-dnl Copyright © 2015 Nick Bowler
-dnl
-dnl License WTFPL2: Do What The Fuck You Want To Public License, version 2.
-dnl This is free software: you are free to do what the fuck you want to.
-dnl There is NO WARRANTY, to the extent permitted by law.
+AT_COPYRIGHT([dnl
+Copyright © 2015,2019-2021 Nick Bowler
+License WTFPL2: Do What The Fuck You Want To Public License, version 2.
+This is free software: you are free to do what the fuck you want to.
+There is NO WARRANTY, to the extent permitted by law.])