* Port to MinGW

i_o-q3-readme

@@ -52,3 +52,42 @@ To compile working(!) shared libraries for 64bit mods the vmMain and
 dllEntry functions as well as the syscall pointer have to be changed
 to accept and return long instead of int.
 
+Compiling under windows using MinGW
+~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+
+It is possible to compile ioQ3 using the MinGW (Minimalist GNU for Windows)
+toolset. It's a little more involved than compiling for linux; steps are as
+follows:
+
+1. Download and install MinGW and MSys from http://www.mingw.org/.
+2. Download and install the DirectX 9 SDK from
+   http://msdn.microsoft.com/directx/. Previous versions of the SDK will
+   probably work, but they have not been tested.
+3. Find the following in DXSDK/Include/dinput.h...
+
+      } DIDEVICEINSTANCEW, *LPDIDEVICEINSTANCEW;
+      #ifdef UNICODE
+      typedef DIDEVICEINSTANCEW DIDEVICEINSTANCE;
+      typedef LPDIDEVICEINSTANCEW LPDIDEVICEINSTANCE;
+      #else
+      typedef DIDEVICEINSTANCEA DIDEVICEINSTANCE;
+      typedef LPDIDEVICEINSTANCEA LPDIDEVICEINSTANCE;
+      #endif // UNICODE
+
+      typedef const DIDEVICEINSTANCEA *LPCDIDEVICEINSTANCEA;
+      typedef const DIDEVICEINSTANCEW *LPCDIDEVICEINSTANCEW;
+   >  #ifdef UNICODE
+   >  typedef DIDEVICEINSTANCEW DIDEVICEINSTANCE;
+   >  typedef LPCDIDEVICEINSTANCEW LPCDIDEVICEINSTANCE;
+   >  #else
+   >  typedef DIDEVICEINSTANCEA DIDEVICEINSTANCE;
+   >  typedef LPCDIDEVICEINSTANCEA LPCDIDEVICEINSTANCE;
+   >  #endif // UNICODE
+      typedef const DIDEVICEINSTANCE  *LPCDIDEVICEINSTANCE;
+
+   ...and comment out/remove the duplicated code (go Microsoft!) marked by '>'.
+
+4. If you didn't install the DirectX SDK in C:\DXSDK\, edit DXSDK_DIR in
+   code/unix/Makefile to reflect the new location.
+5. Perform the usual precompilation sacrificial ritual.
+6. Open an MSys terminal, and follow the instructions for compiling on Linux.