Restore db with multi-tablespaces

Hi,

I have a database with several tablespaces on different disks and
backup-ed it with pg_basebackup. I have theses files:
base_20120902.tar.gz
27781958.tar.gz
27781959.tar.gz

Now I want to restore it on another server with only one disk. I'm
confused how to handle those tablespace files. Is there a guideline or
doc for this kind of restore?