From f115ab2dd2fd42c3d90bdbd3ce16e091839df24e Mon Sep 17 00:00:00 2001
From: Cowering <cowering@users.noreply.github.com>
Date: Fri, 29 May 2015 17:43:09 -0500
Subject: [PATCH] Let subtarget MESS (not MAME, yet) compile with Windows GCC
 5.1 and lto. I am told 'any' recent GCC for Windows has gcc-ar wrapper, if
 not, change back the line in toolchain.lua (NW)

---
 scripts/genie.lua     | 23 +++++++++--------------
 scripts/toolchain.lua |  3 ++-
 2 files changed, 11 insertions(+), 15 deletions(-)

diff --git a/scripts/genie.lua b/scripts/genie.lua
index 004016c916f..356d4d8d3dc 100644
--- a/scripts/genie.lua
+++ b/scripts/genie.lua
@@ -725,24 +725,19 @@ if _OPTIONS["OPTIMIZE"] then
 		}
 	end
 	if _OPTIONS["LTO"]=="1" then
+-- -flto=4 -> 4 threads
 		buildoptions {
-			"-flto",
+			"-flto=4",
+		}
+		buildoptions {
+			"-fno-fat-lto-objects",
 		}
---		buildoptions {
---			"-ffat-lto-objects",
---		}
---		buildoptions {
---			"-flto-partition=1to1",
---		}
 		linkoptions {
-			"-flto",
+			"-flto=4",
+		}
+		linkoptions {
+			"-fno-fat-lto-objects",
 		}
---		linkoptions {
---			"-flto-partition=1to1",
---		}
---		linkoptions {
---			"-ffat-lto-objects",
---		}
 		
 		
 	end
diff --git a/scripts/toolchain.lua b/scripts/toolchain.lua
index 91d1f29884e..d86c3d53f8f 100644
--- a/scripts/toolchain.lua
+++ b/scripts/toolchain.lua
@@ -199,7 +199,8 @@ function toolchain(_buildDir, _subDir)
 			end				
 			premake.gcc.cc  = "$(MINGW64)/bin/x86_64-w64-mingw32-gcc"
 			premake.gcc.cxx = "$(MINGW64)/bin/x86_64-w64-mingw32-g++"
-			premake.gcc.ar  = "$(MINGW64)/bin/ar"
+--			premake.gcc.ar  = "$(MINGW64)/bin/ar"
+			premake.gcc.ar  = "$(MINGW64)/bin/gcc-ar"
 			location (_buildDir .. "projects/" .. _subDir .. "/".. _ACTION .. "-mingw64-gcc")
 		end