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A problem about installing tclcl-1.0b8




	I have download the file ns-allinone-2.1b5a.tar.gz. And I want to install it on one sparc-sun-solaris2.5.1 workstation.
	Found this error while installing:
"Tcl.cc",line 358: Error: TclObject::enum_tracedVars() is expected to return a value.

And I check the file Tcl.cc, found:
//Enumerating through all traced variables, but still use the trace() 
//callback.
int TclObject::enum_tracedVars()
{
	for (InstVar* p = instvar_; p!=0; p=p->next_){
		if(p->tracedvar()&&p->tracedvar()->tracer())
			p->tracedvar()->tracer()->trace(p->tracedvar());
	}
	
	TracedVar* var = tracedvar_;
	for(;var!=0;var=var->next_)
		if(var->tracer())
			var->tracer()->trace(var);
}

please tell me how to do. Thanks.