https://bugs.gentoo.org/919358
diff -ru a/pktrecord.h b/pktrecord.h
--- a/pktrecord.h	2025-01-05 15:55:08.349684611 +0400
+++ b/pktrecord.h	2025-01-05 15:57:49.645807285 +0400
@@ -25,7 +25,7 @@
   unsigned int included_len;   /* how much of it we actually have here */
   unsigned int ts_secs;	       /* timestamp, seconds component */
   unsigned int ts_usecs;       /* timestamp, microseconds component */
-  unsigned char *pkt_data;     /* pointer to the actual packet data */
+  const unsigned char *pkt_data;     /* pointer to the actual packet data */
 };
 
 struct prec_handle;