From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from smtp-out-so.shaw.ca (smtp-out-so.shaw.ca [64.59.136.137]) by sourceware.org (Postfix) with ESMTPS id 928D63858D35 for ; Fri, 7 Aug 2020 04:57:12 +0000 (GMT) DMARC-Filter: OpenDMARC Filter v1.3.2 sourceware.org 928D63858D35 Authentication-Results: sourceware.org; dmarc=none (p=none dis=none) header.from=SystematicSw.ab.ca Authentication-Results: sourceware.org; spf=none smtp.mailfrom=brian.inglis@systematicsw.ab.ca Received: from [192.168.1.104] ([24.64.172.44]) by shaw.ca with ESMTP id 3uQykLJpaYYpx3uR8kUsNo; Thu, 06 Aug 2020 22:57:11 -0600 X-Authority-Analysis: v=2.3 cv=OubUNx3t c=1 sm=1 tr=0 a=kiZT5GMN3KAWqtYcXc+/4Q==:117 a=kiZT5GMN3KAWqtYcXc+/4Q==:17 a=IkcTkHD0fZMA:10 a=w_pzkKWiAAAA:8 a=JZeu4sPTHj9YQVegERsA:9 a=QEXdDO2ut3YA:10 a=CK4ackeeyIsA:10 a=sRI3_1zDfAgwuvI8zelB:22 Reply-To: cygwin@cygwin.com Subject: Re: Developing for Cygwin from POSIX host To: cygwin@cygwin.com References: <9076494.QnH3kWR8HF@t450> From: Brian Inglis Autocrypt: addr=Brian.Inglis@SystematicSw.ab.ca; prefer-encrypt=mutual; keydata= mDMEXopx8xYJKwYBBAHaRw8BAQdAnCK0qv/xwUCCZQoA9BHRYpstERrspfT0NkUWQVuoePa0 LkJyaWFuIEluZ2xpcyA8QnJpYW4uSW5nbGlzQFN5c3RlbWF0aWNTdy5hYi5jYT6IlgQTFggA PhYhBMM5/lbU970GBS2bZB62lxu92I8YBQJeinHzAhsDBQkJZgGABQsJCAcCBhUKCQgLAgQW AgMBAh4BAheAAAoJEB62lxu92I8Y0ioBAI8xrggNxziAVmr+Xm6nnyjoujMqWcq3oEhlYGAO WacZAQDFtdDx2koSVSoOmfaOyRTbIWSf9/Cjai29060fsmdsDLg4BF6KcfMSCisGAQQBl1UB BQEBB0Awv8kHI2PaEgViDqzbnoe8B9KMHoBZLS92HdC7ZPh8HQMBCAeIfgQYFggAJhYhBMM5 /lbU970GBS2bZB62lxu92I8YBQJeinHzAhsMBQkJZgGAAAoJEB62lxu92I8YZwUBAJw/74rF IyaSsGI7ewCdCy88Lce/kdwX7zGwid+f8NZ3AQC/ezTFFi5obXnyMxZJN464nPXiggtT9gN5 RSyTY8X+AQ== Organization: Systematic Software Message-ID: <7d145537-d982-617c-7f2d-bb047a9d782b@SystematicSw.ab.ca> Date: Thu, 6 Aug 2020 22:56:47 -0600 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:68.0) Gecko/20100101 Thunderbird/68.11.0 MIME-Version: 1.0 In-Reply-To: <9076494.QnH3kWR8HF@t450> Content-Type: text/plain; charset=utf-8 Content-Language: en-CA Content-Transfer-Encoding: 7bit X-CMAE-Envelope: MS4wfK85mJOAwyWChb1zJPEESgRla5MtlhKeIMDXbke6ULED5mK/z1IP3elZvTV7VcZRnKsfroALqxz9rkMdO7Y+Mb5fOt7lj2QdffBaLfSEBKcTiUqTN3Is NIOsmuRUA/u/l9HK4ixmNTHywok0QqHnTd99qTKg52tpyEJyPKQ9bRXD5saQCt+S4asjppFzR9Dn0w== X-Spam-Status: No, score=-8.6 required=5.0 tests=BAYES_00, KAM_DMARC_STATUS, KAM_LAZY_DOMAIN_SECURITY, NICE_REPLY_A, RCVD_IN_DNSWL_LOW, SPF_HELO_NONE, SPF_NONE, TXREP autolearn=ham autolearn_force=no version=3.4.2 X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on server2.sourceware.org X-BeenThere: cygwin@cygwin.com X-Mailman-Version: 2.1.29 Precedence: list List-Id: General Cygwin discussions and problem reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 07 Aug 2020 04:57:15 -0000 On 2020-08-06 19:58, John Scott via Cygwin wrote: > I'm writing an application in C that's increasingly dependent on the POSIX > APIs and would like to use the Cygwin DLL to help port it to Windows. I > currently use MinGW-w64 but foresee that will stop being sufficient eventually. > > I want to do this using only free software without a Windows installation. A > GNU/Linux to Cygwin cross compiler doesn't seem available, at least on Debian. > Cygwin also fails to run under Wine. Should work as there are fixes in each for the other. > I'm not interested in the Cygwin userspace, I just need the POSIX layer. Aside > from booting up a ReactOS VM, is there a more clean way to do what I seek to > do? There's a Fedora->Cygwin cross environment documented in: https://cygwin.com/pipermail/cygwin/2020-July/245695.html or your local copy from July 27-28. -- Take care. Thanks, Brian Inglis, Calgary, Alberta, Canada This email may be disturbing to some readers as it contains too much technical detail. Reader discretion is advised. [Data in IEC units and prefixes, physical quantities in SI.]