*** ./src/diff/diff.h.ORIG	Mon Oct 24 21:51:53 2011
--- ./src/diff/diff.h	Mon Oct 24 21:54:19 2011
***************
*** 27,33 ****
--- 27,44 ----
  
  #include <stdlib.h>
  #include <stddef.h>
+ #ifdef _AIX51
+ #include <inttypes.h>
+ #if (__64BIT__)
+ #define PTRDIFF_MIN     INT64_MIN
+ #define PTRDIFF_MAX     INT64_MAX
+ #else
+ #define PTRDIFF_MIN     INT32_MIN
+ #define PTRDIFF_MAX     INT32_MAX
+ #endif
+ #else
  #include <stdint.h>
+ #endif
  #include <limits.h>
  #include "static_assert.h"