From 2f082668bd9f74044b94f395149f7561b29c7867 Mon Sep 17 00:00:00 2001
From: Bill Hoffman <bill.hoffman@kitware.com>
Date: Sun, 1 Jun 2008 23:40:30 -0400
Subject: [PATCH] ENH: fix crash on dash17 linux where the parsing of the proc
 file must not have worked right

---
 Source/kwsys/SystemInformation.cxx | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/Source/kwsys/SystemInformation.cxx b/Source/kwsys/SystemInformation.cxx
index f8a37bad2..373f95943 100644
--- a/Source/kwsys/SystemInformation.cxx
+++ b/Source/kwsys/SystemInformation.cxx
@@ -2199,7 +2199,12 @@ int SystemInformationImplementation::RetreiveInformationFromCpuInfoFile()
   this->NumberOfPhysicalCPU=
     this->NumberOfLogicalCPU = atoi(cpucount.c_str());
 #endif
-
+  // gotta have one, and if this is 0 then we get a / by 0n 
+  // beter to have a bad answer than a crash
+  if(this->NumberOfPhysicalCPU <= 0)
+    {
+    this->NumberOfPhysicalCPU = 1;
+    }
   // LogicalProcessorsPerPhysical>1 => hyperthreading.
   this->Features.ExtendedFeatures.LogicalProcessorsPerPhysical=
                             this->NumberOfLogicalCPU/this->NumberOfPhysicalCPU;