> On Sep 20, 2025, at 14:06, Brad Smith via ffmpeg-devel
> <[email protected]> wrote:
>
> libavformat/udp.c:283:9: warning: unused variable 'i' [-Wunused-variable]
>
> Signed-off-by: Brad Smith <[email protected]>
> ---
> libavformat/udp.c | 3 ++-
> 1 file changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/libavformat/udp.c b/libavformat/udp.c
> index e1dec49010..27b0147252 100644
> --- a/libavformat/udp.c
> +++ b/libavformat/udp.c
> @@ -282,13 +282,14 @@ static int udp_set_multicast_sources(URLContext *h,
> struct sockaddr_storage *sources,
> int nb_sources, int include)
> {
> +#if HAVE_STRUCT_IP_MREQ_SOURCE && (defined(MCAST_BLOCK_SOURCE) ||
> defined(IP_BLOCK_SOURCE))
> int i;
> +#endif
> if (addr->sa_family != AF_INET) {
> #if HAVE_STRUCT_GROUP_SOURCE_REQ && defined(MCAST_BLOCK_SOURCE)
> /* For IPv4 prefer the old approach, as that alone works reliably on
> * Windows and it also supports supplying the interface based on its
> * address. */
> - int i;
> for (i = 0; i < nb_sources; i++) {
> struct group_source_req mreqs;
> int level = addr->sa_family == AF_INET ? IPPROTO_IP :
> IPPROTO_IPV6;
Use `for (int i = 0; ;;)` will be simpler.
> --
> 2.51.0
>
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