1--- a/a/nss/lib/zlib/gzguts.h	2010-08-22 03:07:03.000000000 +0200
2+++ b/b/nss/lib/zlib/gzguts.h	2012-07-17 08:52:14.821552788 +0200
3@@ -26,6 +26,10 @@
4 #  define write _write
5 #  define close _close
6 #endif
7+
8+#ifndef _WIN32
9+#include <unistd.h>
10+#endif
11
12 #ifdef NO_DEFLATE       /* for compatibility with old definition */
13 #  define NO_GZCOMPRESS
14