tiletext.c warning suppression

sys/unix/Makefile.utl

@@ -521,7 +521,7 @@ tilemap: tilemap.o $(OBJDIR)/objects.o $(OBJDIR)/monst.o $(OBJDIR)/drawing.o \
 	./tilemap
 
 tiletext.o: ../win/share/tiletext.c $(CONFIG_H) ../win/share/tile.h
-	$(CC) $(CFLAGS) $(CSTD)  -I../win/share -c ../win/share/tiletext.c -o $@
+	$(CC) $(CFLAGS) $(NO_WARN_DISCARDED_QUALIFIERS) $(CSTD)  -I../win/share -c ../win/share/tiletext.c -o $@
 tiletxt.o: ../win/share/tiletxt.c ../win/share/tilemap.c $(HACK_H)
 	$(CC) $(CFLAGS) $(CSTD) -I../win/share -c ../win/share/tiletxt.c -o $@
 tilemap.o: ../win/share/tilemap.c $(HACK_H)

sys/unix/hints/include/compiler.500

@@ -94,6 +94,7 @@ ifeq "$(GCCGTEQ9)" "1"
 # flags present in gcc version greater than or equal to 9 can go here
 CFLAGS+=-Wformat-overflow
 CFLAGS+=-Wmissing-parameter-type
+NO_WARN_DISCARDED_QUALIFIERS=-Wno-discarded-qualifiers
 endif   # GCC greater than or equal to 9
 #ifeq "$(GCCGTEQ11)" "1"
 CFLAGS+=-Wimplicit-fallthrough