Re: perl upgrade fails
On Thu, May 08, 2008 at 09:41:35AM +0200, Raphael Hertzog wrote:
> On Wed, 07 May 2008, Niko Tyni wrote:
> > The only room for improvement that I can see here is to always set
> > PERL_DL_NONLAZY=1 when executing an eval statement. This sounds a bit
> > intrusive, but arguably anybody using an eval wants to catch any
> > exceptions immediately.
> >
> > I'll bring this up on p5p; if the idea is rejected outright, I think at
> > least Dpkg::Gettext and Debconf::Gettext should use the PERL_DL_NONLAZY=1
> > trick so we don't hit this in future transitions. This one can only be
> > solved with pre-dependencies anyway, as we can't do anything about the
> > Etch perl.
>
> What do you mean by "Dpkg::Gettext and Debconf::Gettext should use the
> PERL_DL_NONLAZY=1"?
>
> It's the scripts that are doing the eval that must set the environment
> variable, isn't it? Or do you see a way to force this from the module
> side?
It's precisely those modules that are doing the eval in the
Locale::gettext case, and the examples at the end of the previous mail
indicate setting "local $ENV{PERL_DL_NONLAZY}=1" before the eval statement
should work.
# perl -e 'local $ENV{PERL_DL_NONLAZY}=1; eval "require Locale::gettext"; print "got: $@" if $@; exit 0'; echo $?
got: Can't load '/usr/lib/perl5/auto/Locale/gettext/gettext.so' for module Locale::gettext: /usr/lib/perl5/auto/Locale/gettext/gettext.so: undefined symbol: Perl_Imarkstack_ptr_ptr at /usr/lib/perl/5.8/DynaLoader.pm line 225.
at (eval 1) line 3
Compilation failed in require at (eval 1) line 3.
0
Of course, this doesn't help the more general case of prerm scripts
using other XS modules, which is why I wrote "at least".
--
Niko Tyni ntyni@debian.org
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