if {$type == "Tcl_Interp*"} {
				continue
			}

			lappend args $var
		}

		if {[llength $adefs_c] == 0} {
			set adefs_c "void"
		} else {
			set adefs_c [join $adefs_c {, }]
		}

		# Determine how to return in failure
		if {$rtype != "void"} {
			if {[info exists returnErrorValue]} {
				set return_failure "return(${returnErrorValue})"
			} else {
				switch -- $rtype {