fix NULL-selectors

When handling 'float' messages with the list-method, the selector is set to NULL
in the incoming message.
however, passing that message on, inevitably leads to a crash :-(


Closes https://sourceforge.net/p/pure-data/bugs/1194/

svn path=/trunk/externals/zexy/; revision=17538

1 files changed, 3 insertions, 0 deletions

diff --git a/src/relay.c b/src/relay.c
index e1ea476..246e1f2 100644
--- a/src/relay.c
+++ b/src/relay.c
@@ -82,6 +82,9 @@ static void relay_list(t_relay *x, t_symbol *sel, int argc, t_atom *argv)
     f = atom_getfloat(argv);
     for (nelement = x->x_nelement, e = x->x_vec; nelement--; e++) {
       if (e->e_w.w_float == f) {
+	if (!sel) {
+	  sel=(argc==1)?gensym("float"):gensym("list");
+	}
         outlet_anything(e->e_outlet, sel, argc, argv);
         return;
       }