anchor.diff:  
   :"amd64"
       call :mkmsi nyagos-amd64 "-arch x64"
  +    ren nyagos-amd64.msi nyagos-%VER%-windows-amd64.msi
       exit /b
   
   :"386"
       call :mkmsi nyagos-386
  +    ren nyagos-386.msi nyagos-%VER%-windows-386.msi
       exit /b
   
   :mkmsi
  
positive.code:     exit /b 0
  
  :"version"
      for /F %%I in (..\Etc\version.txt) do set "VER=%%I"
      set "VER=%VER:_=.%"
      ( echo ^<?xml version="1.0" encoding="UTF-8"?^>
        echo ^<Include^>
  
negative.code: @echo off
  setlocal
  set "PROMPT=$$ "
  for /F %%I in (..\Etc\version.txt) do set "VER=%%I"
  call :"%1"
  endlocal
  exit /b
  