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:to:from:subject:date:message-id:references :mime-version:content-type:content-transfer-encoding; q=dns; s= default; b=q+DBFp0gXkJd2QKKBNiyA6bxRCGwNQTvgCgFtxVAEnhqO05d3RkZm zGfPxMccY4soeMKlO1bwyAHWczqj4wv47sNDBzGGNilO5BYFYfMjJqWz+0V5ofZ5 cqPRusiK1addQ/Zriqo1B1GnjFZlN9jm+Ji2eNKeuKydp63KeM6BlY= 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:to:from:subject:date:message-id:references :mime-version:content-type:content-transfer-encoding; s=default; bh=PE+9osEaPNQ17/Vshp/J/nMUwck=; b=WwVE3hH6ReWYw66C889TDITpgaM8 ymBaWGul8Irc9qJyLZUMhyrhRVqgt8kq2ilKqyDwaIB6WcHfd3N7UkPOqpp+KrGH WwElbnmlQ8VkBJfgcFbC4YBmWgJnYiscMnw97lTzpF0R8euuXtuEn1upyzjiZkr/ Zzyf6JBb9hWJ8SU= 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=-2.6 required=5.0 tests=AWL,BAYES_00,RCVD_IN_DNSWL_LOW,RP_MATCHES_RCVD,SPF_HELO_PASS,SPF_PASS autolearn=ham version=3.3.2 spammy=Konrad, east, sides, H*MI:sk:A45B176 X-HELO: plane.gmane.org To: cygwin AT cygwin DOT com From: Brian Inglis Subject: Re: clock skew detected in archive member Date: Tue, 19 Jul 2016 21:01:26 +0000 (UTC) Lines: 37 Message-ID: References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit User-Agent: Loom/3.14 (http://gmane.org/) X-IsSubscribed: yes Schwarz, Konrad siemens.com> writes: > I am building a project in Cygwin using a GCC/binutils cross-compiler hosted on Windows. > i.e., make and other utilities are from Cygwin; > gcc, ld, ar, etc. are from the cross-compiler toolchain which was compiled natively for Windows. > I consistently see > make[1]: Warning: File 'libmylib.a(myfile.o)' has modification time 3516 s in the future > make[1]: warning: Clock skew detected. Your build may be incomplete. > (The exact time varies somewhat). > The build is indeed incomplete. > I am using the lib(member): form of rule in the Makefile, so make uses the modification time of the member in the archive to see if it needs updating. > As the time is close to an hour and since I am one hour east of GMT, this might be related to a time-zone problem. > If anyone has run across this problem and has some hints for me, I would be most grateful. Are you storing any of your build input or output on a network drive? There can be problems with server<->Windows<->Cygwin conversions of file times from some network servers. Do builds with all files on a local drive for time stamp consistency. Are timezone updates and settings for your Windows and Cygwin environments current and identical e.g. Europe/Berlin or equivalent? make -d will show you what files and times are being compared. Run ls -l and cmd dir, and Windows and Cygwin ar -tv on the inputs and outputs to see what both sides see for file and member timestamps. make -B will force a complete rebuild as a workaround. You may have to find a Windows build of make that handles archive member file times consistently with your Windows cross-ar, and perhaps also a shell for use by make, if build scripts do any explicit time operations. -- 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