From 6e97b5f8c559b22d5de749ef680711bd578f418d Mon Sep 17 00:00:00 2001
From: Daniel Hahler <git@thequod.de>
Date: Thu, 16 Jul 2015 15:25:39 +0200
Subject: [PATCH] Use luaL_traceback with luaA_warn and luaA_typerror

---
 luaa.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/luaa.h b/luaa.h
index 6b6b38087..1ee991815 100644
--- a/luaa.h
+++ b/luaa.h
@@ -56,6 +56,9 @@ luaA_warn(lua_State *L, const char *fmt, ...)
     vfprintf(stderr, fmt, ap);
     va_end(ap);
     fprintf(stderr, "\n");
+
+    luaL_traceback(L, L, NULL, 2);
+    fprintf(stderr, "%s\n", lua_tostring(L, -1));
 }
 
 static inline int
@@ -63,6 +66,8 @@ luaA_typerror(lua_State *L, int narg, const char *tname)
 {
     const char *msg = lua_pushfstring(L, "%s expected, got %s",
                                       tname, luaL_typename(L, narg));
+    luaL_traceback(L, L, NULL, 2);
+    lua_concat(L, 2);
     return luaL_argerror(L, narg, msg);
 }