Weak references are not implemented in the version of perl

Usually, this has to do with the XS component of Scalar::Util not being found (in which case weaken() is not available): 

$ perl -MScalar::Util=weaken -e'weaken(\my $var)'

$ sudo mv /usr/lib/perl5/5.8.8/x86_64-linux-thread-multi/auto/List/Uti
+l/Util.so /usr/lib/perl5/5.8.8/x86_64-linux-thread-multi/auto/List/Ut
+il/Util.so_hide

$ perl -MScalar::Util=weaken -e'weaken(\my $var)'
Weak references are not implemented in the version of perl at -e line 
+0
BEGIN failed--compilation aborted.

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In reply to Re: CPAN and "Weak references" by almut
in thread CPAN and "Weak references" by arthurg

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