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Title: socket.TCP_* no longer available with cygwin 3.1.6+
Type: compile error Stage: resolved
Components: Build Versions: Python 3.11
process
Status: closed Resolution: fixed
Dependencies: Superseder:
Assigned To: Nosy List: ZackerySpytz, erik.bray, iritkatriel, lazka, matzeri
Priority: normal Keywords: patch

Created on 2020年07月23日 07:51 by lazka, last changed 2022年04月11日 14:59 by admin. This issue is now closed.

Files
File name Uploaded Description Edit
3.6.12-socketmodule.patch matzeri, 2021年01月02日 23:24 Patch used on Cygwin packages
Pull Requests
URL Status Linked Edit
PR 21649 merged ZackerySpytz, 2020年07月28日 01:23
Messages (4)
msg374126 - (view) Author: Christoph Reiter (lazka) * Date: 2020年07月23日 07:51
The TCP macros are provided by netinet/tcp.h, which for some reason is skipped here: https://github.com/python/cpython/blob/592527f3ee59616eca2bd1da771f7c14cee808d5/Modules/socketmodule.h#L11
Until cygwin 3.1.6 these macros were also provided by sys/socket.h, but this got removed in https://cygwin.com/git/?p=newlib-cygwin.git;a=commit;h=e037192b505b4f233fca9a6deafc9797210f6693
This leads to socket.TCP_NODELAY for example not being available anymore.
git blame leads me to https://github.com/python/cpython/commit/b5daaed30d7c54ba1f516289f3a7a30a864133af introducing this special case, which isn't very helpful. I'd suggest to just remove the cygwin check and always include it (which works fine on my machine)
Downstream bug report for extra context: https://github.com/msys2/MSYS2-packages/issues/2050 
msg384245 - (view) Author: Marco Atzeri (matzeri) Date: 2021年01月02日 23:24
The Analysis is correct. 
Removing the test for CYGWIN and always include the 
<netinet/tcp.h>
solved the problem building all python (3.6,3.7,3.8) packages
https://sourceware.org/pipermail/cygwin-apps/2020-December/040845.html
https://sourceware.org/pipermail/cygwin-announce/2020-December/009853.html
attached patch used on the build.
Similar one was applied to the rebuild of 2.7.18
msg386918 - (view) Author: Christoph Reiter (lazka) * Date: 2021年02月13日 09:12
ping. The PR looks good to me.
msg404501 - (view) Author: Irit Katriel (iritkatriel) * (Python committer) Date: 2021年10月20日 17:15
New changeset d8e181925123ab1fd3dfcad3b29325b2b0ff704b by Zackery Spytz in branch 'main':
bpo-41374: Remove obsolete exclusion of netinet/tcp.h on Cygwin (GH-21649)
https://github.com/python/cpython/commit/d8e181925123ab1fd3dfcad3b29325b2b0ff704b
History
Date User Action Args
2022年04月11日 14:59:34adminsetgithub: 85546
2021年10月20日 17:15:24iritkatrielsetversions: + Python 3.11, - Python 3.6, Python 3.7, Python 3.8
2021年10月20日 17:15:19iritkatrielsetstatus: open -> closed
superseder: Cygwin is unsupported - close all open issues and list them here. ->
resolution: duplicate -> fixed
2021年10月20日 17:15:07iritkatrielsetnosy: + iritkatriel
messages: + msg404501
2021年10月20日 16:32:36iritkatrielsetstatus: closed -> open
2021年10月20日 12:12:28iritkatrielsetstatus: open -> closed
superseder: Cygwin is unsupported - close all open issues and list them here.
resolution: duplicate
stage: patch review -> resolved
2021年02月13日 09:12:29lazkasetmessages: + msg386918
2021年01月02日 23:24:50matzerisetfiles: + 3.6.12-socketmodule.patch
versions: + Python 3.6, Python 3.7
nosy: + matzeri

messages: + msg384245
2020年07月28日 01:23:43ZackerySpytzsetkeywords: + patch
nosy: + ZackerySpytz

pull_requests: + pull_request20789
stage: patch review
2020年07月23日 18:21:25lazkasetnosy: + erik.bray
2020年07月23日 07:51:44lazkacreate

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