diff -r 000000000000 -r 6474c204b198 extensions/spellcheck/src/mozGenericWordUtils.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/extensions/spellcheck/src/mozGenericWordUtils.cpp	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,44 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+#include "mozGenericWordUtils.h"
+
+NS_IMPL_ISUPPORTS(mozGenericWordUtils, mozISpellI18NUtil)
+
+  // do something sensible but generic ... eventually.  For now whine.
+
+mozGenericWordUtils::mozGenericWordUtils()
+{
+  /* member initializers and constructor code */
+}
+
+mozGenericWordUtils::~mozGenericWordUtils()
+{
+  /* destructor code */
+}
+
+/* readonly attribute wstring language; */
+NS_IMETHODIMP mozGenericWordUtils::GetLanguage(char16_t * *aLanguage)
+{
+    return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+/* void GetRootForm (in wstring word, in uint32_t type, [array, size_is (count)] out wstring words, out uint32_t count); */
+NS_IMETHODIMP mozGenericWordUtils::GetRootForm(const char16_t *word, uint32_t type, char16_t ***words, uint32_t *count)
+{
+    return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+/* void FromRootForm (in wstring word, [array, size_is (icount)] in wstring iwords, in uint32_t icount, [array, size_is (ocount)] out wstring owords, out uint32_t ocount); */
+NS_IMETHODIMP mozGenericWordUtils::FromRootForm(const char16_t *word, const char16_t **iwords, uint32_t icount, char16_t ***owords, uint32_t *ocount)
+{
+    return NS_ERROR_NOT_IMPLEMENTED;
+}
+
+/* void FindNextWord (in wstring word, in uint32_t length, in uint32_t offset, out uint32_t begin, out uint32_t end); */
+NS_IMETHODIMP mozGenericWordUtils::FindNextWord(const char16_t *word, uint32_t length, uint32_t offset, int32_t *begin, int32_t *end)
+{
+    return NS_ERROR_NOT_IMPLEMENTED;
+}
+