On Thu, 2012-05-03 at 13:39 +0200, Koen Kooi wrote: > Op 3 mei 2012, om 13:24 heeft Richard Purdie het volgende geschreven: > > The whole point with the qemu emulated machines is that you build them > > and they work for new users easily and efficiently. I don't think > > calling bitbake to build them and force the user into another wait is a > > good usability model to be promoting. > > OE-core should set the right example and teaching people that a global > IMAGE_DEPENDS is OK is not the right example. Especially when it > actually causes breakage, see below. > If people insist that IMAGE_DEPENDS is the one and only way to provide > the runqemu experience then at least put a big comment in the file > saying why it's done and why people shouldn't be copy/pasting it into > their layers. > And an indiciation where the line is drawn would be nice as well, I > can imagine that someone wants to add amazon EC2 support to runqemu > and sends a patch to add the EC2 tools to IMAGE_DEPENDS.
I'm happy to see a comment. The line is quite clear, the documentation associated with the qemu images, the quick start guide and other manuals assume we build qemu-native and friends and for usability this is a clear win. The manuals do not document EC2 and it is not something we expect a new user to need to do easily. Running an extra "bitbake xxx" or including an extra configuration file would be perfectly reasonable for those usage scenarios. > > I'm also slightly bemused that in previous discussions you've implied > > build time is less relevant then functionality yet here you're taking > > the opposite stance :). > > I get build *failures* for the qemu machines because I don't have mesa > and sdl installed on the autobuilder. But you are right, I do think > build time is less relevant than functionality. We should also consider setting up PACKAGECONFIG options in the qemu recipe for these things so you can specify to build qemu-native without sdl/gl easily. I appreciate that is going to be pretty nasty implementation wise but I think it would help and in fact if someone files the bug I'll mark it as a P1 for 1.3 since that does help usability a lot. Cheers, Richard _______________________________________________ Openembedded-core mailing list [email protected] http://lists.linuxtogo.org/cgi-bin/mailman/listinfo/openembedded-core
