From a783840789c93add42e4d70fdb407eb4ad6e062e Mon Sep 17 00:00:00 2001
From: Behdad Esfahbod <behdad@behdad.org>
Date: Sat, 27 Jun 2020 22:23:59 -0700
Subject: [PATCH] Always round up

Fixes https://github.com/harfbuzz/harfbuzz/issues/2496
---
 configure.ac | 2 +-
 src/hb.hh    | 9 ++-------
 2 files changed, 3 insertions(+), 8 deletions(-)

diff --git a/configure.ac b/configure.ac
index 9fe75ed19..e933476ed 100644
--- a/configure.ac
+++ b/configure.ac
@@ -68,7 +68,7 @@ GTK_DOC_CHECK([1.15],[--flavour no-tmpl])
 ])
 
 # Functions and headers
-AC_CHECK_FUNCS(atexit mprotect sysconf getpagesize mmap isatty roundf)
+AC_CHECK_FUNCS(atexit mprotect sysconf getpagesize mmap isatty)
 AC_CHECK_HEADERS(unistd.h sys/mman.h stdbool.h)
 
 # Compiler flags
diff --git a/src/hb.hh b/src/hb.hh
index 3adca88ff..b798ef609 100644
--- a/src/hb.hh
+++ b/src/hb.hh
@@ -499,14 +499,9 @@ static_assert ((sizeof (hb_var_int_t) == 4), "");
 #define HB_VAR_ARRAY 1
 #endif
 
-static inline double
-_hb_roundf (float x)
-{
-  return x >= 0 ? floor ((double) x + .5) : ceil ((double) x - .5);
-}
-#ifndef HAVE_ROUNDF
+static inline float
+_hb_roundf (float x) { return floorf (x + .5f); }
 #define roundf(x) _hb_roundf(x)
-#endif
 
 /* Endian swap, used in Windows related backends */
 static inline uint16_t hb_uint16_swap (const uint16_t v)