Function generate_numpyconfig_h

numpy/core/setup.py:549–614

Depends on config.h: generate_config_h has to be called before !

(ext, build_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_complex(config_cmd, mathlibs)[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
                    """))