https://bugzilla.redhat.com/show_bug.cgi?id=2254460
--- Comment #12 from Yaakov Selkowitz yselkowi@redhat.com --- (In reply to Fabio Valentini from comment #11)
*technically* the FPC has banned running thinkgs like %configure in %prep: https://pagure.io/packaging-committee/issue/1159
Not sure why this ticket was closed without actually making any changes to the guidelines.
%configure != autoreconf though.