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-rw-r--r--gnu/packages/gstreamer.scm4
-rw-r--r--gnu/packages/patches/python-gst-fix-build-with-python-3.8.patch36
2 files changed, 39 insertions, 1 deletions
diff --git a/gnu/packages/gstreamer.scm b/gnu/packages/gstreamer.scm
index 93149e370e..7596796d68 100644
--- a/gnu/packages/gstreamer.scm
+++ b/gnu/packages/gstreamer.scm
@@ -521,7 +521,9 @@ non-linear editors.")
"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)
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..affa0e1317
--- /dev/null
+++ b/gnu/packages/patches/python-gst-fix-build-with-python-3.8.patch
@@ -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