From mboxrd@z Thu Jan 1 00:00:00 1970 Path: news.gmane.io!.POSTED.blaine.gmane.org!not-for-mail From: Philipp Stephani Newsgroups: gmane.emacs.bugs Subject: bug#47951: 28.0.50; Recent seccomp changes break compilation in Docker Date: Thu, 22 Apr 2021 16:17:32 +0200 Message-ID: References: <87fsziww7p.fsf@meril-lin-7rvk493.corp.improbable.io> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Injection-Info: ciao.gmane.io; posting-host="blaine.gmane.org:116.202.254.214"; logging-data="35503"; mail-complaints-to="usenet@ciao.gmane.io" Cc: 47951@debbugs.gnu.org To: me@mpsq.org Original-X-From: bug-gnu-emacs-bounces+geb-bug-gnu-emacs=m.gmane-mx.org@gnu.org Thu Apr 22 16:18:28 2021 Return-path: Envelope-to: geb-bug-gnu-emacs@m.gmane-mx.org Original-Received: from lists.gnu.org ([209.51.188.17]) by ciao.gmane.io with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.92) (envelope-from ) id 1lZaA0-0008wR-2Z for geb-bug-gnu-emacs@m.gmane-mx.org; Thu, 22 Apr 2021 16:18:28 +0200 Original-Received: from localhost ([::1]:48572 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lZa9z-0000Wp-41 for geb-bug-gnu-emacs@m.gmane-mx.org; 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Apr. 2021 um 15:44 Uhr schrieb : > > > Hi, > > Since the recent changes introduced by Philipp Stephani on seccomp (around > commit be8328acf9aa464f848e682e63e417a18529af9e), compiling Emacs from within a > Docker container fails. > > The reported error is: > > seccomp-filter.c:168:11: error: static_assert expression is not an integral constant expression > verify ((uintptr_t) NULL == 0); > ~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~ > ../lib/verify.h:273:32: note: expanded from macro 'verify' > # define verify(R) _GL_VERIFY (R, "verify (" #R ")", -) > ~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~ > ../lib/verify.h:213:57: note: expanded from macro '_GL_VERIFY' > # define _GL_VERIFY(R, DIAGNOSTIC, ...) _Static_assert (R, DIAGNOSTIC) > ^ > seccomp-filter.c:168:11: note: cast that performs the conversions of a reinterpret_cast is not allowed in a constant expression Looks like the compiler is right, and mine is a bit too lenient. I've hopefully fixed this with commit aaf6b6bf80805d18180e1c16350e9473716f5915.