Update the calling interface to "sparse()".

Start off with

	sparse_initialize(argc, argv);

which will return the number of filenames found.  You can then use that,
or just check if *argv is NULL in a loop like

	while (*argv)
		list = sparse(argv);

where you get the declaration list for each file in turn.

1 files changed, 1 insertions, 1 deletions

diff --git a/pre-process.c b/pre-process.c
index 6894f1d..cb99365 100644
--- a/pre-process.c
+++ b/pre-process.c
@@ -1135,7 +1135,7 @@ static int handle_undef(struct stream *stream, struct token **line, struct token
 	while (*sym) {
 		struct symbol *t = *sym;
 		if (t->namespace == NS_MACRO) {
-			*sym = t->next_id;
+			t->namespace = NS_INVISIBLEMACRO;
 			return 1;
 		}
 		sym = &t->next_id;