-SUBDIRS = threads filesys
+SUBDIRS = threads userprog vm filesys
all::
@echo "Run 'make' in subdirectories $(SUBDIRS)."
distclean::
$(MAKE) clean
find . -name '*~' -exec rm '{}' \;
+
+TAGS::
+ etags --members `find . -name \*.[chS]`
+
+tags::
+ ctags -T `find . -name \*.[chS]`
+