build error

[beew]

Hi, I tried to build echko from master, it failed with these errors

src/phonetic_symbol.cpp: In member function ‘const char* ekho::PhoneticSymbol::getPcm(FILE*, int&)’:
src/phonetic_symbol.cpp:78:16: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   78 |           fread(buffer, 1, b, file);
      |           ~~~~~^~~~~~~~~~~~~~~~~~~~
src/phonetic_symbol.cpp:83:16: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   83 |           fread(buffer, 128000, b, file);
      |           ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~
src/english.cpp: In member function ‘void ekho::EkhoImpl::initEnglish()’:
src/english.cpp:64:5: error: ‘festival_initialize’ was not declared in this scope; did you mean ‘espeak_Initialize’?
   64 |     festival_initialize(load_init_files, heap_size);
      |     ^~~~~~~~~~~~~~~~~~~
      |     espeak_Initialize
src/english.cpp:69:29: error: ‘strintern’ was not declared in this scope; did you mean ‘strnlen’?
   69 |     siod_set_lval("libdir", strintern(path.c_str()));
      |                             ^~~~~~~~~
      |                             strnlen
src/english.cpp:69:5: error: ‘siod_set_lval’ was not declared in this scope
   69 |     siod_set_lval("libdir", strintern(path.c_str()));
      |     ^~~~~~~~~~~~~
src/english.cpp:73:5: error: ‘festival_load_file’ was not declared in this scope
   73 |     festival_load_file(path.c_str());
      |     ^~~~~~~~~~~~~~~~~~
src/english.cpp:82:5: error: ‘festival_tidy_up’ was not declared in this scope
   82 |     festival_tidy_up();
      |     ^~~~~~~~~~~~~~~~
mv -f src/.deps/libekho_a-ssml.Tpo src/.deps/libekho_a-ssml.Po
g++ -DHAVE_CONFIG_H -I.    -Wall -DEKHO_DATA_PATH='"/home/bernard/opt/ekho/share/ekho-data"' -g -D_REENTRANT -I/usr/include/festival -I/usr/include/speech_tools  -pthread -std=c++11  -g -O2 -MT src/libekho_a-ekho_dict.o -MD -MP -MF src/.deps/libekho_a-ekho_dict.Tpo -c -o src/libekho_a-ekho_dict.o `test -f 'src/ekho_dict.cpp' || echo './'`src/ekho_dict.cpp
src/english.cpp: In member function ‘const char* ekho::EkhoImpl::getPcmFromFestival(std::string, int&)’:
src/english.cpp:223:5: error: ‘festival_eval_command’ was not declared in this scope
  223 |     festival_eval_command(cmd);
      |     ^~~~~~~~~~~~~~~~~~~~~
src/english.cpp:242:3: error: ‘EST_Wave’ was not declared in this scope
  242 |   EST_Wave wave;
      |   ^~~~~~~~
src/test_ekho.cpp: In function ‘int main(int, char**)’:
src/test_ekho.cpp:66:9: warning: ignoring return value of ‘int system(const char*)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
   66 |   system("./ekho -l \"列出拼音\"");
      |   ~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~
src/english.cpp:243:39: error: ‘wave’ was not declared in this scope
  243 |   festival_text_to_wave(text.c_str(), wave);
      |                                       ^~~~
src/libekho.cpp: In member function ‘short int* ekho::Ekho::synth3(std::string, int&)’:
src/libekho.cpp:227:12: warning: ignoring return value of ‘size_t fread(void*, size_t, size_t, FILE*)’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
  227 |       fread(pcm, 2, samples, f);
      |       ~~~~~^~~~~~~~~~~~~~~~~~~~
src/english.cpp:243:3: error: ‘festival_text_to_wave’ was not declared in this scope
  243 |   festival_text_to_wave(text.c_str(), wave);
      |   ^~~~~~~~~~~~~~~~~~~~~
src/english.cpp:249:3: error: ‘EST_TVector’ was not declared in this scope
  249 |   EST_TVector<short> tvector;
      |   ^~~~~~~~~~~
src/english.cpp:249:15: error: expected primary-expression before ‘short’
  249 |   EST_TVector<short> tvector;
      |               ^~~~~
src/english.cpp:250:16: error: ‘tvector’ was not declared in this scope
  250 |   wave.channel(tvector, 0);

OS is Ubuntu 22.04. Tried gcc 11.30 and 9.50

ekho version v8.9.3-16-g3899e5a

ekho configured with

./configure --prefix=/home/bernard/opt/ekho --enable-festival --with-mp3lame=yes

[hgneng]

Please remove --enable-festival option, it's a bit hard to build with Festival and not recommended.

Let me know if you do want to build with Festival and I will try to write a new instruction for it.