Для openSUSE Tumbleweed запустите от имени root:
zypper addrepo https://download.opensuse.org/repositories/X11:xfce/openSUSE_Tumbleweed/X11:xfce.repo
zypper refresh
zypper install libxfce4windowing
Для openSUSE Slowroll запустите от имени root:
zypper addrepo https://download.opensuse.org/repositories/X11:xfce/openSUSE_Slowroll/X11:xfce.repo
zypper refresh
zypper install libxfce4windowing
Для openSUSE Factory запустите от имени root:
zypper addrepo https://download.opensuse.org/repositories/X11:xfce/openSUSE_Factory/X11:xfce.repo
zypper refresh
zypper install libxfce4windowing
Для 16.0 запустите от имени root:
zypper addrepo https://download.opensuse.org/repositories/X11:xfce/16.0/X11:xfce.repo
zypper refresh
zypper install libxfce4windowing
Для 15.7 запустите от имени root:
zypper addrepo https://download.opensuse.org/repositories/X11:xfce/15.7/X11:xfce.repo
zypper refresh
zypper install libxfce4windowing
Для 15.6 запустите от имени root:
zypper addrepo https://download.opensuse.org/repositories/X11:xfce/15.6/X11:xfce.repo
zypper refresh
zypper install libxfce4windowing