cd a/b/c/ && /usr/bin/tar --force-local -jxf ../../../../bindistprep/ghc-6.13.20091119-i386-apple-darwin.tar.bz2 tar: Option --force-local is not supported Usage: List: tar -tf <archive-filename> Extract: tar -xf <archive-filename> Create: tar -cf <archive-filename> [filenames...] Help: tar --help make: *** [all] Error 1