Add GNU typist package

packages/gtypist.rb

@@ -0,0 +1,24 @@
+require 'package'
+
+class Gtypist < Package
+  description 'Universal typing tutor.'
+  homepage 'https://www.gnu.org/software/gtypist/index.html'
+  version '2.9.5'
+  source_url 'http://ftp.gnu.org/gnu/gtypist/gtypist-2.9.5.tar.xz'
+  source_sha256 'c13af40b12479f8219ffa6c66020618c0ce305ad305590fde02d2c20eb9cf977'
+
+  depends_on "emacs" => :build
+  depends_on "ncurses"
+  depends_on "perl"
+
+  def self.build
+    system "autoreconf"
+    system "./configure", "--prefix=/usr/local"
+    system "make"
+  end
+
+  def self.install
+    system "make", "prefix=#{CREW_DEST_DIR}/usr/local", "install"
+    system "rm", "-f", "#{CREW_DEST_DIR}/usr/local/share/info/dir"
+  end
+end