-Werror,-Wunused-parameter

Change-Id: I331d769132d3b18c870c70c7abcbd9539135af55
diff --git a/unoidl/source/sourcetreeprovider.cxx b/unoidl/source/sourcetreeprovider.cxx
index f9ae3e9..850e983 100755
--- a/unoidl/source/sourcetreeprovider.cxx
+++ b/unoidl/source/sourcetreeprovider.cxx
@@ -79,6 +79,7 @@ OUString getFileName(OUString const & uri, osl::FileStatus & status) {
         }
     }
#else
    (void) uri;
    return status.getFileName();
#endif
}