VS: Factor Find64BitTools out of Win64 generator to parent

It will be shared with a forthcoming IA64 generator.

Source/cmGlobalVisualStudio10Generator.cxx

@@ -174,3 +174,39 @@ std::string cmGlobalVisualStudio10Generator
     }
   return makeCommand;
 }
+
+//----------------------------------------------------------------------------
+bool cmGlobalVisualStudio10Generator::Find64BitTools(cmMakefile* mf)
+{
+  if(!this->PlatformToolset.empty())
+    {
+    return true;
+    }
+  // This edition does not come with 64-bit tools.  Look for them.
+  //
+  // TODO: Detect available tools?  x64\v100 exists but does not work?
+  // KHLM\\SOFTWARE\\Microsoft\\MSBuild\\ToolsVersions\\4.0;VCTargetsPath
+  // c:/Program Files (x86)/MSBuild/Microsoft.Cpp/v4.0/Platforms/
+  //   {Itanium,Win32,x64}/PlatformToolsets/{v100,v90,Windows7.1SDK}
+  std::string winSDK_7_1;
+  if(cmSystemTools::ReadRegistryValue(
+       "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Microsoft SDKs\\"
+       "Windows\\v7.1;InstallationFolder", winSDK_7_1))
+    {
+    cmOStringStream m;
+    m << "Found Windows SDK v7.1: " << winSDK_7_1;
+    mf->DisplayStatus(m.str().c_str(), -1);
+    this->PlatformToolset = "Windows7.1SDK";
+    return true;
+    }
+  else
+    {
+    cmOStringStream e;
+    e << "Cannot enable 64-bit tools with Visual Studio 2010 Express.\n"
+      << "Install the Microsoft Windows SDK v7.1 to get 64-bit tools:\n"
+      << "  http://msdn.microsoft.com/en-us/windows/bb980924.aspx";
+    mf->IssueMessage(cmake::FATAL_ERROR, e.str().c_str());
+    cmSystemTools::SetFatalErrorOccured();
+    return false;
+    }
+}

Source/cmGlobalVisualStudio10Generator.h

@@ -74,6 +74,7 @@ public:
   virtual std::string GetUserMacrosRegKeyBase();
   virtual const char* GetCMakeCFGInitDirectory() 
     { return "$(Configuration)";}
+  bool Find64BitTools(cmMakefile* mf);
 protected:
   virtual const char* GetIDEVersion() { return "10.0"; }
 

Source/cmGlobalVisualStudio10Win64Generator.cxx

@@ -37,42 +37,6 @@ void cmGlobalVisualStudio10Win64Generator
   mf->AddDefinition("MSVC_CXX_ARCHITECTURE_ID", "x64");
 }
 
-//----------------------------------------------------------------------------
-bool cmGlobalVisualStudio10Win64Generator::Find64BitTools(cmMakefile* mf)
-{
-  if(!this->PlatformToolset.empty())
-    {
-    return true;
-    }
-  // This edition does not come with 64-bit tools.  Look for them.
-  //
-  // TODO: Detect available tools?  x64\v100 exists but does not work?
-  // KHLM\\SOFTWARE\\Microsoft\\MSBuild\\ToolsVersions\\4.0;VCTargetsPath
-  // c:/Program Files (x86)/MSBuild/Microsoft.Cpp/v4.0/Platforms/
-  //   {Itanium,Win32,x64}/PlatformToolsets/{v100,v90,Windows7.1SDK}
-  std::string winSDK_7_1;
-  if(cmSystemTools::ReadRegistryValue(
-       "HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Microsoft SDKs\\"
-       "Windows\\v7.1;InstallationFolder", winSDK_7_1))
-    {
-    cmOStringStream m;
-    m << "Found Windows SDK v7.1: " << winSDK_7_1;
-    mf->DisplayStatus(m.str().c_str(), -1);
-    this->PlatformToolset = "Windows7.1SDK";
-    return true;
-    }
-  else
-    {
-    cmOStringStream e;
-    e << "Cannot enable 64-bit tools with Visual Studio 2010 Express.\n"
-      << "Install the Microsoft Windows SDK v7.1 to get 64-bit tools:\n"
-      << "  http://msdn.microsoft.com/en-us/windows/bb980924.aspx";
-    mf->IssueMessage(cmake::FATAL_ERROR, e.str().c_str());
-    cmSystemTools::SetFatalErrorOccured();
-    return false;
-    }
-}
-
 //----------------------------------------------------------------------------
 void cmGlobalVisualStudio10Win64Generator
 ::EnableLanguage(std::vector<std::string> const& languages,

Source/cmGlobalVisualStudio10Win64Generator.h

@@ -34,7 +34,6 @@ public:
 
   virtual void AddPlatformDefinitions(cmMakefile* mf);
 
-  bool Find64BitTools(cmMakefile* mf);
   virtual void EnableLanguage(std::vector<std::string>const& languages,
                               cmMakefile *, bool optional);
 };