Moreover, FYI the debian/rules from the original source package of amavisd-new (apt-get source amavisd-new;dpkg-source -x amavisd-new_2.11.0-6.1ubuntu1.dsc; nano amavisd-new-2.11.0/debian/rules) is different than the one here: https://salsa.debian.org/debian/amavisd-new/-/blob/master/debian/rules, so I think I shouldn't blindly follow debian/rules from debian salsa and to avoid FTBFS I deleted the part mentioned in the 2nd comment from the top.
Moreover, FYI the debian/rules from the original source package of amavisd-new (apt-get source amavisd- new;dpkg- source -x amavisd- new_2.11. 0-6.1ubuntu1. dsc; nano amavisd- new-2.11. 0/debian/ rules) is different than the one here: https:/ /salsa. debian. org/debian/ amavisd- new/-/blob/ master/ debian/ rules, so I think I shouldn't blindly follow debian/rules from debian salsa and to avoid FTBFS I deleted the part mentioned in the 2nd comment from the top.