Gzip assumes 'unsigned long' is 32-bits wide and depends on this.

One thing Gzip does is implicitly by store the size of a file into an
'unsigned long' rather than  explicitly compute the remainder modulo 2^32
(see RFC 1952 section 2.3.1 "ISIZE").  Thus an extracted file size is
does not equal the original size (mod 2^32) for files larger than 4GB.

This manifests itself in errors such as:
	zcat: bigfile.gz: invalid compressed data--length error

PR:		66008, 66009
Submitted by:	Peter Losher <Peter_Losher@isc.org>
Patch by:	tjr

gnu/usr.bin/gzip/gzip.h

@@ -2,6 +2,8 @@
  * Copyright (C) 1992-1993 Jean-loup Gailly.
  * This is free software; you can redistribute it and/or modify it under the
  * terms of the GNU General Public License, see the file COPYING.
+ *
+ * $FreeBSD$
  */
 
 #if defined(__STDC__) || defined(PROTO)
@@ -41,9 +43,10 @@
 
 #define local static
 
-typedef unsigned char  uch;
-typedef unsigned short ush;
-typedef unsigned long  ulg;
+#include <stdint.h>
+typedef uint8_t uch;
+typedef uint16_t ush;
+typedef uint32_t  ulg;
 
 /* Return codes from gzip */
 #define OK      0