From 084a9407c69bca7c5b72dacb1c6177440f203338 Mon Sep 17 00:00:00 2001
From: Rapptz <rapptz@gmail.com>
Date: Fri, 5 Sep 2014 15:50:40 -0400
Subject: [PATCH] Have to add constructor to make const variables work.

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

diff --git a/sol/function_types.hpp b/sol/function_types.hpp
index 26c88d38..8ea6c390 100644
--- a/sol/function_types.hpp
+++ b/sol/function_types.hpp
@@ -28,7 +28,10 @@
 
 namespace sol {
 namespace detail {
-struct ref_call_t {};
+struct ref_call_t {
+    ref_call_t() {}
+};
+
 const auto ref_call = ref_call_t{};
 
 template<typename T, typename Func, typename = void>