LibXML.c: loadable library and perl binaries are mismatched

[RS]

Yes, I followed the instructions on that page to do a manual 
installation  for Ubuntu when Jon Hedgerows's PPA was withdrawn.  It 
worked fine then, and has been working fine for the last two years.

It stopped working when I upgraded from Kubuntu 18.04.6 to Kubuntu 
20.04.4.  From what I have read, it does seem to be a known problem that 
upgrading Ubuntu causes problems with Perl.  What I have not been able 
to find is how to fix it.

I guess the question I am asking is how to select versions of Perl and 
the required modules which are compatible with one another.  With most 
programs you expect deleting and re-installing to be  a solution, but 
that doesn't seem to work in this case.

On 15/08/2022 16:45, Chris Walker wrote:
> On Mon, 2022-08-15 at 15:28 +0100, RS wrote:
>> I have found this at
>> https://rt-archive.perl.org/perl5/Ticket/Display.html?id=124201
>>
>> "(got handshake key 0x7bc0000, needed 0x7cc0000)" means in your XS
>> module, the definition of the perl's master interpreter struct is
>> smaller than the interp engine expects (XS module says its 0x7bc bytes
>> long, interp core says its 0x7cc bytes long). The layouts of the
>> structs
>> are not compatible. They must be the same otherwise memory corruption
>> occurs.
> 
> Have you looked at this page?
> https://github.com/get-iplayer/get_iplayer/wiki/unix
>