Remove bundled libffi

[zware]

BPO	27979
Nosy	@zware, @yan12125
PRs	[Do Not Merge] Convert Misc/NEWS so that it is managed by towncrier #552
Dependencies	bpo-27976: Deprecate building with bundled copy of libffi on non-Darwin POSIX platforms
Files	remove_bundled_libffi.diff

^{Note: these values reflect the state of the issue at the time it was migrated and might not reflect the current state.}

Show more details

GitHub fields:

assignee = None
closed_at = <Date 2016-09-17.06:37:25.664>
created_at = <Date 2016-09-06.18:53:39.053>
labels = ['ctypes', 'type-feature', '3.7', 'build']
title = 'Remove bundled libffi'
updated_at = <Date 2017-03-31.16:36:21.242>
user = 'https://github.com/zware'

bugs.python.org fields:

activity = <Date 2017-03-31.16:36:21.242>
actor = 'dstufft'
assignee = 'none'
closed = True
closed_date = <Date 2016-09-17.06:37:25.664>
closer = 'python-dev'
components = ['Build', 'ctypes']
creation = <Date 2016-09-06.18:53:39.053>
creator = 'zach.ware'
dependencies = ['27976']
files = ['44400']
hgrepos = []
issue_num = 27979
keywords = ['patch']
message_count = 4.0
messages = ['274600', '274927', '276773', '277298']
nosy_count = 3.0
nosy_names = ['python-dev', 'zach.ware', 'yan12125']
pr_nums = ['552']
priority = 'normal'
resolution = 'fixed'
stage = 'resolved'
status = 'closed'
superseder = None
type = 'enhancement'
url = 'https://bugs.python.org/issue27979'
versions = ['Python 3.7']

[zware]

The attached patch allows the bundled libffi used in non-Darwin POSIX builds (Modules/_ctypes/libffi, along with Modules/_ctypes/libffi.diff) to be removed. It depends on the patch in bpo-27976, and does not affect OSX or Windows.

[zware]

The patch will need to be updated to just completely remove the --with(out)-system-ffi check everywhere but OSX. It will also need to make some changes after the latest patch in bpo-27976.

[python-dev]

New changeset d4981c76a8b9 by Zachary Ware in branch 'default':
Closes bpo-27979: Remove bundled copy of libffi
https://hg.python.org/cpython/rev/d4981c76a8b9

[yan12125]

https://docs.python.org/3/license.html#libffi may need a change, too.