PERL Miscellaneous - Binary compatibility 5.8.0 -> 5.8.7

Author

Binary compatibility 5.8.0 -> 5.8.7

Trond Hasle Amundsen

2005-06-08, 3:59 pm

Hi,

I'm having trouble making a perl 5.8.7 which is binary compatible with
our pre-installed modules for 5.8.0. I've included the libpath for the
old modules in @INC, so pure perl modules aren't a problem. However,
with binary modules (that is, they contain C code and have a .so file)
doesn't work. I get the famous error message:

Can't load '/local/lib/perl5/site_perl/5.8.0/auto/PDL/Core/Core.so' for module PDL::Core: /local/lib/perl5/site_perl/5.8.0/auto/PDL/Core/Core.so: undefined symbol: PL_sv_undef at /local/lib/perl5/5.8.7/DynaLoader.pm line 230.
at (eval 1) line 6
Compilation failed in require at (eval 1) line 6.
BEGIN failed--compilation aborted at (eval 1) line 6.
BEGIN failed--compilation aborted at -e line 1.

Problem is, the previous perl version is single-threaded and static
(i.e. is has a libperl.a instead of libperl.so), while I want to
compile the new version with threading support and with a shared lib.
I don't know if this is an issue at all, but here you have it.

Any suggestions? I'm stuck.

Cheers,

--
Trond

Sisyphus

2005-06-09, 3:57 am

"Trond Hasle Amundsen" <trondham+spam@ulrik.uio.no> wrote in message
news:15ty89keu1n.fsf@tux.uio.no...
>
> Hi,
>
> I'm having trouble making a perl 5.8.7 which is binary compatible with
> our pre-installed modules for 5.8.0.

[snip]

> Problem is, the previous perl version is single-threaded and static
> (i.e. is has a libperl.a instead of libperl.so), while I want to
> compile the new version with threading support and with a shared lib.
> I don't know if this is an issue at all, but here you have it.
>

Yes - I don't think you can run threaded binaries on a non-threaded perl
(and vice-versa).

> Any suggestions? I'm stuck.
>

If you want to use those modules with a threaded perl then afaik you'll have
to rebuild those modules using that perl.

Cheers,
Rob

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