Cannot open Opcode.so after upgrade from perl-5.6.0-21 to perl-5.6.1-3

["Romanenko M.A." <mikhail@angg.ru>]

I successfully upgraded from perl-5.6.0-21 to perl-5.6.1-3, but when I try
to install
plperl in postgresql-7.1.2-1 I got an error message:

postgres@mogutlor:~/dumps$ createlang plperl template1
ERROR:  Load of file /usr/lib/postgresql/lib/plperl.so failed:
/usr/lib/perl/5.6.0/auto/Opcode/Opcode.so: cannot open shared object file:
No such file or directory
createlang: language installation failed

After creating softlink /usr/lib/perl/5.6.0 -> /usr/lib/perl/5.6.1 I can
install plperl.

21.02.2001 I wrote about the same problem when upgrading to 5.6.0-19. I
created
softlink
/usr/lib/perl5/5.6/i386-linux/auto/Opcode -> ->/usr/lib/perl/5.6.0/auto/Opco
de,
but nobody answer. Now again the same thing.

Please, tell me:
1 is this wrong configuration of my system, perl-package or
postgresql-package
   bug?
2 is creating the softlink is enough, or it can get me into trouble later?

Thank you, Mikhail.