Permit more options in the Makefile as to startup options

(closes issue #16454)
 Reported by: syspert
 Patches: 
       20091228__issue16454__3.diff.txt uploaded by tilghman (license 14)
 Tested by: syspert


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@239231 65c4cc65-6c06-0410-ace0-fbb531ad65f3