[ccache] does ccache include source code modified time into hash?

[Andrew Stubbs]

On 12/11/14 20:22, Joel Rosdahl wrote:
> Since the manual wasn't clear enough, what kind of information do you
> think would be good to add to the "How ccache works" section?
> Suggestions are very welcome.

FWIW, I think that any detailed description is too much for the user manual.

However, it might appropriate to list the factors that can lead to a 
cache miss, and mention some of the factors that explicitly do not cause 
a miss.

Andrew