X-Git-Url: https://git.liburcu.org/?a=blobdiff_plain;f=m4%2Fax_c___attribute__.m4;fp=m4%2Fax_c___attribute__.m4;h=98999e11f63d90d671631316db9e47bde4bb7738;hb=d001c88633f6a58e94eb73f4814976d13f61bd77;hp=6a1ede15e6315876712dc0007100ea298028b593;hpb=65eaf4b646f566324b92c25c8760a204bfbdffa8;p=userspace-rcu.git

diff --git a/m4/ax_c___attribute__.m4 b/m4/ax_c___attribute__.m4
index 6a1ede1..98999e1 100644
--- a/m4/ax_c___attribute__.m4
+++ b/m4/ax_c___attribute__.m4
@@ -1,3 +1,4 @@
+# SPDX-License-Identifier: GPL-2.0-or-later WITH LicenseRef-Autoconf-exception-macro
 # ===========================================================================
 #    https://www.gnu.org/software/autoconf-archive/ax_c___attribute__.html
 # ===========================================================================