works for me with: 
% perl -le 'print unpack p,unpack$^V<5.01?P4:x12a4,unpack P16,pack L,\
+japh'

% perl -v

This is perl, v5.10.0 built for i686-linux

Copyright 1987-2007, Larry Wall
[...]

[download]

In reply to Re: unpack p-JAPH by jpearl
in thread unpack p-JAPH by locked_user mtve

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