1 files changed, 6 insertions, 0 deletions

diff --git a/src/l52util.h b/src/l52util.h
index 94f1bfa..38a87db 100644
--- a/src/l52util.h
+++ b/src/l52util.h
@@ -11,13 +11,19 @@
 // luaL_setfuncs
 // lua_absindex
 
+#ifndef lua_objlen
 
 #define lua_objlen      lua_rawlen
 
+#endif
+
 int   luaL_typerror (lua_State *L, int narg, const char *tname);
 
+#ifndef luaL_register
+
 void luaL_register (lua_State *L, const char *libname, const luaL_Reg *l);
 
+#endif
 
 #define lutil_require luaL_requiref