Merge pull request #1913 from uberhacker/add-argon2-package

Add argon2 package

packages/argon2.rb

+require 'package'
+
+class Argon2 < Package
+  description 'The password hash Argon2, winner of PHC'
+  homepage 'https://github.com/P-H-C/phc-winner-argon2'
+  version '20171227'
+  source_url 'https://github.com/P-H-C/phc-winner-argon2/archive/20171227.tar.gz'
+  source_sha256 'eaea0172c1f4ee4550d1b6c9ce01aab8d1ab66b4207776aa67991eb5872fdcd8'
+
+  binary_url ({
+  })
+  binary_sha256 ({
+  })
+
+  def self.build
+    system 'make'
+  end
+
+  def self.install
+    system 'make',
+           "PREFIX=#{CREW_PREFIX}",
+           "LIBDIR=#{CREW_LIB_PREFIX}",
+           "DESTDIR=#{CREW_DEST_DIR}",
+           'install'
+    system "install -Dm644 man/argon2.1 #{CREW_DEST_PREFIX}/share/man/man1/argon2.1"
+  end
+end