[cmake-developers] enable_language behavior change

[Robert Dailey]

On Thu, Mar 23, 2017 at 10:33 AM, Brad King <brad.king at kitware.com> wrote:
> On 03/23/2017 11:16 AM, Robert Dailey wrote:
>> I remember around cmake v3.6, the behavior of enable_language()
>> changed so that if you did it too many times, you'd get the error:
>>
>> Language 'C' is currently being enabled.  Recursive call not allowed.
>>
>> I need to implement some backward compatibility code to check of CMake
>> version less than 3.6 (or appropriate version), then still call
>> enable_language(), otherwise do not call it.
>>
>> Is 3.6 the correct version in which this behavior was introduced?
>
> Yes.  It was commit v3.6.0-rc1~293^2.

Thanks Brad. For future reference, are these changes documented
anywhere? I searched for "enable_language" in the 3.6 release notes,
and there is no 3.6 entry for policy changes.