Speed up build phase with "make -j"

[Vincent Lefevre]

On 2007-10-31 15:57:56 +0100, Markus Weissmann wrote:
> So the discussion has narrowed to:
> 1.) disabled by default on an "per-installation" option:
> Can be toggled system-wide (with default "off"); ports have to actively 
> deny a parallel build attempt;
>
> 2.) disabled by default on a per-port option
> Can be toggled system-wide (with default ?); ports have to actively declare 
> to be build-able in parallel;

Portfiles should be able to say that they support a parallel build and
that they don't support a parallel build, i.e. you have 3 possibilities:
"yes" (which can later be changed to "no" if someone finds that it
doesn't work on some particular machine), "no" (that could be changed
to "yes" once the bug has been fixed upstream), and "don't know".

-- 
Vincent Lefèvre <vincent at vinc17.org> - Web: <http://www.vinc17.org/>
100% accessible validated (X)HTML - Blog: <http://www.vinc17.org/blog/>
Work: CR INRIA - computer arithmetic / Arenaire project (LIP, ENS-Lyon)