Bug#793998: apophenia: FTBFS: tests fail on certain architectures

[Aaron M. Ucko]

Source: apophenia
Version: 0.999b+ds3-2
Severity: serious
Justification: fails to build from source

Builds of apophenia fail for several architectures with test suite
errors, as follows:

* distribution_tests fails on *i386 and ppc64el.
* ../eg/test_updating fails on arm64, (traditional) powerpc, and s390x.
* s390x has one other failed test: ../eg/t_test_by_rows.

The logs have no further details, but FTR, you can find them at
https://buildd.debian.org/status/logs.php?pkg=apophenia&ver=0.999e%2Bds-1

Could you please take a look?

Thanks!