Re: No calc in pretest?

[Richard Stallman]

    Suppose this option were added on 2002 October 23.  Now, assume
    someone is running CVS Emacs as of 2002 October 22 (version
    21.5.-99.3).  He installs a third-party package you've released, which
    wants to know if :file is supported, and use it if it is.

People using CVS versions must expect to encounter various transient
problems.  They should always try updating to see if the problem goes
away.