[CMake] Check dependancy for modification time

[Iwan Aucamp]

Bill Hoffman wrote:
> Iwan Aucamp wrote:
>> Is there a way to have CMake check dependencies for last modification 
>> time and only rebuild if it has changed ? like with makedepend ?
>>
>> but not just for header files but for static libraries also ?
> It already does this...  Perhaps you are not using full paths to 
> static libraries?
Actually just tested for .h files - just noticed the .h file I changed 
was not actually included - tested and saw it works - for static libs 
and include files