libc++ OSX Mojave

[ChaosPower]

HI,

Having issue pip installing this package.

Installing collected packages: decrunch
  Running setup.py install for decrunch ... error
    Complete output from command /Library/Frameworks/Python.framework/Versions/3.6/bin/python3.6 -u -c "import setuptools, tokenize;__file__='/private/var/folders/fh/d4jkcy7524dbzbhyg_jljdb80000gn/T/pip-install-1ccek1sx/decrunch/setup.py';f=getattr(tokenize, 'open', open)(__file__);code=f.read().replace('\r\n', '\n');f.close();exec(compile(code, __file__, 'exec'))" install --record /private/var/folders/fh/d4jkcy7524dbzbhyg_jljdb80000gn/T/pip-record-ygi5dzo2/install-record.txt --single-version-externally-managed --compile:
    running install
    running build
    running build_ext
    building 'decrunch' extension
    creating build
    creating build/temp.macosx-10.6-intel-3.6
    gcc -fno-strict-aliasing -Wsign-compare -fno-common -dynamic -DNDEBUG -g -fwrapv -O3 -Wall -Wstrict-prototypes -arch i386 -arch x86_64 -g -Icrunch -I/Library/Frameworks/Python.framework/Versions/3.6/include/python3.6m -c decrunch.cpp -o build/temp.macosx-10.6-intel-3.6/decrunch.o
    warning: include path for stdlibc++ headers not found; pass '-std=libc++' on the command line to use the libc++ standard library instead [-Wstdlibcxx-not-found]
    1 warning generated.

[jleclanche]

Looks to me like it built just fine. There was a warning that's it?