X-Recipient: archive-cygwin AT delorie DOT com X-SWARE-Spam-Status: No, hits=3.4 required=5.0 tests=AWL,BAYES_20,T_RP_MATCHES_RCVD X-Spam-Check-By: sourceware.org Message-ID: <4F5643B8.2040708@caris.com> Date: Tue, 06 Mar 2012 13:04:56 -0400 From: Edgar Ellis User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:10.0.2) Gecko/20120216 Thunderbird/10.0.2 MIME-Version: 1.0 To: cygwin AT cygwin DOT com Subject: Re: 1.7.10 : output from .NET programs does not get through pipeline Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit 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 > Hi all, > > I started observing some very strange effects when launching .NET > programs from cygwin, after upgrading to version 1.7.10. > The example below is using the MSBuild.exe as an example, but I get > analogous results with any console program compiled for .NET. > One can see that each pipeline works normally exactly once. The > second time the pipe does not bring anything. > I do not know if it is possible to reset it; killing all cygwin > processes and logging off apparently does not help. > > $ MSBuild.exe -version > Microsoft (R) Build Engine Version 3.5.30729.1 > [Microsoft .NET Framework, Version 2.0.50727.3625] > Copyright (C) Microsoft Corporation 2007. All rights reserved. > > 3.5.30729.1 > > $ MSBuild.exe -version | head -1 > Microsoft (R) Build Engine Version 3.5.30729.1 > > $ MSBuild.exe -version | head -1 > > $ MSBuild.exe -version | wc > 4 20 177 > > $ MSBuild.exe -version | wc > 0 0 0 > Hi, I hit the same issue with msbuild and was able to work around it by doing a pipe in cmd.exe, eg: $ cmd.exe '/c' 'msbuild.exe -version' | wc 0 0 0 $ cmd.exe '/c' 'msbuild.exe -version | cat' | wc 4 20 183 - Edgar > One program that surprisingly does not get broken so easily is "perl" > > $ MSBuild.exe -version | perl -ne print | wc > 4 20 177 > > $ MSBuild.exe -version | perl -ne print | wc > 4 20 177 > > Output from normal DOS, windows and cygwin programs is not affected. > > Output redirection with ">" works as usual. > > Command substitution with $( ) or ` ` does not work if the output > comes from .NET program: > > $ echo +++ `MSBuild /help` +++ > +++ +++ > > $ echo +++ `MSBuild.exe /help>tmp.tmp ; dos2unix tmp.tmp; head tmp.tmp` +++ > dos2unix: converting file tmp.tmp to Unix format ... > +++ Microsoft (R) Build Engine Version 3.5.30729.1 [Microsoft .NET > Framework, Version 2.0.50727.3625] Copyright (C) Microsoft Corporation > 2007. All rights reserved. Syntax: MSBuild.exe [options] [project > file] Description: Builds the specified targets in the project file. > If a project file is not specified, MSBuild searches the current > working directory for a file that has a file extension that ends in > "proj" and uses that file. +++ > > I get similar results on other computers running Windows XP, Vista and > 7 with 1.7.10 installed, but not with 1.7.9. > > Have you seen anything like this? How can it be fixed? > > Regards > Ilya Beylin -- 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