Fix Python path issue on Windows VS builds.

Fixed bug introduced by cd77d5c. On VS builds,
we the code was incorrectly deciding that the executable was being run from
install dir causing dashboard failures on VS builds. This addresses that issue.

Change-Id: Ibe98db95544964e3a0d9ac155c1c49258ab30c23

ParaViewCore/ClientServerCore/Core/vtkProcessModuleInitializePython.h

@@ -107,16 +107,18 @@ namespace
   //===========================================================================
   void vtkPythonAppInitPrependPathWindows(const std::string& SELF_DIR)
     {
-    bool is_build_dir = vtksys::SystemTools::FileExists(
-      (SELF_DIR + "/site-packages").c_str());
-    if (is_build_dir)
-      {
-      vtkPythonAppInitPrependPythonPath(SELF_DIR);
+    std::string build_dir_site_packages;
 #if defined(CMAKE_INTDIR)
-      vtkPythonAppInitPrependPythonPath(SELF_DIR + "/../site-packages");
+    build_dir_site_packages = SELF_DIR + "/../site-packages";
 #else
-      vtkPythonAppInitPrependPythonPath(SELF_DIR + "/site-packages");
+    build_dir_site_packages = SELF_DIR + "/site-packages";
 #endif
+    bool is_build_dir =
+      vtksys::SystemTools::FileExists(build_dir_site_packages.c_str());
+    if (is_build_dir)
+      {
+      vtkPythonAppInitPrependPythonPath(SELF_DIR);
+      vtkPythonAppInitPrependPythonPath(build_dir_site_packages);
       }
     else
       {