Fix building on Mac.

--HG--
branch : develop

src/app/valentina/mainwindow.cpp

@@ -4260,6 +4260,21 @@ void MainWindow::Preferences()
     }
 }
 
+//---------------------------------------------------------------------------------------------------------------------
+void MainWindow::CreateMeasurements()
+{
+    const QString tape = qApp->TapeFilePath();
+    const QString workingDirectory = QFileInfo(tape).absoluteDir().absolutePath();
+
+    QStringList arguments;
+    if (isNoScaling)
+    {
+        arguments.append(QLatin1String("--") + LONG_OPTION_NO_HDPI_SCALING);
+    }
+
+    QProcess::startDetached(tape, arguments, workingDirectory);
+}
+
 //---------------------------------------------------------------------------------------------------------------------
 void MainWindow::ExportLayoutAs()
 {

src/app/valentina/mainwindow.h

@@ -114,6 +114,9 @@ private slots:
     void ToolBarStyles();
     void ShowPaper(int index);
     void Preferences();
+#if defined(Q_OS_MAC)
+    void CreateMeasurements();
+#endif
     void ExportLayoutAs();
 
     void ArrowTool();

src/libs/vmisc/vabstractapplication.h

@@ -49,7 +49,6 @@
 
 class QUndoStack;
 class VAbstractApplication;// use in define
-class VAbstractPattern;
 class VMainGraphicsView;
 
 #if defined(qApp)