Ok I did "jhbuild build glade3"...
It seems that the version of the stable module set is the 3.8.2 and it has the problem i wrote in the previous mail with gtkosapplication,
anyway after fixing that thing the resulting binary has the same right click problem that I have with my 3.8.5 build.
Note that right click works in other GTK2 applications so it's something related with the way glade handle it...
Anyone has a working glade/osx? Just to know if it's something that has been always broken or that has been broken by a recent version of gtk2 or glade.