For openSUSE Tumbleweed run the following as root:
zypper addrepo https://download.opensuse.org/repositories/Publishing:TeXLive/openSUSE_Tumbleweed/Publishing:TeXLive.repo
zypper refresh
zypper install texlive-specs-c
For openSUSE Factory run the following as root:
zypper addrepo https://download.opensuse.org/repositories/Publishing:TeXLive/openSUSE_Factory/Publishing:TeXLive.repo
zypper refresh
zypper install texlive-specs-c
For 16.0 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/Publishing:TeXLive/16.0/Publishing:TeXLive.repo
zypper refresh
zypper install texlive-specs-c
For 15.6 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/Publishing:TeXLive/15.6/Publishing:TeXLive.repo
zypper refresh
zypper install texlive-specs-c