From unknown Fri Aug 15 20:46:55 2025 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-Mailer: MIME-tools 5.509 (Entity 5.509) Content-Type: text/plain; charset=utf-8 From: bug#8324 <8324@debbugs.gnu.org> To: bug#8324 <8324@debbugs.gnu.org> Subject: Status: Emacs 23.3 for W32 and libpng: update documentation Reply-To: bug#8324 <8324@debbugs.gnu.org> Date: Sat, 16 Aug 2025 03:46:55 +0000 retitle 8324 Emacs 23.3 for W32 and libpng: update documentation reassign 8324 emacs submitter 8324 pglpm0@gmail.com severity 8324 minor thanks From debbugs-submit-bounces@debbugs.gnu.org Tue Mar 22 19:30:29 2011 Received: (at submit) by debbugs.gnu.org; 22 Mar 2011 23:30:29 +0000 Received: from localhost ([127.0.0.1] helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1Q2B1w-0000p6-GZ for submit@debbugs.gnu.org; Tue, 22 Mar 2011 19:30:28 -0400 Received: from eggs.gnu.org ([140.186.70.92]) by debbugs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1Q2Azf-0000lL-7i for submit@debbugs.gnu.org; Tue, 22 Mar 2011 19:28:07 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Q2AzY-0004aT-TT for submit@debbugs.gnu.org; Tue, 22 Mar 2011 19:28:01 -0400 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on eggs.gnu.org X-Spam-Level: X-Spam-Status: No, score=-1.0 required=5.0 tests=BAYES_00, FREEMAIL_ENVFROM_END_DIGIT, FREEMAIL_FROM, HK_RANDOM_ENVFROM, RCVD_IN_DNSWL_LOW, T_DKIM_INVALID,T_TO_NO_BRKTS_FREEMAIL autolearn=no version=3.3.1 Received: from lists.gnu.org ([199.232.76.165]:47112) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Q2AzY-0004aP-RK for submit@debbugs.gnu.org; Tue, 22 Mar 2011 19:28:00 -0400 Received: from [140.186.70.92] (port=41173 helo=eggs.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1Q2AzX-0000BQ-Ox for bug-gnu-emacs@gnu.org; Tue, 22 Mar 2011 19:28:00 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Q2AzW-0004aD-Qu for bug-gnu-emacs@gnu.org; Tue, 22 Mar 2011 19:27:59 -0400 Received: from mail-gy0-f169.google.com ([209.85.160.169]:39211) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Q2AzW-0004a3-ON for bug-gnu-emacs@gnu.org; Tue, 22 Mar 2011 19:27:58 -0400 Received: by gyg10 with SMTP id 10so3224949gyg.0 for ; Tue, 22 Mar 2011 16:27:57 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:sender:message-id:date:from:user-agent :mime-version:to:subject:content-type:content-transfer-encoding; bh=sz0Nt1ThjxkkE1NCNkXWSme85zxyHJTBDOnw8BG2Vq0=; b=AZjo1YFcyZ/E8YvKaXx9XqWy0NjmxI/2w0FPvVkfE8o20M16ugAs46FFYlxqBEbo3C tmNUHvYrG5A0mfvcC9RV1Sk9zn28JW0oUxyJ09Qju++slsfOFn0WXJ4oHZWjdX46gHwJ iFuncZbeRpDqds2KznCAeG9eUmuvRHIq/HLsg= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=sender:message-id:date:from:user-agent:mime-version:to:subject :content-type:content-transfer-encoding; b=PDhuOPk4BwyycTac0M4bWH7GDjgvE/4fLVVBjfxdt0lSeFN4irwVSvcYBOaezUkkLT dI0BeeJMK64BkXnPBRyJpw1N5j8fDdFkQ1O40IEAKYC04b/Xa65Te1ZADe4HsUsnlObC Xc0um6ummcUaNSp7FXgbb2hsSdDvoM9zgCBQY= Received: by 10.150.162.4 with SMTP id k4mr5773805ybe.125.1300836477364; Tue, 22 Mar 2011 16:27:57 -0700 (PDT) Received: from [10.10.10.52] (nat.perimeterinstitute.ca [38.117.109.20]) by mx.google.com with ESMTPS id p41sm1952714ybk.14.2011.03.22.16.27.55 (version=SSLv3 cipher=OTHER); Tue, 22 Mar 2011 16:27:56 -0700 (PDT) Message-ID: <4D89307A.1010104@gmail.com> Date: Tue, 22 Mar 2011 19:27:54 -0400 From: pglpm0@gmail.com User-Agent: Thunderbird/666 MIME-Version: 1.0 To: bug-gnu-emacs@gnu.org Subject: Emacs 23.3 for W32 and libpng: update documentation Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6 (newer, 2) X-detected-operating-system: by eggs.gnu.org: GNU/Linux 2.6 (newer, 2) X-Received-From: 199.232.76.165 X-Spam-Score: -5.9 (-----) X-Debbugs-Envelope-To: submit X-Mailman-Approved-At: Tue, 22 Mar 2011 19:30:27 -0400 X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.11 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: debbugs-submit-bounces@debbugs.gnu.org Errors-To: debbugs-submit-bounces@debbugs.gnu.org X-Spam-Score: -5.9 (-----) Hey good people, I had some problems visualizing png images with the new Emacs 23.3, MSwindows port. Eventually I discovered that the 'image-library-alist' has changed from v23.2: it now requires libpng14 instead of libpng12. I was using the latter from Gnuwin32. After getting libpng14 from GTK+ everything works fine. The 'bug' is this: please update the README file to warn about these changes, I found no mentions of them in the updated documentation. Thanks everybody for a beautiful new emacs release! PGL From debbugs-submit-bounces@debbugs.gnu.org Wed Mar 23 00:07:29 2011 Received: (at 8324) by debbugs.gnu.org; 23 Mar 2011 04:07:29 +0000 Received: from localhost ([127.0.0.1] helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1Q2FM0-0007dS-Vf for submit@debbugs.gnu.org; Wed, 23 Mar 2011 00:07:29 -0400 Received: from mtaout21.012.net.il ([80.179.55.169]) by debbugs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1Q2FLy-0007dF-RS for 8324@debbugs.gnu.org; Wed, 23 Mar 2011 00:07:28 -0400 Received: from conversion-daemon.a-mtaout21.012.net.il by a-mtaout21.012.net.il (HyperSendmail v2007.08) id <0LIH00B00SRUPY00@a-mtaout21.012.net.il> for 8324@debbugs.gnu.org; Wed, 23 Mar 2011 06:07:20 +0200 (IST) Received: from HOME-C4E4A596F7 ([77.126.16.52]) by a-mtaout21.012.net.il (HyperSendmail v2007.08) with ESMTPA id <0LIH00BIVSS7JV70@a-mtaout21.012.net.il>; Wed, 23 Mar 2011 06:07:20 +0200 (IST) Date: Wed, 23 Mar 2011 06:07:20 +0200 From: Eli Zaretskii Subject: Re: bug#8324: Emacs 23.3 for W32 and libpng: update documentation In-reply-to: <4D89307A.1010104@gmail.com> X-012-Sender: halo1@inter.net.il To: pglpm0@gmail.com Message-id: <8362rav5s7.fsf@gnu.org> References: <4D89307A.1010104@gmail.com> X-Spam-Score: -2.1 (--) X-Debbugs-Envelope-To: 8324 Cc: 8324@debbugs.gnu.org X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.11 Precedence: list Reply-To: Eli Zaretskii List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: debbugs-submit-bounces@debbugs.gnu.org Errors-To: debbugs-submit-bounces@debbugs.gnu.org X-Spam-Score: -2.1 (--) > Date: Tue, 22 Mar 2011 19:27:54 -0400 > From: pglpm0@gmail.com > Cc: > > I had some problems visualizing png images with the new > Emacs 23.3, MSwindows port. Eventually I discovered that the > 'image-library-alist' has changed from v23.2: it now > requires libpng14 instead of libpng12. I was using the > latter from Gnuwin32. After getting libpng14 from GTK+ > everything works fine. > > The 'bug' is this: please update the README file to warn > about these changes, I found no mentions of them in the > updated documentation. It is mentioned in nt/INSTALL and in README.W32, see below. Please tell how to make it more visible than that, and please see how did you miss that. INSTALL: For PNG images, we recommend to use versions 1.4.x and later of libpng, because previous versions had security issues. You can find precompiled libraries and headers on the GTK download page for Windows (http://www.gtk.org/download-windows.html). Versions 1.4.0 and later of libpng are binary incompatible with earlier versions, so Emacs will only look for libpng libraries which are compatible with the version it was compiled against. That version is given by the value of the Lisp variable `libpng-version'; e.g., 10403 means version 1.4.3. The variable `image-library-alist' is automatically set to name only those DLL names that are known to be compatible with the version given by `libpng-version'. If PNG support does not work for you even though you have the support DLL installed, check the name of the installed DLL against `image-library-alist' and the value of `libpng-version', and download compatible DLLs if needed. README.W32: PNG: requires the PNG reference library 1.4 or later, which will be named libpng14.dll or libpng14-14.dll. LibPNG requires zlib, which should come from the same source as you got libpng. Starting with Emacs 23.3, the precompiled Emacs binaries are built with libpng 1.4.x and later, and are incompatible with earlier versions of libpng DLLs. So if you have libpng 1.2.x, the PNG support will not work, and you will have to download newer versions. From debbugs-submit-bounces@debbugs.gnu.org Wed Mar 23 14:16:25 2011 Received: (at 8324-done) by debbugs.gnu.org; 23 Mar 2011 18:16:25 +0000 Received: from localhost ([127.0.0.1] helo=debbugs.gnu.org) by debbugs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1Q2SbZ-0002pj-Em for submit@debbugs.gnu.org; Wed, 23 Mar 2011 14:16:25 -0400 Received: from mtaout20.012.net.il ([80.179.55.166]) by debbugs.gnu.org with esmtp (Exim 4.69) (envelope-from ) id 1Q2SbW-0002pV-Bc for 8324-done@debbugs.gnu.org; Wed, 23 Mar 2011 14:16:23 -0400 Received: from conversion-daemon.a-mtaout20.012.net.il by a-mtaout20.012.net.il (HyperSendmail v2007.08) id <0LII00200W0F5Q00@a-mtaout20.012.net.il> for 8324-done@debbugs.gnu.org; Wed, 23 Mar 2011 20:16:14 +0200 (IST) Received: from HOME-C4E4A596F7 ([77.124.83.148]) by a-mtaout20.012.net.il (HyperSendmail v2007.08) with ESMTPA id <0LII001PWW30HW70@a-mtaout20.012.net.il>; Wed, 23 Mar 2011 20:16:14 +0200 (IST) Date: Wed, 23 Mar 2011 20:16:14 +0200 From: Eli Zaretskii Subject: Re: bug#8324: Emacs 23.3 for W32 and libpng: update documentation In-reply-to: <4D897457.5000804@gmail.com> X-012-Sender: halo1@inter.net.il To: pglpm0@gmail.com Message-id: <83zkolu2hd.fsf@gnu.org> References: <4D89307A.1010104@gmail.com> <8362rav5s7.fsf@gnu.org> <4D897457.5000804@gmail.com> X-Spam-Score: -2.1 (--) X-Debbugs-Envelope-To: 8324-done Cc: 8324-done@debbugs.gnu.org X-BeenThere: debbugs-submit@debbugs.gnu.org X-Mailman-Version: 2.1.11 Precedence: list Reply-To: Eli Zaretskii List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: debbugs-submit-bounces@debbugs.gnu.org Errors-To: debbugs-submit-bounces@debbugs.gnu.org X-Spam-Score: -2.1 (--) > Date: Wed, 23 Mar 2011 00:17:27 -0400 > From: pglpm0@gmail.com > > Thank you Eli. > > You're completely right. My fault. I usually check > > http://www.gnu.org/software/emacs/NEWS.XX.Y > > (http://www.gnu.org/software/emacs/NEWS.23.3 in this case) > for changes, and it isn't mentioned there. But obviously the > bundled README should have been the first place to look for > changes. > > Sorry for wasting your time, and thank you again. No need to apologize, and thanks for pointing out that NEWS should also mention this change. I have now added a short notice there, and it will be in the next release. From unknown Fri Aug 15 20:46:55 2025 Received: (at fakecontrol) by fakecontrolmessage; To: internal_control@debbugs.gnu.org From: Debbugs Internal Request Subject: Internal Control Message-Id: bug archived. Date: Thu, 21 Apr 2011 11:24:05 +0000 User-Agent: Fakemail v42.6.9 # This is a fake control message. # # The action: # bug archived. thanks # This fakemail brought to you by your local debbugs # administrator