author Makoto Kato <>
Tue, 27 Sep 2016 19:16:03 +0900
changeset 315706 c419c4807be68a9dab3f781908cbd9b68f9bdea6
parent 314755 cddf2e43ee9f5e047573c92e101a333948fe5705
permissions -rw-r--r--
Bug 1305677 - Remove requirement of libffi on aarch64 as default. r=chmanchester To support android/aarch64, I want to remove the requirement of system's libffi. MozReview-Commit-ID: Lc3POx09Cks

# -*- Mode: python; indent-tabs-mode: nil; tab-width: 40 -*-
# vim: set filetype=python:
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at

def force_system_ffi(target):
    # Pre-emptively move to system ffi for non-tier one platforms.
    if target.cpu not in ('x86', 'x86_64', 'arm', 'aarch64'):
        return True

imply_option('--with-system-ffi', force_system_ffi, "target")

          help='Use system libffi (located with pkgconfig)')

use_system_ffi = depends_if('--with-system-ffi')(lambda _: True)

system_ffi = pkg_check_modules('MOZ_FFI', 'libffi > 3.0.9',

building_ffi = depends(system_ffi)(lambda v: not bool(v))

set_config('MOZ_SYSTEM_FFI', system_ffi)
add_old_configure_assignment('MOZ_SYSTEM_FFI', system_ffi)

# Target selection, based on ffi/
@depends_when(target, when=building_ffi)
def ffi_target(target):
    if target.cpu not in ('x86', 'x86_64', 'arm', 'aarch64'):
        die('Building libffi from the tree is not supported on this platform. '
            'Use --with-system-ffi instead.')

    if target.os == 'WINNT':
        target_dir = 'x86'
        if target.cpu == 'x86_64':
            target_name = 'X86_WIN64'
            target_name = 'X86_WIN32'
    elif target.os == 'OSX':
        target_dir = 'x86'
        target_name = 'X86_DARWIN'
    elif target.cpu == 'arm':
        target_dir = 'arm'
        target_name = 'ARM'
    elif target.cpu == 'aarch64':
        target_dir = 'aarch64'
        target_name = 'AARCH64'
        target_dir = 'x86'
        target_name = target.cpu.upper()

    return namespace(

set_config('FFI_TARGET', delayed_getattr(ffi_target, 'name'))
set_config('FFI_TARGET_DIR', delayed_getattr(ffi_target, 'dir'))