def _init_info_modules(self, packages=None):
        """Initialize info_modules = {<package_name>: <package info.py module>}.
        """
        from numpy.compat import npy_load_module
        info_files = []
        info_modules = self.info_modules

        if packages is None:
            for path in self.parent_path:
                info_files.extend(self._get_info_files('*', path))
        else:
            for package_name in packages:
                package_dir = os.path.join(*package_name.split('.'))
                for path in self.parent_path:
                    names_files = self._get_info_files(package_dir, path)
                    if names_files:
                        info_files.extend(names_files)
                        break
                else:
                    try:
                        exec('import %s.info as info' % (package_name))
                        info_modules[package_name] = info
                    except ImportError as msg:
                        self.warn('No scipy-style subpackage %r found in %s. '\
                                  'Ignoring: %s'\
                                  % (package_name, ':'.join(self.parent_path), msg))

        for package_name, info_file in info_files:
            if package_name in info_modules:
                continue
            fullname = self.parent_name +'.'+ package_name
            if info_file[-1]=='c':
                filedescriptor = ('.pyc', 'rb', 2)
            else:
                filedescriptor = ('.py', 'U', 1)

            try:
                info_module = npy_load_module(fullname + '.info',
                                              info_file,
                                              filedescriptor)
            except Exception as msg:
                self.error(msg)
                info_module = None

            if info_module is None or getattr(info_module, 'ignore', False):
                info_modules.pop(package_name, None)
            else:
                self._init_info_modules(getattr(info_module, 'depends', []))
                info_modules[package_name] = info_module

        return
Exemplo n.º 2
0
    def _init_info_modules(self, packages=None):
        """Initialize info_modules = {<package_name>: <package info.py module>}.
        """
        from numpy.compat import npy_load_module
        info_files = []
        info_modules = self.info_modules

        if packages is None:
            for path in self.parent_path:
                info_files.extend(self._get_info_files('*', path))
        else:
            for package_name in packages:
                package_dir = os.path.join(*package_name.split('.'))
                for path in self.parent_path:
                    names_files = self._get_info_files(package_dir, path)
                    if names_files:
                        info_files.extend(names_files)
                        break
                else:
                    try:
                        exec('import %s.info as info' % (package_name))
                        info_modules[package_name] = info
                    except ImportError as msg:
                        self.warn('No scipy-style subpackage %r found in %s. ' \
                                  'Ignoring: %s' \
                                  % (package_name, ':'.join(self.parent_path), msg))

        for package_name, info_file in info_files:
            if package_name in info_modules:
                continue
            fullname = self.parent_name + '.' + package_name
            if info_file[-1] == 'c':
                filedescriptor = ('.pyc', 'rb', 2)
            else:
                filedescriptor = ('.py', 'U', 1)

            try:
                info_module = npy_load_module(fullname + '.info',
                                              info_file,
                                              filedescriptor)
            except Exception as msg:
                self.error(msg)
                info_module = None

            if info_module is None or getattr(info_module, 'ignore', False):
                info_modules.pop(package_name, None)
            else:
                self._init_info_modules(getattr(info_module, 'depends', []))
                info_modules[package_name] = info_module

        return
Exemplo n.º 3
0
def configuration(parent_package='', top_path=None):
    from numpy.distutils.misc_util import Configuration, dot_join
    from numpy.distutils.system_info import get_info

    config = Configuration('core', parent_package, top_path)
    local_dir = config.local_path
    codegen_dir = join(local_dir, 'code_generators')

    if is_released(config):
        warnings.simplefilter('error', MismatchCAPIWarning)

    # Check whether we have a mismatch between the set C API VERSION and the
    # actual C API VERSION
    check_api_version(C_API_VERSION, codegen_dir)

    generate_umath_py = join(codegen_dir, 'generate_umath.py')
    n = dot_join(config.name, 'generate_umath')
    generate_umath = npy_load_module('_'.join(n.split('.')), generate_umath_py,
                                     ('.py', 'U', 1))

    header_dir = 'include/numpy'  # this is relative to config.path_in_package

    cocache = CallOnceOnly()

    def generate_config_h(ext, build_dir):
        target = join(build_dir, header_dir, 'config.h')
        d = os.path.dirname(target)
        if not os.path.exists(d):
            os.makedirs(d)

        if newer(__file__, target):
            config_cmd = config.get_config_cmd()
            log.info('Generating %s', target)

            # Check sizeof
            moredefs, ignored = cocache.check_types(config_cmd, ext, build_dir)

            # Check math library and C99 math funcs availability
            mathlibs = check_mathlib(config_cmd)
            moredefs.append(('MATHLIB', ','.join(mathlibs)))

            check_math_capabilities(config_cmd, ext, moredefs, mathlibs)
            moredefs.extend(cocache.check_ieee_macros(config_cmd)[0])
            moredefs.extend(cocache.check_complex(config_cmd, mathlibs)[0])

            # Signal check
            if is_npy_no_signal():
                moredefs.append('__NPY_PRIVATE_NO_SIGNAL')

            # Windows checks
            if sys.platform == 'win32' or os.name == 'nt':
                win32_checks(moredefs)

            # C99 restrict keyword
            moredefs.append(('NPY_RESTRICT', config_cmd.check_restrict()))

            # Inline check
            inline = config_cmd.check_inline()

            # Use relaxed stride checking
            if NPY_RELAXED_STRIDES_CHECKING:
                moredefs.append(('NPY_RELAXED_STRIDES_CHECKING', 1))

            # Use bogus stride debug aid when relaxed strides are enabled
            if NPY_RELAXED_STRIDES_DEBUG:
                moredefs.append(('NPY_RELAXED_STRIDES_DEBUG', 1))

            # Get long double representation
            rep = check_long_double_representation(config_cmd)
            moredefs.append(('HAVE_LDOUBLE_%s' % rep, 1))

            if check_for_right_shift_internal_compiler_error(config_cmd):
                moredefs.append('NPY_DO_NOT_OPTIMIZE_LONG_right_shift')
                moredefs.append('NPY_DO_NOT_OPTIMIZE_ULONG_right_shift')
                moredefs.append('NPY_DO_NOT_OPTIMIZE_LONGLONG_right_shift')
                moredefs.append('NPY_DO_NOT_OPTIMIZE_ULONGLONG_right_shift')

            # Generate the config.h file from moredefs
            with open(target, 'w') as target_f:
                for d in moredefs:
                    if isinstance(d, str):
                        target_f.write('#define %s\n' % (d))
                    else:
                        target_f.write('#define %s %s\n' % (d[0], d[1]))

                # define inline to our keyword, or nothing
                target_f.write('#ifndef __cplusplus\n')
                if inline == 'inline':
                    target_f.write('/* #undef inline */\n')
                else:
                    target_f.write('#define inline %s\n' % inline)
                target_f.write('#endif\n')

                # add the guard to make sure config.h is never included directly,
                # but always through npy_config.h
                target_f.write(
                    textwrap.dedent("""
                    #ifndef _NPY_NPY_CONFIG_H_
                    #error config.h should never be included directly, include npy_config.h instead
                    #endif
                    """))

            log.info('File: %s' % target)
            with open(target) as target_f:
                log.info(target_f.read())
            log.info('EOF')
        else:
            mathlibs = []
            with open(target) as target_f:
                for line in target_f:
                    s = '#define MATHLIB'
                    if line.startswith(s):
                        value = line[len(s):].strip()
                        if value:
                            mathlibs.extend(value.split(','))

        # Ugly: this can be called within a library and not an extension,
        # in which case there is no libraries attributes (and none is
        # needed).
        if hasattr(ext, 'libraries'):
            ext.libraries.extend(mathlibs)

        incl_dir = os.path.dirname(target)
        if incl_dir not in config.numpy_include_dirs:
            config.numpy_include_dirs.append(incl_dir)

        return target

    def generate_numpyconfig_h(ext, build_dir):
        """Depends on config.h: generate_config_h has to be called before !"""
        # put common include directory in build_dir on search path
        # allows using code generation in headers
        config.add_include_dirs(join(build_dir, "src", "common"))
        config.add_include_dirs(join(build_dir, "src", "npymath"))

        target = join(build_dir, header_dir, '_numpyconfig.h')
        d = os.path.dirname(target)
        if not os.path.exists(d):
            os.makedirs(d)
        if newer(__file__, target):
            config_cmd = config.get_config_cmd()
            log.info('Generating %s', target)

            # Check sizeof
            ignored, moredefs = cocache.check_types(config_cmd, ext, build_dir)

            if is_npy_no_signal():
                moredefs.append(('NPY_NO_SIGNAL', 1))

            if is_npy_no_smp():
                moredefs.append(('NPY_NO_SMP', 1))
            else:
                moredefs.append(('NPY_NO_SMP', 0))

            mathlibs = check_mathlib(config_cmd)
            moredefs.extend(cocache.check_ieee_macros(config_cmd)[1])
            moredefs.extend(cocache.check_complex(config_cmd, mathlibs)[1])

            if NPY_RELAXED_STRIDES_CHECKING:
                moredefs.append(('NPY_RELAXED_STRIDES_CHECKING', 1))

            if NPY_RELAXED_STRIDES_DEBUG:
                moredefs.append(('NPY_RELAXED_STRIDES_DEBUG', 1))

            # Check whether we can use inttypes (C99) formats
            if config_cmd.check_decl('PRIdPTR', headers=['inttypes.h']):
                moredefs.append(('NPY_USE_C99_FORMATS', 1))

            # visibility check
            hidden_visibility = visibility_define(config_cmd)
            moredefs.append(('NPY_VISIBILITY_HIDDEN', hidden_visibility))

            # Add the C API/ABI versions
            moredefs.append(('NPY_ABI_VERSION', '0x%.8X' % C_ABI_VERSION))
            moredefs.append(('NPY_API_VERSION', '0x%.8X' % C_API_VERSION))

            # Add moredefs to header
            with open(target, 'w') as target_f:
                for d in moredefs:
                    if isinstance(d, str):
                        target_f.write('#define %s\n' % (d))
                    else:
                        target_f.write('#define %s %s\n' % (d[0], d[1]))

                # Define __STDC_FORMAT_MACROS
                target_f.write(
                    textwrap.dedent("""
                    #ifndef __STDC_FORMAT_MACROS
                    #define __STDC_FORMAT_MACROS 1
                    #endif
                    """))

            # Dump the numpyconfig.h header to stdout
            log.info('File: %s' % target)
            with open(target) as target_f:
                log.info(target_f.read())
            log.info('EOF')
        config.add_data_files((header_dir, target))
        return target

    def generate_api_func(module_name):
        def generate_api(ext, build_dir):
            script = join(codegen_dir, module_name + '.py')
            sys.path.insert(0, codegen_dir)
            try:
                m = __import__(module_name)
                log.info('executing %s', script)
                h_file, c_file, doc_file = m.generate_api(
                    os.path.join(build_dir, header_dir))
            finally:
                del sys.path[0]
            config.add_data_files((header_dir, h_file), (header_dir, doc_file))
            return (h_file, )

        return generate_api

    generate_numpy_api = generate_api_func('generate_numpy_api')
    generate_ufunc_api = generate_api_func('generate_ufunc_api')

    config.add_include_dirs(join(local_dir, "src", "common"))
    config.add_include_dirs(join(local_dir, "src"))
    config.add_include_dirs(join(local_dir))

    config.add_data_dir('include/numpy')
    config.add_include_dirs(join('src', 'npymath'))
    config.add_include_dirs(join('src', 'multiarray'))
    config.add_include_dirs(join('src', 'umath'))
    config.add_include_dirs(join('src', 'npysort'))

    config.add_define_macros([
        ("NPY_INTERNAL_BUILD", "1")
    ])  # this macro indicates that Numpy build is in process
    config.add_define_macros([("HAVE_NPY_CONFIG_H", "1")])
    if sys.platform[:3] == "aix":
        config.add_define_macros([("_LARGE_FILES", None)])
    else:
        config.add_define_macros([("_FILE_OFFSET_BITS", "64")])
        config.add_define_macros([('_LARGEFILE_SOURCE', '1')])
        config.add_define_macros([('_LARGEFILE64_SOURCE', '1')])

    config.numpy_include_dirs.extend(config.paths('include'))

    deps = [
        join('src', 'npymath', '_signbit.c'),
        join('include', 'numpy', '*object.h'),
        join(codegen_dir, 'genapi.py'),
    ]

    #######################################################################
    #                          npymath library                            #
    #######################################################################

    subst_dict = dict([("sep", os.path.sep), ("pkgname", "numpy.core")])

    def get_mathlib_info(*args):
        # Another ugly hack: the mathlib info is known once build_src is run,
        # but we cannot use add_installed_pkg_config here either, so we only
        # update the substitution dictionary during npymath build
        config_cmd = config.get_config_cmd()

        # Check that the toolchain works, to fail early if it doesn't
        # (avoid late errors with MATHLIB which are confusing if the
        # compiler does not work).
        st = config_cmd.try_link('int main(void) { return 0;}')
        if not st:
            # rerun the failing command in verbose mode
            config_cmd.compiler.verbose = True
            config_cmd.try_link('int main(void) { return 0;}')
            raise RuntimeError(
                "Broken toolchain: cannot link a simple C program")
        mlibs = check_mathlib(config_cmd)

        posix_mlib = ' '.join(['-l%s' % l for l in mlibs])
        msvc_mlib = ' '.join(['%s.lib' % l for l in mlibs])
        subst_dict["posix_mathlib"] = posix_mlib
        subst_dict["msvc_mathlib"] = msvc_mlib

    npymath_sources = [
        join('src', 'npymath', 'npy_math_internal.h.src'),
        join('src', 'npymath', 'npy_math.c'),
        join('src', 'npymath', 'ieee754.c.src'),
        join('src', 'npymath', 'npy_math_complex.c.src'),
        join('src', 'npymath', 'halffloat.c')
    ]

    # Must be true for CRT compilers but not MinGW/cygwin. See gh-9977.
    # Intel and Clang also don't seem happy with /GL
    is_msvc = (platform.platform().startswith('Windows')
               and platform.python_compiler().startswith('MS'))
    config.add_installed_library(
        'npymath',
        sources=npymath_sources + [get_mathlib_info],
        install_dir='lib',
        build_info={
            'include_dirs':
            [],  # empty list required for creating npy_math_internal.h
            'extra_compiler_args': (['/GL-'] if is_msvc else []),
        })
    config.add_npy_pkg_config("npymath.ini.in", "lib/npy-pkg-config",
                              subst_dict)
    config.add_npy_pkg_config("mlib.ini.in", "lib/npy-pkg-config", subst_dict)

    #######################################################################
    #                         npysort library                             #
    #######################################################################

    # This library is created for the build but it is not installed
    npysort_sources = [
        join('src', 'common', 'npy_sort.h.src'),
        join('src', 'npysort', 'quicksort.c.src'),
        join('src', 'npysort', 'mergesort.c.src'),
        join('src', 'npysort', 'timsort.c.src'),
        join('src', 'npysort', 'heapsort.c.src'),
        join('src', 'npysort', 'radixsort.c.src'),
        join('src', 'common', 'npy_partition.h.src'),
        join('src', 'npysort', 'selection.c.src'),
        join('src', 'common', 'npy_binsearch.h.src'),
        join('src', 'npysort', 'binsearch.c.src'),
    ]
    config.add_library('npysort', sources=npysort_sources, include_dirs=[])

    #######################################################################
    #                     multiarray_tests module                         #
    #######################################################################

    config.add_extension('_multiarray_tests',
                         sources=[
                             join('src', 'multiarray',
                                  '_multiarray_tests.c.src'),
                             join('src', 'common', 'mem_overlap.c')
                         ],
                         depends=[
                             join('src', 'common', 'mem_overlap.h'),
                             join('src', 'common', 'npy_extint128.h')
                         ],
                         libraries=['npymath'])

    #######################################################################
    #             _multiarray_umath module - common part                  #
    #######################################################################

    common_deps = [
        join('src', 'common', 'array_assign.h'),
        join('src', 'common', 'binop_override.h'),
        join('src', 'common', 'cblasfuncs.h'),
        join('src', 'common', 'lowlevel_strided_loops.h'),
        join('src', 'common', 'mem_overlap.h'),
        join('src', 'common', 'npy_cblas.h'),
        join('src', 'common', 'npy_config.h'),
        join('src', 'common', 'npy_ctypes.h'),
        join('src', 'common', 'npy_extint128.h'),
        join('src', 'common', 'npy_import.h'),
        join('src', 'common', 'npy_longdouble.h'),
        join('src', 'common', 'templ_common.h.src'),
        join('src', 'common', 'ucsnarrow.h'),
        join('src', 'common', 'ufunc_override.h'),
        join('src', 'common', 'umathmodule.h'),
        join('src', 'common', 'numpyos.h'),
    ]

    common_src = [
        join('src', 'common', 'array_assign.c'),
        join('src', 'common', 'mem_overlap.c'),
        join('src', 'common', 'npy_longdouble.c'),
        join('src', 'common', 'templ_common.h.src'),
        join('src', 'common', 'ucsnarrow.c'),
        join('src', 'common', 'ufunc_override.c'),
        join('src', 'common', 'numpyos.c'),
        join('src', 'common', 'npy_cpu_features.c.src'),
    ]

    if os.environ.get('NPY_USE_BLAS_ILP64', "0") != "0":
        blas_info = get_info('blas_ilp64_opt', 2)
    else:
        blas_info = get_info('blas_opt', 0)

    have_blas = blas_info and ('HAVE_CBLAS', None) in blas_info.get(
        'define_macros', [])

    if have_blas:
        extra_info = blas_info
        # These files are also in MANIFEST.in so that they are always in
        # the source distribution independently of HAVE_CBLAS.
        common_src.extend([
            join('src', 'common', 'cblasfuncs.c'),
            join('src', 'common', 'python_xerbla.c'),
        ])
        if uses_accelerate_framework(blas_info):
            common_src.extend(get_sgemv_fix())
    else:
        extra_info = {}

    #######################################################################
    #             _multiarray_umath module - multiarray part              #
    #######################################################################

    multiarray_deps = [
        join('src', 'multiarray', 'arrayobject.h'),
        join('src', 'multiarray', 'arraytypes.h'),
        join('src', 'multiarray', 'arrayfunction_override.h'),
        join('src', 'multiarray', 'npy_buffer.h'),
        join('src', 'multiarray', 'calculation.h'),
        join('src', 'multiarray', 'common.h'),
        join('src', 'multiarray', 'convert_datatype.h'),
        join('src', 'multiarray', 'convert.h'),
        join('src', 'multiarray', 'conversion_utils.h'),
        join('src', 'multiarray', 'ctors.h'),
        join('src', 'multiarray', 'descriptor.h'),
        join('src', 'multiarray', 'dragon4.h'),
        join('src', 'multiarray', 'getset.h'),
        join('src', 'multiarray', 'hashdescr.h'),
        join('src', 'multiarray', 'iterators.h'),
        join('src', 'multiarray', 'mapping.h'),
        join('src', 'multiarray', 'methods.h'),
        join('src', 'multiarray', 'multiarraymodule.h'),
        join('src', 'multiarray', 'nditer_impl.h'),
        join('src', 'multiarray', 'number.h'),
        join('src', 'multiarray', 'refcount.h'),
        join('src', 'multiarray', 'scalartypes.h'),
        join('src', 'multiarray', 'sequence.h'),
        join('src', 'multiarray', 'shape.h'),
        join('src', 'multiarray', 'strfuncs.h'),
        join('src', 'multiarray', 'typeinfo.h'),
        join('src', 'multiarray', 'usertypes.h'),
        join('src', 'multiarray', 'vdot.h'),
        join('include', 'numpy', 'arrayobject.h'),
        join('include', 'numpy', '_neighborhood_iterator_imp.h'),
        join('include', 'numpy', 'npy_endian.h'),
        join('include', 'numpy', 'arrayscalars.h'),
        join('include', 'numpy', 'noprefix.h'),
        join('include', 'numpy', 'npy_interrupt.h'),
        join('include', 'numpy', 'npy_3kcompat.h'),
        join('include', 'numpy', 'npy_math.h'),
        join('include', 'numpy', 'halffloat.h'),
        join('include', 'numpy', 'npy_common.h'),
        join('include', 'numpy', 'npy_os.h'),
        join('include', 'numpy', 'utils.h'),
        join('include', 'numpy', 'ndarrayobject.h'),
        join('include', 'numpy', 'npy_cpu.h'),
        join('include', 'numpy', 'numpyconfig.h'),
        join('include', 'numpy', 'ndarraytypes.h'),
        join('include', 'numpy', 'npy_1_7_deprecated_api.h'),
        # add library sources as distuils does not consider libraries
        # dependencies
    ] + npysort_sources + npymath_sources

    multiarray_src = [
        join('src', 'multiarray', 'alloc.c'),
        join('src', 'multiarray', 'arrayobject.c'),
        join('src', 'multiarray', 'arraytypes.c.src'),
        join('src', 'multiarray', 'array_assign_scalar.c'),
        join('src', 'multiarray', 'array_assign_array.c'),
        join('src', 'multiarray', 'arrayfunction_override.c'),
        join('src', 'multiarray', 'buffer.c'),
        join('src', 'multiarray', 'calculation.c'),
        join('src', 'multiarray', 'compiled_base.c'),
        join('src', 'multiarray', 'common.c'),
        join('src', 'multiarray', 'convert.c'),
        join('src', 'multiarray', 'convert_datatype.c'),
        join('src', 'multiarray', 'conversion_utils.c'),
        join('src', 'multiarray', 'ctors.c'),
        join('src', 'multiarray', 'datetime.c'),
        join('src', 'multiarray', 'datetime_strings.c'),
        join('src', 'multiarray', 'datetime_busday.c'),
        join('src', 'multiarray', 'datetime_busdaycal.c'),
        join('src', 'multiarray', 'descriptor.c'),
        join('src', 'multiarray', 'dragon4.c'),
        join('src', 'multiarray', 'dtype_transfer.c'),
        join('src', 'multiarray', 'einsum.c.src'),
        join('src', 'multiarray', 'flagsobject.c'),
        join('src', 'multiarray', 'getset.c'),
        join('src', 'multiarray', 'hashdescr.c'),
        join('src', 'multiarray', 'item_selection.c'),
        join('src', 'multiarray', 'iterators.c'),
        join('src', 'multiarray', 'lowlevel_strided_loops.c.src'),
        join('src', 'multiarray', 'mapping.c'),
        join('src', 'multiarray', 'methods.c'),
        join('src', 'multiarray', 'multiarraymodule.c'),
        join('src', 'multiarray', 'nditer_templ.c.src'),
        join('src', 'multiarray', 'nditer_api.c'),
        join('src', 'multiarray', 'nditer_constr.c'),
        join('src', 'multiarray', 'nditer_pywrap.c'),
        join('src', 'multiarray', 'number.c'),
        join('src', 'multiarray', 'refcount.c'),
        join('src', 'multiarray', 'sequence.c'),
        join('src', 'multiarray', 'shape.c'),
        join('src', 'multiarray', 'scalarapi.c'),
        join('src', 'multiarray', 'scalartypes.c.src'),
        join('src', 'multiarray', 'strfuncs.c'),
        join('src', 'multiarray', 'temp_elide.c'),
        join('src', 'multiarray', 'typeinfo.c'),
        join('src', 'multiarray', 'usertypes.c'),
        join('src', 'multiarray', 'vdot.c'),
    ]

    #######################################################################
    #             _multiarray_umath module - umath part                   #
    #######################################################################

    def generate_umath_c(ext, build_dir):
        target = join(build_dir, header_dir, '__umath_generated.c')
        dir = os.path.dirname(target)
        if not os.path.exists(dir):
            os.makedirs(dir)
        script = generate_umath_py
        if newer(script, target):
            with open(target, 'w') as f:
                f.write(
                    generate_umath.make_code(generate_umath.defdict,
                                             generate_umath.__file__))
        return []

    umath_src = [
        join('src', 'umath', 'umathmodule.c'),
        join('src', 'umath', 'reduction.c'),
        join('src', 'umath', 'funcs.inc.src'),
        join('src', 'umath', 'simd.inc.src'),
        join('src', 'umath', 'loops.h.src'),
        join('src', 'umath', 'loops.c.src'),
        join('src', 'umath', 'matmul.h.src'),
        join('src', 'umath', 'matmul.c.src'),
        join('src', 'umath', 'clip.h.src'),
        join('src', 'umath', 'clip.c.src'),
        join('src', 'umath', 'ufunc_object.c'),
        join('src', 'umath', 'extobj.c'),
        join('src', 'umath', 'scalarmath.c.src'),
        join('src', 'umath', 'ufunc_type_resolution.c'),
        join('src', 'umath', 'override.c'),
    ]

    umath_deps = [
        generate_umath_py,
        join('include', 'numpy', 'npy_math.h'),
        join('include', 'numpy', 'halffloat.h'),
        join('src', 'multiarray', 'common.h'),
        join('src', 'multiarray', 'number.h'),
        join('src', 'common', 'templ_common.h.src'),
        join('src', 'umath', 'simd.inc.src'),
        join('src', 'umath', 'override.h'),
        join(codegen_dir, 'generate_ufunc_api.py'),
    ]

    config.add_extension(
        '_multiarray_umath',
        sources=multiarray_src + umath_src + npymath_sources + common_src + [
            generate_config_h,
            generate_numpyconfig_h,
            generate_numpy_api,
            join(codegen_dir, 'generate_numpy_api.py'),
            join('*.py'),
            generate_umath_c,
            generate_ufunc_api,
        ],
        depends=deps + multiarray_deps + umath_deps + common_deps,
        libraries=['npymath', 'npysort'],
        extra_info=extra_info)

    #######################################################################
    #                        umath_tests module                           #
    #######################################################################

    config.add_extension('_umath_tests',
                         sources=[join('src', 'umath', '_umath_tests.c.src')])

    #######################################################################
    #                   custom rational dtype module                      #
    #######################################################################

    config.add_extension(
        '_rational_tests',
        sources=[join('src', 'umath', '_rational_tests.c.src')])

    #######################################################################
    #                        struct_ufunc_test module                     #
    #######################################################################

    config.add_extension(
        '_struct_ufunc_tests',
        sources=[join('src', 'umath', '_struct_ufunc_tests.c.src')])

    #######################################################################
    #                        operand_flag_tests module                    #
    #######################################################################

    config.add_extension(
        '_operand_flag_tests',
        sources=[join('src', 'umath', '_operand_flag_tests.c.src')])

    config.add_subpackage('tests')
    config.add_data_dir('tests/data')

    config.make_svn_version_py()

    return config
Exemplo n.º 4
0
def configuration(parent_package='',top_path=None):
    from numpy.distutils.misc_util import Configuration, dot_join
    from numpy.distutils.system_info import get_info

    config = Configuration('core', parent_package, top_path)
    local_dir = config.local_path
    codegen_dir = join(local_dir, 'code_generators')

    if is_released(config):
        warnings.simplefilter('error', MismatchCAPIWarning)

    # Check whether we have a mismatch between the set C API VERSION and the
    # actual C API VERSION
    check_api_version(C_API_VERSION, codegen_dir)

    generate_umath_py = join(codegen_dir, 'generate_umath.py')
    n = dot_join(config.name, 'generate_umath')
    generate_umath = npy_load_module('_'.join(n.split('.')),
                                     generate_umath_py, ('.py', 'U', 1))

    header_dir = 'include/numpy'  # this is relative to config.path_in_package

    cocache = CallOnceOnly()

    def generate_config_h(ext, build_dir):
        target = join(build_dir, header_dir, 'config.h')
        d = os.path.dirname(target)
        if not os.path.exists(d):
            os.makedirs(d)

        if newer(__file__, target):
            config_cmd = config.get_config_cmd()
            log.info('Generating %s', target)

            # Check sizeof
            moredefs, ignored = cocache.check_types(config_cmd, ext, build_dir)

            # Check math library and C99 math funcs availability
            mathlibs = check_mathlib(config_cmd)
            moredefs.append(('MATHLIB', ','.join(mathlibs)))

            check_math_capabilities(config_cmd, moredefs, mathlibs)
            moredefs.extend(cocache.check_ieee_macros(config_cmd)[0])
            moredefs.extend(cocache.check_complex(config_cmd, mathlibs)[0])

            # Signal check
            if is_npy_no_signal():
                moredefs.append('__NPY_PRIVATE_NO_SIGNAL')

            # Windows checks
            if sys.platform == 'win32' or os.name == 'nt':
                win32_checks(moredefs)

            # C99 restrict keyword
            moredefs.append(('NPY_RESTRICT', config_cmd.check_restrict()))

            # Inline check
            inline = config_cmd.check_inline()

            # Use relaxed stride checking
            if NPY_RELAXED_STRIDES_CHECKING:
                moredefs.append(('NPY_RELAXED_STRIDES_CHECKING', 1))

            # Use bogus stride debug aid when relaxed strides are enabled
            if NPY_RELAXED_STRIDES_DEBUG:
                moredefs.append(('NPY_RELAXED_STRIDES_DEBUG', 1))

            # Get long double representation
            if sys.platform != 'darwin':
                rep = check_long_double_representation(config_cmd)
                if rep in ['INTEL_EXTENDED_12_BYTES_LE',
                           'INTEL_EXTENDED_16_BYTES_LE',
                           'MOTOROLA_EXTENDED_12_BYTES_BE',
                           'IEEE_QUAD_LE', 'IEEE_QUAD_BE',
                           'IEEE_DOUBLE_LE', 'IEEE_DOUBLE_BE',
                           'DOUBLE_DOUBLE_BE', 'DOUBLE_DOUBLE_LE']:
                    moredefs.append(('HAVE_LDOUBLE_%s' % rep, 1))
                else:
                    raise ValueError("Unrecognized long double format: %s" % rep)

            # Py3K check
            if sys.version_info[0] == 3:
                moredefs.append(('NPY_PY3K', 1))

            # Generate the config.h file from moredefs
            target_f = open(target, 'w')
            for d in moredefs:
                if isinstance(d, str):
                    target_f.write('#define %s\n' % (d))
                else:
                    target_f.write('#define %s %s\n' % (d[0], d[1]))

            # define inline to our keyword, or nothing
            target_f.write('#ifndef __cplusplus\n')
            if inline == 'inline':
                target_f.write('/* #undef inline */\n')
            else:
                target_f.write('#define inline %s\n' % inline)
            target_f.write('#endif\n')

            # add the guard to make sure config.h is never included directly,
            # but always through npy_config.h
            target_f.write("""
#ifndef _NPY_NPY_CONFIG_H_
#error config.h should never be included directly, include npy_config.h instead
#endif
""")

            target_f.close()
            print('File:', target)
            target_f = open(target)
            print(target_f.read())
            target_f.close()
            print('EOF')
        else:
            mathlibs = []
            target_f = open(target)
            for line in target_f:
                s = '#define MATHLIB'
                if line.startswith(s):
                    value = line[len(s):].strip()
                    if value:
                        mathlibs.extend(value.split(','))
            target_f.close()

        # Ugly: this can be called within a library and not an extension,
        # in which case there is no libraries attributes (and none is
        # needed).
        if hasattr(ext, 'libraries'):
            ext.libraries.extend(mathlibs)

        incl_dir = os.path.dirname(target)
        if incl_dir not in config.numpy_include_dirs:
            config.numpy_include_dirs.append(incl_dir)

        return target

    def generate_numpyconfig_h(ext, build_dir):
        """Depends on config.h: generate_config_h has to be called before !"""
        # put private include directory in build_dir on search path
        # allows using code generation in headers headers
        config.add_include_dirs(join(build_dir, "src", "private"))
        config.add_include_dirs(join(build_dir, "src", "npymath"))

        target = join(build_dir, header_dir, '_numpyconfig.h')
        d = os.path.dirname(target)
        if not os.path.exists(d):
            os.makedirs(d)
        if newer(__file__, target):
            config_cmd = config.get_config_cmd()
            log.info('Generating %s', target)

            # Check sizeof
            ignored, moredefs = cocache.check_types(config_cmd, ext, build_dir)

            if is_npy_no_signal():
                moredefs.append(('NPY_NO_SIGNAL', 1))

            if is_npy_no_smp():
                moredefs.append(('NPY_NO_SMP', 1))
            else:
                moredefs.append(('NPY_NO_SMP', 0))

            mathlibs = check_mathlib(config_cmd)
            moredefs.extend(cocache.check_ieee_macros(config_cmd)[1])
            moredefs.extend(cocache.check_complex(config_cmd, mathlibs)[1])

            if NPY_RELAXED_STRIDES_CHECKING:
                moredefs.append(('NPY_RELAXED_STRIDES_CHECKING', 1))

            if NPY_RELAXED_STRIDES_DEBUG:
                moredefs.append(('NPY_RELAXED_STRIDES_DEBUG', 1))

            # Check wether we can use inttypes (C99) formats
            if config_cmd.check_decl('PRIdPTR', headers=['inttypes.h']):
                moredefs.append(('NPY_USE_C99_FORMATS', 1))

            # visibility check
            hidden_visibility = visibility_define(config_cmd)
            moredefs.append(('NPY_VISIBILITY_HIDDEN', hidden_visibility))

            # Add the C API/ABI versions
            moredefs.append(('NPY_ABI_VERSION', '0x%.8X' % C_ABI_VERSION))
            moredefs.append(('NPY_API_VERSION', '0x%.8X' % C_API_VERSION))

            # Add moredefs to header
            target_f = open(target, 'w')
            for d in moredefs:
                if isinstance(d, str):
                    target_f.write('#define %s\n' % (d))
                else:
                    target_f.write('#define %s %s\n' % (d[0], d[1]))

            # Define __STDC_FORMAT_MACROS
            target_f.write("""
#ifndef __STDC_FORMAT_MACROS
#define __STDC_FORMAT_MACROS 1
#endif
""")
            target_f.close()

            # Dump the numpyconfig.h header to stdout
            print('File: %s' % target)
            target_f = open(target)
            print(target_f.read())
            target_f.close()
            print('EOF')
        config.add_data_files((header_dir, target))
        return target

    def generate_api_func(module_name):
        def generate_api(ext, build_dir):
            script = join(codegen_dir, module_name + '.py')
            sys.path.insert(0, codegen_dir)
            try:
                m = __import__(module_name)
                log.info('executing %s', script)
                h_file, c_file, doc_file = m.generate_api(os.path.join(build_dir, header_dir))
            finally:
                del sys.path[0]
            config.add_data_files((header_dir, h_file),
                                  (header_dir, doc_file))
            return (h_file,)
        return generate_api

    generate_numpy_api = generate_api_func('generate_numpy_api')
    generate_ufunc_api = generate_api_func('generate_ufunc_api')

    config.add_include_dirs(join(local_dir, "src", "private"))
    config.add_include_dirs(join(local_dir, "src"))
    config.add_include_dirs(join(local_dir))

    config.add_data_files('include/numpy/*.h')
    config.add_include_dirs(join('src', 'npymath'))
    config.add_include_dirs(join('src', 'multiarray'))
    config.add_include_dirs(join('src', 'umath'))
    config.add_include_dirs(join('src', 'npysort'))

    config.add_define_macros([("NPY_INTERNAL_BUILD", "1")]) # this macro indicates that Numpy build is in process
    config.add_define_macros([("HAVE_NPY_CONFIG_H", "1")])
    if sys.platform[:3] == "aix":
        config.add_define_macros([("_LARGE_FILES", None)])
    else:
        config.add_define_macros([("_FILE_OFFSET_BITS", "64")])
        config.add_define_macros([('_LARGEFILE_SOURCE', '1')])
        config.add_define_macros([('_LARGEFILE64_SOURCE', '1')])

    config.numpy_include_dirs.extend(config.paths('include'))

    deps = [join('src', 'npymath', '_signbit.c'),
            join('include', 'numpy', '*object.h'),
            join(codegen_dir, 'genapi.py'),
            ]

    #######################################################################
    #                            dummy module                             #
    #######################################################################

    # npymath needs the config.h and numpyconfig.h files to be generated, but
    # build_clib cannot handle generate_config_h and generate_numpyconfig_h
    # (don't ask). Because clib are generated before extensions, we have to
    # explicitly add an extension which has generate_config_h and
    # generate_numpyconfig_h as sources *before* adding npymath.

    config.add_extension('_dummy',
                         sources=[join('src', 'dummymodule.c'),
                                  generate_config_h,
                                  generate_numpyconfig_h,
                                  generate_numpy_api]
                         )

    #######################################################################
    #                          npymath library                            #
    #######################################################################

    subst_dict = dict([("sep", os.path.sep), ("pkgname", "numpy.core")])

    def get_mathlib_info(*args):
        # Another ugly hack: the mathlib info is known once build_src is run,
        # but we cannot use add_installed_pkg_config here either, so we only
        # update the substition dictionary during npymath build
        config_cmd = config.get_config_cmd()

        # Check that the toolchain works, to fail early if it doesn't
        # (avoid late errors with MATHLIB which are confusing if the
        # compiler does not work).
        st = config_cmd.try_link('int main(void) { return 0;}')
        if not st:
            raise RuntimeError("Broken toolchain: cannot link a simple C program")
        mlibs = check_mathlib(config_cmd)

        posix_mlib = ' '.join(['-l%s' % l for l in mlibs])
        msvc_mlib = ' '.join(['%s.lib' % l for l in mlibs])
        subst_dict["posix_mathlib"] = posix_mlib
        subst_dict["msvc_mathlib"] = msvc_mlib

    npymath_sources = [join('src', 'npymath', 'npy_math_internal.h.src'),
                       join('src', 'npymath', 'npy_math.c'),
                       join('src', 'npymath', 'ieee754.c.src'),
                       join('src', 'npymath', 'npy_math_complex.c.src'),
                       join('src', 'npymath', 'halffloat.c')
                       ]
    
    # Must be true for CRT compilers but not MinGW/cygwin. See gh-9977.
    is_msvc = platform.system() == 'Windows'
    config.add_installed_library('npymath',
            sources=npymath_sources + [get_mathlib_info],
            install_dir='lib',
            build_info={
                'include_dirs' : [],  # empty list required for creating npy_math_internal.h
                'extra_compiler_args' : (['/GL-'] if is_msvc else []),
            })
    config.add_npy_pkg_config("npymath.ini.in", "lib/npy-pkg-config",
            subst_dict)
    config.add_npy_pkg_config("mlib.ini.in", "lib/npy-pkg-config",
            subst_dict)

    #######################################################################
    #                         npysort library                             #
    #######################################################################

    # This library is created for the build but it is not installed
    npysort_sources = [join('src', 'npysort', 'quicksort.c.src'),
                       join('src', 'npysort', 'mergesort.c.src'),
                       join('src', 'npysort', 'heapsort.c.src'),
                       join('src', 'private', 'npy_partition.h.src'),
                       join('src', 'npysort', 'selection.c.src'),
                       join('src', 'private', 'npy_binsearch.h.src'),
                       join('src', 'npysort', 'binsearch.c.src'),
                       ]
    config.add_library('npysort',
                       sources=npysort_sources,
                       include_dirs=[])

    #######################################################################
    #                        multiarray module                            #
    #######################################################################

    multiarray_deps = [
            join('src', 'multiarray', 'arrayobject.h'),
            join('src', 'multiarray', 'arraytypes.h'),
            join('src', 'multiarray', 'array_assign.h'),
            join('src', 'multiarray', 'buffer.h'),
            join('src', 'multiarray', 'calculation.h'),
            join('src', 'multiarray', 'cblasfuncs.h'),
            join('src', 'multiarray', 'common.h'),
            join('src', 'multiarray', 'convert_datatype.h'),
            join('src', 'multiarray', 'convert.h'),
            join('src', 'multiarray', 'conversion_utils.h'),
            join('src', 'multiarray', 'ctors.h'),
            join('src', 'multiarray', 'descriptor.h'),
            join('src', 'multiarray', 'dragon4.h'),
            join('src', 'multiarray', 'getset.h'),
            join('src', 'multiarray', 'hashdescr.h'),
            join('src', 'multiarray', 'iterators.h'),
            join('src', 'multiarray', 'mapping.h'),
            join('src', 'multiarray', 'methods.h'),
            join('src', 'multiarray', 'multiarraymodule.h'),
            join('src', 'multiarray', 'nditer_impl.h'),
            join('src', 'multiarray', 'number.h'),
            join('src', 'multiarray', 'numpyos.h'),
            join('src', 'multiarray', 'refcount.h'),
            join('src', 'multiarray', 'scalartypes.h'),
            join('src', 'multiarray', 'sequence.h'),
            join('src', 'multiarray', 'shape.h'),
            join('src', 'multiarray', 'strfuncs.h'),
            join('src', 'multiarray', 'ucsnarrow.h'),
            join('src', 'multiarray', 'usertypes.h'),
            join('src', 'multiarray', 'vdot.h'),
            join('src', 'private', 'npy_config.h'),
            join('src', 'private', 'templ_common.h.src'),
            join('src', 'private', 'lowlevel_strided_loops.h'),
            join('src', 'private', 'mem_overlap.h'),
            join('src', 'private', 'npy_longdouble.h'),
            join('src', 'private', 'ufunc_override.h'),
            join('src', 'private', 'binop_override.h'),
            join('src', 'private', 'npy_extint128.h'),
            join('include', 'numpy', 'arrayobject.h'),
            join('include', 'numpy', '_neighborhood_iterator_imp.h'),
            join('include', 'numpy', 'npy_endian.h'),
            join('include', 'numpy', 'arrayscalars.h'),
            join('include', 'numpy', 'noprefix.h'),
            join('include', 'numpy', 'npy_interrupt.h'),
            join('include', 'numpy', 'npy_3kcompat.h'),
            join('include', 'numpy', 'npy_math.h'),
            join('include', 'numpy', 'halffloat.h'),
            join('include', 'numpy', 'npy_common.h'),
            join('include', 'numpy', 'npy_os.h'),
            join('include', 'numpy', 'utils.h'),
            join('include', 'numpy', 'ndarrayobject.h'),
            join('include', 'numpy', 'npy_cpu.h'),
            join('include', 'numpy', 'numpyconfig.h'),
            join('include', 'numpy', 'ndarraytypes.h'),
            join('include', 'numpy', 'npy_1_7_deprecated_api.h'),
            # add library sources as distuils does not consider libraries
            # dependencies
            ] + npysort_sources + npymath_sources

    multiarray_src = [
            join('src', 'multiarray', 'alloc.c'),
            join('src', 'multiarray', 'arrayobject.c'),
            join('src', 'multiarray', 'arraytypes.c.src'),
            join('src', 'multiarray', 'array_assign.c'),
            join('src', 'multiarray', 'array_assign_scalar.c'),
            join('src', 'multiarray', 'array_assign_array.c'),
            join('src', 'multiarray', 'buffer.c'),
            join('src', 'multiarray', 'calculation.c'),
            join('src', 'multiarray', 'compiled_base.c'),
            join('src', 'multiarray', 'common.c'),
            join('src', 'multiarray', 'convert.c'),
            join('src', 'multiarray', 'convert_datatype.c'),
            join('src', 'multiarray', 'conversion_utils.c'),
            join('src', 'multiarray', 'ctors.c'),
            join('src', 'multiarray', 'datetime.c'),
            join('src', 'multiarray', 'datetime_strings.c'),
            join('src', 'multiarray', 'datetime_busday.c'),
            join('src', 'multiarray', 'datetime_busdaycal.c'),
            join('src', 'multiarray', 'descriptor.c'),
            join('src', 'multiarray', 'dragon4.c'),
            join('src', 'multiarray', 'dtype_transfer.c'),
            join('src', 'multiarray', 'einsum.c.src'),
            join('src', 'multiarray', 'flagsobject.c'),
            join('src', 'multiarray', 'getset.c'),
            join('src', 'multiarray', 'hashdescr.c'),
            join('src', 'multiarray', 'item_selection.c'),
            join('src', 'multiarray', 'iterators.c'),
            join('src', 'multiarray', 'lowlevel_strided_loops.c.src'),
            join('src', 'multiarray', 'mapping.c'),
            join('src', 'multiarray', 'methods.c'),
            join('src', 'multiarray', 'multiarraymodule.c'),
            join('src', 'multiarray', 'nditer_templ.c.src'),
            join('src', 'multiarray', 'nditer_api.c'),
            join('src', 'multiarray', 'nditer_constr.c'),
            join('src', 'multiarray', 'nditer_pywrap.c'),
            join('src', 'multiarray', 'number.c'),
            join('src', 'multiarray', 'numpyos.c'),
            join('src', 'multiarray', 'refcount.c'),
            join('src', 'multiarray', 'sequence.c'),
            join('src', 'multiarray', 'shape.c'),
            join('src', 'multiarray', 'scalarapi.c'),
            join('src', 'multiarray', 'scalartypes.c.src'),
            join('src', 'multiarray', 'strfuncs.c'),
            join('src', 'multiarray', 'temp_elide.c'),
            join('src', 'multiarray', 'usertypes.c'),
            join('src', 'multiarray', 'ucsnarrow.c'),
            join('src', 'multiarray', 'vdot.c'),
            join('src', 'private', 'templ_common.h.src'),
            join('src', 'private', 'mem_overlap.c'),
            join('src', 'private', 'npy_longdouble.c'),
            join('src', 'private', 'ufunc_override.c'),
            ]

    blas_info = get_info('blas_opt', 0)
    if blas_info and ('HAVE_CBLAS', None) in blas_info.get('define_macros', []):
        extra_info = blas_info
        # These files are also in MANIFEST.in so that they are always in
        # the source distribution independently of HAVE_CBLAS.
        multiarray_src.extend([join('src', 'multiarray', 'cblasfuncs.c'),
                               join('src', 'multiarray', 'python_xerbla.c'),
                               ])
        if uses_accelerate_framework(blas_info):
            multiarray_src.extend(get_sgemv_fix())
    else:
        extra_info = {}

    config.add_extension('multiarray',
                         sources=multiarray_src +
                                 [generate_config_h,
                                  generate_numpyconfig_h,
                                  generate_numpy_api,
                                  join(codegen_dir, 'generate_numpy_api.py'),
                                  join('*.py')],
                         depends=deps + multiarray_deps,
                         libraries=['npymath', 'npysort'],
                         extra_info=extra_info)

    #######################################################################
    #                           umath module                              #
    #######################################################################

    def generate_umath_c(ext, build_dir):
        target = join(build_dir, header_dir, '__umath_generated.c')
        dir = os.path.dirname(target)
        if not os.path.exists(dir):
            os.makedirs(dir)
        script = generate_umath_py
        if newer(script, target):
            f = open(target, 'w')
            f.write(generate_umath.make_code(generate_umath.defdict,
                                             generate_umath.__file__))
            f.close()
        return []

    umath_src = [
            join('src', 'umath', 'umathmodule.c'),
            join('src', 'umath', 'reduction.c'),
            join('src', 'umath', 'funcs.inc.src'),
            join('src', 'umath', 'simd.inc.src'),
            join('src', 'umath', 'loops.h.src'),
            join('src', 'umath', 'loops.c.src'),
            join('src', 'umath', 'ufunc_object.c'),
            join('src', 'umath', 'extobj.c'),
            join('src', 'umath', 'scalarmath.c.src'),
            join('src', 'umath', 'ufunc_type_resolution.c'),
            join('src', 'umath', 'override.c'),
            join('src', 'private', 'mem_overlap.c'),
            join('src', 'private', 'npy_longdouble.c'),
            join('src', 'private', 'ufunc_override.c')]

    umath_deps = [
            generate_umath_py,
            join('include', 'numpy', 'npy_math.h'),
            join('include', 'numpy', 'halffloat.h'),
            join('src', 'multiarray', 'common.h'),
            join('src', 'private', 'templ_common.h.src'),
            join('src', 'umath', 'simd.inc.src'),
            join('src', 'umath', 'override.h'),
            join(codegen_dir, 'generate_ufunc_api.py'),
            join('src', 'private', 'lowlevel_strided_loops.h'),
            join('src', 'private', 'mem_overlap.h'),
            join('src', 'private', 'npy_longdouble.h'),
            join('src', 'private', 'ufunc_override.h'),
            join('src', 'private', 'binop_override.h')] + npymath_sources

    config.add_extension('umath',
                         sources=umath_src +
                                 [generate_config_h,
                                 generate_numpyconfig_h,
                                 generate_umath_c,
                                 generate_ufunc_api],
                         depends=deps + umath_deps,
                         libraries=['npymath'],
                         )

    #######################################################################
    #                        umath_tests module                           #
    #######################################################################

    config.add_extension('umath_tests',
                    sources=[join('src', 'umath', 'umath_tests.c.src')])

    #######################################################################
    #                   custom rational dtype module                      #
    #######################################################################

    config.add_extension('test_rational',
                    sources=[join('src', 'umath', 'test_rational.c.src')])

    #######################################################################
    #                        struct_ufunc_test module                     #
    #######################################################################

    config.add_extension('struct_ufunc_test',
                    sources=[join('src', 'umath', 'struct_ufunc_test.c.src')])

    #######################################################################
    #                     multiarray_tests module                         #
    #######################################################################

    config.add_extension('multiarray_tests',
                    sources=[join('src', 'multiarray', 'multiarray_tests.c.src'),
                             join('src', 'private', 'mem_overlap.c')],
                    depends=[join('src', 'private', 'mem_overlap.h'),
                             join('src', 'private', 'npy_extint128.h')],
                    libraries=['npymath'])

    #######################################################################
    #                        operand_flag_tests module                    #
    #######################################################################

    config.add_extension('operand_flag_tests',
                    sources=[join('src', 'umath', 'operand_flag_tests.c.src')])

    config.add_data_dir('tests')
    config.add_data_dir('tests/data')

    config.make_svn_version_py()

    return config
Exemplo n.º 5
0
def configuration(parent_package='', top_path=None):
    from numpy.distutils.misc_util import Configuration, dot_join
    from numpy.distutils.system_info import get_info

    config = Configuration('core', parent_package, top_path)
    local_dir = config.local_path
    codegen_dir = join(local_dir, 'code_generators')

    if is_released(config):
        warnings.simplefilter('error', MismatchCAPIWarning)

    # Check whether we have a mismatch between the set C API VERSION and the
    # actual C API VERSION
    check_api_version(C_API_VERSION, codegen_dir)

    generate_umath_py = join(codegen_dir, 'generate_umath.py')
    n = dot_join(config.name, 'generate_umath')
    generate_umath = npy_load_module('_'.join(n.split('.')), generate_umath_py,
                                     ('.py', 'U', 1))

    header_dir = 'include/numpy'  # this is relative to config.path_in_package

    cocache = CallOnceOnly()

    def generate_config_h(ext, build_dir):
        target = join(build_dir, header_dir, 'config.h')
        d = os.path.dirname(target)
        if not os.path.exists(d):
            os.makedirs(d)

        if newer(__file__, target):
            config_cmd = config.get_config_cmd()
            log.info('Generating %s', target)

            # Check sizeof
            moredefs, ignored = cocache.check_types(config_cmd, ext, build_dir)

            # Check math library and C99 math funcs availability
            mathlibs = check_mathlib(config_cmd)
            moredefs.append(('MATHLIB', ','.join(mathlibs)))

            check_math_capabilities(config_cmd, moredefs, mathlibs)
            moredefs.extend(cocache.check_ieee_macros(config_cmd)[0])
            moredefs.extend(cocache.check_complex(config_cmd, mathlibs)[0])

            # Signal check
            if is_npy_no_signal():
                moredefs.append('__NPY_PRIVATE_NO_SIGNAL')

            # Windows checks
            if sys.platform == 'win32' or os.name == 'nt':
                win32_checks(moredefs)

            # C99 restrict keyword
            moredefs.append(('NPY_RESTRICT', config_cmd.check_restrict()))

            # Inline check
            inline = config_cmd.check_inline()

            # Check whether we need our own wide character support
            if not config_cmd.check_decl('Py_UNICODE_WIDE',
                                         headers=['Python.h']):
                PYTHON_HAS_UNICODE_WIDE = True
            else:
                PYTHON_HAS_UNICODE_WIDE = False

            if NPY_RELAXED_STRIDES_CHECKING:
                moredefs.append(('NPY_RELAXED_STRIDES_CHECKING', 1))

            # Get long double representation
            if sys.platform != 'darwin':
                rep = check_long_double_representation(config_cmd)
                if rep in [
                        'INTEL_EXTENDED_12_BYTES_LE',
                        'INTEL_EXTENDED_16_BYTES_LE',
                        'MOTOROLA_EXTENDED_12_BYTES_BE', 'IEEE_QUAD_LE',
                        'IEEE_QUAD_BE', 'IEEE_DOUBLE_LE', 'IEEE_DOUBLE_BE',
                        'DOUBLE_DOUBLE_BE', 'DOUBLE_DOUBLE_LE'
                ]:
                    moredefs.append(('HAVE_LDOUBLE_%s' % rep, 1))
                else:
                    raise ValueError("Unrecognized long double format: %s" %
                                     rep)

            # Py3K check
            if sys.version_info[0] == 3:
                moredefs.append(('NPY_PY3K', 1))

            # Generate the config.h file from moredefs
            target_f = open(target, 'w')
            for d in moredefs:
                if isinstance(d, str):
                    target_f.write('#define %s\n' % (d))
                else:
                    target_f.write('#define %s %s\n' % (d[0], d[1]))

            # define inline to our keyword, or nothing
            target_f.write('#ifndef __cplusplus\n')
            if inline == 'inline':
                target_f.write('/* #undef inline */\n')
            else:
                target_f.write('#define inline %s\n' % inline)
            target_f.write('#endif\n')

            # add the guard to make sure config.h is never included directly,
            # but always through npy_config.h
            target_f.write("""
#ifndef _NPY_NPY_CONFIG_H_
#error config.h should never be included directly, include npy_config.h instead
#endif
""")

            target_f.close()
            print('File:', target)
            target_f = open(target)
            print(target_f.read())
            target_f.close()
            print('EOF')
        else:
            mathlibs = []
            target_f = open(target)
            for line in target_f:
                s = '#define MATHLIB'
                if line.startswith(s):
                    value = line[len(s):].strip()
                    if value:
                        mathlibs.extend(value.split(','))
            target_f.close()

        # Ugly: this can be called within a library and not an extension,
        # in which case there is no libraries attributes (and none is
        # needed).
        if hasattr(ext, 'libraries'):
            ext.libraries.extend(mathlibs)

        incl_dir = os.path.dirname(target)
        if incl_dir not in config.numpy_include_dirs:
            config.numpy_include_dirs.append(incl_dir)

        return target

    def generate_numpyconfig_h(ext, build_dir):
        """Depends on config.h: generate_config_h has to be called before !"""
        # put private include directory in build_dir on search path
        # allows using code generation in headers headers
        config.add_include_dirs(join(build_dir, "src", "private"))

        target = join(build_dir, header_dir, '_numpyconfig.h')
        d = os.path.dirname(target)
        if not os.path.exists(d):
            os.makedirs(d)
        if newer(__file__, target):
            config_cmd = config.get_config_cmd()
            log.info('Generating %s', target)

            # Check sizeof
            ignored, moredefs = cocache.check_types(config_cmd, ext, build_dir)

            if is_npy_no_signal():
                moredefs.append(('NPY_NO_SIGNAL', 1))

            if is_npy_no_smp():
                moredefs.append(('NPY_NO_SMP', 1))
            else:
                moredefs.append(('NPY_NO_SMP', 0))

            mathlibs = check_mathlib(config_cmd)
            moredefs.extend(cocache.check_ieee_macros(config_cmd)[1])
            moredefs.extend(cocache.check_complex(config_cmd, mathlibs)[1])

            if NPY_RELAXED_STRIDES_CHECKING:
                moredefs.append(('NPY_RELAXED_STRIDES_CHECKING', 1))

            # Check wether we can use inttypes (C99) formats
            if config_cmd.check_decl('PRIdPTR', headers=['inttypes.h']):
                moredefs.append(('NPY_USE_C99_FORMATS', 1))

            # visibility check
            hidden_visibility = visibility_define(config_cmd)
            moredefs.append(('NPY_VISIBILITY_HIDDEN', hidden_visibility))

            # Add the C API/ABI versions
            moredefs.append(('NPY_ABI_VERSION', '0x%.8X' % C_ABI_VERSION))
            moredefs.append(('NPY_API_VERSION', '0x%.8X' % C_API_VERSION))

            # Add moredefs to header
            target_f = open(target, 'w')
            for d in moredefs:
                if isinstance(d, str):
                    target_f.write('#define %s\n' % (d))
                else:
                    target_f.write('#define %s %s\n' % (d[0], d[1]))

            # Define __STDC_FORMAT_MACROS
            target_f.write("""
#ifndef __STDC_FORMAT_MACROS
#define __STDC_FORMAT_MACROS 1
#endif
""")
            target_f.close()

            # Dump the numpyconfig.h header to stdout
            print('File: %s' % target)
            target_f = open(target)
            print(target_f.read())
            target_f.close()
            print('EOF')
        config.add_data_files((header_dir, target))
        return target

    def generate_api_func(module_name):
        def generate_api(ext, build_dir):
            script = join(codegen_dir, module_name + '.py')
            sys.path.insert(0, codegen_dir)
            try:
                m = __import__(module_name)
                log.info('executing %s', script)
                h_file, c_file, doc_file = m.generate_api(
                    os.path.join(build_dir, header_dir))
            finally:
                del sys.path[0]
            config.add_data_files((header_dir, h_file), (header_dir, doc_file))
            return (h_file, )

        return generate_api

    generate_numpy_api = generate_api_func('generate_numpy_api')
    generate_ufunc_api = generate_api_func('generate_ufunc_api')

    config.add_include_dirs(join(local_dir, "src", "private"))
    config.add_include_dirs(join(local_dir, "src"))
    config.add_include_dirs(join(local_dir))

    config.add_data_files('include/numpy/*.h')
    config.add_include_dirs(join('src', 'npymath'))
    config.add_include_dirs(join('src', 'multiarray'))
    config.add_include_dirs(join('src', 'umath'))
    config.add_include_dirs(join('src', 'npysort'))

    config.add_define_macros([("HAVE_NPY_CONFIG_H", "1")])
    if sys.platform[:3] == "aix":
        config.add_define_macros([("_LARGE_FILES", None)])
    else:
        config.add_define_macros([("_FILE_OFFSET_BITS", "64")])
        config.add_define_macros([('_LARGEFILE_SOURCE', '1')])
        config.add_define_macros([('_LARGEFILE64_SOURCE', '1')])

    config.numpy_include_dirs.extend(config.paths('include'))

    deps = [
        join('src', 'npymath', '_signbit.c'),
        join('include', 'numpy', '*object.h'),
        join(codegen_dir, 'genapi.py'),
    ]

    #######################################################################
    #                            dummy module                             #
    #######################################################################

    # npymath needs the config.h and numpyconfig.h files to be generated, but
    # build_clib cannot handle generate_config_h and generate_numpyconfig_h
    # (don't ask). Because clib are generated before extensions, we have to
    # explicitly add an extension which has generate_config_h and
    # generate_numpyconfig_h as sources *before* adding npymath.

    config.add_extension('_dummy',
                         sources=[
                             join('src', 'dummymodule.c'), generate_config_h,
                             generate_numpyconfig_h, generate_numpy_api
                         ])

    #######################################################################
    #                          npymath library                            #
    #######################################################################

    subst_dict = dict([("sep", os.path.sep), ("pkgname", "numpy.core")])

    def get_mathlib_info(*args):
        # Another ugly hack: the mathlib info is known once build_src is run,
        # but we cannot use add_installed_pkg_config here either, so we only
        # update the substition dictionary during npymath build
        config_cmd = config.get_config_cmd()

        # Check that the toolchain works, to fail early if it doesn't
        # (avoid late errors with MATHLIB which are confusing if the
        # compiler does not work).
        st = config_cmd.try_link('int main(void) { return 0;}')
        if not st:
            raise RuntimeError(
                "Broken toolchain: cannot link a simple C program")
        mlibs = check_mathlib(config_cmd)

        posix_mlib = ' '.join(['-l%s' % l for l in mlibs])
        msvc_mlib = ' '.join(['%s.lib' % l for l in mlibs])
        subst_dict["posix_mathlib"] = posix_mlib
        subst_dict["msvc_mathlib"] = msvc_mlib

    npymath_sources = [
        join('src', 'npymath', 'npy_math.c.src'),
        join('src', 'npymath', 'ieee754.c.src'),
        join('src', 'npymath', 'npy_math_complex.c.src'),
        join('src', 'npymath', 'halffloat.c')
    ]
    config.add_installed_library('npymath',
                                 sources=npymath_sources + [get_mathlib_info],
                                 install_dir='lib')
    config.add_npy_pkg_config("npymath.ini.in", "lib/npy-pkg-config",
                              subst_dict)
    config.add_npy_pkg_config("mlib.ini.in", "lib/npy-pkg-config", subst_dict)

    #######################################################################
    #                         npysort library                             #
    #######################################################################

    # This library is created for the build but it is not installed
    npysort_sources = [
        join('src', 'npysort', 'quicksort.c.src'),
        join('src', 'npysort', 'mergesort.c.src'),
        join('src', 'npysort', 'heapsort.c.src'),
        join('src', 'private', 'npy_partition.h.src'),
        join('src', 'npysort', 'selection.c.src'),
        join('src', 'private', 'npy_binsearch.h.src'),
        join('src', 'npysort', 'binsearch.c.src'),
    ]
    config.add_library('npysort', sources=npysort_sources, include_dirs=[])

    #######################################################################
    #                        multiarray module                            #
    #######################################################################

    # Multiarray version: this function is needed to build foo.c from foo.c.src
    # when foo.c is included in another file and as such not in the src
    # argument of build_ext command
    def generate_multiarray_templated_sources(ext, build_dir):
        from numpy.distutils.misc_util import get_cmd

        subpath = join('src', 'multiarray')
        sources = [
            join(local_dir, subpath, 'scalartypes.c.src'),
            join(local_dir, subpath, 'arraytypes.c.src'),
            join(local_dir, subpath, 'nditer_templ.c.src'),
            join(local_dir, subpath, 'lowlevel_strided_loops.c.src'),
            join(local_dir, subpath, 'einsum.c.src'),
            join(local_dir, 'src', 'private', 'templ_common.h.src')
        ]

        # numpy.distutils generate .c from .c.src in weird directories, we have
        # to add them there as they depend on the build_dir
        config.add_include_dirs(join(build_dir, subpath))
        cmd = get_cmd('build_src')
        cmd.ensure_finalized()
        cmd.template_sources(sources, ext)

    multiarray_deps = [
        join('src', 'multiarray', 'arrayobject.h'),
        join('src', 'multiarray', 'arraytypes.h'),
        join('src', 'multiarray', 'array_assign.h'),
        join('src', 'multiarray', 'buffer.h'),
        join('src', 'multiarray', 'calculation.h'),
        join('src', 'multiarray', 'cblasfuncs.h'),
        join('src', 'multiarray', 'common.h'),
        join('src', 'multiarray', 'convert_datatype.h'),
        join('src', 'multiarray', 'convert.h'),
        join('src', 'multiarray', 'conversion_utils.h'),
        join('src', 'multiarray', 'ctors.h'),
        join('src', 'multiarray', 'descriptor.h'),
        join('src', 'multiarray', 'getset.h'),
        join('src', 'multiarray', 'hashdescr.h'),
        join('src', 'multiarray', 'iterators.h'),
        join('src', 'multiarray', 'mapping.h'),
        join('src', 'multiarray', 'methods.h'),
        join('src', 'multiarray', 'multiarraymodule.h'),
        join('src', 'multiarray', 'nditer_impl.h'),
        join('src', 'multiarray', 'number.h'),
        join('src', 'multiarray', 'numpyos.h'),
        join('src', 'multiarray', 'refcount.h'),
        join('src', 'multiarray', 'scalartypes.h'),
        join('src', 'multiarray', 'sequence.h'),
        join('src', 'multiarray', 'shape.h'),
        join('src', 'multiarray', 'ucsnarrow.h'),
        join('src', 'multiarray', 'usertypes.h'),
        join('src', 'multiarray', 'vdot.h'),
        join('src', 'private', 'npy_config.h'),
        join('src', 'private', 'templ_common.h.src'),
        join('src', 'private', 'lowlevel_strided_loops.h'),
        join('src', 'private', 'mem_overlap.h'),
        join('src', 'private', 'npy_extint128.h'),
        join('include', 'numpy', 'arrayobject.h'),
        join('include', 'numpy', '_neighborhood_iterator_imp.h'),
        join('include', 'numpy', 'npy_endian.h'),
        join('include', 'numpy', 'arrayscalars.h'),
        join('include', 'numpy', 'noprefix.h'),
        join('include', 'numpy', 'npy_interrupt.h'),
        join('include', 'numpy', 'npy_3kcompat.h'),
        join('include', 'numpy', 'npy_math.h'),
        join('include', 'numpy', 'halffloat.h'),
        join('include', 'numpy', 'npy_common.h'),
        join('include', 'numpy', 'npy_os.h'),
        join('include', 'numpy', 'utils.h'),
        join('include', 'numpy', 'ndarrayobject.h'),
        join('include', 'numpy', 'npy_cpu.h'),
        join('include', 'numpy', 'numpyconfig.h'),
        join('include', 'numpy', 'ndarraytypes.h'),
        join('include', 'numpy', 'npy_1_7_deprecated_api.h'),
        join('include', 'numpy', '_numpyconfig.h.in'),
        # add library sources as distuils does not consider libraries
        # dependencies
    ] + npysort_sources + npymath_sources

    multiarray_src = [
        join('src', 'multiarray', 'alloc.c'),
        join('src', 'multiarray', 'arrayobject.c'),
        join('src', 'multiarray', 'arraytypes.c.src'),
        join('src', 'multiarray', 'array_assign.c'),
        join('src', 'multiarray', 'array_assign_scalar.c'),
        join('src', 'multiarray', 'array_assign_array.c'),
        join('src', 'multiarray', 'buffer.c'),
        join('src', 'multiarray', 'calculation.c'),
        join('src', 'multiarray', 'compiled_base.c'),
        join('src', 'multiarray', 'common.c'),
        join('src', 'multiarray', 'convert.c'),
        join('src', 'multiarray', 'convert_datatype.c'),
        join('src', 'multiarray', 'conversion_utils.c'),
        join('src', 'multiarray', 'ctors.c'),
        join('src', 'multiarray', 'datetime.c'),
        join('src', 'multiarray', 'datetime_strings.c'),
        join('src', 'multiarray', 'datetime_busday.c'),
        join('src', 'multiarray', 'datetime_busdaycal.c'),
        join('src', 'multiarray', 'descriptor.c'),
        join('src', 'multiarray', 'dtype_transfer.c'),
        join('src', 'multiarray', 'einsum.c.src'),
        join('src', 'multiarray', 'flagsobject.c'),
        join('src', 'multiarray', 'getset.c'),
        join('src', 'multiarray', 'hashdescr.c'),
        join('src', 'multiarray', 'item_selection.c'),
        join('src', 'multiarray', 'iterators.c'),
        join('src', 'multiarray', 'lowlevel_strided_loops.c.src'),
        join('src', 'multiarray', 'mapping.c'),
        join('src', 'multiarray', 'methods.c'),
        join('src', 'multiarray', 'multiarraymodule.c'),
        join('src', 'multiarray', 'nditer_templ.c.src'),
        join('src', 'multiarray', 'nditer_api.c'),
        join('src', 'multiarray', 'nditer_constr.c'),
        join('src', 'multiarray', 'nditer_pywrap.c'),
        join('src', 'multiarray', 'number.c'),
        join('src', 'multiarray', 'numpyos.c'),
        join('src', 'multiarray', 'refcount.c'),
        join('src', 'multiarray', 'sequence.c'),
        join('src', 'multiarray', 'shape.c'),
        join('src', 'multiarray', 'scalarapi.c'),
        join('src', 'multiarray', 'scalartypes.c.src'),
        join('src', 'multiarray', 'usertypes.c'),
        join('src', 'multiarray', 'ucsnarrow.c'),
        join('src', 'multiarray', 'vdot.c'),
        join('src', 'private', 'templ_common.h.src'),
        join('src', 'private', 'mem_overlap.c'),
    ]

    blas_info = get_info('blas_opt', 0)
    if blas_info and ('HAVE_CBLAS', None) in blas_info.get(
            'define_macros', []):
        extra_info = blas_info
        # These files are also in MANIFEST.in so that they are always in
        # the source distribution independently of HAVE_CBLAS.
        multiarray_src.extend([
            join('src', 'multiarray', 'cblasfuncs.c'),
            join('src', 'multiarray', 'python_xerbla.c'),
        ])
        if uses_accelerate_framework(blas_info):
            multiarray_src.extend(get_sgemv_fix())
    else:
        extra_info = {}

    config.add_extension(
        'multiarray',
        sources=multiarray_src + [
            generate_config_h, generate_numpyconfig_h, generate_numpy_api,
            join(codegen_dir, 'generate_numpy_api.py'),
            join('*.py')
        ],
        depends=deps + multiarray_deps,
        libraries=['npymath', 'npysort'],
        extra_info=extra_info)

    #######################################################################
    #                           umath module                              #
    #######################################################################

    # umath version: this function is needed to build foo.c from foo.c.src
    # when foo.c is included in another file and as such not in the src
    # argument of build_ext command
    def generate_umath_templated_sources(ext, build_dir):
        from numpy.distutils.misc_util import get_cmd

        subpath = join('src', 'umath')
        sources = [
            join(local_dir, subpath, 'loops.h.src'),
            join(local_dir, subpath, 'loops.c.src'),
            join(local_dir, subpath, 'scalarmath.c.src'),
            join(local_dir, subpath, 'simd.inc.src')
        ]

        # numpy.distutils generate .c from .c.src in weird directories, we have
        # to add them there as they depend on the build_dir
        config.add_include_dirs(join(build_dir, subpath))
        cmd = get_cmd('build_src')
        cmd.ensure_finalized()
        cmd.template_sources(sources, ext)

    def generate_umath_c(ext, build_dir):
        target = join(build_dir, header_dir, '__umath_generated.c')
        dir = os.path.dirname(target)
        if not os.path.exists(dir):
            os.makedirs(dir)
        script = generate_umath_py
        if newer(script, target):
            f = open(target, 'w')
            f.write(
                generate_umath.make_code(generate_umath.defdict,
                                         generate_umath.__file__))
            f.close()
        return []

    umath_src = [
        join('src', 'umath', 'umathmodule.c'),
        join('src', 'umath', 'reduction.c'),
        join('src', 'umath', 'funcs.inc.src'),
        join('src', 'umath', 'simd.inc.src'),
        join('src', 'umath', 'loops.h.src'),
        join('src', 'umath', 'loops.c.src'),
        join('src', 'umath', 'ufunc_object.c'),
        join('src', 'umath', 'scalarmath.c.src'),
        join('src', 'umath', 'ufunc_type_resolution.c'),
        join('src', 'private', 'mem_overlap.c')
    ]

    umath_deps = [
        generate_umath_py,
        join('include', 'numpy', 'npy_math.h'),
        join('include', 'numpy', 'halffloat.h'),
        join('src', 'multiarray', 'common.h'),
        join('src', 'private', 'templ_common.h.src'),
        join('src', 'umath', 'simd.inc.src'),
        join(codegen_dir, 'generate_ufunc_api.py'),
        join('src', 'private', 'lowlevel_strided_loops.h'),
        join('src', 'private', 'mem_overlap.h'),
        join('src', 'private', 'ufunc_override.h')
    ] + npymath_sources

    config.add_extension(
        'umath',
        sources=umath_src + [
            generate_config_h, generate_numpyconfig_h, generate_umath_c,
            generate_ufunc_api
        ],
        depends=deps + umath_deps,
        libraries=['npymath'],
    )

    #######################################################################
    #                        umath_tests module                           #
    #######################################################################

    config.add_extension('umath_tests',
                         sources=[join('src', 'umath', 'umath_tests.c.src')])

    #######################################################################
    #                   custom rational dtype module                      #
    #######################################################################

    config.add_extension('test_rational',
                         sources=[join('src', 'umath', 'test_rational.c.src')])

    #######################################################################
    #                        struct_ufunc_test module                     #
    #######################################################################

    config.add_extension(
        'struct_ufunc_test',
        sources=[join('src', 'umath', 'struct_ufunc_test.c.src')])

    #######################################################################
    #                     multiarray_tests module                         #
    #######################################################################

    config.add_extension('multiarray_tests',
                         sources=[
                             join('src', 'multiarray',
                                  'multiarray_tests.c.src'),
                             join('src', 'private', 'mem_overlap.c')
                         ],
                         depends=[
                             join('src', 'private', 'mem_overlap.h'),
                             join('src', 'private', 'npy_extint128.h')
                         ])

    #######################################################################
    #                        operand_flag_tests module                    #
    #######################################################################

    config.add_extension(
        'operand_flag_tests',
        sources=[join('src', 'umath', 'operand_flag_tests.c.src')])

    config.add_data_dir('tests')
    config.add_data_dir('tests/data')

    config.make_svn_version_py()

    return config
Exemplo n.º 6
0
def configuration(parent_package="", top_path=None):
    from numpy.distutils.misc_util import Configuration, dot_join
    from numpy.distutils.system_info import get_info

    config = Configuration("core", parent_package, top_path)
    local_dir = config.local_path
    codegen_dir = join(local_dir, "code_generators")

    if is_released(config):
        warnings.simplefilter("error", MismatchCAPIWarning)

    # Check whether we have a mismatch between the set C API VERSION and the
    # actual C API VERSION
    check_api_version(C_API_VERSION, codegen_dir)

    generate_umath_py = join(codegen_dir, "generate_umath.py")
    n = dot_join(config.name, "generate_umath")
    generate_umath = npy_load_module("_".join(n.split(".")), generate_umath_py, (".py", "U", 1))

    header_dir = "include/numpy"  # this is relative to config.path_in_package

    cocache = CallOnceOnly()

    def generate_config_h(ext, build_dir):
        target = join(build_dir, header_dir, "config.h")
        d = os.path.dirname(target)
        if not os.path.exists(d):
            os.makedirs(d)

        if newer(__file__, target):
            config_cmd = config.get_config_cmd()
            log.info("Generating %s", target)

            # Check sizeof
            moredefs, ignored = cocache.check_types(config_cmd, ext, build_dir)

            # Check math library and C99 math funcs availability
            mathlibs = check_mathlib(config_cmd)
            moredefs.append(("MATHLIB", ",".join(mathlibs)))

            check_math_capabilities(config_cmd, moredefs, mathlibs)
            moredefs.extend(cocache.check_ieee_macros(config_cmd)[0])
            moredefs.extend(cocache.check_complex(config_cmd, mathlibs)[0])

            # Signal check
            if is_npy_no_signal():
                moredefs.append("__NPY_PRIVATE_NO_SIGNAL")

            # Windows checks
            if sys.platform == "win32" or os.name == "nt":
                win32_checks(moredefs)

            # C99 restrict keyword
            moredefs.append(("NPY_RESTRICT", config_cmd.check_restrict()))

            # Inline check
            inline = config_cmd.check_inline()

            # Check whether we need our own wide character support
            if not config_cmd.check_decl("Py_UNICODE_WIDE", headers=["Python.h"]):
                PYTHON_HAS_UNICODE_WIDE = True
            else:
                PYTHON_HAS_UNICODE_WIDE = False

            if NPY_RELAXED_STRIDES_CHECKING:
                moredefs.append(("NPY_RELAXED_STRIDES_CHECKING", 1))

            # Get long double representation
            if sys.platform != "darwin":
                rep = check_long_double_representation(config_cmd)
                if rep in [
                    "INTEL_EXTENDED_12_BYTES_LE",
                    "INTEL_EXTENDED_16_BYTES_LE",
                    "MOTOROLA_EXTENDED_12_BYTES_BE",
                    "IEEE_QUAD_LE",
                    "IEEE_QUAD_BE",
                    "IEEE_DOUBLE_LE",
                    "IEEE_DOUBLE_BE",
                    "DOUBLE_DOUBLE_BE",
                    "DOUBLE_DOUBLE_LE",
                ]:
                    moredefs.append(("HAVE_LDOUBLE_%s" % rep, 1))
                else:
                    raise ValueError("Unrecognized long double format: %s" % rep)

            # Py3K check
            if sys.version_info[0] == 3:
                moredefs.append(("NPY_PY3K", 1))

            # Generate the config.h file from moredefs
            target_f = open(target, "w")
            for d in moredefs:
                if isinstance(d, str):
                    target_f.write("#define %s\n" % (d))
                else:
                    target_f.write("#define %s %s\n" % (d[0], d[1]))

            # define inline to our keyword, or nothing
            target_f.write("#ifndef __cplusplus\n")
            if inline == "inline":
                target_f.write("/* #undef inline */\n")
            else:
                target_f.write("#define inline %s\n" % inline)
            target_f.write("#endif\n")

            # add the guard to make sure config.h is never included directly,
            # but always through npy_config.h
            target_f.write(
                """
#ifndef _NPY_NPY_CONFIG_H_
#error config.h should never be included directly, include npy_config.h instead
#endif
"""
            )

            target_f.close()
            print("File:", target)
            target_f = open(target)
            print(target_f.read())
            target_f.close()
            print("EOF")
        else:
            mathlibs = []
            target_f = open(target)
            for line in target_f:
                s = "#define MATHLIB"
                if line.startswith(s):
                    value = line[len(s) :].strip()
                    if value:
                        mathlibs.extend(value.split(","))
            target_f.close()

        # Ugly: this can be called within a library and not an extension,
        # in which case there is no libraries attributes (and none is
        # needed).
        if hasattr(ext, "libraries"):
            ext.libraries.extend(mathlibs)

        incl_dir = os.path.dirname(target)
        if incl_dir not in config.numpy_include_dirs:
            config.numpy_include_dirs.append(incl_dir)

        return target

    def generate_numpyconfig_h(ext, build_dir):
        """Depends on config.h: generate_config_h has to be called before !"""
        # put private include directory in build_dir on search path
        # allows using code generation in headers headers
        config.add_include_dirs(join(build_dir, "src", "private"))

        target = join(build_dir, header_dir, "_numpyconfig.h")
        d = os.path.dirname(target)
        if not os.path.exists(d):
            os.makedirs(d)
        if newer(__file__, target):
            config_cmd = config.get_config_cmd()
            log.info("Generating %s", target)

            # Check sizeof
            ignored, moredefs = cocache.check_types(config_cmd, ext, build_dir)

            if is_npy_no_signal():
                moredefs.append(("NPY_NO_SIGNAL", 1))

            if is_npy_no_smp():
                moredefs.append(("NPY_NO_SMP", 1))
            else:
                moredefs.append(("NPY_NO_SMP", 0))

            mathlibs = check_mathlib(config_cmd)
            moredefs.extend(cocache.check_ieee_macros(config_cmd)[1])
            moredefs.extend(cocache.check_complex(config_cmd, mathlibs)[1])

            if NPY_RELAXED_STRIDES_CHECKING:
                moredefs.append(("NPY_RELAXED_STRIDES_CHECKING", 1))

            # Check wether we can use inttypes (C99) formats
            if config_cmd.check_decl("PRIdPTR", headers=["inttypes.h"]):
                moredefs.append(("NPY_USE_C99_FORMATS", 1))

            # visibility check
            hidden_visibility = visibility_define(config_cmd)
            moredefs.append(("NPY_VISIBILITY_HIDDEN", hidden_visibility))

            # Add the C API/ABI versions
            moredefs.append(("NPY_ABI_VERSION", "0x%.8X" % C_ABI_VERSION))
            moredefs.append(("NPY_API_VERSION", "0x%.8X" % C_API_VERSION))

            # Add moredefs to header
            target_f = open(target, "w")
            for d in moredefs:
                if isinstance(d, str):
                    target_f.write("#define %s\n" % (d))
                else:
                    target_f.write("#define %s %s\n" % (d[0], d[1]))

            # Define __STDC_FORMAT_MACROS
            target_f.write(
                """
#ifndef __STDC_FORMAT_MACROS
#define __STDC_FORMAT_MACROS 1
#endif
"""
            )
            target_f.close()

            # Dump the numpyconfig.h header to stdout
            print("File: %s" % target)
            target_f = open(target)
            print(target_f.read())
            target_f.close()
            print("EOF")
        config.add_data_files((header_dir, target))
        return target

    def generate_api_func(module_name):
        def generate_api(ext, build_dir):
            script = join(codegen_dir, module_name + ".py")
            sys.path.insert(0, codegen_dir)
            try:
                m = __import__(module_name)
                log.info("executing %s", script)
                h_file, c_file, doc_file = m.generate_api(os.path.join(build_dir, header_dir))
            finally:
                del sys.path[0]
            config.add_data_files((header_dir, h_file), (header_dir, doc_file))
            return (h_file,)

        return generate_api

    generate_numpy_api = generate_api_func("generate_numpy_api")
    generate_ufunc_api = generate_api_func("generate_ufunc_api")

    config.add_include_dirs(join(local_dir, "src", "private"))
    config.add_include_dirs(join(local_dir, "src"))
    config.add_include_dirs(join(local_dir))

    config.add_data_files("include/numpy/*.h")
    config.add_include_dirs(join("src", "npymath"))
    config.add_include_dirs(join("src", "multiarray"))
    config.add_include_dirs(join("src", "umath"))
    config.add_include_dirs(join("src", "npysort"))

    config.add_define_macros([("HAVE_NPY_CONFIG_H", "1")])
    config.add_define_macros([("_FILE_OFFSET_BITS", "64")])
    config.add_define_macros([("_LARGEFILE_SOURCE", "1")])
    config.add_define_macros([("_LARGEFILE64_SOURCE", "1")])

    config.numpy_include_dirs.extend(config.paths("include"))

    deps = [join("src", "npymath", "_signbit.c"), join("include", "numpy", "*object.h"), join(codegen_dir, "genapi.py")]

    #######################################################################
    #                            dummy module                             #
    #######################################################################

    # npymath needs the config.h and numpyconfig.h files to be generated, but
    # build_clib cannot handle generate_config_h and generate_numpyconfig_h
    # (don't ask). Because clib are generated before extensions, we have to
    # explicitly add an extension which has generate_config_h and
    # generate_numpyconfig_h as sources *before* adding npymath.

    config.add_extension(
        "_dummy", sources=[join("src", "dummymodule.c"), generate_config_h, generate_numpyconfig_h, generate_numpy_api]
    )

    #######################################################################
    #                          npymath library                            #
    #######################################################################

    subst_dict = dict([("sep", os.path.sep), ("pkgname", "numpy.core")])

    def get_mathlib_info(*args):
        # Another ugly hack: the mathlib info is known once build_src is run,
        # but we cannot use add_installed_pkg_config here either, so we only
        # update the substition dictionary during npymath build
        config_cmd = config.get_config_cmd()

        # Check that the toolchain works, to fail early if it doesn't
        # (avoid late errors with MATHLIB which are confusing if the
        # compiler does not work).
        st = config_cmd.try_link("int main(void) { return 0;}")
        if not st:
            raise RuntimeError("Broken toolchain: cannot link a simple C program")
        mlibs = check_mathlib(config_cmd)

        posix_mlib = " ".join(["-l%s" % l for l in mlibs])
        msvc_mlib = " ".join(["%s.lib" % l for l in mlibs])
        subst_dict["posix_mathlib"] = posix_mlib
        subst_dict["msvc_mathlib"] = msvc_mlib

    npymath_sources = [
        join("src", "npymath", "npy_math.c.src"),
        join("src", "npymath", "ieee754.c.src"),
        join("src", "npymath", "npy_math_complex.c.src"),
        join("src", "npymath", "halffloat.c"),
    ]
    config.add_installed_library("npymath", sources=npymath_sources + [get_mathlib_info], install_dir="lib")
    config.add_npy_pkg_config("npymath.ini.in", "lib/npy-pkg-config", subst_dict)
    config.add_npy_pkg_config("mlib.ini.in", "lib/npy-pkg-config", subst_dict)

    #######################################################################
    #                         npysort library                             #
    #######################################################################

    # This library is created for the build but it is not installed
    npysort_sources = [
        join("src", "npysort", "quicksort.c.src"),
        join("src", "npysort", "mergesort.c.src"),
        join("src", "npysort", "heapsort.c.src"),
        join("src", "private", "npy_partition.h.src"),
        join("src", "npysort", "selection.c.src"),
        join("src", "private", "npy_binsearch.h.src"),
        join("src", "npysort", "binsearch.c.src"),
    ]
    config.add_library("npysort", sources=npysort_sources, include_dirs=[])

    #######################################################################
    #                        multiarray module                            #
    #######################################################################

    # Multiarray version: this function is needed to build foo.c from foo.c.src
    # when foo.c is included in another file and as such not in the src
    # argument of build_ext command
    def generate_multiarray_templated_sources(ext, build_dir):
        from numpy.distutils.misc_util import get_cmd

        subpath = join("src", "multiarray")
        sources = [
            join(local_dir, subpath, "scalartypes.c.src"),
            join(local_dir, subpath, "arraytypes.c.src"),
            join(local_dir, subpath, "nditer_templ.c.src"),
            join(local_dir, subpath, "lowlevel_strided_loops.c.src"),
            join(local_dir, subpath, "einsum.c.src"),
            join(local_dir, "src", "private", "templ_common.h.src"),
        ]

        # numpy.distutils generate .c from .c.src in weird directories, we have
        # to add them there as they depend on the build_dir
        config.add_include_dirs(join(build_dir, subpath))
        cmd = get_cmd("build_src")
        cmd.ensure_finalized()
        cmd.template_sources(sources, ext)

    multiarray_deps = (
        [
            join("src", "multiarray", "arrayobject.h"),
            join("src", "multiarray", "arraytypes.h"),
            join("src", "multiarray", "array_assign.h"),
            join("src", "multiarray", "buffer.h"),
            join("src", "multiarray", "calculation.h"),
            join("src", "multiarray", "cblasfuncs.h"),
            join("src", "multiarray", "common.h"),
            join("src", "multiarray", "convert_datatype.h"),
            join("src", "multiarray", "convert.h"),
            join("src", "multiarray", "conversion_utils.h"),
            join("src", "multiarray", "ctors.h"),
            join("src", "multiarray", "descriptor.h"),
            join("src", "multiarray", "getset.h"),
            join("src", "multiarray", "hashdescr.h"),
            join("src", "multiarray", "iterators.h"),
            join("src", "multiarray", "mapping.h"),
            join("src", "multiarray", "methods.h"),
            join("src", "multiarray", "multiarraymodule.h"),
            join("src", "multiarray", "nditer_impl.h"),
            join("src", "multiarray", "numpymemoryview.h"),
            join("src", "multiarray", "number.h"),
            join("src", "multiarray", "numpyos.h"),
            join("src", "multiarray", "refcount.h"),
            join("src", "multiarray", "scalartypes.h"),
            join("src", "multiarray", "sequence.h"),
            join("src", "multiarray", "shape.h"),
            join("src", "multiarray", "ucsnarrow.h"),
            join("src", "multiarray", "usertypes.h"),
            join("src", "multiarray", "vdot.h"),
            join("src", "private", "npy_config.h"),
            join("src", "private", "templ_common.h.src"),
            join("src", "private", "lowlevel_strided_loops.h"),
            join("src", "private", "mem_overlap.h"),
            join("src", "private", "npy_extint128.h"),
            join("include", "numpy", "arrayobject.h"),
            join("include", "numpy", "_neighborhood_iterator_imp.h"),
            join("include", "numpy", "npy_endian.h"),
            join("include", "numpy", "arrayscalars.h"),
            join("include", "numpy", "noprefix.h"),
            join("include", "numpy", "npy_interrupt.h"),
            join("include", "numpy", "npy_3kcompat.h"),
            join("include", "numpy", "npy_math.h"),
            join("include", "numpy", "halffloat.h"),
            join("include", "numpy", "npy_common.h"),
            join("include", "numpy", "npy_os.h"),
            join("include", "numpy", "utils.h"),
            join("include", "numpy", "ndarrayobject.h"),
            join("include", "numpy", "npy_cpu.h"),
            join("include", "numpy", "numpyconfig.h"),
            join("include", "numpy", "ndarraytypes.h"),
            join("include", "numpy", "npy_1_7_deprecated_api.h"),
            join("include", "numpy", "_numpyconfig.h.in"),
            # add library sources as distuils does not consider libraries
            # dependencies
        ]
        + npysort_sources
        + npymath_sources
    )

    multiarray_src = [
        join("src", "multiarray", "alloc.c"),
        join("src", "multiarray", "arrayobject.c"),
        join("src", "multiarray", "arraytypes.c.src"),
        join("src", "multiarray", "array_assign.c"),
        join("src", "multiarray", "array_assign_scalar.c"),
        join("src", "multiarray", "array_assign_array.c"),
        join("src", "multiarray", "buffer.c"),
        join("src", "multiarray", "calculation.c"),
        join("src", "multiarray", "compiled_base.c"),
        join("src", "multiarray", "common.c"),
        join("src", "multiarray", "convert.c"),
        join("src", "multiarray", "convert_datatype.c"),
        join("src", "multiarray", "conversion_utils.c"),
        join("src", "multiarray", "ctors.c"),
        join("src", "multiarray", "datetime.c"),
        join("src", "multiarray", "datetime_strings.c"),
        join("src", "multiarray", "datetime_busday.c"),
        join("src", "multiarray", "datetime_busdaycal.c"),
        join("src", "multiarray", "descriptor.c"),
        join("src", "multiarray", "dtype_transfer.c"),
        join("src", "multiarray", "einsum.c.src"),
        join("src", "multiarray", "flagsobject.c"),
        join("src", "multiarray", "getset.c"),
        join("src", "multiarray", "hashdescr.c"),
        join("src", "multiarray", "item_selection.c"),
        join("src", "multiarray", "iterators.c"),
        join("src", "multiarray", "lowlevel_strided_loops.c.src"),
        join("src", "multiarray", "mapping.c"),
        join("src", "multiarray", "methods.c"),
        join("src", "multiarray", "multiarraymodule.c"),
        join("src", "multiarray", "nditer_templ.c.src"),
        join("src", "multiarray", "nditer_api.c"),
        join("src", "multiarray", "nditer_constr.c"),
        join("src", "multiarray", "nditer_pywrap.c"),
        join("src", "multiarray", "number.c"),
        join("src", "multiarray", "numpymemoryview.c"),
        join("src", "multiarray", "numpyos.c"),
        join("src", "multiarray", "refcount.c"),
        join("src", "multiarray", "sequence.c"),
        join("src", "multiarray", "shape.c"),
        join("src", "multiarray", "scalarapi.c"),
        join("src", "multiarray", "scalartypes.c.src"),
        join("src", "multiarray", "usertypes.c"),
        join("src", "multiarray", "ucsnarrow.c"),
        join("src", "multiarray", "vdot.c"),
        join("src", "private", "templ_common.h.src"),
        join("src", "private", "mem_overlap.c"),
    ]

    blas_info = get_info("blas_opt", 0)
    if blas_info and ("HAVE_CBLAS", None) in blas_info.get("define_macros", []):
        extra_info = blas_info
        # These files are also in MANIFEST.in so that they are always in
        # the source distribution independently of HAVE_CBLAS.
        multiarray_src.extend([join("src", "multiarray", "cblasfuncs.c"), join("src", "multiarray", "python_xerbla.c")])
        if uses_accelerate_framework(blas_info):
            multiarray_src.extend(get_sgemv_fix())
    else:
        extra_info = {}

    config.add_extension(
        "multiarray",
        sources=multiarray_src
        + [
            generate_config_h,
            generate_numpyconfig_h,
            generate_numpy_api,
            join(codegen_dir, "generate_numpy_api.py"),
            join("*.py"),
        ],
        depends=deps + multiarray_deps,
        libraries=["npymath", "npysort"],
        extra_info=extra_info,
    )

    #######################################################################
    #                           umath module                              #
    #######################################################################

    # umath version: this function is needed to build foo.c from foo.c.src
    # when foo.c is included in another file and as such not in the src
    # argument of build_ext command
    def generate_umath_templated_sources(ext, build_dir):
        from numpy.distutils.misc_util import get_cmd

        subpath = join("src", "umath")
        sources = [
            join(local_dir, subpath, "loops.h.src"),
            join(local_dir, subpath, "loops.c.src"),
            join(local_dir, subpath, "scalarmath.c.src"),
            join(local_dir, subpath, "simd.inc.src"),
        ]

        # numpy.distutils generate .c from .c.src in weird directories, we have
        # to add them there as they depend on the build_dir
        config.add_include_dirs(join(build_dir, subpath))
        cmd = get_cmd("build_src")
        cmd.ensure_finalized()
        cmd.template_sources(sources, ext)

    def generate_umath_c(ext, build_dir):
        target = join(build_dir, header_dir, "__umath_generated.c")
        dir = os.path.dirname(target)
        if not os.path.exists(dir):
            os.makedirs(dir)
        script = generate_umath_py
        if newer(script, target):
            f = open(target, "w")
            f.write(generate_umath.make_code(generate_umath.defdict, generate_umath.__file__))
            f.close()
        return []

    umath_src = [
        join("src", "umath", "umathmodule.c"),
        join("src", "umath", "reduction.c"),
        join("src", "umath", "funcs.inc.src"),
        join("src", "umath", "simd.inc.src"),
        join("src", "umath", "loops.h.src"),
        join("src", "umath", "loops.c.src"),
        join("src", "umath", "ufunc_object.c"),
        join("src", "umath", "scalarmath.c.src"),
        join("src", "umath", "ufunc_type_resolution.c"),
    ]

    umath_deps = [
        generate_umath_py,
        join("include", "numpy", "npy_math.h"),
        join("include", "numpy", "halffloat.h"),
        join("src", "multiarray", "common.h"),
        join("src", "private", "templ_common.h.src"),
        join("src", "umath", "simd.inc.src"),
        join(codegen_dir, "generate_ufunc_api.py"),
        join("src", "private", "ufunc_override.h"),
    ] + npymath_sources

    config.add_extension(
        "umath",
        sources=umath_src + [generate_config_h, generate_numpyconfig_h, generate_umath_c, generate_ufunc_api],
        depends=deps + umath_deps,
        libraries=["npymath"],
    )

    #######################################################################
    #                        umath_tests module                           #
    #######################################################################

    config.add_extension("umath_tests", sources=[join("src", "umath", "umath_tests.c.src")])

    #######################################################################
    #                   custom rational dtype module                      #
    #######################################################################

    config.add_extension("test_rational", sources=[join("src", "umath", "test_rational.c.src")])

    #######################################################################
    #                        struct_ufunc_test module                     #
    #######################################################################

    config.add_extension("struct_ufunc_test", sources=[join("src", "umath", "struct_ufunc_test.c.src")])

    #######################################################################
    #                     multiarray_tests module                         #
    #######################################################################

    config.add_extension(
        "multiarray_tests",
        sources=[join("src", "multiarray", "multiarray_tests.c.src"), join("src", "private", "mem_overlap.c")],
        depends=[join("src", "private", "mem_overlap.h"), join("src", "private", "npy_extint128.h")],
    )

    #######################################################################
    #                        operand_flag_tests module                    #
    #######################################################################

    config.add_extension("operand_flag_tests", sources=[join("src", "umath", "operand_flag_tests.c.src")])

    config.add_data_dir("tests")
    config.add_data_dir("tests/data")

    config.make_svn_version_py()

    return config
Exemplo n.º 7
0
def configuration(parent_package="", top_path=None):
    from numpy.distutils.misc_util import Configuration, dot_join
    from numpy.distutils.system_info import get_info, blas_opt_info, lapack_opt_info

    # Accelerate is buggy, disallow it. See also numpy/linalg/setup.py
    for opt_order in (blas_opt_info.blas_order, lapack_opt_info.lapack_order):
        if "accelerate" in opt_order:
            opt_order.remove("accelerate")

    config = Configuration("core", parent_package, top_path)
    local_dir = config.local_path
    codegen_dir = join(local_dir, "code_generators")

    if is_released(config):
        warnings.simplefilter("error", MismatchCAPIWarning)

    # Check whether we have a mismatch between the set C API VERSION and the
    # actual C API VERSION
    check_api_version(C_API_VERSION, codegen_dir)

    generate_umath_py = join(codegen_dir, "generate_umath.py")
    n = dot_join(config.name, "generate_umath")
    generate_umath = npy_load_module("_".join(n.split(".")), generate_umath_py,
                                     (".py", "U", 1))

    header_dir = "include/numpy"  # this is relative to config.path_in_package

    cocache = CallOnceOnly()

    def generate_config_h(ext, build_dir):
        target = join(build_dir, header_dir, "config.h")
        d = os.path.dirname(target)
        if not os.path.exists(d):
            os.makedirs(d)

        if newer(__file__, target):
            config_cmd = config.get_config_cmd()
            log.info("Generating %s", target)

            # Check sizeof
            moredefs, ignored = cocache.check_types(config_cmd, ext, build_dir)

            # Check math library and C99 math funcs availability
            mathlibs = check_mathlib(config_cmd)
            moredefs.append(("MATHLIB", ",".join(mathlibs)))

            check_math_capabilities(config_cmd, ext, moredefs, mathlibs)
            moredefs.extend(cocache.check_ieee_macros(config_cmd)[0])
            moredefs.extend(cocache.check_complex(config_cmd, mathlibs)[0])

            # Signal check
            if is_npy_no_signal():
                moredefs.append("__NPY_PRIVATE_NO_SIGNAL")

            # Windows checks
            if sys.platform == "win32" or os.name == "nt":
                win32_checks(moredefs)

            # C99 restrict keyword
            moredefs.append(("NPY_RESTRICT", config_cmd.check_restrict()))

            # Inline check
            inline = config_cmd.check_inline()

            # Use relaxed stride checking
            if NPY_RELAXED_STRIDES_CHECKING:
                moredefs.append(("NPY_RELAXED_STRIDES_CHECKING", 1))

            # Use bogus stride debug aid when relaxed strides are enabled
            if NPY_RELAXED_STRIDES_DEBUG:
                moredefs.append(("NPY_RELAXED_STRIDES_DEBUG", 1))

            # Use the new experimental casting implementation in NumPy 1.20:
            if NPY_USE_NEW_CASTINGIMPL:
                moredefs.append(("NPY_USE_NEW_CASTINGIMPL", 1))

            # Get long double representation
            rep = check_long_double_representation(config_cmd)
            moredefs.append(("HAVE_LDOUBLE_%s" % rep, 1))

            if check_for_right_shift_internal_compiler_error(config_cmd):
                moredefs.append("NPY_DO_NOT_OPTIMIZE_LONG_right_shift")
                moredefs.append("NPY_DO_NOT_OPTIMIZE_ULONG_right_shift")
                moredefs.append("NPY_DO_NOT_OPTIMIZE_LONGLONG_right_shift")
                moredefs.append("NPY_DO_NOT_OPTIMIZE_ULONGLONG_right_shift")

            # Generate the config.h file from moredefs
            with open(target, "w") as target_f:
                for d in moredefs:
                    if isinstance(d, str):
                        target_f.write("#define %s\n" % (d))
                    else:
                        target_f.write("#define %s %s\n" % (d[0], d[1]))

                # define inline to our keyword, or nothing
                target_f.write("#ifndef __cplusplus\n")
                if inline == "inline":
                    target_f.write("/* #undef inline */\n")
                else:
                    target_f.write("#define inline %s\n" % inline)
                target_f.write("#endif\n")

                # add the guard to make sure config.h is never included directly,
                # but always through npy_config.h
                target_f.write(
                    textwrap.dedent("""
                    #ifndef _NPY_NPY_CONFIG_H_
                    #error config.h should never be included directly, include npy_config.h instead
                    #endif
                    """))

            log.info("File: %s" % target)
            with open(target) as target_f:
                log.info(target_f.read())
            log.info("EOF")
        else:
            mathlibs = []
            with open(target) as target_f:
                for line in target_f:
                    s = "#define MATHLIB"
                    if line.startswith(s):
                        value = line[len(s):].strip()
                        if value:
                            mathlibs.extend(value.split(","))

        # Ugly: this can be called within a library and not an extension,
        # in which case there is no libraries attributes (and none is
        # needed).
        if hasattr(ext, "libraries"):
            ext.libraries.extend(mathlibs)

        incl_dir = os.path.dirname(target)
        if incl_dir not in config.numpy_include_dirs:
            config.numpy_include_dirs.append(incl_dir)

        return target

    def generate_numpyconfig_h(ext, build_dir):
        """Depends on config.h: generate_config_h has to be called before !"""
        # put common include directory in build_dir on search path
        # allows using code generation in headers
        config.add_include_dirs(join(build_dir, "src", "common"))
        config.add_include_dirs(join(build_dir, "src", "npymath"))

        target = join(build_dir, header_dir, "_numpyconfig.h")
        d = os.path.dirname(target)
        if not os.path.exists(d):
            os.makedirs(d)
        if newer(__file__, target):
            config_cmd = config.get_config_cmd()
            log.info("Generating %s", target)

            # Check sizeof
            ignored, moredefs = cocache.check_types(config_cmd, ext, build_dir)

            if is_npy_no_signal():
                moredefs.append(("NPY_NO_SIGNAL", 1))

            if is_npy_no_smp():
                moredefs.append(("NPY_NO_SMP", 1))
            else:
                moredefs.append(("NPY_NO_SMP", 0))

            mathlibs = check_mathlib(config_cmd)
            moredefs.extend(cocache.check_ieee_macros(config_cmd)[1])
            moredefs.extend(cocache.check_complex(config_cmd, mathlibs)[1])

            if NPY_RELAXED_STRIDES_CHECKING:
                moredefs.append(("NPY_RELAXED_STRIDES_CHECKING", 1))

            if NPY_RELAXED_STRIDES_DEBUG:
                moredefs.append(("NPY_RELAXED_STRIDES_DEBUG", 1))

            # Check whether we can use inttypes (C99) formats
            if config_cmd.check_decl("PRIdPTR", headers=["inttypes.h"]):
                moredefs.append(("NPY_USE_C99_FORMATS", 1))

            # visibility check
            hidden_visibility = visibility_define(config_cmd)
            moredefs.append(("NPY_VISIBILITY_HIDDEN", hidden_visibility))

            # Add the C API/ABI versions
            moredefs.append(("NPY_ABI_VERSION", "0x%.8X" % C_ABI_VERSION))
            moredefs.append(("NPY_API_VERSION", "0x%.8X" % C_API_VERSION))

            # Add moredefs to header
            with open(target, "w") as target_f:
                for d in moredefs:
                    if isinstance(d, str):
                        target_f.write("#define %s\n" % (d))
                    else:
                        target_f.write("#define %s %s\n" % (d[0], d[1]))

                # Define __STDC_FORMAT_MACROS
                target_f.write(
                    textwrap.dedent("""
                    #ifndef __STDC_FORMAT_MACROS
                    #define __STDC_FORMAT_MACROS 1
                    #endif
                    """))

            # Dump the numpyconfig.h header to stdout
            log.info("File: %s" % target)
            with open(target) as target_f:
                log.info(target_f.read())
            log.info("EOF")
        config.add_data_files((header_dir, target))
        return target

    def generate_api_func(module_name):
        def generate_api(ext, build_dir):
            script = join(codegen_dir, module_name + ".py")
            sys.path.insert(0, codegen_dir)
            try:
                m = __import__(module_name)
                log.info("executing %s", script)
                h_file, c_file, doc_file = m.generate_api(
                    os.path.join(build_dir, header_dir))
            finally:
                del sys.path[0]
            config.add_data_files((header_dir, h_file), (header_dir, doc_file))
            return (h_file, )

        return generate_api

    generate_numpy_api = generate_api_func("generate_numpy_api")
    generate_ufunc_api = generate_api_func("generate_ufunc_api")

    config.add_include_dirs(join(local_dir, "src", "common"))
    config.add_include_dirs(join(local_dir, "src"))
    config.add_include_dirs(join(local_dir))

    config.add_data_dir("include/numpy")
    config.add_include_dirs(join("src", "npymath"))
    config.add_include_dirs(join("src", "multiarray"))
    config.add_include_dirs(join("src", "umath"))
    config.add_include_dirs(join("src", "npysort"))
    config.add_include_dirs(join("src", "_simd"))

    config.add_define_macros([
        ("NPY_INTERNAL_BUILD", "1")
    ])  # this macro indicates that Numpy build is in process
    config.add_define_macros([("HAVE_NPY_CONFIG_H", "1")])
    if sys.platform[:3] == "aix":
        config.add_define_macros([("_LARGE_FILES", None)])
    else:
        config.add_define_macros([("_FILE_OFFSET_BITS", "64")])
        config.add_define_macros([("_LARGEFILE_SOURCE", "1")])
        config.add_define_macros([("_LARGEFILE64_SOURCE", "1")])

    config.numpy_include_dirs.extend(config.paths("include"))

    deps = [
        join("src", "npymath", "_signbit.c"),
        join("include", "numpy", "*object.h"),
        join(codegen_dir, "genapi.py"),
    ]

    #######################################################################
    #                          npymath library                            #
    #######################################################################

    subst_dict = dict([("sep", os.path.sep), ("pkgname", "numpy.core")])

    def get_mathlib_info(*args):
        # Another ugly hack: the mathlib info is known once build_src is run,
        # but we cannot use add_installed_pkg_config here either, so we only
        # update the substitution dictionary during npymath build
        config_cmd = config.get_config_cmd()

        # Check that the toolchain works, to fail early if it doesn't
        # (avoid late errors with MATHLIB which are confusing if the
        # compiler does not work).
        st = config_cmd.try_link("int main(void) { return 0;}")
        if not st:
            # rerun the failing command in verbose mode
            config_cmd.compiler.verbose = True
            config_cmd.try_link("int main(void) { return 0;}")
            raise RuntimeError(
                "Broken toolchain: cannot link a simple C program")
        mlibs = check_mathlib(config_cmd)

        posix_mlib = " ".join(["-l%s" % l for l in mlibs])
        msvc_mlib = " ".join(["%s.lib" % l for l in mlibs])
        subst_dict["posix_mathlib"] = posix_mlib
        subst_dict["msvc_mathlib"] = msvc_mlib

    npymath_sources = [
        join("src", "npymath", "npy_math_internal.h.src"),
        join("src", "npymath", "npy_math.c"),
        join("src", "npymath", "ieee754.c.src"),
        join("src", "npymath", "npy_math_complex.c.src"),
        join("src", "npymath", "halffloat.c"),
    ]

    # Must be true for CRT compilers but not MinGW/cygwin. See gh-9977.
    # Intel and Clang also don't seem happy with /GL
    is_msvc = platform.platform().startswith(
        "Windows") and platform.python_compiler().startswith("MS")
    config.add_installed_library(
        "npymath",
        sources=npymath_sources + [get_mathlib_info],
        install_dir="lib",
        build_info={
            "include_dirs":
            [],  # empty list required for creating npy_math_internal.h
            "extra_compiler_args": (["/GL-"] if is_msvc else []),
        },
    )
    config.add_npy_pkg_config("npymath.ini.in", "lib/npy-pkg-config",
                              subst_dict)
    config.add_npy_pkg_config("mlib.ini.in", "lib/npy-pkg-config", subst_dict)

    #######################################################################
    #                     multiarray_tests module                         #
    #######################################################################

    config.add_extension(
        "_multiarray_tests",
        sources=[
            join("src", "multiarray", "_multiarray_tests.c.src"),
            join("src", "common", "mem_overlap.c"),
        ],
        depends=[
            join("src", "common", "mem_overlap.h"),
            join("src", "common", "npy_extint128.h"),
        ],
        libraries=["npymath"],
    )

    #######################################################################
    #             _multiarray_umath module - common part                  #
    #######################################################################

    common_deps = [
        join("src", "common", "array_assign.h"),
        join("src", "common", "binop_override.h"),
        join("src", "common", "cblasfuncs.h"),
        join("src", "common", "lowlevel_strided_loops.h"),
        join("src", "common", "mem_overlap.h"),
        join("src", "common", "npy_cblas.h"),
        join("src", "common", "npy_config.h"),
        join("src", "common", "npy_ctypes.h"),
        join("src", "common", "npy_extint128.h"),
        join("src", "common", "npy_import.h"),
        join("src", "common", "npy_longdouble.h"),
        join("src", "common", "templ_common.h.src"),
        join("src", "common", "ucsnarrow.h"),
        join("src", "common", "ufunc_override.h"),
        join("src", "common", "umathmodule.h"),
        join("src", "common", "numpyos.h"),
        join("src", "common", "npy_cpu_dispatch.h"),
        join("src", "common", "simd", "simd.h"),
    ]

    common_src = [
        join("src", "common", "array_assign.c"),
        join("src", "common", "mem_overlap.c"),
        join("src", "common", "npy_longdouble.c"),
        join("src", "common", "templ_common.h.src"),
        join("src", "common", "ucsnarrow.c"),
        join("src", "common", "ufunc_override.c"),
        join("src", "common", "numpyos.c"),
        join("src", "common", "npy_cpu_features.c.src"),
    ]

    if os.environ.get("NPY_USE_BLAS_ILP64", "0") != "0":
        blas_info = get_info("blas_ilp64_opt", 2)
    else:
        blas_info = get_info("blas_opt", 0)

    have_blas = blas_info and ("HAVE_CBLAS", None) in blas_info.get(
        "define_macros", [])

    if have_blas:
        extra_info = blas_info
        # These files are also in MANIFEST.in so that they are always in
        # the source distribution independently of HAVE_CBLAS.
        common_src.extend([
            join("src", "common", "cblasfuncs.c"),
            join("src", "common", "python_xerbla.c"),
        ])
    else:
        extra_info = {}

    #######################################################################
    #             _multiarray_umath module - multiarray part              #
    #######################################################################

    multiarray_deps = [
        join("src", "multiarray", "abstractdtypes.h"),
        join("src", "multiarray", "arrayobject.h"),
        join("src", "multiarray", "arraytypes.h"),
        join("src", "multiarray", "arrayfunction_override.h"),
        join("src", "multiarray", "array_coercion.h"),
        join("src", "multiarray", "array_method.h"),
        join("src", "multiarray", "npy_buffer.h"),
        join("src", "multiarray", "calculation.h"),
        join("src", "multiarray", "common.h"),
        join("src", "multiarray", "convert_datatype.h"),
        join("src", "multiarray", "convert.h"),
        join("src", "multiarray", "conversion_utils.h"),
        join("src", "multiarray", "ctors.h"),
        join("src", "multiarray", "descriptor.h"),
        join("src", "multiarray", "dtypemeta.h"),
        join("src", "multiarray", "dragon4.h"),
        join("src", "multiarray", "einsum_debug.h"),
        join("src", "multiarray", "einsum_sumprod.h"),
        join("src", "multiarray", "getset.h"),
        join("src", "multiarray", "hashdescr.h"),
        join("src", "multiarray", "iterators.h"),
        join("src", "multiarray", "legacy_dtype_implementation.h"),
        join("src", "multiarray", "mapping.h"),
        join("src", "multiarray", "methods.h"),
        join("src", "multiarray", "multiarraymodule.h"),
        join("src", "multiarray", "nditer_impl.h"),
        join("src", "multiarray", "number.h"),
        join("src", "multiarray", "refcount.h"),
        join("src", "multiarray", "scalartypes.h"),
        join("src", "multiarray", "sequence.h"),
        join("src", "multiarray", "shape.h"),
        join("src", "multiarray", "strfuncs.h"),
        join("src", "multiarray", "typeinfo.h"),
        join("src", "multiarray", "usertypes.h"),
        join("src", "multiarray", "vdot.h"),
        join("include", "numpy", "arrayobject.h"),
        join("include", "numpy", "_neighborhood_iterator_imp.h"),
        join("include", "numpy", "npy_endian.h"),
        join("include", "numpy", "arrayscalars.h"),
        join("include", "numpy", "noprefix.h"),
        join("include", "numpy", "npy_interrupt.h"),
        join("include", "numpy", "npy_3kcompat.h"),
        join("include", "numpy", "npy_math.h"),
        join("include", "numpy", "halffloat.h"),
        join("include", "numpy", "npy_common.h"),
        join("include", "numpy", "npy_os.h"),
        join("include", "numpy", "utils.h"),
        join("include", "numpy", "ndarrayobject.h"),
        join("include", "numpy", "npy_cpu.h"),
        join("include", "numpy", "numpyconfig.h"),
        join("include", "numpy", "ndarraytypes.h"),
        join("include", "numpy", "npy_1_7_deprecated_api.h"),
        # add library sources as distuils does not consider libraries
        # dependencies
    ] + npymath_sources

    multiarray_src = [
        join("src", "multiarray", "abstractdtypes.c"),
        join("src", "multiarray", "alloc.c"),
        join("src", "multiarray", "arrayobject.c"),
        join("src", "multiarray", "arraytypes.c.src"),
        join("src", "multiarray", "array_coercion.c"),
        join("src", "multiarray", "array_method.c"),
        join("src", "multiarray", "array_assign_scalar.c"),
        join("src", "multiarray", "array_assign_array.c"),
        join("src", "multiarray", "arrayfunction_override.c"),
        join("src", "multiarray", "buffer.c"),
        join("src", "multiarray", "calculation.c"),
        join("src", "multiarray", "compiled_base.c"),
        join("src", "multiarray", "common.c"),
        join("src", "multiarray", "convert.c"),
        join("src", "multiarray", "convert_datatype.c"),
        join("src", "multiarray", "conversion_utils.c"),
        join("src", "multiarray", "ctors.c"),
        join("src", "multiarray", "datetime.c"),
        join("src", "multiarray", "datetime_strings.c"),
        join("src", "multiarray", "datetime_busday.c"),
        join("src", "multiarray", "datetime_busdaycal.c"),
        join("src", "multiarray", "descriptor.c"),
        join("src", "multiarray", "dtypemeta.c"),
        join("src", "multiarray", "dragon4.c"),
        join("src", "multiarray", "dtype_transfer.c"),
        join("src", "multiarray", "einsum.c.src"),
        join("src", "multiarray", "einsum_sumprod.c.src"),
        join("src", "multiarray", "flagsobject.c"),
        join("src", "multiarray", "getset.c"),
        join("src", "multiarray", "hashdescr.c"),
        join("src", "multiarray", "item_selection.c"),
        join("src", "multiarray", "iterators.c"),
        join("src", "multiarray", "legacy_dtype_implementation.c"),
        join("src", "multiarray", "lowlevel_strided_loops.c.src"),
        join("src", "multiarray", "mapping.c"),
        join("src", "multiarray", "methods.c"),
        join("src", "multiarray", "multiarraymodule.c"),
        join("src", "multiarray", "nditer_templ.c.src"),
        join("src", "multiarray", "nditer_api.c"),
        join("src", "multiarray", "nditer_constr.c"),
        join("src", "multiarray", "nditer_pywrap.c"),
        join("src", "multiarray", "number.c"),
        join("src", "multiarray", "refcount.c"),
        join("src", "multiarray", "sequence.c"),
        join("src", "multiarray", "shape.c"),
        join("src", "multiarray", "scalarapi.c"),
        join("src", "multiarray", "scalartypes.c.src"),
        join("src", "multiarray", "strfuncs.c"),
        join("src", "multiarray", "temp_elide.c"),
        join("src", "multiarray", "typeinfo.c"),
        join("src", "multiarray", "usertypes.c"),
        join("src", "multiarray", "vdot.c"),
        join("src", "common", "npy_sort.h.src"),
        join("src", "npysort", "quicksort.c.src"),
        join("src", "npysort", "mergesort.c.src"),
        join("src", "npysort", "timsort.c.src"),
        join("src", "npysort", "heapsort.c.src"),
        join("src", "npysort", "radixsort.c.src"),
        join("src", "common", "npy_partition.h.src"),
        join("src", "npysort", "selection.c.src"),
        join("src", "common", "npy_binsearch.h.src"),
        join("src", "npysort", "binsearch.c.src"),
    ]

    #######################################################################
    #             _multiarray_umath module - umath part                   #
    #######################################################################

    def generate_umath_c(ext, build_dir):
        target = join(build_dir, header_dir, "__umath_generated.c")
        dir = os.path.dirname(target)
        if not os.path.exists(dir):
            os.makedirs(dir)
        script = generate_umath_py
        if newer(script, target):
            with open(target, "w") as f:
                f.write(
                    generate_umath.make_code(generate_umath.defdict,
                                             generate_umath.__file__))
        return []

    umath_src = [
        join("src", "umath", "umathmodule.c"),
        join("src", "umath", "reduction.c"),
        join("src", "umath", "funcs.inc.src"),
        join("src", "umath", "simd.inc.src"),
        join("src", "umath", "loops.h.src"),
        join("src", "umath", "loops.c.src"),
        join("src", "umath", "loops_unary_fp.dispatch.c.src"),
        join("src", "umath", "matmul.h.src"),
        join("src", "umath", "matmul.c.src"),
        join("src", "umath", "clip.h.src"),
        join("src", "umath", "clip.c.src"),
        join("src", "umath", "ufunc_object.c"),
        join("src", "umath", "extobj.c"),
        join("src", "umath", "scalarmath.c.src"),
        join("src", "umath", "ufunc_type_resolution.c"),
        join("src", "umath", "override.c"),
    ]

    umath_deps = [
        generate_umath_py,
        join("include", "numpy", "npy_math.h"),
        join("include", "numpy", "halffloat.h"),
        join("src", "multiarray", "common.h"),
        join("src", "multiarray", "number.h"),
        join("src", "common", "templ_common.h.src"),
        join("src", "umath", "simd.inc.src"),
        join("src", "umath", "override.h"),
        join(codegen_dir, "generate_ufunc_api.py"),
    ]

    config.add_extension(
        "_multiarray_umath",
        sources=multiarray_src + umath_src + common_src + [
            generate_config_h,
            generate_numpyconfig_h,
            generate_numpy_api,
            join(codegen_dir, "generate_numpy_api.py"),
            join("*.py"),
            generate_umath_c,
            generate_ufunc_api,
        ],
        depends=deps + multiarray_deps + umath_deps + common_deps,
        libraries=["npymath"],
        extra_info=extra_info,
    )

    #######################################################################
    #                        umath_tests module                           #
    #######################################################################

    config.add_extension(
        "_umath_tests",
        sources=[
            join("src", "umath", "_umath_tests.c.src"),
            join("src", "umath", "_umath_tests.dispatch.c"),
            join("src", "common", "npy_cpu_features.c.src"),
        ],
    )

    #######################################################################
    #                   custom rational dtype module                      #
    #######################################################################

    config.add_extension(
        "_rational_tests",
        sources=[join("src", "umath", "_rational_tests.c.src")])

    #######################################################################
    #                        struct_ufunc_test module                     #
    #######################################################################

    config.add_extension(
        "_struct_ufunc_tests",
        sources=[join("src", "umath", "_struct_ufunc_tests.c.src")],
    )

    #######################################################################
    #                        operand_flag_tests module                    #
    #######################################################################

    config.add_extension(
        "_operand_flag_tests",
        sources=[join("src", "umath", "_operand_flag_tests.c.src")],
    )

    #######################################################################
    #                        SIMD module                                  #
    #######################################################################

    config.add_extension(
        "_simd",
        sources=[
            join("src", "common", "npy_cpu_features.c.src"),
            join("src", "_simd", "_simd.c"),
            join("src", "_simd", "_simd_inc.h.src"),
            join("src", "_simd", "_simd_data.inc.src"),
            join("src", "_simd", "_simd.dispatch.c.src"),
        ],
        depends=[
            join("src", "common", "npy_cpu_dispatch.h"),
            join("src", "common", "simd", "simd.h"),
            join("src", "_simd", "_simd.h"),
            join("src", "_simd", "_simd_inc.h.src"),
            join("src", "_simd", "_simd_data.inc.src"),
            join("src", "_simd", "_simd_arg.inc"),
            join("src", "_simd", "_simd_convert.inc"),
            join("src", "_simd", "_simd_easyintrin.inc"),
            join("src", "_simd", "_simd_vector.inc"),
        ],
    )

    config.add_subpackage("tests")
    config.add_data_dir("tests/data")
    config.add_data_dir("tests/examples")
    config.add_data_files("*.pyi")

    config.make_svn_version_py()

    return config