From ef3008bb372af09f87d6685ea7ce46a177a61362 Mon Sep 17 00:00:00 2001
From: Raphael Coeffic <raphaelcoeffic@users.noreply.github.com>
Date: Mon, 27 Apr 2026 02:01:27 +0200
Subject: [PATCH] fix(lua): pack TValue and TKey structs to reduce RAM usage
 (#7289)

---
 radio/src/thirdparty/Lua/src/lobject.h | 18 ++++++++----------
 1 file changed, 8 insertions(+), 10 deletions(-)

diff --git a/radio/src/thirdparty/Lua/src/lobject.h b/radio/src/thirdparty/Lua/src/lobject.h
index db9bf7c1a..e55e15683 100644
--- a/radio/src/thirdparty/Lua/src/lobject.h
+++ b/radio/src/thirdparty/Lua/src/lobject.h
@@ -117,20 +117,18 @@ typedef union Value {
 } Value;
 
 
-#define TValuefields	Value value_; int tt_
+#define TValuefields	Value value_; lu_byte tt_
 
-// #ifdef LUA_USE_ESP
-// #  pragma pack(4)
-// #endif
+#if defined(__GNUC__) || defined(__clang__)
+#define LUA_PACKED __attribute__((__packed__))
+#else
+#define LUA_PACKED
+#endif
 
-typedef struct lua_TValue {
+typedef struct LUA_PACKED lua_TValue {
   TValuefields;
 } TValue;
 
-// #ifdef LUA_USE_ESP
-// #  pragma pack()
-// #endif
-
 /* macro defining a nil value */
 #define NILCONSTANT	{NULL}, LUA_TNIL
 
@@ -509,7 +507,7 @@ typedef union Closure {
 */
 
 typedef union TKey {
-  struct {
+  struct LUA_PACKED {
     TValuefields;
     int next;  /* for chaining (offset for next node) */
   } nk;