Re: [PATCH] New convenience macros

[Richard Stallman]

    How about.. `do-in-emacs', `do-in-xemacs', `do-in-sxemacs', and
    `with-emacs-type', and change the symbol in `with-emacs-type' from `gnu'
    to `emacs'.  Would that be better?

Those names are ok.  We could install them with those names.

However, Stefan wrote:

    The advantage over a macro is that the elisp code will work regardless of
    whether this optimization is implemented (it only affects byte-compiler
    warnings anyway), so it's trivially backward&forward compatible.

This is a good argument for _using_ featurep rather than the macros.

That doesn't mean we can't also install the macros.  But maybe you
will agree it is better to use featurep.