0022972: Eliminate macro definitions that has compiler-provided analogs (WNT and so on)

1) Macro definition WNT replaced by _WIN32 and _MSC_VER for platform and compiler detection accordingly.
2) Macro definition LIN replaced by __linux__ macro.
3) Macro definition DEB replaced by OCCT_DEBUG macro.

src/VrmlData/VrmlData_Geometry.cxx

@@ -33,7 +33,7 @@
 #include <Standard_ErrorHandler.hxx>
 #include <VrmlData_ArrayVec3d.hxx>
 
-#ifdef WNT
+#ifdef _MSC_VER
 #define _CRT_SECURE_NO_DEPRECATE
 #pragma warning (disable:4996)
 #endif

src/VrmlData/VrmlData_Group.cxx

@@ -23,7 +23,7 @@
 #include <Precision.hxx>
 #include <gp_Ax1.hxx>
 
-#ifdef WNT
+#ifdef _MSC_VER
 #define _CRT_SECURE_NO_DEPRECATE
 #pragma warning (disable:4996)
 #endif

src/VrmlData/VrmlData_IndexedFaceSet.cxx

@@ -29,7 +29,7 @@
 #include <Poly.hxx>
 #include <TShort_HArray1OfShortReal.hxx>
 
-#ifdef WNT
+#ifdef _MSC_VER
 #define _CRT_SECURE_NO_DEPRECATE
 #pragma warning (disable:4996)
 #endif

src/VrmlData/VrmlData_IndexedLineSet.cxx

@@ -26,7 +26,7 @@
 #include <VrmlData_Color.hxx>
 #include <VrmlData_Coordinate.hxx>
 
-#ifdef WNT
+#ifdef _MSC_VER
 #define _CRT_SECURE_NO_DEPRECATE
 #pragma warning (disable:4996)
 #endif

src/VrmlData/VrmlData_Material.cxx

@@ -19,7 +19,7 @@
 #include <VrmlData_Scene.hxx>
 #include <gp_XYZ.hxx>
 
-#ifdef WNT
+#ifdef _MSC_VER
 #define _CRT_SECURE_NO_DEPRECATE
 #pragma warning (disable:4996)
 #endif

src/VrmlData/VrmlData_Node.cxx

@@ -27,7 +27,7 @@
 #include <VrmlData_TextureTransform.hxx>
 #include <VrmlData_Texture.hxx>
 
-#ifdef WNT
+#ifdef _MSC_VER
 #define _CRT_SECURE_NO_DEPRECATE
 #pragma warning (disable:4996)
 #endif

src/VrmlData/VrmlData_Scene.cxx

@@ -46,7 +46,7 @@
 #include <VrmlData_WorldInfo.hxx>
 #include <VrmlData_Geometry.hxx>
 
-#ifdef WNT
+#ifdef _MSC_VER
 #define _CRT_SECURE_NO_DEPRECATE
 #pragma warning (disable:4996)
 #endif
@@ -177,7 +177,7 @@ void VrmlData_Scene::SetVrmlDir (const TCollection_ExtendedString& theDir)
   const Standard_ExtCharacter aTerminator = aDir.Value(aDir.Length());
   if (aTerminator != Standard_ExtCharacter('\\') &&
       aTerminator != Standard_ExtCharacter('/'))
-#ifdef WNT
+#ifdef _WIN32
     aDir += TCollection_ExtendedString ("\\");
 #else
     aDir += TCollection_ExtendedString ("/");

src/VrmlData/VrmlData_WorldInfo.cxx

@@ -17,7 +17,7 @@
 #include <VrmlData_Scene.hxx>
 #include <VrmlData_InBuffer.hxx>
 
-#ifdef WNT
+#ifdef _MSC_VER
 #define _CRT_SECURE_NO_DEPRECATE
 #pragma warning (disable:4996)
 #endif