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[Stefan Bader <2119318@xxxxxxxxxxxxxxxxxx>]

It looks like the correct path will be assumed by libbpf-tools/Makefile
and I was able to successfully build by removing the following line from
debian/rules:

-export BPFTOOL=$(shell ls -1 /usr/lib/linux-tools-*/bpftool | tail -n
1)

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https://bugs.launchpad.net/bugs/2119318

Title:
  bpfcc/0.30.0+ds-1ubuntu5 ADT test failure with linux/6.14.0-28.28

Status in bpfcc package in Ubuntu:
  Triaged
Status in linux package in Ubuntu:
  Invalid

Bug description:
  The testing of bpfcc started to fail with 6.14.0-17.17 with the
  version of bpfcc unchanged. With that version the rebuild logs show a
  failure to find the bpftool:

  158s dh clean --buildsystem=cmake --with pkgkde_symbolshelper,python3
  158s ls: cannot access '/usr/lib/linux-tools-*/bpftool': No such file or directory

  Initially I could not explain why since nothing related to the bpftool
  had changed between -15.15 and -17.17. The bpftool binary was never
  located in /usr/lib in both cases. For 6.14 it is provided by its own
  package "bpftool" and is in /usr/sbin.

  I finally spotted that possibly between those two kernel versions the
  base images for ADT testing were re-created and that removed cruft
  from interim kernel versions:

  1076s /usr/lib/linux-tools-6.12.0-16/bpftool gen skeleton
  /tmp/autopkgtest.OCpuqg/build.PP1/src/libbpf-
  tools/.output/bashreadline.bpf.o >
  /tmp/autopkgtest.OCpuqg/build.PP1/src/libbpf-
  tools/.output/bashreadline.skel.h

  Note the path containing "linux-tools-6.12.0-16". The must have been
  before the conversion and no longer will exist.


  Testing failed on:
      amd64: https://autopkgtest.ubuntu.com/results/autopkgtest-plucky/plucky/amd64/b/bpfcc/20250724_184800_d8c81@/log.gz

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