[CMake] Deleting a variable

[James Bigler]

 > Message: 8
 > Date: Tue, 05 Dec 2006 00:48:31 -0800
 > From: "Brandon J. Van Every" <bvanevery at gmail.com>
 > Subject: Re: [CMake] Deleting a variable
 > To: cmake <cmake at cmake.org>
 > Message-ID: <4575325F.6000908 at gmail.com>
 > Content-Type: text/plain; charset=ISO-8859-1; format=flowed
 >
 > James Bigler wrote:
 > > >
 > > > I want the variable to disappear from the list when running ccmake.
 > > > This didn't seem to do anything.
 >
 > How about SET(myvar CACHE INTERNAL "Don't show this")
 > See the docs for SET.

This "hides" it (which I could live with), but when I enable the feature 
that selectively calls this code, FIND_PROGRAM doesn't run again and 
"myvar" is junk.  When you are in ccmake, you can press "d" to delete an 
entry.  Running configure will get associated code that sets the 
variable to run again.

So, can I _delete_ a variable or not?

Thanks,
James