File harfbuzz-reduce-max-nesting-level.patch of Package harfbuzz

From 613e630617074eb9b62b794cc37c9b42a7fb079b Mon Sep 17 00:00:00 2001
From: Behdad Esfahbod <behdad@behdad.org>
Date: Tue, 13 Oct 2015 23:33:28 -0300
Subject: [PATCH] Reduce max nesting level from 8 to 6

We probably should implement better system to catch cyclic lookups.
But for now, this speeds up worst case behavior with broken fonts
considerably without compromising legitimate usecases.

https://github.com/behdad/harfbuzz/issues/139#issuecomment-147788447
---
 src/hb-ot-layout-common-private.hh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/hb-ot-layout-common-private.hh b/src/hb-ot-layout-common-private.hh
index 6f818cb..ea61f5c 100644
--- a/src/hb-ot-layout-common-private.hh
+++ b/src/hb-ot-layout-common-private.hh
@@ -44,7 +44,7 @@ namespace OT {
 
 
 #define NOT_COVERED		((unsigned int) -1)
-#define MAX_NESTING_LEVEL	8
+#define MAX_NESTING_LEVEL	6
 #define MAX_CONTEXT_LENGTH	64
 
 
-- 
2.6.6