diff -Naur a/Include/osdefs.h b/Include/osdefs.h
--- a/Include/osdefs.h	2014-03-18 00:07:32.781800000 +0400
+++ b/Include/osdefs.h	2014-03-18 00:08:08.817800000 +0400
@@ -17,7 +17,6 @@
 #define SEP L'\\'
 #define ALTSEP L'/'
 #endif
-#define MAXPATHLEN 256
 #define DELIM L';'
 #define DELIMSTR ";"
 #endif
diff -Naur a/Modules/main.c b/Modules/main.c
--- a/Modules/main.c	2014-03-17 06:31:31.000000000 +0400
+++ b/Modules/main.c	2014-03-18 00:08:08.817800000 +0400
@@ -9,7 +9,6 @@
 #include <windows.h>
 #ifdef HAVE_FCNTL_H
 #include <fcntl.h>
-#define PATH_MAX MAXPATHLEN
 #endif
 #endif
 
diff -Naur a/Python/pythonrun.c b/Python/pythonrun.c
--- a/Python/pythonrun.c	2014-03-18 00:07:32.797400000 +0400
+++ b/Python/pythonrun.c	2014-03-18 00:08:08.817800000 +0400
@@ -32,7 +32,6 @@
 #ifdef MS_WINDOWS
 #undef BYTE
 #include "windows.h"
-#define PATH_MAX MAXPATHLEN
 #endif
 
 _Py_IDENTIFIER(builtins);