[poppler] Can pdfto*-commands depend on a specific backend?

[Kristian Høgsberg]

Thorkild Stray wrote:
> Well, it kinda has to, when I come to think of it. pdftotext depends on
> the TextOuputDev, for example.
> 
> But is it ok to depend on, for example, a Cairo-backend? 
> 
> In Høgsberg's "poppler 0.5 release coming up soon" he mentioned: 
...
> I've been playing with a pdftosvg plugin for use with inkscape (to make
> it possible to import PDF), and was just wondering if this is something
> that could be distributed with poppler, or if things like that should be
> distributed separatly.

This is awesome.  Overall, I'd like the command line utilities to be 
option compatible with the existing xpdf utilities and not depend on 
either the glib or the qt binding.  I think it's a good idea to ship and 
build any new command line tools we add these together with poppler, and 
since they'll be using the xpdf header files, it's pretty much the only 
option.

As for backend choice, where possible, I'd like the command line tools 
to work with either the splash or cairo (and eventually arthur) backends 
(like the glib bindings).  But for things like pdftosvg, which requires 
the cairo backend, it makes sense to only build that if the cairo 
backend is configure in.

cheers,
Kristian