Support for system ggml?

[ysimonson]

Is it presently possible to dynamically link against a system-installed instance of ggml? I think there isn't because the cmake option isn't set anywhere, but wanted to make sure I'm not missing something.

Context: I'm hoping to build something that uses both this library and whisper-rs. This isn't possible when both libraries statically link ggml, because the symbols conflict. I'm hoping it'll be possible with dynamic linking, and am separately experimenting with adding system ggml support in whisper-rs.

[ysimonson]

I've got something compiling in https://github.com/ysimonson/llama-cpp-rs/tree/shared-ggml. Will try to integrate the two together and see if it works.