Re: (Why) Do we still care about Epoch?

[FAQ Alert for Christian, see bottom] Martin Buchholz <martin(a)xemacs.org&gt; writes: Cool. This is in a region of code that inserts: ;;; this file uses opcodes which do not exist in Emacs 19. (if (and (boundp 'emacs-version) (or (and (boundp 'epoch::version) epoch::version) (string-lessp emacs-version "20"))) (error "`%s' was compiled for Emacs 20")) I propose that this become: ;;; this file uses opcodes which do not exist in Emacs 19. (or (>= emacs-major-version 20) (error "`%s' was compiled for Emacs 20")) If the symbol `emacs-major-version' doesn't exist, Emacs cannot load the file anyway. The boundp test was formerly needed because the emacs.*version stuffs were created in version.el, now they are builtin variables. This is in a region of code that inserts: ;;; this file uses opcodes which do not exist prior to ;;; XEmacs 19.14/GNU Emacs 19.29 or later. (if (and (boundp 'emacs-version) (or (and (boundp 'epoch::version) epoch::version)\n" (and (not (string-match \"XEmacs\" emacs-version))\n" (string-lessp emacs-version \"19.29\"))\n" (string-lessp emacs-version \"19.14\")))\n" (error "`%s' was compiled for XEmacs 19.14/Emacs 19.29 or later")) Actually, I don't particularly care whether this gets changed since it's for backwards compatibility and such things should be changed sparingly if at all. We can probably make all of this go away. Ur cl-emacs-type => lucid Can we make this print "XEmacs" or "xemacs" instead? There is no Lucid Emacs any more. The policy has been that etc/NEWS doesn't get rewritten and this is in the historical section. Hrvoje, when can we prune the NEWS file and put the oldest historical stuff in etc/HISTORY? I wrote this answer. The whole Q & A can be removed since it deals with how to reduce the size of the installed Lisp tree and has been obsoleted by Lisp packages.