From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.ciao.gmane.io!not-for-mail From: Drew Adams Newsgroups: gmane.emacs.devel Subject: RE: :alnum: broken? 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List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Original-Sender: "Emacs-devel" Xref: news.gmane.io gmane.emacs.devel:245167 Archived-At: > > [...] I want my files to be 100% > > warning-free. >=20 > Yeah, optimally one would! No, not necessarily. Not if a file is intended to support multiple releases and that means having conditional code that can use "obsolete" constructs in some branches, for the benefit of an older release.