Windows compilation fixes

[libs/gui.git] / source / input / gesturedetector.cpp

diff --git a/source/input/gesturedetector.cpp b/source/input/gesturedetector.cpp
index 98e3ff30522bdf6de8fbe7a8b052ddbadb54f92d..296aab40f36bd4f715a0b579cb29e03ec1a123c1 100644 (file)
--- a/source/input/gesturedetector.cpp
+++ b/source/input/gesturedetector.cpp
@@ -1,3 +1,4 @@
+#define _USE_MATH_DEFINES
 #include <cmath>
 #include <sigc++/bind_return.h>
 #include "gesturedetector.h"