command for building latest cmucl on ppc/darwin

Following the "slightly more complicated build" instructions, and
using the binary

CMU Common Lisp 19a+ Darwin/Exp 2004-07-25-090

I assembled this command by assembling the files in src/bootfiles/19a/
in reverse order by modification time:

src/tools/build.sh -C "" -o "./bin/lisp" -B boot1-cross.lisp -B boot2-cross-sparc.lisp -B boot3.lisp -B boot4.lisp -B boot6-sxhash.lisp -B boot7.lisp -B boot-2004-10-1-ppc.lisp -B boot-2004-10-2.lisp -B boot-2005-02-ppc-linkage.lisp -B boot-2005-02-1-sparc.lisp -B boot-2005-03-1.lisp -B boot-2005-03-2.lisp -B boot-2005-04-1-ppc.lisp -B boot-19b.lisp

This ended up giving me the following (error):

//starting build: Thu Jun 22 12:37:45 CDT 2006
; Loading #p"/Users/jcorneli/cmucl/src/bootfiles/19a/boot1-cross.lisp".
; Loading #p"/Users/jcorneli/cmucl/src/bootfiles/19a/boot2-cross-sparc.lisp".
; Loading #p"/Users/jcorneli/cmucl/src/bootfiles/19a/boot3.lisp".
; Loading #p"/Users/jcorneli/cmucl/src/bootfiles/19a/boot4.lisp".
; Loading #p"/Users/jcorneli/cmucl/src/bootfiles/19a/boot6-sxhash.lisp".
;; Loading #p"/Users/jcorneli/cmucl/src/tools/cross-scripts/cross-ppc-ppc-darwin.lisp".
;;; Loading #p"/Users/jcorneli/cmucl/src/tools/comcom.lisp".
; 

; Warning: This function is undefined:
;   COPY-PACKAGES

*snip*

Can someone please tell me what I should be doing instead?