0022651: Impossible to build OCC as static library due to using Standard_EXPORT instead of Standard_API

All library-specific macros for defining export / import properties of symbols on Windows (like Standard_API, __Draw_API, _math_API etc.) are eliminated.
Common macro Standard_EXPORT is used in all places where it is necessary.

New macro OCCT_STATIC_BUILD is defined for disabling Standard_EXPORT, to be used instead of HAVE_NO_DLL, though the latter is still supported as well (for compatibility).

To allow building OCCT in static mode on Windows after these changes:
- Files OSD_WNT_1.hxx and OSD_WNT_BREAK.hxx are removed; useful declarations are moved to OSD_WNT.hxx
- In the class IVtkVTK_ShapeData, static fields ARRNAME_MESH_TYPES and ARRNAME_SUBSHAPE_IDS are converted to static inline functions
- Global array ChoixRef defined in IntImp_ComputeTangence.cxx is converted to static function returning element of the array by index
- Unused class Quantity_Convert is removed (it had static field accessed by inline method)
- Struct Approx_Data defined in the same way in BRepApprox_Approx.hxx and GeomInt_WLApprox.hxx is made private member of these classes to avoid name clash
- Some C++ files producing no object code are removed
- In NCollection_EBTree.hxx and StdLPersistent_Collectio.hxx, definition of template virtual method is moved to class definition to avoid MSVC linker warnings on unused symbols

src/IVtkTools/IVtkTools.cxx

@@ -124,7 +124,7 @@ void InitShapeMapper (vtkMapper* theMapper, vtkLookupTable* theColorTable)
 {
   theMapper->ScalarVisibilityOn();
   theMapper->SetScalarModeToUseCellFieldData();
-  theMapper->SelectColorArray (IVtkVTK_ShapeData::ARRNAME_MESH_TYPES);
+  theMapper->SelectColorArray (IVtkVTK_ShapeData::ARRNAME_MESH_TYPES());
   theMapper->SetColorModeToMapScalars();
   theMapper->SetScalarRange (theColorTable->GetRange());
   theMapper->SetLookupTable (theColorTable);

src/IVtkTools/IVtkTools.hxx

@@ -19,16 +19,6 @@
 #include <IVtk_Types.hxx>
 #include <vtkSmartPointer.h>
 
-#if defined(_WIN32) && !defined(HAVE_NO_DLL)
-  #ifdef __IVtkTools_DLL
-    #define IVtkTools_EXPORT __declspec( dllexport )
-  #else
-    #define IVtkTools_EXPORT __declspec( dllimport )
-  #endif
-#else
-  #define IVtkTools_EXPORT
-#endif
-
 class vtkLookupTable;
 class vtkMapper;
 

src/IVtkTools/IVtkTools_DisplayModeFilter.cxx

@@ -38,7 +38,7 @@ IVtkTools_DisplayModeFilter::IVtkTools_DisplayModeFilter()
     myDoDisplaySharedVertices (false)
 {
   // Filter according to values in subshapes types array.
-  myIdsArrayName = IVtkVTK_ShapeData::ARRNAME_MESH_TYPES;
+  myIdsArrayName = IVtkVTK_ShapeData::ARRNAME_MESH_TYPES();
 
   IVtk_IdTypeMap aTypes;
 

src/IVtkTools/IVtkTools_ShapeDataSource.cxx

@@ -167,7 +167,7 @@ int IVtkTools_ShapeDataSource::RequestData(vtkInformation        *vtkNotUsed(the
 vtkSmartPointer<vtkIdTypeArray> IVtkTools_ShapeDataSource::SubShapeIDs()
 {
   vtkSmartPointer<vtkDataArray> arr = 
-    GetOutput()->GetCellData()->GetArray(IVtkVTK_ShapeData::ARRNAME_SUBSHAPE_IDS);
+    GetOutput()->GetCellData()->GetArray(IVtkVTK_ShapeData::ARRNAME_SUBSHAPE_IDS());
   return vtkSmartPointer<vtkIdTypeArray>( 
     vtkIdTypeArray::SafeDownCast(arr.GetPointer()) );
 }

src/IVtkTools/IVtkTools_ShapeDataSource.hxx

@@ -31,7 +31,7 @@ class vtkPolyData;
 
 //! @class IVtkTools_ShapeDataSource.
 //! @brief VTK data source for OCC shapes polygonal data.
-class IVtkTools_EXPORT IVtkTools_ShapeDataSource : public vtkPolyDataAlgorithm
+class Standard_EXPORT IVtkTools_ShapeDataSource : public vtkPolyDataAlgorithm
 {
 public:
 

src/IVtkTools/IVtkTools_ShapeObject.hxx

@@ -47,7 +47,7 @@ class IVtkTools_ShapeDataSource;
 //! It stores data of OCC shape (the OccShape instance) in vtkInformation object of vtkDataObject.
 //! Then pass it to the actors through pipelines,
 //! so selection logic can access OccShape easily given the actor instance.
-class IVtkTools_EXPORT IVtkTools_ShapeObject :  public vtkDataObject
+class Standard_EXPORT IVtkTools_ShapeObject :  public vtkDataObject
 {
 public:
   vtkTypeMacro (IVtkTools_ShapeObject, vtkObject)

src/IVtkTools/IVtkTools_ShapePicker.hxx

@@ -40,7 +40,7 @@ class vtkActorCollection;
 
 //! @class IVtkTools_ShapePicker
 //! @brief VTK picker for OCC shapes with OCC selection algorithm.
-class IVtkTools_EXPORT IVtkTools_ShapePicker :  public vtkAbstractPropPicker
+class Standard_EXPORT IVtkTools_ShapePicker :  public vtkAbstractPropPicker
 {
 public:
   vtkTypeMacro(IVtkTools_ShapePicker, vtkAbstractPropPicker)

src/IVtkTools/IVtkTools_SubPolyDataFilter.cxx

@@ -38,7 +38,7 @@ vtkStandardNewMacro(IVtkTools_SubPolyDataFilter)
 //================================================================
 IVtkTools_SubPolyDataFilter::IVtkTools_SubPolyDataFilter()
 {
-  myIdsArrayName = IVtkVTK_ShapeData::ARRNAME_SUBSHAPE_IDS;
+  myIdsArrayName = IVtkVTK_ShapeData::ARRNAME_SUBSHAPE_IDS();
   myDoFiltering = true;
 }
 

src/IVtkTools/IVtkTools_SubPolyDataFilter.hxx

@@ -27,7 +27,7 @@
 
 //! @class IVtkTools_SubPolyDataFilter 
 //! @brief Cells filter according to the given set of cells ids.
-class IVtkTools_EXPORT IVtkTools_SubPolyDataFilter : public vtkPolyDataAlgorithm
+class Standard_EXPORT IVtkTools_SubPolyDataFilter : public vtkPolyDataAlgorithm
 {
 public:
   vtkTypeMacro(IVtkTools_SubPolyDataFilter,vtkPolyDataAlgorithm)