From b625461132b67a7a6b0429dd0091bc0643683a69 Mon Sep 17 00:00:00 2001
From: John Emmas <john@creativepost.co.uk>
Date: Sat, 6 Mar 2021 11:12:02 +0000
Subject: [PATCH] Guard some code which isn't currently buildable with VS2019

For some unknown reason, VC++2019 won't let us take the address of std::list::unique() - although other std::list members seem okay. I've spent weeks tracking this down but there's no fix available AFAICT.

I've flagged it up to the MSVC development team - just don't hold your breath !!
---
 libs/lua/LuaBridge/detail/Namespace.h | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/libs/lua/LuaBridge/detail/Namespace.h b/libs/lua/LuaBridge/detail/Namespace.h
index fdb9e82012..f78c41ee64 100644
--- a/libs/lua/LuaBridge/detail/Namespace.h
+++ b/libs/lua/LuaBridge/detail/Namespace.h
@@ -1899,7 +1899,10 @@ public:
   {
     typedef std::list<T> LT;
     return beginConstStdList<T> (name)
+#if !defined(_MSC_VER) || (_MSC_VER < 1900)
+	  /* std::list::unique() got broken in later versions of MSVC */
       .addFunction ("unique", (void (LT::*)())&LT::unique)
+#endif
       .addFunction ("push_back", (void (LT::*)(const T&))&LT::push_back)
       .addExtCFunction ("add", &CFunc::tableToList<T, LT>);
   }
@@ -1926,7 +1929,10 @@ public:
     typedef T* TP;
     typedef std::list<TP> LT;
     return beginConstStdCPtrList<T> (name)
+#if !defined(_MSC_VER) || (_MSC_VER < 1900)
+	  /* std::list::unique() got broken in later versions of MSVC */
       .addFunction ("unique", (void (LT::*)())&LT::unique)
+#endif
       .addExtCFunction ("push_back", &CFunc::pushbackptr<T, LT>);
   }
 
@@ -1970,7 +1976,10 @@ public:
       .addPtrFunction ("empty", &LT::empty)
       .addPtrFunction ("size", &LT::size)
       .addPtrFunction ("reverse", &LT::reverse)
+#if !defined(_MSC_VER) || (_MSC_VER < 1900)
+	  /* std::list::unique() got broken in later versions of MSVC */
       .addPtrFunction ("unique", (void (LT::*)())&LT::unique)
+#endif
       .addPtrFunction ("push_back", (void (LT::*)(const T&))&LT::push_back)
       .addExtCFunction ("add", &CFunc::ptrTableToList<T, LT>)
       .addExtCFunction ("iter", &CFunc::ptrListIter<T, LT>)