[OpenWrt-Devel] Question Re: Sourceful SDK

Daniel Dickinson openwrt at daniel.thecshore.com
Fri Jan 8 03:14:38 EST 2016

Hi Felix,

I've been thinking about the sourceful SDK and have some ideas on how to 
implement, I just want to clarify one point:

Are you thinking the SDK should be like the buildroot where everything 
(including tools and toolchain) is built from source, or are you 
thinking tools and toolchain (but not kernel, because that introduces 
build_dir/staging_dir messiness) should be precompiled (so that the rest 
may be compiled without much in the way of external dependencies).

I'm actually think OpenWrt's build dependencies are light enough that it 
might make sense to do an entirely sourceful SDK, and completely skip 
pacakaging binaries (except for the option of downloading and including 
source archives).

With your recent target/linux commit this shouldn't cause any major 
headaches, and the SDK can already generate the Config.in placeholders 
that make sure both the base system and SDK are configured with the same 
settings (e.g for kernel compile).

Actually I have to review the SDK and figure out why the kernel is in 
the SDK in the first place (ImageBuilder those binaries are obviously 
required, but the SDK I'm not sure why they're there, or if I'm actually 
misremembering and there is no kernel in the SDK; if that is the case 
then the whole thing gets a lot easier).


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