altos/lisp: more GC issues. add patom

Use global ao_lisp_stack instead of local stack so that gc
moves of that item work.

Signed-off-by: Keith Packard <keithp@keithp.com>

1 files changed, 11 insertions, 0 deletions

diff --git a/src/lisp/ao_lisp_cons.c b/src/lisp/ao_lisp_cons.c
index 4929b91c..7d3ca68d 100644
--- a/src/lisp/ao_lisp_cons.c
+++ b/src/lisp/ao_lisp_cons.c
@@ -83,3 +83,14 @@ ao_lisp_cons_print(ao_poly c)
 	}
 	printf(")");
 }
+
+void
+ao_lisp_cons_patom(ao_poly c)
+{
+	struct ao_lisp_cons *cons = ao_lisp_poly_cons(c);
+
+	while (cons) {
+		ao_lisp_poly_patom(cons->car);
+		cons = ao_lisp_poly_cons(cons->cdr);
+	}
+}