# HG changeset patch
# User Hasan Yavuz ÖZDERYA <hy@ozderya.net>
# Date 2016-06-18 11:48:28
# Node ID 8d33924610a02a2143fa1f42ffff20616c7320c7
# Parent  cfaf32d3e490028f87f1f419edc070c155f87e1d

fix build failure on msys2 related to undefined M_PI

diff --git a/src/demoreader.cpp b/src/demoreader.cpp
--- a/src/demoreader.cpp
+++ b/src/demoreader.cpp
@@ -19,6 +19,10 @@
 
 #include "demoreader.h"
 
+#ifndef M_PI
+#define M_PI 3.14159265358979323846
+#endif
+
 DemoReader::DemoReader(QIODevice* device, ChannelManager* channelMan, QObject *parent) :
     AbstractReader(device, channelMan, parent)
 {