#11184: Fix large file support on AIX.
diff --git a/Misc/NEWS b/Misc/NEWS
index d7f79d2..093a126 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -18,6 +18,8 @@
- Issue #11222: Fix non-framework shared library build on Mac OS X.
+- Issue #11184: Fix large-file support on AIX.
+
- Issue #941346: Fix broken shared library build on AIX.
Documentation
diff --git a/configure b/configure
index 63fae0f..96747ff 100755
--- a/configure
+++ b/configure
@@ -1,5 +1,5 @@
#! /bin/sh
-# From configure.in Revision: 88426 .
+# From configure.in Revision: 88430 .
# Guess values for system-dependent variables and create Makefiles.
# Generated by GNU Autoconf 2.68 for python 3.2.
#
@@ -6414,6 +6414,13 @@
if test "$use_lfs" = "yes"; then
# Two defines needed to enable largefile support on various platforms
# These may affect some typedefs
+case $ac_sys_system/$ac_sys_release in
+AIX*)
+
+$as_echo "#define _LARGE_FILES 1" >>confdefs.h
+
+ ;;
+esac
$as_echo "#define _LARGEFILE_SOURCE 1" >>confdefs.h
diff --git a/configure.in b/configure.in
index 26d4f6c..6f4ffa5 100644
--- a/configure.in
+++ b/configure.in
@@ -1376,6 +1376,12 @@
if test "$use_lfs" = "yes"; then
# Two defines needed to enable largefile support on various platforms
# These may affect some typedefs
+case $ac_sys_system/$ac_sys_release in
+AIX*)
+ AC_DEFINE(_LARGE_FILES, 1,
+ [This must be defined on AIX systems to enable large file support.])
+ ;;
+esac
AC_DEFINE(_LARGEFILE_SOURCE, 1,
[This must be defined on some systems to enable large file support.])
AC_DEFINE(_FILE_OFFSET_BITS, 64,