From d3a3466b142af9ae96cf3e664abad3c34f488754 Mon Sep 17 00:00:00 2001
From: ehofman <ehofman>
Date: Tue, 27 Apr 2004 08:59:31 +0000
Subject: [PATCH] Make sure the prototype definition of sleep() is found (at
 least for IRIX).

---
 simgear/sound/openal_test1.cxx | 1 +
 simgear/sound/openal_test2.cxx | 1 +
 2 files changed, 2 insertions(+)

diff --git a/simgear/sound/openal_test1.cxx b/simgear/sound/openal_test1.cxx
index 55127b2b..0a62ef1e 100644
--- a/simgear/sound/openal_test1.cxx
+++ b/simgear/sound/openal_test1.cxx
@@ -1,4 +1,5 @@
 #include <stdio.h>
+#include <unistd.h>	// sleep()
 
 #if defined( __APPLE__ )
 # define AL_ILLEGAL_ENUM AL_INVALID_ENUM
diff --git a/simgear/sound/openal_test2.cxx b/simgear/sound/openal_test2.cxx
index 44a36e26..63353ab6 100644
--- a/simgear/sound/openal_test2.cxx
+++ b/simgear/sound/openal_test2.cxx
@@ -1,4 +1,5 @@
 #include <stdio.h>
+#include <unistd.h>	// sleep()
 
 #include "sample_openal.hxx"
 #include "soundmgr_openal.hxx"
-- 
2.39.5