wordnet: Fix build, add test

Closes Homebrew/homebrew#44545.

Signed-off-by: Dominyk Tiller <dominyktiller@gmail.com>

Formula/wordnet.rb

@@ -2,9 +2,9 @@ class Wordnet < Formula
   desc "Lexical database for the English language"
   homepage "http://wordnet.princeton.edu/"
   url "http://wordnetcode.princeton.edu/3.0/WordNet-3.0.tar.bz2"
-  sha256 "6c492d0c7b4a40e7674d088191d3aa11f373bb1da60762e098b8ee2dda96ef22"
   # Version 3.1 is version 3.0 with the 3.1 dictionary.
   version "3.1"
+  sha256 "6c492d0c7b4a40e7674d088191d3aa11f373bb1da60762e098b8ee2dda96ef22"
 
   depends_on :x11
 
@@ -22,8 +22,15 @@ class Wordnet < Formula
     ENV.append_to_cflags "-DUSE_INTERP_RESULT"
     system "./configure", "--disable-debug", "--disable-dependency-tracking",
                           "--prefix=#{prefix}",
-                          "--mandir=#{man}"
+                          "--mandir=#{man}",
+                          "--with-tcl=#{MacOS.sdk_path}/usr/lib",
+                          "--with-tk=#{MacOS.sdk_path}/usr/lib"
     ENV.deparallelize
     system "make", "install"
   end
+
+  test do
+    output = pipe_output("#{bin}/wn homebrew -synsn")
+    assert_match /alcoholic beverage/, output
+  end
 end