timidity: Add samples and deps to render midi

Closes Homebrew/homebrew#23911.

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

Formula/timidity.rb

@@ -5,10 +5,44 @@ class Timidity < Formula
   url 'http://downloads.sourceforge.net/project/timidity/TiMidity++/TiMidity++-2.14.0/TiMidity++-2.14.0.tar.bz2'
   sha1 '3d1d18ddf3e52412985af9a49dbe7ad345b478a8'
 
+  option "without-darwin", "Build without Darwin CoreAudio support"
+  option "without-freepats", "Build without the Freepats instrument patches from http://freepats.zenvoid.org/"
+
+  depends_on 'libogg' => :recommended
+  depends_on 'libvorbis' => :recommended
+  depends_on 'flac' => :recommended
+  depends_on 'speex' => :recommended
+
+  resource 'freepats' do
+    url 'http://freepats.zenvoid.org/freepats-20060219.zip'
+    sha1 '8b798940dc581f025effead75428dfaaba356afe'
+  end
+
   def install
-    system "./configure", "--disable-debug", "--disable-dependency-tracking",
-                          "--prefix=#{prefix}"
+    args = ["--disable-debug",
+            "--disable-dependency-tracking",
+            "--prefix=#{prefix}",
+            "--mandir=#{man}"
+           ]
+
+    formats = []
+    formats << 'darwin' if build.with? 'darwin'
+    formats << 'vorbis' if build.with? 'libogg' and build.with? 'libvorbis'
+    formats << 'flac' if build.with? 'flac'
+    formats << 'speex' if build.with? 'speex'
+
+    if formats.any?
+      args << "--enable-audio=" + formats.join(",")
+    end
+
+    system "./configure", *args
     system "make install"
+
+    if build.with? 'freepats'
+      (share/'freepats').install resource('freepats')
+      (share/'timidity/').install_symlink share/'freepats/Tone_000', share/'freepats/Drum_000'
+      File.symlink share/'freepats/freepats.cfg', share/'timidity/timidity.cfg'
+    end
   end
 
   test do