diff --git a/status/Makefile b/status/Makefile
index b30efc9..9574e30 100644
--- a/status/Makefile
+++ b/status/Makefile
@@ -1,13 +1,19 @@
 CFLAGS += -g
 
+.PHONY: run
 run: status
 	./status
 
+.PHONY: cleanall
+cleanall: clean
+	rm -f order.c settings.c
+
+.PHONY: clean
 clean:
 	rm -f status *.o
 
 status: status.c order.c libio.o libkeyval.o
-	$(CC) $(CFLAGS) -o $@ $@.c libio.o libkeyval.o
+	time $(CC) $(CFLAGS) -o $@ $@.c libio.o libkeyval.o
 
 order.c: order.def.c
 	- cp -v order.def.c $@
diff --git a/status/README b/status/README
index 7efbb8d..acbe5cc 100644
--- a/status/README
+++ b/status/README
@@ -4,3 +4,10 @@
 /__/ /_//_//_//_/  /__/ /__/   2025 DTB. Public Domain.
 
 build: $ make
+
+libio.c, libio.h:         libio, a wrapper around I/O functions for status(1)
+libkeyval.c, libkeyval.h: libkeyval, a key/value system for status(1)
+*.def.c:                  the default for foo.c, a configuration file #included
+                          directly in a source-file
+mod_*.c:                  modules to be #included directly in status.h
+status.c:                 main() and boilerplate