Issue #1633863: Don't ignore $CC under AIX.
diff --git a/Misc/NEWS b/Misc/NEWS
index 1e6e954..9869af9 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -214,6 +214,8 @@
 Build
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+- Issue #1633863: Don't ignore $CC under AIX.
+
 - Issue #9552: Avoid unnecessary rebuild of OpenSSL. (Windows)
 
 - Issue #9810: Compile bzip2 source files in python's project file