PHP_ARG_ENABLE([shmop],
  [whether to enable shmop support],
  [AS_HELP_STRING([--enable-shmop],
    [Enable shmop support])])

if test "$PHP_SHMOP" != "no"; then
  AC_DEFINE([HAVE_SHMOP], [1],
    [Define to 1 if the PHP extension 'shmop' is available.])
  PHP_NEW_EXTENSION([shmop], [shmop.c], [$ext_shared])
fi