From 07d436a8b3c9ca6c5f35bb803b5a5790a88784ce Mon Sep 17 00:00:00 2001
From: Chris van Dijk <c.vandijk@cosine.nl>
Date: Mon, 26 Jan 2015 01:07:29 +0100
Subject: [PATCH] Include missing header, fixes #690 lack of monotonic Clock on
 Linux/POSIX

The macros _POSIX_TIMERS and _POSIX_MONOTONIC_CLOCK are defined in
(includes of) unistd.h, without them Clock falls back to using Timestamp
internally.
---
 Foundation/src/Clock.cpp | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Foundation/src/Clock.cpp b/Foundation/src/Clock.cpp
index 6000ef38b..ac95bfc80 100644
--- a/Foundation/src/Clock.cpp
+++ b/Foundation/src/Clock.cpp
@@ -22,6 +22,7 @@
 #include <mach/clock.h>
 #elif defined(POCO_OS_FAMILY_UNIX)
 #include <time.h>
+#include <unistd.h>
 #elif defined(POCO_VXWORKS)
 #include <timers.h>
 #elif defined(POCO_OS_FAMILY_WINDOWS)