1 files changed, 12 insertions, 2 deletions
diff --git a/Source/cmGeneratedFileStream.cxx b/Source/cmGeneratedFileStream.cxx
index 9cee0e6..119067e 100644
--- a/Source/cmGeneratedFileStream.cxx
+++ b/Source/cmGeneratedFileStream.cxx
@@ -122,10 +122,15 @@ void cmGeneratedFileStreamBase::Open(std::string const& name)
   // Create the name of the temporary file.
   this->TempName = name;
 #if defined(__VMS)
-  this->TempName += "_tmp";
+  this->TempName += "_";
 #else
-  this->TempName += ".tmp";
+  this->TempName += ".";
 #endif
+  if (!this->TempExt.empty()) {
+    this->TempName += this->TempExt;
+  } else {
+    this->TempName += "tmp";
+  }
 
   // Make sure the temporary file that will be used is not present.
   cmSystemTools::RemoveFile(this->TempName);
@@ -216,3 +221,8 @@ void cmGeneratedFileStream::SetName(const std::string& fname)
 {
   this->Name = fname;
 }
+
+void cmGeneratedFileStream::SetTempExt(std::string const& ext)
+{
+  this->TempExt = ext;
+}