From owner-freebsd-hackers@freebsd.org Tue May 23 07:33:37 2017 Return-Path: Delivered-To: freebsd-hackers@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 34FBDD7AABB for ; Tue, 23 May 2017 07:33:37 +0000 (UTC) (envelope-from sebastian.huber@embedded-brains.de) Received: from dedi548.your-server.de (dedi548.your-server.de [85.10.215.148]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id E6BC51475 for ; Tue, 23 May 2017 07:33:36 +0000 (UTC) (envelope-from sebastian.huber@embedded-brains.de) Received: from [88.198.220.132] (helo=sslproxy03.your-server.de) by dedi548.your-server.de with esmtpsa (TLSv1.2:DHE-RSA-AES256-GCM-SHA384:256) (Exim 4.85_2) (envelope-from ) id 1dD4Js-0006pq-CJ for freebsd-hackers@freebsd.org; Tue, 23 May 2017 09:33:28 +0200 Received: from [82.135.62.35] (helo=mail.embedded-brains.de) by sslproxy03.your-server.de with esmtpsa (TLSv1.2:DHE-RSA-AES256-GCM-SHA384:256) (Exim 4.84_2) (envelope-from ) id 1dD4Js-0003rF-1o for freebsd-hackers@freebsd.org; Tue, 23 May 2017 09:33:28 +0200 Received: from localhost (localhost.localhost [127.0.0.1]) by mail.embedded-brains.de (Postfix) with ESMTP id 0FAE42A0929 for ; Tue, 23 May 2017 09:34:09 +0200 (CEST) Received: from mail.embedded-brains.de ([127.0.0.1]) by localhost (zimbra.eb.localhost [127.0.0.1]) (amavisd-new, port 10032) with ESMTP id vBzmkK5Br9m0 for ; Tue, 23 May 2017 09:34:08 +0200 (CEST) Received: from localhost (localhost.localhost [127.0.0.1]) by mail.embedded-brains.de (Postfix) with ESMTP id 9E7572A092A for ; Tue, 23 May 2017 09:34:08 +0200 (CEST) X-Virus-Scanned: amavisd-new at zimbra.eb.localhost Received: from mail.embedded-brains.de ([127.0.0.1]) by localhost (zimbra.eb.localhost [127.0.0.1]) (amavisd-new, port 10026) with ESMTP id kHAG6uZq_jx8 for ; Tue, 23 May 2017 09:34:08 +0200 (CEST) Received: from [192.168.96.129] (unknown [192.168.96.129]) by mail.embedded-brains.de (Postfix) with ESMTPSA id AF7CC2A0929 for ; Tue, 23 May 2017 09:34:07 +0200 (CEST) To: FreeBSD From: Sebastian Huber Subject: Why is _POSIX_SOURCE used instead of __BSD_VISIBLE in ? Message-ID: <742294fc-99db-3f9c-17a6-9aee7f42b066@embedded-brains.de> Date: Tue, 23 May 2017 09:33:25 +0200 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.1.1 MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8; format=flowed Content-Language: en-GB Content-Transfer-Encoding: quoted-printable X-Authenticated-Sender: smtp-embedded@poldinet.de X-Virus-Scanned: Clear (ClamAV 0.99.2/23409/Tue May 23 02:57:08 2017) X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 23 May 2017 07:33:37 -0000 Hello, the Termios header , , etc. use sometimes=20 _POSIX_SOURCE directly to determine if a thing should be exposed to the=20 user, e.g. #ifndef _POSIX_SOURCE #define ONLCR 0x00000002 /* map NL to CR-NL (ala CRMOD) */ #define TABDLY 0x00000004 /* tab delay mask */ #define TAB0 0x00000000 /* no tab delay and=20 expansion */ #define TAB3 0x00000004 /* expand tabs to spaces */ #define ONOEOT 0x00000008 /* discard EOT's (^D) on output) *= / #define OCRNL 0x00000010 /* map CR to NL on output */ #define ONOCR 0x00000020 /* no CR output at column 0 */ #define ONLRET 0x00000040 /* NL performs CR function */ #endif /*_POSIX_SOURCE */ This circumvents the feature mechanisms of . Why is=20 __BSD_VISIBLE not used for this? --=20 Sebastian Huber, embedded brains GmbH Address : Dornierstr. 4, D-82178 Puchheim, Germany Phone : +49 89 189 47 41-16 Fax : +49 89 189 47 41-09 E-Mail : sebastian.huber@embedded-brains.de PGP : Public key available on request. Diese Nachricht ist keine gesch=C3=A4ftliche Mitteilung im Sinne des EHUG= .