1 files changed, 33 insertions, 0 deletions

diff --git a/src/compat.c b/src/compat.c
index c5e29f5..9f36090 100644
--- a/src/compat.c
+++ b/src/compat.c
@@ -4,6 +4,7 @@
  * ###############################################################################################
  */
 #include "compat.h"
+#include "macros_and_utils.h"
 
 /*
 ** Copied from Lua 5.2 loadlib.c
@@ -42,3 +43,35 @@ void luaL_requiref (lua_State *L, const char *modname, lua_CFunction openf, int
 }
 #endif // LUA_VERSION_NUM
 
+#if LUA_VERSION_NUM < 504
+
+void* lua_newuserdatauv( lua_State* L, size_t sz, int nuvalue)
+{
+        ASSERT_L( nuvalue <= 1);
+        return lua_newuserdata( L, sz);
+}
+
+int lua_getiuservalue( lua_State* L, int idx, int n)
+{
+        if( n > 1)
+        {
+                lua_pushnil( L);
+                return LUA_TNONE;
+        }
+        lua_getuservalue( L, idx);
+        return lua_type( L, -1);
+}
+
+int lua_setiuservalue( lua_State* L, int idx, int n)
+{
+        if( n > 1)
+        {
+                lua_pop( L, 1);
+                return 0;
+        }
+        (void) lua_setuservalue( L, idx);
+        return 1; // I guess anything non-0 is ok
+}
+
+#endif // LUA_VERSION_NUM
+