libffi6-32bit from spins:invis:common project
Select Your Operating System
Add repository and install manually
For openSUSE 13.1 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/spins:invis:common/openSUSE_13.1/spins:invis:common.repo zypper refresh zypper install libffi6-32bit