gentoo-overlay/dev-libs/fribidi/files/fribidi-0.19.5-signedwarning.patch

From 78dc3af68ed0e1aafe54c176b28dadee66eb306c Mon Sep 17 00:00:00 2001
From: Behdad Esfahbod <behdad@behdad.org>
Date: Thu, 06 Dec 2012 17:17:53 +0000
Subject: Fix theoretically possible overflow

https://bugzilla.redhat.com/show_bug.cgi?id=884000
---
diff --git a/bin/fribidi-main.c b/bin/fribidi-main.c
index ac9e2ff..dd27f0d 100644
--- a/bin/fribidi-main.c
+++ b/bin/fribidi-main.c
@@ -519,7 +519,7 @@ main (
 				  idx++;
 				}
 #endif /* !FRIBIDI_MAIN_USE_ICONV_H */
-			    if (wid < 0 && idx > st + 1)
+			    if (wid < 0 && idx - st > 1)
 			      idx--;
 			    inlen = idx - st;
 
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