Re: Changing a cl-defstruct definition in a published package

[Stefan Monnier <monnier@iro.umontreal.ca>]

> (message
>  (eval-when-compile
>    (if (bound-and-true-p byte-compile-current-file)
>        "I'm being byte-compiled!"
>      "I'm being evaluated :(")))

Let's say, this is in a file foo.el.  And let's say we have a file
bar.el which contains:

   (require 'foo)
   ...

Then byte-compiling bar.el (when foo.el has not been byte-compiled)
will emit a message "I'm being byte-compiled!".

But yes, there are other ways.  I think I remember using something like

    (setq my-witness t)

    (eval-when-compile
      (message (if (bound-and-true-p my-witness)
                   "Loading this file non-compiled"
                 "Byte-compiling this file")))

    (setq my-witness nil)

in the past,


        Stefan