From 3fb727c34d2f499ba8fb22771dc42564383e902e Mon Sep 17 00:00:00 2001
From: Mark Adler <madler@alumni.caltech.edu>
Date: Sun, 29 Jan 2012 19:20:13 -0800
Subject: [PATCH] Include io.h in gzguts.h for Microsoft compilers.

---
 gzguts.h | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/gzguts.h b/gzguts.h
index 3107c36..f8dd9ad 100644
--- a/gzguts.h
+++ b/gzguts.h
@@ -27,7 +27,7 @@
 #endif
 #include <fcntl.h>
 
-#ifdef __TURBOC__
+#if defined(__TURBOC__) || defined(_MSC_VER)
 #  include <io.h>
 #endif
 
@@ -66,7 +66,6 @@
 /* In Win32, vsnprintf is available as the "non-ANSI" _vsnprintf. */
 #    if !defined(vsnprintf) && !defined(NO_vsnprintf)
 #      if !defined(_MSC_VER) || ( defined(_MSC_VER) && _MSC_VER < 1500 )
-#         include <io.h>
 #         define vsnprintf _vsnprintf
 #      endif
 #    endif
-- 
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