Re: emacs 22.1 hogging CPU

[Dan Nicolaescu]

Richard Stallman <address@hidden> writes:

  >     semantic-version is a variable defined in `semantic.el'.
  >     Its value is "2.0pre3"
  > 
  >     It looks like there was a pre4 that came out a few days
  >     after emacs 22.1.  I'll try having him upgrade to that.
  > 
  > I wonder if there is anything we can do to warn users about this.
  > For instance, in Emacs 22.2 we could add a feature would check
  > for version numbers (somehow) in files being loaded, and give an error
  > if they meet a criterion.
  > 
  > Maybe the feature could involve an alist whose elements look like
  > (FILE VARIABLE REGEXP ERROR).  It could be initialized to
  > 
  > (("semantic.el" semantic-version "2.0pre3"
  >   "Version %s of %s won't run in Emacs 22"))
  > 
  > Any comments or suggestions?

We would have to support a feature like this until the end of time for
something that is not that likely to repeat. 
Has something like this happened in the past? Many times?
IMVHO it does not seem like a good idea.

Maybe we can get the semantic people to send an email to their mailing
list (if there is one) and put a note prominent note on the website
about this issue.