From: Tobias Oetiker <tobi@oetiker.ch>
Date: Fri, 4 Aug 2006 15:06:18 +0000 (+0000)
Subject: copy of the solaris isnan hack from configure.ac
X-Git-Tag: 1.2.16~74
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0546beab90c07fbcb195c42e21e18a5ef6f18ff1;p=thirdparty%2Frrdtool-1.x.git

copy of the solaris isnan hack from configure.ac


git-svn-id: svn://svn.oetiker.ch/rrdtool/branches/1.2/program@866 a5681a0c-68f1-0310-ab6d-d61299d08faa
---

diff --git a/acinclude.m4 b/acinclude.m4
index 93673957..a4c7d228 100644
--- a/acinclude.m4
+++ b/acinclude.m4
@@ -362,6 +362,12 @@ AC_CACHE_VAL([rd_cv_ieee_$2],
 #  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
+
 /* Digital UNIX */
 #if (! defined(HAVE_ISINF) && defined(HAVE_FP_CLASS) && defined(HAVE_FP_CLASS_H))
 #  define HAVE_ISINF 1