use new C-coded version comparison program for bison and flex (bug #2058, with...

use new C-coded version comparison program for bison and flex (bug #2058, with different Makefile changes)


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@5731 65c4cc65-6c06-0410-ace0-fbb531ad65f3