Ent 1.0

Closes Homebrew/homebrew#11860.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>

Formula/ent.rb

@@ -0,0 +1,34 @@
+require 'formula'
+
+class Ent < Formula
+  homepage 'http://www.fourmilab.ch/random/'
+  # This tarball is versioned and smaller, though non-official
+  url 'http://github.com/psm14/ent/tarball/1.0'
+  sha1 'ab45969decd8e79031e9cd1a74dbec3edb802e98'
+
+  def install
+    system "make", "CC=#{ENV.cc}", "CFLAGS=#{ENV.cflags}"
+    bin.install "ent"
+
+    # Used in the below test
+    prefix.install "entest.mas", "entitle.gif"
+  end
+
+  def test
+    # Adapted from the test in the Makefile and entest.bat
+    mktemp do
+      system "#{bin}/ent #{prefix}/entitle.gif > entest.bak"
+      # The single > here was also in entest.bat
+      system "#{bin}/ent -c #{prefix}/entitle.gif > entest.bak"
+      system "#{bin}/ent -fc #{prefix}/entitle.gif >> entest.bak"
+      system "#{bin}/ent -b #{prefix}/entitle.gif >> entest.bak"
+      system "#{bin}/ent -bc #{prefix}/entitle.gif >> entest.bak"
+      system "#{bin}/ent -t #{prefix}/entitle.gif >> entest.bak"
+      system "#{bin}/ent -ct #{prefix}/entitle.gif >> entest.bak"
+      system "#{bin}/ent -ft #{prefix}/entitle.gif >> entest.bak"
+      system "#{bin}/ent -bt #{prefix}/entitle.gif >> entest.bak"
+      system "#{bin}/ent -bct #{prefix}/entitle.gif >> entest.bak"
+      system "diff entest.bak #{prefix}/entest.mas"
+    end
+  end
+end