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opened

on Feb 7, 2020

· edited by LeSplooch

Hello. After following the steps in your "Quickstart" section of the README.md, I tried compiling a crate using deepspeech-rs v0.6.1 on Windows 10, and I'm having the following error :

LINK : fatal error LNK1181: cannot open input file 'deepspeech.lib'

It looks like the compiler can't find a file but I don't know how to get it.

I'm really sorry if it's not the right place to talk about this but I can't find help anywhere else.

Member

Have you added the directory with deepspeech.lib to your path?

Author

I didn't get any file called deepspeech.lib with the tar.gz file you mentioned on your README and the native_client version for Windows, and the native_client is added to my path.

Member

Hmm I see, that's a valid question. There is a .lib file in the windows native client but it's called differently.

Author

Indeed, there is a file called libdeepspeech.so.if.lib.

Member

@LeSplooch if you clone this repo, and change the "deepspeech" in sys/build.rs to deepspeech.so, does it work then?

Author

@LeSplooch if you clone this repo, and change the "deepspeech" in sys/build.rs to deepspeech.so, does it work then?

Oh sorry I just saw your post, I'll try this asap and let you know about the result.

Member

@LeSplooch don't worry I got the idea just now and was already afraid you dismissed deepspeech completely. With rust-lang/rust#58713 we might make the usage of .lib files obsolete.

Also if my suggestion doesnt work, try changing it to deepspeech.so.if.

Author

I was about to do it but I've never worked with folder crates yet, so I'd need a little help in order to import that into my code. I just cargo add everything most of the time or link the git in Cargo.toml.

Member

@LeSplooch the docs for path dependencies are here: https://doc.rust-lang.org/cargo/reference/specifying-dependencies.html#specifying-path-dependencies

You could clone deepspeech-rs and then point to the local clone via path instead of the crates.io version.

Author

I'm really sorry for the delayed answer. So deepspeech-rs is cloned and linked in Cargo.toml and ./deepspeech-rs/sys/build.rs has been modified to this :

fn main() {
    println!("cargo:rustc-link-lib=deepspeech.so");
}

But now I have a problem : apparently, Model.enable_decoder_with_lm() doesn't exist anymore, and I don't know what to replace it with.

Member

It's not needed any more, see 9876695

Author

I still have a link.exe fatal error message with both deepspeech.so and deepspeech.so.if.

= note: LINK : fatal error LNK1181: cannot open input file 'deepspeech.so.lib'
= note: LINK : fatal error LNK1181: cannot open input file 'deepspeech.so.if.lib'

Member

That issue is because the linker can't find those files. But they exist, you just have to tell the directory the downloaded precompiled library lies inside. Have you added it to the PATH environment variable?

Author

The absolute path to native_client is among my Path env vars.

I'm also having this problem.

I guess I should add something a little more helpful...

I've changed build.rs locally to exactly the name of the file I downloaded:

#[cfg(target_os = "windows")]
fn main() {
    println!("cargo:rustc-link-lib=libdeepspeech.so.if");
}

It still doesn't work, even though the folder is in my path. where libdeepspeech.so.if.lib succeeds (I'm using Cygwin).

EDIT: libdeepspeech.so like you suggested also doesn't work.

I got it!

My local copy of build.rs now looks like this:

// It's bugged on windows >:(
#[cfg(target_os = "windows")]
fn main() {
    println!(r"cargo:rustc-link-search=C:\deepspeech");
    println!("cargo:rustc-link-lib=libdeepspeech.so.if");
}

#[cfg(not(target_os = "windows"))]
fn main() {
    println!("cargo:rustc-link-lib=deepspeech");
}

I also have put the folder I downloaded where I marked above. (I had it deeper in my file tree, but my username has a space in it and rustc was having a hard time with it.) I also added that folder to PATH.

Yay! Hope this helps @LeSplooch!

Member

@gamma-delta Awesome! Can you put this into a PR?

Maybe! I'm not the best at Github.

Probably what I'll do is set it up with an environment variable, and include in the install instructions to set it to wherever you put the files. Then build.rs just queries the variable.

retep998

For the record, if you want to tell the linker on Windows where you have libraries installed, you need to modify LIB, not PATH. LIB is used to find libraries (foo.lib) at link time, PATH is used to find binaries (foo.dll/foo.exe) at run time.

Author

@retep998 If I understand you correctly, I should create a value containing a comma seperated array with the path to the folder where my deepspeech.lib file is, and assign it to a new variable called LIB, is that it?
I have no LIB variable at the moment.