From f85dbfc3d21e5a650468f20547175107b3bf319b Mon Sep 17 00:00:00 2001
From: Steve Dower <steve.dower@microsoft.com>
Date: Wed, 28 Dec 2016 15:41:09 -0800
Subject: [PATCH] Issue #28768: Fix implicit declaration of function _setmode.
 Patch by Masayuki Yamamoto

---
 Misc/ACKS            | 3 ++-
 Misc/NEWS            | 6 ++++++
 Modules/_io/fileio.c | 3 +++
 Modules/main.c       | 3 +++
 4 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/Misc/ACKS b/Misc/ACKS
index 223b3a8be52..647d59de0a5 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -1548,6 +1548,7 @@ Robert Xiao
 Florent Xicluna
 Alakshendra Yadav
 Hirokazu Yamamoto
+Masayuki Yamamoto
 Ka-Ping Yee
 Jason Yeo
 EungJun Yi
@@ -1574,4 +1575,4 @@ Tarek Ziadé
 Jelle Zijlstra
 Gennadiy Zlobin
 Peter Åstrand
-Dhushyanth Ramasamy
\ No newline at end of file
+Dhushyanth Ramasamy
diff --git a/Misc/NEWS b/Misc/NEWS
index 2a211ddbc2c..2be14345a43 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -42,6 +42,12 @@ Library
 - Issue #28925: cPickle now correctly propagates errors when unpickle instances
   of old-style classes.
 
+Build
+-----
+
+- Issue #28768: Fix implicit declaration of function _setmode. Patch by
+  Masayuki Yamamoto
+
 
 What's New in Python 2.7.13
 ===========================
diff --git a/Modules/_io/fileio.c b/Modules/_io/fileio.c
index 0678ef8e354..4a71a57ec0d 100644
--- a/Modules/_io/fileio.c
+++ b/Modules/_io/fileio.c
@@ -8,6 +8,9 @@
 #ifdef HAVE_SYS_STAT_H
 #include <sys/stat.h>
 #endif
+#ifdef HAVE_IO_H
+#include <io.h>
+#endif
 #ifdef HAVE_FCNTL_H
 #include <fcntl.h>
 #endif
diff --git a/Modules/main.c b/Modules/main.c
index 44217c67ca8..73e87e08fd4 100644
--- a/Modules/main.c
+++ b/Modules/main.c
@@ -10,6 +10,9 @@
 #endif
 
 #if defined(MS_WINDOWS) || defined(__CYGWIN__)
+#ifdef HAVE_IO_H
+#include <io.h>
+#endif
 #ifdef HAVE_FCNTL_H
 #include <fcntl.h>
 #endif