Sounds like a packaging bug, look on the Debian bug tracker if there is already one for this package...
There isn't. I actually checked there first. The thing is the Debian control file for libva
looks correct. The packaging documentation also doesn't mention any special syntax for dependencies with arch:all
. Which makes me think it's more apt related, but I will do a few proper web searches before reporting it.
OK, slightly more intelligent search and [url=https://wiki.debian.org/Multiarch/Implementation#Multi-Arch:_foreign_support_packages]Multi-Arch: foreign[/url] appears to be the answer. Which means the bug should be filed against libset-scalar-perl