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 3af3ff4..9a6f57a 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -1280,6 +1280,7 @@
 Paul Swartz
 Thenault Sylvain
 Péter Szabó
+John Szakmeister
 Amir Szekely
 Arfrever Frehtes Taifersar Arahesis
 Hideaki Takahashi