--- h5py-py3-2.3.1/lzf/lzf/lzf_c.c	2014-06-18 22:57:51.000000000 +0200
+++ h5py-py2-2.3.1/lzf/lzf/lzf_c.c	2014-09-25 21:37:54.438298600 +0200
@@ -121,7 +121,7 @@
    * special workaround for it.
    */
 #if ( defined (WIN32) && defined (_M_X64) ) || defined (_WIN64)
-  unsigned _int64 off; /* workaround for missing POSIX compliance */
+  unsigned long off;
 #else
   unsigned long off;
 #endif
