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Message-ID: <1424853407.26813.29.camel@linuxfoundation.org>
From: Richard Purdie <richard.purdie@linuxfoundation.org>
To: "Robert P. J. Day" <rpjday@crashcourse.ca>
Date: Wed, 25 Feb 2015 08:36:47 +0000
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Cc: OE Core mailing list <openembedded-core@lists.openembedded.org>
Subject: Re: on current linux distros, what are potential candidates for ASSUME_PROVIDED?
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On Wed, 2015-02-25 at 03:25 -0500, Robert P. J. Day wrote:
>   for the sake of reducing build time in the classroom, what are some
> of the potential (and relatively safe) candidates to add to
> ASSUME_PROVIDED for a build from scratch?

This path is fraught with danger to be honest. There are some things
which are "safe" like subversion and git but they don't make that much
difference to a build and there are not as many as you'd think.

The biggest difference you can make is an sstate cache you share amongst
the pupils. The time is spent:

a) building gcc
b) building libc
c) building gettext
d) building glib

each of these is a bottle neck which then opens up a new set of targets
as none of them are ASSUME_PROVIDED material.

Cheers,

Richard