daemon/engine: compat for Lua < 5.2

diff --git a/daemon/engine.c b/daemon/engine.c
index e37648456c3938dfd25fad1eb0739cdd08f5f335..aad178d73ac93a09c5c4a5733b118dfdd25ee1e0 100644 (file)
--- a/daemon/engine.c
+++ b/daemon/engine.c
@@ -27,6 +27,11 @@
 #include "lib/cache.h"
 #include "lib/defines.h"
 
+/** @internal Compatibility wrapper for Lua < 5.2 */
+#if LUA_VERSION_NUM < 502
+#define lua_rawlen(L, obj) lua_objlen((L), (obj))
+#endif
+
 /*
  * Global bindings.
  */