confusing build linker error

[mingley]

Hopefully this is a simple solution to something basic I might have missed.

Trying to utilize the static feature to compile a project that consumes faiss-rs as a crate.

Example Cargo.toml

[dependencies]
...
faiss = { version = "0.12.1", features = ["static"] }

• Run cargo build

   Compiling json v0.12.4
   Compiling jni v0.21.1
   Compiling faiss v0.12.1
error: could not find native static library `faiss`, perhaps an -L flag is missing?

error: could not compile `faiss-sys` (lib) due to 1 previous error
warning: build failed, waiting for other jobs to finish...

I'm not super experienced here but, isn't the static library faiss what the static feature is supposed to build and provide in the first place? Am I missing something basic here? Sorry if this is a dumb question.

[Enet4]

You are right that the crate would automatically build the native library. Maybe this quirk happens specifically in your system. Can you provide more details about your OS, Rust toolchain, and C++ compiler?

[mingley]

OS
- x86_64 GNU/Linux, a weird internal company specific flavor of RHEL8.

mingley@mingley-ld1 [ ~/dev/test ]$ rustc --version
rustc 1.78.0 (9b00956e5 2024-04-29)
mingley@mingley-ld1 [ ~/dev/test ]$ g++ --version
g++ (GCC) 11.2.0