On Mon, 11 May 2026 22:57:17 +0200 (CEST) Anton Gladky <[email protected]> wrote:
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Hash: SHA256
Package: src:solvespace
Version: 3.1+ds1-4
Severity: important
Tags: sid forky ftbfs
User: [email protected]
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
solvespace FTBFS with libeigen3-dev 5.0.1. The full build log is available at:
https://debusine.debian.net/debian/developers-gladk-eigen3/artifact/3761796/
Here is the most probably relevant part of the failing build log:
===========================================
- -- Using in-tree Eigen
CMake Error at CMakeLists.txt:207 (message):
Eigen 3 not found on system or in-tree
===========================================
libeigen3-dev_5.0.1-1 is available in experimental.
Hi Anton,
do you know if something underlying changed ? According to
https://libeigen.gitlab.io/eigen/docs-5.0/TopicCMakeGuide.html
this should just work as before. Even when I added a patch to use the
exact example specified for 5.0 it still couldn't find it.
best,
werdahias
