I'm not familiar with doing this myself, but I believe you have to specifically ask for that library to be linked with https://doc.rust-lang.org/cargo/reference/build-scripts.html#cargorustc-link-liblib
#Static library search path
obsidian tangle
you should put it in OUT_DIR, because that's where build script outputs should be stored, but that doesn't automatically link it
oh, [digs up old memories of C compiler flags], you want rustc-link-search to point at the dir where libwhisper.a is
(and not a C file)
(ideally some subdirectory of OUT_DIR you create so you're not indiscriminately adding the whole thing, I suppose)