CMake Warning at source_subfolder/cmake/findDependencies.cmake:11 (message): If you do not want to install Eigen you can turn on the option USE_OWN_EIGEN3 Call Stack (most recent call first): source_subfolder/CMakeLists.txt:14 (include) CMake Warning: Manually-specified variables were not used by the project: CMAKE_EXPORT_NO_PACKAGE_REGISTRY CMAKE_INSTALL_BINDIR CMAKE_INSTALL_DATAROOTDIR CMAKE_INSTALL_INCLUDEDIR CMAKE_INSTALL_LIBDIR CMAKE_INSTALL_LIBEXECDIR CMAKE_INSTALL_OLDINCLUDEDIR CMAKE_INSTALL_SBINDIR CMake Warning: Manually-specified variables were not used by the project: CMAKE_EXPORT_NO_PACKAGE_REGISTRY collect2: fatal error: ld terminated with signal 15 [Terminated] compilation terminated. make[2]: *** [bin/test_package] Error 1 make[2]: *** Deleting file 'bin/test_package' make[1]: *** [CMakeFiles/test_package.dir/all] Error 2 make: *** [all] Error 2 ERROR: Exiting with code: 5