http://bugzilla.opensuse.org/show_bug.cgi?id=1185700 http://bugzilla.opensuse.org/show_bug.cgi?id=1185700#c1

Paul Tannington paul.pgp-7@gmx.com changed:

What |Removed |Added ---------------------------------------------------------------------------- Status|NEW |RESOLVED Resolution|--- |INVALID

--- Comment #1 from Paul Tannington paul.pgp-7@gmx.com --- Snapshot 20210504, which included an update to libopencv* has solved this issue.

Apologies for the noise.

http://bugzilla.opensuse.org/show_bug.cgi?id=1185700 http://bugzilla.opensuse.org/show_bug.cgi?id=1185700#c4

--- Comment #4 from Paul Tannington paul.pgp-7@gmx.com --- libopencv* is from the standard TW OSS repository

With digikam from KDE:Extra all works OK

paul@Orion-15:~$ zypper se -is libopencv Loading repository data... Reading installed packages...

S | Name | Type | Version | Arch | Repository ---+------------------------+---------+------------+--------+------------------------ i+ | libopencv3_4 | package | 3.4.10-2.4 | x86_64 | openSUSE-Tumbleweed-Oss i | libopencv4_5 | package | 4.5.2-1.1 | x86_64 | openSUSE-Tumbleweed-Oss i | libopencv_imgcodecs4_5 | package | 4.5.2-1.1 | x86_64 | openSUSE-Tumbleweed-Oss i | libopencv_ximgproc4_5 | package | 4.5.2-1.1 | x86_64 | openSUSE-Tumbleweed-Oss paul@Orion-15:~$ zypper se -is *digikam* Loading repository data... Reading installed packages...

S | Name | Type | Version | Arch | Repository ---+-----------------+---------+--------------+--------+----------------------- i+ | digikam | package | 7.2.0-214.19 | x86_64 | KDE Extra (Tumbleweed) i+ | digikam-plugins | package | 7.2.0-214.19 | x86_64 | KDE Extra (Tumbleweed) i+ | libdigikamcore7 | package | 7.2.0-214.19 | x86_64 | KDE Extra (Tumbleweed) paul@Orion-15:~$

Changing digikam to that provided by TW OSS standard repository it fails to launch.

See also

https://forums.opensuse.org/showthread.php/553645-digikam-fails-to-launch-af...

where other users are also reporting this issue.

http://bugzilla.opensuse.org/show_bug.cgi?id=1185700 http://bugzilla.opensuse.org/show_bug.cgi?id=1185700#c7

Fabian Vogt fabian@ritter-vogt.de changed:

What |Removed |Added ---------------------------------------------------------------------------- CC| |fabian@ritter-vogt.de

--- Comment #7 from Fabian Vogt fabian@ritter-vogt.de --- (In reply to Stefan Br�ns from comment #6)

(In reply to Fabian Vogt from comment #5)

...

(In reply to Fabian Vogt from comment #3)

...

It appears to work here, that symbol is provided by libopencv4_5-4.5.2-1.1.x86_64. What's the version of the libopencv4_5 package on your system? Where is it from?

That was indeed a false positive, it fails with LD_BIND_NOW=1. I asked for a rebuild, that's running now.

It appears like OpenCV broke ABI, because the dnn namespace is versioned and that version got bumped: https://github.com/opencv/opencv/commit/ a823b06fa5afd0a1c42f032f00a5169bf8ddef1e#diff- 635059e6e33138c5734e926dfbb7355b08ce112d9ec542313f0377761bf00da6

Was that change intentional? If so, is it possible to use symbol versioning for that so that it's expressed as RPM dependencies?

Definitely intentional, as DNN API/ABI has changed.

cv::dnn is the only module which has broken ABI in a minor version. For all other modules, the soversion/soname is sufficient. I have filed https://github.com/opencv/opencv/issues/20046

Thanks, subscribed.

...

The problem in the original comment was using old opencv (old TW) with new digikam (KDE:Extra), while plain TW has new opencv combined with old digikam.

Why was digikam in TW not rebuild?

Packages in Tumbleweed are only rebuilt when they are no longer installable. That's why symbol versioning or an explicit %requires_eq would solve this particular issue.

http://bugzilla.opensuse.org/show_bug.cgi?id=1185700 http://bugzilla.opensuse.org/show_bug.cgi?id=1185700#c8

Michael Malessa michael.malessa@web.de changed:

What |Removed |Added ---------------------------------------------------------------------------- CC| |michael.malessa@web.de

--- Comment #8 from Michael Malessa michael.malessa@web.de --- With the update from Digikam from version 7.2.0-1.2 to version 7.2.0-1.3 in Tumbleweed snapshot 20210507 Digikam works normally again. I think that the bug report can be closed.

http://bugzilla.opensuse.org/show_bug.cgi?id=1185700 http://bugzilla.opensuse.org/show_bug.cgi?id=1185700#c10

Wolfgang Bauer wbauer@tmo.at changed:

What |Removed |Added ---------------------------------------------------------------------------- CC| |wbauer@tmo.at

--- Comment #10 from Wolfgang Bauer wbauer@tmo.at --- This should actually be fixed meanwhile by the new opencv soversion scheme, no?

https://github.com/opencv/opencv/pull/21178

• OpenCV 4.x doesn't guarantee or maintain ABI compatibility:

https://github.com/opencv/opencv/wiki/OE-4.-OpenCV-4

• We should increase SO version on each release