## -*- Mode: python; py-indent-offset: 4; indent-tabs-mode: nil; coding: utf-8; -*-

import os.path

def configure(conf):

    if conf.env['ENABLE_THREADING']:

        conf.env['ENABLE_TAP'] = conf.check_nonfatal(header_name='linux/if_tun.h',

                                            define_name='HAVE_IF_TUN_H')

        conf.report_optional_feature("TapBridge", "Tap Bridge",

                                     conf.env['ENABLE_TAP'],

                                     "<linux/if_tun.h> include not detected")

    else:

        conf.report_optional_feature("TapBridge", "Tap Bridge",

                                     False,

                                     "needs threading support which is not available")

    if conf.env['ENABLE_TAP']:

        blddir = os.path.abspath(os.path.join(conf.bldnode.abspath(), conf.variant))

        tapcreatordir = os.path.abspath(os.path.join(blddir, "src/tap-bridge"))

        conf.env.append_value('NS3_EXECUTABLE_PATH', tapcreatordir)

    else:

        # Add this module to the list of modules that won't be built

        # if they are enabled.

        conf.env['MODULES_NOT_BUILT'].append('tap-bridge')

def build(bld):

    # Don't do anything for this module if tap-bridge's not enabled.

    if not bld.env['ENABLE_TAP']:

        return

    module = bld.create_ns3_module('tap-bridge', ['internet', 'network', 'core'])

    module.source = [

        'model/tap-bridge.cc',

        'model/tap-encode-decode.cc',

        'helper/tap-bridge-helper.cc',

        ]

    headers = bld(features='ns3header')

    headers.module = 'tap-bridge'

    headers.source = [

        'model/tap-bridge.h',

        'helper/tap-bridge-helper.h',

        'doc/tap.h',

        ]

    if not bld.env['PLATFORM'].startswith('freebsd'):

        tap_creator = bld.create_suid_program('tap-creator')

        tap_creator.source = [

            'model/tap-creator.cc',

            'model/tap-encode-decode.cc',

            ]

    module.env.append_value("DEFINES", "TAP_CREATOR=\"%s\"" % (tap_creator.target,))

    if bld.env['ENABLE_EXAMPLES']:

        bld.recurse('examples')

    bld.ns3_python_bindings()