From b8ea771b13989f353c2762abd40a65b6d33a1eb7 Mon Sep 17 00:00:00 2001
From: Paul Martin <paul.martin@codethink.co.uk>
Date: Fri, 27 Feb 2015 10:45:26 -0500
Subject: [PATCH] KWSys SystemTools: Update CopyFileAlways stream library
 workarounds

On some stream libraries failbit is not set when trying to read past
EOF.  Instead, always exit the copy loop when gcount() is zero.
---
 Source/kwsys/SystemTools.cxx | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/Source/kwsys/SystemTools.cxx b/Source/kwsys/SystemTools.cxx
index 27082115d..b03e7b018 100644
--- a/Source/kwsys/SystemTools.cxx
+++ b/Source/kwsys/SystemTools.cxx
@@ -2330,6 +2330,10 @@ bool SystemTools::CopyFileAlways(const kwsys_stl::string& source, const kwsys_st
       {
       fout.write(buffer, fin.gcount());
       }
+    else
+      {
+      break;
+      }
     }
 
   // Make sure the operating system has finished writing the file