ENH: Keep only FinalPass commands in memory

In cmMakefile we save all invoked commands so that FinalPass can be
called on them later.  Most commands have no final pass, so we should
keep only the few that do.

1 files changed, 5 insertions, 0 deletions

diff --git a/Source/cmCommand.h b/Source/cmCommand.h
index ed00b78..1a85102 100644
--- a/Source/cmCommand.h
+++ b/Source/cmCommand.h
@@ -87,6 +87,11 @@ public:
    * writing to the cache can be done.
    */
   virtual void FinalPass() {};
+
+  /**
+   * Does this command have a final pass?  Query after InitialPass.
+   */
+  virtual bool HasFinalPass() const { return false; }
   
   /**
    * This is a virtual constructor for the command.