diff -r 000000000000 -r 6474c204b198 build/pymake/tests/subprocess-path.mk
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/build/pymake/tests/subprocess-path.mk	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,32 @@
+#T gmake skip
+#T grep-for: "2f7cdd0b-7277-48c1-beaf-56cb0dbacb24"
+
+ifdef __WIN32__
+PS:=;
+else
+PS:=:
+endif
+
+export PATH := $(TESTPATH)/pathdir$(PS)$(PATH)
+
+# Test two commands. The first one shouldn't go through the shell and the
+# second one should. The pathdir subdirectory has a Windows executable called
+# pathtest.exe and a shell script called pathtest. We don't care which one is
+# run, just that one of the two is (we use a uuid + grep-for to make sure
+# that happens).
+#
+# FAQ:
+# Q. Why skip GNU Make?
+# A. Because $(TESTPATH) is a Windows-style path, and MSYS make doesn't take
+#    too kindly to Windows paths in the PATH environment variable.
+#
+# Q. Why use an exe and not a batch file?
+# A. The use cases here were all exe files without the extension. Batch file
+#    lookup has broken semantics if the .bat extension isn't passed.
+#
+# Q. Why are the commands silent?
+# A. So that we don't pass the grep-for test by mistake.
+all:
+	@pathtest
+	@pathtest | grep -q 2f7cdd0b-7277-48c1-beaf-56cb0dbacb24
+	@echo TEST-PASS