diff -r 000000000000 -r 6474c204b198 build/pymake/tests/include-regen3.mk
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/build/pymake/tests/include-regen3.mk	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,10 @@
+# make should make makefiles that it has rules for if they are
+# included
+-include test.mk
+
+all:
+	test "$(X)" = "1"
+	@echo "TEST-PASS"
+
+test.mk:
+	@echo "X = 1" > $@