From 1af304131e51249679860d3378fbb6bc31c9dcfc Mon Sep 17 00:00:00 2001
From: Miodrag Milanovic <mmicko@gmail.com>
Date: Thu, 3 Dec 2015 13:18:20 +0100
Subject: [PATCH] fix compile on clang 3.7 (nw)

---
 scripts/src/3rdparty.lua | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/scripts/src/3rdparty.lua b/scripts/src/3rdparty.lua
index 773a6f9384c..c1300eac887 100644
--- a/scripts/src/3rdparty.lua
+++ b/scripts/src/3rdparty.lua
@@ -296,6 +296,16 @@ project "7z"
 	uuid "ad573d62-e76a-4b11-ae34-5110a6789a42"
 	kind "StaticLib"
 
+	local version = str_to_version(_OPTIONS["gcc_version"])
+	if _OPTIONS["gcc"]~=nil and string.find(_OPTIONS["gcc"], "clang") then
+		configuration { "gmake" }
+		if (version >= 30700) then
+			buildoptions {
+				"-Wno-shift-negative-value",
+			}
+		end	
+	end
+
 	configuration { "vs*" }
 		buildoptions {
 			"/wd4100", -- warning C4100: 'xxx' : unreferenced formal parameter