Minor changes to reduce packaging changes made by the Fedora maintainer.

(closes issue #12974)
 Reported by: jcollie
 Patches: 
       0001-Don-t-override-duplicate-optimization-flags.patch uploaded by jcollie (license 412)


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@134312 65c4cc65-6c06-0410-ace0-fbb531ad65f3