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Update WASI-tutorial.md

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Update README based on feedback
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Van der Auwermeulen Grégoire
2019-06-03 21:51:23 +02:00
committed by Dan Gohman
parent 15b85dc285
commit 3425553dc6
1 changed files with 8 additions and 2 deletions
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docs/WASI-tutorial.md
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@@ -73,14 +73,20 @@ int main(int argc, char **argv) {
We'll put this source in a file called `demo.c`.
The [wasi-sdk](https://github.com/CraneStation/wasi-sdk/releases) provides a clang
which is configured to target WASI and use the WASI sysroot by default, so we can
which is configured to target WASI and use the WASI sysroot by default if you put the extracted tree into `/`, so we can
compile our program like so:
```
$ clang demo.c -o demo.wasm
```
If you would want to extract it elsewhere, you can specify the directory like so
```
$ clang demo.c --sysroot <path to sysroot> -o demo.wasm
```
The sysroot is folder is located in `opt/wasi-sdk/share/sysroot/`.
If you're using the wasi-sdk, the sysroot folder is located in `opt/wasi-sdk/share/sysroot/` on Linux and mac.
A few things to note here. First, this is just regular clang, configured to use
a WebAssembly target and sysroot. Second, the output name specified with the "-o"