[Aboriginal] toolchains

[scsijon]

>
> Also, I might want to make an external toolchain building project that
> does newer toolchains. I wouldn't distribute binaries of those (GPLv3 is
> a proprietary license I don't want to get on me) but buildroot
> deprecated and _removed_ its native toolchain code, and crosstool-ng
> apparently decided not to go there, and aboriginal needs BOTH cross and
> native toolchains to do its thing, so...

might be worth having a quick look at how T2 does theirs in building T2 
then, as they can go down 9 layers (although usually only 5 or 7 are 
needed) of toolchain to do both.