Better -Werror,-Wunused-function workaround, missing files

Change-Id: I8bcdbf3c2b9dec25eab943212258bc2b3a82ebc7

connectivity/source/drivers/odbc/appendsqlwchars.cxx

+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * 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 <sal/config.h>
+
+#include <boost/static_assert.hpp>
+#include <rtl/ustrbuf.hxx>
+#include <sal/types.h>
+
+#include <appendsqlwchars.hxx>
+
+namespace connectivity { namespace odbc {
+
+void appendSQLWCHARs(OUStringBuffer & s, sal_Unicode* d, sal_Int32 n)
+{
+    s.append(d, n);
+}
+
+#if defined SAL_UNICODE_NOTEQUAL_WCHAR_T
+BOOST_STATIC_ASSERT(sizeof (wchar_t) == 4);
+void appendSQLWCHARs(OUStringBuffer & s, wchar_t* d, sal_Int32 n)
+{
+    for (sal_Int32 i = 0; i < n; ++i)
+    {
+        s.appendUtf32(d[i]);
+    }
+}
+#endif
+
+} }
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */

connectivity/source/drivers/odbc/appendsqlwchars.hxx

+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * 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/.
+ */
+
+#ifndef INCLUDED_CONNECTIVITY_SOURCE_DRIVERS_ODBC_APPENDSQLWCHARS_HXX
+#define INCLUDED_CONNECTIVITY_SOURCE_DRIVERS_ODBC_APPENDSQLWCHARS_HXX
+
+#include <sal/config.h>
+
+#include <rtl/ustrbuf.hxx>
+#include <sal/types.h>
+
+namespace connectivity { namespace odbc {
+
+void appendSQLWCHARs(OUStringBuffer & s, sal_Unicode* d, sal_Int32 n);
+
+#if defined SAL_UNICODE_NOTEQUAL_WCHAR_T
+void appendSQLWCHARs(OUStringBuffer & s, wchar_t* d, sal_Int32 n);
+#endif
+
+} }
+
+#endif
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */