https://723420.bugs.gentoo.org/attachment.cgi?id=639692
--- a/util/alevt/vbi.c
+++ b/util/alevt/vbi.c
@@ -35,7 +35,6 @@
 
 static u8 *rawbuf; // one common buffer for raw vbi data
 static int rawbuf_size; // its current size
-u_int16_t sid;
 static char *vbi_names[]
 	= { "/dev/vbi", "/dev/vbi0", "/dev/video0", "/dev/dvb/adapter0/demux0",
 	NULL }; // default device names if none was given at the command line