add copyright and licence notices to other files

[subdirmk.git] / subdirmk / subdirmk.ac

diff --git a/subdirmk/subdirmk.ac b/subdirmk/subdirmk.ac
index e8150f48ae9faa6fe16bd00911ce49b96e16c218..bacd1cfa64dae69b4c5f9854b5fbea714bfa5795 100644 (file)
--- a/subdirmk/subdirmk.ac
+++ b/subdirmk/subdirmk.ac
@@ -1,3 +1,8 @@
+dnl -*-autoconf-*-
+dnl subdirmk - autoconf macros
+dnl  Copyright 2019 Mark Wooding
+dnl  Copyright 2019 Ian Jackson
+dnl SPDX-License-Identifier: LGPL-2.0-or-later
 
 _SUBDIRMK_MAKEFILES=""
 AC_SUBST([_SUBDIRMK_MAKEFILES])