[CMake] Question about set

[Workbench@gmx.at]

I need it for an INTERNAL variable, for the different android 
architecture types that are supported. so he can only set one of the 
available arch types.


On 18.02.19 18:16, Kyle Edwards wrote:
> On Mon, 2019-02-18 at 17:59 +0100, Andreas Naumann wrote:
>> Hey,
>>
>> I would introduce a list with the allowed values and introduce a
>> macro
>> "checked_set", which tests the setting or aborts.
>>
>> Regards,
>> Andreas"
>>
>> Am 18.02.19 um 15:06 schrieb Workbench at gmx.at:
>>> Hi everyone,
>>>
>>> i've looked the web but found no result. I need a string variable
>>> that
>>> allows only certain values, like bool variables only allow
>>> true/false
>>> my string should be either "A" or "B" ...
> Is this a cache variable or a regular variable? Cache variables have
> this enum-like support in the form of the STRINGS property. Example:
>
> set(MYSTRING "A" CACHE STRING "Documentation for the variable")
> set_property(CACHE MYSTRING PROPERTY STRINGS "A;B")
>
> If you need to do this with an ordinary variable, consider using
> variable_watch().
>
> Kyle
>