Build system: implement REUSE with SPDX identifiers

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

diff --git a/m4/ax_require_defined.m4 b/m4/ax_require_defined.m4
index 17c3eab7dafde6c1358c7c189bbe44a6e14995a7..aa6198f82273b386a7bb9f3356ecc720e3b45e2d 100644 (file)
--- a/m4/ax_require_defined.m4
+++ b/m4/ax_require_defined.m4
@@ -1,3 +1,5 @@
+# SPDX-License-Identifier: FSFAP
+#
 # ===========================================================================
 #    https://www.gnu.org/software/autoconf-archive/ax_require_defined.html
 # ===========================================================================