Making changes to PostgreSQL's configure logic so as to have contrib modules installed in a specific directory and make them use PGXS?

[postgres user <postgresuser1989@xxxxxxxxx>]

Hi,

I want to configure my PostgreSQL installation in such a manner such that the contrib modules of the PostgreSQL distribution are stored in a specific directory and they should use the PGXS extensions management system supported by Postgres, as they are currently packaged along with Postgres and follow a specific directory structure they are installed along with Postgres but I don't want that. I want all those contrib module extensions to use a separate pg_config and hence want their makefiles to use PGXS. How do I go about doing that.

Thanks