port activate error: can't read "revision": no such variable

[Ryan Schmidt]

On May 9, 2007, at 14:29, paul beard wrote:

>> There is no "revision" variable in the portfile. Any ideas? Thanks,
>
> This man page seems to contradict itself, but perhaps it's not  
> optional, as mentioned below.
[snip]
>      revision
>          Local revision number of Portfile.  Increment for port  
> revisions
>          which would change its installation in any way.
>          Type: optional
>          Default: 0

The revision variable is definitely optional. I've written many  
(most) portfiles without it.