Add more const

While I'm not very fond of "const", it's important for declarations
(it decides whether a symbol is emitted in a read-only or read/write
section). Fix all these cases, so we have writeable global data only
when we really need.

1 files changed, 2 insertions, 2 deletions

diff --git a/stream/stream.h b/stream/stream.h
index cd81e7daeb..fc8969d649 100644
--- a/stream/stream.h
+++ b/stream/stream.h
@@ -129,12 +129,12 @@ typedef struct stream_info_st {
     const char *name;
     // opts is set from ->opts
     int (*open)(struct stream *st);
-    const char **protocols;
+    const char *const *protocols;
     int priv_size;
     const void *priv_defaults;
     void *(*get_defaults)(struct stream *st);
     const struct m_option *options;
-    const char **url_options;
+    const char *const *url_options;
     bool stream_filter;
     bool can_write;
 } stream_info_t;