cmake_minimum_required(VERSION 3.0) project(libigl) add_library(libigl INTERFACE) find_package(libigl QUIET) if(libigl_FOUND) message(STATUS "IGL found, using system version...") target_link_libraries(libigl INTERFACE igl::core) else() message(STATUS "IGL NOT found, using bundled version...") target_include_directories(libigl SYSTEM BEFORE INTERFACE ${LIBDIR}/libigl) endif()