[metapost] Bug? Parsing def := := enddef;

[Taco Hoekwater]

Nicola wrote:
> 
> But the following gives an error:
> 
> This is MetaPost, version 1.208 (kpathsea version 3.5.7dev)
> **\relax
> 
> *def := := enddef;
> ! Missing `=' has been inserted.
> <to be read again> 
>                    :=
> <*> def := :=
>               enddef;
> ? 
> 
> That looks like a small bug. Taco, can you confirm?

Confirmed. Whether this is a 'fixable' bug remains to be seen,
I will investigate. The macro definition is fairly pointless,
but does not alter the fact that either the executable or the
documentation has it wrong.

Best wishes,
Taco