c:\temp\boost_1_67_0\boost_1_67_0>bootstrap.bat
Building Boost.Build engine

Failed to build Boost.Build engine.
Please consult bootstrap.log for further diagnostics.

c:\temp\boost_1_67_0\boost_1_67_0>cat bootstrap.bat
@ECHO OFF

SETLOCAL

REM Copyright (C) 2009 Vladimir Prus
REM
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)

ECHO Building Boost.Build engine
if exist ".\tools\build\src\engine\bin.ntx86\b2.exe" del tools\build\src\engine\bin.ntx86\b2.exe
if exist ".\tools\build\src\engine\bin.ntx86\bjam.exe" del tools\build\src\engine\bin.ntx86\bjam.exe
if exist ".\tools\build\src\engine\bin.ntx86_64\b2.exe" del tools\build\src\engine\bin.ntx86_64\b2.exe
if exist ".\tools\build\src\engine\bin.ntx86_64\bjam.exe" del tools\build\src\engine\bin.ntx86_64\bjam.exe
pushd tools\build\src\engine

call .\build.bat %* > ..\..\..\..\bootstrap.log
@ECHO OFF

popd

if exist ".\tools\build\src\engine\bin.ntx86\bjam.exe" (
   copy .\tools\build\src\engine\bin.ntx86\b2.exe . > nul
   copy .\tools\build\src\engine\bin.ntx86\bjam.exe . > nul
   goto :bjam_built)

if exist ".\tools\build\src\engine\bin.ntx86_64\bjam.exe" (
   copy .\tools\build\src\engine\bin.ntx86_64\b2.exe . > nul
   copy .\tools\build\src\engine\bin.ntx86_64\bjam.exe . > nul
   goto :bjam_built)

goto :bjam_failure

:bjam_built

REM Ideally, we should obtain the toolset that build.bat has
REM guessed. However, it uses setlocal at the start and does not
REM export BOOST_JAM_TOOLSET, and I don't know how to do that
REM properly. Default to msvc if not specified.

SET TOOLSET=msvc

IF "%1"=="gcc" SET TOOLSET=gcc

IF "%1"=="vc71" SET TOOLSET=msvc : 7.1
IF "%1"=="vc8" SET TOOLSET=msvc : 8.0
IF "%1"=="vc9" SET TOOLSET=msvc : 9.0
IF "%1"=="vc10" SET TOOLSET=msvc : 10.0
IF "%1"=="vc11" SET TOOLSET=msvc : 11.0
IF "%1"=="vc12" SET TOOLSET=msvc : 12.0
IF "%1"=="vc14" SET TOOLSET=msvc : 14.0
IF "%1"=="vc141" SET TOOLSET=msvc : 14.1

ECHO import option ; > project-config.jam
ECHO. >> project-config.jam
ECHO using %TOOLSET% ; >> project-config.jam
ECHO. >> project-config.jam
ECHO option.set keep-going : false ; >> project-config.jam
ECHO. >> project-config.jam

ECHO.
ECHO Bootstrapping is done. To build, run:
ECHO.
ECHO     .\b2
ECHO.
ECHO To adjust configuration, edit 'project-config.jam'.
ECHO Further information:
ECHO.
ECHO     - Command line help:
ECHO     .\b2 --help
ECHO.
ECHO     - Getting started guide:
ECHO     http://boost.org/more/getting_started/windows.html
ECHO.
ECHO     - Boost.Build documentation:
ECHO     http://www.boost.org/build/doc/html/index.html
ECHO.

goto :end

:bjam_failure

ECHO.
ECHO Failed to build Boost.Build engine.
ECHO Please consult bootstrap.log for further diagnostics.
ECHO.

REM Set an error code to allow `bootstrap && b2`
cmd /c exit /b 1 > nul

:end

c:\temp\boost_1_67_0\boost_1_67_0>cat bootstrap.log
**********************************************************************
** Visual Studio 2017 Developer Command Prompt v15.6.4
** Copyright (c) 2017 Microsoft Corporation
**********************************************************************
[vcvarsall.bat] Environment initialized for: 'x86'
###
### Using 'vc141' toolset.
###

c:\temp\boost_1_67_0\boost_1_67_0\tools\build\src\engine>if exist bootstrap rd /S /Q bootstrap

c:\temp\boost_1_67_0\boost_1_67_0\tools\build\src\engine>md bootstrap

c:\temp\boost_1_67_0\boost_1_67_0\tools\build\src\engine>cl /nologo /RTC1 /Zi /MTd /Fobootstrap/ /Fdbootstrap/ -DNT -DYYDEBUG -wd4996 kernel32.lib advapi32.lib user32.lib /Febootstrap\jam0  command.c compile.c constants.c debug.c execcmd.c execnt.c filent.c frames.c function.c glob.c hash.c hdrmacro.c headers.c jam.c jambase.c jamgram.c lists.c make.c make1.c object.c option.c output.c parse.c pathnt.c pathsys.c regexp.c rules.c scan.c search.c subst.c timestamp.c variable.c modules.c strings.c filesys.c builtins.c md5.c class.c cwd.c w32_getreg.c native.c modules/set.c modules/path.c modules/regex.c modules/property-set.c modules/sequence.c modules/order.c
command.c
compile.c
constants.c
debug.c
execcmd.c
execnt.c
filent.c
frames.c
function.c
glob.c
hash.c
hdrmacro.c
headers.c
jam.c
jambase.c
jamgram.c
lists.c
make.c
make1.c
object.c
Generating Code...
Compiling...
option.c
output.c
parse.c
pathnt.c
pathsys.c
regexp.c
rules.c
scan.c
search.c
subst.c
timestamp.c
variable.c
modules.c
strings.c
filesys.c
builtins.c
md5.c
class.c
cwd.c
w32_getreg.c
Generating Code...
Compiling...
native.c
set.c
path.c
regex.c
property-set.c
sequence.c
order.c
Generating Code...

c:\temp\boost_1_67_0\boost_1_67_0\tools\build\src\engine>.\bootstrap\jam0 -f build.jam --toolset=vc141 "--toolset-root=C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\Common7\Tools\..\..\VC\ "  clean
...found 1 target...
...updating 1 target...
...updated 1 target...

c:\temp\boost_1_67_0\boost_1_67_0\tools\build\src\engine>.\bootstrap\jam0 -f build.jam --toolset=vc141 "--toolset-root=C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\Common7\Tools\..\..\VC\ "
...found 161 targets...
...updating 3 targets...
[MKDIR] bin.ntx86
A subdirectory or file bin.ntx86 already exists.

    md "bin.ntx86"

...failed [MKDIR] bin.ntx86...
...skipped b2.exe for lack of bin.ntx86...
...skipped bjam.exe for lack of b2.exe...
...failed updating 1 target...
...skipped 2 targets...

c:\temp\boost_1_67_0\boost_1_67_0\tools\build\src\engine>exit /b 1

c:\temp\boost_1_67_0\boost_1_67_0>