On IRC the request came on how src:zfs-linux Build-Depends on afflib,
hfsplus, so I thew it at $(reverse-depends). (Well, my query was in the
wrong direction but the problem still stands). reverse-depends knows
about the package and both the `-b` and `-x` option work, but not together.
paul@mulciber ~ $ reverse-depends src:zfs-linux -b
Reverse-Build-Depends
=====================
* py-libzfs (for libzfslinux-dev)
paul@mulciber ~ $ reverse-depends src:zfs-linux -x -d10
Reverse-Depends
===============
* python3-libzfs [amd64 arm64 armel armhf i386 mips64el ppc64el s390x]
* python3-libzfs [amd64 arm64 armel armhf i386 mips64el ppc64el s390x]
* sanoid (for zfsutils-linux)
* simplesnap (for zfsutils-linux)
* zfs-auto-snapshot (for zfsutils-linux)
* zfsnap (for zfsutils-linux)
* zsnapd (for zfsutils-linux)
Packages without architectures listed are reverse-dependencies in: all,
amd64, arm64, armel, armhf, i386, mips64el, ppc64el, s390x
paul@mulciber ~ $ reverse-depends src:zfs-linux -b -x -d10
b'<p>Unknown package</p>'
Paul