diff --git a/Valentina.pro b/Valentina.pro
index d15f58aec..699a49bc1 100644
--- a/Valentina.pro
+++ b/Valentina.pro
@@ -4,10 +4,13 @@
 #
 #-------------------------------------------------
 
+# Use out-of-source builds (shadow builds)
+
 QT       += core gui widgets xml svg printsupport
 
 TARGET = Valentina
 TEMPLATE = app
+CONFIG   += precompile_header
 
 SOURCES += main.cpp\
         mainwindow.cpp \
@@ -155,11 +158,32 @@ RESOURCES += \
     icon.qrc \
     cursor.qrc
 
+CONFIG -= debug_and_release debug_and_release_target
+
+# directory for executable file
+DESTDIR = bin
+
+# files created moc
+MOC_DIR = moc
+
+# objecs files
+OBJECTS_DIR = obj
+
+# files created rcc
+RCC_DIR = rcc
+
+# files created uic
+UI_DIR = uic
+
+# Use Precompiled headers (PCH)
+PRECOMPILED_HEADER  = stable.h
+
 CONFIG(debug, debug|release){
     # Debug
     QMAKE_CXXFLAGS += -isystem "/usr/include/qt5" -isystem "/usr/include/qt5/QtWidgets" \
                       -isystem "/usr/include/qt5/QtXml" -isystem "/usr/include/qt5/QtGui" \
                       -isystem "/usr/include/qt5/QtCore" -O0 -Wall -Wextra -pedantic -Weffc++ \
+                      -isystem "$$OUT_PWD/uic" \
                       -Woverloaded-virtual -Wctor-dtor-privacy -Wnon-virtual-dtor -Wold-style-cast \
                       -Wconversion -Wsign-conversion -Winit-self -Wunreachable-code -std=c++0x
 }else{
diff --git a/dialogs/dialogalongline.cpp b/dialogs/dialogalongline.cpp
index 7d2e4b003..6e7841255 100644
--- a/dialogs/dialogalongline.cpp
+++ b/dialogs/dialogalongline.cpp
@@ -1,8 +1,5 @@
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Weffc++"
 #include "dialogalongline.h"
 #include "ui_dialogalongline.h"
-#pragma GCC diagnostic pop
 
 DialogAlongLine::DialogAlongLine(const VContainer *data, QWidget *parent) :
     DialogTool(data, parent), ui(new Ui::DialogAlongLine), number(0), pointName(QString()),
diff --git a/dialogs/dialogalongline.h b/dialogs/dialogalongline.h
index cf030da8e..25fed1471 100644
--- a/dialogs/dialogalongline.h
+++ b/dialogs/dialogalongline.h
@@ -1,10 +1,7 @@
 #ifndef DIALOGALONGLINE_H
 #define DIALOGALONGLINE_H
 
-#pragma GCC diagnostic push
-#pragma GCC diagnostic ignored "-Weffc++"
 #include "dialogtool.h"
-#pragma GCC diagnostic pop
 #include "../options.h"
 #include "../container/vcontainer.h"
 #include "../container/calculator.h"
diff --git a/dialogs/dialogsplinepath.ui b/dialogs/dialogsplinepath.ui
index 4fb4a1af0..c6c50ea08 100644
--- a/dialogs/dialogsplinepath.ui
+++ b/dialogs/dialogsplinepath.ui
@@ -176,10 +176,6 @@
     </widget>
    </item>
   </layout>
-  <zorder>buttonBox</zorder>
-  <zorder>layoutWidget_2</zorder>
-  <zorder></zorder>
-  <zorder>horizontalLayoutWidget</zorder>
  </widget>
  <resources/>
  <connections>
diff --git a/mainwindow.h b/mainwindow.h
index 28253430c..4267329ce 100644
--- a/mainwindow.h
+++ b/mainwindow.h
@@ -13,7 +13,6 @@
 #include <QComboBox>
 #include <QSharedPointer>
 #include <QToolButton>
-#include <QSharedPointer>
 #include "widgets/vmaingraphicsscene.h"
 #include "widgets/vmaingraphicsview.h"
 #include "dialogs/dialogincrements.h"
diff --git a/stable.h b/stable.h
new file mode 100644
index 000000000..43303a198
--- /dev/null
+++ b/stable.h
@@ -0,0 +1,13 @@
+/* Add C includes here */
+
+ #if defined __cplusplus
+ /* Add C++ includes here */
+ #include <QApplication>
+ #include <QtXml>
+ #include <QSharedPointer>
+ #include <QMainWindow>
+ #include "options.h"
+ #include <QMap>
+ #include <QString>
+ #include <QDialog>
+ #endif