mac下安装plyvel失败

mac下安装plyvel失败，报错：

ERROR: Command errored out with exit status 1:
   command: /Users/***/anaconda3/envs/py36/bin/python -u -c 'import sys, setuptools, tokenize; sys.argv[0] = '"'"'/private/var/folders/***/plyvel/setup.py'"'"'; __file__='"'"'/private/var/folders/cg/ghbn9h3s2837bwygfrnsgfr40000gn/T/pip-install-wx5k_jyr/plyvel/setup.py'"'"';f=getattr(tokenize, '"'"'open'"'"', open)(__file__);code=f.read().replace('"'"'\r\n'"'"', '"'"'\n'"'"');f.close();exec(compile(code, __file__, '"'"'exec'"'"'))' bdist_wheel -d /private/var/folders/***/T/pip-wheel-25rgpzbk --python-tag cp36
       cwd: /private/var/folders/****/T/pip-install-wx5k_jyr/plyvel/
  Complete output (27 lines):
  running bdist_wheel
  running build
  running build_py
  creating build
  creating build/lib.macosx-10.7-x86_64-3.6
  creating build/lib.macosx-10.7-x86_64-3.6/plyvel
  copying plyvel/_version.py -> build/lib.macosx-10.7-x86_64-3.6/plyvel
  copying plyvel/__init__.py -> build/lib.macosx-10.7-x86_64-3.6/plyvel
  running build_ext
  building 'plyvel._plyvel' extension
  creating build/temp.macosx-10.7-x86_64-3.6
  creating build/temp.macosx-10.7-x86_64-3.6/plyvel
  gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/Users/***/anaconda3/envs/py36/include -arch x86_64 -I/Users/****/anaconda3/envs/py36/include -arch x86_64 -I/Users/***/anaconda3/envs/py36/include/python3.6m -c plyvel/_plyvel.cpp -o build/temp.macosx-10.7-x86_64-3.6/plyvel/_plyvel.o -Wall -g -x c++ -std=c++11 -stdlib=libc++
  plyvel/_plyvel.cpp:22806:52: warning: code will never be executed [-Wunreachable-code]
          } else if (PY_VERSION_HEX >= 0x030700A0 && flag == (METH_FASTCALL | METH_KEYWORDS)) {
                                                     ^~~~
  plyvel/_plyvel.cpp:22806:38: note: silence by adding parentheses to mark code as explicitly dead
          } else if (PY_VERSION_HEX >= 0x030700A0 && flag == (METH_FASTCALL | METH_KEYWORDS)) {
                                       ^
                                       /* DISABLES CODE */ ( )
  1 warning generated.
  gcc -Wno-unused-result -Wsign-compare -Wunreachable-code -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -I/Users/***/anaconda3/envs/py36/include -arch x86_64 -I/Users/***/anaconda3/envs/py36/include -arch x86_64 -I/Users/****/anaconda3/envs/py36/include/python3.6m -c plyvel/comparator.cpp -o build/temp.macosx-10.7-x86_64-3.6/plyvel/comparator.o -Wall -g -x c++ -std=c++11 -stdlib=libc++
  g++ -bundle -undefined dynamic_lookup -L/Users/***/anaconda3/envs/py36/lib -arch x86_64 -L/Users/****/anaconda3/envs/py36/lib -arch x86_64 -arch x86_64 build/temp.macosx-10.7-x86_64-3.6/plyvel/_plyvel.o build/temp.macosx-10.7-x86_64-3.6/plyvel/comparator.o -lleveldb -o build/lib.macosx-10.7-x86_64-3.6/plyvel/_plyvel.cpython-36m-darwin.so
  clang: warning: libstdc++ is deprecated; move to libc++ with a minimum deployment target of OS X 10.9 [-Wdeprecated]
  ld: library not found for -lstdc++
  clang: error: linker command failed with exit code 1 (use -v to see invocation)
  error: command 'g++' failed with exit status 1
  ----------------------------------------
  ERROR: Failed building wheel for plyvel

 

可以尝试CFLAGS='-stdlib=libc++ -std=c++11' pip3 install plyvel