Para SLE 12 SP3 execute o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/openSUSE:Tools/SLE_12_SP3/openSUSE:Tools.repo
zypper refresh
zypper install perl-XML-Structured
Para SLE 12 SP2 execute o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/openSUSE:Tools/SLE_12_SP2/openSUSE:Tools.repo
zypper refresh
zypper install perl-XML-Structured
Para SLE 12 SP1 execute o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/openSUSE:Tools/SLE_12_SP1/openSUSE:Tools.repo
zypper refresh
zypper install perl-XML-Structured
Para SLE 12 execute o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/openSUSE:Tools/SLE_12/openSUSE:Tools.repo
zypper refresh
zypper install perl-XML-Structured