Steps to reproduce:
osc co openSUSE:Factory/qemu && cd $_
osc build --noservice --clean standard


Actual results:
using SOURCE_DATE_EPOCH with value 1709510400 as build time
error: Failed build dependencies:
       canokey-qemu-devel is needed by qemu-8.2.1-0.x86_64
       libxdp-devel is needed by qemu-8.2.1-0.x86_64
       pkgconfig(spice-protocol) >= 0.12.3 is needed by qemu-8.2.1-0.x86_64
       pkgconfig(spice-server) >= 0.12.5 is needed by qemu-8.2.1-0.x86_64
       xen-devel >= 4.2 is needed by qemu-8.2.1-0.x86_64
Powering off.
[   94.494179][ T3445] reboot: Power down


This likely has to do with these macros
%if 0%{with canokey}
BuildRequires:  canokey-qemu-devel
%endif

that are not properly parsed to provide the BuildRequires


# rpm -q osc build
osc-1.6.1-150500.403.1.noarch
build-20240221-150500.444.1.noarch
(both from openSUSE:Tools / 15.5)