[M3commit] [modula3/cm3] a149d4: Preexisting CM3 environment variable must be delet...

[Jay Krell]

  Branch: refs/heads/master
  Home:   https://github.com/modula3/cm3
  Commit: a149d4b5e715d89b076c92e0b41d74f9b5ff56e4
      https://github.com/modula3/cm3/commit/a149d4b5e715d89b076c92e0b41d74f9b5ff56e4
  Author: Jay Krell <jay.krell at cornell.edu>
  Date:   2015-06-02 (Tue, 02 Jun 2015)

  Changed paths:
    M scripts/python/make-dist.py

  Log Message:
  -----------
  Preexisting CM3 environment variable must be deleted or updated
when changing toolsets as make-dist.py progresses from initial
bootstrap to toolsets that it builds and uses. This should fix
John's cvsup problem.