[Git][lintian/lintian][master] Remove library-not-linked-against-libc check

Louis-Philippe Véronneau pushed to branch master at lintian / lintian

Commits:

02ee7f48

by Jeremy Bícha at 2025-12-07T23:54:31-05:00

Remove library-not-linked-against-libc check

This check made assumptions that are no longer true.

-Wl,--as-needed is set by default since Debian 11
which results in many library files (particularly plugins)
not linking directly against libc.

Ubuntu enables LTO optimization by default and many
Debian packages opt in to that, which also
can trigger this Lintian check. This was seen
with evolution-data-server 3.56.2-5.

Further, the default Salsa CI pipeline fails for
any Lintian error, so we should be cautious
about having Lintian errors.

https://udd.debian.org/lintian-tag/library-not-linked-against-libc?affected=yes
reports that this is emitted 5000 times before getting past the openkim-models
package in an alphabetical list

Closes: #896012
Closes: #909267

3 changed files:

lib/Lintian/Check/Binaries/Prerequisites.pm
t/recipes/checks/binaries/prerequisites/binaries-libc-link/eval/hints
− tags/l/library-not-linked-against-libc.tag

Changes:

lib/Lintian/Check/Binaries/Prerequisites.pm

@@ -120,15 +120,6 @@ sub visit_installed_files {
      my $linked_with_libc
        = any { m{^ libc[.]so[.] }x } @{$item->elf->{NEEDED} // []};
 -    $self->pointed_hint('library-not-linked-against-libc', $item->pointer)
 -      if !$linked_with_libc
 -      && $is_shared
 -      && @{$item->elf->{NEEDED} // [] }
 -      && (none { /^libc[.]so[.]/ } @{$item->elf->{NEEDED} // [] })
 -      && $item->name !~ m{/libc\b}
 -      && (!$self->built_with_octave
 -        || $item->name !~ m/\.(?:oct|mex)$/);
+-
      $self->pointed_hint('program-not-linked-against-libc', $item->pointer)
        if !$linked_with_libc
        && !$is_shared

t/recipes/checks/binaries/prerequisites/binaries-libc-link/eval/hints

  binaries-libc-link (binary): shared-library-lacks-prerequisites [usr/lib/basic/libbasic-nodeps]
  binaries-libc-link (binary): program-not-linked-against-libc [usr/bin/basic]
 -binaries-libc-link (binary): library-not-linked-against-libc [usr/lib/basic/libbasic-nolibc]

tags/l/library-not-linked-against-libc.tag deleted

 -Tag: library-not-linked-against-libc
 -Severity: error
 -Check: binaries/prerequisites
 -Explanation: The package installs a library which is not dynamically linked
 - against libc.
 - .
 - It is theoretically possible to have a library which doesn't use any
 - symbols from libc, but it is far more likely that this is a violation
 - of the requirement that "shared libraries must be linked against all
 - libraries that they use symbols from in the same way that binaries
 - are".
 -See-Also:
 - debian-policy 10.2,
 - Bug#698720