linking problem on i386 vs amd64

[Kees Cook]

There appears to be a problem with libgtkmm2.4 on i386 -- when linking inkscape, we see:

libinkpre.a(event-log.o): In function `TreeModelColumn':
/usr/include/gtkmm-2.4/gtkmm/treemodelcolumn.h:140: undefined reference to `Gtk::TreeModelColumnBase::TreeModelColumnBase(unsigned int)'

For whatever reason, on i386, the linker expects to link against "unsigned int", but on both i386 and amd64, the libgtkmm-2.4 libraries only offer an "unsigned long" version:

# i386
$ objdump -C -T /usr/lib/libgtkmm-2.4.so.1 | grep "Gtk::TreeModelColumnBase::TreeModelColumnBase(unsigned"
00266190 g DF .text 00000014 Base Gtk::TreeModelColumnBase::TreeModelColumnBase(unsigned long)
00266170 g DF .text 00000014 Base Gtk::TreeModelColumnBase::TreeModelColumnBase(unsigned long)

# amd64
$ objdump -C -T /usr/lib/libgtkmm-2.4.so.1 | grep "Gtk::TreeModelColumnBase::TreeModelColumnBase(unsigned"
00000000003373a0 g DF .text 000000000000000b Base Gtk::TreeModelColumnBase::TreeModelColumnBase(unsigned long)
0000000000337390 g DF .text 000000000000000b Base Gtk::TreeModelColumnBase::TreeModelColumnBase(unsigned long)

[Kees Cook (kees)]

Attached is a mini-example. This works on amd64 and i386 on feisty, but not with the recent libgtkmm2.4 upload, and is blocking the inkscape merge.

$ sudo apt-get install libgtkmm-2.4-dev
...
$ g++ $(pkg-config --cflags --libs gtkmm-2.4) -o busted busted.cc
/tmp/ccfi8DzU.o: In function `Gtk::TreeModelColumn<int>::TreeModelColumn()':
busted.cc:(.text._ZN3Gtk15TreeModelColumnIiEC1Ev[Gtk::TreeModelColumn<int>::TreeModelColumn()]+0x16): undefined reference to `Gtk::TreeModelColumnBase::TreeModelColumnBase(unsigned int)'
collect2: ld returned 1 exit status

[Daniel Holbach (dholbach)]

This seems to work on amd64 just fine.

[Kees Cook (kees)]

Right, sorry, I wasn't very clear: linking works on amd64, but not i386.

[Murray Cumming (murrayc)]

The most recent unstable glib release has broken ABI by (mistakenly, I think) changing the typedef of GType:
http://svn.gnome.org/viewcvs/glib/trunk/gobject/gtype.h?r1=5497&r2=5560

I've sent email to gtk-list.

glib should be reverted until this is fixed, in my opinion.

[Daniel Holbach (dholbach)]

http://mail.gnome.org/archives/gtk-list/2007-June/msg00106.html for reference.

[Sebastien Bacher (seb128)]

glib2.0 (2.13.5-0ubuntu2) gutsy; urgency=low

  * debian/patches/90_from_svn_no_abi_change.patch:
    - patch from SVN, fix abi change (LP: #121461)

 -- Sebastien Bacher <email address hidden> Fri, 22 Jun 2007 11:48:59 +0200

[Gonzhauser (gonzhauser)]

Now libgtkmm-2.4-1c2a is broken since it is still built with "unsigned int".

Building the gtmm hello world results in:

/usr/lib/gcc/i486-linux-gnu/4.1.2/../../../../lib/libgtkmm-2.4.so: undefined reference to `Glib::ValueBase::init(unsigned int)'

[Gonzhauser (gonzhauser)]

libglademm-2.4-dev has to be rebuilt too.

[Daniel Holbach (dholbach)]

Is this still a problem?

[Kees Cook (kees)]

As far as I can tell, this is solved. (Strange that the gtkmm2.4 task stuck around... I would have expected it to vanish when I originally changed the Package to "glib2.0" where the actual problem was. Is this a Malone bug?)

[Gonzhauser (gonzhauser)]

I just had to rebuild packages from Ubuntu source with the new glib2.0.
The new gtkmm2.4 was still built with the old glib2.0.
Maybe a dependency issue?

[Daniel Holbach (dholbach)]

No, it should be fixed in the archive now.