From 148d5e799e37ac12bfeefac17ad9392debc26589 Mon Sep 17 00:00:00 2001
From: Robert Osfield <robert@openscenegraph.com>
Date: Thu, 23 Jun 2016 16:50:35 +0100
Subject: [PATCH] Added minimum usage to make sure that numProcessers is always
 1 or greater

---
 src/osgViewer/ViewerBase.cpp | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/osgViewer/ViewerBase.cpp b/src/osgViewer/ViewerBase.cpp
index 7f5049616..743d6d2dd 100644
--- a/src/osgViewer/ViewerBase.cpp
+++ b/src/osgViewer/ViewerBase.cpp
@@ -328,7 +328,7 @@ void ViewerBase::startThreading()
         }
     }
 
-    int numProcessors = OpenThreads::GetNumberOfProcessors();
+    int numProcessors = osg::minimum(1, OpenThreads::GetNumberOfProcessors());
     bool affinity = numProcessors>1;
 
     Contexts::iterator citr;