Make mysqli compilable in a 5_2 environment. Some want to use mysqlnd+mysqli

with 5_2. This won't hurt 5_2 in any way. Won't be MFB-ed because HEAD is
completely different.

ext/mysqli/mysqli.c

@@ -512,6 +512,7 @@ static int mysqli_object_has_property(zval *object, zval *member, int has_set_ex
 } /* }}} */
 
 
+#if PHP_MAJOR_VERSION == 5 && PHP_MINOR_VERSION >= 3
 HashTable * mysqli_object_get_debug_info(zval *object, int *is_temp TSRMLS_DC)
 {
 	mysqli_object *obj = (mysqli_object *)zend_objects_get_address(object TSRMLS_CC);
@@ -539,7 +540,7 @@ HashTable * mysqli_object_get_debug_info(zval *object, int *is_temp TSRMLS_DC)
 	*is_temp = 1;
 	return retval;
 }
-
+#endif
 
 /* {{{ mysqli_objects_new
  */
@@ -708,7 +709,9 @@ PHP_MINIT_FUNCTION(mysqli)
 	mysqli_object_handlers.get_property_ptr_ptr = std_hnd->get_property_ptr_ptr;
 	mysqli_object_handlers.get_constructor = php_mysqli_constructor_get;
 	mysqli_object_handlers.has_property = mysqli_object_has_property;
+#if PHP_MAJOR_VERSION == 5 && PHP_MINOR_VERSION >= 3
 	mysqli_object_handlers.get_debug_info = mysqli_object_get_debug_info;
+#endif
 
 	zend_hash_init(&classes, 0, NULL, NULL, 1);
 

ext/mysqli/mysqli_nonapi.c

@@ -33,6 +33,11 @@
 
 #define SAFE_STR(a) ((a)?a:"")
 
+#ifndef zend_parse_parameters_none
+#define zend_parse_parameters_none()	\
+        zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "")
+#endif
+
 /* {{{ php_mysqli_set_error
  */
 static void php_mysqli_set_error(long mysql_errno, char *mysql_err TSRMLS_DC)