[racket] scribble error

I don't know whether it will solve your problem, but a cross-device
issue could be real for some users, so I've changed `net/ftp' to download
to the same directory as the destination path.

At Thu, 14 Feb 2013 13:56:37 -0600, Robby Findler wrote:
> You can just put the llncs2e.zip into the right place and then scribble
> won't try to download it anymore. I forget if you have to unpack it first,
> but a quick peek at the source should fill you in (in the error message).
> 
> 
> On Thu, Feb 14, 2013 at 1:49 PM, Jon Rafkind <rafkind at cs.utah.edu> wrote:
> 
> > Strange scribble error today. I haven't debugged it much yet, in case
> > someone has an idea of whats going on.
> >
> > $ scribble --pdf main.scrbl
> > File not found: /home/jon/.racket/llncs.cls
> > Downloading via
> > ftp://ftp.springer.de/pub/tex/latex/llncs/latex2e/llncs2e.zip...
> > rename-file-or-directory: cannot rename file or directory
> >   source path: /home/jon/svn/school/dissertation/file.tmp
> >   dest path: /var/tmp/llncs2e.zip
> >   system error: Invalid cross-device link; errno=18
> >   context...:
> >    /home/jon/tmp/plt/collects/scribble/lncs/lang.rkt: [running body]
> >
> > The directory where I ran scribble from is on the same partition as
> > /var/tmp, so I don't understand the "invalid cross-device link" part..
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