-SUBDIRS = threads userprog vm filesys
+BUILD_SUBDIRS = threads userprog vm filesys
all::
- @echo "Run 'make' in subdirectories $(SUBDIRS)."
+ @echo "Run 'make' in subdirectories: $(BUILD_SUBDIRS)."
@echo "This top-level make has only 'clean' targets."
+CLEAN_SUBDIRS = $(BUILD_SUBDIRS) examples
+
clean::
- for d in $(SUBDIRS) tests; do $(MAKE) -C $$d $@; done
+ for d in $(CLEAN_SUBDIRS); do $(MAKE) -C $$d $@; done
rm -f TAGS tags
distclean:: clean
find . -name '*~' -exec rm '{}' \;
-TAGS_SOURCES = `find \( -name tests -o -name build \) -prune -o -name \*.[chS] -print`
+TAGS_SUBDIRS = $(BUILD_SUBDIRS) devices lib
+TAGS_SOURCES = `find $(TAGS_SUBDIRS) -name \*.[chS] -print`
TAGS::
etags --members $(TAGS_SOURCES)