Fixes Homebrew/homebrew#14637; cppunit configure failure

Formula/cppunit.rb

@@ -7,6 +7,10 @@ class Cppunit < Formula
 
   option :universal
 
+  def patches
+    DATA
+  end
+
   def install
     ENV.universal_binary if build.universal?
 
@@ -15,3 +19,19 @@ class Cppunit < Formula
     system "make install"
   end
 end
+
+# configure script is broken, the final rm -f fails because it tries to file
+# delete a directory. superenv exposes this bug for some reason, but std-env
+# does not. Weird.
+__END__
+diff --git a/configure b/configure
+index 424eea6..11e73ad 100755
+--- a/configure
++++ b/configure
+@@ -23318,5 +23318,5 @@ echo X/* automatically generated */ |
+ echo "$as_me: error: input file $ac_prefix_conf_IN does not exist,     skip generating $ac_prefix_conf_OUT" >&2;}
+    { (exit 1); exit 1; }; }
+   fi
+-  rm -f conftest.*
++  rm -f conftest.* || true
+ fi