From abb3d56a45ea27fff98d9a0f1165a13712518d5b Mon Sep 17 00:00:00 2001
From: Lorenzo Cogotti <lcg@doublefourteen.io>
Date: Mon, 12 Dec 2022 15:47:34 +0100
Subject: [PATCH] [luacompat] luaL_pushfail() was actually introduced with Lua
 5.3.

---
 luacompat.h | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/luacompat.h b/luacompat.h
index d9f8dc9..834a8f6 100644
--- a/luacompat.h
+++ b/luacompat.h
@@ -17,8 +17,6 @@ typedef struct {
     FILE *f;
 } luaL_Stream;
 
-#define luaL_pushfail(L) lua_pushnil(L)
-
 static inline void luaL_requiref(lua_State *L, const char *modname, lua_CFunction openf, int glb)
 {
     lua_pushstring(L, "_LOADED");
@@ -48,4 +46,9 @@ static inline void luaL_requiref(lua_State *L, const char *modname, lua_CFunctio
 }
 
 #endif
+
+#if LUA_VERSION_NUM < 503
+#define luaL_pushfail(L) lua_pushnil(L)
+#endif
+
 #endif