require 'formula'

class Nvi < Formula
  desc "44BSD re-implementation of vi"
  homepage 'https://sites.google.com/a/bostic.com/keithbostic/vi/'
  url 'http://ftp.de.debian.org/debian/pool/main/n/nvi/nvi_1.81.6.orig.tar.gz'
  sha1 'ce3e0d7d476fb3bdcce9d547e170152290db0347'

  depends_on 'berkeley-db4'

  # Patches per MacPorts
  # The first corrects usage of BDB flags.
  patch :p0 do
    url "https://trac.macports.org/export/108622/trunk/dports/editors/nvi/files/patch-common__db.h"
    sha1 "8c350d51a970b31890ed2b756f7594dc54af3636"
  end

  patch :p0 do
    url "https://trac.macports.org/export/108622/trunk/dports/editors/nvi/files/patch-dist__port.h.in"
    sha1 "c710836415f999255e3617256380a4881c2281a8"
  end

  patch :p0 do
    url "https://trac.macports.org/export/108622/trunk/dports/editors/nvi/files/patch-ex_script.c.diff"
    sha1 "c70eec15f8e0dbd66777953506ab78dc77150505"
  end

  def install
    cd 'dist' do
      system "./configure", "--prefix=#{prefix}",
                            "--program-prefix=n",
                            "--disable-dependency-tracking"
      system "make"
      ENV.j1
      system "make install"
    end
  end
end