Synfig Animation Studio

Fixed in SVN r1242. Thanks for reporting.

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When I commented out the line "#include <sigc++/compatibility.h>"
I've got these errors

In file included from mod_mirror/state_mirror.cpp:39:
mod_mirror/../canvasview.h:204: ошибка: ‘SigC’ не был
декларирован (error: 'SigC' wasn't declared)
[skipped]
In file included from mod_mirror/../dialog_tooloptions.h:33,
from mod_mirror/state_mirror.cpp:47:
mod_mirror/../dockable.h:62: ошибка: ‘SigC’ не был
декларирован (error: 'SigC' wasn't declared)
[skipped]
make[3]: *** [synfigstudio-state_mirror.o] Ошибка 1

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libsigc++-2.1.1/ChangeLog says this:

------------------------------------------------------------
2007-08-14 Murray Cumming <murrayc@murrayc.com>

* sigc++/Makefile.am:
* sigc++/compatibility.h: Removed this header.
* sigc++/bind.h:
* sigc++/bind_return.h:
* sigc++/connection.h:
* sigc++/macros/class_slot.h.m4:
* sigc++/macros/hide.h.m4:
* sigc++/macros/method_slot.h.m4:
* sigc++/macros/object_slot.h.m4:
* sigc++/macros/retype.h.m4:
* sigc++/macros/signal.h.m4:
* sigc++/macros/slot.h.m4:
* sigc++/object.h:
* sigc++/retype_return.h: Removed deprecated
compatibility API, to probably fix the build with
some compilers, such as some versions of the Sun Forte C++
CC compiler. Some of these headers are now mostly empty and
should be removed later.
This API has been deprecated April 2004, and
is not widely used, so it seems safe to do this now.
------------------------------------------------------------

I commented out the line that mentions compatibility.h in
synfig-studio/trunk/src/gtkmm/app.h and everything still seems to be OK.
Is the fix as simple as that?

More info from IRC and the site:

http://www.synfig.com/2007/10/11/synfig-irregular-news/#comment-260

I've got an include error due to sigc++/compatibility.h is missing.
Is there any way to use ‘sigc’ namespace instead of ‘SigC’ in the
sources?

12:31 <pabs3> dinosaur: which version of the sigc++ headers do you have
installed?
12:39 <dinosaur> sigc++ version is 2.1.1
12:44 <dinosaur> libsigc++2.0-devel-2.1.1-2mdv2008.0
12:44 <dinosaur> the exactly name of the rpm-package
12:51 <pabs3> dinosaur: hmm, newer version that debian has
12:51 <pabs3> can you upload the result of 'rpm -ql
libsigc++2.0-devel-2.1.1-2mdv2008.0' to pastebin.ca?
12:58 <dinosaur> http://pastebin.ca/834706
12:59 <dinosaur> post will be expired in 1 hour

The post did not contain any mention of compatibility.h

13:02 < pabs3> dinosaur: can you file a bug about this? it unfortunately
isn't trivial to fix
13:03 < pabs3> 13 files use the SigC namespace