Issue #28768: Fix implicit declaration of function _setmode. Patch by Masayuki Yamamoto

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
+Dhushyanth Ramasamy

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
 ===========================

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

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