With pleasure, i like CRUX!
The first version missed HAVE_GETDTABLESIZE and HAVE_IOPRIO_SET so
it was not enough indeed.
Find attached a compressed git(1) format-patch, the nm(1) output
of the compiled result is "identical" to that of the version i got
from following the dpkg recipe of yours.
And i have registered at the Debian Package Tracker and subscribed
to dpkg updates, which makes me hope i get notifications on
release updates?  Is that enough?
Ciao,