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gnu: python-gst: Fix build with Python 3.8.

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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.
This commit is contained in:
Christopher Baines 2020-05-02 12:00:11 +01:00
parent 48a168ff97
commit 20d7dbc77a
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3 changed files with 40 additions and 1 deletions
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1
gnu/local.mk
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@ -1394,6 +1394,7 @@ dist_patch_DATA = \
%D%/packages/patches/python2-larch-coverage-4.0a6-compatibility.patch \
%D%/packages/patches/python-configobj-setuptools.patch \
%D%/packages/patches/python-flask-restful-werkzeug-compat.patch \
%D%/packages/patches/python-gst-fix-build-with-python-3.8.patch \
%D%/packages/patches/python-keras-integration-test.patch \
%D%/packages/patches/python-pep8-stdlib-tokenize-compat.patch \
%D%/packages/patches/python-pyfakefs-remove-bad-test.patch \

4
gnu/packages/gstreamer.scm
View file

@ -521,7 +521,9 @@ (define-public python-gst
"gst-python-" version ".tar.xz"))
(sha256
(base32
"1a48ca66izmm8hnp608jv5isg3jxb0vlfmhns0bg9nbkilag7390"))))
"1a48ca66izmm8hnp608jv5isg3jxb0vlfmhns0bg9nbkilag7390"))
(patches
(search-patches "python-gst-fix-build-with-python-3.8.patch"))))
(build-system meson-build-system)
(arguments
`(#:modules ((guix build meson-build-system)

36
gnu/packages/patches/python-gst-fix-build-with-python-3.8.patch Normal file
View file

@ -0,0 +1,36 @@
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
diff --git a/meson.build b/meson.build
index 5f13b48..d7c7e66 100644
--- a/meson.build
+++ b/meson.build
@@ -23,7 +23,17 @@ pygobject_dep = dependency('pygobject-3.0', fallback: ['pygobject', 'pygobject_d
pymod = import('python')
python = pymod.find_installation(get_option('python'))
-python_dep = python.dependency(required : true)
+pythonver = python.language_version()
+if pythonver.version_compare('<3.0')
+ error('Python2 is not supported anymore, please port your code to python3 (@0@ specified)'.format(python.language_version()))
+endif
+
+# Workaround for https://github.com/mesonbuild/meson/issues/5629
+# https://gitlab.freedesktop.org/gstreamer/gst-python/issues/28
+python_dep = dependency('python-@0@-embed'.format(pythonver), version: '>=3', required: false)
+if not python_dep.found()
+ python_dep = python.dependency(required : true)
+endif
python_abi_flags = python.get_variable('ABIFLAGS', '')
pylib_loc = get_option('libpython-dir')
--
2.26.2