I'm not sure how the solution proposed in comment #1 would work: let's say we have an openbios-bootstrap_sparc.deb in the sparc Packages.gz, we could build-dep on openbios-bootstrap in another source package only enabled for Architecture: sparc, but we'd have to build the arch: all package in binary-arch: (as binary-indep is only called on i386, right?). That would be a bit ugly. Would Launchpad actually accept an _all package built during a binary-arch build?
Also, if we can actually build arch all packages in binary-arch, I don't think we need two source packages.
I'm not sure how the solution proposed in comment #1 would work: let's say we have an openbios- bootstrap_ sparc.deb in the sparc Packages.gz, we could build-dep on openbios-bootstrap in another source package only enabled for Architecture: sparc, but we'd have to build the arch: all package in binary-arch: (as binary-indep is only called on i386, right?). That would be a bit ugly. Would Launchpad actually accept an _all package built during a binary-arch build?
Also, if we can actually build arch all packages in binary-arch, I don't think we need two source packages.