configure.in: s/AC_AIX/AC_USE_SYSTEM_EXTENSIONS/
diff --git a/configure b/configure
index ee73998..34a068e 100755
--- a/configure
+++ b/configure
@@ -1,5 +1,5 @@
#! /bin/sh
-# From configure.in Revision: 80964 .
+# From configure.in Revision: 80965 .
# Guess values for system-dependent variables and create Makefiles.
# Generated by GNU Autoconf 2.65 for python 2.7.
#
@@ -4685,7 +4685,6 @@
-
# Check for unsupported systems
case $ac_sys_system/$ac_sys_release in
atheos*|Linux*/1*)
diff --git a/configure.in b/configure.in
index a8448ec..2076f32 100644
--- a/configure.in
+++ b/configure.in
@@ -595,7 +595,7 @@
# checks for UNIX variants that set C preprocessor variables
-AC_AIX
+AC_USE_SYSTEM_EXTENSIONS
# Check for unsupported systems
case $ac_sys_system/$ac_sys_release in