diff --git a/src/fstbin/fstrhocompose.cc b/src/fstbin/fstrhocompose.cc
+++ /dev/null
@@ -1,151 +0,0 @@
-// fstbin/fstrhocompose.cc
-
-// Copyright 2009-2011 Microsoft Corporation
-// 2013 Johns Hopkins University (author: Daniel Povey)
-
-// See ../../COPYING for clarification regarding multiple authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-// http://www.apache.org/licenses/LICENSE-2.0
-//
-// THIS CODE IS PROVIDED *AS IS* BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
-// KIND, EITHER EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION ANY IMPLIED
-// WARRANTIES OR CONDITIONS OF TITLE, FITNESS FOR A PARTICULAR PURPOSE,
-// MERCHANTABLITY OR NON-INFRINGEMENT.
-// See the Apache 2 License for the specific language governing permissions and
-// limitations under the License.
-
-
-#include "base/kaldi-common.h"
-#include "util/common-utils.h"
-#include "fst/fstlib.h"
-#include "fstext/table-matcher.h"
-#include "fstext/fstext-utils.h"
-#include "fstext/kaldi-fst-io.h"
-
-
-/*
-The following commands represent a basic test of this program.
-
-cat <<EOF | fstcompile > a.fst
-0 1 10 10
-0 1 11 11
-1
-EOF
-
-cat <<EOF | fstcompile > g.fst
-0 0 11 11 0.0
-0 1 100 100 1.0
-1 0 11 11 1.0
-1
-EOF
-fstcompose a.fst g.fst | fstprint
-# gives, as expected, the empty FST.
-
-fstrhocompose 100 a.fst g.fst | fstprint
-# gives, again correctly:
-#0 1 10 10 1
-#1
-
-
-*/
-
-int main(int argc, char *argv[]) {
- try {
- using namespace kaldi;
- using namespace fst;
- using kaldi::int32;
- /*
- fstrhocompose does composition, but treats the second FST
- specially; the symbol "rho" is taken whenever the
- composition algorithm fails to find a match for a label
- in the second FST. We rewrite "rho" with whatever label on the
- first FST we matched. This is done on both sides of the output
- if the rho FST was an acceptor, and just on the input side otherwise
- (I think)... but typically the rho FST will be an acceptor.
- We can add options for this later if needed.
- */
-
- const char *usage =
- "Composition, where the right FST has \"rest\" (rho) transition\n"
- "that are only taken where there was no match of a \"real\" label\n"
- "You supply the label corresponding to rho.\n"
- "\n"
- "Usage: fstrhocompose rho-label (fst1-rxfilename|fst1-rspecifier) "
- "(fst2-rxfilename|fst2-rspecifier) [(out-rxfilename|out-rspecifier)]\n"
- "E.g.: fstrhocompose 54 a.fst b.fst c.fst\n"
- "or: fstrhocompose 11 ark:a.fsts G.fst ark:b.fsts\n";
-
- ParseOptions po(usage);
-
- po.Read(argc, argv);
-
- if (po.NumArgs() < 3 || po.NumArgs() > 4) {
- po.PrintUsage();
- exit(1);
- }
-
- std::string
- rho_str = po.GetArg(1),
- fst1_in_str = po.GetArg(2),
- fst2_in_str = po.GetArg(3),
- fst_out_str = po.GetOptArg(4);
-
- bool is_table_1 =
- (ClassifyRspecifier(fst1_in_str, NULL, NULL) != kNoRspecifier),
- is_table_2 =
- (ClassifyRspecifier(fst2_in_str, NULL, NULL) != kNoRspecifier),
- is_table_out =
- (ClassifyWspecifier(fst_out_str, NULL, NULL, NULL) != kNoWspecifier);
-
- int32 rho_label;
- if (!ConvertStringToInteger(rho_str, &rho_label)
- || rho_label <= 0)
- KALDI_ERR << "Invalid first argument (rho label), expect positive integer.";
-
- if (is_table_out != (is_table_1 || is_table_2))
- KALDI_ERR << "Incompatible combination of archives and files";
-
- if (!is_table_1 && !is_table_2) { // Only dealing with files...
- VectorFst<StdArc> *fst1 = ReadFstKaldi(fst1_in_str);
-
- VectorFst<StdArc> *fst2 = ReadFstKaldi(fst2_in_str);
-
- VectorFst<StdArc> composed_fst;
-
- RhoCompose(*fst1, *fst2, rho_label, &composed_fst);
-
- delete fst1;
- delete fst2;
-
- WriteFstKaldi(composed_fst, fst_out_str);
- return 0;
- } else if (is_table_1 && !is_table_2) {
-
- VectorFst<StdArc> *fst2 = ReadFstKaldi(fst2_in_str);
-
- SequentialTableReader<VectorFstHolder> fst1_reader(fst1_in_str);
- TableWriter<VectorFstHolder> fst_writer(fst_out_str);
- int32 n_done = 0;
- for (; !fst1_reader.Done(); fst1_reader.Next(), n_done++) {
- VectorFst<StdArc> fst1(fst1_reader.Value());
- VectorFst<StdArc> fst_out;
- RhoCompose(fst1, *fst2, rho_label, &fst_out);
- fst_writer.Write(fst1_reader.Key(), fst_out);
- }
- KALDI_LOG << "Composed " << n_done << " FSTs.";
- return (n_done != 0 ? 0 : 1);
- } else {
- KALDI_ERR << "The combination of tables/non-tables that you "
- << "supplied is not currently supported. Either implement this, "
- << "ask the maintainers to implement it, or call this program "
- << "differently.";
- }
- } catch(const std::exception &e) {
- std::cerr << e.what();
- return -1;
- }
-}