#include <php.h>
#include <ext/standard/php_string.h>
#include <ext/standard/php_smart_str.h>
-#ifdef HAVE_JSON
-#include <ext/json/php_json.h>
+#if PHP_PQ_HAVE_PHP_JSON_H
+#include <php_json.h> /* we've added the include directory to INCLUDES */
#endif
#include <Zend/zend_interfaces.h>