diff --git a/Utilities/cmtar/compat/basename.c b/Utilities/cmtar/compat/basename.c
index ddaf89d32..f44d41402 100644
--- a/Utilities/cmtar/compat/basename.c
+++ b/Utilities/cmtar/compat/basename.c
@@ -29,6 +29,7 @@
 
 #ifndef lint
 static char rcsid[] = "$OpenBSD: basename.c,v 1.4 1999/05/30 17:10:30 espie Exp $";
+const char* libtar_compat_basename_getrcsid() { return rcsid; }
 #endif /* not lint */
 
 #include <errno.h>
diff --git a/Utilities/cmtar/compat/dirname.c b/Utilities/cmtar/compat/dirname.c
index f05a3819d..aff4cb3af 100644
--- a/Utilities/cmtar/compat/dirname.c
+++ b/Utilities/cmtar/compat/dirname.c
@@ -29,6 +29,7 @@
 
 #ifndef lint
 static char rcsid[] = "$OpenBSD: dirname.c,v 1.4 1999/05/30 17:10:30 espie Exp $";
+const char* libtar_compat_dirname_getrcsid() { return rcsid; }
 #endif /* not lint */
 
 #include <errno.h>