From 0581f926ffdebfd399f1a89d742e3b2e2e4f3a3d Mon Sep 17 00:00:00 2001
From: Mackenzie Clark <mackenzie.a.z.c@gmail.com>
Date: Thu, 20 Dec 2018 15:28:12 -0800
Subject: [PATCH] add exception for msvc

---
 libc-test/build.rs | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/libc-test/build.rs b/libc-test/build.rs
index ffab4523..2615826f 100644
--- a/libc-test/build.rs
+++ b/libc-test/build.rs
@@ -11,6 +11,7 @@ fn main() {
     let x86_64 = target.contains("x86_64");
     let x32 = target.ends_with("gnux32");
     let windows = target.contains("windows");
+    let msvc = target.contains("windows-msvc");
     let mingw = target.contains("windows-gnu");
     let linux = target.contains("unknown-linux");
     let android = target.contains("android");
@@ -712,6 +713,9 @@ fn main() {
             s if ios && s.starts_with("RTV_") => true,
             s if ios && s.starts_with("DLT_") => true,
 
+            // these constants do not exist in msvc, but they are still useful
+            "STDIN_FILENO" | "STDOUT_FILENO" | "STDERR_FILENO" if msvc => true,
+
             _ => false,
         }
     });
-- 
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