Broken Metacity support

[madchicken]

Hi to all. Just compiled and installed the latest compiz from git. I compiled it with all options activated, configure output this:

the following optional plugins will be compiled:
gconf: yes
place: yes
dbus: yes
annotate: yes
svg: yes

and the following optional features will be compiled:
svg: no
gtk: yes
metacity: yes
gnome: yes
kde: no

As you can see metacity support is enabled but I can't see the tab under gnome-theme-manager.
Compiz renders my last metacity theme, but it won't let me change it.

Can someone help me please?

Regards,
Pierpaolo