Including additional dynamic libraries

[torkleyy]

I'd like to include .so files for the vulkan validation layers (e.g. libVkLayer_core_validation.so) in my APK. How can I do that?

[hansihe]

I also need to do something like this. As I understand it, there was some support for this before, but that seems to have been removed?

I am sure I can cobble something together and make a PR, but if anyone more familiar with the project has a preferred way to implement this in mind, any comments would be greatly appreciated.

[katyo]

I have same issue with bindings which depends from bundled shared object.
Currently only libc++_shared.so can be packaged automatically when it used.

[katyo]

I think the optimal way to list all required shared objects (for packaging it together) using readelf, like the following:
https://github.com/rust-windowing/android-rs-glue/blob/096c6dd62dfa3e6c233f9ed3aafedfb9dab57871/cargo-apk/src/ops/build/compile.rs#L332-L353
Of course, we should read shared objects recursively and filter out android libraries (like libandroid.so, liblog.so, etc.)
I still don't find out how to get all libraries search paths from cargo.
The libraries search paths can be simply extracted from rustc args.

[katyo]

@torkleyy Can you test cargo-apk from my PR above? Or let me do it.