libmp3splt: fix compilation on 10.6

libmp3splt will not build on 10.6 without regenerating the
configure script, which requires a newer version of automake.

Fixes Homebrew/homebrew#10350.

Formula/libmp3splt.rb

@@ -6,15 +6,39 @@ class Libmp3splt < Formula
   md5 '62025951f483334f14f1b9be58162094'
 
   depends_on 'pkg-config' => :build
+  depends_on 'automake' => :build
   depends_on 'gettext'
   depends_on 'pcre'
   depends_on 'libid3tag'
   depends_on 'mad'
   depends_on 'libvorbis'
 
+  def patches
+    DATA
+  end
+
   def install
+    if !(MacOS.version >= 10.7)
+      system "./autogen.sh"
+      system "autoconf"
+    end
     system "./configure", "--disable-debug", "--disable-dependency-tracking",
                           "--prefix=#{prefix}"
     system "make install"
   end
 end
+
+__END__
+diff --git a/autogen.sh b/autogen.sh
+index 68962f2..916b868 100755
+--- a/autogen.sh
++++ b/autogen.sh
+@@ -53,7 +53,7 @@ echo -n "1/6 Running autopoint... " \
+ && echo -n "3/6 Running autoheader... " \
+ && autoheader && echo "done" \
+ && echo -n "4/6 Running libtoolize... " \
+-&& libtoolize -c --force && echo "done" \
++&& glibtoolize -c --force && echo "done" \
+ && echo -n "5/6 Running autoconf... " \
+ && autoconf && echo "done" \
+ && echo -n "6/6 Running automake... " \