Locating obsolete ports distfiles

[Pascal Hofstee]

On Mon, 2005-08-22 at 14:36 +1000, Peter Jeremy wrote:
> I currently have just over 8GB is /usr/ports/distfiles.  Some of these
> files are more than 10 years old and long obsolete.  Does anyone have
> any suggestions on how to identify which files are no longer referenced
> by current ports?
> 
> Doing a 'make checksum' on every installed port and then looking at
> the atimes is one approach but this doesn't handle:
> - ports that I don't currently have installed but might need
> - ports installed on systems that mount /usr/ports readonly

sysutils/portupgrade (specifically .. portsclean -D)

-- 
Pascal Hofstee <caelian at gmail.com>