From 44493c6327f1e7adfe7f6781dbeb3c6a041ade59 Mon Sep 17 00:00:00 2001
From: Will Dietz <github@wdtz.org>
Date: Sat, 9 Dec 2017 16:00:29 -0600
Subject: [PATCH] VisualNavbar: fix use of std::isnan (#195)

---
 src/widgets/VisualNavbar.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/widgets/VisualNavbar.cpp b/src/widgets/VisualNavbar.cpp
index 9c21e7d9..8efea813 100644
--- a/src/widgets/VisualNavbar.cpp
+++ b/src/widgets/VisualNavbar.cpp
@@ -3,6 +3,7 @@
 #include "MainWindow.h"
 #include "utils/TempConfig.h"
 
+#include <cmath>
 #include <QGraphicsView>
 #include <QComboBox>
 #include <QGraphicsScene>
@@ -213,7 +214,7 @@ void VisualNavbar::drawCursor()
         delete cursorGraphicsItem;
         cursorGraphicsItem = nullptr;
     }
-    if (isnan(cursor_x))
+    if (std::isnan(cursor_x))
     {
         return;
     }