X-Recipient: archive-cygwin AT delorie DOT com DomainKey-Signature: a=rsa-sha1; c=nofws; d=sourceware.org; h=list-id :list-unsubscribe:list-subscribe:list-archive:list-post :list-help:sender:subject:to:references:from:message-id:date :mime-version:in-reply-to:content-type :content-transfer-encoding; q=dns; s=default; b=n5vGslaTafbjuscr 1DPEN3lKS+Ek17+jBsnVXrARHpDFqOlLbKEplv+Ee1ZobJgtt0JyKeLOPL8ZWurK e0PW2q0c/v++ZRerFDEEJcUp/4KNpj4ABXFBLag/7mX8Csr+JXfPHij6VjpPa8w3 Ng2SRhjcFgBlg1/gPRwOujtsqNQ= DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=sourceware.org; h=list-id :list-unsubscribe:list-subscribe:list-archive:list-post :list-help:sender:subject:to:references:from:message-id:date :mime-version:in-reply-to:content-type :content-transfer-encoding; s=default; bh=t/8NbRjPJKpS1eu8YxMw5Z 953+Y=; b=F3dg8N6+0Wpmp4Ud5oZ7Omfc7OBGyzumEEijp1oREL1ziSVSo5etb+ 49aeDoyblJmgOkLk2Lq14V5qOwAWDq+pocOfrTYMuhoPO9v+6AMos37+mK0zSrpM maIywugv4dJR1YmsviL2Tx94mas9eZgs2ONAXpY2KHz6GdUAyh4N0= Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner AT cygwin DOT com Mail-Followup-To: cygwin AT cygwin DOT com Delivered-To: mailing list cygwin AT cygwin DOT com Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-0.0 required=5.0 tests=AWL,BAYES_05,RCVD_IN_DNSWL_LOW autolearn=ham version=3.3.2 spammy=sk:listsd, obstacles, H*MI:sk:ff5f5b2, H*f:sk:ff5f5b2 X-HELO: nm22-vm4.access.bullet.mail.gq1.yahoo.com X-Yahoo-SMTP: mjD.OBqswBAPbVUxYJaYPvc61jLEnpq8VnBwJGdbEJOPA9xw Subject: Re: Deterministic builds To: cygwin AT cygwin DOT com References: From: Greg Chicares Message-ID: <572A0778.3080509@sbcglobal.net> Date: Wed, 4 May 2016 14:30:16 +0000 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Icedove/38.6.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit X-IsSubscribed: yes On 2016-05-04 13:38, Ken Brown wrote: > Is it possible to build an executable on Cygwin so that subsequent > builds (with no change in source) produce identical results? Currently, > the timestamp embedded in executables prevents this. (I don't know if > that's the only obstacle.) '-fno-guess-branch-probability' removes one potential obstacle: https://lists.debian.org/debian-devel/2005/02/msg01154.html I don't know if there are other obstacles than these. -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple