Para openSUSE Tumbleweed execute o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/home:fsirl:doxygen-libclang/openSUSE_Tumbleweed/home:fsirl:doxygen-libclang.repo
zypper refresh
zypper install doxygen
Para 16.0 execute o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/home:fsirl:doxygen-libclang/16.0/home:fsirl:doxygen-libclang.repo
zypper refresh
zypper install doxygen
Para 15.7 execute o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/home:fsirl:doxygen-libclang/15.7/home:fsirl:doxygen-libclang.repo
zypper refresh
zypper install doxygen
Para 15.6 execute o seguinte como root:
zypper addrepo https://download.opensuse.org/repositories/home:fsirl:doxygen-libclang/15.6/home:fsirl:doxygen-libclang.repo
zypper refresh
zypper install doxygen