Test for --embedded mode.

Demos/embed/Makefile

 # Makefile for creating our standalone Cython program
-PYVERSION=2.3
-PYPREFIX=/usr
+PYVERSION=$(shell python -c "import sys; print sys.version[:3]")
+PYPREFIX=$(shell python -c "import sys; print sys.prefix")
 INCLUDES=-I$(PYPREFIX)/include/python$(PYVERSION)
 
 embedded: embedded.o
@@ -17,3 +17,7 @@ all: embedded
 clean:
 	@echo Cleaning Demos/embed
 	@rm -f *~ *.o *.so core core.* *.c embedded
+
+test: clean all
+	./embedded > test.output
+	python assert_equal.py embedded.output test.output

Demos/embed/assert_equal.py

+import sys
+if open(sys.argv[1]).read() != open(sys.argv[2]).read():
+    print "Files differ"
+    sys.exit(1)
+else:
+    print "Files identical"

Demos/embed/embedded.output

+__main__
+Hi, I'm embedded.