Re: magic headers (was: Upload of new texlive packages)
Hi all!
On Mon, 14 Aug 2006, Frank Küster wrote:
> >> You are invited to fix this magic header for me:
> >> eval '(exit $?0)' && eval 'exec perl -S $0 ${1+"$@"}' && eval 'exec perl -S $0 $
> >> argv:q'
> >> if 0;
> >> use strict;
> >> $^W=1; # turn warning on
> >> #
> >
>
> This is considered RC by the release team. There has been discussion
> about this recently (I think it was in a lintian bug that I filed),
> tetex should have an according bug, too. I think we should simple
> comment the magic and replace it by a
>
> #!/usr/bin/perl
>
> line for Debian.
On Die, 15 Aug 2006, Frank Küster wrote:
> This is #344269.
Interesting reading.
> > comment the magic and replace it by a
> >
> > #!/usr/bin/perl
> >
> > line for Debian.
>
> But this was still wrong. The scripts are not meant to be executed as
> TEXMFDIST/scripts/perl/foo, but by their wrapper in /usr/bin. Therefore
> I think that the answer to Florent's question
>
> ,----
> | - shouldn't the executable-not-elf-or-script overrides in
> | texlive-pdfetex.override be fixed by inserting a real
> | "#! /usr/bin/perl ..." shebang line instead of using the override,
> | as I noted you did somewhere else (in some dpatches)?
> `----
>
> is: No, not if the script has a proper wrapper in /usr/bin. At a short
> glance, I couldn't find any dpatches changing magic headers. Florent,
> can you give a hint?
Ok, I took a look at the various files, here are the bad ones, and note
that all of them are in /usr/bin and no wrappers (they were called
indirectly via texexec, but this would have created an useless dep on
texlive-context from several others, so I preferred to move them to
/usr/bin):
a2ping:
#! /bin/sh
eval '(exit $?0)' && eval 'PERL_BADLANG=x;export PERL_BADLANG;: \
;exec perl -x -S -- "$0" ${1+"$@"};#'if 0;
eval 'setenv PERL_BADLANG x;exec perl -x -S -- "$0" $argv:q;#'.q+
#!perl -w
package Htex::a2ping; $0=~/(.*)/s;unshift@INC,'.';do($1);die$@if$@;__END__+if !1;
# This Perl script was generated by JustLib2 at Wed Apr 23 09:14:13 2003.
# Don't touch/remove any lines above; http://www.inf.bme.hu/~pts/justlib
...
and continues as perl script
lintian: shell-script-fails-syntax-check
pdfcrop and thumbpdf:
eval '(exit $?0)' && eval 'exec perl -S $0 ${1+"$@"}' && eval 'exec perl -S $0 $argv:q'
if 0;
use strict;
$^W=1; # turn warning on
#
# pdfcrop.pl
... perl code
lintian: executable-not-elf-or-script
AFAIR I tried to remove the magic headers and always ended up with
*non-functional* rest. Especially the a2ping header made me go crazy.
Removing the whole bunch just adding the perl shebang didn't work. There
must be some magic hidden in these lines I do not understand - and I am
not sure whether I WANT to understand it!
If one perl guru can fix these three headers for me, you are welcome!
More than welcome!
Best wishes
Norbert
-------------------------------------------------------------------------------
Dr. Norbert Preining <preining AT logic DOT at> Università di Siena
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