From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 45017 invoked by alias); 17 Mar 2015 00:34:36 -0000 Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner@cygwin.com Mail-Followup-To: cygwin@cygwin.com Received: (qmail 44946 invoked by uid 89); 17 Mar 2015 00:34:35 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=1.1 required=5.0 tests=AWL,BAYES_00,FREEMAIL_ENVFROM_END_DIGIT,FREEMAIL_FROM,KAM_FROM_URIBL_PCCC,RCVD_IN_DNSWL_LOW,SPF_PASS,URIBL_SBL autolearn=no version=3.3.2 X-HELO: mail-la0-f41.google.com Received: from mail-la0-f41.google.com (HELO mail-la0-f41.google.com) (209.85.215.41) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with (AES128-GCM-SHA256 encrypted) ESMTPS; Tue, 17 Mar 2015 00:34:34 +0000 Received: by lamx15 with SMTP id x15so54332679lam.3 for ; Mon, 16 Mar 2015 17:34:30 -0700 (PDT) X-Received: by 10.152.120.8 with SMTP id ky8mr55501467lab.118.1426552470481; Mon, 16 Mar 2015 17:34:30 -0700 (PDT) Received: from [192.168.4.39] (broadband-95-84-200-6.nationalcablenetworks.ru. [95.84.200.6]) by mx.google.com with ESMTPSA id h3sm2491068lam.49.2015.03.16.17.34.29 for (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128); Mon, 16 Mar 2015 17:34:29 -0700 (PDT) To: cygwin@cygwin.com Subject: Changes in process spawning break perl system() function From: LRN message-id: <5507768E.20108@gmail.com> Date: Tue, 17 Mar 2015 04:52:00 -0000 user-agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:39.0) Gecko/20100101 Thunderbird/39.0a1 mime-version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha1; protocol="application/pgp-signature"; boundary="iu3UNA4TQ8wJvp9hM03CJxoEBCRNPHl8e" X-IsSubscribed: yes X-SW-Source: 2015-03/txt/msg00271.txt.bz2 --iu3UNA4TQ8wJvp9hM03CJxoEBCRNPHl8e Content-Type: multipart/mixed; boundary="------------060100040605080304060608" This is a multi-part message in MIME format. --------------060100040605080304060608 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: quoted-printable Content-length: 1229 How to reproduce: 1) create a shell script (say, /usr/bin/shellscript) containing this: #!/bin/sh echo ${0##*/} 2) create a symlink (say, /usr/bin/asymlink) that points to shellscript 3) create a perl script (say, /usr/bin/perlscript) containing this: #! /usr/bin/perl -w system '/usr/bin/asymlink'; 4) run /usr/bin/perlscript Expected results: "asymlink" should be echoed by the shellscript when it is run by perlscript Actual results: "shellscript" is echoed instead This affects 1.7.35. I've tried various cygwin dll snapshots, everything is fine (symlink name is echoed) with cygwin1-20150210.dll, cygwin1-20150211.dll breaks things first= (a full DOS path to shellscript is echoed), then from cygwin1-20150215.dll and onward the target script name is echoed, as described above. Symlink can be a Cygwin symlink or a native symlink, doesn't matter. The use-case for this is autoconf wrapper (a shell script) that is being ru= n by autoreconf (a perl script) and uses the contents of $0 to find different versions of autoconf, expecting $0 to be something like /usr/bin/autoconf, = but getting things like /usr/share/autotools/ac-wrapper.sh instead. --=20 O< ascii ribbon - stop html email! - www.asciiribbon.org --------------060100040605080304060608 Content-Type: application/pgp-keys; name="0x922360B0.asc" Content-Transfer-Encoding: quoted-printable Content-Disposition: attachment; filename="0x922360B0.asc" Content-length: 1839 -----BEGIN PGP PUBLIC KEY BLOCK-----=0A= Version: GnuPG v1.4.11 (MingW32)=0A= =0A= mQENBE48DHkBCADjAv/EeFMN+i5XDN2WjSBU/yHbJlIG93/Hpj7Hee65qr82O9us=0A= n3t4W1bk2+YwGBrFdfVlesHF4DObckXveayC+IulVvTJwZhR8igVENvWjIo6oF1N=0A= 1B3GV/c8zVCnHdkF0+vYJ9akX6DZf8KvBqKZapK1kc3tll0o+kS9lwNfpWRarUpQ=0A= SBTw2uq+FUEsO3pwVAyvwom4b7AB6fz1tpyl28dOaNDKr2W55ZDPC8aM5PPe/kiH=0A= n3ylOwpgXYqZLhIyJStqL/KcZ76y8o/gDXnilFRLwXu9CbXjapo7MARXByuSVMfb=0A= PHa3XNj5JCzlv4GhEF4HOp4qoVRk8YASTqf/ABEBAAG0F0xSTiA8bHJuMTk4NkBn=0A= bWFpbC5jb20+iQE9BBMBAgAnAhsjBQkJZgGAAh4BAheABQJT5qxpBQsJCAcDBRUK=0A= CQgLBRYCAwEAAAoJEOs4Jb6SI2CwBNMIAKu3L9CGoTlJHZ/0G5AbbcP9zeiIkKkN=0A= yvi1XszHiDz1kaESQYjpDsEWeHQutEhmnK5DNRyA6VV7Tcc49+1luq5Uf1kb8gGr=0A= 2mbF+eLG0Rv/WGoi/Aa4eH7K9dH2BSOUn+eX3Ft/HbBp9ZWCBRnABuO4oKmS+zfd=0A= O9wMaQJkRRnwo151TNVMpWIO/kE7t4YeJyV/fUdYsMzlH53hzXnCM5DQ3ovje7NI=0A= 0prrSaqrthS0W5ELKZnb7PDY7pII0xh5/+u+f9Vs0mdMjvYZT42DiJnHvtfLEo1h=0A= 7KwLkC1lltZ/eaQOKFAszDzi2KoilSY/29mK7wLCd1TFJjklJNQqyxu5AQ0ETjwM=0A= eQEIAKpvqHog2hpurRnsF6IKQtqR7JXYie9mvNoPW7XWmN3TtkHp5zrUG4SkR4dU=0A= CTXxO82kMlwC94s79YJNTr30fahW6BVe72aZ+1D5qJcHk0CeHj56lri2kPOxyZXo=0A= 19Rhw43YtGZNvkNOg5xmMIzxUbMnxRTSppEFi0YQ+cCjnQksHiQPcCsb5bow53Ii=0A= M9pICELT0d3nB5iDFCQb3oiXdRitDJJtZ97vOUE+xpUeYTcHXZyLmXYyMA7cFa/b=0A= wRwj/5xofXYE0WlnHDn+0QOTf1BOGaWH1eZqYYBVKegKXW65Y7UOU4f0pZQUQ+FQ=0A= wbwnSDlFuJPKA5MDgDczqtAVtNsAEQEAAYkBJQQYAQIADwUCTjwMeQIbDAUJCWYB=0A= gAAKCRDrOCW+kiNgsJ2FCACaycPmmvwar2FwTbT+/OFM9rt9KQ6JCldNSePGNzHE=0A= k0WBu5HyzgGcuOqoQSIwPHGnu2zkZl0PMW/WW9648a4OBuK08zNmypHXQw3fG0nG=0A= KNsO6j86tOLINS6p/P4vMcF8Fz6ZdIwSj8oXnuku0C0nkLB/ja/VZk1wcI30ulJF=0A= A2EhgLWIXZaTBlWR4KitGiGL7yzpUzBarPE8YFZLF+rfqu7NlxeG3NbBA/5UmH6r=0A= FL5Cva/ajOJW2CtGyuROTYhqBfolxZtfSHHj1wOAlc+dA0utIW4NDbIyZxCoxDTF=0A= /lUIjgj/Xu0IRIsX5m6TbBl40LH81JI0g1750FJfP4de=0A= =3DaWCf=0A= -----END PGP PUBLIC KEY BLOCK-----=0A= --------------060100040605080304060608-- --iu3UNA4TQ8wJvp9hM03CJxoEBCRNPHl8e Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" Content-length: 488 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (MingW32) iQEcBAEBAgAGBQJVB3aTAAoJEOs4Jb6SI2CwnPQH/ixDr270UhaQcWZpOcp1fypz JrIEe7y9iXaRg2HOz7O+0yYNtRJTK9aMMZFGMNOCRZ9fUyvAadUl+rMzZDVe7/ZH swfLZykxoPOqL6USogIkYHibdkZrl1fC5sZygAlZB2bhtb9wcwxn8r1GqEtQ+RzW eoybGaqa6qr/MzIvpju9r+35A+2/x8GUMYn3Rd4AXpOcmQCqd3SaCInFnDNRvoIp AjjEieRAc1NXxPNrfnKFJB5Q4TXOiZRKSu+3U2gujJVOP0N5s5vVjP+bsqz/4bwS Izfmk1Kyu9ZOyf285ubCXPLzYfcho1pgbid0u5O+0JRmjpuYTZEsgarblh6cmYQ= =SPXe -----END PGP SIGNATURE----- --iu3UNA4TQ8wJvp9hM03CJxoEBCRNPHl8e--