[arch-dev-public] wesnoth issue with png

[Tobias Powalowski]

Am Freitag 22 Januar 2010 schrieb Daniel Isenmann:
> -------- Original-Nachricht --------
> 
> > Datum: Fri, 22 Jan 2010 11:18:35 +0100
> > Von: "Daniel Isenmann" <daniel.isenmann at gmx.de>
> > An: Public mailing list for Arch Linux development
> > <arch-dev-public at archlinux.org> Betreff: Re: [arch-dev-public] wesnoth
> > issue with png
> >
> >
> > -------- Original-Nachricht --------
> >
> > > Datum: Fri, 22 Jan 2010 11:10:02 +0100
> > > Von: Tobias Powalowski <t.powa at gmx.de>
> > > An: Public mailing list for Arch Linux development
> >
> > <arch-dev-public at archlinux.org>
> >
> > > Betreff: [arch-dev-public] wesnoth issue with png
> > >
> > > Hi guys need some help on wesnoth,
> > > tools/exploder_utils.cpp: In function 'void save_image(surface, const
> > > std::string&)':
> > > tools/exploder_utils.cpp:177: error: 'png_voidp_NULL' was not declared
> >
> > in
> >
> > > this
> > > scope
> > > tools/exploder_utils.cpp:178: error: 'png_error_ptr_NULL' was not
> >
> > declared
> >
> > > in
> > > this scope
> > > make[2]: *** [tools/exploder_utils.o] Error 1
> > >
> > > affected codepart:
> > > 	png_struct* png_ptr = png_create_write_struct
> > > 		(PNG_LIBPNG_VER_STRING, (png_voidp)png_voidp_NULL,
> > > 		 png_error_ptr_NULL, png_error_ptr_NULL);
> > >
> > >
> > > snip from changelog of 1.4 libpng
> > >    b. We removed the typecasted NULL definitions such as
> > >
> > >           #define png_voidp_NULL    (png_voidp)NULL
> > >
> > >       If you used these in your application, just use NULL instead.
> > >
> > > so what should i add?
> > >
> > > thanks
> > > greetings
> > > tpowa
> >
> > Just what the changelog say, use NULL. So change the method to:
> >
> > png_struct* png_ptr = png_create_write_struct
> > 		(PNG_LIBPNG_VER_STRING, (png_voidp)NULL,
> > 		 png_error_ptr_NULL, png_error_ptr_NULL);
> >
> > Maybe you have to change "the png_error_ptr_NULL" to NULL also.
> >
> >
> >  Daniel
> 
> Was there something mentioned about the "png_error_ptr_NULL" in the
>  changelog? Because this is also affected. I have overseen the error
>  message from the compiler for it.
> 
no, no mention about it setting to NULL makes it compile though.
greetings
tpowa
-- 
Tobias Powalowski
Archlinux Developer & Package Maintainer (tpowa)
http://www.archlinux.org
tpowa at archlinux.org
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