From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.org!not-for-mail From: David Kastrup Newsgroups: gmane.emacs.devel Subject: Re: Emacs contributions, C and Lisp Date: Wed, 14 Jan 2015 10:06:58 +0100 Message-ID: <87h9vthgst.fsf@fencepost.gnu.org> References: <54B1B97E.9070204@gmail.com> <87fvbhk4ha.fsf@fencepost.gnu.org> <54B456C8.6010506@gmail.com> <8761cbhvhb.fsf@fencepost.gnu.org> <54B5AA10.7080606@gmail.com> NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: text/plain X-Trace: ger.gmane.org 1421227288 24515 80.91.229.3 (14 Jan 2015 09:21:28 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Wed, 14 Jan 2015 09:21:28 +0000 (UTC) Cc: emacs-devel@gnu.org To: Jacob Bachmeyer Original-X-From: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Wed Jan 14 10:21:23 2015 Return-path: Envelope-to: ged-emacs-devel@m.gmane.org Original-Received: from lists.gnu.org ([208.118.235.17]) by plane.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1YBK8g-0005n8-KR for ged-emacs-devel@m.gmane.org; Wed, 14 Jan 2015 10:21:22 +0100 Original-Received: from localhost ([::1]:45127 helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YBK8f-0006sX-RI for ged-emacs-devel@m.gmane.org; Wed, 14 Jan 2015 04:21:21 -0500 Original-Received: from eggs.gnu.org ([2001:4830:134:3::10]:34961) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YBK8R-0006sR-Lu for emacs-devel@gnu.org; Wed, 14 Jan 2015 04:21:08 -0500 Original-Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1YBK8Q-0001hH-Np for emacs-devel@gnu.org; Wed, 14 Jan 2015 04:21:07 -0500 Original-Received: from fencepost.gnu.org ([2001:4830:134:3::e]:32854) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YBK8Q-0001hD-KM for emacs-devel@gnu.org; Wed, 14 Jan 2015 04:21:06 -0500 Original-Received: from localhost ([127.0.0.1]:40029 helo=lola) by fencepost.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1YBK8Q-0004MG-56; Wed, 14 Jan 2015 04:21:06 -0500 Original-Received: by lola (Postfix, from userid 1000) id 17606E048C; Wed, 14 Jan 2015 10:06:58 +0100 (CET) In-Reply-To: <54B5AA10.7080606@gmail.com> (Jacob Bachmeyer's message of "Tue, 13 Jan 2015 17:28:16 -0600") User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/25.0.50 (gnu/linux) X-detected-operating-system: by eggs.gnu.org: Error: Malformed IPv6 address (bad octet value). X-Received-From: 2001:4830:134:3::e X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.14 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane.org@gnu.org Xref: news.gmane.org gmane.emacs.devel:181246 Archived-At: Jacob Bachmeyer writes: > David Kastrup wrote: >> Jacob Bachmeyer writes: >> >>> Emacs is GPL, so it can call into GCC through Guile with no problem. >>> A proprietary tool doing the same gets dropped right into a copyright >>> quagmire. >>> >> >> Not if it does just the same as Emacs since that means it uses a >> generically useful interface. >> >> > It has been a while since I last read through the FSF GPL FAQs on > this, so maybe copyright has been weakened, but I thought that dynamic > linking does not avoid the GPL. Exactly. And neither does it imply "the GPL", namely the deduction that both programs form an inseparable whole. We are dynamically linking a number of image libraries into Emacs, and do so even at runtime on Windows. That does not mean that they suddenly are licensed differently. > Guile bindings for operations on GCC's GENERIC tree would be broadly > useful, but I thought that they would also be indisputably derived > from GCC, and any program written to use them would likewise be seen > as deriving from GCC? Has this reach of copyright been reduced? Or > have I always been mistaken? I should think the latter. That was the reason for the GCC plugin wars. -- David Kastrup