[CMake] PARENT_SCOPE for unset()?

[David Cole]

On Thu, Feb 9, 2012 at 2:41 PM, Robert Dailey <rcdailey at gmail.com> wrote:

> I didn't try that because I thought it would actually treat PARENT_SCOPE
> as a string and add it to the variable. I did this instead:
>
> set( var "" PARENT_SCOPE )
>

That leaves it set, with a value of the empty string, in the parent scope.
Give the one I sent a try.



>
> ---------
> Robert Dailey
>
>
>
> On Thu, Feb 9, 2012 at 1:26 PM, David Cole <david.cole at kitware.com> wrote:
>
>> On Thu, Feb 9, 2012 at 2:22 PM, Alexander Neundorf <
>> a.neundorf-work at gmx.net> wrote:
>>
>>> On Thursday 09 February 2012, Robert Dailey wrote:
>>> > It would seem useful to have a PARENT_SCOPE option for the unset()
>>> command,
>>> > just like its set() counterpart. Is there a particular reason why it
>>> does
>>> > not have it now?
>>>
>>> No, I think there is not particular reason.
>>>
>>> Alex
>>> --
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>>
>>
>> Does:
>>
>>   set(var PARENT_SCOPE)
>>
>> have the intended effect?
>>
>> (If so, you could use that until such time as PARENT_SCOPE is added to
>> unset.)
>>
>>
>> --
>>
>> Powered by www.kitware.com
>>
>> Visit other Kitware open-source projects at
>> http://www.kitware.com/opensource/opensource.html
>>
>> Please keep messages on-topic and check the CMake FAQ at:
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>
>
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