cmake_minimum_required(VERSION 3.28) set(CMAKE_C_STANDARD 11) set(CMAKE_CXX_STANDARD 20) project(lib C CXX) add_library(test SHARED) target_include_directories(test SYSTEM INTERFACE .) target_sources(test PUBLIC test.c ) target_sources(test PUBLIC FILE_SET HEADERS FILES test.h ) install( TARGETS test FILE_SET HEADERS DESTINATION include )