# tag: cpp

PYTHON setup.py build_ext --inplace
PYTHON -c "import a"

######## setup.py ########


# TODO: Better interface...
from Cython.Build.Dependencies import cythonize

from distutils.core import setup
import sys
if sys.platform == 'win32':
   MATH_LIBS = []
else:
   MATH_LIBS = ['m']

setup(
  ext_modules = cythonize("*.pyx", aliases={'MATH_LIBS': MATH_LIBS}),
)

######## my_lib.pxd ########

# distutils: language = c++
# distutils: libraries = MATH_LIBS

cdef extern from "my_lib_helper.cpp" namespace "A":
    int x

######## my_lib_helper.cpp #######

namespace A {
    int x = 100;
};

######## a.pyx ########

from my_lib cimport x

print x