On 1 November 2009 Manuel Pégourié-Gonnard wrote:
> Hi Reinhard,
>
> Reinhard Kotucha a écrit :
> > kpse.set_program_name('ppower4')
>
> The problem is that kpse resolves symlinks before computing SELFAUTO*
> (which is what you want in most cases). So SELFAUTOLOC ends up being
> texmf-dist/scripts/ppoxer4 which obviously gives the wrong result.
>
> A general approach to this is to use
>
> kpse.set_program_name(arg[-1], 'ppower4')
>
> which works on all platforms (I'm using it in texdoc and never got any
> complaint). As you probably know, arg[-1] is the name of the Lua
> interpreter used for the current script, which gives good results for
> computing SELFAUTO*. I guess that's the whole purpose of the
> two-arguments form of kpse.set_program_name.
Hi Manuel,
thank you very much for the explanation. Yes, it's a very good
solution, maybe the best. I fixed it this way.
> (Btw, at some point there was a bug in kpse so that the first argument
> was ignored on GNU platforms and SELFAUTO* set to "correct" values even
> if the argument was "wrong" on platform using the GNU libc. So this kind
> of problem was hidden on, eg Linux, when this bug was present. After the
> bug was fixed, I looked a bit for othe occurences in TeX Live, but
> apparently I missed some of them.)
When I checked the stuff in texmf/scripts, I obviously didn't remember
that ppower4 was moved to texmf-dist/scripts. Maybe you overlooked it
for the same reason.
Regards, and thanks again,
Reinhard
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