From 01bb6978b6389852c5259b135af45ecdfe9f42f8 Mon Sep 17 00:00:00 2001
From: Behdad Esfahbod <behdad@behdad.org>
Date: Wed, 6 Aug 2014 12:23:24 -0400
Subject: [PATCH] Fix assertion failure

https://bugs.freedesktop.org/show_bug.cgi?id=82220
https://bugs.freedesktop.org/show_bug.cgi?id=82228
---
 src/fcweight.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/fcweight.c b/src/fcweight.c
index c62f807..313f3f2 100644
--- a/src/fcweight.c
+++ b/src/fcweight.c
@@ -45,7 +45,7 @@ static int lerp(int x, int x1, int x2, int y1, int y2)
 {
   int dx = x2 - x1;
   int dy = y2 - y1;
-  assert (dx > 0 && dy > 0 && x1 <= x && x <= x2);
+  assert (dx > 0 && dy >= 0 && x1 <= x && x <= x2);
   return y1 + (dy*(x-x1) + dx/2) / dx;
 }