From 5cbb921bb6e9f26c5025adebab2e157fc293fd4a Mon Sep 17 00:00:00 2001
From: Alex Crichton <alex@alexcrichton.com>
Date: Tue, 22 Aug 2017 12:08:13 -0700
Subject: [PATCH] Switch MSVC from /Wall to /W4

Apparently 4 is recommended by Microsoft!

https://msdn.microsoft.com/en-us/library/thxezb7y.aspx
---
 src/lib.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/lib.rs b/src/lib.rs
index 2d8e71ea..b9d3580a 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -199,7 +199,7 @@ impl ToolFamily {
 
     /// What the flags to enable all warnings
     fn warnings_flags(&self) -> &'static [&'static str] {
-        static MSVC_FLAGS: &'static [&'static str] = &["/Wall"];
+        static MSVC_FLAGS: &'static [&'static str] = &["/W4"];
         static GNU_CLANG_FLAGS: &'static [&'static str] = &["-Wall", "-Wextra"];
 
         match *self {