Test for TARGET_API_MAC_CARBON with #if in stead of #ifdef.
diff --git a/Mac/Modules/icn/icnscan.py b/Mac/Modules/icn/icnscan.py
index c2af061..93d27d0 100644
--- a/Mac/Modules/icn/icnscan.py
+++ b/Mac/Modules/icn/icnscan.py
@@ -47,7 +47,7 @@
 
 	def makegreylist(self):
 		return [
-			('#ifndef TARGET_API_MAC_CARBON', [
+			('#if !TARGET_API_MAC_CARBON', [
 				'IconServicesTerminate',
 			])]