These files have been created by running ./build-aux/bootstrap with
Gnulib as at commit b1268f22f443e8e4b9e85ddf4e024875a2cd2030 (with a date
stamp of Sun Jan 10 23:06:39 2021 +0100), Autoconf 2.69, Automake 1.16.3,
Gettext 0.21 and pkg-config 0.29.2.
