For openSUSE Tumbleweed run the following as root:
zypper addrepo https://download.opensuse.org/repositories/server:SOGo:Test/openSUSE_Tumbleweed/server:SOGo:Test.repo
zypper refresh
zypper install libffi6
For openSUSE Leap 42.3 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/server:SOGo:Test/openSUSE_Leap_42.3/server:SOGo:Test.repo
zypper refresh
zypper install libffi6
For openSUSE Leap 42.2 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/server:SOGo:Test/openSUSE_Leap_42.2/server:SOGo:Test.repo
zypper refresh
zypper install libffi6
For openSUSE Leap 42.1 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/server:SOGo:Test/openSUSE_Leap_42.1/server:SOGo:Test.repo
zypper refresh
zypper install libffi6
For openSUSE Leap 15.2 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/server:SOGo:Test/openSUSE_Leap_15.2/server:SOGo:Test.repo
zypper refresh
zypper install libffi6
For openSUSE Factory run the following as root:
zypper addrepo https://download.opensuse.org/repositories/server:SOGo:Test/openSUSE_Factory/server:SOGo:Test.repo
zypper refresh
zypper install libffi6
For 15.6 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/server:SOGo:Test/15.6/server:SOGo:Test.repo
zypper refresh
zypper install libffi6
For 15.5 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/server:SOGo:Test/15.5/server:SOGo:Test.repo
zypper refresh
zypper install libffi6
For 15.4 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/server:SOGo:Test/15.4/server:SOGo:Test.repo
zypper refresh
zypper install libffi6
For 15.3 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/server:SOGo:Test/15.3/server:SOGo:Test.repo
zypper refresh
zypper install libffi6