Re: undefined reference to png_...

[Adam Fedor]

I think it might be gui that's not linking to png or perhaps some  
other issue.  Looking at make messages=yes for the gui library would  
be good.

On Mar 7, 2007, at 4:24 AM, Fred Kiefer wrote:

> Looks like your linker is not linking in the png library. Why this is
> the case is hast to tell. You should build this application with "make
> messages=yes" to see the full linker command.
>
>
> Kendall Bell wrote:
> > I can't seem to be able to compile any gui applications. During  
> > linking
> > I get the following messages:
> >
> > /usr/lib/GNUstep/System/Library/Libraries/libgnustep-gui.so:  
> > undefined
> > reference to `png_set_tRNS_to_alpha@PNG12_0'
> > /usr/lib/GNUstep/System/Library/Libraries/libgnustep-gui.so:  
> > undefined
> > reference to `png_destroy_read_struct@PNG12_0'
> > /usr/lib/GNUstep/System/Library/Libraries/libgnustep-gui.so:  
> > undefined
> > reference to `png_create_read_struct@PNG12_0'
> > /usr/lib/GNUstep/System/Library/Libraries/libgnustep-gui.so:  
> > undefined
> > reference to `png_set_palette_to_rgb@PNG12_0'
> > /usr/lib/GNUstep/System/Library/Libraries/libgnustep-gui.so:  
> > undefined
> > reference to `png_get_bit_depth@PNG12_0'
> > /usr/lib/GNUstep/System/Library/Libraries/libgnustep-gui.so:  
> > undefined
> > reference to `png_set_read_fn@PNG12_0'
> > /usr/lib/GNUstep/System/Library/Libraries/libgnustep-gui.so:  
> > undefined
> > reference to `png_read_image@PNG12_0'
> > /usr/lib/GNUstep/System/Library/Libraries/libgnustep-gui.so:  
> > undefined
> > reference to `png_get_io_ptr@PNG12_0'
> > /usr/lib/GNUstep/System/Library/Libraries/libgnustep-gui.so:  
> > undefined
> > reference to `png_error@PNG12_0'
> > /usr/lib/GNUstep/System/Library/Libraries/libgnustep-gui.so:  
> > undefined
> > reference to `png_read_info@PNG12_0'
> > /usr/lib/GNUstep/System/Library/Libraries/libgnustep-gui.so:  
> > undefined
> > reference to `png_get_color_type@PNG12_0'
> > /usr/lib/GNUstep/System/Library/Libraries/libgnustep-gui.so:  
> > undefined
> > reference to `png_get_rowbytes@PNG12_0'
> > /usr/lib/GNUstep/System/Library/Libraries/libgnustep-gui.so:  
> > undefined
> > reference to `png_get_valid@PNG12_0'
> > /usr/lib/GNUstep/System/Library/Libraries/libgnustep-gui.so:  
> > undefined
> > reference to `png_create_info_struct@PNG12_0'
> > /usr/lib/GNUstep/System/Library/Libraries/libgnustep-gui.so:  
> > undefined
> > reference to `png_get_channels@PNG12_0'
> > /usr/lib/GNUstep/System/Library/Libraries/libgnustep-gui.so:  
> > undefined
> > reference to `png_get_image_height@PNG12_0'
> > /usr/lib/GNUstep/System/Library/Libraries/libgnustep-gui.so:  
> > undefined
> > reference to `png_get_image_width@PNG12_0'
> > /usr/lib/GNUstep/System/Library/Libraries/libgnustep-gui.so:  
> > undefined
> > reference to `png_sig_cmp@PNG12_0'
> >
> >
> > Would anyone know how to fix this?
> >
> >
> > _______________________________________________
> > Help-gnustep mailing list
> > Help-gnustep@gnu.org
> > http://lists.gnu.org/mailman/listinfo/help-gnustep
>
>
>
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