Bug#1127450: xsimd: many test errors on arm64

[Drew Parsons]

Source: xsimd
Followup-For: Bug #1127450
X-Debbugs-Cc: debian-arm at lists.debian.org
User: debian-arm at lists.debian.org
Usertags: arm64
Control: severity -1 important

Discussion in upstream issue #1232 indicated the problem was
introduced in upstream PR#1177.
But the problem is not resolved by PR#1241.

So debian patch arm_revert_PR1177.patch reverts PR#1177 allowing arm64
to build (pass tests) as before. Severity can therefore be reduced.

Still awaiting a proper resolution in #1232.