From mboxrd@z Thu Jan 1 00:00:00 1970 X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on inbox.vuxu.org X-Spam-Level: X-Spam-Status: No, score=-1.0 required=5.0 tests=MAILING_LIST_MULTI autolearn=ham autolearn_force=no version=3.4.4 Received: (qmail 16272 invoked from network); 30 Sep 2021 10:40:09 -0000 Received: from minnie.tuhs.org (45.79.103.53) by inbox.vuxu.org with ESMTPUTF8; 30 Sep 2021 10:40:09 -0000 Received: by minnie.tuhs.org (Postfix, from userid 112) id 680FF9CB0C; Thu, 30 Sep 2021 20:40:05 +1000 (AEST) Received: from minnie.tuhs.org (localhost [127.0.0.1]) by minnie.tuhs.org (Postfix) with ESMTP id 10B9D9CAE4; Thu, 30 Sep 2021 20:39:36 +1000 (AEST) Received: by minnie.tuhs.org (Postfix, from userid 112) id 9AFB09CAE4; Thu, 30 Sep 2021 20:39:32 +1000 (AEST) Received: from freefriends.org (freefriends.org [96.88.95.60]) by minnie.tuhs.org (Postfix) with ESMTPS id EE0549CAE3 for ; Thu, 30 Sep 2021 20:39:31 +1000 (AEST) X-Envelope-From: arnold@skeeve.com Received: from freefriends.org (freefriends.org [96.88.95.60]) by freefriends.org (8.14.7/8.14.7) with ESMTP id 18UAdUY3026749 (version=TLSv1/SSLv3 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 30 Sep 2021 04:39:30 -0600 Received: (from arnold@localhost) by freefriends.org (8.14.7/8.14.7/Submit) id 18UAdT0F026748; Thu, 30 Sep 2021 04:39:29 -0600 From: arnold@skeeve.com Message-Id: <202109301039.18UAdT0F026748@freefriends.org> X-Authentication-Warning: frenzy.freefriends.org: arnold set sender to arnold@skeeve.com using -f Date: Thu, 30 Sep 2021 04:39:29 -0600 To: tuhs@minnie.tuhs.org, pnr@planet.nl References: In-Reply-To: User-Agent: Heirloom mailx 12.5 7/5/10 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Subject: [TUHS] Early shared library implementations X-BeenThere: tuhs@minnie.tuhs.org X-Mailman-Version: 2.1.26 Precedence: list List-Id: The Unix Heritage Society mailing list List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: tuhs-bounces@minnie.tuhs.org Sender: "TUHS" Paul Ruizendaal via TUHS wrote: > So far, I have not come across any shared library implementations or > precursors in early Unix prior to SunOS 4. In more or less the same time frame, the AT&T UnixPC / 3B1, which was OEM'ed from Convergent, had shared libraries. This was ~ 1986. I don't know the details of how it worked and how one built the shared libraries; I am sure that it was an independent implementation from Sun's. This was done on top of a System V Release 2 kernel. Later versions of the OS had some bits of the SVR3 user land, but the kernel remained SVR2 based. There is a 3B1 emulator and disk images for it available for anyone who really wants to go back to a system with short filenames and no job control. :-) Arnold