On Fri, 4 May 2007, Henning Hraban Ramm wrote:
> Am 2007-05-04 um 20:17 schrieb Aditya Mahajan:
>
>> 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.
>
> Actually it was easy, and I remember to have that problem reported
> when I enhanced the LilyPond module:
>
> It says the following with *-1.tmp for every song, i.e. the counter
> doesn't work in the Ruby version:
> """
> TeXUtil | running texmfstart --ifchanged=prd_winternacht-
> lilypond-1.tmp --exec bin:lilypond -b eps -dno-gs-load-fonts -
> dinclude-eps-fonts prd_winternacht-lilypond-1.tmp
> """
>
> In the module it's defined as:
> """
> \global\advance\lily!figures\plusone
> \edef\lily!filename{\bufferprefix lilypond-\the\lily!figures}
> ...
> \edef\LP{texmfstart --ifchanged=\lily!filename.tmp --exec
> bin:lilypond -b eps -dno-gs-load-fonts -dinclude-eps-fonts \lily!
> filename.tmp}
> """
>
> I still don't understand a lot of TeX programming, so I've no clue.
\edef expands its argument at the time of the definition. So
\lily!filename is always *-1.tmp. Try changing the \edefs to \def.
Aditya
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