Port vagrant-libvirt to AlmaLinux 8

- Define vagrant plugin macros inline (not available on EL)
- Inline gem install instead of %vagrant_plugin_install macro
- Use old-style %patch0 syntax for RPM 4.14 compatibility
- Replace Recommends with Suggests

vagrant-libvirt.spec

@@ -56,7 +56,8 @@ Requires: rubygem(xml-simple)
 # Vagrant changed packaging scriptlets in version 1.9.1.
 Requires: vagrant >= 1.9.1
 # Required by "vagrant package" command (rhbz#1292217).
-Recommends: %{_bindir}/virt-sysprep
+# EL8 supports weak deps but use Suggests for broader compat
+Suggests: %{_bindir}/virt-sysprep
 BuildRequires: vagrant >= 1.9.1
 BuildRequires: rubygem(bundler)
 BuildRequires: rubygem(diffy)
@@ -87,12 +88,12 @@ Documentation for %{name}.
 %prep
 %setup -q -n %{vagrant_plugin_name}-%{version} -b 1
 
-%patch 0 -p1
-%patch 1 -p1
-%patch 2 -p1
-%patch 3 -p1
-%patch 4 -p1
-%patch 100 -p1
+%patch0 -p1
+%patch1 -p1
+%patch2 -p1
+%patch3 -p1
+%patch4 -p1
+%patch100 -p1
 
 %build
 gem build ../%{vagrant_plugin_name}-%{version}.gemspec
@@ -121,7 +122,7 @@ pushd ../vagrant-spec-%{vagrant_spec_commit}
 # Remove the git reference, which is useless in our case.
 sed -i '/git / s/^/#/' vagrant-spec.gemspec
 
-# Relax the dependencies, since Fedora ships with newer versions.
+# Relax the dependencies, since we may ship with newer versions.
 sed -i '/thor/ s/~>/>=/' vagrant-spec.gemspec
 sed -i '/rspec/ s/~>/>=/' vagrant-spec.gemspec
 popd
@@ -173,10 +174,11 @@ popd
 %{vagrant_plugin_instdir}/spec
 
 %changelog
-* Sat Mar 08 2026 Ryosuke Nakayama <ryosuke.nakayama@ryskn.com> - 0.11.2-8.el10
-- Port to AlmaLinux 10
+* Sat Mar 08 2026 Ryosuke Nakayama <ryosuke.nakayama@ryskn.com> - 0.11.2-8.el8
+- Port to AlmaLinux 8
 - Define vagrant plugin macros inline
-- Inline gem install instead of %%vagrant_plugin_install macro
+- Use old-style %%patch syntax for RPM 4.14 compatibility
+- Replace Recommends with Suggests
 
 * Mon Nov 03 2025 Vít Ondruch <vondruch@redhat.com> - 0.11.2-8
 - Fix compatibility with REXML 3.4.2+