Change to gmodule

["Padraig O'Briain" <Padraig Obriain Sun COM>]

The file glib/gmodule.c was changed on May 27th.

One effect of this change is to change the behaviour of the GTK_MODULES 
environment variable. The code no longer uses LD_LIBRARY_PATH to search for a 
module. This is because dlopen() is no longer used to find the module.

Is the change of behaviour intended? Is there now a requirement to specify the 
full pathname for a module in the GTK_MODULES environment variable?

Padraig