From b5c1dd09f5fba780bf4bba5dc15a86718ad6951a Mon Sep 17 00:00:00 2001
From: Gregory Nutt <gnutt@nuttx.org>
Date: Thu, 11 May 2017 07:15:57 -0600
Subject: [PATCH] Syslog: Need inclusion of errno.h for fix building with
 CONFIG_SYSLOG_TIMESTMAP=y

---
 drivers/syslog/vsyslog.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/syslog/vsyslog.c b/drivers/syslog/vsyslog.c
index 94e818dc04..0b993b7186 100644
--- a/drivers/syslog/vsyslog.c
+++ b/drivers/syslog/vsyslog.c
@@ -41,6 +41,7 @@
 
 #include <stdio.h>
 #include <syslog.h>
+#include <errno.h>
 
 #include <nuttx/init.h>
 #include <nuttx/arch.h>