--- Begin Message ---
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Subject: |
23.2.91; Pretest Windows binary doesn't support PNG images |
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Date: |
Thu, 23 Dec 2010 01:03:42 -0500 |
This bug report will be sent to the Free Software Foundation,
not to your local site managers!
Please write in English if possible, because the Emacs maintainers
usually do not have translators to read other languages for them.
Your report will be posted to the address@hidden mailing list
and the gnu.emacs.bug news group, and at http://debbugs.gnu.org.
Please describe exactly what actions triggered the bug
and the precise symptoms of the bug. If you can, give
a recipe starting from `emacs -Q':
emacs -Q
(image-type-available-p 'png) => t
C-x C-f some-file.png RET => no image displayed, only an empty box.
Does anyone else using the precompiled Windows binaries of v23.2.91
(from alpha.gnu.org) see this problem?
A binary I compiled myself from the stock v23.2.91 sources shows PNG
images just fine, with the same image libraries.
Sean, did you build the binaries differently from the previous pretest
(23.2.90)? It does show PNG images on the same machine with the same
image libraries.
If Emacs crashed, and you have the Emacs process in the gdb debugger,
please include the output from the following gdb commands:
`bt full' and `xbacktrace'.
For information about debugging Emacs, please read the file
d:/usr/emacs/etc/DEBUG.
In GNU Emacs 23.2.91.1 (i386-mingw-nt5.1.2600)
of 2010-12-11 on 3249CTO
Windowing system distributor `Microsoft Corp.', version 5.1.2600
configured using `configure --with-gcc (4.4) --no-opt --cflags
-Ic:/imagesupport/include'
Important settings:
value of $LC_ALL: nil
value of $LC_COLLATE: nil
value of $LC_CTYPE: nil
value of $LC_MESSAGES: nil
value of $LC_MONETARY: nil
value of $LC_NUMERIC: nil
value of $LC_TIME: nil
value of $LANG: HEB
value of $XMODIFIERS: nil
locale-coding-system: cp1255
default enable-multibyte-characters: t
Major mode: Lisp Interaction
Minor modes in effect:
tooltip-mode: t
mouse-wheel-mode: t
tool-bar-mode: t
menu-bar-mode: t
file-name-shadow-mode: t
global-font-lock-mode: t
font-lock-mode: t
blink-cursor-mode: t
auto-encryption-mode: t
auto-compression-mode: t
line-number-mode: t
transient-mark-mode: t
Recent input:
( i m a g e - t y p e - a v a i l a b l e - p SPC '
p n g ) C-j <up> <left> <left> <backspace> <backspace>
<backspace> s v g <right> C-j M-x r e p o r t - e m
<tab> <return>
Recent messages:
For information about GNU Emacs and the GNU system, type C-h C-a.
Load-path shadows:
None found.
Features:
(shadow sort mail-extr message ecomplete rfc822 mml easymenu mml-sec
password-cache mm-decode mm-bodies mm-encode mailcap mail-parse
rfc2231
rfc2047 rfc2045 qp ietf-drums mailabbrev nnheader gnus-util netrc
time-date mm-util mail-prsvr gmm-utils wid-edit mailheader canlock
sha1
hex-util hashcash mail-utils emacsbug tooltip ediff-hook vc-hooks
lisp-float-type mwheel dos-w32 disp-table ls-lisp w32-win w32-vars
tool-bar dnd fontset image fringe lisp-mode register page menu-bar
rfn-eshadow timer select scroll-bar mldrag mouse jit-lock font-lock
syntax facemenu font-core frame cham georgian utf-8-lang misc-lang
vietnamese tibetan thai tai-viet lao korean japanese hebrew greek
romanian slovak czech european ethiopic indian cyrillic chinese
case-table epa-hook jka-cmpr-hook help simple abbrev loaddefs button
minibuffer faces cus-face files text-properties overlay md5 base64
format env code-pages mule custom widget hashtable-print-readable
backquote make-network-process multi-tty emacs)
--- End Message ---
--- Begin Message ---
|
Subject: |
Re: bug#7716: 23.2.91; Pretest Windows binary doesn't support PNG images |
|
Date: |
Fri, 31 Dec 2010 14:46:40 +0200 |
> From: Jason Rumney <address@hidden>
> Cc: address@hidden
> Date: Thu, 30 Dec 2010 23:58:46 +0800
>
> Eli Zaretskii <address@hidden> writes:
>
> Faced with a choice between 1.4 and an old 1.2 with known security
> vulnerabilities, I know which one I'd rather recommend to users.
I agree, but I don't want to force users who build their own Emacs to
upgrade to a newer libpng just to have PNG support in Emacs. So I
installed (on the emacs-23 branch) a set of changes that expose to
Lisp the version of libpng against which Emacs was compiled, and then
w32-win.el sets up the PNG part of image-library-alist
(dynamic-library-alist in Emacs 24) as appropriate for what was used
during compilation.
While at that, I also fixed image.c to avoid a compiler warning due to
direct access to png_ptr->jmpbuf.
--- End Message ---