Re: differences of perl/ruby texexec

[Aditya Mahajan <adityam@umich.edu>]

On Fri, 4 May 2007, Henning Hraban Ramm wrote:

> Ahoi!
>
> While processing my LilyPond/ConTeXt songbook, I experience still the
> same behaviour as in 2006-10:
>
> The checking, if a LilyPond buffer/temp file has changed, works only
> with the old Perl texexec, the recent Ruby version creates/processes
> the files only if they're missing completely and then still
> uncomplete: after 20-some songs, some buffers get dropped, so that
> LilyPond score and ConTeXt lyrics don't match.
>
> But I can't simply use the Perl texexec, because that doesn't create
> table of contents and references. Besides being much slower.
>
> Looks like the workaround of first Perl, then Ruby gives the expected
> result, but it's an annoyance.
>
> Maybe it's only a problem of the LilyPond module, but I guess the
> filechange check is somehow broken in the Ruby version.
>
> What details should I provide to track the problem down?

I usually find the output of texmfstart --verbose texexec --verbose to be 
useful in seeing what is going wrong. I think that the R module also uses 
the --ifchanged switch. If something has broken, it will also affect the R 
module.

Aditya
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