X-Recipient: archive-cygwin@delorie.com X-SWARE-Spam-Status: No, hits=-1.8 required=5.0 tests=AWL,BAYES_00,TW_YG,T_RP_MATCHES_RCVD X-Spam-Check-By: sourceware.org Content-Class: urn:content-classes:message MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Subject: RE: ATTN: Perl maintainer - RE: Problem with Perl/Tk and Pixmap Date: Wed, 22 Dec 2010 13:49:37 -0600 Message-ID: <786EBDA1AC46254B813E200779E7AD360149EE78@srv1163ex1.flightsafety.com> In-Reply-To: References: <20101216190751.GA3017@ford.loewis.de> <786EBDA1AC46254B813E200779E7AD360149EE47@srv1163ex1.flightsafety.com> From: "Thrall, Bryan" To: X-IsSubscribed: yes Mailing-List: contact cygwin-help@cygwin.com; run by ezmlm Precedence: bulk List-Id: List-Unsubscribe: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner@cygwin.com Mail-Followup-To: cygwin@cygwin.com Delivered-To: mailing list cygwin@cygwin.com Reini Urban wrote on 2010-12-22:=20 > 2010/12/22 Thrall, Bryan: >> Thrall, Bryan wrote on 2010-12-16: >>> Andrew DeFaria wrote on 2010-12-16: >>>> =A0 On 12/16/2010 02:07 PM, Johannes v. L=F6wis wrote: >>>>> I have a Perl/Tk script that is supposed to show a pixmap on the >>>>> left side of the title bar of the main window. It works on Linux and >>>>> on a rather old version of Cygwin 1.5. On Cygwin 1.7 (on XP Home and >>>>> Prof) the following happens: >>>>>=20 >>>>> $ ./logotest.pl Can't bless non-reference value at >>>>> /usr/lib/perl5/vendor_perl/5.10/i686-cygwin/Tk/Image.pm line 23. ... >>>>> Any ideas or suggestions what further information I could provide in >>>>> order to sort this out? >>>>>=20 >>>> Reproduced. Note you problem appears to be with Tk::Image, not with >>>> Cygwin, though you are right in that it works on Linux and complains >>>> and dies on Cygwin. >>>>=20 >>>> Interestingly, if you run your program and the Perl debugger (i.e. >>>> perl -d logtest.pl) then simply type c for continue it works fine. >>>>=20 >>>> Looking at Image.pm I see that if I break at Image.pm:23 there's a >>>> "return bless $obj,$package" statement. In the debugger, $obj is >>>> defined and there's no problem. If, however, I just run this without >>>> the debugger, but put some print statements in Image.pm, I see that >>>> $obj is indeed returned from $widget->Tk::image as undefined. >>>>=20 >>>> This appears to be a Perl/Tk bug. >>>>=20 >>>> Even stranger! Change your >>>>=20 >>>> =A0 =A0$mw->Pixmap('logo', -data=3D>$icon); >>>> to >>>>=20 >>>> =A0 =A0my $foo $mw->Pixmap('logo', -data=3D>$icon); >>>> and it works! So you have =A0a work around, and a bug to report. >>>=20 >>> I also can reproduce the problem. >>>=20 >>> This behavior reminds me of a perl-Tk packaging bug from last year: >>>=20 >>> http://www.cygwin.com/ml/cygwin/2009-07/msg00890.html >>>=20 >>> In fact, /usr/bin/widget seems to be broken again, unless you run it >>> in the perl debugger: >>>=20 >>> thrall@pc1163-8413-xp ~ >>> $ /usr/bin/widget >>> Can't set -labelFont to `Courier 12 bold' for >>> Tk::LabEntry=3DHASH(0x1067dac0): unknown option "-labelFont" at >>> /usr/lib/perl5/vendor_perl/5.10/i686-cygwin/Tk/Derived.pm line 294. >>>=20 >>> =A0at /usr/lib/perl5/vendor_perl/5.10/i686-cygwin/Tk/Derived.pm line 306 >>> thrall@pc1163-8413-xp ~ $ cygcheck -cd perl perl-Tk Cygwin Package >>> Information Package =A0 =A0 =A0 =A0 =A0 =A0 =A0Version cygwin =A0 =A0 = =A0 =A0 =A0 =A0 =A0 1.7.7-1 >>> perl =A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0 5.10.1-4 perl-Tk =A0 =A0 =A0 =A0 = =A0 =A0 =A0804.029-1 >>>=20 >>=20 >> It seems I have unfairly blamed Perl-Tk for these problems; reverting > to perl-5.10.1-3 fixes both the OP's Pixmap problem and the widget > problem on my machine. >=20 > I hear. > Known problem with certain XS modules. >=20 > With -4 I had to recompile core and all XS modules and apparently some > old modules are not binary compatible anymore, although the > configuration did not change. Only the environment did change. >=20 > The solution is to recompile the failing XS modules or revert perl back > to -3 > perl-Tk would need an upgrade against -4. I'm just glad to have a workaround :) Thanks for the explanation! -- Bryan Thrall FlightSafety International bryan.thrall@flightsafety.com =A0=20 -- 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