Use of xz instead of gzip

[Stephen Montgomery-Smith]

On 08/10/2011 08:17 AM, Chris Rees wrote:
> On 10 Aug 2011 13:53, "Julian H. Stacey"<jhs at berklix.com>  wrote:

>> Personaly, I'd think an acceptable middle course could be to switch to
>> whatever reduces the CTM bandwidth the most&  put a note in man ctm:
>>         "If running FreeBSD-x or earlier you need to
>>          cd /usr/ports/archivers/xz ; make install"
>>
>
> How does a manpage entry help? It'll only appear on later versions, where
> It's irrelevant, and not appear on earlier versions, where it would help!
> Perhaps a note could be put into the Handbook entry?


How about a much more helpful message from ctm if xz isn't available? 
One that gives the message that Julian was considering putting into man ctm?

(By the way, if ctm.c gets MFC'ed to earlier versions, so will ctm.1. 
The problem will be created only if xz is not MFC'ed to earlier versions.)

Stephen