I have just submitted patch with update for Boost.Build machinery to properly detect Visual Studio 11 (currently available as Developer Preview).
I have very little experience with Boost.Build v2 internals, so the patch may need further improvements. It works in my environment on Windows 7 (64-bit) with Visual Studio 2010 Express Edition installed alongside the Visual Studio 11 Developer Preview.
If you want to use Visual Studio 11 as Boost.Build toolset, just put the following entry in your user-config.jam file:
using msvc : 11.0 ;
To verify if the toolset is recognised correctly, use b2 debugging options:
b2 --debug-configuration --debug-building --debug-generator buffer.cpp
notice: found boost-build.jam at D:/dev/boost/_svn/trunk/boost-build.jam
notice: loading Boost.Build from D:/dev/boost/_svn/trunk/tools/build/v2
notice: Searching C:\Windows C:\Users\mloskot C:\Users\mloskot D:\dev\boost\_svn\trunk\tools/build/v2 D:/dev/boost/_svn/trunk/tools/build/v2/kernel D:/dev/
boost/_svn/trunk/tools/build/v2/util D:/dev/boost/_svn/trunk/tools/build/v2/build D:/dev/boost/_svn/trunk/tools/build/v2/tools D:/dev/boost/_svn/trunk/tool
s/build/v2/contrib D:/dev/boost/_svn/trunk/tools/build/v2/. for site-config configuration file site-config.jam .
notice: Loading site-config configuration file site-config.jam from D:/dev/boost/_svn/trunk/tools/build/v2/site-config.jam .
notice: Searching C:\Users\mloskot C:\Users\mloskot D:\dev\boost\_svn\trunk\tools/build/v2 D:/dev/boost/_svn/trunk/tools/build/v2/kernel D:/dev/boost/_svn/
trunk/tools/build/v2/util D:/dev/boost/_svn/trunk/tools/build/v2/build D:/dev/boost/_svn/trunk/tools/build/v2/tools D:/dev/boost/_svn/trunk/tools/build/v2/
contrib D:/dev/boost/_svn/trunk/tools/build/v2/. for user-config configuration file user-config.jam .
notice: Loading user-config configuration file user-config.jam from C:/Users/mloskot/user-config.jam .
notice: [msvc-cfg] msvc-11.0 detected, command: 'C:\Program Files (x86)\Microsoft Visual Studio 11.0\VC\bin\cl.exe'
notice: [msvc-cfg] msvc-10.0 detected, command: 'C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\bin\cl.exe'
notice: [msvc-cfg] msvc-10.0express detected, command: 'C:\Program Files (x86)\Microsoft Visual Studio 10.0\VC\bin\cl.exe'
notice: will use 'C:\Program Files (x86)\Microsoft Visual Studio 11.0\VC\bin\cl.exe' for msvc, condition <toolset>msvc-11.0
notice: [msvc-cfg] condition: '<toolset>msvc-11.0/<architecture>/<address-model>', setup: 'call "C:\Program Files (x86)\Microsoft Visual Studio 11.0\VC\vcv
arsall.bat" x86 >nul
...
and look for the following message reported:
notice: will use 'C:\Program Files (x86)\Microsoft Visual Studio 11.0\VC\bin\cl.exe' for msvc, condition <toolset>msvc-11.0
