[CMake] File modification detection based on content (not timestamp)

[John Drescher]

On Wed, Jan 7, 2009 at 5:19 PM, John Drescher <drescherjm at gmail.com> wrote:
>> ### QUESTIONS ###
>> 1. Is file modification detection based on file content instead of
>> timestamp supported already?
>> 2. Is support for it planned?
>> If not, i would like to make a feature request!
>> 3. How hard would it be to implement that?
>>
> I could be totally wrong but doesn't CMake have nothing to do with
> this? I mean CMake generates Visual Studio Projects, unix makefiles
> ... and its up to whatever build system you use to handle its
> dependencies how correctly.
>
Bad choice of words. Should have been its up to the build system to
detect what files have changed and use the rules of the project file
to determine what to build.

John