Re: undefined reference to png_...

[Kendall Bell]

No, it doesn't appear to be linking to png. The extra output is as follows:

Making all for app WindowApp...
gcc  -rdynamic       -fgnu-runtime -o WindowApp.app/./WindowApp \
       ./shared_obj/MyApp.o  -LGNUstep/Library/Libraries 
-L/usr/local/lib/GNUstep/Local/Library/Libraries 
-L/usr/local/lib/GNUstep/Network/Library/Libraries 
-L/usr/lib/GNUstep/System/Library/Libraries -lgnustep-gui -lgnustep-base 
-lpthread -lobjc -lm

Adam Fedor wrote:
> 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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