cadaver: fix build against neon 0.30

Closes Homebrew/homebrew#23689.
Closes Homebrew/homebrew#23966.

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

Formula/cadaver.rb

@@ -10,6 +10,11 @@ class Cadaver < Formula
   depends_on 'readline'
   depends_on 'neon'
 
+  def patches
+    # enable build with the latest neon 0.30
+    DATA
+  end
+
   def install
     neon_prefix = Formula.factory('neon').opt_prefix
 
@@ -22,3 +27,27 @@ class Cadaver < Formula
     system "make install"
   end
 end
+
+__END__
+--- cadaver-0.23.3-orig/configure	2009-12-16 01:36:26.000000000 +0300
++++ cadaver-0.23.3/configure	2013-11-04 22:44:00.000000000 +0400
+@@ -10328,7 +10328,7 @@
+ $as_echo "$ne_cv_lib_neon" >&6; }
+     if test "$ne_cv_lib_neon" = "yes"; then
+        ne_cv_lib_neonver=no
+-       for v in 27 28 29; do
++       for v in 27 28 29 30; do
+           case $ne_libver in
+           0.$v.*) ne_cv_lib_neonver=yes ;;
+           esac
+@@ -10975,8 +10975,8 @@
+     fi
+ 
+ else
+-    { $as_echo "$as_me:$LINENO: incompatible neon library version $ne_libver: wanted 0.27 28 29" >&5
+-$as_echo "$as_me: incompatible neon library version $ne_libver: wanted 0.27 28 29" >&6;}
++    { $as_echo "$as_me:$LINENO: incompatible neon library version $ne_libver: wanted 0.27 28 29 30" >&5
++$as_echo "$as_me: incompatible neon library version $ne_libver: wanted 0.27 28 29 30" >&6;}
+     neon_got_library=no
+ fi
+