title: Not able to find user_config.jam while installing boost libraries
body: <p>I'm trying to compile a Kinect v2 point cloud example created by someone else, on windows 8.1. This Visual studio example has a dependency on a library called </p>
  
  <blockquote>
    <p>libboost_mpi-vc120-mt-gd-1_57.lib</p>
  </blockquote>
  
  <p>I googled for a long time but did not find a downloadable version of this pre-compiled library (there are downloadable versions of pre-compiled boost libraries, but they don't contain binaries for the boost MPI library), so I decided to build one. Every time I try to build boost library it says </p>
  
  <pre><code>"warning: skipping optional Message Passing Interface (MPI) library.
  note: to enable MPI support, add "using mpi ;" to user-config.jam."
  </code></pre>
  
  <p>Every forum as well as the boost documentation I checked says that user-config.jam needs to be modified and adding <code>'using mpi;'</code> to it compiles the libs for mpi. </p>
  
  <p>However I'm not able to find a file called user-config.jam anywhere the boost folder (except one site-config.jam and one user-config.jam in <code>pathto\boost_1_57_0\tools\build\example\</code>). </p>
  
  <p>All forums say there should be a user-config.jam in <code>pathto\boost_1_57_0\tools\build\</code> but I did not find any. So I created my own user-config.jam in that location and added <code>'using mpi;'</code> to that file but it still doesn't compile the mpi libs. I also tried putting one user-config.jam in <code>pathto\boost_1_57_0</code> and installing again from the <code>pathto\boost_1_57_0</code> but I get the same result (i.e. no MPI binaries anywhere).</p>
  
  <p>The way I'm building is as mentioned on the official documentation <a href="http://www.boost.org/doc/libs/1_55_0/doc/html/bbv2/installation.html" rel="nofollow">here</a>. Even though the documentation says boost cannot build without user-config.jam, I was actually able to build it from the pathto\boost_1_57_0 folder; so I'm stumped as to what's going on.</p>
  
  <p>Is there anything I'm missing. All this is just because the VStudio project has a dependency on that one lib file. And the one lib file I need belongs to the one library boost isn't building :(. If anyone has it (libboost_mpi-vc120-mt-gd-1_57.lib) and can attach it that'll be great as well :). Thanks in advance</p>