Bug#997033: sfxr-qt: FTBFS on s390x

[Bastian Germann]

Package: sfxr-qt
Severity: important
Version: 1.3.0+git20210422-1

The build fails on s390x because of test fails:

test cases:  2 |  0 passed | 2 failed
assertions: 33 | 25 passed | 8 failed

https://buildd.debian.org/status/fetch.php?pkg=sfxr-qt&arch=s390x&ver=1.3.0%2Bgit20210422-1&stamp=1634207353

Same results on powerpc and ppc64, so I guess it is a big-endian issue.