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From edbeee650287a4a36837e090eafed90a760bad83 Mon Sep 17 00:00:00 2001
From: Sandro Santilli <strk@keybit.net>
Date: Mon, 7 Mar 2016 10:21:33 +0000
Subject: [PATCH] Look for isnan in std:: namespace
Tested with gcc 4.8.4
git-svn-id: http://svn.osgeo.org/geos/trunk@4169 5242fede-7e19-0410-aef8-94bd7d2200fb
---
configure.ac | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/configure.ac b/configure.ac
index 7fdc579..8976a6a 100644
--- a/configure.ac
+++ b/configure.ac
@@ -197,7 +197,7 @@ dnl of isnan().
AC_LANG_PUSH([C++])
AC_CACHE_CHECK([for isnan], ac_cv_isnan,
[AC_TRY_LINK([#include <cmath>],
- [double x; int y; y = isnan(x);],
+ [double x; int y; y = std::isnan(x);],
ac_cv_isnan=yes,
ac_cv_isnan=no
)])
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