ENH: load CMakeDetermineSystem and CMakeSystemSpecificInformation when

executing a ctest script so the search paths are fully set up and variables
like CMAKE_SYSTEM are available. This is useful e.g. for new-style ctest
scripting.
(these files are also loaded on startup by cpack, so now they behave
similar).
Hmmm, maybe they should be also loaded by cmake -P ?

Alex

Source/CTest/cmCTestScriptHandler.cxx

@@ -380,6 +380,26 @@ int cmCTestScriptHandler::ReadInScript(const std::string& total_script_arg)
   f->CTestScriptHandler = this;
   this->Makefile->AddFunctionBlocker(f);
 
+  /* Execute CMakeDetermineSystem and CMakeSystemSpecificInformation, so 
+  that variables like CMAKE_SYSTEM and also the search paths for libraries,
+  header and executables are set correctly and can be used. Makes new-style
+  ctest scripting easier. */
+  std::string systemFile = 
+      this->Makefile->GetModulesFile("CMakeDetermineSystem.cmake");
+  if (!this->Makefile->ReadListFile(0, systemFile.c_str()) ||
+      cmSystemTools::GetErrorOccuredFlag())
+    {
+    return 2;
+    }
+
+  systemFile = 
+      this->Makefile->GetModulesFile("CMakeSystemSpecificInformation.cmake");
+  if (!this->Makefile->ReadListFile(0, systemFile.c_str()) ||
+      cmSystemTools::GetErrorOccuredFlag())
+    {
+    return 2;
+    }
+
   // finally read in the script
   if (!this->Makefile->ReadListFile(0, script.c_str()) ||
     cmSystemTools::GetErrorOccuredFlag())