Cannot locate referenced shared object

[Jack Borer]

On Ubuntu 24.04, after installing libapriltag-dev and adding find_package(apriltag REQUIRED) to my CMakeLists.txt I get the following error during cmake configuration:

#9 0.440 CMake Error at /usr/lib/x86_64-linux-gnu/cmake/apriltag/apriltagTargets.cmake:92 (message):
#9 0.440 The imported target "apriltag::apriltag" references the file
#9 0.440
#9 0.440 "/usr/lib/lib/x86_64-linux-gnu/libapriltag.so.3.3.0"
#9 0.440
#9 0.440 but this file does not exist. Possible reasons include:
#9 0.440
#9 0.440 * The file was deleted, renamed, or moved to another location.
#9 0.440
#9 0.440 * An install or uninstall procedure did not complete successfully.
#9 0.440
#9 0.440 * The installation package was faulty and contained
#9 0.440
#9 0.440 "/usr/lib/x86_64-linux-gnu/cmake/apriltag/apriltagTargets.cmake"
#9 0.440
#9 0.440 but not all the files it references.

---
If I run the same exact set of commands on ubuntu 22.04 the cmake configuration runs without error. Looking at the error message I see something suspicious in the path "/usr/lib/lib/x86_64-linux-gnu/libapriltag.so.3.3.0" that the word lib is repeated twice. I can find no such folder or the referenced file there.

To recreate the issue easily I have created a minimal docker file which I will copy and paste below. If you change the base image to 22.04 the process executed with no configuration error. I have looked in the repository changelog and other issues but found no reference to a problem related to this.

Thank you in advance to anyone who has a moment to look at this, and if you can point me in the right direction if I have made a simple mistake that would be much appreciated.

---

FROM ubuntu:24.04

ARG DEBIAN_FRONTEND=noninteractive
SHELL ["/bin/bash", "-c"]
WORKDIR /buildroot

# Install build prereqs
RUN apt-get update; apt-get install --yes build-essential cmake ninja-build;
# Install libapriltag-dev
RUN apt-get update; apt-get install --yes libapriltag-dev;
# Write minimal CMakeLists.txt
RUN echo -e "cmake_minimum_required(VERSION 3.22)\nproject(apriltag_bug LANGUAGES CXX)\nfind_package(apriltag REQUIRED)" > CMakeLists.txt
# Run cmake configuration and observe failure in error logs on 24.04
RUN cmake -G Ninja -S /buildroot

[dima (9-ubuntu-4)]

This works on Debian and the latest libapriltag-dev package: version 3.4.2-1+b2. You say that 24.04 is broken but 22.04 worked. These have 3.3 and 3.2 of apriltag respectively. I susped that this issue is fixed in 3.4. Are you able to try?