Re: pg_migrator mention in documentation

> > The makefile for pg_migrator currently assumes by default that it is
> > located under contrib/.  Which confuses me.
>
> You can compile pg_migrator by copying it to /contrib, or using PGXS;
> both work.  Read the 15-step install instructions for details:
>
> (7)  Build pg_migrator
>
> For pg_migrator source installs, keep in mind the compile must use the
> _new_ PostgreSQL source directory and be installed in the new Postgres
> install directory.
>
> The simplest build option is to point to the top of the PostgreSQL
> source tree by running something like:
>
>        gmake top_builddir=/usr/src/pgsql install
>
> Replace '/usr/src/pgsql' with your source directory.  pg_migrator also
> understands the 'prefix=' specification if you installed Postgres in a
> custom location.  Another build option is to copy the pg_migrator
> directory into contrib/pg_migrator in the new PostgreSQL source tree and
> run a simple 'gmake install'.  A third install method is to use PGXS
> (assuming the new 'pg_config' is in your $PATH):
>
>        USE_PGXS=1 gmake prefix=/usr/local/pgsql.new install