BSD ports Makefile-like for slackbuilds repository.

Installation:
  First, clone the slackbuilds repository:
    $ git clone git://git.slackbuilds.org/slackbuilds.git
    $ cd slackbuilds
    $ git reset --hard HEAD
  
  Copy the included Makefile into the slackbuilds repository:
    $ cp /path/to/Makefile .
  
  And, install it by issuing:
    $ make link

Uninstallation:
  Issue:
    $ cd slackbuilds
    $ make delink
    $ rm -f Makefile

Usage:
  To search a package:
    $ make search name=foo
  or case insensitively:
    $ make isearch name=foo
  or the exact name:
    $ make esearch name=foo

  To generate SlackBuild script:
    $ make template

  To list dependencies:
    $ cd $(make search name=foo)
    $ make list-depends

  To fetch a package:
    $ cd $(make search name=foo)
    $ make fetch

  To verify the downloaded sources via `make fetch`:
    $ cd $(make search name=foo)
    $ make md5

  To remove sources that don't exist in `.info` file:
    $ cd $(make search name=foo)
    $ make dist-clean
  or for all packages:
    $ make dist-clean-all

  To build a package:
    $ cd $(make search name=foo)
    $ make

  To clean up after building:
    $ cd $(make search name=foo)
    $ make clean

  To install a package:
    $ cd $(make search name=foo)
    $ make install

  To remove a package:
    $ cd $(make search name=foo)
    $ make deinstall