Your message dated Tue, 28 Oct 2025 08:34:11 +0000
with message-id <[email protected]>
and subject line Bug#1119138: fixed in flac 1.5.0+ds-5
has caused the Debian Bug report #1119138,
regarding regression: libflac-dev no longer enough for CMake find_package(FLAC)
to be marked as done.
This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.
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--
1119138: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1119138
Debian Bug Tracking System
Contact [email protected] with problems
--- Begin Message ---
Package: libflac-dev
Version: 1.5.0+ds-4
Severity: serious
Tags: ftbfs
Control: affects -1 + src:libsdl3-mixer
Reproducible by attempting to build (for example)
libsdl3-mixer/experimental. This package Build-Depends on libflac-dev
and uses the C libFLAC, but does not use libFLAC++.
Expected result: it successfully detects libFLAC, as it did in the past.
Actual result (edited to remove blank lines):
>-- Found Vorbis: /usr/lib/x86_64-linux-gnu/libvorbisfile.so
>-- Using system vorbisfile
>CMake Error at /usr/lib/x86_64-linux-gnu/cmake/FLAC/targets.cmake:110
>(message):
> The imported target "FLAC::FLAC++" references the file
> "/usr/lib/x86_64-linux-gnu/libFLAC++.so.11.0.0"
> but this file does not exist. Possible reasons include:
> * The file was deleted, renamed, or moved to another location.
> * An install or uninstall procedure did not complete successfully.
> * The installation package was faulty and contained
> "/usr/lib/x86_64-linux-gnu/cmake/FLAC/targets.cmake"
> but not all the files it references.
>Call Stack (most recent call first):
> /usr/lib/x86_64-linux-gnu/cmake/FLAC/flac-config.cmake:42 (include)
> CMakeLists.txt:565 (find_package)
>-- Configuring incomplete, errors occurred!
I suspect that other packages like libsndfile will also be affected by
this issue, but I haven't tested others.
I see these options for how to resolve this:
1. libflac-dev contains development files for both FLAC and FLAC++.
libflac++-dev becomes an empty transitional package depending on
libflac-dev.
2. Keep libflac-dev and libflac++-dev separate.
Ask upstream to convert the FLAC::FLAC++ target into FLAC++::FLAC++
in its own CMake module, and install that into libflac++-dev. This
would be a breaking change for CMake users of FLAC++, which would now
have to use find_package(FLAC++). (But there are not many users of
libflac++, compared with users of libflac.)
3. Move the CMake files to libflac++-dev. This would partially revert
the fix for #1118470: dependent packages would be able to
find_package(FLAC) without supplying their own FindFLAC.cmake, but
only if they B-D on libflac++-dev, even if the only library they
actually wanted is the C libflac.
4. Somehow make the FLAC::FLAC++ target only be defined if the
appropriate library is actually installed (I don't know how feasible
this is, I don't know CMake very well).
5. (maybe others, I don't know CMake very well)
A superficial autopkgtest similar to libsdl3's debian/tests/cmake could
have detected this, and might be a good idea to have available to avoid
future regressions when changing the build system around.
Thanks,
smcv
--- End Message ---
--- Begin Message ---
Source: flac
Source-Version: 1.5.0+ds-5
Done: Fabian Greffrath <[email protected]>
We believe that the bug you reported is fixed in the latest version of
flac, which is due to be installed in the Debian FTP archive.
A summary of the changes between this version and the previous one is
attached.
Thank you for reporting the bug, which will now be closed. If you
have further comments please address them to [email protected],
and the maintainer will reopen the bug report if appropriate.
Debian distribution maintenance software
pp.
Fabian Greffrath <[email protected]> (supplier of updated flac package)
(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing [email protected])
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA512
Format: 1.8
Date: Tue, 28 Oct 2025 09:07:32 +0100
Source: flac
Architecture: source
Version: 1.5.0+ds-5
Distribution: unstable
Urgency: medium
Maintainer: Debian Multimedia Maintainers <[email protected]>
Changed-By: Fabian Greffrath <[email protected]>
Closes: 1119138
Changes:
flac (1.5.0+ds-5) unstable; urgency=medium
.
* Let libflac-dev contain the development files for both libflac and
libflac++, turn libflac++-dev into a dummy package that depends on
libflac-dev (Closes: #1119138)
* Mark the flac package as Multi-Arch: foreign and let the
libflac-dev package depend on it, this is required when using
cmake
* Do not run dh_update_autotools_config and dh_autoreconf during
build
* Add obj-*/ to debian/clean
* Remove debian/not-installed, not necessary anymore
* Give up tracking mangled C++ symbols, use Upstream-Version for
libflac++11
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