[OS X TeX] Re: mpost 0.992 in gwTeX problem

[nicola]

In article <ED074726-58B8-4D7E-9646-26CA67C11CBF at fusl.ac.be>,
 Franck Pastor <pastor at fusl.ac.be> wrote:

> Le 11-déc.-06 à 17:38, nicola a écrit :
> 
> > Hi,
> > I have updated to the latest (9 dec 06) Gerben Wierda's TeXLive
> > distribution, which comes with MetaPost 0.992. Compiling the following
> > source code
> >
> > verbatimtex
> > %&latex
> > \documentclass{article}
> > \begin{document}
> > etex
> > beginfig(0);
> > label.top(btex $x$ etex, origin);
> > endfig;
> > end;
> >
> > produces the following error:
> >
> > $ mpost foo.mp
> > This is MetaPost, Version 0.992 (Web2C 7.5.5)
> > (foo.mpmakempx: Command failed: tex --parse-first-line
> > --interaction=nonstopmode mpxerr.tex; see mpxerr.log
> >
> >>> foo.mp
> >>> foo.mpx
> > ! Unable to make mpx file.
> > l.8 label.top(btex
> >                    $x$ etex, origin);
> > Transcript written on foo.log.
> >
> > If I delete the verbatimtex... etex part I can compile without  
> > errors. A
> > similar problem exists if I use TEX.mp with a line similar to
> >
> > TEXPRE("%&latex" & char(10) & "\documentclass{article}\begin 
> > {document}");
> >
> > My impression is that mpost does not recognize %&latex. Why?
> >
> > Nicola
> 
> Same results here, if I run Metapost via TeXShop. If you want to use  
> LaTeX for your labels, you could:
> 
> -- either open the file "metapostwrap" in /Applications/TeXShop/ 
> contents/resources, and change this file by replacing the lines:
> 
> mpost --interaction=nonstopmode "${filename:r}.mp"
> 
> and
> 
> mpost  "${filename:r}.mp"
> 
> by
> 
> mpost --interaction=nonstopmode -tex=latex "${filename:r}.mp"
> 
> and
> 
> mpost -tex=latex "${filename:r}.mp"
> 
> It will force Metapost to run LaTeX for labels. This is the solution  
> I'm using.
> 
> 
> -- or of course running Metapost through the command line: "mpost - 
> tex=latex your_file.mp"...

Thanks, your solution works fine, of course (I use my own TeXShop 
engine, btw). My question arose, though, because the above code was 
compiling flawlessly with previous versions of MetaPost, without 
explicitly stating -tex=latex, but now it is not. So, I am wondering 
whether something is broken or there is something new - if so, I have 
not found it documented.

Nicola


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