From fd53aefbf27e4ffd2423d027d10f95b3be07dead Mon Sep 17 00:00:00 2001
From: Braden Obrzut <admin@maniacsvault.net>
Date: Tue, 13 Sep 2016 20:54:06 -0400
Subject: [PATCH] Added warning if building on Visual Studio 2015 without
 v140_xp.

---
 CMakeLists.txt | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 5f0bf8293..9d7da1644 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -14,6 +14,11 @@ list( APPEND CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR} )
 include( CreateLaunchers )
 include( FindPackageHandleStandardArgs )
 
+# Produce a warning if XP support will be missing.
+if( MSVC14 AND NOT CMAKE_GENERATOR_TOOLSET STREQUAL "v140_xp" )
+	message( WARNING "This project supports Windows XP (including XP x64), but you must set the optional toolset to v140_xp manually to have it in your build! Use -T \"v140_xp\" from the command prompt." )
+endif()
+
 # Support cross compiling
 option( FORCE_CROSSCOMPILE "Turn on cross compiling." NO )
 if( FORCE_CROSSCOMPILE )