[oe] Gumstix machine support

[Koen Kooi]

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Tom Cooksey schreef:
> Over the last few months I've been looking for an alternative to
> buildroot for the gumstix devices (www.gumstix.com). After giving up
> on Gentoo, I thought I'd have a go with OpenEmbedded. After reading
> through the documentation I realized what I needed to do was create a
> gumstix.conf in conf/machine, only to find one already there!
> 
> So my question is, how far along is gumstix support in OE and is it
> being supported/maintained? 

Till 30 minutes ago it was pretty broken :) It should build if you set DISTRO=angstrom-2007.1
Someone with more experience with gumstix hardware should have a look at MACHINE_FEATURES
and decide if we need a seperate configs for the different gumstix boards.

> I've had a good look through the
> gumstix.conf which is there and it all looks right (although I'm an
> uber OE newbie at the moment!)
> 
> Finally, the bitbake manual seems to neglect to mention the "?="
> operator in chapter 2. A kind chap on irc confirmed that ?= assigns a
> value to a variable if one has not already been set. 

Right

regards,

Koen

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