From vincent-perl@vinc17.net

For perl 5.8.8, the default lddlflags settings from hints/darwin.sh

  lddlflags="${ldflags} -bundle -undefined dynamic_lookup"

seems to be incorrect. The reason is that a -L... flag provided in
$LDFLAGS will have the precedence over the -L flags relative to the
build directory, meaning that the link may be done against an old
library version. For instance, see

  http​://trac.macports.org/ticket/16165

With the RRDs.pm module from rrdtool, the RRDs.bundle file is produced
by the command​:

  env MACOSX_DEPLOYMENT_TARGET=10.3 cc -L/opt/local/lib -bundle -undefined dynamic_lookup RRDs.o -L../../src/.libs/ -lrrd -o blib/arch/auto/RRDs/RRDs.bundle

As you can see, -L/opt/local/lib is before -L../../src/.libs/ hence the
problem during an upgrade of the module.

grep -r 'lddlflags=.*${\?ldflags' hints

shows that only darwin.sh, epix.sh and rhapsody.sh use $ldflags to set
lddlflags.

--
Vincent Lefèvre <vincent@​vinc17.org> - Web​: <http​://www.vinc17.org/>
100% accessible validated (X)HTML - Blog​: <http​://www.vinc17.org/blog/>
Work​: CR INRIA - computer arithmetic / Arenaire project (LIP, ENS-Lyon)

From @jkeenan

On Fri Aug 01 15​:56​:38 2008, vinc17 wrote​:

For perl 5.8.8, the default lddlflags settings from hints/darwin.sh

lddlflags="${ldflags} -bundle -undefined dynamic_lookup"

seems to be incorrect. The reason is that a -L... flag provided in
$LDFLAGS will have the precedence over the -L flags relative to the
build directory, meaning that the link may be done against an old
library version. For instance, see

http​://trac.macports.org/ticket/16165

With the RRDs.pm module from rrdtool, the RRDs.bundle file is produced
by the command​:

env MACOSX_DEPLOYMENT_TARGET=10.3 cc -L/opt/local/lib -bundle
-undefined dynamic_lookup RRDs.o -L../../src/.libs/ -lrrd -o
blib/arch/auto/RRDs/RRDs.bundle

As you can see, -L/opt/local/lib is before -L../../src/.libs/ hence
the
problem during an upgrade of the module.

grep -r 'lddlflags=.*${\?ldflags' hints

shows that only darwin.sh, epix.sh and rhapsody.sh use $ldflags to set
lddlflags.

I believe this is, in blead, the part of hints/darwin.sh that the OP is
referring to​:

#####
  185 lddlflags="${ldflags} -bundle -undefined dynamic_lookup"
  186 case "$ld" in
  187 *MACOSX_DEVELOPMENT_TARGET*) ;;
  188 *) ld="env MACOSX_DEPLOYMENT_TARGET=10.3 ${ld}" ;;
  189 esac
#####

Are there any Darwin experts on list who could comment about this?

Thank you very much.
Jim Keenan

The RT System itself - Status changed from 'new' to 'open'

From @jkeenan

On Thu Jan 12 17​:08​:37 2012, jkeenan wrote​:

On Fri Aug 01 15​:56​:38 2008, vinc17 wrote​:

For perl 5.8.8, the default lddlflags settings from hints/darwin.sh

lddlflags="${ldflags} -bundle -undefined dynamic_lookup"

seems to be incorrect. The reason is that a -L... flag provided in
$LDFLAGS will have the precedence over the -L flags relative to the
build directory, meaning that the link may be done against an old
library version. For instance, see

http​://trac.macports.org/ticket/16165

With the RRDs.pm module from rrdtool, the RRDs.bundle file is produced
by the command​:

env MACOSX_DEPLOYMENT_TARGET=10.3 cc -L/opt/local/lib -bundle
-undefined dynamic_lookup RRDs.o -L../../src/.libs/ -lrrd -o
blib/arch/auto/RRDs/RRDs.bundle

As you can see, -L/opt/local/lib is before -L../../src/.libs/ hence
the
problem during an upgrade of the module.

grep -r 'lddlflags=.*${\?ldflags' hints

shows that only darwin.sh, epix.sh and rhapsody.sh use $ldflags to set
lddlflags.

I believe this is, in blead, the part of hints/darwin.sh that the OP is
referring to​:

#####
185 lddlflags="${ldflags} -bundle -undefined dynamic_lookup"
186 case "$ld" in
187 *MACOSX_DEVELOPMENT_TARGET*) ;;
188 *) ld="env MACOSX_DEPLOYMENT_TARGET=10.3 ${ld}" ;;
189 esac
#####

Are there any Darwin experts on list who could comment about this?

Thank you very much.
Jim Keenan

Again I put out a request that any Darwin-knowledgeable people take a
look at this issue.

Thank you very much.
Jim keenan