From 11f382ee780649549428cb25af3a9f1d3465868d Mon Sep 17 00:00:00 2001
From: Aurelien Jarno <aurelien@aurel32.net>
Date: Tue, 8 Jan 2019 21:10:28 +0100
Subject: testsuite: stdlib/isomac.c: add missing include
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When running the testsuite, building stdlib/isomac.c outputs the
following warning:

  gcc -O   -D_GNU_SOURCE -DIS_IN_build -include /home/aurel32/glibc-build/config.h isomac.c -o /home/aurel32/glibc-build/stdlib/isomac
  isomac.c: In function ‘get_null_defines’:
  isomac.c:260:3: warning: implicit declaration of function ‘close’; did you mean ‘pclose’? [-Wimplicit-function-declaration]
     close (fd);
     ^~~~~
     pclose

Fix that by adding the <unistd.h> include.

Changelog:
	* stdlib/isomac.c: Include <unistd.h>.
---
 ChangeLog       | 4 ++++
 stdlib/isomac.c | 1 +
 2 files changed, 5 insertions(+)

diff --git a/ChangeLog b/ChangeLog
index 628aaef05f..82604298de 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2019-02-03  Aurelien Jarno  <aurelien@aurel32.net>
+
+	* stdlib/isomac.c: Include <unistd.h>.
+
 2019-02-03  Florian Weimer  <fweimer@redhat.com>
 
 	* include/time.h (__tzfile_default): Use int, not long int, for
diff --git a/stdlib/isomac.c b/stdlib/isomac.c
index 37f564c82a..7d743cb8e5 100644
--- a/stdlib/isomac.c
+++ b/stdlib/isomac.c
@@ -74,6 +74,7 @@
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <unistd.h>
 
 #define HEADER_MAX          256
 
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