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Fix command to run custom rustc

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This commit is contained in:
Guillaume Gomez 2023-08-15 22:28:52 +02:00
parent 2f11b37c80
commit 4cbf1c76ff
1 changed files with 7 additions and 3 deletions
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10
Readme.md
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@ -77,12 +77,16 @@ $ ./test.sh --release
## Usage
`$cg_gccjit_dir` is the directory you cloned this repo into in the following instructions.
`$CG_GCCJIT_DIR` is the directory you cloned this repo into in the following instructions:
```bash
export CG_GCCJIT_DIR=[the full path to rustc_codegen_gcc]
```
### Cargo
```bash
$ CHANNEL="release" $cg_gccjit_dir/cargo.sh run
$ CHANNEL="release" $CG_GCCJIT_DIR/cargo.sh run
```
If you compiled cg_gccjit in debug mode (aka you didn't pass `--release` to `./test.sh`) you should use `CHANNEL="debug"` instead or omit `CHANNEL="release"` completely.
@ -92,7 +96,7 @@ If you compiled cg_gccjit in debug mode (aka you didn't pass `--release` to `./t
> You should prefer using the Cargo method.
```bash
$ rustc +$(cat $cg_gccjit_dir/rust-toolchain) -Cpanic=abort -Zcodegen-backend=$cg_gccjit_dir/target/release/librustc_codegen_gcc.so --sysroot $cg_gccjit_dir/build_sysroot/sysroot my_crate.rs
$ LIBRARY_PATH=$(cat gcc_path) LD_LIBRARY_PATH=$(cat gcc_path) rustc +$(cat $CG_GCCJIT_DIR/rust-toolchain | grep 'channel' | cut -d '=' -f 2 | sed 's/"//g' | sed 's/ //g') -Cpanic=abort -Zcodegen-backend=$CG_GCCJIT_DIR/target/release/librustc_codegen_gcc.so --sysroot $CG_GCCJIT_DIR/build_sysroot/sysroot my_crate.rs
```
## Env vars