IBF_ENABLED
ibe->ibe_flags &= ~IBF_ENABLED;
ibe->ibe_flags |= IBF_ENABLED;
if (!(IBF_ENABLED & ibe->ibe_flags))
printf("flags: %s%s%s\n", (flags & IBF_ENABLED) ? "ENABLED " : "",
xbe->xbe_flags |= IBF_ENABLED;