1 files changed, 7 insertions, 0 deletions
diff --git a/Source/cmConfigureFileCommand.cxx b/Source/cmConfigureFileCommand.cxx
index a3cf1dd..b382f86 100644
--- a/Source/cmConfigureFileCommand.cxx
+++ b/Source/cmConfigureFileCommand.cxx
@@ -28,6 +28,13 @@ bool cmConfigureFileCommand::InitialPass(std::vector<std::string> const& args)
     }
   this->InputFile = args[0];
   this->OuputFile = args[1];
+  if ( !this->Makefile->CanIWriteThisFile(this->OuputFile.c_str()) )
+    {
+    std::string e = "attempted to configure a file: " + this->OuputFile + " into a source directory.";
+    this->SetError(e.c_str());
+    cmSystemTools::SetFatalErrorOccured();
+    return false;
+    }
   this->CopyOnly = false;
   this->EscapeQuotes = false;