From 0dd7f2d153cf7b744bdf3e49af67cfe780b2e97d Mon Sep 17 00:00:00 2001
From: Mackenzie Clark <mackenzie.a.z.c@gmail.com>
Date: Thu, 20 Dec 2018 15:39:42 -0800
Subject: [PATCH] instead backfill constants on msvc

---
 libc-test/build.rs | 10 +++++++---
 1 file changed, 7 insertions(+), 3 deletions(-)

diff --git a/libc-test/build.rs b/libc-test/build.rs
index 2615826f..ec0d1e0d 100644
--- a/libc-test/build.rs
+++ b/libc-test/build.rs
@@ -55,6 +55,13 @@ fn main() {
         cfg.define("in_port_t", Some("uint16_t"));
     }
 
+    // these constants do not exist in msvc, but they are still useful
+    if msvc {
+        cfg.define("STDIN_FILENO", Some("0"));
+        cfg.define("STDOUT_FILENO", Some("1"));
+        cfg.define("STDERR_FILENO", Some("2"));
+    }
+
     cfg.header("errno.h")
         .header("fcntl.h")
         .header("limits.h")
@@ -713,9 +720,6 @@ 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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