Trouble in installing Gnucash on Mac OS 15.6 Intel

[Xavier Lafon]

Hello,
I am new with Mac (OS 15.6, Intel) and have some trouble installing Gnucash.

I have X11 installed yet
I installed Fink 0.9.0 (from http://www.finkproject.org/download/)
and checked new packages by 'fink scanpackages; fink index'

Then I installed Gnucash by :
sudo apt-get install gnucash

and when I launch gnucash from an X11 term, I get :
bash-3.2$ gnucash
Gnome-Message: gnome_execute_async_with_env_fds: returning -1


Can you help me, please ?

Best regards,
XAvier