check-package does not like us overriding IPUTILS_NINFOD, so rework the logic to use unset (empty) for the positive case and explicitly test against 'n'. package/iputils/iputils.mk:51: conditional override of variable IPUTILS_NINFOD package/iputils/iputils.mk:56: conditional override of variable IPUTILS_NINFOD Signed-off-by: Peter Korsgaard <peter@korsgaard.com>