From 05d5d3cd63ba2fadfdb62190dd24ef80ee3df40c Mon Sep 17 00:00:00 2001
From: Behdad Esfahbod <behdad@behdad.org>
Date: Mon, 25 Feb 2013 23:57:51 -0500
Subject: [PATCH] Fix "comparison between signed and unsigned" warnings

Patch from Jonathan Kew.
---
 src/hb-open-type-private.hh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/hb-open-type-private.hh b/src/hb-open-type-private.hh
index b337ab7b4..cec7bd6a0 100644
--- a/src/hb-open-type-private.hh
+++ b/src/hb-open-type-private.hh
@@ -411,7 +411,7 @@ struct hb_serialize_context_t
   template <typename Type>
   inline Type *allocate_size (unsigned int size)
   {
-    if (unlikely (this->ran_out_of_room || this->end - this->head < size)) {
+    if (unlikely (this->ran_out_of_room || this->end - this->head < ptrdiff_t (size))) {
       this->ran_out_of_room = true;
       return NULL;
     }