rem: if (!gtk_xine_is_seekable (GTK_XINE(totem->gtx)))
add: if (gtk_xine_is_seekable (GTK_XINE(totem->gtx)) == FALSE)
context: totem_action_seek_relative (Totem *totem, int off_sec){	int oldsec,  sec;	if (!gtk_xine_is_seekable (GTK_XINE(totem->gtx)))		return;	if (totem->mrl == NULL)		return;	oldsec = gtk_xine_get_current_time (GTK_XINE(totem->gtx));	if ((oldsec + off_sec) < 0)		sec = 0;	else		sec = oldsec + off_sec;	gtk_xine_play (GTK_XINE(totem->gtx), 0, sec);	play_pause_set_label (totem, STATE_PLAYING);}