[gentoo-user] Perl module problem

[gentoo-user] Perl module problem

[Naga Toro]

Hi,

I have two machines that uses x11-terms/rxvt-unicode-8.3. One is ~amd64 and 
one is ~x86, both have the same version of perl and 
perl-core/Scalar-List-Utils. One can use the perl extensions (~amd64 one) and 
one gives this error on startup:
----
urxvt: perl hook 0 evaluation error: Undefined subroutine 
&Scalar::Util::weaken called at /usr/lib/urxvt/urxvt.pm line 1191
----
nonworking:
$ strace urxvt 2>&1 | egrep 'open.*perl'
/usr/lib/perl5/5.8.8/Scalar/Util.pm
/usr/lib/perl5/5.8.8/List/Util.pm
----
working:
$ strace urxvt 2>&1 | egrep 'open.*perl'
/usr/lib64/perl5/vendor_perl/5.8.8/x86_64-linux/Scalar/Util.pm
/usr/lib64/perl5/vendor_perl/5.8.8/x86_64-linux/List/Util.pm
/usr/lib64/perl5/5.8.8/x86_64-linux/XSLoader.pm
/usr/lib64/perl5/vendor_perl/5.8.8/x86_64-linux/auto/List/Util/Util.so
----
This indicates that the working uses perl-core/Scalar-List-Utils but the 
nonworking uses dev-lang/perl, but why?

Does anyone have an idea as to how I can debug this?

-- 
Naga
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[gentoo-user] Re: Perl module problem

[Moshe Kamensky]

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Hi,

Does /usr/lib/perl5/vendor_perl/5.8.8/Scalar/Util.pm exist? What is the 
output of

perl -le 'print foreach @INC'

By the way, I run urxvt fine with the Scalar::Util that comes with perl.  
do you have something like 
/usr/lib/perl5/5.8.8/i686-linux-thread-multi/auto/List/Util/Util.so

Moshe

* Naga Toro <nagatoro@gmail.com> [05/10/07 16:06]:
> Hi,
> 
> I have two machines that uses x11-terms/rxvt-unicode-8.3. One is ~amd64 and 
> one is ~x86, both have the same version of perl and 
> perl-core/Scalar-List-Utils. One can use the perl extensions (~amd64 one) and 
> one gives this error on startup:
> ----
> urxvt: perl hook 0 evaluation error: Undefined subroutine 
> &Scalar::Util::weaken called at /usr/lib/urxvt/urxvt.pm line 1191
> ----
> nonworking:
> $ strace urxvt 2>&1 | egrep 'open.*perl'
> /usr/lib/perl5/5.8.8/Scalar/Util.pm
> /usr/lib/perl5/5.8.8/List/Util.pm
> ----
> working:
> $ strace urxvt 2>&1 | egrep 'open.*perl'
> /usr/lib64/perl5/vendor_perl/5.8.8/x86_64-linux/Scalar/Util.pm
> /usr/lib64/perl5/vendor_perl/5.8.8/x86_64-linux/List/Util.pm
> /usr/lib64/perl5/5.8.8/x86_64-linux/XSLoader.pm
> /usr/lib64/perl5/vendor_perl/5.8.8/x86_64-linux/auto/List/Util/Util.so
> ----
> This indicates that the working uses perl-core/Scalar-List-Utils but the 
> nonworking uses dev-lang/perl, but why?
> 
> Does anyone have an idea as to how I can debug this?
> 
> -- 
> Naga
> -- 
> gentoo-user@gentoo.org mailing list
> 

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Re: [gentoo-user] Re: Perl module problem

[Naga Toro]

On Sunday 07 October 2007 20.21.57 Moshe Kamensky wrote:
> Hi,
>
> Does /usr/lib/perl5/vendor_perl/5.8.8/Scalar/Util.pm exist? What is the
> output of
>
> perl -le 'print foreach @INC'

$ perl -le 'print foreach @INC'
/etc/perl
/usr/lib/perl5/vendor_perl/5.8.8/i686-linux
/usr/lib/perl5/vendor_perl/5.8.8
/usr/lib/perl5/vendor_perl
/usr/lib/perl5/site_perl/5.8.8/i686-linux
/usr/lib/perl5/site_perl/5.8.8
/usr/lib/perl5/site_perl
/usr/lib/perl5/5.8.8/i686-linux
/usr/lib/perl5/5.8.8
/usr/local/lib/site_perl
.

Same on both machines.

> By the way, I run urxvt fine with the Scalar::Util that comes with perl.
> do you have something like
> /usr/lib/perl5/5.8.8/i686-linux-thread-multi/auto/List/Util/Util.so

/usr/lib/perl5/vendor_perl/5.8.8/i686-linux/auto/List/Util/Util.so
/usr/lib/perl5/5.8.8/i686-linux/auto/List/Util/Util.so

Same on both machines (except that i686 == x86_64 on the working one).

>
> Moshe
>
> * Naga Toro <nagatoro@gmail.com> [05/10/07 16:06]:
> > Hi,
> >
> > I have two machines that uses x11-terms/rxvt-unicode-8.3. One is ~amd64
> > and one is ~x86, both have the same version of perl and
> > perl-core/Scalar-List-Utils. One can use the perl extensions (~amd64 one)
> > and one gives this error on startup:
> > ----
> > urxvt: perl hook 0 evaluation error: Undefined subroutine
> > &Scalar::Util::weaken called at /usr/lib/urxvt/urxvt.pm line 1191
> > ----
> > nonworking:
> > $ strace urxvt 2>&1 | egrep 'open.*perl'
> > /usr/lib/perl5/5.8.8/Scalar/Util.pm
> > /usr/lib/perl5/5.8.8/List/Util.pm
> > ----
> > working:
> > $ strace urxvt 2>&1 | egrep 'open.*perl'
> > /usr/lib64/perl5/vendor_perl/5.8.8/x86_64-linux/Scalar/Util.pm
> > /usr/lib64/perl5/vendor_perl/5.8.8/x86_64-linux/List/Util.pm
> > /usr/lib64/perl5/5.8.8/x86_64-linux/XSLoader.pm
> > /usr/lib64/perl5/vendor_perl/5.8.8/x86_64-linux/auto/List/Util/Util.so
> > ----
> > This indicates that the working uses perl-core/Scalar-List-Utils but the
> > nonworking uses dev-lang/perl, but why?
> >
> > Does anyone have an idea as to how I can debug this?
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[gentoo-user] Re: Perl module problem

[Moshe Kamensky]

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* Naga Toro <nagatoro@gmail.com> [10/10/07 14:15]:
> On Sunday 07 October 2007 20.21.57 Moshe Kamensky wrote:
> > Hi,
> >
> > Does /usr/lib/perl5/vendor_perl/5.8.8/Scalar/Util.pm exist? What is the
> > output of
> >
> > perl -le 'print foreach @INC'
> 
> $ perl -le 'print foreach @INC'
> /etc/perl
> /usr/lib/perl5/vendor_perl/5.8.8/i686-linux
> /usr/lib/perl5/vendor_perl/5.8.8
> /usr/lib/perl5/vendor_perl
> /usr/lib/perl5/site_perl/5.8.8/i686-linux
> /usr/lib/perl5/site_perl/5.8.8
> /usr/lib/perl5/site_perl
> /usr/lib/perl5/5.8.8/i686-linux
> /usr/lib/perl5/5.8.8
> /usr/local/lib/site_perl
> .
> 
> Same on both machines.
> 

Strange. Can you edit /usr/lib/urxvt/urxvt.pm and add the line

warn $INC{'Scalar/Util.pm'};

just before line 1191? Then run urxvt from a terminal, and see what it 
says.

> > By the way, I run urxvt fine with the Scalar::Util that comes with perl.
> > do you have something like
> > /usr/lib/perl5/5.8.8/i686-linux-thread-multi/auto/List/Util/Util.so
> 
> /usr/lib/perl5/vendor_perl/5.8.8/i686-linux/auto/List/Util/Util.so
> /usr/lib/perl5/5.8.8/i686-linux/auto/List/Util/Util.so

What about /usr/lib/perl5/vendor_perl/5.8.8/i686-linux/Scalar/Util.pm ?

Moshe

> 
> Same on both machines (except that i686 == x86_64 on the working one).
> 
> >
> > Moshe
> >
> > * Naga Toro <nagatoro@gmail.com> [05/10/07 16:06]:
> > > Hi,
> > >
> > > I have two machines that uses x11-terms/rxvt-unicode-8.3. One is ~amd64
> > > and one is ~x86, both have the same version of perl and
> > > perl-core/Scalar-List-Utils. One can use the perl extensions (~amd64 one)
> > > and one gives this error on startup:
> > > ----
> > > urxvt: perl hook 0 evaluation error: Undefined subroutine
> > > &Scalar::Util::weaken called at /usr/lib/urxvt/urxvt.pm line 1191
> > > ----
> > > nonworking:
> > > $ strace urxvt 2>&1 | egrep 'open.*perl'
> > > /usr/lib/perl5/5.8.8/Scalar/Util.pm
> > > /usr/lib/perl5/5.8.8/List/Util.pm
> > > ----
> > > working:
> > > $ strace urxvt 2>&1 | egrep 'open.*perl'
> > > /usr/lib64/perl5/vendor_perl/5.8.8/x86_64-linux/Scalar/Util.pm
> > > /usr/lib64/perl5/vendor_perl/5.8.8/x86_64-linux/List/Util.pm
> > > /usr/lib64/perl5/5.8.8/x86_64-linux/XSLoader.pm
> > > /usr/lib64/perl5/vendor_perl/5.8.8/x86_64-linux/auto/List/Util/Util.so
> > > ----
> > > This indicates that the working uses perl-core/Scalar-List-Utils but the
> > > nonworking uses dev-lang/perl, but why?
> > >
> > > Does anyone have an idea as to how I can debug this?
> -- 
> gentoo-user@gentoo.org mailing list
> 

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Re: [gentoo-user] [Solved] Perl module problem

[Naga Toro]

The problem was that libperl had a reference to /usr/lib/perl5/.../i486-linux/ 
when it should be /usr/lib/perl5/.../i686-linux/. So a reemerge of libperl 
later the problem is gone.

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