From owner-freebsd-current@freebsd.org Wed Apr 27 19:45:07 2016 Return-Path: Delivered-To: freebsd-current@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 5A1BEB1FCA5 for ; Wed, 27 Apr 2016 19:45:07 +0000 (UTC) (envelope-from zakharov.vv@gmail.com) Received: from mail-lf0-x241.google.com (mail-lf0-x241.google.com [IPv6:2a00:1450:4010:c07::241]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id D66CE1771 for ; Wed, 27 Apr 2016 19:45:06 +0000 (UTC) (envelope-from zakharov.vv@gmail.com) Received: by mail-lf0-x241.google.com with SMTP id y84so9279025lfc.3 for ; Wed, 27 Apr 2016 12:45:06 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=date:from:to:subject:message-id:mime-version:content-disposition :user-agent; bh=zgvjLg1tyodbzlpxxzCUGrIJSbaV2ihNZKu36Rm11ck=; b=oSQBa6xrgfGday9F3J8obyhk60XyFJPWI4Hv7s5b01QY+5lnuY/tZcGVmhnXD1Nz9n DhaI5TIz1Vl2KDJldrdj5LclXvH+7DgBBcZlpduQBfad+ZI2Qvf/xXvsYQw1vKbxUZPE GVdYFs3y7+1DWCjSqW7YY7XESjaD7DIEOa3aKPKq1I5VIRAf0fGUrbft4Xi/cW8iFeVi zgZcYPNB39RYx+m+TgMz1Jm3mWM+XquZKG+x606S4WuwxWBYdGAb9lCrnF5xX87zpPWg adhiSdK5UspEx16Em3BnplotyBNh+oylofLX6jI+NMuDu3+Ncdy3mTQgvHMHwcoF4m9G mW4g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:date:from:to:subject:message-id:mime-version :content-disposition:user-agent; bh=zgvjLg1tyodbzlpxxzCUGrIJSbaV2ihNZKu36Rm11ck=; b=QYp7z6aMIv13ngUWRMMksLOZQ7z8GneORmcfwoZhoNoUkkgu6mkCdRCvXoMDkqxNXe lpTODAKVyvN5OC1lstljcMU4FZwlL+A2TYEwUqa4zN9v+nGtGsYO3cEk5RhKlcGfHaey Cc8coNnUg+FKmux8ThHh8FiOBYVmXcbDOp728otJ/umbrp/QO8xpu0vMppyzttk0SNOG XrRq7ONFIjuTDzXS1NJkgg9b1ulELw/rna2hezucLXAKivqwqxkGR3+fJ+f8iw8YhFvD enrOD7HH5tq1tHe3LtSFeDIMpPSoalzqJOlRSDm84zMKXeLIOKFdRM45WOLqXe+G6Zm4 SJUw== X-Gm-Message-State: AOPr4FVd+orZbzal1kyZZFbANvKHURdCHhKCs/PALaS4potCZQQHSjy4xacmHQtS961ufQ== X-Received: by 10.25.43.1 with SMTP id r1mr3571741lfr.63.1461786304765; Wed, 27 Apr 2016 12:45:04 -0700 (PDT) Received: from localhost ([91.246.82.203]) by smtp.gmail.com with ESMTPSA id o66sm1062528lfg.32.2016.04.27.12.45.04 for (version=TLS1_2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Wed, 27 Apr 2016 12:45:04 -0700 (PDT) Date: Wed, 27 Apr 2016 22:45:03 +0300 From: Vladimir Zakharov To: freebsd-current@freebsd.org Subject: Question about _POSIX2_VERSION value Message-ID: <20160427194503.GA1483@vzakharov> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline X-Operating-System: FreeBSD 11.0-CURRENT amd64 X-PGP-Key: http://vzakharov.ru/pubkey.asc User-Agent: Mutt/1.6.0 (2016-04-01) X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 27 Apr 2016 19:45:07 -0000 Hello Currently _POSIX2_VERSION is set to 199212L [1]: $ grep _POSIX2_VERSION /usr/src/include/*.h /usr/src/include/unistd.h:#define _POSIX2_VERSION 199212L Unfortunately, I couldn't find any authoritative open source for possible _POSIX2_VERSION values. But, for example, GNU diff uses value 199209 for setting conformity with POSIX 1003.2-1992 standard [2]. Example code from "Advanced Unix Programming" book [3] also uses value 199209. So shouldn't be _POSIX2_VERSION value changed to 199209L? Or even to 200112L (almost 14 years have passed from the commit [1])? 1: https://svnweb.freebsd.org/base?view=revision&revision=103929 2: https://www.gnu.org/software/diffutils/manual/html_node/Standards-conformance.html 3: http://basepath.com/aup/ex/ckstdvers_8c-source.html -- Regards, | "In theory there is no difference between theory Vladimir Zakharov | and practice. In practice there is."- Yogi Berra