Hi Rasmus,

2014ko irailak 23an, Rasmus-ek idatzi zuen:
> 
> Hi, 
> 
> Aaron Ecay <aaronecay@gmail.com> writes:
> 
>>> You have two options. Either report an error, as you suggested, or
>>> insert an obnoxious message in the output, e.g., "UNKNOWN MACRO", à la
>>> "DEFINITION NOT FOUND." for footnote definitions. In any case, this
>>> should happen in "org-macro.el", not in the export framework.
> 
> This is pretty annoying for footnotes.

This turned out to be very easy to change; attached is a patch.  The
links issue (re-)raised by Jacob in
<http://mid.gmane.org/CAA6UvuFm-1nWD06A5o3HwSvEQmgqLJNcfK_PtoHSEhcVdJTYQw@mail.gmail.com>
is a bit harder to deal with, since each backend currently does
something a little different.  It would be possible to make every
backend’s org-X-link function error out at the end, but I’m not sure if
that’s the right thing to do or not.