Does 32-bit arithmetic overflow mean arch incompatibility?

[Robin Gustafsson <robin@rgson.se>]

Hi mentors,

Does the possibility of arithmetic overflow on 32-bit systems mean
that the software is to be considered incompatible with 32-bit
architectures?

A package I'm working on has some test failures on 32-bit due to
overflows. I only maintain architecture-independent packages and I'm
not sure how this scenario would usually be treated.

Regards,
Robin