[Bug 1970983] Re: failed to build against linux-unstable=5.18.0-1.1: CONFIG_VIDEO_V4L2 obsoleted

[Launchpad Bug Tracker]

This bug was fixed in the package v4l2loopback - 0.12.7-2ubuntu2~22.04.1

---------------
v4l2loopback (0.12.7-2ubuntu2~22.04.1) jammy; urgency=medium

  * Backport dkms support for HWE kernels. LP: #1999670

v4l2loopback (0.12.7-2ubuntu2) kinetic; urgency=medium

  * Preserve CC setting when invoking sub-make, to ensure module can be
    built correctly with the kernel's custom compiler. Fixes FTBFS in
    hwe-5.19 build. LP: #1991664

v4l2loopback (0.12.7-2ubuntu1) kinetic; urgency=medium

  * Merge from Debian, remaining changes:
    - drop module-assistant autopkgtest
    - add Ubuntu patch track active-readers
    - add Ubuntu patch implement support for V4L2_EVENT_PRI_CLIENT_USAGE

v4l2loopback (0.12.7-2) unstable; urgency=medium

  * Fix DKMS build on linux>=5.18

v4l2loopback (0.12.7-1) unstable; urgency=medium

  * New upstream version 0.12.7

  [ Andreas Beckmann ]
  * Switch to dh-sequence-dkms.
  * Switch to Testsuite: autopkgtest-pkg-dkms.

  [ Debian Janitor ]
  * Set upstream metadata fields: Bug-Database, Bug-Submit, Repository,
    Repository-Browse.
  * Remove constraints unnecessary since buster

  [ IOhannes m zmölnig ]
  * Drop patches applied upstream
  * Drop unnecessary B-Ds
  * Bump dh-compat to 13
  * Bump standards version to 4.6.1

v4l2loopback (0.12.5-1ubuntu7) kinetic; urgency=medium

  * Drop obsolte REMAKE_INITRD option from dkms.conf.
  * Update module init & exit calls to use kernel provided macros, such
    that they gain correct IBT attributes. LP: #1980484

v4l2loopback (0.12.5-1ubuntu6) kinetic; urgency=low

  * Check CONFIG_VIDEO_DEV against kernel version >= 5.18. (LP:
#1970983)

 -- Dimitri John Ledkov <dimitri.ledkov at canonical.com>  Mon, 16 Jan 2023
11:22:08 +0000

** Changed in: v4l2loopback (Ubuntu Jammy)
       Status: Fix Committed => Fix Released

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Title:
  failed to build against linux-unstable=5.18.0-1.1: CONFIG_VIDEO_V4L2
  obsoleted

Status in v4l2loopback package in Ubuntu:
  Fix Released
Status in v4l2loopback source package in Jammy:
  Fix Released
Status in v4l2loopback source package in Kinetic:
  Fix Released

Bug description:
  In commit 9958d30f38b9 ("media: Kconfig: cleanup VIDEO_DEV
  dependencies"), VIDEO_V4L2 is now obsoleted and VIDEO_DEV should be
  used instead. This fails the added grep statement in bug 1964484
  evaluates to empty as always, and BUILD_EXCLUSIVE_KERNEL is therefore
  always set on those should not. The error messages will be like:

  II: dkms-build building v4l2loopback
  Creating symlink /tmp/kernel-vicamo-ce1c8356cf164-8jMF/build/debian/build/build-generic/_________________________dkms/build/v4l2loopback/0.12.5/source -> /tmp/kernel-vicamo-ce1c8356cf164-8jMF/build/debian/build/build-generic/_________________________dkms/source/v4l2loopback-0.12.5
  Error! The /tmp/kernel-vicamo-ce1c8356cf164-8jMF/build/debian/build/build-generic/_________________________dkms/build/v4l2loopback/0.12.5/5.18.0-2001-generic/x86_64/dkms.conf for module v4l2loopback includes a BUILD_EXCLUSIVE directive which does not match this kernel/arch.
  This indicates that it should not be built.
  debian/scripts/dkms-build: line 176: /tmp/kernel-vicamo-ce1c8356cf164-8jMF/build/debian/build/build-generic/_________________________dkms/build/v4l2loopback/0.12.5/build/make.log: No such file or directory
  make: *** [debian/rules.d/2-binary-arch.mk:235: /tmp/kernel-vicamo-ce1c8356cf164-8jMF/build/debian/stamps/stamp-install-generic] Error 1

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