debdiff attached for Jammy.
** Changed in: qtcreator (Ubuntu)
Status: New => Fix Released
** Changed in: qtcreator (Ubuntu Focal)
Status: New => In Progress
** Changed in: qtcreator (Ubuntu Focal)
Assignee: (unassigned) => Sudip Mukherjee (sudipmuk)
** Changed in: qtcreator (Ubuntu Jammy)
Status: New => Confirmed
** Summary changed:
- Missing dependency in libqt5gstreamer-dev
+ [SRU] Missing dependency in libqt5gstreamer-dev
** Description changed:
+ [ Impact ]
+
+ The package libqt5gstreamer-dev is mostly unusable for users whose
development environment uses pkg-config to find dependencies.
+ If we use pkg-config to find the CFLAGS that are needed to link with
libQt5GStreamer-1.0.so then that will fail.
+
+ An example command:
+
+ # pkg-config --cflags Qt5GStreamer-1.0
+ Package gobject-2.0 was not found in the pkg-config search path.
+ Perhaps you should add the directory containing `gobject-2.0.pc'
+ to the PKG_CONFIG_PATH environment variable
+ Package 'gobject-2.0', required by 'Qt5GLib-2.0', not found
+
+ [ Test Plan ]
+
+ * Execute the command "pkg-config --cflags Qt5GStreamer-1.0" and cofirm
+ that pkg-config can find the CFLAGS needed to link with
+ libQt5GStreamer-1.0.so
+
+ [ Where problems could occur ]
+
+ * The dependency fix alone should not cause any problem as its not
+ changing any part of the code. But another fix from Debian had to be
+ added, as without that fix the package is failing to build in Jammy.
+ And, this patch is removing a volatile qualifier from a variable. But
+ this patch is in Debian since Sept, 2022 without any report of
+ regression so I will assume there is little chance of regression on
+ adding it here in Jammy.
+
+ [ Other Info ]
+
+ * the package mentioned in the bug is wrong, it affects qt-gstreamer source.
+
+ * as mentioned above an extra Debian patch is needed. Without that patch the
build fails in Jammy with the error:
+
+ /<<PKGBUILDDIR>>/elements/gstqtvideosink/gstqwidgetvideosink.cpp: In static
member function ‘static GType GstQWidgetVideoSink::get_type()’:
+ /usr/include/glib-2.0/glib/gatomic.h:113:19: error: argument 2 of
‘__atomic_load’ must not be a pointer to a ‘volatile’ type
+ 113 | __atomic_load (gapg_temp_atomic, &gapg_temp_newval,
__ATOMIC_SEQ_CST); \
+ |
~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ /usr/include/glib-2.0/glib/gthread.h:260:7: note: in expansion of macro
‘g_atomic_pointer_get’
+ 260 | (!g_atomic_pointer_get (location) && \
+ | ^~~~~~~~~~~~~~~~~~~~
+ /<<PKGBUILDDIR>>/elements/gstqtvideosink/gstqtvideosinkplugin.h:31:13: note:
in expansion of macro ‘g_once_init_enter’
+ 31 | if (g_once_init_enter(&gonce_data)) { \
+ | ^~~~~~~~~~~~~~~~~
+ /<<PKGBUILDDIR>>/elements/gstqtvideosink/gstqtvideosinkplugin.h:56:5: note:
in expansion of macro ‘DEFINE_TYPE_FULL’
+ 56 | DEFINE_TYPE_FULL(cpp_type, #cpp_type "_qt5", parent_type,
Q_UNUSED)
+ | ^~~~~~~~~~~~~~~~
+ /<<PKGBUILDDIR>>/elements/gstqtvideosink/gstqwidgetvideosink.cpp:22:1: note:
in expansion of macro ‘DEFINE_TYPE’
+ 22 | DEFINE_TYPE(GstQWidgetVideoSink, GST_TYPE_QT_VIDEO_SINK_BASE)
+ | ^~~~~~~~~~~
+ make[4]: ***
[elements/gstqtvideosink/CMakeFiles/gstqt5videosink.dir/build.make:227:
elements/gstqtvideosink/CMakeFiles/gstqt5videosink.dir/gstqwidgetvideosink.cpp.o]
Error 1
+
+
+ * The problem has been fixed in Debian with qt-gstreamer_1.2.0-5.2, so Lunar,
Mantic and Noble are not affected. Only Jammy and Focal are affected.
+
+ [ Original Bug Description ]
+
After installing libqt5gstreamer-dev, the following command fails:
pkg-config --exists Qt5GStreamer-1.0 || echo "Failed"
Failed
more info:
pkg-config --cflags Qt5GStreamer-1.0
Package gstreamer-1.0 was not found in the pkg-config search path.
Perhaps you should add the directory containing `gstreamer-1.0.pc'
to the PKG_CONFIG_PATH environment variable
Package 'gstreamer-1.0', required by 'Qt5GStreamer-1.0', not found
After installing libgstreamer-plugins-base1.0-dev (also brings the
missing libgstreamer1.0-dev), it works.
* Ubuntu 20.04.3 LTS
* libqt5gstreamer-dev (1.2.0-5)
* amd64
** Tags added: focal jammy
** Patch added: "qt-gstreamer_jammy.debdiff"
https://bugs.launchpad.net/ubuntu/+source/qtcreator/+bug/1950959/+attachment/5730779/+files/qt-gstreamer_jammy.debdiff
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https://bugs.launchpad.net/bugs/1950959
Title:
[SRU] Missing dependency in libqt5gstreamer-dev
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