'How do I build the right *.SO library for Android?

I wrote a small Dynamic library for Android in C++

When trying to open the library, an error occurs:

dlopen failed: library "libFunct.so" not found ndk_StdJni_set State Code__I.in__

How can I fix it, apparently me need to add some header file from NDK?

NDK has never been used, the first time I'm trying to write a Library for android, In pure C, just a couple of functions

NDK(JNI) I don't need it and don't intend to use it.

Sources

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