From b09b29ef706af9d9de446c30cf3a89f46b8741d0 Mon Sep 17 00:00:00 2001
From: oetiker <oetiker@a5681a0c-68f1-0310-ab6d-d61299d08faa>
Date: Thu, 3 Aug 2006 22:21:37 +0000
Subject: [PATCH] solaris 10 has isnan defined as a sun forte builtin ... gcc
 can not deal with this this will replace isnan with an fpclass expression
 hopefully working around the problem

git-svn-id: svn://svn.oetiker.ch/rrdtool/branches/1.2/program@865 a5681a0c-68f1-0310-ab6d-d61299d08faa
---
 configure.ac | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/configure.ac b/configure.ac
index 56b9532..e50796e 100644
--- a/configure.ac
+++ b/configure.ac
@@ -103,6 +103,12 @@ char *strchr (), *strrchr ();
 #  define isinf(a) (fpclass(a) == FP_NINF || fpclass(a) == FP_PINF)
 #endif
 
+/* solaris 10 it defines isnan such that only forte can compile it ... bad bad  */
+#if (defined(HAVE_ISNAN) && defined(isnan) && defined(HAVE_FPCLASS))
+#  undef isnan
+#  define isnan(a) (fpclass(a) == FP_SNAN || fpclass(a) == FP_QNAN)
+#endif
+
 /* for OSF1 Digital Unix */
 #if (! defined(HAVE_ISINF) && defined(HAVE_FP_CLASS) && defined(HAVE_FP_CLASS_H))
 #  define HAVE_ISINF 1
-- 
2.11.0