int);
+int	 strerror_r(int, char *, size_t);
+size_t	 strlen(const char *);
+char	*strncat(char *, const char *, size_t);
+int	 strncmp(const char *, const char *, size_t);
+char	*strncpy(char *, const char *, size_t);
+#ifndef _POSIX_C_SOURCE
+char	*strnstr(const char *, const char *, size_t);
+#endif	/* !_POSIX_C_SOURCE */
+char	*strpbrk(const char *, const char *);
+char	*strrchr(const char *, int);
+size_t	 strspn(const char *, const char *);
+char	*strstr(const char *, const char *);
+char	*strtok(char *, const char *);
+size_t	 strxfrm(char *, const char *, size_t);
+
+/* Nonstandard routines */
+#ifndef _ANSI_SOURCE
+void	*memccpy(void *, const void *, int, size_t);
+char	*strtok_r(char *, const char *, char **);
+char	*strdup(const char *);
+#ifndef _POSIX_C_SOURCE
+int	 bcmp(const void *, const void *, size_t);
+void	 bcopy(const void *, void *, size_t);
+void	 bzero(void *, size_t);
+int	 ffs(int);
+char	*index(const char *, int);
+char	*rindex(const char *, int);
+int	 strcasecmp(const char *, const char *);
+size_t	 strlcat(char *, const char *, size_t);
+size_t	 strlcpy(char *, const char *, size_t);
+void	 strmode(int, char *);
+int	 strncasecmp(const char *, const char *, size_t);
+char	*strsep(char **, const char *);
+char	*strsignal(int sig);
+void	 swab(const void * __restrict, void * __restrict, ssize_t);
+#endif	/* !_POSIX_C_SOURCE */
+#endif 	/* !_ANSI_SOURCE */
+__END_DECLS
 
 #ifdef _USE_EXTENDED_LOCALES_
 #include <xlocale/_string.h>
 #endif /* _USE_EXTENDED_LOCALES_ */
+
+#endif /* _STRING_H_ */