Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1033502AbdDTUOx (ORCPT ); Thu, 20 Apr 2017 16:14:53 -0400 Received: from twosheds.infradead.org ([90.155.92.209]:36250 "EHLO twosheds.infradead.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1033211AbdDTUOq (ORCPT ); Thu, 20 Apr 2017 16:14:46 -0400 Message-ID: <1492719277.8404.16.camel@infradead.org> Subject: Re: [PATCH v2 0/3] uapi glibc compat: fix musl libc compatibility From: David Woodhouse To: David Miller , hauke@hauke-m.de Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org, jarod@redhat.com, jogo@openwrt.org, david.heidelberger@ixit.cz, maillist-linux@barfooze.de, mikko.rapeli@iki.fi In-Reply-To: <20170420.160739.1263793303398330801.davem@davemloft.net> References: <20170418210036.26039-1-hauke@hauke-m.de> <20170420.160739.1263793303398330801.davem@davemloft.net> Content-Type: multipart/signed; micalg="sha-256"; protocol="application/x-pkcs7-signature"; boundary="=-4ixbZO7Laf45t4ehiiWP" Date: Thu, 20 Apr 2017 21:14:37 +0100 Mime-Version: 1.0 X-Mailer: Evolution 3.18.5.2-0ubuntu3.1 X-SRS-Rewrite: SMTP reverse-path rewritten from by twosheds.infradead.org. See http://www.infradead.org/rpr.html Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 7904 Lines: 123 --=-4ixbZO7Laf45t4ehiiWP Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable On Thu, 2017-04-20 at 16:07 -0400, David Miller wrote: >=20 > I think I have to put the brakes on this patch series, after much > consideration. >=20 > It does not scale if we continually add a hodge-podge of different > ifdef tests to the UAPI headers in order to prevent mutliple > definitions. >=20 > We will add that IFF_ECHO ifdef for MUSL libc today, and for another > libc we will add another such hack.=C2=A0 And so on and so forth... >=20 > Instead, LIBC implementation must adopt the ifdef protections which > have standard names and are being adopted by GLIBC and hopefully > others. I agree, except I don't think you're going far enough. Those "standard names" you mention... some of this stuff actually depends on __GLIBC__, and *that* isn't right either. 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