From 4e04aa3224d826bdaed338389c4148e2cd959d90 Mon Sep 17 00:00:00 2001
From: Peter Ferrie <peter.ferrie@gmail.com>
Date: Sat, 16 Feb 2019 11:49:07 -0800
Subject: [PATCH] silence MS-LLVM (nw)

---
 3rdparty/softfloat3/build/MAME/platform.h |  2 +-
 scripts/genie.lua                         | 43 ++++++++++++++++++++++-
 2 files changed, 43 insertions(+), 2 deletions(-)

diff --git a/3rdparty/softfloat3/build/MAME/platform.h b/3rdparty/softfloat3/build/MAME/platform.h
index 96fc81e348e..5dfa704955c 100644
--- a/3rdparty/softfloat3/build/MAME/platform.h
+++ b/3rdparty/softfloat3/build/MAME/platform.h
@@ -54,7 +54,7 @@ Softfloat 3 MAME modifications
 /*----------------------------------------------------------------------------
 *----------------------------------------------------------------------------*/
 
-#if defined(_MSC_VER)
+#if defined(_MSC_VER) && !defined(__clang__)
 
 #define _INC_MALLOC 0
 #include <intrin.h>
diff --git a/scripts/genie.lua b/scripts/genie.lua
index 5d85297dfee..fd09446d595 100644
--- a/scripts/genie.lua
+++ b/scripts/genie.lua
@@ -509,6 +509,34 @@ configuration { "Release", "vs20*" }
 		"NoIncrementalLink",
 	}
 
+configuration { "vsllvm" }
+	buildoptions {
+		"/bigobj",
+	}
+	flags {
+		"NoPCH",
+		"ExtraWarnings",
+	}
+	if not _OPTIONS["NOWERROR"] then
+		flags{
+			"FatalWarnings",
+		}
+	end
+
+
+configuration { "Debug", "vsllvm" }
+	flags {
+		"Symbols",
+		"NoMultiProcessorCompilation",
+	}
+
+configuration { "Release", "vsllvm" }
+	flags {
+		"Optimize",
+		"NoEditAndContinue",
+		"NoIncrementalLink",
+	}
+
 -- Force VS2015/17 targets to use bundled SDL2
 if string.sub(_ACTION,1,4) == "vs20" and _OPTIONS["osd"]=="sdl" then
 	if _OPTIONS["with-bundled-sdl2"]==nil then
@@ -1276,6 +1304,16 @@ configuration { "vs20*" }
 			"_CRT_SECURE_NO_DEPRECATE",
 			"_CRT_STDIO_LEGACY_WIDE_SPECIFIERS",
 		}
+
+configuration { "vsllvm" }
+		defines {
+			"XML_STATIC",
+			"WIN32",
+			"_WIN32",
+			"_CRT_NONSTDC_NO_DEPRECATE",
+			"_CRT_SECURE_NO_DEPRECATE",
+			"_CRT_STDIO_LEGACY_WIDE_SPECIFIERS",
+		}
 -- Windows Store/Phone projects already link against the available libraries.
 if _OPTIONS["vs"]==nil or not (string.startswith(_OPTIONS["vs"], "winstore8") or string.startswith(_OPTIONS["vs"], "winphone8")) then
 		links {
@@ -1417,7 +1455,7 @@ configuration { "winphone8* or winstore8*" }
 	linkoptions {
 		"/ignore:4264" -- LNK4264: archiving object file compiled with /ZW into a static library; note that when authoring Windows Runtime types it is not recommended to link with a static library that contains Windows Runtime metadata
 	}
-configuration { "llvm" }
+configuration { "vsllvm" }
 		buildoptions {
 			"-Wno-tautological-constant-out-of-range-compare",
 			"-Wno-ignored-qualifiers",
@@ -1428,6 +1466,7 @@ configuration { "llvm" }
 			"-Wno-unused-label",
 			"-Wno-unused-local-typedef",
 			"-Wno-unused-const-variable",
+			"-Wno-unused-parameter",
 			"-Wno-unneeded-internal-declaration",
 			"-Wno-unused-private-field",
 			"-Wno-missing-braces",
@@ -1437,8 +1476,10 @@ configuration { "llvm" }
 			"-Wno-enum-conversion",
 			"-Wno-pragma-pack",
 			"-Wno-new-returns-null",
+			"-Wno-sign-compare",
 			"-Wno-switch",
 			"-Wno-tautological-undefined-compare",
+			"-Wno-deprecated-declarations",
 		}