/usr/share/aclocal/imlib.m4:9: warning: underquoted definition of AM_PATH_IMLIB
  run info '(automake)Extending aclocal'
  or see http://sources.redhat.com/automake/automake.html#Extending-aclocal /usr/share/aclocal/imlib.m4:167: warning: underquoted 
definition of AM_PATH_GDK_IMLIB /usr/share/aclocal/gtk.m4:7: warning: underquoted definition of AM_PATH_GTK 
/usr/share/aclocal/glib.m4:8: warning: underquoted definition of AM_PATH_GLIB /usr/share/aclocal/gdk-pixbuf.m4:12: warning: underquoted 
definition of AM_PATH_GDK_PIXBUF /usr/share/aclocal/audiofile.m4:12: warning: underquoted definition of AM_PATH_AUDIOFILE 
/usr/share/aclocal/aalib.m4:12: warning: underquoted definition of AM_PATH_AALIB configure.ac:31: error: Autoconf version 2.61 or 
higher is required configure.ac:31: the top level autom4te: /usr/bin/m4 failed with exit status: 63 aclocal: autom4te failed with exit 
status: 63 autoreconf: aclocal failed with exit status: 63