--- ./tests/test_util.py_orig	2025-07-28 02:12:01.703289061 -0400
+++ ./tests/test_util.py	2025-07-28 02:15:19.688175078 -0400
@@ -15,7 +15,7 @@
 
 def cpp_supported():
     """Is cpp (the C preprocessor) supported as a native command?"""
-    return platform.system() == 'Linux'
+    return platform.system() == 'Linux' or platform.system() == 'AIX'
 
 
 def cpp_path():