PHP_ARG_ENABLE(cvsclient, whether to enable the CVS client stream wrapper,
[  --enable-cvsclient      Enable PHP cvs:// wrapper.])

if test "$PHP_CVSCLIENT" != "no"; then
  AC_DEFINE(WITH_CVSCLIENT, 1, [Whether you want the CVS client])
  PHP_NEW_EXTENSION(cvsclient, cvsclient.c,
	$ext_shared,,)
fi


syntax highlighted by Code2HTML, v. 0.9.1