On Wed, Apr 12, 2000 at 01:18:49PM -0400, Jonathan S. Shapiro wrote:
> Do we need to preserve modification time?
>
> Problems I see:
>
> 1. Modification time is not uniformly reported. Different platforms track it
> in differing granularity, and I'm suspicious about reliably converting to
> UTC time on various platforms, particularly WinXX. If we need to track this,
> then the best solution I can see is to make a best effort, but check to
> ensure that mod times always increase, and that they don't appear to be in
> the future.
Also, preserving modification time will break "make". If you checkout a version of a file which is in the past with respect to the last compilation, "make" will not see that all the files depending on this file need to be updated.