From 8b4cbf05c9ad754fb450b31c1210553e1a3a6525 Mon Sep 17 00:00:00 2001
From: rlar <rlar>
Date: Wed, 11 Jan 2012 19:17:51 +0000
Subject: [PATCH] wrap isnan declaration, isnan is a macro on modern systems

---
 ChangeLog                          | 4 ++++
 src/include/ngspice/missing_math.h | 2 +-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/ChangeLog b/ChangeLog
index ee4d82ec7..2cbadf9e9 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,7 @@
+2012-01-11  Robert Larice
+ * src/include/ngspice/missing_math.h :
+  wrap isnan declaration, isnan is a macro on modern systems
+
 2012-01-11  Robert Larice
  * src/frontend/resource.c :
   fix printf/scanf format strings to match `unsigned long long' arguments
diff --git a/src/include/ngspice/missing_math.h b/src/include/ngspice/missing_math.h
index 0ab551e47..be4d59894 100644
--- a/src/include/ngspice/missing_math.h
+++ b/src/include/ngspice/missing_math.h
@@ -26,7 +26,7 @@ extern double scalbn(double, int);
 #endif
 
 #if !HAVE_DECL_ISNAN
-#ifndef HAVE_ISNAN
+#if !defined(HAVE_ISNAN) && !defined(isnan)
 extern int isnan(double);
 #endif
 #endif