From 489753e866eba93e1263f61b716c31ca80a32181 Mon Sep 17 00:00:00 2001
From: Robin Gareus <robin@gareus.org>
Date: Sun, 28 Feb 2016 12:07:00 +0100
Subject: specialize isfinite for MSVC compat

---
 libs/ardour/automation_control.cc | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

(limited to 'libs/ardour')

diff --git a/libs/ardour/automation_control.cc b/libs/ardour/automation_control.cc
index 7e9b55976c..3629345d94 100644
--- a/libs/ardour/automation_control.cc
+++ b/libs/ardour/automation_control.cc
@@ -18,6 +18,7 @@
 
 */
 
+#include <math.h>
 #include <iostream>
 #include "ardour/automation_control.h"
 #include "ardour/automation_watch.h"
@@ -29,6 +30,14 @@
 
 #include "i18n.h"
 
+#ifdef COMPILER_MSVC
+#include <float.h>
+// C99 'isfinite()' is not available in MSVC.
+#define isfinite_local(val) (bool)_finite((double)val)
+#else
+#define isfinite_local isfinite
+#endif
+
 using namespace std;
 using namespace ARDOUR;
 using namespace PBD;
@@ -199,7 +208,7 @@ AutomationControl::internal_to_interface (double val) const
 double
 AutomationControl::interface_to_internal (double val) const
 {
-	if (!isfinite (val)) {
+	if (!isfinite_local (val)) {
 		val = 0;
 	}
 	if (_desc.logarithmic) {
-- 
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