[cmake-developers] Policy to require project()

[Stephen Kelly]

Hello,

If a project() command is not written in used code, cmake will generate one. 
When invoked, it sets up the toolchain.

The cmake_minimum_required() command must appear before the project() 
command, so that the AppleClang compiler id may be set correctly, according 
to CMP0025.

Policy CMP0000 requires that the cmake_minimum_required() command must be 
used. That policy could be set to REQUIRED_ALWAYS in CMake 4.0. However, 
there would still be no enforcement of requiring the project() command to 
come after that.

Does it make sense to add a policy to CMake 3.0 requiring that the project() 
command be present and come after cmake_minimum_required(), and generating 
the project() only in OLD behavior?

Thanks,

Steve.