Apply Gears modifications to zlib to our copy, so we're both using the same...

third_party/zlib/zutil.c

 /* zutil.c -- target dependent utility functions for the compression library
  * Copyright (C) 1995-2005 Jean-loup Gailly.
  * For conditions of distribution and use, see copyright notice in zlib.h
  */
 
 /* @(#) $Id: zutil.c,v 3.11 2005/08/04 19:14:14 tor%cs.brown.edu Exp $ */
 
 #include "zutil.h"
 
 #ifndef NO_DUMMY_DECL
@@ skipping 123 matching lines @@
     int err;
 {
     return ERR_MSG(err);
 }
 
 #if defined(_WIN32_WCE)
     /* The Microsoft C Run-Time Library for Windows CE doesn't have
      * errno.  We define it as a global variable to simplify porting.
      * Its value is always 0 and should not be used.
      */
-    int errno = 0;
+    // Google Gears modification: zutil.h defines errno as z_errno for WinCE.
+    //int errno = 0;
+    int z_errno = 0;  
 #endif
 
 #ifndef HAVE_MEMCPY
 
 void zmemcpy(dest, source, len)
     Bytef* dest;
     const Bytef* source;
     uInt  len;
 {
     if (len == 0) return;
@@ skipping 154 matching lines @@
 
 void  zcfree (opaque, ptr)
     voidpf opaque;
     voidpf ptr;
 {
     free(ptr);
     if (opaque) return; /* make compiler happy */
 }
 
 #endif /* MY_ZCALLOC */