Proper sequence of commands to build SML/NJ from SVN

What is the proper sequence of commands to fully (re)build/bootstrap
SML/NJ from a checked out SVN copy?

Specifically, I'd like to fix a couple of minor issues in SML/NJ's
Basis library implementation, verify/test the changes, and submit a
patch, but I have not been able to rebuild the compiler after the
changes to a usable state.  The instructions in
http://www.smlnj.org/doc/CM/btcomp/index.html do not work.  In
particular, instructions on the page
http://www.smlnj.org/doc/CM/btcomp/node8.html do NOT produce a working
system (at least the rm command is wrong).  Depending on what I try,
either magic numbers differ in libraries (IOW, some libraries weren't
updated properly for the newly build compiler) or some files become
missing (if I actually delete files from lib or bin).

Please write a single shell script or Makefile for the process.

-Vesa Karvonen

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