From a234bcafd2487ff348546addd9d07f5c74549528 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=C3=85dne=20Hovda?= <ahovda@openit.com>
Date: Tue, 11 Nov 2014 10:13:55 +0100
Subject: [PATCH] KWSys SystemInformation: Check for _SC_AIX_REALMEM before
 using it

Add a check for supported flag when querying for system memory on
AIX 5.1.
---
 Source/kwsys/SystemInformation.cxx | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Source/kwsys/SystemInformation.cxx b/Source/kwsys/SystemInformation.cxx
index 84b5f39f3..c4aeb473f 100644
--- a/Source/kwsys/SystemInformation.cxx
+++ b/Source/kwsys/SystemInformation.cxx
@@ -3913,7 +3913,7 @@ bool SystemInformationImplementation::QueryCygwinMemory()
 
 bool SystemInformationImplementation::QueryAIXMemory()
 {
-#if defined(_AIX)
+#if defined(_AIX) && defined(_SC_AIX_REALMEM)
   long c = sysconf(_SC_AIX_REALMEM);
   if (c <= 0)
     {