WIP: avoid some warnings when using "import klayout.QtCore"

Reason: klayout_QtCore needs to be linked with QtGui so it's
GSI declarations become available. The reason is only
QSignalMapper which is in QtCore and has a QWidget argument.

src/gsiqt/qt4/QtCore/QtCore.pro

@@ -11,7 +11,7 @@ DEFINES += MAKE_GSI_QTCORE_LIBRARY
 INCLUDEPATH += $$TL_INC $$GSI_INC $$DB_INC $$QTBASIC_INC
 DEPENDPATH += $$TL_INC $$GSI_INC $$DB_INC $$QTBASIC_INC
 
-LIBS += -L$$DESTDIR -lklayout_tl -lklayout_gsi -lklayout_qtbasic
+LIBS += -L$$DESTDIR -lklayout_tl -lklayout_gsi -lklayout_qtbasic -lklayout_QtGui
 
 SOURCES += \
   gsiDeclQtCoreAdd.cc

src/gsiqt/qt4/QtCore/gsiDeclQtCoreAdd.cc

@@ -34,6 +34,11 @@
 //  namespace which is in QtCore ... this introduces a dependency of QtCore GSI lib on QtGui.
 #include <QTextDocument>
 
+//  And this is *only* required because of QSignalMapper which takes a QWidget argument from
+//  the QtGui library and we need to supply the GSI binding for this ...
+#include "gsiQtGuiExternals.h"
+FORCE_LINK_GSI_QTGUI
+
 class Qt_Namespace { };
 
 namespace gsi_qt
@@ -149,14 +154,6 @@ gsi::Class<QPair<double, QPointF> > decl_double_QPointF_QPair ("QtCore", "QPair_
   "@qt\\n@brief Represents a QPair<double, QPointF>"
 );
 
-// ------------------------------------------------------------
-//  Declarations for QPair<double, QColor>
-
-gsi::Class<QPair<double, QColor> > decl_double_QColor_QPair ("QtCore", "QPair_double_QColor",
-  qt_gsi::pair_decl<double, QColor>::methods (),
-  "@qt\\n@brief Represents a QPair<double, QColor>"
-);
-
 // ------------------------------------------------------------
 //  Declarations for QPair<int, int>
 

src/gsiqt/qt4/QtGui/gsiDeclQtGuiAdd.cc

@@ -29,6 +29,14 @@
 namespace gsi_qt
 {
 
+// ------------------------------------------------------------
+//  Declarations for QPair<double, QColor>
+
+gsi::Class<QPair<double, QColor> > decl_double_QColor_QPair ("QtCore", "QPair_double_QColor",
+  qt_gsi::pair_decl<double, QColor>::methods (),
+  "@qt\\n@brief Represents a QPair<double, QColor>"
+);
+
 // ------------------------------------------------------------
 //  Declarations for QPair<QAccessibleInterface*, QAccessible::Relation>
 

src/gsiqt/qt5/QtCore/gsiDeclQtCoreAdd.cc

@@ -150,14 +150,6 @@ gsi::Class<QPair<double, QPointF> > decl_double_QPointF_QPair ("QtCore", "QPair_
   "@qt\\n@brief Represents a QPair<double, QPointF>"
 );
 
-// ------------------------------------------------------------
-//  Declarations for QPair<double, QColor>
-
-gsi::Class<QPair<double, QColor> > decl_double_QColor_QPair ("QtCore", "QPair_double_QColor",
-  qt_gsi::pair_decl<double, QColor>::methods (),
-  "@qt\\n@brief Represents a QPair<double, QColor>"
-);
-
 // ------------------------------------------------------------
 //  Declarations for QPair<int, int>
 

src/gsiqt/qt5/QtGui/gsiDeclQtGuiAdd.cc

@@ -37,4 +37,12 @@ gsi::Class<QPair<QAccessibleInterface*, QAccessible::Relation> > decl_QAccessibl
   "@qt\\n@brief Represents a QPair<QAccessibleInterface*, QAccessible::Relation> >"
 );
 
+// ------------------------------------------------------------
+//  Declarations for QPair<double, QColor>
+
+gsi::Class<QPair<double, QColor> > decl_double_QColor_QPair ("QtCore", "QPair_double_QColor",
+  qt_gsi::pair_decl<double, QColor>::methods (),
+  "@qt\\n@brief Represents a QPair<double, QColor>"
+);
+
 }