Re: [Gnash-dev] Incorrect message when AGG is old...

[Markus Gothe]

It'dnt work because CXXFLAGS a'int set and the check_func is bogus ;)

On 30 Aug, 2007, at 20:48 , Alfred M. Szmidt wrote:

> > >    s> Anyway, still interested in attempts to bild with an older AGG
> > >    s> ...
> > >
> > >    As long as the particular 2.4 version contains the
> > >    render_scanlines_compound_layered template/class (normally
> > >    defined in agg_renderer_scanline.h) the AGG version should be
> > >    OK, so you could check for that if that's possible.
> > >
> > >    Not sure if the compatibility layer is still worth it since
> > >    2.5 is now the current version.
> > >
> > > It should be very trivial to do such a check:
> > >
> > > AC_LANG([C++])
> > > AC_CHECK_LIB([some_crucial_function_in_libagg], [libagg], [],
> > >   AC_MSG_ERROR([you are missing libagg, please install it]))
> > > AC_CHECK_FUNC([render_scanlines_compound_layered], [],
> > >   AC_MSG_ERROR([you are using a version of libagg that does not  
> > > work with gnash]))
> > >
> > > I don't know if this will work with C++'s template system though.
> >
> >    Hardly, as the macro would try to link, w/out including any  
> > header.
> >
> > Which doesn't matter, autoconf uses a dummy prototype of the function
> > when testing if a symbol exists in a library.
>
>    I mean, there's nothing to link, its *all* in header what we  
> need in this case.
>
> Crap.  Didn't people learn not to put such stuff into headers? :?
>
>
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