From 9da3acfb1942ef28424ea58068faf6ac3a3fc2c8 Mon Sep 17 00:00:00 2001
From: Edgar Toernig <froese@gmx.de>
Date: Sat, 30 Apr 2005 09:51:03 -0700
Subject: [PATCH] compat: support pre-1.2 zlib

Older zlib's don't have deflateBound()

diff --git a/cache.h b/cache.h
index e27429e..a10243d 100644
--- a/cache.h
+++ b/cache.h
@@ -17,6 +17,10 @@
 #include SHA1_HEADER
 #include <zlib.h>
 
+#if ZLIB_VERNUM < 0x1200
+#define deflateBound(c,s)  ((s) + (((s) + 7) >> 3) + (((s) + 63) >> 6) + 11)
+#endif
+
 /*
  * Basic data structures for the directory cache
  *
-- 
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