From 58b80fee00d63ee50d629de6ad3bc9a3f079d07a Mon Sep 17 00:00:00 2001
From: Patrick McCarty <pnorcks@gmail.com>
Date: Sun, 13 Dec 2009 01:52:48 -0800
Subject: [PATCH] Pango: Skip glyph lookups for zero-width characters.

This silences warnings when a Unicode bidirectional character is found
in an input file, or any other zero-width character (for example, U+200D
zero-width joiner).
---
 lily/pango-font.cc | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/lily/pango-font.cc b/lily/pango-font.cc
index 644c21c433..ead47963e2 100644
--- a/lily/pango-font.cc
+++ b/lily/pango-font.cc
@@ -175,6 +175,10 @@ Pango_font::pango_item_string_stencil (PangoItem const *item,
       PangoGlyph pg = pgi->glyph;
       PangoGlyphGeometry ggeo = pgi->geometry;
 
+      /* For zero-width characters, do not perform a glyph lookup */
+      if (!ggeo.width)
+	continue;
+
       glyph_name[0] = '\0';
       if (has_glyph_names)
 	{
-- 
2.39.5