Rustup vs货物二进制文件
[英]Rustup vs Cargo binaries
问题描述
I just installed Rustup on macOS and noticed that there are two rustc and two cargo binaries: 
我刚刚在macOS上安装了Rustup，并注意到有两个rustc和两个cargo Binaries：
-
~/.cargo/bin/rustc (cargo) -
~/.rustup/toolchains/stable-x86_64-apple-darwin/bin/rustc (cargo)
Their versions are exactly the same, but diff shows there exists some difference. 它们的版本完全相同，但是diff显示存在一些差异。 So why are there two different rustc ( cargo ) binaries and which one should I use? 那么，为什么会有两种不同的rustc （ cargo ）二进制文件，我应该使用哪一种呢？
1 个解决方案
解决方案1
3 已采纳 2017-01-31 01:12:00
The reason there are two files named rustc is because rustup is a toolchain multiplexer. 之所以有两个名为rustc文件，是因为rustup是一个工具链多路复用器。 It lets you install many versions of Rust and easily switch between them. 它使您可以安装多个版本的Rust并在它们之间轻松切换。
The binary installed at ~/.cargo/bin/rustc proxies to the current toolchain that you have selected. 安装在~/.cargo/bin/rustc的二进制文件代理到您选择的当前工具链。 Each installed compiler is kept under the toolchains directory. 每个已安装的编译器都保存在toolchains目录下。
Although the compiler in the toolchains directory appears to be a smaller file, that's only because it's dynamically linked instead of statically linked. 尽管toolchains目录中的编译器似乎是一个较小的文件，但这仅是因为它是动态链接的，而不是静态链接的。
More information can be found on rustup's README . 可以在rustup的README上找到更多信息。
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