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Re: Working Around for cl-count


From: WJ
Subject: Re: Working Around for cl-count
Date: 1 Dec 2012 01:20:00 GMT
User-agent: XanaNews/1.18.1.6

Dmitry Gutov wrote:

> "Drew Adams" <address@hidden> writes:
> 
> >> >> >> Versions of Emacs less than version 24.2 complain about 
> >> >> >> the lack of `cl-count`.
> >> >> >
> >> >> > In older versions, `cl-count' is called `count'.
> >> >> > Use something like this:
> >> >> > (if (fboundp 'cl-count) #'cl-count #'count)
> >> >> 
> >> >> Or use the `cl-lib' package that's on GNU ELPA.
> >> >
> >> > You can't do that if your code that calls `cl-count' is 
> >> > used by others.
> >> >
> >> > What are you going to do?  Tell users of your code who have 
> >> > Emacs < 24.2 that they must download `cl-lib' from GNU ELPA
> >> > and put it in their `load-path'?  Or download it yourself
> >> > and bundle that package with your code?
> >> 
> >> You publish your code as package to one of the ELPA 
> >> repositories and add "cl-lib" as one of the dependencies.
> > 
> > So instead of fixing this at the source-code level, with just a few chars of
> > Lisp, you try to solve the problem at the distribution level: "Just use GNU
> > ELPA".
> > 
> > Have hammer, will see nails...
> 
> You can use whatever workaround you want, but obviously the shim cl-lib
> published at GNU ELPA is targeted at packages already present in or
> indented for ELPA.

: (version)
"GNU Emacs 23.4.1 (i386-mingw-nt5.1.2600)
 of 2012-02-04 on MARVIN"
: (require 'cl)
: (count 2 (number-sequence 1 22) :key (apply-partially 'gcd 4))
6


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