Take out some 'typename's to support older versions of gcc (Heinz).

thin-provisioning/thin_rmap.cc

@@ -23,7 +23,7 @@ namespace {
 	block_manager<>::ptr
 	open_bm(string const &path) {
 		block_address nr_blocks = get_nr_blocks(path);
-		typename block_io<>::mode m = block_io<>::READ_ONLY;
+		block_io<>::mode m = block_io<>::READ_ONLY;
 		return block_manager<>::ptr(new block_manager<>(path, nr_blocks, 1, m));
 	}