title: XGboost installation error in Mac OS X Sierra
body: <p>Am trying to install Xgboost on my Mac. Python version is 3.6 </p>
  
  <pre><code>sudo pip install xgboost
  </code></pre>
  
  <p>am getting the following error</p>
  
  <p><pre><code>    Complete output from command python setup.py egg_info:
      rm -f -rf build build_plugin lib bin *~ <em>/</em>~ <em>/</em>/*~ <em>/</em>/<em>/</em>~ <em>/</em>.o <em>/</em>/*.o <em>/</em>/<em>/</em>.o xgboost
      clang-omp++ -std=c++0x -Wall -O3 -msse2  -Wno-unknown-pragmas -funroll-loops -Iinclude   -Idmlc-core/include -Irabit/include -fPIC -fopenmp -MM -MT build/learner.o src/learner.cc >build/learner.d
      /bin/sh: clang-omp++: command not found
      make: <strong>* [build/learner.o] Error 127
      make: <em></strong> Waiting for unfinished jobs....
      clang-omp++ -std=c++0x -Wall -O3 -msse2  -Wno-unknown-pragmas -funroll-loops -Iinclude   -Idmlc-core/include -Irabit/include -fPIC -fopenmp -MM -MT build/logging.o src/logging.cc >build/logging.d
      /bin/sh: clang-omp++: command not found
      make: <strong></em> [build/logging.o] Error 127
      -----------------------------
      Building multi-thread xgboost failed
      Start to build single-thread xgboost
      rm -f -rf build build_plugin lib bin *~ <em>/</em>~ <em>/</em>/*~ <em>/</em>/<em>/</em>~ <em>/</em>.o <em>/</em>/*.o <em>/</em>/<em>/</em>.o xgboost
      clang-omp++ -std=c++0x -Wall -O3 -msse2  -Wno-unknown-pragmas -funroll-loops -Iinclude   -Idmlc-core/include -Irabit/include -fPIC -fopenmp -MM -MT build/learner.o src/learner.cc >build/learner.d
      /bin/sh: clang-omp++: command not found
      make: <em></strong> [build/learner.o] Error 127
      make: <strong></em> Waiting for unfinished jobs....
      clang-omp++ -std=c++0x -Wall -O3 -msse2  -Wno-unknown-pragmas -funroll-loops -Iinclude   -Idmlc-core/include -Irabit/include -fPIC -fopenmp -MM -MT build/logging.o src/logging.cc >build/logging.d
      /bin/sh: clang-omp++: command not found
      make: *</strong> [build/logging.o] Error 127
      Successfully build single-thread xgboost
      If you want multi-threaded version
      See additional instructions in doc/build.md
      Traceback (most recent call last):
        File "", line 1, in 
        File "/private/tmp/pip-build-TCLoWG/xgboost/setup.py", line 29, in 
          LIB_PATH = libpath'find_lib_path'
        File "/private/tmp/pip-build-TCLoWG/xgboost/xgboost/libpath.py", line 45, in find_lib_path
          'List of candidates:\n' + ('\n'.join(dll_path)))
      <strong>builtin</strong>.XGBoostLibraryNotFound: Cannot find XGBoost Libarary in the candicate path, did you install compilers and run build.sh in root path?
      List of candidates:
      /private/tmp/pip-build-TCLoWG/xgboost/xgboost/libxgboost.so
      /private/tmp/pip-build-TCLoWG/xgboost/xgboost/../../lib/libxgboost.so
      /private/tmp/pip-build-TCLoWG/xgboost/xgboost/./lib/libxgboost.so</p>
  
  <p></pre></code></p>
  
  <p>This is what happening, I don't know what's happening.</p>