<div dir="ltr"><div class="gmail_quote"><div dir="ltr">Hi,<br></div><div dir="ltr"><div><br></div><div>I&#39;m trying to build Boost 1.60 with Visual Studio 2015 Update 1 in 64-bit mode but it seems to be ignoring the address-model=64 parameter and always builds a 32-bit version (I called b2 from the VS2015 Native tools for x64 command prompt):</div><div><br></div><div>--</div><div>C:\Users\Tiago\code\boost_1_60_0&gt;<b>b2 --toolset=msvc-14.0 variant=release link=static threading=multi address-model=64 architecture=x86</b></div><div>Performing configuration checks</div><div><br></div><div>    <b>- 32-bit                   : yes</b></div><div>    - arm                      : no</div><div>    - mips1                    : no</div><div>    - power                    : no</div><div>    - sparc                    : no</div><div>    - x86                      : yes</div><div>....</div><div><br></div><div>C:\Users\Tiago\code\boost_1_60_0&gt;<b>cl</b><br></div><div><div>Microsoft (R) C/C++ Optimizing Compiler <b>Version 19.00.23506 for x64</b></div><div>Copyright (C) Microsoft Corporation.  All rights reserved.</div><div><br></div><div>usage: cl [ option... ] filename... [ /link linkoption... ]</div></div><div><br></div><div>---</div><div><br></div><div>I saw in some ond discussion mentions to explicitly select the compiler version (I also have VS2010 and VS2012 installed) and environment variables batch file (in the project-config.jam file) but this didn&#39;t help either.</div><div><br></div><div>Any help is really appreciated.</div><div><br></div><div>Best regards,</div><div>Tiago Gehring</div></div></div></div>