diff -r 000000000000 -r 6474c204b198 build/pymake/tests/automatic-variables.mk
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/build/pymake/tests/automatic-variables.mk	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,79 @@
+$(shell \
+mkdir -p src/subd; \
+mkdir subd; \
+touch dummy; \
+sleep 2; \
+touch subd/test.out src/subd/test.in2; \
+sleep 2; \
+touch subd/test.out2 src/subd/test.in; \
+sleep 2; \
+touch subd/host_test.out subd/host_test.out2; \
+sleep 2; \
+touch host_prog; \
+)
+
+VPATH = src
+
+all: prog host_prog prog dir/
+	test "$@" = "all"
+	test "$<" = "prog"
+	test "$^" = "prog host_prog dir"
+	test "$?" = "prog host_prog dir"
+	test "$+" = "prog host_prog prog dir"
+	test "$(@D)" = "."
+	test "$(@F)" = "all"
+	test "$(<D)" = "."
+	test "$(<F)" = "prog"
+	test "$(^D)" = ". . ."
+	test "$(^F)" = "prog host_prog dir"
+	test "$(?D)" = ". . ."
+	test "$(?F)" = "prog host_prog dir"
+	test "$(+D)" = ". . . ."
+	test "$(+F)" = "prog host_prog prog dir"
+	@echo TEST-PASS
+
+dir/:
+	test "$@" = "dir"
+	test "$<" = ""
+	test "$^" = ""
+	test "$(@D)" = "."
+	test "$(@F)" = "dir"
+	mkdir $@
+
+prog: subd/test.out subd/test.out2
+	test "$@" = "prog"
+	test "$<" = "subd/test.out"
+	test "$^" = "subd/test.out subd/test.out2" # ^
+	test "$?" = "subd/test.out subd/test.out2" # ?
+	cat $<
+	test "$$(cat $<)" = "remade"
+	test "$$(cat $(word 2,$^))" = ""
+
+host_prog: subd/host_test.out subd/host_test.out2
+	@echo TEST-FAIL No need to remake
+
+%.out: %.in dummy
+	test "$@" = "subd/test.out"
+	test "$*" = "subd/test"              # *
+	test "$<" = "src/subd/test.in"       # <
+	test "$^" = "src/subd/test.in dummy" # ^
+	test "$?" = "src/subd/test.in"       # ?
+	test "$+" = "src/subd/test.in dummy" # +
+	test "$(@D)" = "subd"
+	test "$(@F)" = "test.out"
+	test "$(*D)" = "subd"
+	test "$(*F)" = "test"
+	test "$(<D)" = "src/subd"
+	test "$(<F)" = "test.in"
+	test "$(^D)" = "src/subd ."          # ^D
+	test "$(^F)" = "test.in dummy"
+	test "$(?D)" = "src/subd"
+	test "$(?F)" = "test.in"
+	test "$(+D)" = "src/subd ."          # +D
+	test "$(+F)" = "test.in dummy"
+	printf "remade" >$@
+
+%.out2: %.in2 dummy
+	@echo TEST_FAIL No need to remake
+
+.PHONY: all