fix "invalid operands to binary -" error caused by missing stpcpy prototype:

php-5.2.17/Zend/zend_language_parser.c:2581: error: invalid operands to binary -
php-5.2.17/Zend/zend_language_parser.c: In function `yysyntax_error':
php-5.2.17/Zend/zend_language_parser.c:2640: warning: assignment makes pointer from integer without a cast
php-5.2.17/Zend/zend_language_parser.c:2656: warning: assignment makes pointer from integer without a cast
make: *** [Zend/zend_language_parser.lo] Error 1

http://llvm.org/bugs/show_bug.cgi?id=3443
http://news.php.net/php.zend-engine.cvs/7639
http://svn.php.net/viewvc?view=revision&revision=281516

--- php/php-src/branches/PHP_5_3/Zend/zend.h	2009/06/01 17:35:12	281515
+++ php/php-src/branches/PHP_5_3/Zend/zend.h	2009/06/01 17:51:53	281516
@@ -34,8 +34,6 @@
 #define END_EXTERN_C()
 #endif
 
-#include <stdio.h>
-
 /*
  * general definitions
  */
@@ -66,6 +64,8 @@
 #endif
 
 /* all HAVE_XXX test have to be after the include of zend_config above */
+
+#include <stdio.h>
 
 #ifdef HAVE_UNIX_H
 # include <unix.h>