https://bugzilla.redhat.com/show_bug.cgi?id=828130
--- Comment #2 from Chris Cowley chris@chriscowley.me.uk --- Nope this was a clean install the other day, I have not got any self-built packages on it. I do not have libffi6 installed either, nor is it available to me in the repositories. The only 3rd party repos I have enabled are RPMFusion, from which I have installed a couple of video related bits. I do not see how that can be related - hell I haven't even installed the akmod-nvidia this time (congratulations Nouveau guys, the performance is finally really good).
chris@paul:~$ rpm -qa | grep libffi libffi-3.0.10-2.fc17.x86_64 libffi-devel-3.0.10-2.fc17.x86_64
I do not do anything clever with this PC, it is the family one. My rpm queries match yours as well:
chris@paul:~$ rpm -q pandoc pandoc-1.8.2.1-8.fc17.x86_64
chris@paul:~$ rpm -q --requires pandoc | grep libffi libffi.so.5()(64bit)
chris@paul:~$ rpm -ql libffi.x86_64 /usr/lib64/libffi.so.5 /usr/lib64/libffi.so.5.0.10 /usr/share/doc/libffi-3.0.10 /usr/share/doc/libffi-3.0.10/LICENSE /usr/share/doc/libffi-3.0.10/README
I am very surprised that you would close this as not a bug - looks like a bug to me, and if I closed an issue with no resolution in my day job my colleagues would not be happy.