/usr/lib/aolserver4/Makefile.module is in aolserver4-dev 4.5.1-16.
This file is owned by root:root, with mode 0o777.
It is a symlink to /usr/lib/aolserver4/../../share/aolserver4/Makefile.module
/usr/lib/aolserver4/../../share/aolserver4/Makefile.module