From b91fb6a424a208c0982e7bbb7fe2eff5cc7ee6fc Mon Sep 17 00:00:00 2001
From: bol-van <none@none.none>
Date: Sun, 30 Nov 2025 15:39:18 +0300
Subject: [PATCH] nfqws2: lexra compile fix

---
 nfq2/lua.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/nfq2/lua.c b/nfq2/lua.c
index 2b19788..8bd98f7 100644
--- a/nfq2/lua.c
+++ b/nfq2/lua.c
@@ -203,7 +203,8 @@ static int luacall_swap16(lua_State *L)
 	lua_Integer i = luaL_checkinteger(L,1);
 	if (i>0xFFFF || i<-(lua_Integer)0xFFFF) luaL_error(L, "out of range");
 	uint16_t u = (uint16_t)i;
-	lua_pushinteger(L,__builtin_bswap16(u));
+	// __builtin_bswap16 is absent in ancient lexra gcc 4.6
+	lua_pushinteger(L,(u>>8) | ((u&0xFF)<<8));
 	return 1;
 }
 static int luacall_swap32(lua_State *L)