[gtkmm] Using gmmproc: not expand _CONVERT

[Alberto Paro <alberto paro homeunix org>]

Trying to port to c++ diacanvas, I notice that there are not automatic 
conversion of wrap function in some class (not all).

Here there is an example:

constraint.hg:

_DEFS(diacanvasmm,diacanvas)

_PINCLUDE(glibmm/private/object_p.h)
namespace Dia
{
class Constraint: public Glib::Object
{
       
_CLASS_GOBJECT(Constraint,DiaConstraint,DIA_TYPE_CONSTRAINT,Glib::Object,GObject)

public:

 _WRAP_METHOD(bool has_variables(),dia_constraint_has_variables)
 _WRAP_METHOD(void optimize(),dia_constraint_optimize)
};
}


Generated Constraint.cc

....
bool Constraint::has_variables()
{
 return 
_CONVERT(gboolean,bool,dia_constraint_has_variables`'(ifelse(`',1,const_cast<__CNAME__*>(gobj()),gobj())`'ifelse(`',,,`, 
')));
}

void Constraint::optimize()
{
 
_CONVERT(void,void,dia_constraint_optimize`'(ifelse(`',1,const_cast<__CNAME__*>(gobj()),gobj())`'ifelse(`',,,`, 
')));
}
....

Do you have some suggestions?

Thanks,
        Alberto