[dev-context] mptopdf: produces PDF with 'unknown operator' error

[Taco Hoekwater]

Sanjoy Mahajan wrote:
> The following test file (included in the attached .zip) produces errors
> when test.pdf is viewed in xpdf (v3.0):
> 
>   Error (1004): Unknown operator 'D'
>   Error (1006): Too few (0) args to 'J' operator

You should up- or downgrade your MetaPost installation. Since 0.980 or
so, the PostsScript shortcuts have different names. ConTeXt depends
on them either using the new names, or being absent altogether.

Best, taco