Description of problem:

Trying to use `dnf builddep` on the kernel package on a x86_64 system, the tool complains about a missing package:
-------- 8< ---------------- 8< ---------------- 8< ---------------- 8< --------

1. dnf builddep kernel-4.18.0-425.10.1.el8_7.src.rpm
   [...]
   No matching package to install: 'opencsd-devel >= 1.0.0-2'
   [...]
   • • • • • • • 8< ---------------- 8< ---------------- 8< ---------------- 8< --------

This package is used on aarch64 only, from the spec file:
-------- 8< ---------------- 8< ---------------- 8< ---------------- 8< --------
%ifarch aarch64
BuildRequires: opencsd-devel >= 1.0.0-2
%endif
-------- 8< ---------------- 8< ---------------- 8< ---------------- 8< --------

I then tried using global option `--forcearch=x86_64` but this doesn't help either.

Would it be possible to force using a specific arch and/or default to system's arch?

Version-Release number of selected component (if applicable):

dnf-4.7.0-11.el8.noarch

How reproducible:

Always, see above.