Для openSUSE Tumbleweed запустите от имени root:
zypper addrepo https://download.opensuse.org/repositories/home:xenaphasia/openSUSE_Tumbleweed/home:xenaphasia.repo
zypper refresh
zypper install perl-Class-Mix
Для openSUSE Slowroll запустите от имени root:
zypper addrepo https://download.opensuse.org/repositories/home:xenaphasia/openSUSE_Slowroll/home:xenaphasia.repo
zypper refresh
zypper install perl-Class-Mix
Для 16.0 запустите от имени root:
zypper addrepo https://download.opensuse.org/repositories/home:xenaphasia/16.0/home:xenaphasia.repo
zypper refresh
zypper install perl-Class-Mix
Для 15.6 запустите от имени root:
zypper addrepo https://download.opensuse.org/repositories/home:xenaphasia/15.6/home:xenaphasia.repo
zypper refresh
zypper install perl-Class-Mix
Для 15.5 запустите от имени root:
zypper addrepo https://download.opensuse.org/repositories/home:xenaphasia/15.5/home:xenaphasia.repo
zypper refresh
zypper install perl-Class-Mix