setup.py 文件源码

def declare_cython_extension(extName, use_math=False, use_openmp=False):
    """Declare a Cython extension module for setuptools.

Parameters:
    extName : str
        Absolute module name, e.g. use `mylibrary.mypackage.subpackage`
        for the Cython source file `mylibrary/mypackage/subpackage.pyx`.

    use_math : bool
        If True, set math flags and link with ``libm``.

    use_openmp : bool
        If True, compile and link with OpenMP.

Return value:
    Extension object
        that can be passed to ``setuptools.setup``.
"""
    extPath = extName.replace(".", os.path.sep)+".pyx"

    if use_math:
        compile_args = list(my_extra_compile_args_math) # copy
        link_args    = list(my_extra_link_args_math)
        libraries    = ["m"]  # link libm; this is a list of library names without the "lib" prefix
    else:
        compile_args = list(my_extra_compile_args_nonmath)
        link_args    = list(my_extra_link_args_nonmath)
        libraries    = None  # value if no libraries, see setuptools.extension._Extension

    # OpenMP
    if use_openmp:
        compile_args.insert( 0, openmp_compile_args )
        link_args.insert( 0, openmp_link_args )

    # See
    #    http://docs.cython.org/src/tutorial/external.html
    #
    # on linking libraries to your Cython extensions.
    #
    return Extension( extName,
                      [extPath],
                      extra_compile_args=compile_args,
                      extra_link_args=link_args,
                      libraries=libraries
                    )


#########################################################
# Set up modules
#########################################################

# declare Cython extension modules here
#