Issue #21311: Avoid exception in _osx_support with non-standard compiler
configurations.  Patch by John Szakmeister.
diff --git a/Misc/ACKS b/Misc/ACKS
index 40f7cbe..65d1adb 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -1281,6 +1281,7 @@
 Paul Swartz
 Thenault Sylvain
 Péter Szabó
+John Szakmeister
 Amir Szekely
 Arfrever Frehtes Taifersar Arahesis
 Hideaki Takahashi