From 2ad753ece42b6208ff530b857c3fe53f87d594ab Mon Sep 17 00:00:00 2001
From: slipher <slipher@protonmail.com>
Date: Sun, 5 Apr 2020 04:13:48 +0200
Subject: [PATCH] clang/error: fix: non-type template argument refers to
 function Export that does not have linkage

---
 radiant/dialog.cpp | 30 +++++++++++++++++-------------
 1 file changed, 17 insertions(+), 13 deletions(-)

diff --git a/radiant/dialog.cpp b/radiant/dialog.cpp
index 1c628ff1..66f2d998 100644
--- a/radiant/dialog.cpp
+++ b/radiant/dialog.cpp
@@ -256,24 +256,28 @@ public:
 	}
 };
 
+template<class Widget, class Self, class T, class native>
+struct AddDataCustom_Wrapper {
+    static void Export(const native &self, const Callback<void(T)> &returnz) {
+        native *p = &const_cast<native &>(self);
+        auto widget = Self::from(p);
+        Widget::Get::thunk_(widget, returnz);
+    }
+
+    static void Import(native &self, T value) {
+        native *p = &self;
+        auto widget = Self::from(p);
+        Widget::Set::thunk_(widget, value);
+    }
+};
+
 template<class Widget>
 void AddDataCustom(DialogDataList &self, typename Widget::Type widget, Property<typename Widget::Other> const &property) {
     using Self = typename Widget::Type;
     using T = typename Widget::Other;
     using native = typename std::remove_pointer<typename Self::native>::type;
-    struct Wrapper {
-        static void Export(const native &self, const Callback<void(T)> &returnz) {
-			native *p = &const_cast<native &>(self);
-			auto widget = Self::from(p);
-			Widget::Get::thunk_(widget, returnz);
-        }
-
-        static void Import(native &self, T value) {
-			native *p = &self;
-			auto widget = Self::from(p);
-			Widget::Set::thunk_(widget, value);
-        }
-    };
+    using Wrapper = AddDataCustom_Wrapper<Widget, Self, T, native>;
+    
     self.push_back(new CallbackDialogData<typename Widget::Other>(
             make_property<PropertyAdaptor<native, T, Wrapper>>(*static_cast<native *>(widget)),
             property
-- 
2.39.2