After generating the Python file with definitions try to run it, so
we catch errors during the build process in stead of later during runtime.
diff --git a/Mac/Modules/ibcarbon/IBCarbonscan.py b/Mac/Modules/ibcarbon/IBCarbonscan.py
index c0dea7e..1f05217 100644
--- a/Mac/Modules/ibcarbon/IBCarbonscan.py
+++ b/Mac/Modules/ibcarbon/IBCarbonscan.py
@@ -17,6 +17,8 @@
 	scanner = IBCarbon_Scanner(input, output, defsoutput)
 	scanner.scan()
 	scanner.close()
+	print "=== Testing definitions output code ==="
+	execfile(defsoutput, {}, {})
 	print "--done scanning, importing--"
 	import IBCarbonsupport
 	print "done"