Formula for the Hercules emulator.

Hercules is an open source software implementation of the mainframe
System/370 and ESA/390 architectures, in addition to the new 64-bit
z/Architecture.

Formula/hercules.rb

@@ -0,0 +1,20 @@
+require 'brewkit'
+
+class Hercules <Formula
+  url 'http://www.hercules-390.org/hercules-3.06.tar.gz'
+  homepage 'http://www.hercules-390.org/'
+  md5 '3a356b251e2b7fc49ac2b7244d12d50b'
+
+ depends_on 'gawk'
+
+  def install
+    # Since Homebrew optimizes for us, tell Hercules not to.
+    # (It gets it wrong anyway.)
+    system "./configure", "--prefix=#{prefix}", 
+                          "--disable-debug", 
+                          "--disable-dependency-tracking",
+                          "--enable-optimization=no"
+    system "make"
+    system "make install"
+  end
+end