Build system: implement REUSE with SPDX identifiers

[lttng-ust.git] / m4 / ax_check_rqrd_class.m4

diff --git a/m4/ax_check_rqrd_class.m4 b/m4/ax_check_rqrd_class.m4
index baa041aca5d342a06c454c23d9a9f888cdbf74e3..a984ff1527bdf0a878a1431109ed5ae72e9db56a 100644 (file)
--- a/m4/ax_check_rqrd_class.m4
+++ b/m4/ax_check_rqrd_class.m4
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: GPL-2.0-or-later WITH LicenseRef-Autoconf-exception-macro
+#
 # ===========================================================================
 #   https://www.gnu.org/software/autoconf-archive/ax_check_rqrd_class.html
 # ===========================================================================