[New Package] gnuchess (#5169)

packages/gnuchess.rb

+require 'package'
+
+class Gnuchess < Package
+  description 'GNU Chess is a chess-playing program.'
+  homepage 'https://www.gnu.org/software/chess/'
+  version '6.2.7'
+  compatibility 'all'
+  source_url 'https://ftpmirror.gnu.org/chess/gnuchess-6.2.7.tar.gz'
+  source_sha256 'e536675a61abe82e61b919f6b786755441d9fcd4c21e1c82fb9e5340dd229846'
+
+  def self.build
+    system "./configure #{CREW_OPTIONS} \
+            --with-readline"
+    system "make"
+  end
+
+  def self.install
+    system "make", "DESTDIR=#{CREW_DEST_DIR}", "install"
+  end
+
+  def self.check
+    system "make", "check"
+  end
+end