Clang Windows issue #19
Comments
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Hi @adminSxs, I'll try building on Windows 10 tonight. Have you already installed Microsoft's vcpkg https://github.com/houqp/leptess/blob/master/README.md#windows |
yes |
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Ok, I'll try in Windows 10 tonight and see what needs to be done |
Ok,thanks. |
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Sorry if I'm not very useful at this issue. I don't use Windows much. There seem to be 2 errors. It can't find llvm-config and it can't find clang. These are usually installed together. Can I get you to try installing LLVM? If this works, I'll update the Readme to include this step. |
I have installed llvm ,but still same error |
I use centos:7 to build |
How are you using Windows 10 and CentOS 7 at the same time to build leptess? |
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On windows, LLVM doesn't provide llvm-config. You must set LIBCLANG_PATH environment variable to \bin folder "tasks": [
{
"type": "cargo",
"command": "build",
"problemMatcher": [
"$rustc"
],
"group": {
"kind": "build",
"isDefault": true
},
"options": {
"env": {
"LIBCLANG_PATH": "e:\\llvm\\bin",
"VCPKGRS_DYNAMIC": "1",
"VCPKG_ROOT": "e:\\vcpkg"
}
},
"label": "rust: cargo build"
}
]
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@ccouzens Hello, I don't mind if you forward windows build related issues to me in the future. I'm not monitoring this repo constantly so just mention my name in the message so I'll get a notification |
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Hi @rucoder - thank you- I'll do that in future 😄 |
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@rucoder are you by any chance able to shed some light on this one? Caused by: --- stderr error: build failed I did try adding these env variables manually after getting this error the first time, but despite doing that (and restarting of course) I'm still unable to get a windows build going. TY in advance. |
I may have resolved this -- or hit an error in the process of 'fixing' it -- will move that error to the leptonica-sys repo as that's the source.. |
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@ccouzens I have solved the clang problem by installing llvm via the winget tool. it will then find the dll automatically. However, I am now a step further but I get linking errors. Both dynamically and statically. Do you have any idea how to fix this? I am on windows 11. For example, I used: # To install the LLVM (clang)
winget install LLVM
# the vcpkg dependencies
.\vcpkg.exe install tesseract:x64-windows-static
.\vcpkg.exe install leptonica:x64-windows-static
# the linker initially fails, so updated this to be windows msvc
rustup default stable-x86_64-pc-windows-msvccargo config The only dependency I have is leptess This is the error I get when building: |
There's a weird workaround in windows. Add openssl as your dependencies and on top of your main.rs add so this is my program. It compiles on windows: main.rs const IMAGE_PATH:&str = "test1.png";
mod ocr_wrapper;
use ocr_wrapper::ocr;
fn main() {
let text = ocr(IMAGE_PATH).unwrap();
println!("{}",text);
}ocr_wrapper.rs use leptess::LepTess;
pub use openssl; //this is necessary
pub fn ocr(image:&str)->Result<String, std::str::Utf8Error>{
let mut ocr = LepTess::new(None, "eng").expect("Load OCR Fail");
ocr.set_image(image).expect("Error Reading Image");
ocr.get_utf8_text()
}Cargo.toml [dependencies]
leptess = "0.14.0"
openssl = "0.10.57" |
i'm a novice on compile, maybe this crate can add openssl when use static link. i see the error is about openssl. |
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i'm win10 os
Cargo.toml
occur problem
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