espeakng.js emscripten build pipeline fails

[hennsn]

Hi guys,

The emscripten build pipeline for building the following files:
espeakng.js
espeakng.worker.data
espeakng.worker.js

... unfortunately fails for me.

I tried to reproduce all steps in this google colab and step by step modified the setup to make it work: https://colab.research.google.com/drive/1Ah_WimDCdFKZSkwKBU3Q5SyHTVVdB6Tl?usp=sharing

The main things I changed to make it work are:

1. in espeak-ng/src/ucd-tools rename CHANGELOG.md to ChangeLog.md
2. run 'emmake make clean' before 'emmake make src/libespeak-ng.la' to prevent the .o error (as referenced here: Failing to compile espeak-ng.js with emscripten under MacOS #243)
3. in src/speechPlayer/src/SpeechWaveGenerator.cpp: comment out 'using namespace std;' => solution found here: https://stackoverflow.com/questions/69558602/reference-to-function-is-ambiguous-in-c

I hope this helps and the changes maybe can be integrated with a future update.

Thanks a lot for this awesome project!

Kind regards

[synesthesiam]

I got it to work, but had to make several changes:

1. In src/ucd-tools/autogen.sh change "ChangeLog.md" to "CHANGELOG.md"
2. Add emmake make clean before every emmake make step
3. In emscripten/Makefile, replace "python" with "python3"
4. In emscripten/Makefile, add to EM_CXXFLAGS: -s EXPORTED_RUNTIME_METHODS=addFunction,removeFunction -s EXPORTED_FUNCTIONS="['_malloc', '_free']"

I also did my ./configure a little different:

./configure --prefix=/usr --without-async --without-mbrola --without-sonic --without-pcaudiolib --without-klatt --without-speechplayer --with-extdict-cmn

[jpg-gamepad]

Thank you so much, I got stuck on step 4 of your comment.