[cmake-developers] enable_language behavior change

[Brad King]

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.

-Brad