lbdb: fix compilation on Mountain Lion and Mavericks

Apply three patches from chrisbarrett/lbdb to fix compilation
on Mountain Lion and Mavericks

Closes Homebrew/homebrew#24761.

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

Formula/lbdb.rb

@@ -10,6 +10,16 @@ class Lbdb < Formula
 
   head 'https://github.com/tgray/lbdb.git'
 
+  def patches
+    p = []
+    if MacOS.version >= :mountain_lion
+      p << 'https://github.com/chrisbarrett/lbdb/commit/db0440670194568bbfe2137fc063eb30cf26cb2a.diff'
+      p << 'https://github.com/chrisbarrett/lbdb/commit/b89ac6ee50e2c03c32635269d9818c045b0abb6f.diff'
+      p << 'https://github.com/chrisbarrett/lbdb/commit/6cbef5feb4fd921deb08eb52b4169647909946ae.diff'
+    end
+    p
+  end
+
   def install
     system "./configure", "--disable-dependency-tracking",
                           "--prefix=#{prefix}"