From: Tobias Oetiker <tobi@oetiker.ch>
Date: Mon, 10 Aug 2009 11:47:18 +0000 (+0000)
Subject: include math.h when testing IEEE
X-Git-Tag: 1.4.0~57
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=3b4fab1be96583d8b7a8d00983e8937918d971f8;p=thirdparty%2Frrdtool-1.x.git

include math.h when testing IEEE


git-svn-id: svn://svn.oetiker.ch/rrdtool/trunk/program@1887 a5681a0c-68f1-0310-ab6d-d61299d08faa
---

diff --git a/m4/acinclude.m4 b/m4/acinclude.m4
index f1b61192..c1e5c4bd 100644
--- a/m4/acinclude.m4
+++ b/m4/acinclude.m4
@@ -390,6 +390,10 @@ AC_CACHE_VAL([rd_cv_ieee_$2],
 #  define isinf(a) (fpclassify(a) == FP_INFINITE)
 #endif
 
+#if HAVE_MATH_H
+#include <math.h>
+#endif
+
 #include <stdio.h>
 int main(void){
     double rrdnan,rrdinf,rrdc,rrdzero;