From 9ab540b614f49bf7b2d0186bf8c17cd1525e1d40 Mon Sep 17 00:00:00 2001
From: Peter van Dijk <peter.van.dijk@powerdns.com>
Date: Tue, 17 Apr 2018 20:37:13 +0200
Subject: [PATCH] when panicing, report why, and don't exit zero

---
 include/LuaContext.hpp | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/include/LuaContext.hpp b/include/LuaContext.hpp
index 1e9bcbb..18fe3e2 100644
--- a/include/LuaContext.hpp
+++ b/include/LuaContext.hpp
@@ -32,12 +32,14 @@ SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include <array>
 #include <cassert>
 #include <cmath>
+#include <cstdlib>
 #include <cstring>
 #include <functional>
 #include <limits>
 #include <list>
 #include <map>
 #include <memory>
+#include <iostream>
 #include <random>
 #include <set>
 #include <stdexcept>
@@ -97,9 +99,10 @@ class LuaContext {
         // setting the panic function
         lua_atpanic(mState, [](lua_State* state) -> int {
             const std::string str = lua_tostring(state, -1);
+            std::cerr<<"lua panic: "<<str<<std::endl;
             lua_pop(state, 1);
             assert(false && "lua_atpanic triggered");
-            exit(0);
+            exit(EXIT_FAILURE);
         });
 
         // opening default library if required to do so