PDFTK broken after GCC47 upgrade

[angelo.graziosi@…]

On Lion 10.4.7 and Xcode 4.4.1 I did

$ sudo port selfupdate
[...]

$ sudo port outdated
[...]

$ sudo port upgrade outdated
[...]

and as consequence of the upgrade of GCC47, PDFTK was rebuilt... But it failed.

Attached are the full output of the above commands and the main log.

[angelo.graziosi@…]

main log

[angelo.graziosi@…]

upgrade outdate output

[angelo.graziosi@…]

It seems I forgot an attachment... :-)

[cjones051073 (Chris Jones)]

Cc Me!

[ryandesign (Ryan Carsten Schmidt)]

Do I need to do something to fix this in pdftk or is this a bug in the gcc ports?

[howarth@…]

Are you sure this isn't ​http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41991? There are still unwinder issues with
gcj on darwin9 but not on darwin10/11/12 (because those use the compatibiity unwinder in libSystem).

[jeremyhu (Jeremy Huddleston Sequoia)]

/opt/local/bin/g++-mp-4.7 -Wall -Wextra -Weffc++ -O2 attachments.o report.o pdftk.o ../java/java_lib.o  /opt/local/lib/gcc47/gcc/x86_64-apple-darwin11/4.7.1/../../../libgcj.dylib /usr/lib/libstdc++.dylib /opt/local/lib/gcc47/gcc/x86_64-apple-darwin11/4.7.1/../../../libgcc_s.1.dylib -liconv -lz -o pdftk

The problem is that it's trying to use the host's /usr/lib/libstdc++.dylib when it should be using the one from MacPorts (which would happen automatically...)

[jeremyhu (Jeremy Huddleston Sequoia)]

I bet if you replaced '/opt/local/lib/gcc47/gcc/x86_64-apple-darwin11/4.7.1/../../../libgcj.dylib /usr/lib/libstdc++.dylib /opt/local/lib/gcc47/gcc/x86_64-apple-darwin11/4.7.1/../../../libgcc_s.1.dylib' with '-lgcj' it would work fine.

[howarth@…]

The origin of the gcj problems with darwin9 and earlier is that the unwinder derived from libgcc doesn't grok
the epilogue notes in the eh_frames emitted starting with FSF gcc 4.3...

​http://gcc.gnu.org/bugzilla/show_bug.cgi?id=41991

A patch to suppress these eh_frame epilogue notes on darwin9 and earlier was proposed in this thread...

​http://gcc.gnu.org/ml/gcc-patches/2010-08/msg01037.html

but never completed. Note these epilogue notes fortunately aren't problematic on darwin10 and later because they
are running the compatibility unwinder from libSystem instead.

[cooljeanius (Eric Gallager)]

Cc Me!

[maehne (Torsten Maehne)]

Cc Me!

[ryandesign (Ryan Carsten Schmidt)]

Please check if this is still a problem with pdftk 2.02. If using the gcc45 variant, try the gcc47 variant instead.