rrdtool: RRDs Perl module fails to load librrd library

[vinc17@…]

Just after installing rrdtool 1.3.1_1, I get the following error:

Can't load '/opt/local/lib/perl5/site_perl/5.8.8/darwin-2level/auto/RRDs/RRDs.bundle' for module RRDs: dlopen(/opt/local/lib/perl5/site_perl/5.8.8/darwin-2level/auto/RRDs/RRDs.bundle, 1): Library not loaded: /opt/local/lib/librrd.2.dylib
  Referenced from: /opt/local/lib/perl5/site_perl/5.8.8/darwin-2level/auto/RRDs/RRDs.bundle
  Reason: image not found at /opt/local/lib/perl5/5.8.8/darwin-2level/DynaLoader.pm line 230.

Indeed /opt/local/lib/librrd.2.dylib doesn't exist: the library is librrd.4.dylib.

[blb@…]

Did you do an upgrade of rrdtool or was this the first install? Also, is RRDs part of rrdtool? If yes to both, sounds like the upgrade caused the new bundle to link against the library of the old version.

[vinc17@…]

Yes, this was an upgrade, and RRDs.pm is part of rrdtool. I've done a test with a fresh install (i.e. with no activated rrdtool during the installation), and it works. I've tried again the upgrade from version 1.2.27_0, and loading the library fails again. In the build output, I can see:

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

Could the -L/opt/local/lib before -L../../src/.libs/ be the problem?

[blb@…]

That definitely could be the issue. Assigning to maintainer.

[vinc17@…]

Perhaps not a bug in rrdtool itself. In case the line I've quoted is incorrect, its contents come from /opt/local/lib/perl5/5.8.8/darwin-2level/Config_heavy.pl (installed by the perl5.8 port):

ld='env MACOSX_DEPLOYMENT_TARGET=10.3 cc'
lddlflags='-L/opt/local/lib -bundle -undefined dynamic_lookup'

[vinc17@…]

I confirmed that the -L/opt/local/lib is the problem:

prunille:...dings/perl-shared> sudo /opt/local/bin/perl Makefile.PL   RPATH=/opt/local/lib
Writing Makefile for RRDs
prunille:...dings/perl-shared> grep '^LDDLFLAGS' Makefile
LDDLFLAGS = -L/opt/local/lib -bundle -undefined dynamic_lookup
prunille:...dings/perl-shared> sudo make
[...]
prunille:...dings/perl-shared> otool -L blib/arch/auto/RRDs/RRDs.bundle
blib/arch/auto/RRDs/RRDs.bundle:
        /opt/local/lib/librrd.2.dylib (compatibility version 3.0.0, current version 3.13.0)
[...]
prunille:...dings/perl-shared> sudo /opt/local/bin/perl Makefile.PL   RPATH=/opt/local/lib
Writing Makefile for RRDs
prunille:...dings/perl-shared> sudo emacs -nw Makefile
prunille:...dings/perl-shared> grep '^LDDLFLAGS' Makefile
LDDLFLAGS = -bundle -undefined dynamic_lookup
prunille:...dings/perl-shared> sudo make
[...]
prunille:...dings/perl-shared> otool -L blib/arch/auto/RRDs/RRDs.bundle
blib/arch/auto/RRDs/RRDs.bundle:
        /opt/local/lib/librrd.4.dylib (compatibility version 5.0.0, current version 5.0.0)
[...]

[vinc17@…]

And that comes from the hints/darwin.sh file in the perl5.8 tarball:

*) 
   lddlflags="${ldflags} -bundle -undefined dynamic_lookup"
   case "$ld" in
       *MACOSX_DEVELOPMENT_TARGET*) ;;
       *) ld="env MACOSX_DEPLOYMENT_TARGET=10.3 ${ld}" ;;
   esac
   ;;

Shouldn't ${ldflags} be suppressed? (Not tested...)

[vinc17@…]

I've open a bug upstream: ​http://rt.perl.org/rt3/Public/Bug/Display.html?id=57518

[vinc17@…]

Removing ${ldflags} does not solve the problem, as it is added even when not included explicitly.

[vinc17@…]

patch for rrdtool 1.3.1 to solve this bug

[vinc17@…]

Instead of patching perl5.8, I found it simpler to fix rrdtool (though I think that the real problem is in perl -- however it is badly documented) with the patch I've just attached: the idea was to include -L../../src/.libs/ early enough in the command line.

Also note that this bug occurs only after some upgrades, such as from rrdtool 1.2.27, i.e. when an incompatible library is found in ${prefix}/lib and takes the precedence over the one from the build directory.

[vinc17@…]

I've submitted a bug upstream: ​RRDs Perl module links with wrong library under Mac OS X. But as I said, it may be regarded as a bug in Perl.

[markd@…]

Please test current 1.3.5 rrdtool port. It has several OS X specific bug fixes.

[vinc17@…]

I think it is fixed, though I couldn't test under conditions where I could really test the fix.

[anonymous]

Milestone Port Bugs deleted