diff --git a/tools/build/v2/engine/build.bat b/tools/build/v2/engine/build.bat
--- a/tools/build/v2/engine/build.bat
+++ b/tools/build/v2/engine/build.bat
@@ -1,532 +1,532 @@
-@ECHO OFF
-
-REM ~ Copyright 2002-2007 Rene Rivera.
-REM ~ Distributed under the Boost Software License, Version 1.0.
-REM ~ (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
-
-setlocal
-goto Start
-
-
-:Set_Error
-color 00
-goto :eof
-
-
-:Clear_Error
-ver >nul
-goto :eof
-
-
-:Error_Print
-REM Output an error message and set the errorlevel to indicate failure.
-setlocal
-ECHO ###
-ECHO ### %1
-ECHO ###
-ECHO ### You can specify the toolset as the argument, i.e.:
-ECHO ###     .\build.bat msvc
-ECHO ###
-ECHO ### Toolsets supported by this script are: borland, como, gcc, gcc-nocygwin,
-ECHO ###     intel-win32, metrowerks, mingw, msvc, vc7, vc8, vc9, vc10
-ECHO ###
-call :Set_Error
-endlocal
-goto :eof
-
-
-:Test_Path
-REM Tests for the given file(executable) presence in the directories in the PATH
-REM environment variable. Additionaly sets FOUND_PATH to the path of the
-REM found file.
-call :Clear_Error
-setlocal
-set test=%~$PATH:1
-endlocal
-if not errorlevel 1 set FOUND_PATH=%~dp$PATH:1
-goto :eof
-
-
-:Test_Option
-REM Tests whether the given string is in the form of an option: "--*"
-call :Clear_Error
-setlocal
-set test=%1
-if not defined test (
-    call :Set_Error
-    goto Test_Option_End
-)
-set test=###%test%###
-set test=%test:"###=%
-set test=%test:###"=%
-set test=%test:###=%
-if not "-" == "%test:~1,1%" call :Set_Error
-:Test_Option_End
-endlocal
-goto :eof
-
-
-:Test_Empty
-REM Tests whether the given string is not empty
-call :Clear_Error
-setlocal
-set test=%1
-if not defined test (
-    call :Clear_Error
-    goto Test_Empty_End
-)
-set test=###%test%###
-set test=%test:"###=%
-set test=%test:###"=%
-set test=%test:###=%
-if not "" == "%test%" call :Set_Error
-:Test_Empty_End
-endlocal
-goto :eof
-
-
-:Call_If_Exists
-if EXIST %1 call %*
-goto :eof
-
-
-:Guess_Toolset
-REM Try and guess the toolset to bootstrap the build with...
-REM Sets BOOST_JAM_TOOLSET to the first found toolset.
-REM May also set BOOST_JAM_TOOLSET_ROOT to the
-REM location of the found toolset.
-
-call :Clear_Error
-call :Test_Empty %ProgramFiles%
-if not errorlevel 1 set ProgramFiles=C:\Program Files
-
-call :Clear_Error
-if NOT "_%VS100COMNTOOLS%_" == "__" (
-    set "BOOST_JAM_TOOLSET=vc10"
-    set "BOOST_JAM_TOOLSET_ROOT=%VS100COMNTOOLS%..\..\VC\"
-    goto :eof)
-call :Clear_Error
-if EXIST "%ProgramFiles%\Microsoft Visual Studio 10.0\VC\VCVARSALL.BAT" (
-    set "BOOST_JAM_TOOLSET=vc10"
-    set "BOOST_JAM_TOOLSET_ROOT=%ProgramFiles%\Microsoft Visual Studio 10.0\VC\"
-    goto :eof)
-call :Clear_Error
-if NOT "_%VS90COMNTOOLS%_" == "__" (
-    set "BOOST_JAM_TOOLSET=vc9"
-    set "BOOST_JAM_TOOLSET_ROOT=%VS90COMNTOOLS%..\..\VC\"
-    goto :eof)
-call :Clear_Error
-if EXIST "%ProgramFiles%\Microsoft Visual Studio 9.0\VC\VCVARSALL.BAT" (
-    set "BOOST_JAM_TOOLSET=vc9"
-    set "BOOST_JAM_TOOLSET_ROOT=%ProgramFiles%\Microsoft Visual Studio 9.0\VC\"
-    goto :eof)
-call :Clear_Error
-if NOT "_%VS80COMNTOOLS%_" == "__" (
-    set "BOOST_JAM_TOOLSET=vc8"
-    set "BOOST_JAM_TOOLSET_ROOT=%VS80COMNTOOLS%..\..\VC\"
-    goto :eof)
-call :Clear_Error
-if EXIST "%ProgramFiles%\Microsoft Visual Studio 8\VC\VCVARSALL.BAT" (
-    set "BOOST_JAM_TOOLSET=vc8"
-    set "BOOST_JAM_TOOLSET_ROOT=%ProgramFiles%\Microsoft Visual Studio 8\VC\"
-    goto :eof)
-call :Clear_Error
-if NOT "_%VS71COMNTOOLS%_" == "__" (
-    set "BOOST_JAM_TOOLSET=vc7"
-    set "BOOST_JAM_TOOLSET_ROOT=%VS71COMNTOOLS%\..\..\VC7\"
-    goto :eof)
-call :Clear_Error
-if NOT "_%VCINSTALLDIR%_" == "__" (
-    REM %VCINSTALLDIR% is also set for VC9 (and probably VC8)
-    set "BOOST_JAM_TOOLSET=vc7"
-    set "BOOST_JAM_TOOLSET_ROOT=%VCINSTALLDIR%\VC7\"
-    goto :eof)
-call :Clear_Error
-if EXIST "%ProgramFiles%\Microsoft Visual Studio .NET 2003\VC7\bin\VCVARS32.BAT" (
-    set "BOOST_JAM_TOOLSET=vc7"
-    set "BOOST_JAM_TOOLSET_ROOT=%ProgramFiles%\Microsoft Visual Studio .NET 2003\VC7\"
-    goto :eof)
-call :Clear_Error
-if EXIST "%ProgramFiles%\Microsoft Visual Studio .NET\VC7\bin\VCVARS32.BAT" (
-    set "BOOST_JAM_TOOLSET=vc7"
-    set "BOOST_JAM_TOOLSET_ROOT=%ProgramFiles%\Microsoft Visual Studio .NET\VC7\"
-    goto :eof)
-call :Clear_Error
-if NOT "_%MSVCDir%_" == "__" (
-    set "BOOST_JAM_TOOLSET=msvc"
-    set "BOOST_JAM_TOOLSET_ROOT=%MSVCDir%\"
-    goto :eof)
-call :Clear_Error
-if EXIST "%ProgramFiles%\Microsoft Visual Studio\VC98\bin\VCVARS32.BAT" (
-    set "BOOST_JAM_TOOLSET=msvc"
-    set "BOOST_JAM_TOOLSET_ROOT=%ProgramFiles%\Microsoft Visual Studio\VC98\"
-    goto :eof)
-call :Clear_Error
-if EXIST "%ProgramFiles%\Microsoft Visual C++\VC98\bin\VCVARS32.BAT" (
-    set "BOOST_JAM_TOOLSET=msvc"
-    set "BOOST_JAM_TOOLSET_ROOT=%ProgramFiles%\Microsoft Visual C++\VC98\"
-    goto :eof)
-call :Clear_Error
-call :Test_Path cl.exe
-if not errorlevel 1 (
-    set "BOOST_JAM_TOOLSET=msvc"
-    set "BOOST_JAM_TOOLSET_ROOT=%FOUND_PATH%..\"
-    goto :eof)
-call :Clear_Error
-call :Test_Path vcvars32.bat
-if not errorlevel 1 (
-    set "BOOST_JAM_TOOLSET=msvc"
-    call "%FOUND_PATH%VCVARS32.BAT"
-    set "BOOST_JAM_TOOLSET_ROOT=%MSVCDir%\"
-    goto :eof)
-call :Clear_Error
-if EXIST "C:\Borland\BCC55\Bin\bcc32.exe" (
-    set "BOOST_JAM_TOOLSET=borland"
-    set "BOOST_JAM_TOOLSET_ROOT=C:\Borland\BCC55\"
-    goto :eof)
-call :Clear_Error
-call :Test_Path bcc32.exe
-if not errorlevel 1 (
-    set "BOOST_JAM_TOOLSET=borland"
-    set "BOOST_JAM_TOOLSET_ROOT=%FOUND_PATH%..\"
-    goto :eof)
-call :Clear_Error
-call :Test_Path icl.exe
-if not errorlevel 1 (
-    set "BOOST_JAM_TOOLSET=intel-win32"
-    set "BOOST_JAM_TOOLSET_ROOT=%FOUND_PATH%..\"
-    goto :eof)
-call :Clear_Error
-if EXIST "C:\MinGW\bin\gcc.exe" (
-    set "BOOST_JAM_TOOLSET=mingw"
-    set "BOOST_JAM_TOOLSET_ROOT=C:\MinGW\"
-    goto :eof)
-call :Clear_Error
-if NOT "_%CWFolder%_" == "__" (
-    set "BOOST_JAM_TOOLSET=metrowerks"
-    set "BOOST_JAM_TOOLSET_ROOT=%CWFolder%\"
-    goto :eof )
-call :Clear_Error
-call :Test_Path mwcc.exe
-if not errorlevel 1 (
-    set "BOOST_JAM_TOOLSET=metrowerks"
-    set "BOOST_JAM_TOOLSET_ROOT=%FOUND_PATH%..\..\"
-    goto :eof)
-call :Clear_Error
-call :Error_Print "Could not find a suitable toolset."
-goto :eof
-
-
-:Guess_Yacc
-REM Tries to find bison or yacc in common places so we can build the grammar.
-call :Clear_Error
-call :Test_Path yacc.exe
-if not errorlevel 1 (
-    set "YACC=yacc -d"
-    goto :eof)
-call :Clear_Error
-call :Test_Path bison.exe
-if not errorlevel 1 (
-    set "YACC=bison -d --yacc"
-    goto :eof)
-call :Clear_Error
-if EXIST "C:\Program Files\GnuWin32\bin\bison.exe" (
-    set "YACC=C:\Program Files\GnuWin32\bin\bison.exe" -d --yacc
-    goto :eof)
-call :Clear_Error
-call :Error_Print "Could not find Yacc to build the Jam grammar."
-goto :eof
-
-
-:Start
-set BOOST_JAM_TOOLSET=
-set BOOST_JAM_ARGS=
-
-REM If no arguments guess the toolset;
-REM or if first argument is an option guess the toolset;
-REM otherwise the argument is the toolset to use.
-call :Clear_Error
-call :Test_Empty %1
-if not errorlevel 1 (
-    call :Guess_Toolset
-    if not errorlevel 1 ( goto Setup_Toolset ) else ( goto Finish )
-)
-
-call :Clear_Error
-call :Test_Option %1
-if not errorlevel 1 (
-    call :Guess_Toolset
-    if not errorlevel 1 ( goto Setup_Toolset ) else ( goto Finish )
-)
-
-call :Clear_Error
-set BOOST_JAM_TOOLSET=%1
-shift
-goto Setup_Toolset
-
-
-:Setup_Toolset
-REM Setup the toolset command and options. This bit of code
-REM needs to be flexible enough to handle both when
-REM the toolset was guessed at and found, or when the toolset
-REM was indicated in the command arguments.
-REM NOTE: The strange multiple "if ?? == _toolset_" tests are that way
-REM because in BAT variables are subsituted only once during a single
-REM command. A complete "if ... ( commands ) else ( commands )"
-REM is a single command, even though it's in multiple lines here.
-:Setup_Args
-call :Clear_Error
-call :Test_Empty %1
-if not errorlevel 1 goto Config_Toolset
-call :Clear_Error
-call :Test_Option %1
-if errorlevel 1 (
-    set BOOST_JAM_ARGS=%BOOST_JAM_ARGS% %1
-    shift
-    goto Setup_Args
-)
-:Config_Toolset
-if NOT "_%BOOST_JAM_TOOLSET%_" == "_metrowerks_" goto Skip_METROWERKS
-if NOT "_%CWFolder%_" == "__" (
-    set "BOOST_JAM_TOOLSET_ROOT=%CWFolder%\"
-    )
-set "PATH=%BOOST_JAM_TOOLSET_ROOT%Other Metrowerks Tools\Command Line Tools;%PATH%"
-set "BOOST_JAM_CC=mwcc -runtime ss -cwd include -DNT -lkernel32.lib -ladvapi32.lib -luser32.lib"
-set "BOOST_JAM_OPT_JAM=-o bootstrap\jam0.exe"
-set "BOOST_JAM_OPT_MKJAMBASE=-o bootstrap\mkjambase0.exe"
-set "BOOST_JAM_OPT_YYACC=-o bootstrap\yyacc0.exe"
-set "_known_=1"
-:Skip_METROWERKS
-if NOT "_%BOOST_JAM_TOOLSET%_" == "_msvc_" goto Skip_MSVC
-if NOT "_%MSVCDir%_" == "__" (
-    set "BOOST_JAM_TOOLSET_ROOT=%MSVCDir%\"
-    )
-call :Call_If_Exists "%BOOST_JAM_TOOLSET_ROOT%bin\VCVARS32.BAT"
-if not "_%BOOST_JAM_TOOLSET_ROOT%_" == "__" (
-    set "PATH=%BOOST_JAM_TOOLSET_ROOT%bin;%PATH%"
-    )
-set "BOOST_JAM_CC=cl /nologo /GZ /Zi /MLd /Fobootstrap/ /Fdbootstrap/ -DNT -DYYDEBUG kernel32.lib advapi32.lib user32.lib"
-set "BOOST_JAM_OPT_JAM=/Febootstrap\jam0"
-set "BOOST_JAM_OPT_MKJAMBASE=/Febootstrap\mkjambase0"
-set "BOOST_JAM_OPT_YYACC=/Febootstrap\yyacc0"
-set "_known_=1"
-:Skip_MSVC
-if NOT "_%BOOST_JAM_TOOLSET%_" == "_vc7_" goto Skip_VC7
-if NOT "_%VS71COMNTOOLS%_" == "__" (
-    set "BOOST_JAM_TOOLSET_ROOT=%VS71COMNTOOLS%..\..\VC7\"
-    )
-if "_%VCINSTALLDIR%_" == "__" call :Call_If_Exists "%BOOST_JAM_TOOLSET_ROOT%bin\VCVARS32.BAT"
-if NOT "_%BOOST_JAM_TOOLSET_ROOT%_" == "__" (
-    if "_%VCINSTALLDIR%_" == "__" (
-        set "PATH=%BOOST_JAM_TOOLSET_ROOT%bin;%PATH%"
-        ) )
-set "BOOST_JAM_CC=cl /nologo /GZ /Zi /MLd /Fobootstrap/ /Fdbootstrap/ -DNT -DYYDEBUG kernel32.lib advapi32.lib user32.lib"
-set "BOOST_JAM_OPT_JAM=/Febootstrap\jam0"
-set "BOOST_JAM_OPT_MKJAMBASE=/Febootstrap\mkjambase0"
-set "BOOST_JAM_OPT_YYACC=/Febootstrap\yyacc0"
-set "_known_=1"
-:Skip_VC7
-if NOT "_%BOOST_JAM_TOOLSET%_" == "_vc8_" goto Skip_VC8
-if NOT "_%VS80COMNTOOLS%_" == "__" (
-    set "BOOST_JAM_TOOLSET_ROOT=%VS80COMNTOOLS%..\..\VC\"
-    )
-if "_%VCINSTALLDIR%_" == "__" call :Call_If_Exists "%BOOST_JAM_TOOLSET_ROOT%VCVARSALL.BAT" %BOOST_JAM_ARGS%
-if NOT "_%BOOST_JAM_TOOLSET_ROOT%_" == "__" (
-    if "_%VCINSTALLDIR%_" == "__" (
-        set "PATH=%BOOST_JAM_TOOLSET_ROOT%bin;%PATH%"
-        ) )
-set "BOOST_JAM_CC=cl /nologo /RTC1 /Zi /MTd /Fobootstrap/ /Fdbootstrap/ -DNT -DYYDEBUG -wd4996 kernel32.lib advapi32.lib user32.lib"
-set "BOOST_JAM_OPT_JAM=/Febootstrap\jam0"
-set "BOOST_JAM_OPT_MKJAMBASE=/Febootstrap\mkjambase0"
-set "BOOST_JAM_OPT_YYACC=/Febootstrap\yyacc0"
-set "_known_=1"
-:Skip_VC8
-if NOT "_%BOOST_JAM_TOOLSET%_" == "_vc9_" goto Skip_VC9
-if NOT "_%VS90COMNTOOLS%_" == "__" (
-    set "BOOST_JAM_TOOLSET_ROOT=%VS90COMNTOOLS%..\..\VC\"
-    )
-if "_%VCINSTALLDIR%_" == "__" call :Call_If_Exists "%BOOST_JAM_TOOLSET_ROOT%VCVARSALL.BAT" %BOOST_JAM_ARGS%
-if NOT "_%BOOST_JAM_TOOLSET_ROOT%_" == "__" (
-    if "_%VCINSTALLDIR%_" == "__" (
-        set "PATH=%BOOST_JAM_TOOLSET_ROOT%bin;%PATH%"
-        ) )
-set "BOOST_JAM_CC=cl /nologo /RTC1 /Zi /MTd /Fobootstrap/ /Fdbootstrap/ -DNT -DYYDEBUG -wd4996 kernel32.lib advapi32.lib user32.lib"
-set "BOOST_JAM_OPT_JAM=/Febootstrap\jam0"
-set "BOOST_JAM_OPT_MKJAMBASE=/Febootstrap\mkjambase0"
-set "BOOST_JAM_OPT_YYACC=/Febootstrap\yyacc0"
-set "_known_=1"
-:Skip_VC9
-if NOT "_%BOOST_JAM_TOOLSET%_" == "_vc10_" goto Skip_VC10
-if NOT "_%VS100COMNTOOLS%_" == "__" (
-    set "BOOST_JAM_TOOLSET_ROOT=%VS100COMNTOOLS%..\..\VC\"
-    )
-if "_%VCINSTALLDIR%_" == "__" call :Call_If_Exists "%BOOST_JAM_TOOLSET_ROOT%VCVARSALL.BAT" %BOOST_JAM_ARGS%
-if NOT "_%BOOST_JAM_TOOLSET_ROOT%_" == "__" (
-    if "_%VCINSTALLDIR%_" == "__" (
-        set "PATH=%BOOST_JAM_TOOLSET_ROOT%bin;%PATH%"
-        ) )
-set "BOOST_JAM_CC=cl /nologo /RTC1 /Zi /MTd /Fobootstrap/ /Fdbootstrap/ -DNT -DYYDEBUG -wd4996 kernel32.lib advapi32.lib user32.lib"
-set "BOOST_JAM_OPT_JAM=/Febootstrap\jam0"
-set "BOOST_JAM_OPT_MKJAMBASE=/Febootstrap\mkjambase0"
-set "BOOST_JAM_OPT_YYACC=/Febootstrap\yyacc0"
-set "_known_=1"
-:Skip_VC10
-if NOT "_%BOOST_JAM_TOOLSET%_" == "_borland_" goto Skip_BORLAND
-if "_%BOOST_JAM_TOOLSET_ROOT%_" == "__" (
-    call :Test_Path bcc32.exe )
-if "_%BOOST_JAM_TOOLSET_ROOT%_" == "__" (
-    if not errorlevel 1 (
-        set "BOOST_JAM_TOOLSET_ROOT=%FOUND_PATH%..\"
-        ) )
-if not "_%BOOST_JAM_TOOLSET_ROOT%_" == "__" (
-    set "PATH=%BOOST_JAM_TOOLSET_ROOT%Bin;%PATH%"
-    )
-set "BOOST_JAM_CC=bcc32 -WC -w- -q -I%BOOST_JAM_TOOLSET_ROOT%Include -L%BOOST_JAM_TOOLSET_ROOT%Lib /DNT -nbootstrap"
-set "BOOST_JAM_OPT_JAM=-ejam0"
-set "BOOST_JAM_OPT_MKJAMBASE=-emkjambasejam0"
-set "BOOST_JAM_OPT_YYACC=-eyyacc0"
-set "_known_=1"
-:Skip_BORLAND
-if NOT "_%BOOST_JAM_TOOLSET%_" == "_como_" goto Skip_COMO
-set "BOOST_JAM_CC=como -DNT"
-set "BOOST_JAM_OPT_JAM=-o bootstrap\jam0.exe"
-set "BOOST_JAM_OPT_MKJAMBASE=-o bootstrap\mkjambase0.exe"
-set "BOOST_JAM_OPT_YYACC=-o bootstrap\yyacc0.exe"
-set "_known_=1"
-:Skip_COMO
-if NOT "_%BOOST_JAM_TOOLSET%_" == "_gcc_" goto Skip_GCC
-set "BOOST_JAM_CC=gcc -DNT"
-set "BOOST_JAM_OPT_JAM=-o bootstrap\jam0.exe"
-set "BOOST_JAM_OPT_MKJAMBASE=-o bootstrap\mkjambase0.exe"
-set "BOOST_JAM_OPT_YYACC=-o bootstrap\yyacc0.exe"
-set "_known_=1"
-:Skip_GCC
-if NOT "_%BOOST_JAM_TOOLSET%_" == "_gcc-nocygwin_" goto Skip_GCC_NOCYGWIN
-set "BOOST_JAM_CC=gcc -DNT -mno-cygwin"
-set "BOOST_JAM_OPT_JAM=-o bootstrap\jam0.exe"
-set "BOOST_JAM_OPT_MKJAMBASE=-o bootstrap\mkjambase0.exe"
-set "BOOST_JAM_OPT_YYACC=-o bootstrap\yyacc0.exe"
-set "_known_=1"
-:Skip_GCC_NOCYGWIN
-if NOT "_%BOOST_JAM_TOOLSET%_" == "_intel-win32_" goto Skip_INTEL_WIN32
-set "BOOST_JAM_CC=icl -DNT /nologo kernel32.lib advapi32.lib user32.lib"
-set "BOOST_JAM_OPT_JAM=/Febootstrap\jam0"
-set "BOOST_JAM_OPT_MKJAMBASE=/Febootstrap\mkjambase0"
-set "BOOST_JAM_OPT_YYACC=/Febootstrap\yyacc0"
-set "_known_=1"
-:Skip_INTEL_WIN32
-if NOT "_%BOOST_JAM_TOOLSET%_" == "_mingw_" goto Skip_MINGW
-if not "_%BOOST_JAM_TOOLSET_ROOT%_" == "__" (
-    set "PATH=%BOOST_JAM_TOOLSET_ROOT%bin;%PATH%"
-    )
-set "BOOST_JAM_CC=gcc -DNT"
-set "BOOST_JAM_OPT_JAM=-o bootstrap\jam0.exe"
-set "BOOST_JAM_OPT_MKJAMBASE=-o bootstrap\mkjambase0.exe"
-set "BOOST_JAM_OPT_YYACC=-o bootstrap\yyacc0.exe"
-set "_known_=1"
-:Skip_MINGW
-call :Clear_Error
-if "_%_known_%_" == "__" (
-    call :Error_Print "Unknown toolset: %BOOST_JAM_TOOLSET%"
-)
-if errorlevel 1 goto Finish
-
-echo ###
-echo ### Using '%BOOST_JAM_TOOLSET%' toolset.
-echo ###
-
-set YYACC_SOURCES=yyacc.c
-set MKJAMBASE_SOURCES=mkjambase.c
-set BJAM_SOURCES=
-set BJAM_SOURCES=%BJAM_SOURCES% command.c compile.c debug.c execnt.c expand.c filent.c glob.c hash.c
-set BJAM_SOURCES=%BJAM_SOURCES% hdrmacro.c headers.c jam.c jambase.c jamgram.c lists.c make.c make1.c
-set BJAM_SOURCES=%BJAM_SOURCES% newstr.c option.c output.c parse.c pathunix.c regexp.c
-set BJAM_SOURCES=%BJAM_SOURCES% rules.c scan.c search.c subst.c timestamp.c variable.c modules.c
-set BJAM_SOURCES=%BJAM_SOURCES% strings.c filesys.c builtins.c md5.c pwd.c class.c w32_getreg.c native.c
-set BJAM_SOURCES=%BJAM_SOURCES% modules/set.c modules/path.c modules/regex.c
-set BJAM_SOURCES=%BJAM_SOURCES% modules/property-set.c modules/sequence.c modules/order.c
-
-set BJAM_UPDATE=
-:Check_Update
-call :Test_Empty %1
-if not errorlevel 1 goto Check_Update_End
-call :Clear_Error
-setlocal
-set test=%1
-set test=###%test%###
-set test=%test:"###=%
-set test=%test:###"=%
-set test=%test:###=%
-if "%test%" == "--update" set BJAM_UPDATE=update
-endlocal
-shift
-if not "_%BJAM_UPDATE%_" == "_update_" goto Check_Update
-:Check_Update_End
-if "_%BJAM_UPDATE%_" == "_update_" (
-    if not exist ".\bootstrap\jam0.exe" (
-        set BJAM_UPDATE=
-    )
-)
-
-@echo ON
-@if "_%BJAM_UPDATE%_" == "_update_" goto Skip_Bootstrap
-if exist bootstrap rd /S /Q bootstrap
-md bootstrap
-@if not exist jamgram.y goto Bootstrap_GrammarPrep
-@if not exist jamgramtab.h goto Bootstrap_GrammarPrep
-@goto Skip_GrammarPrep
-:Bootstrap_GrammarPrep
-%BOOST_JAM_CC% %BOOST_JAM_OPT_YYACC% %YYACC_SOURCES%
-@if not exist ".\bootstrap\yyacc0.exe" goto Skip_GrammarPrep
-.\bootstrap\yyacc0 jamgram.y jamgramtab.h jamgram.yy
-:Skip_GrammarPrep
-@if not exist jamgram.c goto Bootstrap_GrammarBuild
-@if not exist jamgram.h goto Bootstrap_GrammarBuild
-@goto Skip_GrammarBuild
-:Bootstrap_GrammarBuild
-@echo OFF
-if "_%YACC%_" == "__" (
-    call :Guess_Yacc
-)
-if errorlevel 1 goto Finish
-@echo ON
-%YACC% jamgram.y
-@if errorlevel 1 goto Finish
-del /f jamgram.c
-rename y.tab.c jamgram.c
-del /f jamgram.h
-rename y.tab.h jamgram.h
-:Skip_GrammarBuild
-@echo ON
-@if exist jambase.c goto Skip_Jambase
-%BOOST_JAM_CC% %BOOST_JAM_OPT_MKJAMBASE% %MKJAMBASE_SOURCES%
-@if not exist ".\bootstrap\mkjambase0.exe" goto Skip_Jambase
-.\bootstrap\mkjambase0 jambase.c Jambase
-:Skip_Jambase
-%BOOST_JAM_CC% %BOOST_JAM_OPT_JAM% %BJAM_SOURCES%
-:Skip_Bootstrap
-@if not exist ".\bootstrap\jam0.exe" goto Skip_Jam
-@if "_%BJAM_UPDATE%_" == "_update_" goto Skip_Clean
-.\bootstrap\jam0 -f build.jam --toolset=%BOOST_JAM_TOOLSET% "--toolset-root=%BOOST_JAM_TOOLSET_ROOT% " clean
-:Skip_Clean
-@set args=%*
-@echo OFF
-:Set_Args
-setlocal
-call :Test_Empty %args%
-if not errorlevel 1 goto Set_Args_End
-set test=###%args:~0,2%###
-set test=%test:"###=%
-set test=%test:###"=%
-set test=%test:###=%
-set test=%test:~0,1%
-if "-" == "%test%" goto Set_Args_End
-endlocal
-set args=%args:~1%
-goto Set_Args
-:Set_Args_End
-@echo ON
-.\bootstrap\jam0 -f build.jam --toolset=%BOOST_JAM_TOOLSET% "--toolset-root=%BOOST_JAM_TOOLSET_ROOT% " %args%
-:Skip_Jam
-
-:Finish
+@ECHO OFF
+
+REM ~ Copyright 2002-2007 Rene Rivera.
+REM ~ Distributed under the Boost Software License, Version 1.0.
+REM ~ (See accompanying file LICENSE_1_0.txt or http://www.boost.org/LICENSE_1_0.txt)
+
+setlocal
+goto Start
+
+
+:Set_Error
+color 00
+goto :eof
+
+
+:Clear_Error
+ver >nul
+goto :eof
+
+
+:Error_Print
+REM Output an error message and set the errorlevel to indicate failure.
+setlocal
+ECHO ###
+ECHO ### %1
+ECHO ###
+ECHO ### You can specify the toolset as the argument, i.e.:
+ECHO ###     .\build.bat msvc
+ECHO ###
+ECHO ### Toolsets supported by this script are: borland, como, gcc, gcc-nocygwin,
+ECHO ###     intel-win32, metrowerks, mingw, msvc, vc7, vc8, vc9, vc10
+ECHO ###
+call :Set_Error
+endlocal
+goto :eof
+
+
+:Test_Path
+REM Tests for the given file(executable) presence in the directories in the PATH
+REM environment variable. Additionaly sets FOUND_PATH to the path of the
+REM found file.
+call :Clear_Error
+setlocal
+set test=%~$PATH:1
+endlocal
+if not errorlevel 1 set FOUND_PATH=%~dp$PATH:1
+goto :eof
+
+
+:Test_Option
+REM Tests whether the given string is in the form of an option: "--*"
+call :Clear_Error
+setlocal
+set test=%1
+if not defined test (
+    call :Set_Error
+    goto Test_Option_End
+)
+set test=###%test%###
+set test=%test:"###=%
+set test=%test:###"=%
+set test=%test:###=%
+if not "-" == "%test:~1,1%" call :Set_Error
+:Test_Option_End
+endlocal
+goto :eof
+
+
+:Test_Empty
+REM Tests whether the given string is not empty
+call :Clear_Error
+setlocal
+set test=%1
+if not defined test (
+    call :Clear_Error
+    goto Test_Empty_End
+)
+set test=###%test%###
+set test=%test:"###=%
+set test=%test:###"=%
+set test=%test:###=%
+if not "" == "%test%" call :Set_Error
+:Test_Empty_End
+endlocal
+goto :eof
+
+
+:Call_If_Exists
+if EXIST %1 call %*
+goto :eof
+
+
+:Guess_Toolset
+REM Try and guess the toolset to bootstrap the build with...
+REM Sets BOOST_JAM_TOOLSET to the first found toolset.
+REM May also set BOOST_JAM_TOOLSET_ROOT to the
+REM location of the found toolset.
+
+call :Clear_Error
+call :Test_Empty %ProgramFiles%
+if not errorlevel 1 set ProgramFiles=C:\Program Files
+
+call :Clear_Error
+if NOT "_%VS100COMNTOOLS%_" == "__" (
+    set "BOOST_JAM_TOOLSET=vc10"
+    set "BOOST_JAM_TOOLSET_ROOT=%VS100COMNTOOLS%..\..\VC\"
+    goto :eof)
+call :Clear_Error
+if EXIST "%ProgramFiles%\Microsoft Visual Studio 10.0\VC\VCVARSALL.BAT" (
+    set "BOOST_JAM_TOOLSET=vc10"
+    set "BOOST_JAM_TOOLSET_ROOT=%ProgramFiles%\Microsoft Visual Studio 10.0\VC\"
+    goto :eof)
+call :Clear_Error
+if NOT "_%VS90COMNTOOLS%_" == "__" (
+    set "BOOST_JAM_TOOLSET=vc9"
+    set "BOOST_JAM_TOOLSET_ROOT=%VS90COMNTOOLS%..\..\VC\"
+    goto :eof)
+call :Clear_Error
+if EXIST "%ProgramFiles%\Microsoft Visual Studio 9.0\VC\VCVARSALL.BAT" (
+    set "BOOST_JAM_TOOLSET=vc9"
+    set "BOOST_JAM_TOOLSET_ROOT=%ProgramFiles%\Microsoft Visual Studio 9.0\VC\"
+    goto :eof)
+call :Clear_Error
+if NOT "_%VS80COMNTOOLS%_" == "__" (
+    set "BOOST_JAM_TOOLSET=vc8"
+    set "BOOST_JAM_TOOLSET_ROOT=%VS80COMNTOOLS%..\..\VC\"
+    goto :eof)
+call :Clear_Error
+if EXIST "%ProgramFiles%\Microsoft Visual Studio 8\VC\VCVARSALL.BAT" (
+    set "BOOST_JAM_TOOLSET=vc8"
+    set "BOOST_JAM_TOOLSET_ROOT=%ProgramFiles%\Microsoft Visual Studio 8\VC\"
+    goto :eof)
+call :Clear_Error
+if NOT "_%VS71COMNTOOLS%_" == "__" (
+    set "BOOST_JAM_TOOLSET=vc7"
+    set "BOOST_JAM_TOOLSET_ROOT=%VS71COMNTOOLS%\..\..\VC7\"
+    goto :eof)
+call :Clear_Error
+if NOT "_%VCINSTALLDIR%_" == "__" (
+    REM %VCINSTALLDIR% is also set for VC9 (and probably VC8)
+    set "BOOST_JAM_TOOLSET=vc7"
+    set "BOOST_JAM_TOOLSET_ROOT=%VCINSTALLDIR%\VC7\"
+    goto :eof)
+call :Clear_Error
+if EXIST "%ProgramFiles%\Microsoft Visual Studio .NET 2003\VC7\bin\VCVARS32.BAT" (
+    set "BOOST_JAM_TOOLSET=vc7"
+    set "BOOST_JAM_TOOLSET_ROOT=%ProgramFiles%\Microsoft Visual Studio .NET 2003\VC7\"
+    goto :eof)
+call :Clear_Error
+if EXIST "%ProgramFiles%\Microsoft Visual Studio .NET\VC7\bin\VCVARS32.BAT" (
+    set "BOOST_JAM_TOOLSET=vc7"
+    set "BOOST_JAM_TOOLSET_ROOT=%ProgramFiles%\Microsoft Visual Studio .NET\VC7\"
+    goto :eof)
+call :Clear_Error
+if NOT "_%MSVCDir%_" == "__" (
+    set "BOOST_JAM_TOOLSET=msvc"
+    set "BOOST_JAM_TOOLSET_ROOT=%MSVCDir%\"
+    goto :eof)
+call :Clear_Error
+if EXIST "%ProgramFiles%\Microsoft Visual Studio\VC98\bin\VCVARS32.BAT" (
+    set "BOOST_JAM_TOOLSET=msvc"
+    set "BOOST_JAM_TOOLSET_ROOT=%ProgramFiles%\Microsoft Visual Studio\VC98\"
+    goto :eof)
+call :Clear_Error
+if EXIST "%ProgramFiles%\Microsoft Visual C++\VC98\bin\VCVARS32.BAT" (
+    set "BOOST_JAM_TOOLSET=msvc"
+    set "BOOST_JAM_TOOLSET_ROOT=%ProgramFiles%\Microsoft Visual C++\VC98\"
+    goto :eof)
+call :Clear_Error
+call :Test_Path cl.exe
+if not errorlevel 1 (
+    set "BOOST_JAM_TOOLSET=msvc"
+    set "BOOST_JAM_TOOLSET_ROOT=%FOUND_PATH%..\"
+    goto :eof)
+call :Clear_Error
+call :Test_Path vcvars32.bat
+if not errorlevel 1 (
+    set "BOOST_JAM_TOOLSET=msvc"
+    call "%FOUND_PATH%VCVARS32.BAT"
+    set "BOOST_JAM_TOOLSET_ROOT=%MSVCDir%\"
+    goto :eof)
+call :Clear_Error
+if EXIST "C:\Borland\BCC55\Bin\bcc32.exe" (
+    set "BOOST_JAM_TOOLSET=borland"
+    set "BOOST_JAM_TOOLSET_ROOT=C:\Borland\BCC55\"
+    goto :eof)
+call :Clear_Error
+call :Test_Path bcc32.exe
+if not errorlevel 1 (
+    set "BOOST_JAM_TOOLSET=borland"
+    set "BOOST_JAM_TOOLSET_ROOT=%FOUND_PATH%..\"
+    goto :eof)
+call :Clear_Error
+call :Test_Path icl.exe
+if not errorlevel 1 (
+    set "BOOST_JAM_TOOLSET=intel-win32"
+    set "BOOST_JAM_TOOLSET_ROOT=%FOUND_PATH%..\"
+    goto :eof)
+call :Clear_Error
+if EXIST "C:\MinGW\bin\gcc.exe" (
+    set "BOOST_JAM_TOOLSET=mingw"
+    set "BOOST_JAM_TOOLSET_ROOT=C:\MinGW\"
+    goto :eof)
+call :Clear_Error
+if NOT "_%CWFolder%_" == "__" (
+    set "BOOST_JAM_TOOLSET=metrowerks"
+    set "BOOST_JAM_TOOLSET_ROOT=%CWFolder%\"
+    goto :eof )
+call :Clear_Error
+call :Test_Path mwcc.exe
+if not errorlevel 1 (
+    set "BOOST_JAM_TOOLSET=metrowerks"
+    set "BOOST_JAM_TOOLSET_ROOT=%FOUND_PATH%..\..\"
+    goto :eof)
+call :Clear_Error
+call :Error_Print "Could not find a suitable toolset."
+goto :eof
+
+
+:Guess_Yacc
+REM Tries to find bison or yacc in common places so we can build the grammar.
+call :Clear_Error
+call :Test_Path yacc.exe
+if not errorlevel 1 (
+    set "YACC=yacc -d"
+    goto :eof)
+call :Clear_Error
+call :Test_Path bison.exe
+if not errorlevel 1 (
+    set "YACC=bison -d --yacc"
+    goto :eof)
+call :Clear_Error
+if EXIST "C:\Program Files\GnuWin32\bin\bison.exe" (
+    set "YACC=C:\Program Files\GnuWin32\bin\bison.exe" -d --yacc
+    goto :eof)
+call :Clear_Error
+call :Error_Print "Could not find Yacc to build the Jam grammar."
+goto :eof
+
+
+:Start
+set BOOST_JAM_TOOLSET=
+set BOOST_JAM_ARGS=
+
+REM If no arguments guess the toolset;
+REM or if first argument is an option guess the toolset;
+REM otherwise the argument is the toolset to use.
+call :Clear_Error
+call :Test_Empty %1
+if not errorlevel 1 (
+    call :Guess_Toolset
+    if not errorlevel 1 ( goto Setup_Toolset ) else ( goto Finish )
+)
+
+call :Clear_Error
+call :Test_Option %1
+if not errorlevel 1 (
+    call :Guess_Toolset
+    if not errorlevel 1 ( goto Setup_Toolset ) else ( goto Finish )
+)
+
+call :Clear_Error
+set BOOST_JAM_TOOLSET=%1
+shift
+goto Setup_Toolset
+
+
+:Setup_Toolset
+REM Setup the toolset command and options. This bit of code
+REM needs to be flexible enough to handle both when
+REM the toolset was guessed at and found, or when the toolset
+REM was indicated in the command arguments.
+REM NOTE: The strange multiple "if ?? == _toolset_" tests are that way
+REM because in BAT variables are subsituted only once during a single
+REM command. A complete "if ... ( commands ) else ( commands )"
+REM is a single command, even though it's in multiple lines here.
+:Setup_Args
+call :Clear_Error
+call :Test_Empty %1
+if not errorlevel 1 goto Config_Toolset
+call :Clear_Error
+call :Test_Option %1
+if errorlevel 1 (
+    set BOOST_JAM_ARGS=%BOOST_JAM_ARGS% %1
+    shift
+    goto Setup_Args
+)
+:Config_Toolset
+if NOT "_%BOOST_JAM_TOOLSET%_" == "_metrowerks_" goto Skip_METROWERKS
+if NOT "_%CWFolder%_" == "__" (
+    set "BOOST_JAM_TOOLSET_ROOT=%CWFolder%\"
+    )
+set "PATH=%BOOST_JAM_TOOLSET_ROOT%Other Metrowerks Tools\Command Line Tools;%PATH%"
+set "BOOST_JAM_CC=mwcc -runtime ss -cwd include -DNT -lkernel32.lib -ladvapi32.lib -luser32.lib"
+set "BOOST_JAM_OPT_JAM=-o bootstrap\jam0.exe"
+set "BOOST_JAM_OPT_MKJAMBASE=-o bootstrap\mkjambase0.exe"
+set "BOOST_JAM_OPT_YYACC=-o bootstrap\yyacc0.exe"
+set "_known_=1"
+:Skip_METROWERKS
+if NOT "_%BOOST_JAM_TOOLSET%_" == "_msvc_" goto Skip_MSVC
+if NOT "_%MSVCDir%_" == "__" (
+    set "BOOST_JAM_TOOLSET_ROOT=%MSVCDir%\"
+    )
+call :Call_If_Exists "%BOOST_JAM_TOOLSET_ROOT%bin\VCVARS32.BAT"
+if not "_%BOOST_JAM_TOOLSET_ROOT%_" == "__" (
+    set "PATH=%BOOST_JAM_TOOLSET_ROOT%bin;%PATH%"
+    )
+set "BOOST_JAM_CC=cl /nologo /GZ /Zi /MLd /Fobootstrap/ /Fdbootstrap/ -DNT -DYYDEBUG kernel32.lib advapi32.lib user32.lib"
+set "BOOST_JAM_OPT_JAM=/Febootstrap\jam0"
+set "BOOST_JAM_OPT_MKJAMBASE=/Febootstrap\mkjambase0"
+set "BOOST_JAM_OPT_YYACC=/Febootstrap\yyacc0"
+set "_known_=1"
+:Skip_MSVC
+if NOT "_%BOOST_JAM_TOOLSET%_" == "_vc7_" goto Skip_VC7
+if NOT "_%VS71COMNTOOLS%_" == "__" (
+    set "BOOST_JAM_TOOLSET_ROOT=%VS71COMNTOOLS%..\..\VC7\"
+    )
+if "_%VCINSTALLDIR%_" == "__" call :Call_If_Exists "%BOOST_JAM_TOOLSET_ROOT%bin\VCVARS32.BAT"
+if NOT "_%BOOST_JAM_TOOLSET_ROOT%_" == "__" (
+    if "_%VCINSTALLDIR%_" == "__" (
+        set "PATH=%BOOST_JAM_TOOLSET_ROOT%bin;%PATH%"
+        ) )
+set "BOOST_JAM_CC=cl /nologo /GZ /Zi /MLd /Fobootstrap/ /Fdbootstrap/ -DNT -DYYDEBUG kernel32.lib advapi32.lib user32.lib"
+set "BOOST_JAM_OPT_JAM=/Febootstrap\jam0"
+set "BOOST_JAM_OPT_MKJAMBASE=/Febootstrap\mkjambase0"
+set "BOOST_JAM_OPT_YYACC=/Febootstrap\yyacc0"
+set "_known_=1"
+:Skip_VC7
+if NOT "_%BOOST_JAM_TOOLSET%_" == "_vc8_" goto Skip_VC8
+if NOT "_%VS80COMNTOOLS%_" == "__" (
+    set "BOOST_JAM_TOOLSET_ROOT=%VS80COMNTOOLS%..\..\VC\"
+    )
+if "_%VCINSTALLDIR%_" == "__" call :Call_If_Exists "%BOOST_JAM_TOOLSET_ROOT%VCVARSALL.BAT" %BOOST_JAM_ARGS%
+if NOT "_%BOOST_JAM_TOOLSET_ROOT%_" == "__" (
+    if "_%VCINSTALLDIR%_" == "__" (
+        set "PATH=%BOOST_JAM_TOOLSET_ROOT%bin;%PATH%"
+        ) )
+set "BOOST_JAM_CC=cl /nologo /RTC1 /Zi /MTd /Fobootstrap/ /Fdbootstrap/ -DNT -DYYDEBUG -wd4996 kernel32.lib advapi32.lib user32.lib"
+set "BOOST_JAM_OPT_JAM=/Febootstrap\jam0"
+set "BOOST_JAM_OPT_MKJAMBASE=/Febootstrap\mkjambase0"
+set "BOOST_JAM_OPT_YYACC=/Febootstrap\yyacc0"
+set "_known_=1"
+:Skip_VC8
+if NOT "_%BOOST_JAM_TOOLSET%_" == "_vc9_" goto Skip_VC9
+if NOT "_%VS90COMNTOOLS%_" == "__" (
+    set "BOOST_JAM_TOOLSET_ROOT=%VS90COMNTOOLS%..\..\VC\"
+    )
+if "_%VCINSTALLDIR%_" == "__" call :Call_If_Exists "%BOOST_JAM_TOOLSET_ROOT%VCVARSALL.BAT" %BOOST_JAM_ARGS%
+if NOT "_%BOOST_JAM_TOOLSET_ROOT%_" == "__" (
+    if "_%VCINSTALLDIR%_" == "__" (
+        set "PATH=%BOOST_JAM_TOOLSET_ROOT%bin;%PATH%"
+        ) )
+set "BOOST_JAM_CC=cl /nologo /RTC1 /Zi /MTd /Fobootstrap/ /Fdbootstrap/ -DNT -DYYDEBUG -wd4996 kernel32.lib advapi32.lib user32.lib"
+set "BOOST_JAM_OPT_JAM=/Febootstrap\jam0"
+set "BOOST_JAM_OPT_MKJAMBASE=/Febootstrap\mkjambase0"
+set "BOOST_JAM_OPT_YYACC=/Febootstrap\yyacc0"
+set "_known_=1"
+:Skip_VC9
+if NOT "_%BOOST_JAM_TOOLSET%_" == "_vc10_" goto Skip_VC10
+if NOT "_%VS100COMNTOOLS%_" == "__" (
+    set "BOOST_JAM_TOOLSET_ROOT=%VS100COMNTOOLS%..\..\VC\"
+    )
+if "_%VCINSTALLDIR%_" == "__" call :Call_If_Exists "%BOOST_JAM_TOOLSET_ROOT%VCVARSALL.BAT" %BOOST_JAM_ARGS%
+if NOT "_%BOOST_JAM_TOOLSET_ROOT%_" == "__" (
+    if "_%VCINSTALLDIR%_" == "__" (
+        set "PATH=%BOOST_JAM_TOOLSET_ROOT%bin;%PATH%"
+        ) )
+set "BOOST_JAM_CC=cl /nologo /RTC1 /Zi /MTd /Fobootstrap/ /Fdbootstrap/ -DNT -DYYDEBUG -wd4996 kernel32.lib advapi32.lib user32.lib"
+set "BOOST_JAM_OPT_JAM=/Febootstrap\jam0"
+set "BOOST_JAM_OPT_MKJAMBASE=/Febootstrap\mkjambase0"
+set "BOOST_JAM_OPT_YYACC=/Febootstrap\yyacc0"
+set "_known_=1"
+:Skip_VC10
+if NOT "_%BOOST_JAM_TOOLSET%_" == "_borland_" goto Skip_BORLAND
+if "_%BOOST_JAM_TOOLSET_ROOT%_" == "__" (
+    call :Test_Path bcc32.exe )
+if "_%BOOST_JAM_TOOLSET_ROOT%_" == "__" (
+    if not errorlevel 1 (
+        set "BOOST_JAM_TOOLSET_ROOT=%FOUND_PATH%..\"
+        ) )
+if not "_%BOOST_JAM_TOOLSET_ROOT%_" == "__" (
+    set "PATH=%BOOST_JAM_TOOLSET_ROOT%Bin;%PATH%"
+    )
+set "BOOST_JAM_CC=bcc32 -WC -w- -q -I%BOOST_JAM_TOOLSET_ROOT%Include -L%BOOST_JAM_TOOLSET_ROOT%Lib /DNT -nbootstrap"
+set "BOOST_JAM_OPT_JAM=-ejam0"
+set "BOOST_JAM_OPT_MKJAMBASE=-emkjambasejam0"
+set "BOOST_JAM_OPT_YYACC=-eyyacc0"
+set "_known_=1"
+:Skip_BORLAND
+if NOT "_%BOOST_JAM_TOOLSET%_" == "_como_" goto Skip_COMO
+set "BOOST_JAM_CC=como -DNT"
+set "BOOST_JAM_OPT_JAM=-o bootstrap\jam0.exe"
+set "BOOST_JAM_OPT_MKJAMBASE=-o bootstrap\mkjambase0.exe"
+set "BOOST_JAM_OPT_YYACC=-o bootstrap\yyacc0.exe"
+set "_known_=1"
+:Skip_COMO
+if NOT "_%BOOST_JAM_TOOLSET%_" == "_gcc_" goto Skip_GCC
+set "BOOST_JAM_CC=gcc -DNT"
+set "BOOST_JAM_OPT_JAM=-o bootstrap\jam0.exe"
+set "BOOST_JAM_OPT_MKJAMBASE=-o bootstrap\mkjambase0.exe"
+set "BOOST_JAM_OPT_YYACC=-o bootstrap\yyacc0.exe"
+set "_known_=1"
+:Skip_GCC
+if NOT "_%BOOST_JAM_TOOLSET%_" == "_gcc-nocygwin_" goto Skip_GCC_NOCYGWIN
+set "BOOST_JAM_CC=gcc -DNT -mno-cygwin"
+set "BOOST_JAM_OPT_JAM=-o bootstrap\jam0.exe"
+set "BOOST_JAM_OPT_MKJAMBASE=-o bootstrap\mkjambase0.exe"
+set "BOOST_JAM_OPT_YYACC=-o bootstrap\yyacc0.exe"
+set "_known_=1"
+:Skip_GCC_NOCYGWIN
+if NOT "_%BOOST_JAM_TOOLSET%_" == "_intel-win32_" goto Skip_INTEL_WIN32
+set "BOOST_JAM_CC=icl -DNT /nologo kernel32.lib advapi32.lib user32.lib"
+set "BOOST_JAM_OPT_JAM=/Febootstrap\jam0"
+set "BOOST_JAM_OPT_MKJAMBASE=/Febootstrap\mkjambase0"
+set "BOOST_JAM_OPT_YYACC=/Febootstrap\yyacc0"
+set "_known_=1"
+:Skip_INTEL_WIN32
+if NOT "_%BOOST_JAM_TOOLSET%_" == "_mingw_" goto Skip_MINGW
+if not "_%BOOST_JAM_TOOLSET_ROOT%_" == "__" (
+    set "PATH=%BOOST_JAM_TOOLSET_ROOT%bin;%PATH%"
+    )
+set "BOOST_JAM_CC=gcc -DNT"
+set "BOOST_JAM_OPT_JAM=-o bootstrap\jam0.exe"
+set "BOOST_JAM_OPT_MKJAMBASE=-o bootstrap\mkjambase0.exe"
+set "BOOST_JAM_OPT_YYACC=-o bootstrap\yyacc0.exe"
+set "_known_=1"
+:Skip_MINGW
+call :Clear_Error
+if "_%_known_%_" == "__" (
+    call :Error_Print "Unknown toolset: %BOOST_JAM_TOOLSET%"
+)
+if errorlevel 1 goto Finish
+
+echo ###
+echo ### Using '%BOOST_JAM_TOOLSET%' toolset.
+echo ###
+
+set YYACC_SOURCES=yyacc.c
+set MKJAMBASE_SOURCES=mkjambase.c
+set BJAM_SOURCES=
+set BJAM_SOURCES=%BJAM_SOURCES% command.c compile.c debug.c execnt.c expand.c filent.c glob.c hash.c
+set BJAM_SOURCES=%BJAM_SOURCES% hdrmacro.c headers.c jam.c jambase.c jamgram.c lists.c make.c make1.c
+set BJAM_SOURCES=%BJAM_SOURCES% newstr.c option.c output.c parse.c pathunix.c regexp.c
+set BJAM_SOURCES=%BJAM_SOURCES% rules.c scan.c search.c subst.c timestamp.c variable.c modules.c
+set BJAM_SOURCES=%BJAM_SOURCES% strings.c filesys.c builtins.c md5.c pwd.c class.c w32_getreg.c native.c
+set BJAM_SOURCES=%BJAM_SOURCES% modules/set.c modules/path.c modules/regex.c
+set BJAM_SOURCES=%BJAM_SOURCES% modules/property-set.c modules/sequence.c modules/order.c
+
+set BJAM_UPDATE=
+:Check_Update
+call :Test_Empty %1
+if not errorlevel 1 goto Check_Update_End
+call :Clear_Error
+setlocal
+set test=%1
+set test=###%test%###
+set test=%test:"###=%
+set test=%test:###"=%
+set test=%test:###=%
+if "%test%" == "--update" set BJAM_UPDATE=update
+endlocal
+shift
+if not "_%BJAM_UPDATE%_" == "_update_" goto Check_Update
+:Check_Update_End
+if "_%BJAM_UPDATE%_" == "_update_" (
+    if not exist ".\bootstrap\jam0.exe" (
+        set BJAM_UPDATE=
+    )
+)
+
+@echo ON
+@if "_%BJAM_UPDATE%_" == "_update_" goto Skip_Bootstrap
+if exist bootstrap rd /S /Q bootstrap
+md bootstrap
+@if not exist jamgram.y goto Bootstrap_GrammarPrep
+@if not exist jamgramtab.h goto Bootstrap_GrammarPrep
+@goto Skip_GrammarPrep
+:Bootstrap_GrammarPrep
+%BOOST_JAM_CC% %BOOST_JAM_OPT_YYACC% %YYACC_SOURCES%
+@if not exist ".\bootstrap\yyacc0.exe" goto Skip_GrammarPrep
+.\bootstrap\yyacc0 jamgram.y jamgramtab.h jamgram.yy
+:Skip_GrammarPrep
+@if not exist jamgram.c goto Bootstrap_GrammarBuild
+@if not exist jamgram.h goto Bootstrap_GrammarBuild
+@goto Skip_GrammarBuild
+:Bootstrap_GrammarBuild
+@echo OFF
+if "_%YACC%_" == "__" (
+    call :Guess_Yacc
+)
+if errorlevel 1 goto Finish
+@echo ON
+%YACC% jamgram.y
+@if errorlevel 1 goto Finish
+del /f jamgram.c
+rename y.tab.c jamgram.c
+del /f jamgram.h
+rename y.tab.h jamgram.h
+:Skip_GrammarBuild
+@echo ON
+@if exist jambase.c goto Skip_Jambase
+%BOOST_JAM_CC% %BOOST_JAM_OPT_MKJAMBASE% %MKJAMBASE_SOURCES%
+@if not exist ".\bootstrap\mkjambase0.exe" goto Skip_Jambase
+.\bootstrap\mkjambase0 jambase.c Jambase
+:Skip_Jambase
+%BOOST_JAM_CC% %BOOST_JAM_OPT_JAM% %BJAM_SOURCES%
+:Skip_Bootstrap
+@if not exist ".\bootstrap\jam0.exe" goto Skip_Jam
+@if "_%BJAM_UPDATE%_" == "_update_" goto Skip_Clean
+.\bootstrap\jam0 -f build.jam --toolset=%BOOST_JAM_TOOLSET% "--toolset-root=%BOOST_JAM_TOOLSET_ROOT% " clean
+:Skip_Clean
+@set args=%*
+@echo OFF
+:Set_Args
+setlocal
+call :Test_Empty %args%
+if not errorlevel 1 goto Set_Args_End
+set test=###%args:~0,2%###
+set test=%test:"###=%
+set test=%test:###"=%
+set test=%test:###=%
+set test=%test:~0,1%
+if "-" == "%test%" goto Set_Args_End
+endlocal
+set args=%args:~1%
+goto Set_Args
+:Set_Args_End
+@echo ON
+.\bootstrap\jam0 -f build.jam --toolset=%BOOST_JAM_TOOLSET% "--toolset-root=%BOOST_JAM_TOOLSET_ROOT% " %args%
+:Skip_Jam
+
+:Finish