Christoph Berg <> writes:
> HEAD as of 5a5c2feca still has the same problem on kfreebsd. Is there
> anything I could dump so we understand the problem better?

Yeah, I did not expect that 5a5c2feca would change anything on

What we need to do is verify that PL/Perl's idea of
sizeof(PerlInterpreter) is different from Perl's own idea, and then
find out why --- ie, just which fields have different size/alignment
in the two compiles.

You mentioned upthread that configure shows this:

> checking for CFLAGS recommended by Perl... -D_REENTRANT -D_GNU_SOURCE
> -DDEBIAN -fwrapv -fno-strict-aliasing -pipe -I/usr/local/include
> checking for CFLAGS to compile embedded Perl... -DDEBIAN

If the source of the problem is the same mechanism as it was for the
other platforms, then presumably the issue is that we need one or more
to be defined while building PL/Perl.  Now, it couldn't be -D_GNU_SOURCE
that's at issue, because we turn that on in src/template/linux:

# Force _GNU_SOURCE on; plperl is broken with Perl 5.8.0 otherwise

(That ancient comment is pretty interesting in this connection, isn't it.)

And I'd have thought that _LARGEFILE_SOURCE=1 and _FILE_OFFSET_BITS=64
were the default behavior on any modern platform anyway, but maybe
kfreebsd is weird about that.  Anyway, you could try sticking combinations
of these symbols into perl_embed_ccflags in src/ and
rebuilding PL/Perl to see if the problem goes away; if that works it would
give us a leg up on where the problem is.

                        regards, tom lane

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