version 1.80 of app-sci/units does not define au as astronomicalunit. This
appears to be because of major refactoring of the units.dat file between it and
the previous version; it looks like said definition was removed.
This is a major problem because a number of other units are defined in terms of
au's rather than astronomicalunits, so if you want to know how many attoparsecs
per microfortnight there are in a mile per hour, you can't because parsec is
defined in terms of au. :-)
This is easily fixed by patching in such a line in units.dat. (it is such a
trivial upstream issue, but units appears to lack an upstream maintainer...)
Reproducible: Always
Steps to Reproduce:
