pkgsrc. It is modeled after lang/python/pyversion.mk and like it
could be influenced by user- and package-settable variables.
More precisely, tt's behaviour is controlled by the following
two variables:
- PGSQL_VERSION_DEFAULT
A user-settable variable to choose the default PostgreSQL version.
Default: 74
- PGSQL_VERSIONS_ACCEPTED
A package-settable list of PostgreSQL versions accepted by the package.
Default: 74 73
After postgresql-* has been reimported as postgresql73* all depending
packages should be changed to use mk/pgsql.buildlink3.mk.
