From: Benjamin Peterson <benjamin@python.org>
Date: Sat, 15 Mar 2014 16:50:00 +0000 (-0500)
Subject: only define zero constant when it is used
X-Git-Tag: v3.4.1rc1~233^2~12^2
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=c77e7a4f233453a4e39fc7f61c72e6ef3877dcd1;p=python

only define zero constant when it is used
---

diff --git a/Modules/_math.c b/Modules/_math.c
index fe75a36ec5..a14ff0605f 100644
--- a/Modules/_math.c
+++ b/Modules/_math.c
@@ -22,7 +22,9 @@
 static const double ln2 = 6.93147180559945286227E-01;
 static const double two_pow_m28 = 3.7252902984619141E-09; /* 2**-28 */
 static const double two_pow_p28 = 268435456.0; /* 2**28 */
+#ifndef Py_NAN
 static const double zero = 0.0;
+#endif
 
 /* acosh(x)
  * Method :