Remove rand_r implementation

We already use our own mt13397 implementation nowadays, so we no
longer need this shim.

Author: nikic

configure.ac

@@ -582,7 +582,6 @@ nl_langinfo \
 poll \
 ptsname \
 putenv \
-rand_r \
 scandir \
 setitimer \
 setenv \

main/php_reentrancy.h

@@ -99,12 +99,6 @@ char *strtok_r(char *s, const char *delim, char **last);
 #endif
 #endif
 
-#if !defined(HAVE_RAND_R)
-PHPAPI int php_rand_r(unsigned int *seed);
-#else
-#define php_rand_r rand_r
-#endif
-
 END_EXTERN_C()
 
 #if !defined(ZTS)

main/reentrancy.c

@@ -207,63 +207,6 @@ void reentrancy_shutdown(void)
 
 #endif
 
-#ifndef HAVE_RAND_R
-
-/*-
- * Copyright (c) 1990, 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.
- *
- * Posix rand_r function added May 1999 by Wes Peters <[email protected]>.
- */
-
-#include <sys/types.h>
-#include <stdlib.h>
-
-static int
-do_rand(unsigned long *ctx)
-{
-	return ((*ctx = *ctx * 1103515245 + 12345) % ((u_long)PHP_RAND_MAX + 1));
-}
-
-
-PHPAPI int
-php_rand_r(unsigned int *ctx)
-{
-	u_long val = (u_long) *ctx;
-	*ctx = do_rand(&val);
-	return (int) *ctx;
-}
-
-#endif
-
 
 #ifndef HAVE_STRTOK_R