Pour 15.6, exécutez en tant que root :
zypper addrepo https://download.opensuse.org/repositories/home:Leen-Meyer:devel:languages:ruby:extensions/15.6/home:Leen-Meyer:devel:languages:ruby:extensions.repo
zypper refresh
zypper install rubygem-abstract_method
Pour 15.5, exécutez en tant que root :
zypper addrepo https://download.opensuse.org/repositories/home:Leen-Meyer:devel:languages:ruby:extensions/15.5/home:Leen-Meyer:devel:languages:ruby:extensions.repo
zypper refresh
zypper install rubygem-abstract_method
Pour 15.4, exécutez en tant que root :
zypper addrepo https://download.opensuse.org/repositories/home:Leen-Meyer:devel:languages:ruby:extensions/15.4/home:Leen-Meyer:devel:languages:ruby:extensions.repo
zypper refresh
zypper install rubygem-abstract_method