-AT_COPYRIGHT([dnl
-Copyright © 2015, 2019-2023 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.
+AT_COPYRIGHT([Copyright (C) 2015, 2019-2024 Nick Bowler
+License GPLv3+: GNU General Public License version 3 or any later version.
+This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.])
m4_include([snippet/at-compat.at])
AT_COLOR_TESTS
m4_divert_push([PREPARE_TESTS])dnl
+# Avoid inheriting the user's preference for Automake silent rules from the
+# environment, as this changes make output leading to failed tests.
+AS_UNSET([enable_silent_rules])
+
# Reduce influence from the toplevel "make" invocation on test cases.
AS_UNSET([MAKEFLAGS])
AS_UNSET([MAKELEVEL])