diff --git a/make/subtree.mk b/make/subtree.mk
new file mode 100644
index 00000000..2ad55916
--- /dev/null
+++ b/make/subtree.mk
@@ -0,0 +1,26 @@
+SUBTREE_OWNER ?= root
+SUBTREE_GROUP ?= root
+SUBTREE_MODE  ?= 0644
+SUBTREE_DIROWNER ?= root
+SUBTREE_DIRGROUP ?= root
+SUBTREE_DIRMODE  ?= 0755
+SUBTREE_INSTALL_PREFIX = /tmp/blah
+
+SUBTREE_DIRS = $(shell for f in `git ls-files . | sed 's%/[^/]\+$$%%' | sort -u | grep -v Makefile`; do if [ -d "$$f" ]; then echo $$f; fi; done)
+SUBTREE_FILES = $(shell for f in `git ls-files . | grep -v Makefile`; do if [ -f "$$f" ]; then echo $$f; fi; done)
+INSTALLED_SUBTREE_DIRS = $(addprefix $(SUBTREE_INSTALL_PREFIX)/,$(SUBTREE_DIRS))
+INSTALLED_SUBTREE_FILES = $(addprefix $(SUBTREE_INSTALL_PREFIX)/,$(SUBTREE_FILES))
+
+include $(MODDIR)/make/defs.mk
+
+all:
+install: $(INSTALLED_SUBTREE_DIRS) $(INSTALLED_SUBTREE_FILES)
+clean:
+distclean:
+
+$(INSTALLED_SUBTREE_DIRS):
+	@echo $(INSTALL) -d -o $(SUBTREE_DIROWNER) -g $(SUBTREE_DIRGROUP) -m $(SUBTREE_DIRMODE) $@
+
+$(SUBTREE_INSTALL_PREFIX)/%: %
+	@echo $(INSTALL) -o $(SUBTREE_OWNER) -g $(SUBTREE_GROUP) -m $(SUBTREE_MODE) $< $@
+