Add nethack formula

Formula/nethack.rb

@@ -0,0 +1,72 @@
+require 'brewkit'
+
+# Nethack the way God intended it to be played: from a terminal.
+# This build script was created referencing:
+# * http://nethack.wikia.com/wiki/Compiling#On_Mac_OS_X
+# * http://nethack.wikia.com/wiki/Pkgsrc#patch-ac_.28system.h.29
+# and copious hacking until things compiled.
+#
+# The patch applied incorporates the patch-ac above, the OS X
+# instructions from the Wiki, and whatever else needed to be
+# done.
+
+class Nethack <Formula
+  @url='http://downloads.sourceforge.net/project/nethack/nethack/3.4.3/nethack-343-src.tgz'
+  @homepage='http://www.nethack.org/index.html'
+  @version='3.4.3'
+  @md5='21479c95990eefe7650df582426457f9'
+
+  def patches
+    {
+      :p1 =>
+["http://github.com/adamv/nethack-osx/raw/82992eb6e4d8c76b05037579126293d644ef971d/patches/nethack-osx-343.patch"]
+    }
+  end
+  
+  def install
+    # Symlink makefiles
+    system 'sh sys/unix/setup.sh'
+    
+    ## We are not using the default installer
+
+    # Install to a sane location, geez.
+    nethackdir = "#{prefix}/libexec/nethack"
+    system "mkdir -p #{nethackdir}"
+    
+    inreplace "include/config.h",
+      '#  define HACKDIR "/usr/games/lib/nethackdir"',
+      "#define HACKDIR \"#{nethackdir}\""
+    
+    # Make the data first, before we munge the CFLAGS
+    system "cd dat;make"
+    
+    Dir.chdir 'dat' do
+      nethack_libexec = (libexec+'nethack')
+      
+      %w(perm logfile).each do |f|
+        system "touch #{f}"
+        nethack_libexec.install f
+      end
+      
+      # Stage the data
+      nethack_libexec.install %w(help hh cmdhelp history opthelp wizhelp dungeon license data oracles options rumors quest.dat)
+      nethack_libexec.install Dir['*.lev']
+    end
+    
+    # Make the game
+    ENV['CFLAGS'] = ENV['CFLAGS'] + " -I../include"
+    system 'cd src;make'
+    
+    bin.install 'src/nethack'
+    system "mkdir #{prefix}/libexec/nethack/save"
+  end
+  
+  def caveats
+    <<-EOS
+In order to save your game, you need to create the save directory manually:
+  mkdir #{prefix}/libexec/nethack/save
+If you can get this build script to create this folder, please patch it.
+(Currently empty folders are nuked by a perl onliner.)
+    EOS
+  end
+end