I am testing the following proposed change to src/include/win-mac.h

diff -c -w -r1.30 win-mac.h
*** win-mac.h   2003/08/26 20:23:58     1.30
--- win-mac.h   2003/12/15 17:27:20
***************
*** 30,35 ****
--- 30,40 ----
  #define SIZEOF_LONG     4

  #include <windows.h>
+ #include <limits.h>
+
+ #ifndef SIZE_MAX    /* in case Microsoft defines max size of size_t */
+ #define SIZE_MAX UINT_MAX
+ #endif

  #ifndef KRB5_CALLCONV
  #  define KRB5_CALLCONV __stdcall