PHP_ARG_ENABLE([calendar],
  [whether to enable calendar conversion support],
  [AS_HELP_STRING([--enable-calendar],
    [Enable support for calendar conversion])])

if test "$PHP_CALENDAR" = "yes"; then
  AC_DEFINE([HAVE_CALENDAR], [1],
    [Define to 1 if the PHP extension 'calendar' is available.])
  PHP_NEW_EXTENSION([calendar],
    [calendar.c dow.c french.c gregor.c jewish.c julian.c easter.c cal_unix.c],
    [$ext_shared])
fi