Using rlibs in rust

[Redfer]

hey I've been trying to compile an rlib into my project.

cargo.toml
[dependencies]

rlibtest = {"path"="../liblibtest"}

but i get this

indent preformatted text by 4 spaces
rust-analyzer failed to load workspace: Failed to read Cargo metadata from Cargo.toml file 
c:\Users\135408\Workspace\playground\bintest\Cargo.toml, cargo 1.52.0 (69767412a 2021-04-21):    
Failed to run `cargo metadata --manifest-path 
c:\Users\135408\Workspace\playground\bintest\Cargo.toml` in 
`c:\Users\135408\Workspace\playground\bintest`: `cargo metadata` exited with an error: error: failed 
to get `rlib` as a dependency of package `bintest v0.1.0 
(C:\Users\135408\Workspace\playground\bintest)` Caused by: failed to load source for dependency 
`rlib` Caused by: Unable to update C:\Users\135408\Workspace\playground\liblibtest Caused by: 
 failed to read `C:\Users\135408\Workspace\playground\liblibtest\Cargo.toml` Caused by: The 
 system 
 cannot find the path specified. (os error 3)

[jer]

dependencies expects a Cargo package, which it will build as part of the larger build.
An rlib is the final product of a compilation step. Cargo passes them around under the hood to rustc.

So the question is: what are you really trying to do there? What does your project look like and why do you think using an rlib directly is the way to go?

[kornel]

You can't use rlib with Cargo. Rust doesn't have a stable ABI, so you pretty much can't use them at all. Threat them as an internal implementation detail of Rust that is not for users.

[Redfer]

well I'm making a game engine and i wanted to use a static library to share it across projects compared to having cargo install it as a dependency every single time. And in the built version I wanted to compile the library into the binary.