AC_DEFUN([SHAMROCK_CHECK_NUNIT],
[
	NUNIT_REQUIRED=2.4.7

	AC_ARG_ENABLE(tests, AC_HELP_STRING([--enable-tests], [Enable NUnit tests]),
		enable_tests=$enableval, enable_tests="no")

	if test "x$enable_tests" = "xno"; then
		do_tests=no
		AM_CONDITIONAL(ENABLE_TESTS, false)
	else
		PKG_CHECK_MODULES(NUNIT, nunit >= $NUNIT_REQUIRED,
			do_tests="yes", do_tests="no")

		AC_SUBST(NUNIT_LIBS)
		AM_CONDITIONAL(ENABLE_TESTS, test "x$do_tests" = "xyes")

		if test "x$do_tests" = "xno"; then
			PKG_CHECK_MODULES(NUNIT, mono-nunit >= 2.4,
				do_tests="yes", do_tests="no")

			AC_SUBST(NUNIT_LIBS)
			AM_CONDITIONAL(ENABLE_TESTS, test "x$do_tests" = "xyes")

			if test "x$do_tests" = "xno"; then
				AC_MSG_WARN([Could not find nunit: tests will not be available])			fi
		fi
	fi
])