AM_CONDITIONAL(ENABLE_PPPOE_PLUGIN, test "yes" = "yes")
AM_CONDITIONAL(ENABLE_GTPU_PLUGIN, test "yes" = "yes")
AM_CONDITIONAL(ENABLE_IOAM_PLUGIN, test "yes" = "yes")
AM_CONDITIONAL(ENABLE_PPPOE_PLUGIN, test "yes" = "yes")
AM_CONDITIONAL(ENABLE_GTPU_PLUGIN, test "yes" = "yes")
AM_CONDITIONAL(ENABLE_IOAM_PLUGIN, test "yes" = "yes")