Erro ao instalar o pygtk-2.12.0 :(

[fabio_k]

Eai pessoaaall 

então, seguinte, to tentando instalar o AWN, mais ai deu erro, pedia para instalar o pygtk-2.12.0, que ao tentar instalar, pedia para instalar o glib.. dai eu baixei o pacote da net, o glib-2.12.0.. ai eu instalei e tentei rodar o pygtk-2.12.0..
ai vem o seguinte erro ao tentar rodar o ./configure:

checking for GLIB - version >= 2.8.0...
*** 'pkg-config --modversion glib-2.0' returned 2.12.0, but GLIB (2.12.11)
*** was found! If pkg-config was correct, then it is best
*** to remove the old version of GLib. You may also be able to fix the error
*** by modifying your LD_LIBRARY_PATH enviroment variable, or by editing
*** /etc/ld.so.conf. Make sure you have run ldconfig if that is
*** required on your system.
*** If pkg-config was wrong, set the environment variable PKG_CONFIG_PATH
*** to point to the correct configuration files
no
configure: error: gobject is required to build pygtk?

eu tentei fazer o que ta sendo falado aqui:
http://ubuntuforums.org/archive/index.php/t-285963.html
mais não deu certo, alguém pode me ajudar?