dnl 2.50 is the major breakpoint between the old autoconf and the new,
dnl so require that. If there are bug reports about 2.50-2.52 not working
dnl we can always move this up a little.
dnl 2.50 is the major breakpoint between the old autoconf and the new,
dnl so require that. If there are bug reports about 2.50-2.52 not working
dnl we can always move this up a little.