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Message-ID: <006301c0d698$4691b0a0$0200a8c0@swan.atu.com.au>
From: "=?iso-8859-1?Q?...2=AB...?=" <swan AT atu DOT com DOT au>
To: <cygwin AT cygwin DOT com>
References: <200105062027 DOT f46KRCH15824 AT rtl DOT cygnus DOT com>
Subject: libgif? cheetah Re: [ANNOUNCEMENT] Updated: libpng-1.0.11-1
Date: Mon, 7 May 2001 11:51:45 +1000
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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 ***
> 
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> 
> 
> 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
> 
> 
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