+Microsoft Visual C++ compilation for 64-bit Windows
+----------------------------------------------------------------
+
+Visual Studio 2005 includes 64-bit compilers, though they are not installed by
+default; you need to select them during the installation. Both native 64-bit
+compilers and 32-bit hosted cross compilers are included, so you do not need a
+64-bit machine to use them (though you do to run the created executables).
+Visual C++ Express Edition does not include 64-bit compilers.
+
+64-bit compilers are also available in various SDKs, for example
+the .NET Framework SDK:
+ http://msdn.microsoft.com/netframework/programming/64bit/devtools/
+
+Using project files:
+
+1. Open the VC++ 6 workspace file: build\msw\wx.dsw. Visual Studio will then
+ convert the projects to the current Visual C++ project format.
+
+2. To add 64-bit targets, go to the 'Build' menu and choose 'Configuration
+ Manager...'. In the 'Active solution platform' drop down choose '<new>',
+ then you can choose either 'Itanium' or 'x64'.
+
+ For more detailed instructions see:
+ http://msdn2.microsoft.com/en-us/library/9yb4317s(en-us,vs.80).aspx
+
+ Note: 64-bit targets created this way will use the build directory of the
+ corresponding 32-bit target for some files. Therefore after building
+ for one CPU it is necessary to clean the build before building the
+ equivalent target for another CPU. We've reported the problem to MS
+ but they say it is not possible to fix it.
+
+3. To build, go to the 'Build' menu and choose 'Batch Build...'. Tick all the
+ all the 'x64|Debug' or all the 'Itanium|Debug' projects, and click 'Build'.
+
+ This will build a debug version of the static libs. The section above on
+ Visual C++ in general has more information about adjusting the settings to
+ build other configurations.
+
+4. To compile one of the samples open one of the sample projects, such as
+ samples\minimal\minimal.dsw. Visual Studio will convert the project as in
+ step 1, then add a 64-bit target as in step 2, and build.
+
+Using makefiles:
+
+1. Open a 64-bit build command prompt, for either x64 or Itanium. Change
+ directory to build\msw. Then for x64 type:
+
+ nmake -f makefile.vc TARGET_CPU=AMD64
+
+ or for Itanium: