Link eigen cmakelists. The best practice is to use the exported imported target Eigen3::Eigen. I have followed the CMake instructions on the Eigen Docs but I am using Jetbrain's Clion and not CMake directly. 3 of Eigen. If you have multiple installed version of Eigen, you can pick your favorite one by setting the Eigen3_DIR cmake's variable to the respective path containing the Eigen3*. Using Eigen in CMake Projects Eigen provides native CMake support which allows the library to be easily used in CMake projects. This guide will walk you through how to install Eigen3, set up a simple project using CMake, and write a basic Eigen3 example in C++. . 0 or 3. Nov 4, 2025 · Let's dive into how to use Eigen3 in CMake projects, focusing on common issues and a robust modern solution. cpp. I can compile my code using the library by just copying the Jan 8, 2016 · Here, path-to-example-directory is the path to the directory that contains both CMakeLists. cpp #include <iostream> #include <Eigen/Eigen> int main(){ double a; Eigen::Vector3i index1(11, 21, 31); a = index1. Jan 6, 2020 · Every (correctly configured) CMake based library or module exports its include directories, you only need to link it to your application or library (via target_add_libraries) in order to get the compiler to search the right directories for header files. Note CMake 3. 9 from eigen repo Aug 14, 2024 · 然后就可以开心的写程序了： main. Sep 18, 2020 · 3 I am trying to include the Eigen library to my CMakelist. I searched trough Stackoverflow and Google but did no Usage the Eigen library with cmake Create a folder of cmake at the root directory of your source code; Copy the configuration files of Eigen to the directory so-called cmake; Here, path-to-example-directory is the path to the directory that contains both CMakeLists. 1). CMake 3. Do not forget to set the CMAKE_PREFIX_PATH variable if Eigen is not installed in a default location or if you want to pick a specific version. Table of Contents Installing Eigen3 Setting Up CMake Creating a Simple Eigen provides native CMake support which allows the library to be easily used in CMake projects. If you are writing your own CMakeLists. 3 REQUIRED) add_executable (example example. So I do not know how to use the Cmake commands provided. Only this name works with the second approach, and it is described in the documentation for Eigen usage. Jan 23, 2021 · This only worked correctly for me when using target_link_libraries(YourTarget PRIVATE eigen) edit: fetching GIT_TAG 3. cmake files. By the way, this works for Eigen versions 3 and above, using CMake versions 3 and above. The Eigen3 library provides native CMake support (since version 3. 04. 5 (or later) is required to enable this functionality. cpp) target_link_libraries (example Eigen3::Eigen) You should not use include_directories since CMake 3 was released -- the targets approach should be preferred whenever available. For example, I often use Eigen Library in ROS, a development environment for Robotic Systems, which essentially need users to create projects based on CMake. Dec 23, 2018 · However, you'd probably still wish to know how to 'bind' Eigen with CMake for various reasons. 5 of CMake, though you'll often see minimum requirements set to 3. 4 LTS system. Eigen exports a CMake target called Eigen3::Eigen which can be imported using the find_package CMake command and used by calling target_link_libraries as in the following example: CMake will produce project files that generate an executable called example which requires at least version 3. txt that uses Eigen I suggest using code like this: find_package (Eigen3 3. txt and example. Here, path-to-example-directory is the path to the directory that contains both CMakeLists. txt. Aug 14, 2019 · Eigen3 is a powerful and versatile C++ library used for linear algebra, making it a great choice for scientific computing, 3D graphics, or any application involving matrices and vectors. Apr 3, 2018 · I am relatively new to C++ and CMake and trying to use the eigen library inside my current CMake project but I simply can not get it to work. “Linking” this library to the executable will cause the headers to be included during compilation, making everything work. Jul 25, 2020 · Unfortunately, i have some problems adding the headers only Eigen 3. Eigen is a C++ matrix operation library that operates very efficiently. 0 (or later) is required to enable this functionality. Eigen provides native CMake support which allows the library to be easily used in CMake projects. 3. norm Mar 9, 2020 · Note, that both approaches uses Eigen3::eigen target instead of eigen for link with. 7 Library to my Makefile with Cmake on my Ubuntu 18. Feb 22, 2025 · I wanted to try Eigen again after a long time, so I created a CMakeLists file and set up an environment to run it. In this tutorial, I walk you through how to install the Eigen C++ library on Windows and demonstrate 3 different methods to link it with your C++ programs: Using G++ compiler in the command prompt Aug 25, 2017 · That file will define a target called Eigen3::Eigen containing a set of instructions to include the Eigen headers in the main target. zbf lgw vvp shp szb ntz rjp sjd jfh gto fmd qhz kbq hzt rwl