[bug#41022] [PATCH core-updates] gnu: python-gst: Fix build with Python 3.8.

[Christopher Baines <mail@cbaines.net>]

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Marius Bakke <mbakke@fastmail.com> writes:

> Christopher Baines <mail@cbaines.net> writes:
>
>> Add a patch based on an upstream commit [1].
>>
>> 1: 10707f437f2fc3632067c6a0efa4432f7ebaf362
>>
>> * gnu/packages/patches/python-gst-fix-build-with-python-3.8.patch: New file.
>> * gnu/local.mk (dist_patch_DATA): Add it.
>> * gnu/packages/gstreamer.scm (python-gst)[source]: Use the patch.
>
> [...]
>
>> diff --git a/gnu/packages/patches/python-gst-fix-build-with-python-3.8.patch b/gnu/packages/patches/python-gst-fix-build-with-python-3.8.patch
>> new file mode 100644
>> index 0000000000..49f41e0c03
>> --- /dev/null
>> +++ b/gnu/packages/patches/python-gst-fix-build-with-python-3.8.patch
>> @@ -0,0 +1,41 @@
>> +From 10707f437f2fc3632067c6a0efa4432f7ebaf362 Mon Sep 17 00:00:00 2001
>> +From: =?UTF-8?q?Sebastian=20Dr=C3=B6ge?= <sebastian@centricular.com>
>> +Date: Fri, 13 Dec 2019 10:46:20 +0200
>> +Subject: [PATCH] Fix build with Python 3.8 by also checking for
>> + python-3.X-embed.pc
>> +
>> +Since Python 3.8 the normal checks don't include the Python libraries
>> +anymore and linking of the gst-python module would fail.
>> +
>> +See also https://github.com/mesonbuild/meson/issues/5629
>> +
>> +Fixes https://gitlab.freedesktop.org/gstreamer/gst-python/issues/28
>> +---
>> + meson.build | 11 +++++++++--
>> + 1 file changed, 9 insertions(+), 2 deletions(-)
>
> Instead of the git patch format, can you add a short comment at the top
> along with links to the upstream commit and issue like we usually do?

I usually avoid messing with patches, they're often uncooperative. Would
something I this do?


Fix build with Python 3.8 by also checking for python-3.X-embed.pc. Since
Python 3.8 the normal checks don't include the Python libraries anymore and
linking of the gst-python module would fail.

See also https://github.com/mesonbuild/meson/issues/5629
Fixes https://gitlab.freedesktop.org/gstreamer/gst-python/issues/28

Patch based on upstream commit:

https://gitlab.freedesktop.org/gstreamer/gst-python/-/commit/10707f437f2fc3632067c6a0efa4432f7ebaf362

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