IE_ADDING_THREAD
if ((ie->ie_flags & (IE_SOFT | IE_ADDING_THREAD)) != 0 ||
if (ie->ie_flags & IE_ADDING_THREAD) {
if (ie->ie_flags & IE_ADDING_THREAD)
ie->ie_flags |= IE_ADDING_THREAD;
ie->ie_flags &= ~IE_ADDING_THREAD;