diff --git a/cleandir/GNUmakefile b/cleandir/GNUmakefile
new file mode 100644
index 0000000..a7ed228
--- /dev/null
+++ b/cleandir/GNUmakefile
@@ -0,0 +1,28 @@
+include GNUmakevars
+
+TARGETS = cleandir
+all: $(TARGETS)
+
+clean:
+	rm -f $(TARGETS) *.bak core foo bar baz *.ps
+
+distclean: clean
+	rm -f customize
+
+install: $(BINDIR) $(BINDIR)/cleandir
+
+%: %.pl customize
+	sh ./customize < $< > $@
+	chmod +x $@
+
+%: %.sh customize
+	sh ./customize < $< > $@
+	chmod +x $@
+
+customize: configure
+	sh ./configure
+
+$(SBINDIR):
+	mkdir -p $@
+
+include GNUmakerules