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

Peter Eisentraut <peter(dot)eisentraut(at)enterprisedb(dot)com> writes:
> After analyzing the source code of ExtUtils::Embed's ldopts, I think we
> can also do this by subtracting $Config{ldflags}, since
> my $linkage = "$ccdlflags $ldflags @archives $ld_or_bs";
> and we really just want the $ld_or_bs part. (@archives should be empty
> for our uses.)

+1, this looks like a nice clean solution. I see that it gets rid
of stuff we don't really want on RHEL8 as well as various generations
of macOS.

> This would get rid of -mmacosx-version-min and -arch and all the things
> you showed, including -L/opt/local/lib, which is probably there so that
> the build of Perl itself could look there for things, but we don't need it.

It is a little weird that they are inserting -L/opt/local/lib or
-L/usr/local/lib on so many different platforms. But I concur
that if we need that, we likely should be inserting it ourselves
rather than absorbing it from their $ldflags.

BTW, I think the -arch business is dead code anyway now that we
desupported PPC-era macOS; I do not see any such switches from
modern macOS' perl. So not having a special case for that is an
additional win.

Patch LGTM; I noted only a trivial typo in the commit message:

-like we already do with $Config{ccdlflags}. Those flags the choices
+like we already do with $Config{ccdlflags}. Those flags are the choices

regards, tom lane