add bup: it backs things up - git + python for backups

[alx]

https://github.com/apenwarr/bup#readme

Talk planned during 28C3: http://events.ccc.de/congress/2011/Fahrplan/events/4587.en.html

[jacknagel]

Is there a stable tarball?

[alx]

formula update with stable tarball available on https://github.com/apenwarr/bup/tags

[jacknagel]

Build failures: https://gist.github.com/1700345

[adamv]

cc1: warnings being treated as errors needs to be turned off (-Werror) as gcc 4.2 will complain about arg formats.

[alx]

Would you have a formula example with how to do that?

I've checked on the wiki without success.

[jacknagel]

Probably need to pass CFLAGS=#{ENV.cflags} to make.

[alx]

new pull-request in #10208