https://bugzilla.redhat.com/show_bug.cgi?id=1258572
--- Comment #11 from Jan Kratochvil jan.kratochvil@redhat.com --- %defattr is really listed as obsolete: https://fedoraproject.org/wiki/Packaging:Guidelines#File_Permissions
I agree with Sergio that (these) shlibs should not have +x but I also agree with Ralf (almost) all the Fedora shlibs do use +x.
So I have removed both %attr and %defattr and the shlibs are +x now.