updating autoconf
updating autoconf

persmule/libsrtp,yarrcc/libsrtp-ios,cuijinquan/libsrtp,Distrotech/libsrtp,yarrcc/libsrtp-ios,cuijinquan/libsrtp,ksophocleous/libsrtp,yarrcc/libsrtp-ios,persmule/libsrtp,ksophocleous/libsrtp,Distrotech/libsrtp,cuijinquan/libsrtp,persmule/libsrtp