' $Id: configure.vbs 85715 2020-08-12 13:54:57Z vboxsync $
'' @file
' The purpose of this script is to check for all external tools, headers, and
' libraries VBox OSE depends on.
'
' The script generates the build configuration file 'AutoConfig.kmk' and the
' environment setup script 'env.bat'. A log of what has been done is
' written to 'configure.log'.
'

'
' Copyright (C) 2006-2020 Oracle Corporation
'
' This file is part of VirtualBox Open Source Edition (OSE), as
' available from http://www.virtualbox.org. This file is free software;
' you can redistribute it and/or modify it under the terms of the GNU
' General Public License (GPL) as published by the Free Software
' Foundation, in version 2 as it comes in the "COPYING" file of the
' VirtualBox OSE distribution. VirtualBox OSE is distributed in the
' hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
'


'*****************************************************************************
'* Global Variables                                                          *
'*****************************************************************************
dim g_strPath, g_strEnvFile, g_strLogFile, g_strCfgFile, g_strShellOutput
g_strPath = Left(Wscript.ScriptFullName, Len(Wscript.ScriptFullName) - Len("\configure.vbs"))
g_strEnvFile = g_strPath & "\env.bat"
g_strCfgFile = g_strPath & "\AutoConfig.kmk"
g_strLogFile = g_strPath & "\configure.log"
'g_strTmpFile = g_strPath & "\configure.tmp"

dim g_objShell, g_objFileSys
Set g_objShell = WScript.CreateObject("WScript.Shell")
Set g_objFileSys = WScript.CreateObject("Scripting.FileSystemObject")

dim g_strPathkBuild, g_strPathkBuildBin, g_strPathDev, g_strPathVCC, g_strPathPSDK, g_strVerPSDK, g_strPathDDK, g_strSubOutput
g_strPathkBuild = ""
g_strPathDev = ""
g_strPathVCC = ""
g_strPathPSDK = ""
g_strPathDDK = ""

dim g_strTargetArch
g_strTargetArch = ""

dim g_strHostArch
g_strHostArch = ""

dim g_blnDisableCOM, g_strDisableCOM
g_blnDisableCOM = False
g_strDisableCOM = ""

' The internal mode is primarily for skipping some large libraries.
dim g_blnInternalMode
g_blnInternalMode = False

' Whether to try the internal stuff first or last.
dim g_blnInternalFirst
g_blnInternalFirst = True



''
' Converts to unix slashes
function UnixSlashes(str)
   UnixSlashes = replace(str, "\", "/")
end function


''
' Converts to dos slashes
function DosSlashes(str)
   DosSlashes = replace(str, "/", "\")
end function


''
' Read a file (typically the tmp file) into a string.
function FileToString(strFilename)
   const ForReading = 1, TristateFalse = 0
   dim objLogFile, str

   set objFile = g_objFileSys.OpenTextFile(DosSlashes(strFilename), ForReading, False, TristateFalse)
   str = objFile.ReadAll()
   objFile.Close()

   FileToString = str
end function


''
' Deletes a file
sub FileDelete(strFilename)
   if g_objFileSys.FileExists(DosSlashes(strFilename)) then
      g_objFileSys.DeleteFile(DosSlashes(strFilename))
   end if
end sub


''
' Appends a line to an ascii file.
sub FileAppendLine(strFilename, str)
   const ForAppending = 8, TristateFalse = 0
   dim objFile

   set objFile = g_objFileSys.OpenTextFile(DosSlashes(strFilename), ForAppending, True, TristateFalse)
   objFile.WriteLine(str)
   objFile.Close()
end sub


''
' Checks if the file exists.
function FileExists(strFilename)
   FileExists = g_objFileSys.FileExists(DosSlashes(strFilename))
end function


''
' Checks if the directory exists.
function DirExists(strDirectory)
   DirExists = g_objFileSys.FolderExists(DosSlashes(strDirectory))
end function


''
' Checks if this is a WOW64 process.
function IsWow64()
   if g_objShell.Environment("PROCESS")("PROCESSOR_ARCHITEW6432") <> "" then
      IsWow64 = 1
   else
      IsWow64 = 0
   end if
end function


''
' Returns a reverse sorted array (strings).
function ArraySortStrings(arrStrings)
   for i = LBound(arrStrings) to UBound(arrStrings)
      str1 = arrStrings(i)
      for j = i + 1 to UBound(arrStrings)
         str2 = arrStrings(j)
         if StrComp(str2, str1) < 0 then
            arrStrings(j) = str1
            str1 = str2
         end if
      next
      arrStrings(i) = str1
   next
   ArraySortStrings = arrStrings
end function


''
' Prints a string array.
sub ArrayPrintStrings(arrStrings, strPrefix)
   for i = LBound(arrStrings) to UBound(arrStrings)
      Print strPrefix & "arrStrings(" & i & ") = '" & arrStrings(i) & "'"
   next
end sub


''
' Returns a reverse sorted array (strings).
function ArrayRSortStrings(arrStrings)
   ' Sort it.
   arrStrings = ArraySortStrings(arrStrings)

   ' Reverse the array.
   cnt = UBound(arrStrings) - LBound(arrStrings) + 1
   if cnt > 0 then
      j   = UBound(arrStrings)
      iHalf = Fix(LBound(arrStrings) + cnt / 2)
      for i = LBound(arrStrings) to iHalf - 1
         strTmp = arrStrings(i)
         arrStrings(i) = arrStrings(j)
         arrStrings(j) = strTmp
         j = j - 1
      next
   end if
   ArrayRSortStrings = arrStrings
end function


''
' Returns the input array with the string appended.
' Note! There must be some better way of doing this...
function ArrayAppend(arr, str)
   dim i, cnt
   cnt = UBound(arr) - LBound(arr) + 1
   redim arrRet(cnt)
   for i = LBound(arr) to UBound(arr)
      arrRet(i) = arr(i)
   next
   arrRet(UBound(arr) + 1) = str
   ArrayAppend = arrRet
end function



''
' Translates a register root name to a value
function RegTransRoot(strRoot)
   const HKEY_LOCAL_MACHINE = &H80000002
   const HKEY_CURRENT_USER  = &H80000001
   select case strRoot
      case "HKLM"
         RegTransRoot = HKEY_LOCAL_MACHINE
      case "HKCU"
         RegTransRoot = HKEY_CURRENT_USER
      case else
         MsgFatal "RegTransRoot: Unknown root: '" & strRoot & "'"
         RegTransRoot = 0
   end select
end function


'' The registry globals
dim g_objReg, g_objRegCtx
dim g_blnRegistry
g_blnRegistry = false


''
' Init the register provider globals.
function RegInit()
   RegInit = false
   On Error Resume Next
   if g_blnRegistry = false then
      set g_objRegCtx = CreateObject("WbemScripting.SWbemNamedValueSet")
      ' Comment out the following for lines if the cause trouble on your windows version.
      if IsWow64() then
         g_objRegCtx.Add "__ProviderArchitecture", 64
         g_objRegCtx.Add "__RequiredArchitecture", true
      end if
      set objLocator = CreateObject("Wbemscripting.SWbemLocator")
      set objServices = objLocator.ConnectServer("", "root\default", "", "", , , , g_objRegCtx)
      set g_objReg = objServices.Get("StdRegProv")
      g_blnRegistry = true
   end if
   RegInit = true
end function


''
' Gets a value from the registry. Returns "" if string wasn't found / valid.
function RegGetString(strName)
   RegGetString = ""
   if RegInit() then
      dim strRoot, strKey, strValue
      dim iRoot

      ' split up into root, key and value parts.
      strRoot = left(strName, instr(strName, "\") - 1)
      strKey = mid(strName, instr(strName, "\") + 1, instrrev(strName, "\") - instr(strName, "\"))
      strValue = mid(strName, instrrev(strName, "\") + 1)

      ' Must use ExecMethod to call the GetStringValue method because of the context.
      Set InParms = g_objReg.Methods_("GetStringValue").Inparameters
      InParms.hDefKey     = RegTransRoot(strRoot)
      InParms.sSubKeyName = strKey
      InParms.sValueName  = strValue
      On Error Resume Next
      set OutParms = g_objReg.ExecMethod_("GetStringValue", InParms, , g_objRegCtx)
      if OutParms.ReturnValue = 0 then
         RegGetString = OutParms.sValue
      end if
   else
      ' fallback mode
      On Error Resume Next
      RegGetString = g_objShell.RegRead(strName)
   end if
end function


''
' Returns an array of subkey strings.
function RegEnumSubKeys(strRoot, strKeyPath)
   dim iRoot
   iRoot = RegTransRoot(strRoot)
   RegEnumSubKeys = Array()

   if RegInit() then
      ' Must use ExecMethod to call the EnumKey method because of the context.
      Set InParms = g_objReg.Methods_("EnumKey").Inparameters
      InParms.hDefKey     = RegTransRoot(strRoot)
      InParms.sSubKeyName = strKeyPath
      On Error Resume Next
      set OutParms = g_objReg.ExecMethod_("EnumKey", InParms, , g_objRegCtx)
      if OutParms.ReturnValue = 0 then
         RegEnumSubKeys = OutParms.sNames
      end if
   else
      ' fallback mode
      dim objReg, rc, arrSubKeys
      set objReg = GetObject("winmgmts:{impersonationLevel=impersonate}!\\.\root\default:StdRegProv")
      On Error Resume Next
      rc = objReg.EnumKey(iRoot, strKeyPath, arrSubKeys)
      if rc = 0 then
         RegEnumSubKeys = arrSubKeys
      end if
   end if
end function


''
' Returns an array of full path subkey strings.
function RegEnumSubKeysFull(strRoot, strKeyPath)
   dim arrTmp
   arrTmp = RegEnumSubKeys(strRoot, strKeyPath)
   for i = LBound(arrTmp) to UBound(arrTmp)
      arrTmp(i) = strKeyPath & "\" & arrTmp(i)
   next
   RegEnumSubKeysFull = arrTmp
end function


''
' Returns an rsorted array of subkey strings.
function RegEnumSubKeysRSort(strRoot, strKeyPath)
   RegEnumSubKeysRSort = ArrayRSortStrings(RegEnumSubKeys(strRoot, strKeyPath))
end function


''
' Returns an rsorted array of subkey strings.
function RegEnumSubKeysFullRSort(strRoot, strKeyPath)
   RegEnumSubKeysFullRSort = ArrayRSortStrings(RegEnumSubKeysFull(strRoot, strKeyPath))
end function


''
' Gets the commandline used to invoke the script.
function GetCommandline()
   dim str, i

   '' @todo find an api for querying it instead of reconstructing it like this...
   GetCommandline = "cscript configure.vbs"
   for i = 1 to WScript.Arguments.Count
      str = WScript.Arguments.Item(i - 1)
      if str = "" then
         str = """"""
      elseif (InStr(1, str, " ")) then
         str = """" & str & """"
      end if
      GetCommandline = GetCommandline & " " & str
   next
end function


''
' Gets an environment variable.
function EnvGet(strName)
   EnvGet = g_objShell.Environment("PROCESS")(strName)
end function


''
' Sets an environment variable.
sub EnvSet(strName, strValue)
   g_objShell.Environment("PROCESS")(strName) = strValue
   LogPrint "EnvSet: " & strName & "=" & strValue
end sub


''
' Appends a string to an environment variable
sub EnvAppend(strName, strValue)
   dim str
   str = g_objShell.Environment("PROCESS")(strName)
   g_objShell.Environment("PROCESS")(strName) =  str & strValue
   LogPrint "EnvAppend: " & strName & "=" & str & strValue
end sub


''
' Prepends a string to an environment variable
sub EnvPrepend(strName, strValue)
   dim str
   str = g_objShell.Environment("PROCESS")(strName)
   g_objShell.Environment("PROCESS")(strName) =  strValue & str
   LogPrint "EnvPrepend: " & strName & "=" & strValue & str
end sub

''
' Gets the first non-empty environment variable of the given two.
function EnvGetFirst(strName1, strName2)
   EnvGetFirst = g_objShell.Environment("PROCESS")(strName1)
   if EnvGetFirst = "" then
      EnvGetFirst = g_objShell.Environment("PROCESS")(strName2)
   end if
end function


''
' Get the path of the parent directory. Returns root if root was specified.
' Expects abs path.
function PathParent(str)
   PathParent = g_objFileSys.GetParentFolderName(DosSlashes(str))
end function


''
' Strips the filename from at path.
function PathStripFilename(str)
   PathStripFilename = g_objFileSys.GetParentFolderName(DosSlashes(str))
end function


''
' Get the abs path, use the short version if necessary.
function PathAbs(str)
   strAbs    = g_objFileSys.GetAbsolutePathName(DosSlashes(str))
   strParent = g_objFileSys.GetParentFolderName(strAbs)
   if strParent = "" then
      PathAbs = strAbs
   else
      strParent = PathAbs(strParent)  ' Recurse to resolve parent paths.
      PathAbs   = g_objFileSys.BuildPath(strParent, g_objFileSys.GetFileName(strAbs))

      dim obj
      set obj = Nothing
      if FileExists(PathAbs) then
         set obj = g_objFileSys.GetFile(PathAbs)
      elseif DirExists(PathAbs) then
         set obj = g_objFileSys.GetFolder(PathAbs)
      end if

      if not (obj is nothing) then
         for each objSub in obj.ParentFolder.SubFolders
            if obj.Name = objSub.Name  or  obj.ShortName = objSub.ShortName then
               if  InStr(1, objSub.Name, " ") > 0 _
                Or InStr(1, objSub.Name, "&") > 0 _
                Or InStr(1, objSub.Name, "$") > 0 _
                  then
                  PathAbs = g_objFileSys.BuildPath(strParent, objSub.ShortName)
                  if  InStr(1, PathAbs, " ") > 0 _
                   Or InStr(1, PathAbs, "&") > 0 _
                   Or InStr(1, PathAbs, "$") > 0 _
                     then
                     MsgFatal "PathAbs(" & str & ") attempted to return filename with problematic " _
                      & "characters in it (" & PathAbs & "). The tool/sdk referenced will probably " _
                      & "need to be copied or reinstalled to a location without 'spaces', '$', ';' " _
                      & "or '&' in the path name. (Unless it's a problem with this script of course...)"
                  end if
               else
                  PathAbs = g_objFileSys.BuildPath(strParent, objSub.Name)
               end if
               exit for
            end if
         next
      end if
   end if
end function


''
' Get the abs path, use the long version.
function PathAbsLong(str)
   strAbs    = g_objFileSys.GetAbsolutePathName(DosSlashes(str))
   strParent = g_objFileSys.GetParentFolderName(strAbs)
   if strParent = "" then
      PathAbsLong = strAbs
   else
      strParent = PathAbsLong(strParent)  ' Recurse to resolve parent paths.
      PathAbsLong = g_objFileSys.BuildPath(strParent, g_objFileSys.GetFileName(strAbs))

      dim obj
      set obj = Nothing
      if FileExists(PathAbsLong) then
         set obj = g_objFileSys.GetFile(PathAbsLong)
      elseif DirExists(PathAbsLong) then
         set obj = g_objFileSys.GetFolder(PathAbsLong)
      end if

      if not (obj is nothing) then
         for each objSub in obj.ParentFolder.SubFolders
            if obj.Name = objSub.Name  or  obj.ShortName = objSub.ShortName then
               PathAbsLong = g_objFileSys.BuildPath(strParent, objSub.Name)
               exit for
            end if
         next
      end if
   end if
end function


''
' Executes a command in the shell catching output in g_strShellOutput
function Shell(strCommand, blnBoth)
   dim strShell, strCmdline, objExec, str

   strShell = g_objShell.ExpandEnvironmentStrings("%ComSpec%")
   if blnBoth = true then
      strCmdline = strShell & " /c " & strCommand & " 2>&1"
   else
      strCmdline = strShell & " /c " & strCommand & " 2>nul"
   end if

   LogPrint "# Shell: " & strCmdline
   Set objExec = g_objShell.Exec(strCmdLine)
   g_strShellOutput = objExec.StdOut.ReadAll()
   objExec.StdErr.ReadAll()
   do while objExec.Status = 0
      Wscript.Sleep 20
      g_strShellOutput = g_strShellOutput & objExec.StdOut.ReadAll()
      objExec.StdErr.ReadAll()
   loop

   LogPrint "# Status: " & objExec.ExitCode
   LogPrint "# Start of Output"
   LogPrint g_strShellOutput
   LogPrint "# End of Output"

   Shell = objExec.ExitCode
end function


''
' Try find the specified file in the path.
function Which(strFile)
   dim strPath, iStart, iEnd, str

   ' the path
   strPath = EnvGet("Path")
   iStart = 1
   do while iStart <= Len(strPath)
      iEnd = InStr(iStart, strPath, ";")
      if iEnd <= 0 then iEnd = Len(strPath) + 1
      if iEnd > iStart then
         str = Mid(strPath, iStart, iEnd - iStart) & "/" & strFile
         if FileExists(str) then
            Which = str
            exit function
         end if
      end if
      iStart = iEnd + 1
   loop

   ' registry or somewhere?

   Which = ""
end function


''
' Right pads a string with spaces to the given length
function RightPad(str, cch)
   if Len(str) < cch then
      RightPad = str & String(cch - Len(str), " ")
   else
      RightPad = str
   end if
end function

''
' Append text to the log file and echo it to stdout
sub Print(str)
   LogPrint str
   Wscript.Echo str
end sub


''
' Prints a test header
sub PrintHdr(strTest)
   LogPrint "***** Checking for " & strTest & " *****"
   Wscript.Echo "Checking for " & StrTest & "..."
end sub


''
' Prints a success message
sub PrintResultMsg(strTest, strResult)
   dim cchPad
   LogPrint "** " & strTest & ": " & strResult
   Wscript.Echo " Found " & RightPad(strTest & ": ", 18) & strPad & strResult
end sub


''
' Prints a successfully detected path
sub PrintResult(strTest, strPath)
   strLongPath = PathAbsLong(strPath)
   if PathAbs(strPath) <> strLongPath then
      LogPrint         "** " & strTest & ": " & strPath & " (" & UnixSlashes(strLongPath) & ")"
      Wscript.Echo " Found " & RightPad(strTest & ": ", 18) & strPath & " (" & UnixSlashes(strLongPath) & ")"
   else
      LogPrint         "** " & strTest & ": " & strPath
      Wscript.Echo " Found " & RightPad(strTest & ": ", 18) & strPath
   end if
end sub


''
' Warning message.
sub MsgWarning(strMsg)
   Print "warning: " & strMsg
end sub


''
' Fatal error.
sub MsgFatal(strMsg)
   Print "fatal error: " & strMsg
   Wscript.Quit
end sub


''
' Error message, fatal unless flag to ignore errors is given.
sub MsgError(strMsg)
   Print "error: " & strMsg
   if g_blnInternalMode = False then
      Wscript.Quit
   end if
end sub


''
' Write a log header with some basic info.
sub LogInit
   FileDelete g_strLogFile
   LogPrint "# Log file generated by " & Wscript.ScriptFullName
   for i = 1 to WScript.Arguments.Count
      LogPrint "# Arg #" & i & ": " & WScript.Arguments.Item(i - 1)
   next
   if Wscript.Arguments.Count = 0 then
      LogPrint "# No arguments given"
   end if
   LogPrint "# Reconstructed command line: " & GetCommandline()

   ' some Wscript stuff
   LogPrint "# Wscript properties:"
   LogPrint "#   ScriptName: " & Wscript.ScriptName
   LogPrint "#   Version:    " & Wscript.Version
   LogPrint "#   Build:      " & Wscript.BuildVersion
   LogPrint "#   Name:       " & Wscript.Name
   LogPrint "#   Full Name:  " & Wscript.FullName
   LogPrint "#   Path:       " & Wscript.Path
   LogPrint "#"


   ' the environment
   LogPrint "# Environment:"
   dim objEnv
   for each strVar in g_objShell.Environment("PROCESS")
      LogPrint "#   " & strVar
   next
   LogPrint "#"
end sub


''
' Append text to the log file.
sub LogPrint(str)
   FileAppendLine g_strLogFile, str
   'Wscript.Echo "dbg: " & str
end sub


''
' Checks if the file exists and logs failures.
function LogFileExists(strPath, strFilename)
   LogFileExists = FileExists(strPath & "/" & strFilename)
   if LogFileExists = False then
      LogPrint "Testing '" & strPath & "': " & strFilename & " not found"
   end if

end function


''
' Finds the first file matching the pattern.
' If no file is found, log the failure.
function LogFindFile(strPath, strPattern)
   dim str

   '
   ' Yes, there are some facy database kinda interface to the filesystem
   ' however, breaking down the path and constructing a usable query is
   ' too much hassle. So, we'll do it the unix way...
   '
   if Shell("dir /B """ & DosSlashes(strPath) & "\" & DosSlashes(strPattern) & """", True) = 0 _
    And InStr(1, g_strShellOutput, Chr(13)) > 1 _
      then
      ' return the first word.
      LogFindFile = Left(g_strShellOutput, InStr(1, g_strShellOutput, Chr(13)) - 1)
   else
      LogPrint "Testing '" & strPath & "': " & strPattern & " not found"
      LogFindFile = ""
   end if
end function


''
' Finds the first directory matching the pattern.
' If no directory is found, log the failure,
' else return the complete path to the found directory.
function LogFindDir(strPath, strPattern)
   dim str

   '
   ' Yes, there are some facy database kinda interface to the filesystem
   ' however, breaking down the path and constructing a usable query is
   ' too much hassle. So, we'll do it the unix way...
   '

   ' List the alphabetically last names as first entries (with /O-N).
   if Shell("dir /B /AD /O-N """ & DosSlashes(strPath) & "\" & DosSlashes(strPattern) & """", True) = 0 _
    And InStr(1, g_strShellOutput, Chr(13)) > 1 _
      then
      ' return the first word.
      LogFindDir = strPath & "/" & Left(g_strShellOutput, InStr(1, g_strShellOutput, Chr(13)) - 1)
   else
      LogPrint "Testing '" & strPath & "': " & strPattern & " not found"
      LogFindDir = ""
   end if
end function


''
' Initializes the config file.
sub CfgInit
   FileDelete g_strCfgFile
   CfgPrint "# -*- Makefile -*-"
   CfgPrint "#"
   CfgPrint "# Build configuration generated by " & GetCommandline()
   CfgPrint "#"
   if g_blnInternalMode = False then
      CfgPrint "VBOX_OSE := 1"
      CfgPrint "VBOX_VCC_WERR = $(NO_SUCH_VARIABLE)"
   end if
end sub


''
' Prints a string to the config file.
sub CfgPrint(str)
   FileAppendLine g_strCfgFile, str
end sub


''
' Initializes the environment batch script.
sub EnvInit
   FileDelete g_strEnvFile
   EnvPrint "@echo off"
   EnvPrint "rem"
   EnvPrint "rem Environment setup script generated by " & GetCommandline()
   EnvPrint "rem"
end sub


''
' Prints a string to the environment batch script.
sub EnvPrint(str)
   FileAppendLine g_strEnvFile, str
end sub


''
' Helper for EnvPrintPrepend and EnvPrintAppend.
sub EnvPrintCleanup(strEnv, strValue, strSep)
   dim cchValueAndSep
   FileAppendLine g_strEnvFile, "set " & strEnv & "=%" & strEnv & ":" & strSep & strValue & strSep & "=" & strSep & "%"
   cchValueAndSep = Len(strValue) + Len(strSep)
   FileAppendLine g_strEnvFile, "if ""%" & strEnv & "%""==""" & strValue & """ set " & strEnv & "="
   FileAppendLine g_strEnvFile, "if ""%" & strEnv & ":~0," & cchValueAndSep & "%""==""" & strValue & strSep & """ set " & strEnv & "=%" & strEnv & ":~" & cchValueAndSep & "%"
   FileAppendLine g_strEnvFile, "if ""%" & strEnv & ":~-"  & cchValueAndSep & "%""==""" & strSep & strValue & """  set " & strEnv & "=%" & strEnv & ":~0,-" & cchValueAndSep & "%"
end sub

'' Use by EnvPrintPrepend to skip ';' stripping.
dim g_strPrependCleanEnvVars

''
' Print a statement prepending strValue to strEnv, removing duplicate values.
sub EnvPrintPrepend(strEnv, strValue, strSep)
   ' Remove old values and any leading separators.
   EnvPrintCleanup strEnv, strValue, strSep
   if InStr(1, g_strPrependCleanEnvVars, "|" & strEnv & "|") = 0 then
      FileAppendLine g_strEnvFile, "if ""%" & strEnv & ":~0,1%""==""" & strSep & """ set " & strEnv & "=%" & strEnv & ":~1%"
      FileAppendLine g_strEnvFile, "if ""%" & strEnv & ":~0,1%""==""" & strSep & """ set " & strEnv & "=%" & strEnv & ":~1%"
      g_strPrependCleanEnvVars = g_strPrependCleanEnvVars & "|" & strEnv & "|"
   end if
   ' Do the setting
   FileAppendLine g_strEnvFile, "set " & strEnv & "=" & strValue & strSep & "%" & strEnv & "%"
end sub


'' Use by EnvPrintPrepend to skip ';' stripping.
dim g_strAppendCleanEnvVars

''
' Print a statement appending strValue to strEnv, removing duplicate values.
sub EnvPrintAppend(strEnv, strValue, strSep)
   ' Remove old values and any trailing separators.
   EnvPrintCleanup strEnv, strValue, strSep
   if InStr(1, g_strAppendCleanEnvVars, "|" & strEnv & "|") = 0 then
      FileAppendLine g_strEnvFile, "if ""%" & strEnv & ":~-1%""==""" & strSep & """ set " & strEnv & "=%" & strEnv & ":~0,-1%"
      FileAppendLine g_strEnvFile, "if ""%" & strEnv & ":~-1%""==""" & strSep & """ set " & strEnv & "=%" & strEnv & ":~0,-1%"
      g_strAppendCleanEnvVars = g_strAppendCleanEnvVars & "|" & strEnv & "|"
   end if
   ' Do the setting.
   FileAppendLine g_strEnvFile, "set " & strEnv & "=%" & strEnv & "%" & strSep & strValue
end sub


''
' No COM
sub DisableCOM(strReason)
   if g_blnDisableCOM = False then
      LogPrint "Disabled COM components: " & strReason
      g_blnDisableCOM = True
      g_strDisableCOM = strReason
      CfgPrint "VBOX_WITH_MAIN="
      CfgPrint "VBOX_WITH_QTGUI="
      CfgPrint "VBOX_WITH_VBOXSDL="
      CfgPrint "VBOX_WITH_DEBUGGER_GUI="
   end if
end sub


''
' No UDPTunnel
sub DisableUDPTunnel(strReason)
   if g_blnDisableUDPTunnel = False then
      LogPrint "Disabled UDPTunnel network transport: " & strReason
      g_blnDisableUDPTunnel = True
      g_strDisableUDPTunnel = strReason
      CfgPrint "VBOX_WITH_UDPTUNNEL="
   end if
end sub


''
' No SDL
sub DisableSDL(strReason)
   if g_blnDisableSDL = False then
      LogPrint "Disabled SDL frontend: " & strReason
      g_blnDisableSDL = True
      g_strDisableSDL = strReason
      CfgPrint "VBOX_WITH_VBOXSDL="
   end if
end sub


''
' Checks the the path doesn't contain characters the tools cannot deal with.
sub CheckSourcePath
   dim sPwd

   sPwd = PathAbs(g_strPath)
   if InStr(1, sPwd, " ") > 0 then
      MsgError "Source path contains spaces! Please move it. (" & sPwd & ")"
   end if
   if InStr(1, sPwd, "$") > 0 then
      MsgError "Source path contains the '$' char! Please move it. (" & sPwd & ")"
   end if
   if InStr(1, sPwd, "%") > 0 then
      MsgError "Source path contains the '%' char! Please move it. (" & sPwd & ")"
   end if
   if  InStr(1, sPwd, Chr(10)) > 0 _
    Or InStr(1, sPwd, Chr(13)) > 0 _
    Or InStr(1, sPwd, Chr(9)) > 0 _
    then
      MsgError "Source path contains control characters! Please move it. (" & sPwd & ")"
   end if
   Print "Source path: OK"
end sub


''
' Checks for kBuild - very simple :)
sub CheckForkBuild(strOptkBuild)
   PrintHdr "kBuild"

   '
   ' Check if there is a 'kmk' in the path somewhere without
   ' any KBUILD_*PATH stuff around.
   '
   blnNeedEnvVars = True
   g_strPathkBuild = strOptkBuild
   g_strPathkBuildBin = ""
   if   (g_strPathkBuild = "") _
    And (EnvGetFirst("KBUILD_PATH", "PATH_KBUILD") = "") _
    And (EnvGetFirst("KBUILD_BIN_PATH", "PATH_KBUILD_BIN") = "") _
    And (Shell("kmk.exe --version", True) = 0) _
    And (InStr(1,g_strShellOutput, "kBuild Make 0.1") > 0) _
    And (InStr(1,g_strShellOutput, "KBUILD_PATH") > 0) _
    And (InStr(1,g_strShellOutput, "KBUILD_BIN_PATH") > 0) then
      '' @todo Need to parse out the KBUILD_PATH and KBUILD_BIN_PATH values to complete the other tests.
      'blnNeedEnvVars = False
      MsgWarning "You've installed kBuild it seems. configure.vbs hasn't been updated to " _
         & "deal with that yet and will use the one it ships with. Sorry."
   end if

   '
   ' Check for the KBUILD_PATH env.var. and fall back on root/kBuild otherwise.
   '
   if g_strPathkBuild = "" then
      g_strPathkBuild = EnvGetFirst("KBUILD_PATH", "PATH_KBUILD")
      if (g_strPathkBuild <> "") and (FileExists(g_strPathkBuild & "/footer.kmk") = False) then
         MsgWarning "Ignoring incorrect kBuild path (KBUILD_PATH=" & g_strPathkBuild & ")"
         g_strPathkBuild = ""
      end if

      if g_strPathkBuild = "" then
         g_strPathkBuild = g_strPath & "/kBuild"
      end if
   end if

   g_strPathkBuild = UnixSlashes(PathAbs(g_strPathkBuild))

   '
   ' Check for env.vars that kBuild uses (do this early to set g_strTargetArch).
   '
   str = EnvGetFirst("KBUILD_TYPE", "BUILD_TYPE")
   if   (str <> "") _
    And (InStr(1, "|release|debug|profile|kprofile", str) <= 0) then
      EnvPrint "set KBUILD_TYPE=release"
      EnvSet "KBUILD_TYPE", "release"
      MsgWarning "Found unknown KBUILD_TYPE value '" & str &"' in your environment. Setting it to 'release'."
   end if

   str = EnvGetFirst("KBUILD_TARGET", "BUILD_TARGET")
   if   (str <> "") _
    And (InStr(1, "win|win32|win64", str) <= 0) then '' @todo later only 'win' will be valid. remember to fix this check!
      EnvPrint "set KBUILD_TARGET=win"
      EnvSet "KBUILD_TARGET", "win"
      MsgWarning "Found unknown KBUILD_TARGET value '" & str &"' in your environment. Setting it to 'win32'."
   end if

   str = EnvGetFirst("KBUILD_TARGET_ARCH", "BUILD_TARGET_ARCH")
   if   (str <> "") _
    And (InStr(1, "x86|amd64", str) <= 0) then
      EnvPrint "set KBUILD_TARGET_ARCH=x86"
      EnvSet "KBUILD_TARGET_ARCH", "x86"
      MsgWarning "Found unknown KBUILD_TARGET_ARCH value '" & str &"' in your environment. Setting it to 'x86'."
      str = "x86"
   end if
   if g_strTargetArch = "" then '' command line parameter --target-arch=x86|amd64 has priority
      if str <> "" then
         g_strTargetArch = str
      elseif (EnvGet("PROCESSOR_ARCHITEW6432") = "AMD64" ) _
          Or (EnvGet("PROCESSOR_ARCHITECTURE") = "AMD64" ) then
         g_strTargetArch = "amd64"
      else
         g_strTargetArch = "x86"
      end if
   else
      if InStr(1, "x86|amd64", g_strTargetArch) <= 0 then
         EnvPrint "set KBUILD_TARGET_ARCH=x86"
         EnvSet "KBUILD_TARGET_ARCH", "x86"
         MsgWarning "Unknown --target-arch=" & str &". Setting it to 'x86'."
      end if
   end if
   LogPrint " Target architecture: " & g_strTargetArch & "."
   Wscript.Echo " Target architecture: " & g_strTargetArch & "."
   EnvPrint "set KBUILD_TARGET_ARCH=" & g_strTargetArch

   str = EnvGetFirst("KBUILD_TARGET_CPU", "BUILD_TARGET_CPU")
    ' perhaps a bit pedantic this since this isn't clearly define nor used much...
   if   (str <> "") _
    And (InStr(1, "i386|i486|i686|i786|i868|k5|k6|k7|k8", str) <= 0) then
      EnvPrint "set BUILD_TARGET_CPU=i386"
      EnvSet "KBUILD_TARGET_CPU", "i386"
      MsgWarning "Found unknown KBUILD_TARGET_CPU value '" & str &"' in your environment. Setting it to 'i386'."
   end if

   str = EnvGetFirst("KBUILD_HOST", "BUILD_PLATFORM")
   if   (str <> "") _
    And (InStr(1, "win|win32|win64", str) <= 0) then '' @todo later only 'win' will be valid. remember to fix this check!
      EnvPrint "set KBUILD_HOST=win"
      EnvSet "KBUILD_HOST", "win"
      MsgWarning "Found unknown KBUILD_HOST value '" & str &"' in your environment. Setting it to 'win32'."
   end if

   str = EnvGetFirst("KBUILD_HOST_ARCH", "BUILD_PLATFORM_ARCH")
   if str <> "" then
      if InStr(1, "x86|amd64", str) <= 0 then
         str = "x86"
         MsgWarning "Found unknown KBUILD_HOST_ARCH value '" & str &"' in your environment. Setting it to 'x86'."
      end if
   elseif (EnvGet("PROCESSOR_ARCHITEW6432") = "AMD64" ) _
       Or (EnvGet("PROCESSOR_ARCHITECTURE") = "AMD64" ) then
      str = "amd64"
   else
      str = "x86"
   end if
   LogPrint " Host architecture: " & str & "."
   Wscript.Echo " Host architecture: " & str & "."
   EnvPrint "set KBUILD_HOST_ARCH=" & str
   g_strHostArch = str

   str = EnvGetFirst("KBUILD_HOST_CPU", "BUILD_PLATFORM_CPU")
    ' perhaps a bit pedantic this since this isn't clearly define nor used much...
   if   (str <> "") _
    And (InStr(1, "i386|i486|i686|i786|i868|k5|k6|k7|k8", str) <= 0) then
      EnvPrint "set KBUILD_HOST_CPU=i386"
      EnvSet "KBUILD_HOST_CPU", "i386"
      MsgWarning "Found unknown KBUILD_HOST_CPU value '" & str &"' in your environment. Setting it to 'i386'."
   end if

   '
   ' Determin the location of the kBuild binaries.
   '
   if g_strPathkBuildBin = "" then
      g_strPathkBuildBin = g_strPathkBuild & "/bin/win." & g_strHostArch
      if FileExists(g_strPathkBuildBin & "/kmk.exe") = False then
         g_strPathkBuildBin = g_strPathkBuild & "/bin/win.x86"
      end if
   end if
   g_strPathkBuildBin = UnixSlashes(PathAbs(g_strPathkBuildBin))

   '
   ' Perform basic validations of the kBuild installation.
   '
   if  (FileExists(g_strPathkBuild & "/footer.kmk") = False) _
    Or (FileExists(g_strPathkBuild & "/header.kmk") = False) _
    Or (FileExists(g_strPathkBuild & "/rules.kmk") = False) then
      MsgFatal "Can't find valid kBuild at '" & g_strPathkBuild & "'. Either there is an " _
         & "incorrect KBUILD_PATH in the environment or the checkout didn't succeed."
      exit sub
   end if
   if  (FileExists(g_strPathkBuildBin & "/kmk.exe") = False) _
    Or (FileExists(g_strPathkBuildBin & "/kmk_ash.exe") = False) then
      MsgFatal "Can't find valid kBuild binaries at '" & g_strPathkBuildBin & "'. Either there is an " _
         & "incorrect KBUILD_PATH in the environment or the checkout didn't succeed."
      exit sub
   end if

   if (Shell(DosSlashes(g_strPathkBuildBin & "/kmk.exe") & " --version", True) <> 0) Then
      MsgFatal "Can't execute '" & g_strPathkBuildBin & "/kmk.exe --version'. check configure.log for the out."
      exit sub
   end if

   '
   ' If PATH_DEV is set, check that it's pointing to something useful.
   '
   ''' @todo wtf is this supposed to be again?  Nobody uses it afaikt.
   str = EnvGet("PATH_DEV")
   g_strPathDev = str
   if (str <> "") _
    And False then '' @todo add some proper tests here.
      strNew = UnixSlashes(g_strPath & "/tools")
      EnvPrint "set PATH_DEV=" & strNew
      EnvSet "PATH_DEV", strNew
      MsgWarning "Found PATH_DEV='" & str &"' in your environment. Setting it to '" & strNew & "'."
      g_strPathDev = strNew
   end if
   if g_strPathDev = "" then g_strPathDev = UnixSlashes(g_strPath & "/tools")

   '
   ' Write KBUILD_PATH and updated PATH to the environment script if necessary.
   '
   if blnNeedEnvVars = True then
      EnvPrint "set KBUILD_PATH=" & g_strPathkBuild
      EnvSet "KBUILD_PATH", g_strPathkBuild

      if Right(g_strPathkBuildBin, 7) = "win.x86" then
         EnvPrintCleanup "PATH", DosSlashes(Left(g_strPathkBuildBin, Len(g_strPathkBuildBin) - 7) & "win.amd64"), ";"
      end if
      if Right(g_strPathkBuildBin, 9) = "win.amd64" then
         EnvPrintCleanup "PATH", DosSlashes(Left(g_strPathkBuildBin, Len(g_strPathkBuildBin) - 9) & "win.x86"), ";"
      end if
      EnvPrintPrepend "PATH", DosSlashes(g_strPathkBuildBin), ";"
      EnvPrepend "PATH", g_strPathkBuildBin & ";"
   end if

   PrintResult "kBuild", g_strPathkBuild
   PrintResult "kBuild binaries", g_strPathkBuildBin
end sub


''
' Checks for Visual C++ version 10 (2010).
sub CheckForVisualCPP(strOptVC, strOptVCCommon, blnOptVCExpressEdition)
   dim strPathVC, strPathVCCommon, str, str2, blnNeedMsPDB
   PrintHdr "Visual C++"

   '
   ' Try find it...
   '
   strPathVC = ""
   strPathVCCommon = ""
   if (strPathVC = "") And (strOptVC <> "") then
      if CheckForVisualCPPSub(strOptVC, strOptVCCommon, blnOptVCExpressEdition) then
         strPathVC = strOptVC
         strPathVCCommon = strOptVCCommon
      end if
   end if

   if (strPathVC = "") And (g_blnInternalFirst = True) Then
      strPathVC = g_strPathDev & "/win.x86/vcc/v10sp1"
      if CheckForVisualCPPSub(strPathVC, "", blnOptVCExpressEdition) = False then
         strPathVC = ""
      end if
   end if

   if   (strPathVC = "") _
    And (Shell("cl.exe", True) = 0) then
      str = Which("cl.exe")
      if FileExists(PathStripFilename(strClExe) & "/build.exe") then
         ' don't know how to deal with this cl.
         Warning "Ignoring DDK cl.exe (" & str & ")."
      else
         strPathVC = PathParent(PathStripFilename(str))
         strPathVCCommon = PathParent(strPathVC) & "/Common7"
      end if
   end if

   if (strPathVC = "") then
      str = RegGetString("HKLM\SOFTWARE\Wow6432Node\Microsoft\VisualStudio\10.0\Setup\VS\ProductDir")
      if str <> "" Then
         str2 = str & "Common7"
         str = str & "VC"
         if CheckForVisualCPPSub(str, str2, blnOptVCExpressEdition) then
            strPathVC = str
            strPathVCCommon = str2
         end if
      end if
   end if

   if (strPathVC = "") then
      str = RegGetString("HKLM\SOFTWARE\Microsoft\VisualStudio\10.0\Setup\VS\ProductDir")
      if str <> "" Then
         str2 = str & "Common7"
         str = str & "VC"
         if CheckForVisualCPPSub(str, str2, blnOptVCExpressEdition) then
            strPathVC = str
            strPathVCCommon = str2
         end if
      end if
   end if

   if (strPathVC = "") And (g_blnInternalFirst = False) Then
      strPathVC = g_strPathDev & "/win.x86/vcc/v10sp1"
      if CheckForVisualCPPSub(strPathVC, "", blnOptVCExpressEdition) = False then
         strPathVC = ""
      end if
   end if

   if strPathVC = "" then
      MsgError "Cannot find cl.exe (Visual C++) anywhere on your system. Check the build requirements."
      exit sub
   end if

   '
   ' Clean up the path and determin the VC directory.
   '
   strPathVC = UnixSlashes(PathAbs(strPathVC))
   g_strPathVCC = strPathVC

   '
   ' Check the version.
   ' We'll have to make sure mspdbXX.dll is somewhere in the PATH.
   '
   if (strPathVCCommon <> "") Then
      EnvAppend "PATH", ";" & strPathVCCommon & "/IDE"
   end if
   if Shell(DosSlashes(strPathVC & "/bin/cl.exe"), True) <> 0 then
      MsgError "Executing '" & strClExe & "' (which we believe to be the Visual C++ compiler driver) failed."
      exit sub
   end if

   if   (InStr(1, g_strShellOutput, "Version 16.") <= 0) _
    And (InStr(1, g_strShellOutput, "Version 17.") <= 0) then
      MsgError "The Visual C++ compiler we found ('" & strPathVC & "') isn't 10.0 or 11.0. Check the build requirements."
      exit sub
   end if

   '
   ' Ok, emit build config variables.
   '
   if InStr(1, g_strShellOutput, "Version 16.") > 0 then
      CfgPrint "PATH_TOOL_VCC100      := " & g_strPathVCC
      CfgPrint "PATH_TOOL_VCC100X86   := $(PATH_TOOL_VCC100)"
      CfgPrint "PATH_TOOL_VCC100AMD64 := $(PATH_TOOL_VCC100)"
      CfgPrint "VBOX_WITH_NEW_VCC     :="
      if LogFileExists(strPathVC, "atlmfc/include/atlbase.h") then
         PrintResult "Visual C++ v10 with ATL", g_strPathVCC
      elseif   LogFileExists(g_strPathDDK, "inc/atl71/atlbase.h") _
           And LogFileExists(g_strPathDDK, "lib/ATL/i386/atls.lib") then
         CfgPrint "VBOX_WITHOUT_COMPILER_REDIST=1"
         CfgPrint "PATH_TOOL_VCC100_ATLMFC_INC       = " & g_strPathDDK & "/inc/atl71"
         CfgPrint "PATH_TOOL_VCC100_ATLMFC_LIB.amd64 = " & g_strPathDDK & "/lib/ATL/amd64"
         CfgPrint "PATH_TOOL_VCC100_ATLMFC_LIB.x86   = " & g_strPathDDK & "/lib/ATL/i386"
         CfgPrint "PATH_TOOL_VCC100AMD64_ATLMFC_INC  = " & g_strPathDDK & "/inc/atl71"
         CfgPrint "PATH_TOOL_VCC100AMD64_ATLMFC_LIB  = " & g_strPathDDK & "/lib/ATL/amd64"
         CfgPrint "PATH_TOOL_VCC100X86_ATLMFC_INC    = " & g_strPathDDK & "/inc/atl71"
         CfgPrint "PATH_TOOL_VCC100X86_ATLMFC_LIB    = " & g_strPathDDK & "/lib/ATL/i386"
         PrintResult "Visual C++ v10 with DDK ATL", g_strPathVCC
      else
         CfgPrint "VBOX_WITHOUT_COMPILER_REDIST=1"
         DisableCOM "No ATL"
         PrintResult "Visual C++ v10 (or later) without ATL", g_strPathVCC
      end if

   elseif InStr(1, g_strShellOutput, "Version 17.") > 0 then
      CfgPrint "PATH_TOOL_VCC110      := " & g_strPathVCC
      CfgPrint "PATH_TOOL_VCC110X86   := $(PATH_TOOL_VCC110)"
      CfgPrint "PATH_TOOL_VCC110AMD64 := $(PATH_TOOL_VCC110)"
      PrintResult "Visual C++ v11", g_strPathVCC
      MsgWarning "The support for Visual C++ v11 (aka 2012) is experimental"

   else
      MsgError "The Visual C++ compiler we found ('" & strPathVC & "') isn't 10.0 or 11.0. Check the build requirements."
      exit sub
   end if

   ' and the env.bat path fix.
   if strPathVCCommon <> "" then
      EnvPrintAppend "PATH", DosSlashes(strPathVCCommon) & "\IDE", ";"
   end if
end sub

''
' Checks if the specified path points to a usable PSDK.
function CheckForVisualCPPSub(strPathVC, strPathVCCommon, blnOptVCExpressEdition)
   strPathVC = UnixSlashes(PathAbs(strPathVC))
   CheckForVisualCPPSub = False
   LogPrint "trying: strPathVC=" & strPathVC & " strPathVCCommon=" & strPathVCCommon & " blnOptVCExpressEdition=" & blnOptVCExpressEdition
   if   LogFileExists(strPathVC, "bin/cl.exe") _
    And LogFileExists(strPathVC, "bin/link.exe") _
    And LogFileExists(strPathVC, "include/string.h") _
    And LogFileExists(strPathVC, "lib/libcmt.lib") _
    And LogFileExists(strPathVC, "lib/msvcrt.lib") _
      then
      if blnOptVCExpressEdition _
       Or (    LogFileExists(strPathVC, "atlmfc/include/atlbase.h") _
           And LogFileExists(strPathVC, "atlmfc/lib/atls.lib")) _
       Or (    LogFileExists(g_strPathDDK, "inc/atl71/atlbase.h") _
           And LogFileExists(g_strPathDDK, "lib/ATL/i386/atls.lib")) _
         Then
         '' @todo figure out a way we can verify the version/build!
         CheckForVisualCPPSub = True
      end if
   end if
end function


''
' Checks for a platform SDK that works with the compiler
sub CheckForPlatformSDK(strOptSDK)
   dim strPathPSDK, str
   PrintHdr "Windows Platform SDK (recent)"

   strPathPSDK = ""

   ' Check the supplied argument first.
   str = strOptSDK
   if str <> "" then
      if CheckForPlatformSDKSub(str) then strPathPSDK = str
   end if

   ' The tools location (first).
   if strPathPSDK = "" And g_blnInternalFirst then
      str = g_strPathDev & "/win.x86/sdk/v7.1"
      if CheckForPlatformSDKSub(str) then strPathPSDK = str
   end if

   if strPathPSDK = "" And g_blnInternalFirst then
      str = g_strPathDev & "/win.x86/sdk/v8.0"
      if CheckForPlatformSDKSub(str) then strPathPSDK = str
   end if

   ' Look for it in the environment
   str = EnvGet("MSSdk")
   if strPathPSDK = "" And str <> "" then
      if CheckForPlatformSDKSub(str) then strPathPSDK = str
   end if

   str = EnvGet("Mstools")
   if strPathPSDK = "" And str <> "" then
      if CheckForPlatformSDKSub(str) then strPathPSDK = str
   end if

   ' Check if there is one installed with the compiler.
   if strPathPSDK = "" And str <> "" then
      str = g_strPathVCC & "/PlatformSDK"
      if CheckForPlatformSDKSub(str) then strPathPSDK = str
   end if

   ' Check the registry next (ASSUMES sorting).
   arrSubKeys = RegEnumSubKeysRSort("HKLM", "SOFTWARE\Microsoft\Microsoft SDKs\Windows")
   for each strSubKey in arrSubKeys
      str = RegGetString("HKLM\SOFTWARE\Microsoft\Microsoft SDKs\Windows\" & strSubKey & "\InstallationFolder")
      if strPathPSDK = "" And str <> "" then
         if CheckForPlatformSDKSub(str) then strPathPSDK = str
      end if
   Next
   arrSubKeys = RegEnumSubKeysRSort("HKCU", "SOFTWARE\Microsoft\Microsoft SDKs\Windows")
   for each strSubKey in arrSubKeys
      str = RegGetString("HKCU\SOFTWARE\Microsoft\Microsoft SDKs\Windows\" & strSubKey & "\InstallationFolder")
      if strPathPSDK = "" And str <> "" then
         if CheckForPlatformSDKSub(str) then strPathPSDK = str
      end if
   Next

   ' The tools location (post).
   if (strPathPSDK = "") And (g_blnInternalFirst = False) then
      str = g_strPathDev & "/win.x86/sdk/v7.1"
      if CheckForPlatformSDKSub(str) then strPathPSDK = str
   end if

   if (strPathPSDK = "") And (g_blnInternalFirst = False) then
      str = g_strPathDev & "/win.x86/sdk/v8.0"
      if CheckForPlatformSDKSub(str) then strPathPSDK = str
   end if

   ' Give up.
   if strPathPSDK = "" then
      MsgError "Cannot find a suitable Platform SDK. Check configure.log and the build requirements."
      exit sub
   end if

   '
   ' Emit the config.
   '
   strPathPSDK = UnixSlashes(PathAbs(strPathPSDK))
   CfgPrint "PATH_SDK_WINPSDK" & g_strVerPSDK & "    := " & strPathPSDK
   CfgPrint "VBOX_WINPSDK          := WINPSDK" & g_strVerPSDK

   PrintResult "Windows Platform SDK (v" & g_strVerPSDK & ")", strPathPSDK
   g_strPathPSDK = strPathPSDK
end sub

''
' Checks if the specified path points to a usable PSDK.
function CheckForPlatformSDKSub(strPathPSDK)
   CheckForPlatformSDKSub = False
   LogPrint "trying: strPathPSDK=" & strPathPSDK
   if    LogFileExists(strPathPSDK, "include/Windows.h") _
    And  LogFileExists(strPathPSDK, "lib/Kernel32.Lib") _
    And  LogFileExists(strPathPSDK, "lib/User32.Lib") _
    And  LogFileExists(strPathPSDK, "bin/rc.exe") _
    And  Shell("""" & DosSlashes(strPathPSDK & "/bin/rc.exe") & """" , True) <> 0 _
      then
      if InStr(1, g_strShellOutput, "Resource Compiler Version 6.2.") > 0 then
         g_strVerPSDK = "80"
         CheckForPlatformSDKSub = True
      elseif InStr(1, g_strShellOutput, "Resource Compiler Version 6.1.") > 0 then
         g_strVerPSDK = "71"
         CheckForPlatformSDKSub = True
      end if
   end if
end function


''
' Checks for a Windows 7 Driver Kit.
sub CheckForWinDDK(strOptDDK)
   dim strPathDDK, str, strSubKeys
   PrintHdr "Windows DDK v7.1"

   '
   ' Find the DDK.
   '
   strPathDDK = ""
   ' The specified path.
   if strPathDDK = "" And strOptDDK <> "" then
      if CheckForWinDDKSub(strOptDDK, True) then strPathDDK = strOptDDK
   end if

   ' The tools location (first).
   if strPathDDK = "" And g_blnInternalFirst then
      str = g_strPathDev & "/win.x86/ddk/7600.16385.1"
      if CheckForWinDDKSub(str, False) then strPathDDK = str
   end if

   ' Check the environment
   str = EnvGet("DDK_INC_PATH")
   if strPathDDK = "" And str <> "" then
      str = PathParent(PathParent(str))
      if CheckForWinDDKSub(str, True) then strPathDDK = str
   end if

   str = EnvGet("BASEDIR")
   if strPathDDK = "" And str <> "" then
      if CheckForWinDDKSub(str, True) then strPathDDK = str
   end if

   ' Some array constants to ease the work.
   arrSoftwareKeys = array("SOFTWARE", "SOFTWARE\Wow6432Node")
   arrRoots        = array("HKLM", "HKCU")

   ' Windows 7 WDK.
   arrLocations = array()
   for each strSoftwareKey in arrSoftwareKeys
      for each strSubKey in RegEnumSubKeysFull("HKLM", strSoftwareKey & "\Microsoft\KitSetup\configured-kits")
         for each strSubKey2 in RegEnumSubKeysFull("HKLM", strSubKey)
            str = RegGetString("HKLM\" & strSubKey2 & "\setup-install-location")
            if str <> "" then
               arrLocations = ArrayAppend(arrLocations, PathAbsLong(str))
            end if
         next
      next
   next
   arrLocations = ArrayRSortStrings(arrLocations)

   ' Check the locations we've gathered.
   for each str in arrLocations
      if strPathDDK = "" then
         if CheckForWinDDKSub(str, True) then strPathDDK = str
      end if
   next

   ' The tools location (post).
   if (strPathDDK = "") And (g_blnInternalFirst = False) then
      str = g_strPathDev & "/win.x86/ddk/7600.16385.1"
      if CheckForWinDDKSub(str, False) then strPathDDK = str
   end if

   ' Give up.
   if strPathDDK = "" then
      MsgError "Cannot find the Windows DDK v7.1. Check configure.log and the build requirements."
      exit sub
   end if

   '
   ' Emit the config.
   '
   strPathDDK = UnixSlashes(PathAbs(strPathDDK))
   CfgPrint "PATH_SDK_WINDDK71     := " & strPathDDK

   PrintResult "Windows DDK v7.1", strPathDDK
   g_strPathDDK = strPathDDK
end sub

'' Quick check if the DDK is in the specified directory or not.
function CheckForWinDDKSub(strPathDDK, blnCheckBuild)
   CheckForWinDDKSub = False
   LogPrint "trying: strPathDDK=" & strPathDDK & " blnCheckBuild=" & blnCheckBuild
   if   LogFileExists(strPathDDK, "inc/api/ntdef.h") _
    And LogFileExists(strPathDDK, "lib/win7/i386/int64.lib") _
    And LogFileExists(strPathDDK, "lib/wlh/i386/int64.lib") _
    And LogFileExists(strPathDDK, "lib/wnet/i386/int64.lib") _
    And LogFileExists(strPathDDK, "lib/wxp/i386/int64.lib") _
    And Not LogFileExists(strPathDDK, "lib/win8/i386/int64.lib") _
    And LogFileExists(strPathDDK, "bin/x86/rc.exe") _
      then
      if Not blnCheckBuild then
         CheckForWinDDKSub = True
      '' @todo Find better build check.
      elseif Shell("""" & DosSlashes(strPathDDK & "/bin/x86/rc.exe") & """" , True) <> 0 _
         And InStr(1, g_strShellOutput, "Resource Compiler Version 6.1.") > 0 then
         CheckForWinDDKSub = True
      end if
   end if
end function


''
' Finds midl.exe
sub CheckForMidl()
   dim strMidl
   PrintHdr "Midl.exe"

   ' Skip if no COM/ATL.
   if g_blnDisableCOM then
      PrintResultMsg "Midl", "Skipped (" & g_strDisableCOM & ")"
      exit sub
   end if

   if LogFileExists(g_strPathPSDK, "bin/Midl.exe") then
      strMidl = g_strPathPSDK & "/bin/Midl.exe"
   elseif LogFileExists(g_strPathVCC, "Common7/Tools/Bin/Midl.exe") then
      strMidl = g_strPathVCC & "/Common7/Tools/Bin/Midl.exe"
   elseif LogFileExists(g_strPathDDK, "bin/x86/Midl.exe") then
      strMidl = g_strPathDDK & "/bin/x86/Midl.exe"
   elseif LogFileExists(g_strPathDDK, "bin/Midl.exe") then
      strMidl = g_strPathDDK & "/bin/Midl.exe"
   elseif LogFileExists(g_strPathDev, "win.x86/bin/Midl.exe") then
      strMidl = g_strPathDev & "/win.x86/bin/Midl.exe"
   else
      MsgWarning "Midl.exe not found!"
      exit sub
   end if

   CfgPrint "VBOX_MAIN_IDL         := " & strMidl
   PrintResult "Midl.exe", strMidl
end sub


''
' Checks for any libSDL binaries.
sub CheckForlibSDL(strOptlibSDL)
   dim strPathlibSDL, str
   PrintHdr "libSDL"

   '
   ' Try find some SDL library.
   '

   ' First, the specific location.
   strPathlibSDL = ""
   if (strPathlibSDL = "") And (strOptlibSDL <> "") then
      if CheckForlibSDLSub(strOptlibSDL) then strPathlibSDL = strOptlibSDL
   end if

   ' The tools location (first).
   if (strPathlibSDL = "") And (g_blnInternalFirst = True) Then
      str = g_strPathDev & "/win.x86/libsdl/v1.2.11"
      if CheckForlibSDLSub(str) then strPathlibSDL = str
   end if

   if (strPathlibSDL = "") And (g_blnInternalFirst = True) Then
      str = g_strPathDev & "/win.x86/libsdl/v1.2.7-InnoTek"
      if CheckForlibSDLSub(str) then strPathlibSDL = str
   end if

   ' Poke about in the path.
   str = Which("SDLmain.lib")
   if (strPathlibSDL = "") And (str <> "") Then
      str = PathParent(PathStripFilename(str))
      if CheckForlibSDLSub(str) then strPathlibSDL = str
   end if

   str = Which("SDL.dll")
   if (strPathlibSDL = "") And (str <> "") Then
      str = PathParent(PathStripFilename(str))
      if CheckForlibSDLSub(str) then strPathlibSDL = str
   end if

   ' The tools location (post).
   if (strPathlibSDL = "") And (g_blnInternalFirst = False) Then
      str = g_strPathDev & "/win.x86/libsdl/v1.2.11"
      if CheckForlibSDLSub(str) then strPathlibSDL = str
   end if

   if (strPathlibSDL = "") And (g_blnInternalFirst = False) Then
      str = g_strPathDev & "/win.x86/libsdl/v1.2.7-InnoTek"
      if CheckForlibSDLSub(str) then strPathlibSDL = str
   end if

   ' Success?
   if strPathlibSDL = "" then
      if strOptlibSDL = "" then
         MsgError "Can't locate libSDL. Try specify the path with the --with-libSDL=<path> argument. " _
                & "If still no luck, consult the configure.log and the build requirements."
      else
         MsgError "Can't locate libSDL. Please consult the configure.log and the build requirements."
      end if
      exit sub
   end if

   strPathLibSDL = UnixSlashes(PathAbs(strPathLibSDL))
   CfgPrint "PATH_SDK_LIBSDL       := " & strPathlibSDL

   PrintResult "libSDL", strPathlibSDL
end sub

''
' Checks if the specified path points to an usable libSDL or not.
function CheckForlibSDLSub(strPathlibSDL)
   CheckForlibSDLSub = False
   LogPrint "trying: strPathlibSDL=" & strPathlibSDL
   if   LogFileExists(strPathlibSDL, "lib/SDL.lib") _
    And LogFileExists(strPathlibSDL, "lib/SDLmain.lib") _
    And LogFileExists(strPathlibSDL, "lib/SDL.dll") _
    And LogFileExists(strPathlibSDL, "include/SDL.h") _
    And LogFileExists(strPathlibSDL, "include/SDL_syswm.h") _
    And LogFileExists(strPathlibSDL, "include/SDL_version.h") _
      then
      CheckForlibSDLSub = True
   end if
end function


''
' Checks for libxml2.
sub CheckForXml2(strOptXml2)
   dim strPathXml2, str
   PrintHdr "libxml2"

   '
   ' Part of tarball / svn, so we can exit immediately if no path was specified.
   '
   if (strOptXml2 = "") then
      PrintResultMsg "libxml2", "src/lib/libxml2-*"
      exit sub
   end if

   ' Skip if no COM/ATL.
   if g_blnDisableCOM then
      PrintResultMsg "libxml2", "Skipped (" & g_strDisableCOM & ")"
      exit sub
   end if

   '
   ' Try find some xml2 dll/lib.
   '
   strPathXml2 = ""
   if (strPathXml2 = "") And (strOptXml2 <> "") then
      if CheckForXml2Sub(strOptXml2) then strPathXml2 = strOptXml2
   end if

   if strPathXml2 = "" Then
      str = Which("libxml2.lib")
      if str <> "" Then
         str = PathParent(PathStripFilename(str))
         if CheckForXml2Sub(str) then strPathXml2 = str
      end if
   end if

   ' Ignore failure if we're in 'internal' mode.
   if (strPathXml2 = "") and g_blnInternalMode then
      PrintResultMsg "libxml2", "ignored (internal mode)"
      exit sub
   end if

   ' Success?
   if strPathXml2 = "" then
      if strOptXml2 = "" then
         MsgError "Can't locate libxml2. Try specify the path with the --with-libxml2=<path> argument. " _
                & "If still no luck, consult the configure.log and the build requirements."
      else
         MsgError "Can't locate libxml2. Please consult the configure.log and the build requirements."
      end if
      exit sub
   end if

   strPathXml2 = UnixSlashes(PathAbs(strPathXml2))
   CfgPrint "SDK_VBOX_LIBXML2_DEFS  := _REENTRANT"
   CfgPrint "SDK_VBOX_LIBXML2_INCS  := " & strPathXml2 & "/include"
   CfgPrint "SDK_VBOX_LIBXML2_LIBS  := " & strPathXml2 & "/lib/libxml2.lib"

   PrintResult "libxml2", strPathXml2
end sub

''
' Checks if the specified path points to an usable libxml2 or not.
function CheckForXml2Sub(strPathXml2)
   dim str

   CheckForXml2Sub = False
   LogPrint "trying: strPathXml2=" & strPathXml2
   if   LogFileExists(strPathXml2, "include/libxml/xmlexports.h") _
    And LogFileExists(strPathXml2, "include/libxml/xmlreader.h") _
      then
      str = LogFindFile(strPathXml2, "bin/libxml2.dll")
      if str <> "" then
         if LogFindFile(strPathXml2, "lib/libxml2.lib") <> "" then
            CheckForXml2Sub = True
         end if
      end if
   end if
end function


''
' Checks for openssl
sub CheckForSsl(strOptSsl, bln32Bit)
   dim strPathSsl, str
   PrintHdr "openssl"

   strOpenssl = "openssl"
   if bln32Bit = True then
       strOpenssl = "openssl32"
   end if

   '
   ' Part of tarball / svn, so we can exit immediately if no path was specified.
   '
   if (strOptSsl = "") then
      PrintResult strOpenssl, "src/libs/openssl-*"
      exit sub
   end if

   '
   ' Try find some openssl dll/lib.
   '
   strPathSsl = ""
   if (strPathSsl = "") And (strOptSsl <> "") then
      if CheckForSslSub(strOptSsl) then strPathSsl = strOptSsl
   end if

   if strPathSsl = "" Then
      str = Which("libssl.lib")
      if str <> "" Then
         str = PathParent(PathStripFilename(str))
         if CheckForSslSub(str) then strPathSsl = str
      end if
   end if

   ' Ignore failure if we're in 'internal' mode.
   if (strPathSsl = "") and g_blnInternalMode then
      PrintResultMsg strOpenssl, "ignored (internal mode)"
      exit sub
   end if

   ' Success?
   if strPathSsl = "" then
      if strOptSsl = "" then
         MsgError "Can't locate " & strOpenssl & ". " _
                & "Try specify the path with the --with-" & strOpenssl & "=<path> argument. " _
                & "If still no luck, consult the configure.log and the build requirements."
      else
         MsgError "Can't locate " & strOpenssl & ". " _
                & "Please consult the configure.log and the build requirements."
      end if
      exit sub
   end if

   strPathSsl = UnixSlashes(PathAbs(strPathSsl))
   if bln32Bit = True then
      CfgPrint "SDK_VBOX_OPENSSL-x86_INCS := " & strPathSsl & "/include"
      CfgPrint "SDK_VBOX_OPENSSL-x86_LIBS := " & strPathSsl & "/lib/libcrypto.lib" & " " & strPathSsl & "/lib/libssl.lib"
      CfgPrint "SDK_VBOX_BLD_OPENSSL-x86_LIBS := " & strPathSsl & "/lib/libcrypto.lib" & " " & strPathSsl & "/lib/libssl.lib"
   else
      CfgPrint "SDK_VBOX_OPENSSL_INCS := " & strPathSsl & "/include"
      CfgPrint "SDK_VBOX_OPENSSL_LIBS := " & strPathSsl & "/lib/libcrypto.lib" & " " & strPathSsl & "/lib/libssl.lib"
      CfgPrint "SDK_VBOX_BLD_OPENSSL_LIBS := " & strPathSsl & "/lib/libcrypto.lib" & " " & strPathSsl & "/lib/libssl.lib"
   end if

   PrintResult strOpenssl, strPathSsl
end sub

''
' Checks if the specified path points to an usable openssl or not.
function CheckForSslSub(strPathSsl)

   CheckForSslSub = False
   LogPrint "trying: strPathSsl=" & strPathSsl
   if   LogFileExists(strPathSsl, "include/openssl/md5.h") _
    And LogFindFile(strPathSsl, "lib/libssl.lib") <> "" _
      then
         CheckForSslSub = True
      end if
end function


''
' Checks for libcurl
sub CheckForCurl(strOptCurl, bln32Bit)
   dim strPathCurl, str
   PrintHdr "libcurl"

   strCurl = "libcurl"
   if bln32Bit = True then
       strCurl = "libcurl32"
   end if

   '
   ' Part of tarball / svn, so we can exit immediately if no path was specified.
   '
   if (strOptCurl = "") then
      PrintResult strCurl, "src/libs/curl-*"
      exit sub
   end if

   '
   ' Try find some cURL dll/lib.
   '
   strPathCurl = ""
   if (strPathCurl = "") And (strOptCurl <> "") then
      if CheckForCurlSub(strOptCurl) then strPathCurl = strOptCurl
   end if

   if strPathCurl = "" Then
      str = Which("libcurl.lib")
      if str <> "" Then
         str = PathParent(PathStripFilename(str))
         if CheckForCurlSub(str) then strPathCurl = str
      end if
   end if

   ' Ignore failure if we're in 'internal' mode.
   if (strPathCurl = "") and g_blnInternalMode then
      PrintResultMsg strCurl, "ignored (internal mode)"
      exit sub
   end if

   ' Success?
   if strPathCurl = "" then
      if strOptCurl = "" then
         MsgError "Can't locate " & strCurl & ". " _
                & "Try specify the path with the --with-" & strCurl & "=<path> argument. " _
                & "If still no luck, consult the configure.log and the build requirements."
      else
         MsgError "Can't locate " & strCurl & ". " _
                & "Please consult the configure.log and the build requirements."
      end if
      exit sub
   end if

   strPathCurl = UnixSlashes(PathAbs(strPathCurl))
   if bln32Bit = True then
      CfgPrint "SDK_VBOX_LIBCURL-x86_INCS := " & strPathCurl & "/include"
      CfgPrint "SDK_VBOX_LIBCURL-x86_LIBS.x86 := " & strPathCurl & "/libcurl.lib"
   else
      CfgPrint "SDK_VBOX_LIBCURL_INCS := " & strPathCurl & "/include"
      CfgPrint "SDK_VBOX_LIBCURL_LIBS := " & strPathCurl & "/libcurl.lib"
   end if

   PrintResult strCurl, strPathCurl
end sub

''
' Checks if the specified path points to an usable libcurl or not.
function CheckForCurlSub(strPathCurl)

   CheckForCurlSub = False
   LogPrint "trying: strPathCurl=" & strPathCurl
   if   LogFileExists(strPathCurl, "include/curl/curl.h") _
    And LogFindFile(strPathCurl, "libcurl.dll") <> "" _
    And LogFindFile(strPathCurl, "libcurl.lib") <> "" _
      then
         CheckForCurlSub = True
      end if
end function



''
' Checks for any Qt5 binaries.
sub CheckForQt(strOptQt5)
   PrintHdr "Qt5"

   '
   ' Try to find the Qt5 installation (user specified path with --with-qt5)
   '
   strPathQt5 = ""

   LogPrint "Checking for user specified path of Qt5 ... "
   if (strPathQt5 = "") And (strOptQt5 <> "") then
      strOptQt5 = UnixSlashes(strOptQt5)
      if CheckForQt5Sub(strOptQt5) then strPathQt5 = strOptQt5
   end if

   ' Check the dev tools
   if (strPathQt5 = "") Then
      strPathQt5 = g_strPathDev & "/win." & g_strTargetArch & "/qt/v5.5.1-r138"
      if CheckForQt5Sub(strPathQt5) = False then strPathQt5 = ""
   end if

   ' Display the result.
   if strPathQt5 = "" then
      PrintResultMsg "Qt5", "not found"
   else
      PrintResult "Qt5", strPathQt5
   end if

   if strPathQt5 <> "" then
      CfgPrint "PATH_SDK_QT5          := " & strPathQt5
      CfgPrint "PATH_TOOL_QT5         := $(PATH_SDK_QT5)"
      CfgPrint "VBOX_PATH_QT          := $(PATH_SDK_QT5)"
   end if
   if strPathQt5 = "" then
      CfgPrint "VBOX_WITH_QTGUI       :="
   end if
end sub


''
' Checks if the specified path points to an usable Qt5 library.
function CheckForQt5Sub(strPathQt5)

   CheckForQt5Sub = False
   LogPrint "trying: strPathQt5=" & strPathQt5

   if   LogFileExists(strPathQt5, "bin/moc.exe") _
    And LogFileExists(strPathQt5, "bin/uic.exe") _
    And LogFileExists(strPathQt5, "include/QtWidgets/qwidget.h") _
    And LogFileExists(strPathQt5, "include/QtWidgets/QApplication") _
    And LogFileExists(strPathQt5, "include/QtGui/QImage") _
    And LogFileExists(strPathQt5, "include/QtNetwork/QHostAddress") _
    And (   LogFileExists(strPathQt5, "lib/Qt5Core.lib") _
         Or LogFileExists(strPathQt5, "lib/Qt5CoreVBox.lib")) _
    And (   LogFileExists(strPathQt5, "lib/Qt5Network.lib") _
         Or LogFileExists(strPathQt5, "lib/Qt5NetworkVBox.lib")) _
      then
         CheckForQt5Sub = True
   end if

end function


'
'
function CheckForPython(strPathPython)

   PrintHdr "Python"

   CheckForPython = False
   LogPrint "trying: strPathPython=" & strPathPython

   if LogFileExists(strPathPython, "python.exe") then
      CfgPrint "VBOX_BLD_PYTHON       := " & strPathPython & "\python.exe"
      CheckForPython = True
   end if

   PrintResult "Python ", strPathPython
end function


''
' Show usage.
sub usage
   Print "Usage: cscript configure.vbs [options]"
   Print ""
   Print "Configuration:"
   Print "  -h, --help"
   Print "  --internal"
   Print "  --internal-last"
   Print "  --target-arch=x86|amd64"
   Print ""
   Print "Components:"
   Print "  --disable-COM"
   Print "  --disable-UDPTunnel"
   Print "  --disable-SDL"
   Print ""
   Print "Locations:"
   Print "  --with-kBuild=PATH    "
   Print "  --with-libSDL=PATH    "
   Print "  --with-Qt5=PATH       "
   Print "  --with-DDK=PATH       "
   Print "  --with-SDK=PATH       "
   Print "  --with-VC=PATH        "
   Print "  --with-VC-Common=PATH "
   Print "  --with-VC-Express-Edition"
   Print "  --with-W32API=PATH    "
   Print "  --with-libxml2=PATH   "
   Print "  --with-openssl=PATH   "
   Print "  --with-openssl32=PATH (only for 64-bit targets)"
   Print "  --with-libcurl=PATH   "
   Print "  --with-libcurl32=PATH (only for 64-bit targets)"
   Print "  --with-python=PATH    "
end sub


''
' The main() like function.
'
Sub Main
   '
   ' Write the log header and check that we're not using wscript.
   '
   LogInit
   If UCase(Right(Wscript.FullName, 11)) = "WSCRIPT.EXE" Then
      Wscript.Echo "This script must be run under CScript."
      Wscript.Quit(1)
   End If

   '
   ' Parse arguments.
   '
   strOptDDK = ""
   strOptDXDDK = ""
   strOptkBuild = ""
   strOptlibSDL = ""
   strOptQt5 = ""
   strOptSDK = ""
   strOptVC = ""
   strOptVCCommon = ""
   blnOptVCExpressEdition = False
   strOptW32API = ""
   strOptXml2 = ""
   strOptSsl = ""
   strOptSsl32 = ""
   strOptCurl = ""
   strOptCurl32 = ""
   strOptPython = ""
   blnOptDisableCOM = False
   blnOptDisableUDPTunnel = False
   blnOptDisableSDL = False
   for i = 1 to Wscript.Arguments.Count
      dim str, strArg, strPath

      ' Separate argument and path value
      str = Wscript.Arguments.item(i - 1)
      if InStr(1, str, "=") > 0 then
         strArg = Mid(str, 1, InStr(1, str, "=") - 1)
         strPath = Mid(str, InStr(1, str, "=") + 1)
         if strPath = "" then MsgFatal "Syntax error! Argument #" & i & " is missing the path."
      else
         strArg = str
         strPath = ""
      end if

      ' Process the argument
      select case LCase(strArg)
         case "--with-ddk"
            strOptDDK = strPath
         case "--with-dxsdk"
            MsgWarning "Ignoring --with-dxsdk (the DirectX SDK is no longer required)."
         case "--with-kbuild"
            strOptkBuild = strPath
         case "--with-libsdl"
            strOptlibSDL = strPath
         case "--with-mingw32"
            ' ignore
         case "--with-mingw-w64"
            ' ignore
         case "--with-qt5"
            strOptQt5 = strPath
         case "--with-sdk"
            strOptSDK = strPath
         case "--with-vc"
            strOptVC = strPath
         case "--with-vc-common"
            strOptVCCommon = strPath
         case "--with-vc-express-edition"
            blnOptVCExpressEdition = True
         case "--with-w32api"
            strOptW32API = strPath
         case "--with-libxml2"
            strOptXml2 = strPath
         case "--with-openssl"
            strOptSsl = strPath
         case "--with-openssl32"
            strOptSsl32 = strPath
         case "--with-libcurl"
            strOptCurl = strPath
         case "--with-libcurl32"
            strOptCurl32 = strPath
         case "--with-python"
            strOptPython = strPath
         case "--disable-com"
            blnOptDisableCOM = True
         case "--enable-com"
            blnOptDisableCOM = False
         case "--disable-udptunnel"
            blnOptDisableUDPTunnel = True
         case "--disable-sdl"
            blnOptDisableSDL = True
         case "--internal"
            g_blnInternalMode = True
         case "--internal-last"
            g_blnInternalFirst = False
         case "--target-arch"
            g_strTargetArch = strPath
         case "-h", "--help", "-?"
            usage
            Wscript.Quit(0)
         case else
            Wscript.echo "syntax error: Unknown option '" & str &"'."
            usage
            Wscript.Quit(1)
      end select
   next

   '
   ' Initialize output files.
   '
   CfgInit
   EnvInit

   '
   ' Check that the Shell function is sane.
   '
   g_objShell.Environment("PROCESS")("TESTING_ENVIRONMENT_INHERITANCE") = "This works"
   if Shell("set TESTING_ENVIRONMENT_INHERITANC", False) <> 0 then ' The 'E' is missing on purpose (4nt).
      MsgFatal "shell execution test failed!"
   end if
   if g_strShellOutput <> "TESTING_ENVIRONMENT_INHERITANCE=This works" & CHR(13) & CHR(10)  then
      Print "Shell test Test -> '" & g_strShellOutput & "'"
      MsgFatal "shell inheritance or shell execution isn't working right. Make sure you use cmd.exe."
   end if
   g_objShell.Environment("PROCESS")("TESTING_ENVIRONMENT_INHERITANCE") = ""
   Print "Shell inheritance test: OK"

   '
   ' Do the checks.
   '
   if blnOptDisableCOM = True then
      DisableCOM "--disable-com"
   end if
   if blnOptDisableUDPTunnel = True then
      DisableUDPTunnel "--disable-udptunnel"
   end if
   CheckSourcePath
   CheckForkBuild strOptkBuild
   CheckForWinDDK strOptDDK
   CheckForVisualCPP strOptVC, strOptVCCommon, blnOptVCExpressEdition
   CheckForPlatformSDK strOptSDK
   CheckForMidl
   CfgPrint "VBOX_WITH_OPEN_WATCOM := " '' @todo look for openwatcom 1.9+
   CfgPrint "VBOX_WITH_LIBVPX := " '' @todo look for libvpx 1.1.0+
   CfgPrint "VBOX_WITH_LIBOPUS := " '' @todo look for libopus 1.2.1+

   EnvPrintAppend "PATH", DosSlashes(g_strPath & "\tools\win." & g_strHostArch & "\bin"), ";" '' @todo look for yasm
   if g_strHostArch = "amd64" then
      EnvPrintAppend "PATH", DosSlashes(g_strPath & "\tools\win.x86\bin"), ";"
   else
      EnvPrintCleanup "PATH", DosSlashes(g_strPath & "\tools\win.amd64\bin"), ";"
   end if
   if blnOptDisableSDL = True then
      DisableSDL "--disable-sdl"
   else
      CheckForlibSDL strOptlibSDL
   end if
   CheckForXml2 strOptXml2
   CheckForSsl strOptSsl, False
   if g_strTargetArch = "amd64" then
       ' 32-bit openssl required as well
       CheckForSsl strOptSsl32, True
   end if
   CheckForCurl strOptCurl, False
   if g_strTargetArch = "amd64" then
       ' 32-bit Curl required as well
       CheckForCurl strOptCurl32, True
   end if
   CheckForQt strOptQt5
   if (strOptPython <> "") then
     CheckForPython strOptPython
   end if
   if g_blnInternalMode then
      EnvPrint "call " & g_strPathDev & "/env.cmd %1 %2 %3 %4 %5 %6 %7 %8 %9"
   end if

   Print ""
   Print "Execute env.bat once before you start to build VBox:"
   Print ""
   Print "  env.bat"
   Print "  kmk"
   Print ""

End Sub


Main