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Date: Sun, 06 May 2001 22:44:26 -0400
To: =?iso-8859-1?Q?=22=2E=2E=2E2=AB=2E=2E=2E=22?= <swan AT atu DOT com DOT au>,
        <cygwin AT cygwin DOT com>
From: "Larry Hall (RFK Partners, Inc)" <lhall AT rfk DOT com>
Subject: Re: libgif? cheetah Re: [ANNOUNCEMENT] Updated: libpng-1.0.11-1
In-Reply-To: <006301c0d698$4691b0a0$0200a8c0@swan.atu.com.au>
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Not as part of the Cygwin distribution.  You can check out the other links
at the Cygwin site to see if there is a port.  There may be.  Otherwise, you
can try to port it yourself by downloading the source and compiling it.

Larry Hall                              lhall AT rfk DOT com
RFK Partners, Inc.                      http://www.rfk.com
118 Washington Street                   (508) 893-9779 - RFK Office
Holliston, MA 01746                     (508) 893-9889 - FAX



At 09:51 PM 5/6/2001, ...2«... wrote:
>hi, ive seen that the cheetah webbrowser uses GTK+ and no Gnome,
>id like to compile this under cygwin, things seem to go well..
>but it requires libgif, or libungif.. these possible to get under cygwin?
>
>i had a look at gtk+ for win32 website, but they dont have it either
>
>dan
>
>----- Original Message ----- 
>From: "Charles S. Wilson" <cwilson AT ece DOT gatech DOT edu>
>To: <cygwin AT cygwin DOT com>
>Sent: Monday, May 07, 2001 6:27 AM
>Subject: [ANNOUNCEMENT] Updated: libpng-1.0.11-1
>
>
> > The libpng package has been updated to version 1.0.11-1.  libpng is a
> > library that provides routines to access and manipulate Portable Network
> > Graphics (PNG) images.  PNG is a lossless, patent-unencumbered image
> > format intended to replace GIF.
> > 
> > Since the png-developers group released version 1.0.11 and our previous
> > cygwin version was based on 1.0.9, I updated our package.
> > 
> > CHANGES:
> > 
> > - many bugfixes from the png-developers group between 1.0.9 and 1.0.11.
> > 
> > - supports the '-DALL_STATIC' compile-time flag as a synonym for
> > -DPNG_STATIC (and ZLIB_STATIC).  This should help make it easier to
> > compile statically a project with many dependencies.  However, this is a
> > long-term project: each 'dll-ized' library must be updated before
> > '-DALL_STATIC' is useful.  Don't hold your breath.  So far, the
> > following libraries support -DALL_STATIC:
> >   zlib-1.1.3-6
> >   libpng-1.0.11-1
> >   ncurses-5.2-5
> > 
> > INSTALLATION:
> > 
> > To update your installation, click on the "Install Cygwin now" link on
> > the http://sources.redhat.com/cygwin web page.  This downloads setup.exe
> > to your system.
> > 
> > Run setup and answer all of the questions.  PLEASE, PLEASE, PLEASE
> > choose a mirror site for your download.  The 'sources.redhat.com' site
> > is badly overloaded.  The mirrors below have the latest version of this
> > package:
> > 
> > ftp://ftp.sunsite.utk.edu/pub/cygwin/ (US)
> > ftp://ftp.uni-erlangen.de/pub/pc/gnuwin32/cygwin/mirrors/cygnus
> > (Germany)
> > ftp://ftp.mirror.ac.uk/sites/sourceware.cygnus.com/pub/cygwin/ (UK)
> > 
> > The setup.exe program will figure out what needs to be updated on your
> > system and should install the libpng package automatically.
> > 
> > If you have questions or comments, please send them to the Cygwin
> > mailing list at:  cygwin AT sources DOT redhat DOT com .  I would appreciate if you
> > would use this mailing list rather than emailing me directly. This
> > includes ideas and comments about the setup utility or Cygwin general.
> > 
> > If you want to make a point or ask a question the Cygwin mailing list is
> > the appropriate place.
> > 
> >               *** CYGWIN-ANNOUNCE UNSUBSCRIBE INFO ***
> > 
> > If you want to unsubscribe to the cygwin-announce mailing list, look at
> > the "List-Unsubscribe: " tag in the email header of this message. Send
> > email to the address specified there.  It will be in the format:
> > 
> > cygwin-announce-unsubscribe-you=yourdomain DOT com AT sources DOT redhat DOT com
> > 
> > 
> > NOTES:
> > 
> > o If you are building a package that depends on libpng, and you wish to
> > link *statically*, define -DPNG_STATIC *and* -DZLIB_STATIC (or just
> > define -DALL_STATIC) to get the 'correct' #define's in png.h/pngconf.h 
> > *and* zlib.h/zconf.h when compiling the .o files in your package. Also, 
> > use 'gcc -static' when linking your package.
> > 
> > o No special -Ddefine options or link options are needed when building a
> > package that depends on libpng and you want to link dynamically
> > (recommended).
> > 
> > o I was able to successfully compile and pass libpng's internal tests
> > ('make test') with all of the following build enviromenments:
> >   - static
> >   - dll
> >   - static with pnggccrd (assembler optimizations)
> >   - dll with pnggccrd
> >   - static (compiled with 'gcc -mwin32')
> >   - dll (+ 'gcc -mwin32')
> >   - static with pnggccrd (+ 'gcc -mnin32')
> >   - dll with pnggccrd (+ 'gcc -mwin32')
> > However, the binary package did not use any of the assembler code, and I
> > didn't use 'gcc -mwin32' to compile it. According to tests reported
> > on the libpng-developer's mailing list, the pnggccrd code did not speed
> > it up all that much, and it breaks cygwin's compatibility with older
> > processors (a no-no). If you want to build your own libpng with those
> > enhancements, download the source --
> > /usr/doc/Cygwin/libpng-1.0.11.README 
> > contains instructions for building your own asm-accelerated libpng. 
> > 
> > Charles Wilson
> > libpng volunteer maintainer for cygwin
> > 
> > 
> > --
> > Want to unsubscribe from this list?
> > Check out: http://cygwin.com/ml/#unsubscribe-simple
> > 
> > 
>
>
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