From 9f67b924eb662f498f4e643ed740ce84640968f7 Mon Sep 17 00:00:00 2001
From: Behdad Esfahbod <behdad@behdad.org>
Date: Fri, 11 Jul 2014 12:05:45 -0400
Subject: Prevent HarfBuzz from using REPLACEMENT CHARACTER

Needed after this:
https://github.com/behdad/harfbuzz/commit/efe74214bbb68eaa3d7621e73869b5d58210107e
---
 modules/basic/basic-fc.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/modules/basic/basic-fc.c b/modules/basic/basic-fc.c
index 1ceaeabe..93c4478f 100644
--- a/modules/basic/basic-fc.c
+++ b/modules/basic/basic-fc.c
@@ -128,6 +128,12 @@ pango_fc_hb_font_get_glyph (hb_font_t *font, void *font_data,
     return TRUE;
 
   *glyph = PANGO_GET_UNKNOWN_GLYPH (unicode);
+
+  /* We draw our own invalid-Unicode shape, so prevent HarfBuzz
+   * from using REPLACEMENT CHARACTER. */
+  if (unicode > 0x10FFFF)
+    return TRUE;
+
   return FALSE;
 }
 
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