Unable to build Rust dependency with C dependency #621
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i think this is the right place! i'll need to try to reproduce this- what C dependency were you using? or if you can just push up an example repo, that'd be helpful. thanks for filing! |
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@ashleygwilliams glad to hear! The example repo for this simplified example is here: https://github.com/tmfink/simple-wasm/tree/master The README gives an overview of where/what the dependencies are. |
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I commented on rust-lang/cc-rs#392 as well, but I think the issue here is that |
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@alexcrichton thanks for the info! I'm not as familiar with this web programming. |
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After clearing the I'm running Ubuntu 18.04, which comes with clang 6.0.0. However, after installing However, I don't know how to test my change since, when I run |
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I replaced "hello-wasm-pack" with "simple-wasm" as described in the "Using your library" tutorial page: However, when building with: #!/bin/sh
set -eux
cd "$(dirname "$0")"
CC=clang-8 wasm-pack build --dev -- -v
( cd pkg && npm link )
(
cd www
npm link simple-wasm
npm install
npm run start
)I get an error during Full log: @ashleygwilliams Am I not running |
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i'm not sure but it does seem to be a npm/web-pack sitch. i'll need to carve out some time to look at this more closely. i'm not sure what this error causing "env" bit means! |
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I am also trying to compile the Capstone engine to WebAssembly and getting the same results. Using @ashleygwilliams Could there be a way to direct wasm-pack to compile functions found in the C standard library to wasm when the rest of the package is built? That way there won't be an imports to be missing, and a more static library will be produced. |
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This basic example seems to work now, perhaps from a Rust or clang update? @ct-porco any success on your end? My proof-of-concept C code here is simple, just:
unsigned int double_it(unsigned int x) {
return x * 2;
} |
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I'm not sure if
wasm-packis the correct project to open an issue. My goal is to create a web-interface for https://github.com/capstone-rust/capstone-rs (Rust bindings around a C library) that runs completely client-side in webassembly. However, I had issues with a proof-of-concept that tried to link transitively to a C library.🐛 Bug description
wasm-packfails to build Rust code that has C dependency for targetwasm32-unknown-unknown.Project available here: https://github.com/tmfink/simple-wasm/tree/master
🤔 Expected Behavior
wasm-pack buildshould succeed.emcc*-syslibrary built library with wasm binary.-rscode links*-syslibrary.👟 Steps to reproduce
wasm-pack build.~/.cargo/config:Do no set
CC:Set
CC=emcc🌍 Your environment
Include the relevant details of your environment.
wasm-pack version:
wasm-pack 0.8.1rustc version:
1.33.0 (2aa4c46cf 2019-02-28)emcc version:
1.38.12 (commit 0d8576c0e8f5ee09a36120b9d44184b5da2f2e7a)The text was updated successfully, but these errors were encountered: