1 files changed, 1 insertions, 0 deletions
diff --git a/Source/cmServerProtocol.h b/Source/cmServerProtocol.h
index c71b7bf..6009e23 100644
--- a/Source/cmServerProtocol.h
+++ b/Source/cmServerProtocol.h
@@ -94,6 +94,7 @@ protected:
   // Implement protocol specific activation tasks here. Called from Activate().
   virtual bool DoActivate(const cmServerRequest& request,
                           std::string* errorMessage);
+  bool m_WarnUnused = false; // storage for legacy option
 
 private:
   std::unique_ptr<cmake> m_CMakeInstance;