X-Git-Url: http://git.efficios.com/?p=babeltrace.git;a=blobdiff_plain;f=m4%2Fax_c___attribute__.m4;h=98999e11f63d90d671631316db9e47bde4bb7738;hp=cf3d62bbdf4f516178bb78563b7a5a04e51bde42;hb=HEAD;hpb=ec8add54f1c72f18087463aae3a84cbe34720dcf

diff --git a/m4/ax_c___attribute__.m4 b/m4/ax_c___attribute__.m4
index cf3d62bb..98999e11 100644
--- a/m4/ax_c___attribute__.m4
+++ b/m4/ax_c___attribute__.m4
@@ -1,5 +1,6 @@
+# SPDX-License-Identifier: GPL-2.0-or-later WITH LicenseRef-Autoconf-exception-macro
 # ===========================================================================
-#    http://www.gnu.org/software/autoconf-archive/ax_c___attribute__.html
+#    https://www.gnu.org/software/autoconf-archive/ax_c___attribute__.html
 # ===========================================================================
 #
 # SYNOPSIS
@@ -28,7 +29,7 @@
 #   Public License for more details.
 #
 #   You should have received a copy of the GNU General Public License along
-#   with this program. If not, see <http://www.gnu.org/licenses/>.
+#   with this program. If not, see <https://www.gnu.org/licenses/>.
 #
 #   As a special exception, the respective Autoconf Macro's copyright owner
 #   gives unlimited permission to copy, distribute and modify the configure
@@ -43,7 +44,7 @@
 #   modified version of the Autoconf Macro, you may extend this special
 #   exception to the GPL to apply to your modified version as well.
 
-#serial 8
+#serial 9
 
 AC_DEFUN([AX_C___ATTRIBUTE__], [
   AC_CACHE_CHECK([for __attribute__], [ax_cv___attribute__],