Jani writes: The D16 part was Debian/Ubuntu specific, IIRC we define hardfloat
in that particular variant (16 double registers) or we had a different naming
for some reason.
* Disable parallel install to fix races with missing directories
(Closes: #944493)
* Fix FTBFS with autoconf 2.71. Thanks to Matthias Klose for the patch
(Closes: #995036)
* Fix FTBFS with Sphinx 4.2.0 (Closes: #995429)