diff --git a/configure b/configure
index 9c9b974..4dd2332 100755
--- a/configure
+++ b/configure
@@ -1,5 +1,5 @@
 #! /bin/sh
-# From configure.in Revision: 83580 .
+# From configure.in Revision: 83986 .
 # Guess values for system-dependent variables and create Makefiles.
 # Generated by GNU Autoconf 2.65 for python 3.2.
 #
@@ -8745,6 +8745,10 @@
 $as_echo "#define HAVE_BROKEN_POSIX_SEMAPHORES 1" >>confdefs.h
 
 		       ;;
+      AIX/6)
+$as_echo "#define HAVE_BROKEN_POSIX_SEMAPHORES 1" >>confdefs.h
+
+                      ;;
       esac
 
       { $as_echo "$as_me:${as_lineno-$LINENO}: checking if PTHREAD_SCOPE_SYSTEM is supported" >&5