On 08/20/2015 10:24 AM, Paul Millar wrote: > > The /usr/lib/rpm/redhat/macros file is supplied by the > redhat-rpm-config RPM, that the security update pulled in: > > [root@sisyphus ~]# rpm -qf /usr/lib/rpm/redhat/macros > redhat-rpm-config-9.0.3-44.sl6.noarch Paul, Thanks for the detail. Can you verify on 6.6 (or previous) that installing the 6.6 (non-patched) version of redhat-rpm-config also causes the defaults to be SL-5 incompatible? There are several relevant bugzillas for the redhat-rpm-config 'security' update, but probably the most relevant one is 1122100 ( direct link https://bugzilla.redhat.com/show_bug.cgi?id=1122100 ). This is upstream of SL, and apparently it is intentional, and so you'll need to file a bugzilla with redhat (or continue use the workaround you already found).