XGboost installation error in Mac OS X Sierra

Question

Am trying to install Xgboost on my Mac. Python version is 3.6

sudo pip install xgboost

am getting the following error

    Complete output from command python setup.py egg_info:
    rm -f -rf build build_plugin lib bin *~ /~ //*~ ///~ /.o //*.o ///.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: * [build/learner.o] Error 127 make:  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:  [build/logging.o] Error 127 ----------------------------- Building multi-thread xgboost failed Start to build single-thread xgboost rm -f -rf build build_plugin lib bin *~ /~ //*~ ///~ /.o //*.o ///.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:  [build/learner.o] Error 127 make:  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: * [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)))
    builtin.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

This is what happening, I don't know what's happening.

Answer 1

Do this:

$ brew install gcc@5
$ pip install xgboost

Info here https://github.com/dmlc/xgboost/issues/1501

Answer 2

Although I installed gcc 5 (with brew), the xgboost build still used the LLVM version of gcc (7 in my case). To get the build to use gcc 5 I did:

$ brew install gcc5
$ env CC=gcc-5 CXX=g++-5 pip install xgboost

and this worked for me. ( davidread's answer helps me very much! thank you @davidread)

Answer 3

通过pip安装时，我也遇到了同样的问题，但是通过此链接安装成功。