error: use of undeclared identifier 'fabs'.

--HG--
branch : develop

src/app/geometry/vspline.cpp

@@ -30,6 +30,7 @@
 #include "vspline_p.h"
 #include <QDebug>
 #include <QPainterPath>
+#include <QtCore/qmath.h>
 
 //---------------------------------------------------------------------------------------------------------------------
 /**

src/app/tablewindow.cpp

@@ -32,6 +32,7 @@
 #include <QtSvg>
 #include <QPrinter>
 #include "core/vapplication.h"
+#include <QtCore/qmath.h>
 
 #ifdef Q_OS_WIN
 #   define PDFTOPS "pdftops.exe"

src/app/tools/drawTools/vtoolpointofcontact.cpp

@@ -32,6 +32,7 @@
 #include "../../geometry/vpointf.h"
 #include "../../container/vformula.h"
 #include "../../visualization/vistoolpointofcontact.h"
+#include <QtCore/qmath.h>
 
 const QString VToolPointOfContact::ToolType = QStringLiteral("pointOfContact");