Where is documentation for ZERO_CHECK and INSTALL targets ?


I use Visual Studio generator, and it produces four targets (-> 4 projects in VS), including ZERO_CHECK and INSTALL. There is nothing about these points the the generator documentation.

With a know search engine, I made the following search:
“ZERO_CHECK” site:https://cmake.org/cmake/help/

I found only two entries, regarding a bug in the ZERO_CHECK logic for XCode.
I didn’t search for INSTALL, because the word is too generic.

So there is no documentation for ZERO_CHECK and INSTALL ?

PS: In Professional CMake book, INSTALL is tackled in the chapter Deployment And Dependencies > Installing > Base Install Location, and ZERO_CHECK in Builds In Depth > Apple features > Limitations.