handle situation when _selinux_policy_version is not defined

[xsuchy]

No description provided.

[FrostyX]

The failed CI is because of #64

[praiskup]

This is interesting, I see this for the first time. Do we really want to depend on specific selinux-policy version, and rebuild anytime they bump it?

[xsuchy]

The rebuild would be needed only if the version of selinux is decreased. That will never happen.

[praiskup]

Ah,

$ rpm --eval %selinux_requires

Requires: selinux-policy >= 41.16 
BuildRequires: pkgconfig(systemd) 
BuildRequires: selinux-policy 
BuildRequires: selinux-policy-devel 
Requires(post): selinux-policy-base >= 41.16 
Requires(post): libselinux-utils 
Requires(post): policycoreutils 
%if 041 || 0 > 7
Requires(post): policycoreutils-python-utils 
%else 
Requires(post): policycoreutils-python 
%endif 

[xsuchy]

Updated. I intentionally left it in two commits, so it is visible the interaction and intention.

[praiskup]

It looks this macro is not yet finished :-( the %selinux_requires is not defined by redhat-rpm-config nor any other package in minimal buildroot. I reported this problem.

The docs are not updated: https://fedoraproject.org/wiki/SELinux/IndependentPolicy#Example_spec_file_changes_to_incorporate_-selinux_subpackage

IOW, we need to do:
BuildRequires: selinux-policy-devel
%{?selinux_requires}

[xsuchy]

Updated.

[praiskup]

LGTM