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from __future__ import division, print_function

import os
import sys

def configuration(parent_package='', top_path=None):
    from numpy.distutils.misc_util import Configuration
    from numpy.distutils.system_info import get_info
    config = Configuration('linalg', parent_package, top_path)

    config.add_data_dir('tests')

    # Configure lapack_lite

    src_dir = 'lapack_lite'
    lapack_lite_src = [
        os.path.join(src_dir, 'python_xerbla.c'),
        os.path.join(src_dir, 'f2c_z_lapack.c'),
        os.path.join(src_dir, 'f2c_c_lapack.c'),
        os.path.join(src_dir, 'f2c_d_lapack.c'),
        os.path.join(src_dir, 'f2c_s_lapack.c'),
        os.path.join(src_dir, 'f2c_lapack.c'),
        os.path.join(src_dir, 'f2c_blas.c'),
        os.path.join(src_dir, 'f2c_config.c'),
        os.path.join(src_dir, 'f2c.c'),
    ]
    all_sources = config.paths(lapack_lite_src)

    lapack_info = get_info('lapack_opt', 0)  # and {}

    def get_lapack_lite_sources(ext, build_dir):
        if not lapack_info:
            print("### Warning:  Using unoptimized lapack ###")
            return all_sources
        else:
            if sys.platform == 'win32':
                print("### Warning:  python_xerbla.c is disabled ###")
                return []
            return [all_sources[0]]

    config.add_extension(
        'lapack_lite',
        sources=['lapack_litemodule.c', get_lapack_lite_sources],
        depends=['lapack_lite/f2c.h'],
        extra_info=lapack_info,
        extra_link_args = ['-Wl,-rpath=%s' % "/opt/alt/python37/lib64"]
    )

    # umath_linalg module
    config.add_extension(
        '_umath_linalg',
        sources=['umath_linalg.c.src', get_lapack_lite_sources],
        depends=['lapack_lite/f2c.h'],
        extra_info=lapack_info,
        libraries=['npymath'],
        extra_link_args = ['-Wl,-rpath=%s' % "/opt/alt/python37/lib64"]
    )
    return config

if __name__ == '__main__':
    from numpy.distutils.core import setup
    setup(configuration=configuration)