MFB: Fixed compiler warnings and enable Json by default.

ext/json/JSON_parser.h

@@ -3,6 +3,4 @@
 #include "php.h"
 #include "ext/standard/php_smart_str.h"
 
-static char digits[] = "0123456789abcdef";
-
 extern int JSON_parser(zval *z, unsigned short p[], int length, int assoc TSRMLS_DC);

ext/json/config.m4

@@ -70,8 +70,8 @@ dnl
 dnl Main config
 dnl
 
-PHP_ARG_WITH(json, whether to enable JavaScript Object Serialization support,
-[  --with-json       Enable JavaScript Object Serialization support])
+PHP_ARG_ENABLE(json, whether to enable JavaScript Object Serialization support,
+[  --disable-json       Disable JavaScript Object Serialization support], yes)
 
 if test "$PHP_JSON" != "no"; then  
   AC_DEFINE([HAVE_JSON],1,[whether to have JavaScript Object Serialization support])

ext/json/json.c

@@ -33,9 +33,7 @@
 /* If you declare any globals in php_json.h uncomment this:
 ZEND_DECLARE_MODULE_GLOBALS(json)
 */
-
-/* True global resources - no need for thread safety here */
-static int le_json;
+static char digits[] = "0123456789abcdef";
 
 /* {{{ json_functions[]
  *