I have some optional code that runs and creates some variables

IF(MY_VAR)
  SET(MY_OTHER_VAR 2)
ENDIF(MY_VAR)

If I turn off MY_VAR, I want MY_OTHER_VAR to do away like this:

IF(MY_VAR)
  SET(MY_OTHER_VAR 2)
ELSE(MY_VAR)
  DELETE(MY_OTHER_VAR)
ENDIF(MY_VAR)

Can this be done?

Thanks,
James

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