ruby : follow audio library change

[KitaitiMakoto]

Hello,

This pull request makes Ruby bindings follow audio library change introduced at #2759 and then makes CI fixed.

Thanks.

[ggerganov]

Btw, it would be better if the Ruby bindings start using CMake to build the ggml/whisper.cpp, instead of replicating the build with Makefiles.

[KitaitiMakoto]

I think so, though it will take several weeks for me to learn CMake.

[ggerganov]

Just to clarify, I mean that most likely the Makefile that you generate can be replaced by a single call to a cmake command. Not that you need to write CMake scripts - just use the existing CMake build system for the project.

[KitaitiMakoto]

Ah, I see. Thanks!

[houyuanjie]

I think so, though it will take several weeks for me to learn CMake.

Hi @KitaitiMakoto,
I'm sorry if I bothered you, please take a look at this template repository houyuanjie/learn_cmake_ruby, it may give you some help.

[KitaitiMakoto]

@houyuanjie
Great! I didn't know

spec.extensions = ["ext/learn_cmake_ruby/CMakeLists.txt"]

is effective. Thank you!