From 0addc75520d46f628fc84f76ba52c84dfaac5795 Mon Sep 17 00:00:00 2001
From: Andy Cedilnik <andy.cedilnik@kitware.com>
Date: Fri, 17 Mar 2006 12:24:37 -0500
Subject: [PATCH] COMP: Handle windows with hack for now

---
 Source/cmSystemTools.cxx | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/Source/cmSystemTools.cxx b/Source/cmSystemTools.cxx
index 3b63e8716..28662a9a3 100644
--- a/Source/cmSystemTools.cxx
+++ b/Source/cmSystemTools.cxx
@@ -1282,7 +1282,18 @@ bool cmSystemTools::PutEnv(const char* value)
 
 bool cmSystemTools::UnsetEnv(const char* value)
 {
+#ifdef _WIN32
+  std::string var = value;
+  std::string::size_type pos = var.find("=");
+  if ( pos == var.npos )
+    {
+    continue;
+    }
+  var = var.substr(0, pos+1);
+  return cmSystemTools::PutEnv(var.c_str());
+#else
   return unsetenv(value) == 0;
+#endif
 }
 
 std::vector<std::string> cmSystemTools::GetEnvironmentVariables()