Hi Iain,
If the last node in the list is void_list_node (a TREE_LIST node whose TREE_VALUE is the void_type_ node), then functions of this type do not take variable arguments. Otherwise, they do take a variable number of arguments.
> HTH That does help, a lot. It means that this decl is correct, and many others are not. I'll do some more digging to see where the void_list_node should have been appended. Thanks! Thomas