X-Recipient: archive-cygwin AT delorie DOT com X-SWARE-Spam-Status: No, hits=-10.2 required=5.0 tests=AWL,BAYES_00,KHOP_PGP_SIGNED,KHOP_RCVD_UNTRUST,KHOP_THREADED,RCVD_IN_DNSWL_HI,RCVD_IN_HOSTKARMA_W,SPF_HELO_PASS,TW_LV,TW_PH,T_RP_MATCHES_RCVD X-Spam-Check-By: sourceware.org Message-ID: <50003768.8010200@redhat.com> Date: Fri, 13 Jul 2012 08:57:44 -0600 From: Eric Blake User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:13.0) Gecko/20120615 Thunderbird/13.0.1 MIME-Version: 1.0 To: cygwin AT cygwin DOT com, "bug-autoconf AT gnu DOT org" Subject: Re: test -f //dot References: <500008DB DOT 9030604 AT codeplay DOT com> In-Reply-To: <500008DB.9030604@codeplay.com> OpenPGP: url=http://people.redhat.com/eblake/eblake.gpg Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="------------enigAEB2F7B38F582D30905DC24E" X-IsSubscribed: yes 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 --------------enigAEB2F7B38F582D30905DC24E Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: quoted-printable [adding bug-autoconf] On 07/13/2012 05:39 AM, Paul Keir wrote: > Hi, >=20 > While running configure on llvm I get a hang on: >=20 > ... > checking for Graphviz... echo Graphviz > checking for dot... >=20 > The configure script has a line starting: > if { test -f "$as_dir/$ac_word$ac_exec_ext" && ... >=20 > The problem occurs when $as_dir is / >=20 > test -f //dot >=20 > ...also hangs (at least 15 mins.). I tested it on Linux and another > cygwin machine, and test returns promptly there. This is probably worth fixing in upstream autoconf (although it won't benefit you on cygwin until autoconf 2.70 is released and used by packages), to have autoconf's code that generates a PATH lookup to special case $as_dir of / to avoid creating //. Patches welcome to autoconf, if I don't get it done first. --=20 Eric Blake eblake AT redhat DOT com +1-919-301-3266 Libvirt virtualization library http://libvirt.org --------------enigAEB2F7B38F582D30905DC24E Content-Type: application/pgp-signature; name="signature.asc" Content-Description: OpenPGP digital signature Content-Disposition: attachment; filename="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) Comment: Public key at http://people.redhat.com/eblake/eblake.gpg Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org/ iQEcBAEBCAAGBQJQADdoAAoJEKeha0olJ0NqOggH/0pQWtVF79pXK+jLLwqmfdKU XPR1Yk1xfPzYgSYkRVUeLrdhIkGaIoDeBI7Z7dgPu7rSziQXcD1ucTg2SNXp8XtM eR978UxvGzNMWoGIsoPVu2qzac0mgYsCxUVCDkMkmXqm7sMqJ/41XmKDLTHz+bu0 Iw2kG1vcOMhuQT1IXhLBZRt2SjLJHTx9FaHrXQ0gr/Bb7WHaoMAjNIesjGI0ggsQ vDUGvO2fAVkZEnpNav2Nh+ipBCFVO/BarZ+/wxH8QklfvTfSek67+wtoGMXKNj0y Oxg5ObSlow9X4rBLgC1zREBnFJ3fwtvUkwwJDyHEDBDgyKQ+hiYNFpx52fgclxs= =+sqU -----END PGP SIGNATURE----- --------------enigAEB2F7B38F582D30905DC24E--