revise a couple of recent changes

include/.gitignore should continue to ignore old files in case
someone checks out an older version, builds, then checks out the
current version without running 'make spotless' first.

sys/unix/Makefile.utl:  tiletxt.o depends on tilemap.c in addition
to tiletxt.c.

include/.gitignore

@@ -1,5 +1,17 @@
-.cvsignore
+# generated at build time so not managed by git
+nhlua.h
+# obsolete but still built by 'makedefs' in conjunction with dat/options for
+# potential use by old port-specific code that isn't being actively maintained
 date.h
+# obsolete but can still be built by 'makedefs' for reference purposes
 onames.h
 pm.h
-nhlua.h
+# these are obsolete--or now reside elsewhere--but are still listed here to be
+# ignored in case the directory contains remnants of building an older version
+dgn_comp.h
+lev_comp.h
+vis_tab.h
+tile.h
+win32api.h
+# really obsolete...
+.cvsignore

sys/unix/Makefile.utl

@@ -319,7 +319,7 @@ tilemap: tilemap.o $(OBJDIR)/objects.o $(OBJDIR)/monst.o $(OBJDIR)/drawing.o
 
 tiletext.o: ../win/share/tiletext.c $(CONFIG_H) ../win/share/tile.h
 	$(CC) $(CFLAGS) -I../win/share -c ../win/share/tiletext.c -o $@
-tiletxt.o: ../win/share/tiletxt.c $(HACK_H)
+tiletxt.o: ../win/share/tiletxt.c ../win/share/tilemap.c $(HACK_H)
 	$(CC) $(CFLAGS) -I../win/share -c ../win/share/tiletxt.c -o $@
 tilemap.o: ../win/share/tilemap.c $(HACK_H)
 	$(CC) $(CFLAGS) -c ../win/share/tilemap.c -o $@