The package rpms/opencv.git has added or updated architecture specific content in its spec file (ExclusiveArch/ExcludeArch or %ifarch/%ifnarch) in commit(s): http://pkgs.fedoraproject.org/cgit/rpms/opencv.git/commit/?id=e0a0df21c8b742....
Change: +%ifarch %{ix86} x86_64 %{arm}
Thanks.