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-rw-r--r--src/plugins/platforms/xcb/qxcbconnection_xi2.cpp1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/plugins/platforms/xcb/qxcbconnection_xi2.cpp b/src/plugins/platforms/xcb/qxcbconnection_xi2.cpp
index 969b6deed0..81cdaa56c5 100644
--- a/src/plugins/platforms/xcb/qxcbconnection_xi2.cpp
+++ b/src/plugins/platforms/xcb/qxcbconnection_xi2.cpp
@@ -38,6 +38,7 @@
#include "qtouchdevice.h"
#include <qpa/qwindowsysteminterface.h>
#include <QDebug>
+#include <cmath>
#ifdef XCB_USE_XINPUT2