the ipv6type variable in configure.ac may be set incorrectly when cross-compiling

[xdegaye]

BPO	36351
Nosy	@moreati, @ZackerySpytz
PRs	bpo-36351: Do not set ipv6type in configure.ac when cross-compiling #12416 gh-80532: Do not set ipv6type when cross-compiling #17956

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

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GitHub fields:

assignee = None
closed_at = None
created_at = <Date 2019-03-18.16:10:33.242>
labels = ['type-bug', '3.9', 'build']
title = 'the ipv6type variable in configure.ac may be set incorrectly when cross-compiling'
updated_at = <Date 2020-01-12.06:52:37.790>
user = 'https://github.com/xdegaye'

bugs.python.org fields:

activity = <Date 2020-01-12.06:52:37.790>
actor = 'ZackerySpytz'
assignee = 'none'
closed = False
closed_date = None
closer = None
components = ['Cross-Build']
creation = <Date 2019-03-18.16:10:33.242>
creator = 'xdegaye'
dependencies = []
files = []
hgrepos = []
issue_num = 36351
keywords = ['patch']
message_count = 1.0
messages = ['338250']
nosy_count = 2.0
nosy_names = ['Alex.Willmer', 'ZackerySpytz']
pr_nums = ['12416', '17956']
priority = 'normal'
resolution = None
stage = 'patch review'
status = 'open'
superseder = None
type = 'behavior'
url = 'https://bugs.python.org/issue36351'
versions = ['Python 3.9']

Linked PRs

• [3.12] gh-80532: Do not set ipv6type when cross-compiling (GH-17956) #113740
• [3.11] gh-80532: Do not set ipv6type when cross-compiling (GH-17956) #113741

[xdegaye]

The tests that set the 'ipv6type' variable in configure.ac check the local file system and this may give incorrect values when cross-compiling. For example the /etc/netconfig file exists on Archlinux, and configure sets ipv6type=solaris when cross-compiling Android on this platform.

[erlend-aasland]

Resolved with:

• gh-80532: Do not set ipv6type when cross-compiling #17956

Backports scheduled:

• [3.12] gh-80532: Do not set ipv6type when cross-compiling (GH-17956) #113740
• [3.11] gh-80532: Do not set ipv6type when cross-compiling (GH-17956) #113741