[Debian-science-sagemath] name of arb library in Debian and adjustments needed

[Dima Pasechnik]

I've run into the fact that Debian ships an unusally named arb library
(libflint-arb.so rather than libarb.so)
on https://trac.sagemath.org/ticket/27270
and I wonder how to adjust the rest of Sage to use it.

Could you point me at the corresponding patch(es)?

Thanks,
Dima