[CMake] default generator officially supported?

[Martin Weber]

Hi,

in [1] some pointed out that cmake seems to have a notion of _default 
genrator_, that is: If you invoke cmake without the -D option, it chose a 
generator depending on the platform and create the build scripts.

Is this nice feature officially supported by cmake? I could not find it 
documented anywhere.

TIA,
	Martin

[1] https://issues.jenkins-ci.org/browse/JENKINS-38227

-- 
Cd wrttn wtht vwls s mch trsr.