Using MetaPost graphics in ConTeXt

[Giuseppe Bilotta <gip.bilotta@iol.it>]

Hello,

I'm trying to use some MetaPost-generated graphics with ConTeXt,
but I seem to be unable to do so. I have a file test.1 in the same
directory as the ConTeXt source, which is as minimal as:

\starttext
\input tufte
\placefigure[left]
{Esempio di settore circolare}
{\externalfigure[test.1]}
\input knuth
\stoptext

but it seems like it can't find the file test (no extension); I
tried adding options [type=mps] or [method=mps] or both, but each
fails with a different error: either it looks for test.mps or it
looks for test.unknown ...

What should I do (apart renaming the figure file)?

-- 
Giuseppe "Oblomov" Bilotta