在 M1 上如何编译为 Linux 的包

你 cargo 带上--target 就行了 https://rust-lang.github.io/rustup/cross-compilation.html ，这是 rust 目前支持的 CPU 架构 https://doc.rust-lang.org/nightly/rustc/platform-support.html

@liuxu
我的 target 为 x86_64-unknown-linux-gnu
给我报这个错误
https://imgur.com/a/yVuU169

[img][/img]

@horizon 加-v 看看详细编译信息，https://doc.rust-lang.org/cargo/commands/cargo-doc.html

@liuxu 感谢解答。
错误如下：
```
Caused by:
process didn't exit successfully: `/Users/linctex/Workspace/dufs/target/debug/build/ring-e3146748fc8e5aed/build-script-build` (exit status: 101)
--- stdout
OPT_LEVEL = Some("0")
TARGET = Some("x86_64-unknown-linux-gnu")
HOST = Some("aarch64-apple-darwin")
cargo:rerun-if-env-changed=CC_x86_64-unknown-linux-gnu
CC_x86_64-unknown-linux-gnu = None
cargo:rerun-if-env-changed=CC_x86_64_unknown_linux_gnu
CC_x86_64_unknown_linux_gnu = None
cargo:rerun-if-env-changed=TARGET_CC
TARGET_CC = None
cargo:rerun-if-env-changed=CC
CC = None
RUSTC_LINKER = None
cargo:rerun-if-env-changed=CROSS_COMPILE
CROSS_COMPILE = None
cargo:rerun-if-env-changed=CFLAGS_x86_64-unknown-linux-gnu
CFLAGS_x86_64-unknown-linux-gnu = None
cargo:rerun-if-env-changed=CFLAGS_x86_64_unknown_linux_gnu
CFLAGS_x86_64_unknown_linux_gnu = None
cargo:rerun-if-env-changed=TARGET_CFLAGS
TARGET_CFLAGS = None
cargo:rerun-if-env-changed=CFLAGS
CFLAGS = None
cargo:rerun-if-env-changed=CRATE_CC_NO_DEFAULTS
CRATE_CC_NO_DEFAULTS = None
DEBUG = Some("true")
CARGO_CFG_TARGET_FEATURE = Some("fxsr,sse,sse2")

--- stderr
running "x86_64-linux-gnu-gcc" "-O0" "-ffunction-sections" "-fdata-sections" "-fPIC" "-gdwarf-4" "-fno-omit-frame-pointer" "-m64" "-I" "include" "-Wall" "-Wextra" "-pedantic" "-pedantic-errors" "-Wall" "-Wextra" "-Wcast-align" "-Wcast-qual" "-Wconversion" "-Wenum-compare" "-Wfloat-equal" "-Wformat=2" "-Winline" "-Winvalid-pch" "-Wmissing-field-initializers" "-Wmissing-include-dirs" "-Wredundant-decls" "-Wshadow" "-Wsign-compare" "-Wsign-conversion" "-Wundef" "-Wuninitialized" "-Wwrite-strings" "-fno-strict-aliasing" "-fvisibility=hidden" "-fstack-protector" "-g3" "-DNDEBUG" "-c" "-o/Users/linctex/Workspace/dufs/target/x86_64-unknown-linux-gnu/debug/build/ring-574835f3f1e4e3d0/out/aesni-x86_64-elf.o" "/Users/linctex/.cargo/registry/src/github.com-1ecc6299db9ec823/ring-0.16.20/pregenerated/aesni-x86_64-elf.S"
thread 'main' panicked at 'failed to execute ["x86_64-linux-gnu-gcc" "-O0" "-ffunction-sections" "-fdata-sections" "-fPIC" "-gdwarf-4" "-fno-omit-frame-pointer" "-m64" "-I" "include" "-Wall" "-Wextra" "-pedantic" "-pedantic-errors" "-Wall" "-Wextra" "-Wcast-align" "-Wcast-qual" "-Wconversion" "-Wenum-compare" "-Wfloat-equal" "-Wformat=2" "-Winline" "-Winvalid-pch" "-Wmissing-field-initializers" "-Wmissing-include-dirs" "-Wredundant-decls" "-Wshadow" "-Wsign-compare" "-Wsign-conversion" "-Wundef" "-Wuninitialized" "-Wwrite-strings" "-fno-strict-aliasing" "-fvisibility=hidden" "-fstack-protector" "-g3" "-DNDEBUG" "-c" "-o/Users/linctex/Workspace/dufs/target/x86_64-unknown-linux-gnu/debug/build/ring-574835f3f1e4e3d0/out/aesni-x86_64-elf.o" "/Users/linctex/.cargo/registry/src/github.com-1ecc6299db9ec823/ring-0.16.20/pregenerated/aesni-x86_64-elf.S"]: No such file or directory (os error 2)', /Users/linctex/.cargo/registry/src/github.com-1ecc6299db9ec823/ring-0.16.20/build.rs:653:9
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
warning: build failed, waiting for other jobs to finish...
```

看上去是没有 x86_64_unknown_linux_gnu 编译工具链，rustup target list 看看你安装了没，没有就 rustup target add x86_64-unknown-linux-gnu 安装下

@liuxu [img][/img]
安装了的

@horizon 我也是 M1 ，这个应该就是 CC_x86_64_unknown_linux_gnu 编译器和连接器不对的原因，依赖有问题的项目是 https://github.com/briansmith/ring
用 CC_x86_64_unknown_linux_gnu=clang cargo build...是可以过掉这个 aesni-x86_64-elf.S 文件编译的
还编译不过我感觉需要给 homebrew-macos-cross-toolchains 或者 briansmith/ring 发 issue

@liuxu 非常感谢

交叉编译 ring 这种非 pure Rust 项目需要对应的 cc 工具链，报错这么明显告诉你 x86_64-linux-gnu-gcc: No such file

@whoami9894 谢谢

@whoami9894 感谢，安装了 llvm 好了

再补充一下，可以在 cargo.toml 内设置 target 和 linker
[img][/img]

这是编译成了 musl ，不是 gnu target

@proxytoworld
是的，我问题问错了，我是要 musl 的
哈哈，纯小白。