Re: [RFC] building postgres with meson

Josef Šimánek <josef(dot)simanek(at)gmail(dot)com> writes:

> čt 14. 10. 2021 v 15:14 odesílatel Dagfinn Ilmari Mannsåker
> <ilmari(at)ilmari(dot)org> napsal:
>>
>> Josef Šimánek <josef(dot)simanek(at)gmail(dot)com> writes:
>>
>> > The only problem I do have currently is auto-detection of perl. I'm
>> > getting error related to missing "Opcode.pm". PERL is autodetected and
>> > enabled (https://pastebin.com/xfRRrDcU).
>>
>> Your Perl (not PERL) installation seems to be incomplete. Opcode.pm is a
>> core module, and should be in /usr/lib64/perl5, judging by the paths in
>> the error message.
>>
>> Which OS is this? Some Linux distributions have separate packages for
>> the interpreter itself and the included modules, and the packages can be
>> named confusingly. E.g. on older Redhat/Fedora versions you have to
>> install the 'perl-core' package to get all the modules, 'perl' is just
>> the interpreter and the bare minimum set of strictily necessary modules.
>>
>> They've fixed this in recent versions (Fedora 34 and Redhat 8, IIRC), so
>> that 'perl' gives you the hole bundle, and 'perl-interpeter' is the
>> minimal one.
>
> I'm using Fedora 34 and I still see perl-Opcode.x86_64 as a separate
> package.`

Yes, it's a separate package, but the 'perl' package depends on all the
core module packages, so installing that should fix things. You appear
to only have 'perl-interpreter' installed.

> Anyway it behaves differently with autoconf tools and the meson build
> system. Is perl disabled by default in the current build system?

configure doesn't auto-detect any optional features, they have to be
explicitly enabled using --with-foo switches.

- ilmari