From b9dcbb1f8312d8606b230f75594d40b7d4087004 Mon Sep 17 00:00:00 2001
From: Chun-wei Fan <fanchunwei@src.gnome.org>
Date: Mon, 12 Mar 2018 13:33:03 +0800
Subject: [PATCH] hb-private.hh: Add fallback implementation for round()

Add a simplistic round() implementation for our purposes, used when the
compiler does not support round() directly.
---
 src/hb-private.hh | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/src/hb-private.hh b/src/hb-private.hh
index daa496e9..62a103cf 100644
--- a/src/hb-private.hh
+++ b/src/hb-private.hh
@@ -1070,4 +1070,17 @@ struct hb_string_t
 };
 
 
+/* fallback for round() */
+#if !defined (HAVE_ROUND) && !defined (HAVE_DECL_ROUND)
+static inline double
+round (double x)
+{
+  if (x >= 0)
+    return floor (x + 0.5);
+  else
+    return ceil (x - 0.5);
+}
+#endif
+
+
 #endif /* HB_PRIVATE_HH */
-- 
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