Bug#1136326: ros-eigen-stl-containers: FTBFS with libeigen3-dev 5.0 (major version transition)

[Anton Gladky]

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Package: src:ros-eigen-stl-containers
Version: 0.1.8-6
Severity: important
Tags: sid forky ftbfs
User: debian-devel at 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

ros-eigen-stl-containers FTBFS with libeigen3-dev 5.0.1. The full build log is available at:

  https://debusine.debian.net/debian/developers-gladk-eigen3/artifact/3761172/

Here is the most probably relevant part of the failing build log:
    ===========================================

- -- catkin 0.8.12
- -- BUILD_SHARED_LIBS is on
CMake Error at CMakeLists.txt:15 (find_package):
  By not providing "Findcmake_modules.cmake" in CMAKE_MODULE_PATH this
  project has asked CMake to find a package configuration file provided by
  "cmake_modules", but CMake did not find one.

  Could not find a package configuration file provided by "cmake_modules"
  with any of the following names:

    cmake_modules.cps
    cmake_modulesConfig.cmake
    cmake_modules-config.cmake

  Add the installation prefix of "cmake_modules" to CMAKE_PREFIX_PATH or set
  "cmake_modules_DIR" to a directory containing one of the above files.  If
  "cmake_modules" provides a separate development package or SDK, be sure it
  has been installed.


    ===========================================
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
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