port install efficiency issue

[Rainer Müller]

Ryan Schmidt wrote:
>> I think port not only pays attention to epoch/version/revision but  
>> also the
>> timestamp of Portfile; when Portfile is newer than the install,  
>> even when
>> the versioning says it's already installed, it'll run again.
> 
> I would not have expected that.
> 
> If a rebuild is needed, the maintainer needs to increase the  
> revision, version, or epoch.

I reported this problem earlier:
http://lists.macosforge.org/pipermail/macports-dev/2008-February/004563.html

If nobody can think of a valid use for this check we should just drop it.

Rainer