move io and keyval to libio and libkeyval

status/Makefile

@@ -6,17 +6,17 @@ run: status
 clean:
 	rm -f status *.o
 
-status: status.c order.c io.o keyval.o
-	$(CC) $(CFLAGS) -o $@ $@.c io.o keyval.o
+status: status.c order.c libio.o libkeyval.o
+	$(CC) $(CFLAGS) -o $@ $@.c libio.o libkeyval.o
 
 order.c: order.def.c
 	- cp -v order.def.c $@
 
-io.o: io.c io.h
-	$(CC) $(CFLAGS) -c -o $@ io.c
+libio.o: libio.c libio.h
+	$(CC) $(CFLAGS) -c -o $@ libio.c
 
-keyval.o: keyval.c keyval.h settings.c
-	$(CC) $(CFLAGS) -c -o $@ keyval.c
+libkeyval.o: libkeyval.c libkeyval.h settings.c
+	$(CC) $(CFLAGS) -c -o $@ libkeyval.c
 
 settings.c: settings.def.c
 	- cp -v settings.def.c $@