<p>Ok, great, I am happy to add this.  I made a few changes after the merge.  <a href="https://github.com/mlpack/mlpack/commit/77d098c4774107e1b71e214dcc56abf99c425abb" class="commit-link"><tt>77d098c</tt></a> removes the <code>HAS_OPENMP</code> CMake variable (but not the compiler definition), since it isn't used anywhere.  Let me know if that causes any problems; maybe I misunderstood where you are using it.  (Note that the line <code>SET(HAS_OPENMP 1)</code> sets the CMake variable, but <code>add_definitions(-DHAS_OPENMP)</code> makes <code>HAS_OPENMP</code> available as a macro in the code.)</p>

<p><a href="https://github.com/mlpack/mlpack/commit/ca1e3ecba3412a14ff25b2ac16011dd8f2a3bfef" class="commit-link"><tt>ca1e3ec</tt></a> and <a href="https://github.com/mlpack/mlpack/commit/aaefadd7cfd1f0f7d4ad0118d7e23cea76383397" class="commit-link"><tt>aaefadd</tt></a> are minor style fixes, but the last one, <a href="https://github.com/mlpack/mlpack/commit/44c7c3578f5fddb1dc15b42e8c52861ba987a37e" class="commit-link"><tt>44c7c35</tt></a>, concerns me a bit; I changed the line <code>avgIndicesReturned = avgIndicesReturned + refIndices.n_elem</code> to <code>avgIndicesReturned += refIndices.n_elem</code>.  It worked on my system, and it appears that it worked on AppVeyor, but maybe there is something I overlooked, so let me know if there is.  I guess we will find out soon enough if I broke anything like this!</p>

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