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-rw-r--r--src/imports/sensors2/qsensor2tilt.cpp1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/imports/sensors2/qsensor2tilt.cpp b/src/imports/sensors2/qsensor2tilt.cpp
index 03251909..b9507593 100644
--- a/src/imports/sensors2/qsensor2tilt.cpp
+++ b/src/imports/sensors2/qsensor2tilt.cpp
@@ -40,6 +40,7 @@
****************************************************************************/
#include "qsensor2tilt.h"
+#define _USE_MATH_DEFINES
#include <math.h>
#include <errno.h>
#include <QtCore/QDebug>