backporting thunar

[aucuneimportance@free.fr]

Hello,

I'm trying to backport thunar. I've discovered recently the backport.org apt
source. After backporting thunar following "my" own path (which is obviosuly
rather close to the advices found on backports.org) I reached the following
state :

apt-cache policy thunar
thunar:
 Installed: (none)
 Candidate: 0.9.0-8
 Version table:
    0.9.0-8 0
       500 file: apt-build/main Packages (<== mine, apt-build context)
    0.9.0-2~bpo40+2 0
         1 http://www.backports.org etch-backports/main Packages
    0.4.0rc1-3 0
       500 http://ftp.de.debian.org stable/main Packages

When trying to install thunar/etc-backports :
The following packages have unmet dependencies:
 thunar: Depends: libthunar-vfs-1-2 (>= 0.9.0) but it is not ...
         Depends: libxfce4util4 (>= 4.4.2) but 4.3.99.2-1 is to be installed
         Depends: xfce4-panel (>= 4.4.2) but 4.3.99.2-2 is to be installed

When trying to install mine :
apt-get -s install thunar
Reading package lists... Done
Building dependency tree... Done
...
Inst thunar-data [0.9.0-2~bpo40+2] (0.9.0-8 cabernet138:localhost)
Inst libthunar-vfs-1-2 (0.9.0-8 cabernet138:localhost)
Inst thunar (0.9.0-8 cabernet138:localhost)

Note that I think that the difference is that I also backported libexo-0.3.
It's seems that it's possible to install thunar/0.9.0-8 without upgrading xfce4.

The question is now : I'm wrong somewhere ?

And further more : How can we "compare" backports ? I did not find very clear
criteria related to the question : what'is a "good" backport ? How can we say
that a proposed backport is "better" than another one ?


NB / dpkg-depeck dpkg-buildpackage on thunar gives the following result :
ii  libdbus-glib-1-dev     0.71-3
ii  libexif-dev            0.6.13-5etch2
ii  libexo-0.3-dev         0.3.4-6
ii  libfam-dev             2.7.0-12
ii  libjpeg62-dev          6b-13
ii  libpango1.0-dev        1.14.8-5
ii  libpcre3-dev           6.7+7.4-2
ii  libstartup-notificatio 0.8-2
ii  libxcursor-dev         1.1.7-4
ii  libxfce4util-dev       4.3.99.2-1
ii  libxml-parser-perl     2.34-4.2
ii  libxrandr-dev          1.1.0.2-5
ii  libxsloader-perl       0.07-1
ii  linux-libc-dev         2.6.24-5
ii  xfce4-panel-dev        4.3.99.2-2


Buy the way we can note that libgtk2.0-dev is not a direct requirement [as
stated in debian/control](but is given by libexo-0.3-dev /and others/)

PS : I'm not ready to contribute to the backports.org task, I need to clearly
understand some details before ... but may be ;)

Cheers