Speed up build phase with "make -j"

[js]

On 10/28/07, Bryan Blackburn <blb at macports.org> wrote:
> There is the 'buildmakejobs' option in /opt/local/etc/macports/
> macports.conf which should be passing a '-j #' to make, though I
> personally haven't tried it.

I didn't know that. I'll try.
But port(1) and macports.conf(5) don't have
any information about buildmakejobs
$ man -P cat port | grep buildmakejobs
$ man -P cat macports.conf | grep buildmakejobs

Any chance to add the information to man page?