Allow future extensibility without binary compatibility break

diff --git a/Zend/zend_alloc.h b/Zend/zend_alloc.h
index 70670d1f1717c6eb2fabeb4ac4853b8baa9842ed..9be4342348664c9ebdcd45d71e5ac43b54b0882c 100644 (file)
--- a/Zend/zend_alloc.h
+++ b/Zend/zend_alloc.h
@@ -194,6 +194,7 @@ typedef struct _zend_mm_mem_handlers {
 
 struct _zend_mm_storage {
        const zend_mm_mem_handlers *handlers;
+       void *data;
 };
 
 ZEND_API zend_mm_heap *zend_mm_startup_ex(const zend_mm_mem_handlers *handlers, size_t block_size, void *params);