From d1e514952788de504118eb2fef40cd92fc5d9425 Mon Sep 17 00:00:00 2001
From: Alberto Taiuti <alberto.taiuti@gmail.com>
Date: Tue, 18 Oct 2016 23:22:20 +0100
Subject: [PATCH] Fix missing <math.h> header in qrenderdoc for Arch/clang++

Add the <math.h> header to some of the source files for the target
qrenderdoc. The build would not have succeded without these headers
declaration under Arch Linux/clang++.
---
 qrenderdoc/Widgets/CustomPaintWidget.cpp | 1 +
 qrenderdoc/Widgets/RangeHistogram.cpp    | 1 +
 qrenderdoc/Windows/TextureViewer.cpp     | 1 +
 3 files changed, 3 insertions(+)

diff --git a/qrenderdoc/Widgets/CustomPaintWidget.cpp b/qrenderdoc/Widgets/CustomPaintWidget.cpp
index d3c248bf9..0c2273309 100644
--- a/qrenderdoc/Widgets/CustomPaintWidget.cpp
+++ b/qrenderdoc/Widgets/CustomPaintWidget.cpp
@@ -23,6 +23,7 @@
  ******************************************************************************/
 
 #include "CustomPaintWidget.h"
+#include <math.h>
 #include <QPainter>
 #include "Code/CaptureContext.h"
 #include "renderdoc_replay.h"
diff --git a/qrenderdoc/Widgets/RangeHistogram.cpp b/qrenderdoc/Widgets/RangeHistogram.cpp
index cd71b9651..a0e5733f3 100644
--- a/qrenderdoc/Widgets/RangeHistogram.cpp
+++ b/qrenderdoc/Widgets/RangeHistogram.cpp
@@ -24,6 +24,7 @@
 
 #include "RangeHistogram.h"
 #include <float.h>
+#include <math.h>
 #include <QMouseEvent>
 #include <QPainter>
 
diff --git a/qrenderdoc/Windows/TextureViewer.cpp b/qrenderdoc/Windows/TextureViewer.cpp
index 53139c12b..2a721127e 100644
--- a/qrenderdoc/Windows/TextureViewer.cpp
+++ b/qrenderdoc/Windows/TextureViewer.cpp
@@ -24,6 +24,7 @@
 
 #include "TextureViewer.h"
 #include <float.h>
+#include <math.h>
 #include <QClipboard>
 #include <QColorDialog>
 #include <QJsonDocument>