fix(cmake): Add missing Eigen3 dependency for PCL#10
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qza36 wants to merge 1 commit intoMIT-SPARK:mainfrom
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fix(cmake): Add missing Eigen3 dependency for PCL#10qza36 wants to merge 1 commit intoMIT-SPARK:mainfrom
qza36 wants to merge 1 commit intoMIT-SPARK:mainfrom
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When building the project on Ubuntu 22.04 with ROS 2 Humble, the compilation failed with the error "fatal error: Eigen/Core: No such file or directory". This issue occurs because the Point Cloud Library (PCL) has a hard dependency on the Eigen library for linear algebra operations, but this dependency was not declared in our project's CMake configuration. This commit resolves the build failure by: 1. Adding `find_package(Eigen3 REQUIRED)` to locate the Eigen library on the system. 2. Linking the executable against the `Eigen3::Eigen` imported target in `target_link_libraries`. This is the modern CMake approach that also handles include directories automatically. NOTE: To build this project, developers must have the Eigen library installed. For the specified environment (Ubuntu 22.04), this can be installed by running: `sudo apt-get install libeigen3-dev`
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When building the project on Ubuntu 22.04 with ROS 2 Humble, the compilation failed with the error "fatal error: Eigen/Core: No such file or directory".
This issue occurs because the Point Cloud Library (PCL) has a hard dependency on the Eigen library for linear algebra operations, but this dependency was not declared in our project's CMake configuration.
This commit resolves the build failure by:
find_package(Eigen3 REQUIRED)to locate the Eigen library on the system.Eigen3::Eigenimported target intarget_link_libraries. This is the modern CMake approach that also handles include directories automatically.NOTE: To build this project, developers must have the Eigen library installed. For the specified environment (Ubuntu 22.04), this can be installed by running:
sudo apt-get install libeigen3-dev