***** autoconf *****

ac-wrapper: warning: invalid WANT_AUTOCONF '2.1'; ignoring.
build/autoconf/altoptions.m4:156: error: m4_defn: undefined macro: _m4_divert_diversion
build/autoconf/altoptions.m4:156: the top level
autom4te-2.61: /usr/bin/m4 failed with exit status: 1