Re: Strip -mmacosx-version-min options from plperl build

Andres Freund <andres@anarazel.de>

From: Andres Freund <andres@anarazel.de>
To: Peter Eisentraut <peter.eisentraut@enterprisedb.com>
Cc: Tom Lane <tgl@sss.pgh.pa.us>, pgsql-hackers <pgsql-hackers@postgresql.org>
Date: 2022-08-22T15:41:34Z
Lists: pgsql-hackers
Hi,

On 2022-08-22 16:31:53 +0200, Peter Eisentraut wrote:
> On 20.08.22 22:44, Andres Freund wrote:
> > Maybe a daft question: Why do want any of the -l flags other than -lperl? With
> > the patch configure spits out the following on my debian system:
> > 
> > checking for CFLAGS to compile embedded Perl... -DDEBIAN
> > checking for flags to link embedded Perl...   -L/usr/lib/x86_64-linux-gnu/perl/5.34/CORE -lperl -ldl -lm -lpthread -lc -lcrypt
> > 
> > those libraries were likely relevant to build libperl, but don't look relevant
> > for linking to it dynamically. Statically would be a different story, but we
> > already insist on a shared build.
> 
> Looking inside the ExtUtils::Embed source code, I wonder if there are some
> installations that have things like -lperl538 or something like that that it
> wants to deal with.

There definitely are - I wasn't trying to suggest we'd add -lperl ourselves,
just that we'd try to only add -lperl* based on some Config variable.

We have plenty fragile windows specific logic that would be nice to get rid
of. But there's more exciting things to wrangle, I have to admit.

Greetings,

Andres Freund



Commits

  1. mingw: Define PGDLLEXPORT as __declspec (dllexport) as done for msvc

  2. Fix PL/Perl build on Cygwin

  3. Remove further unwanted linker flags from perl_embed_ldflags