From 0cf582865ecaafb68f42a85900b319c0da86c133 Mon Sep 17 00:00:00 2001
From: cgohlke <cgohlke@uci.edu>
Date: Sat, 29 Sep 2012 15:45:53 -0700
Subject: [PATCH] Fix: round function is not provided by libc.math on all
 platforms

---
 skimage/_shared/interpolation.pyx | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/skimage/_shared/interpolation.pyx b/skimage/_shared/interpolation.pyx
index 3150f41b..0922173d 100644
--- a/skimage/_shared/interpolation.pyx
+++ b/skimage/_shared/interpolation.pyx
@@ -2,7 +2,11 @@
 #cython: boundscheck=False
 #cython: nonecheck=False
 #cython: wraparound=False
-from libc.math cimport ceil, floor, round
+from libc.math cimport ceil, floor
+
+
+cdef inline int round(double r):
+    return <int>((r + 0.5) if (r > 0.0) else (r - 0.5))
 
 
 cdef inline double nearest_neighbour_interpolation(double* image, int rows,