diff -drupN a/scripts/dtc/util.h b/scripts/dtc/util.h
--- a/scripts/dtc/util.h	2018-08-06 17:23:04.000000000 +0300
+++ b/scripts/dtc/util.h	2022-06-12 05:28:14.000000000 +0300
@@ -59,6 +59,7 @@ static inline void *xrealloc(void *p, si
 }
 
 extern char *xstrdup(const char *s);
+extern int xasprintf(char **strp, const char *fmt, ...);
 extern char *join_path(const char *path, const char *name);
 
 /**