Mozilla: hg as a collaboration tool

[Andrei Vermel]

> and mq assumes that touching all the files
> touched by all your patches is cheap (when it really can mean an
> hour of recompilation; and ccache doesn't help all that much since
> preprocessing, and the I/O needed to do it, is a significant part of
> compilation).

I am using this patch 
http://www.selenic.com/pipermail/mercurial/2007-July/013936.html 
to save and restore timestamps of files affected by mq, and it seems to work
fine for me.

Andrei