scratch build on rawhide as of yesterday: koji.fedoraproject.org/koji/taskinfo?taskID=3996581 FTBFS on gcc mass rebuild: http://koji.fedoraproject.org/koji/buildinfo?buildID=289041
Debian has a patch. It didn't work for me. It's probably dependent on how file is working right now.
perl-File-LibMagic-0.96-6.fc17 has been submitted as an update for Fedora 17. https://admin.fedoraproject.org/updates/perl-File-LibMagic-0.96-6.fc17
Debian patches worked for me...
Package perl-File-LibMagic-0.96-6.fc17: * should fix your issue, * was pushed to the Fedora 17 testing repository, * should be available at your local mirror within two days. Update it with: # su -c 'yum update --enablerepo=updates-testing perl-File-LibMagic-0.96-6.fc17' as soon as you are able to. Please go to the following url: https://admin.fedoraproject.org/updates/FEDORA-2012-6467/perl-File-LibMagic-0.96-6.fc17 then log in and leave karma (feedback).
perl-File-LibMagic-0.96-6.fc17 has been pushed to the Fedora 17 stable repository. If problems still persist, please make note of it in this bug report.