if(EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/${LIBC_TARGET_OS}) add_subdirectory(${CMAKE_CURRENT_SOURCE_DIR}/${LIBC_TARGET_OS}) endif() add_entrypoint_object( creat ALIAS DEPENDS .${LIBC_TARGET_OS}.creat ) add_entrypoint_object( open ALIAS DEPENDS .${LIBC_TARGET_OS}.open ) add_entrypoint_object( openat ALIAS DEPENDS .${LIBC_TARGET_OS}.openat )