From 1f5100001f0d99064081ec9eb80b9d3340129f86 Mon Sep 17 00:00:00 2001
From: John Maddock <john@johnmaddock.co.uk>
Date: Thu, 18 Apr 2013 16:14:28 +0000
Subject: [PATCH] Apply patch from #8401. Fixes #8401.

[SVN r83957]
---
 include/boost/config/stdlib/libstdcpp3.hpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/include/boost/config/stdlib/libstdcpp3.hpp b/include/boost/config/stdlib/libstdcpp3.hpp
index c56dff22..976ab76b 100644
--- a/include/boost/config/stdlib/libstdcpp3.hpp
+++ b/include/boost/config/stdlib/libstdcpp3.hpp
@@ -35,7 +35,8 @@
 #  if defined(_GLIBCXX_HAVE_GTHR_DEFAULT) \
         || defined(_GLIBCXX__PTHREADS) \
         || defined(_GLIBCXX_HAS_GTHREADS) \
-        || defined(_WIN32)
+        || defined(_WIN32) \
+        || defined(_AIX)
       //
       // If the std lib has thread support turned on, then turn it on in Boost
       // as well.  We do this because some gcc-3.4 std lib headers define _REENTANT