cmake_minimum_required(VERSION 3.30) project(libmodbus-test C) find_package(libmodbus CONFIG REQUIRED) add_library(imported::modbus ALIAS modbus) add_executable(main main.c) target_link_libraries(main PRIVATE imported::modbus) find_package(PkgConfig REQUIRED) pkg_check_modules(libmodbus_pc libmodbus REQUIRED IMPORTED_TARGET) add_executable(main-pkconfig main.c) target_link_libraries(main-pkconfig PRIVATE PkgConfig::libmodbus_pc )