Re: databases/p5-postgresql-plperl links to wrong libperl.so

On Fri, 2005-02-11 at 23:20 +0100, Anton Berezin wrote:
> On Fri, Feb 11, 2005 at 11:09:35PM +0100, Anton Berezin wrote:
> > On Fri, Feb 11, 2005 at 04:41:55PM -0500, Sven Willenberger wrote:
> > > On Fri, 2005-02-11 at 21:35 +0100, Anton Berezin wrote:
> > > > On Fri, Feb 11, 2005 at 11:10:15AM -0500, Sven Willenberger wrote:
> > > > > On Fri, 2005-02-11 at 16:46 +0100, Palle Girgensohn wrote:
> > > > > > --On fredag, februari 11, 2005 10.24.22 -0500 Sven Willenberger
> > > > > > <sven@dmv.com> wrote:
> > > >
> > > > > > > FreeBSD 4.10
> > > > > > > Postgresql 7.4.7
> > > > > > > Perl 5.8.6_2 (from ports)
> > > >
> > > > > > > When building databases/p5-postgresql-plperl the resultant plperl.so
> > > > > > > (/usr/local/lib/postgresql/plperl.so) links to the libperl.so
> > > > > > > in /usr/lib instead of /usr/local/lib/perl5/5.8.6/mach/CORE/.
> > > >
> > > > > > > ldd /usr/local/lib/postgresql/plperl.so
> > > > > > > /usr/local/lib/postgresql/plperl.so:
> > > > > > >         libperl.so => /usr/lib/libperl.so (0x2810b000)
> > > > > > >         libm.so.2 => /usr/lib/libm.so.2 (0x281a3000)
> > > > > > >         libcrypt.so.2 => /usr/lib/libcrypt.so.2 (0x281be000)
> > > > > > >         libutil.so.3 => /usr/lib/libutil.so.3 (0x281d7000)
> >
> > > > 2. _Or_ plperl does not go all the way to be a conformant perl-embedding
> > > >    application.  It looks at $Config{archlibexp}, but it does not follow
> > > >    directions described in perlembed(1).  In this case it's linking
> > > >    should be fixed to respect that.
> >
> > > This does seem to be the case. I built postgresqql from source this time
> > > rather than ports with ./configure --with-perl --with-openssl and, as
> > > you point out, the congigure does find its way to the CORE directory but
> > > the end product still links to the /usr/lib/libperl.so location.
> >
> > Alright.  It is not plperl folks fault, shared libraries and binaries do
> > things differently.  Consider:
> >
> > $ cat >binary.c
> > int main() {}
> > ^D
> >
> > $ gcc binary.c -Wl,-E -L/usr/local/lib \
> >     /usr/local/lib/perl5/5.6.2/mach/auto/DynaLoader/DynaLoader.a \
> >     -L/usr/local/lib/perl5/5.6.2/mach/CORE -lperl -lm -lcrypt -lutil \
> >     -o binary
> >
> > $ ldd ./binary
> > ./binary:
> >         libperl.so => /usr/lib/libperl.so (0x28066000)
> >         libm.so.2 => /usr/lib/libm.so.2 (0x280fe000)
> >         libcrypt.so.2 => /usr/lib/libcrypt.so.2 (0x28119000)
> >         libutil.so.3 => /usr/lib/libutil.so.3 (0x28132000)
> >         libc.so.4 => /usr/lib/libc.so.4 (0x2813b000)
>
> Grrrr.  What I wrote does not make any sense at all.  :-(
>
> It is plperl fault after all,
>
> perl -MExtUtils::Embed -le ldopts
>
> clearly states
>
>   -Wl,-R/usr/local/lib/perl5/5.6.2/mach/CORE -Wl,-E  -L/usr/local/lib
>   /usr/local/lib/perl5/5.6.2/mach/auto/DynaLoader/DynaLoader.a
>   -L/usr/local/lib/perl5/5.6.2/mach/CORE -lperl -lm -lc -lcrypt -lutil
>
> Note the -R here, and the absense of it in the lines you posted.
>
> Anton 'need more coffee or more sleep' Berezin

Ok, I have found a couple lines in configure (4354-4356) and
config/perl.m4 (31-33) that confuse me a bit as it seems that their sole
purpose is to actually strip *out* the
-R/usr/local/lib/perl5/5.8.6/mach/CORE portion of the linker args:

pgac_tmp1=`$PERL -MExtUtils::Embed -e ldopts`
pgac_tmp2=`$PERL -MConfig -e 'print $Config{ccdlflags}'`
perl_embed_ldflags=`echo X"$pgac_tmp1" | sed "s/^X//;s%$pgac_tmp2%%"`

now pgac_tmp1 contains what should really be the ld args for the final
build/linking, pgac_tmp2 contains
-Wl,-R/usr/local/lib/perl5/5.8.6/mach/CORE

it looks like the sed line is stripping out pgac_tmp2 from the pgac_tmp1
leaving the system to use the default perl libperl.so.

when I modified perl_embed_ldflags to not remove the -R line, the
compile works and links to the proper libperl.so

Sven

P.S. From this point forward I will direct any followups to just the
postgresql mailing list as it does not appear to FreeBSD specific at
this point).