This attempts to modify the various Makefiiles for the mextra changes.
Port teams should verify that the modifications are valid.
$(O)mkroom.o: mkroom.c $(HACK_H)
$(O)mon.o: mon.c $(HACK_H) $(INCL)\mfndpos.h
$(O)mondata.o: mondata.c $(HACK_H)
-$(O)monmove.o: monmove.c $(HACK_H) $(INCL)\mfndpos.h $(INCL)\artifact.h \
+$(O)monmove.o: monmove.c $(HACK_H) $(INCL)\mfndpos.h $(INCL)\artifact.h
$(O)monst.o: monst.c $(CONFIG_H) $(INCL)\permonst.h $(INCL)\align.h \
$(INCL)\monattk.h $(INCL)\monflag.h $(INCL)\monsym.h \
$(INCL)\dungeon.h $(INCL)\color.h