Question on Linking

[siddhsql]

Consider the sherpa-onnx-jni library. It has several dependencies like piper_phonemize, espeak-ng etc.

/sherpa-onnx/build/_deps/piper_phonemize-build/CMakeFiles/piper_phonemize.dir/flags.make:

CXX_FLAGS =   -static-libstdc++ -static-libgcc  

/sherpa-onnx/build/_deps/espeak_ng-build/src/libespeak-ng/CMakeFiles/espeak-ng.dir/flags.make has no such entry.

I haven't investigated each and every dependency but I am trying to make sense of several questions:

1. How do you decide whether to include -static-libstdc++ -static-libgcc or not in a dependency?
2. Won't you end up with multiple copies of libstdc++ and libgcc in final sherpa-onnx-jni.so file (one copy from each dep that had those flags in it, and a final additional copy from statically linking sherpa-onnx-jni itself against libgcc and libstdc++) and won't it create all sorts of problems?

[csukuangfj]

What do you mean by "problems" here? Could you be more specific? If there are problems, are there any logs you can share with us?

If you think there are multiple copies of the libstdc++ in libsherpa-onnx-jni.so, could you show how you verify it? Are you able to get duplicate symbols from libsherpa-onnx-jni.so?