需要 openSUSE Tumbleweed ，用 root 執行：
zypper addrepo https://download.opensuse.org/repositories/home:manfred-h:X11:xfce:4.20/openSUSE_Tumbleweed/home:manfred-h:X11:xfce:4.20.repo
zypper refresh
zypper install libxfce4windowing
需要 openSUSE Slowroll ，用 root 執行：
zypper addrepo https://download.opensuse.org/repositories/home:manfred-h:X11:xfce:4.20/openSUSE_Slowroll/home:manfred-h:X11:xfce:4.20.repo
zypper refresh
zypper install libxfce4windowing
需要 16.0 ，用 root 執行：
zypper addrepo https://download.opensuse.org/repositories/home:manfred-h:X11:xfce:4.20/16.0/home:manfred-h:X11:xfce:4.20.repo
zypper refresh
zypper install libxfce4windowing
需要 15.6 ，用 root 執行：
zypper addrepo https://download.opensuse.org/repositories/home:manfred-h:X11:xfce:4.20/15.6/home:manfred-h:X11:xfce:4.20.repo
zypper refresh
zypper install libxfce4windowing