Issue #18256: Compilation fix for recent AIX releases. Patch by David Edelsohn.

diff --cc Misc/ACKS
Simple merge

diff --cc Misc/NEWS
index aa7692348b4859b23e37eec0da54ebe9351258be,d9b3f4e85185e3c692d225086be1d71d4df8a492..f1d6bf2e4d4803083afc92824e6da1bf168722bd
--- 1/Misc/NEWS
--- 2/Misc/NEWS
+++ b/Misc/NEWS
@@@ -537,11 -404,13 +537,14 @@@ IDL
  Build
  -----
  
 -- Issue #17550: Fix the --enable-profiling configure switch.
 -
 -IDLE
 --------
++- Issue #18256: Compilation fix for recent AIX releases.  Patch by
++  David Edelsohn.
+ 
 -- Issue #17625: In IDLE, close the replace dialog after it is used.
 +- Issue #17547: In configure, explicitly pass -Wformat for the benefit for GCC
 +  4.8.
  
 +- Issue #15172: Document NASM 2.10+ as requirement for building OpenSSL 1.0.1
 +  on Windows.
  
  What's New in Python 3.3.1 release candidate 1?
  ===============================================