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[77.11.142.233]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-4548ec6c221sm23461751f8f.13.2026.05.10.22.00.56 for <maintonly@bugs.debian.org> (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 10 May 2026 22:00:56 -0700 (PDT) Sender: Anton Gladky <gladky.anton@gmail.com> Received: by gladklaptop.localdomain (Postfix, from userid 1000) id AFD0FF200B5; Mon, 11 May 2026 07:00:55 +0200 (CEST) Subject: dolfin: FTBFS with libeigen3-dev 5.0 (major version transition) From: Anton Gladky <gladk@debian.org> To: <maintonly@bugs.debian.org> User-Agent: mail (GNU Mailutils 3.20) Date: Mon, 11 May 2026 07:00:55 +0200 Message-Id: <20260511050055.AFD0FF200B5@gladklaptop.localdomain> Delivered-To: maintonly@bugs.debian.org -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 Package: src:dolfin Version: 2019.2.0~legacy20240219.1c52e83-27 Severity: important Tags: sid forky ftbfs User: debian-devel@lists.debian.org Usertags: eigen3-5.0 Dear Maintainer, your package depends on libeigen3-dev. The upstream released a new major version of this mathematical library, 5.0.0. Some basic information about new features and changes in this version can be found here: https://libeigen.gitlab.io/releases/5.0/ This is a major version change and may require code changes in packages depending on eigen3. The key breaking changes include: - Minimum required C++ standard is now C++14 - Changes in the build system integration - Some API name changes dolfin FTBFS with libeigen3-dev 5.0.1. The full build log is available at: https://debusine.debian.net/debian/developers-gladk-eigen3/artifact/3755404/ Here is the most probably relevant part of the failing build log: =========================================== - -- Eigen3 version .. found in /usr/include/eigen3, but at least version 3.2.90 is required CMake Error at /usr/share/cmake-4.3/Modules/FindPackageHandleStandardArgs.cmake:290 (message): Could NOT find Eigen3 (missing: EIGEN3_VERSION_OK) (Required is at least version "3.2.90") Call Stack (most recent call first): /usr/share/cmake-4.3/Modules/FindPackageHandleStandardArgs.cmake:654 (_FPHSA_FAILURE_MESSAGE) cmake/modules/FindEigen3.cmake:97 (find_package_handle_standard_args) CMakeLists.txt:279 (find_package) - -- Configuring incomplete, errors occurred! cd obj-x86_64-linux-gnu && tail -v -n \+0 CMakeCache.txt =========================================== libeigen3-dev_5.0.1-1 is available in experimental. When this package version lands into unstable (probably at the beginning of June 2026), this bug will be increased in severity to serious. Thanks, Anton -----BEGIN PGP SIGNATURE----- iQIzBAEBCgAdFiEEu71F6oGKuG/2fnKF0+Fzg8+n/wYFAmoBYocACgkQ0+Fzg8+n /wZ6rRAAj/ldo9eBDdXHYpPsceuihPujp19BsQYLmkonN6vbpbTKqWcaAociH21m 3SnvfEqu/I7w5dqB/dUVCk8Hfah9P/C/YMmdEx3wbiCWI5S7QvD9bZUret5ZExDg ajy/tQPUreQZdNDvjJjJrw/XDXyrtTAWPKsGyXVIIFuDquGzpMOZBfECxDpztcP0 NXTa/TkOU8zBDKpXD3HvupuYrhWgL2eKk8I0QKLwUYfOzSZkbInZCEbVr1F0LtC8 Fn6+5oLW6SJZhX/J5rWqkndgXzd6lK0lSU8iktA1SdaZYz13J6oNeJaTIV2wCNqs FcvGF/3ly+jky3PoTUqCw9RFUwmk196/7PhP3Ixo+8s4RnCH48gYjHPrjLMrc/Pv Py5s4RPBbimXu2fp0v46jXtoC5E8JkHbLVF0DjkSj1p9B41vBb7+19zarKLCl09+ YoAGZa8WjtJT/PPHZN7HVnzB87x33z0rtwSmJ4TAXV5NuWlYInUEXPRB6CeKdsiP na0uFeKLmuUfOuLLCIlSDq1i2osHSbXE8hVRliVEbjKeQSNeJyjtebsbT6LCAgUT SYF5/jJoWYUUH1JJjshY0l0M6whlUPpBz0odbOi5mP8JQheeTn0BNKI+W/pAj0aV rU690s1MBfPq9mLxoiBD71PFHWudLPX//4GLnwUKJnRzoZsbDIk= =CbM/ -----END PGP SIGNATURE----- ]