flactag 2.0.4

Add flactag, a MusicBrainz-enabled FLAC tagging program

It's a console-based tagging app for FLAC rips of entire CDs (with
embedded cuesheets) that seems fairly popular among the DAE folks.

Closes Homebrew/homebrew#18107.

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

Formula/flactag.rb

@@ -0,0 +1,46 @@
+require 'formula'
+
+class Flactag < Formula
+  homepage 'http://flactag.sourceforge.net/'
+  url 'http://sourceforge.net/projects/flactag/files/v2.0.4/flactag-2.0.4.tar.gz'
+  sha1 'eb62b3b8657fe26c6f838b0098fd4f176ccb454d'
+
+  depends_on 'pkg-config' => :build
+  depends_on 'asciidoc' => :build
+  depends_on 'flac'
+  depends_on 'libmusicbrainz'
+  depends_on 'neon'
+  depends_on 'libdiscid'
+  depends_on 's-lang'
+  depends_on 'unac'
+
+  def patches
+    # Don't have a2x run xmllint on the a2x-generated DocBook - it
+    # fails its own validation.
+    DATA
+  end
+
+  def install
+    ENV.append 'LDFLAGS', '-liconv'
+    system "./configure", "--disable-dependency-tracking",
+                          "--prefix=#{prefix}"
+    system "make install"
+  end
+
+  test do
+    system "#{bin}/flactag"
+  end
+end
+
+__END__
+--- flactag-2.0.4/Makefile.in.orig	2013-02-26 22:57:46.000000000 -0800
++++ flactag-2.0.4/Makefile.in	2013-02-26 22:57:57.000000000 -0800
+@@ -1137,7 +1137,7 @@
+        chmod +x ripflac
+
+ flactag.1:	flactag.1.txt Makefile
+-	a2x -f manpage flactag.1.txt
++	a2x -L -f manpage flactag.1.txt
+
+ flactag.html:	flactag.txt Makefile
+        asciidoc -a numbered flactag.txt