From 1dcdf9534bc8161f6529b3f0a780d1b9723f1640 Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Sat, 4 Nov 2017 12:43:15 +0530
Subject: [PATCH] ...

---
 README.asciidoc | 2 +-
 kitty/fonts.c   | 3 +++
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/README.asciidoc b/README.asciidoc
index b6d7d54b2..8ea66f358 100644
--- a/README.asciidoc
+++ b/README.asciidoc
@@ -86,7 +86,7 @@ the following dependencies are installed first.
 * zlib
 * libpng
 * fontconfig (not needed on macOS)
-* harfbuzz >= 1.0.5 
+* harfbuzz >= 1.5.0 
 * xsel (only on X11 systems with glfw < 3.3)
 * ImageMagick (optional, needed to use the `kitty icat` tool to display images in the terminal)
 * gcc or clang (required only for building)
diff --git a/kitty/fonts.c b/kitty/fonts.c
index 21e029d02..934f7e5d6 100644
--- a/kitty/fonts.c
+++ b/kitty/fonts.c
@@ -11,6 +11,9 @@
 #if HB_VERSION_MAJOR > 0 || (HB_VERSION_MAJOR == 0 && (HB_VERSION_MINOR > 9 || (HB_VERSION_MINOR == 9 && HB_VERSION_MICRO >= 42)))
 #define HARBUZZ_HAS_SET_CLUSTER_LEVEL
 #endif
+#if HB_VERSION_MAJOR < 1 || (HB_VERSION_MAJOR == 1 && (HB_VERSION_MINOR < 5))
+#define HB_GLYPH_FLAG_UNSAFE_TO_BREAK 1
+#endif
 
 #define MISSING_GLYPH 4