Dear Hans:
I have found some bugs in supp-mps.tex that are shown when using
this module with plain (i.e., without loading the whole context
package).
The supp-mps.tex file included in your latest beta/cont-tmf.zip
contains a minor bug that shows up when trying to use metapost
from tex->dvips->ps2pdf. The following diff fixes this bug:
diff -u beta/supp-mps.tex fix/supp-mps.tex
--- beta/supp-mps.tex Thu Aug 30 18:06:00 2001
+++ fix/supp-mps.tex Sat Nov 10 13:12:08 2001
@@ -545,9 +545,9 @@
\def\nouseMPbox#1%
{\setxvalue{#1}%
{\noexpand\forgetall
\noexpand\loadMPgraphic{\MPgraphicfile.\the\currentMPgraphic}{}%
- \deallocateMPslot\currentMPgraphic
+ \noexpand\deallocateMPslot\currentMPgraphic
\noexpand\placeMPgraphic}}
\ifCONTEXT \else \let\douseMPbox=\nouseMPbox \fi
\ifCONTEXT \else \let\doifobjectssupportedelse=\relax \fi
Additionally, either the beta and the current official releases
of supp-mps.tex try to check the value of \pdfoutput, even from
classic-tex. The following, placed early in the file, may solve
the problem without harming:
% supp-mps.tex checks \pdfoutput, even if undefined!
\ifx\pdftexversion\undefined\def\pdfoutput{0}\fi
And, finally, \startreusableMPgraphic uses the \ifundefined macro,
which is itself undefined! The following addition could solve the
problem:
% \startreusableMPgraphic needs this (yet) undefined macro:
\ifx\ifundefined\undefined
\def\ifundefined#1{\expandafter\ifx\csname#1\endcsname\relax}
\fi
Regards,
Ricardo.
