honor nosetarch all the way

Created by: holymonson

Fix nosetarch support which is honored by arch-nspawn and mkarchroot but not archbuild or makechrootpkg.

why shouldn't the architecture being set? The general workflow would be to have an appropriate wrapped that respects the correct CARCH you want to have via a makepkg.conf and distribute it as makepkg-{repo}-{arch}.conf". This can then be used from an appropriate wrapper like extra-arm64-build

Created by: holymonson

setarch on x86_64 couldn't recognise ARM architecture, and that why nosetarch was introduced at https://github.com/archlinux/devtools/commit/5b9c06d275dd1a2dca09514e39f853bd9c57be3a .

That makes sense for dedicated chroots, but if you are using them through the archbuild chain anyway, you have your own wrapper. Won't it work equally by just having an appropriate makepkg-{repo}-{arch}.conf that has an empty CARCH? That doesn't require to forcefully always pass -s to make things work. This may need tiny adjustments in archbuild.in exclusively. PS: Please also change the completion files when adjusting options.

Created by: holymonson

We can't empty CARCH in makepkg-{repo}-{arch}.conf because libmakepkg and some PKGBUILDs will use it. But you do enlighten me that we could check CARCH first. Please see #43.

I would prefere #43 as that doesn't require special calls to a archbuild symlink target but just a clean invocation. If you believe that solves the requirements for arm builds, please close this issue

restored source branch github/fork/holymonson/qemu