Zac Medico schrieb:
> The primary reason to use a digest for cache validation instead of a
> timestamp is that it allows the cache validation mechanism to work
> even if the tree is distributed with a protocol that does not
> preserve timestamps, such as git or subversion. This would make it
> possible to distribute metadata cache directly from git and
> subversion repositories (among others). 

So just to make sure I understand what you're after... You want to add 
some checksum to the cache file to make sure that all its other vars 
(line 1-17) are still the same even though there are timestamp issues? 
Or is that checksum for the ebuild file (which is in the Manifest file 
in the ebuild dir)?

Greetz
-Jokey