Thanks for bf for pointing this out. I shall leave this for another weekend. It should be trivial to add in. It’s just code. No database changes.

http://www.freshports.org/search.php?stype=depends_all&method=match&query=archivers%2Fzip&num=100&orderby=category&orderbyupdown=asc&search=Search

SELECT PortsDependenciesAdd (’lang/gcc45′, ‘lang/perl5.8′, ‘B’);

Which looks like this:

CREATE OR REPLACE FUNCTION PortsDependenciesAdd (text, text, text) returns
int AS $$
  DECLARE
    p_PortName              ALIAS FOR $1;
    p_PortNameDependentUpon ALIAS FOR $2;
    p_DependencyType        ALIAS FOR $3;

    l_PortID           int;
    l_PortIDDependency int;
    OID                int8;

  BEGIN
    select GetPort(p_PortName)
      INTO l_PortID;

    select GetPort(p_PortNameDependentUpon)
      INTO l_PortIDDependency;

    if l_PortID IS NOT NULL AND l_PortIDDependency IS NOT NULL then
      INSERT INTO port_dependencies (port_id, port_id_dependent_upon, dependency_type)
            VALUES (l_PortID, l_PortIDDependency, p_DependencyType);
      RETURN 1;
    else
      if l_PortID IS NULL then
        RAISE EXCEPTION 'cannot find this port: %', p_PortName;
      end if;
      if l_PortIDDependency IS NULL then
        RAISE EXCEPTION 'cannot find this port: %', p_PortNameDependentUpon;
      end if;
    end if;

    RETURN 0;
  END;
$$  LANGUAGE 'plpgsql';

The B depends are
archivers/zip - devel/gmake - devel/binutils - devel/bison - lang/perl5.8

The R depends are
devel/binutils

The L depends are
math/gmp - math/mpfr - math/mpc - converters/libiconv

<aDe> my @shizzle = map { s/^.*\/usr\/ports\///;$_ } split(/ /, $string);
<aDe> print join(' - ', @shizzle) . "\n";
<aDe> [ade@lab:~] 179% ./x
<aDe> security/fpc-hash - archivers/fpc-paszlib - devel/fpc-pthread

Now for the big work: populating and maintaining the new table.

  SELECT port_id,
         port_id_dependent_upon,
         dependency_type,
         categories.name    as category,
         element.name       as port
    FROM port_dependencies
         LEFT OUTER JOIN ports      ON ports.id         = port_dependencies.port_id_dependent_upon
         LEFT OUTER JOIN categories ON categories.id    = ports.category_id
         LEFT OUTER JOIN element    ON ports.element_id = element.id
   WHERE port_id = 22514