Allow future extensibility without binary compatibility break

diff --git a/Zend/zend_alloc.h b/Zend/zend_alloc.h
index 1befb7475cb3e7e5313c51acb12822ef3d8ff61c..c251bd0ec425f4231f47bb13b875bd25d831aa26 100644 (file)
--- a/Zend/zend_alloc.h
+++ b/Zend/zend_alloc.h
@@ -205,6 +205,7 @@ 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);