{Is,Set}AntiAliasedTextEnabled don't exist on MacOS 8.5.5 and earlier. For now: cop out and blacklist them.
diff --git a/Mac/Modules/fm/fmscan.py b/Mac/Modules/fm/fmscan.py
index 02f8ec2..6ade547 100644
--- a/Mac/Modules/fm/fmscan.py
+++ b/Mac/Modules/fm/fmscan.py
@@ -36,6 +36,11 @@
"AntiTextSetEnabled",
"AntiTextGetApplicationAware",
"AntiTextSetApplicationAware",
+ # These are tricky: they're not Carbon dependent or anything, but they
+ # exist only on 8.6 or later (both in Carbon and Classic).
+ # Disabling them is the easiest path.
+ 'SetAntiAliasedTextEnabled',
+ 'IsAntiAliasedTextEnabled',
]
def makegreylist(self):