Cgo的Cargo.toml OS依赖关系

时间:2016-10-27 09:05:15

标签: operating-system rust dependency-management rust-cargo rust-crates

我有一个生锈项目,其中包含mysql - crate依赖项,我想让它独立。

所以我试过了: Cargo.toml

[package]
name = "test"
version = "0.1.0"
authors = ["daMaex"]

[dependencies]
ws = "*"
clap = "*"
env_logger = "*"

[target.'cfg(any(unix, macos))'.dependencies.mysql]
version = "*"
default-features = false
features = ["socket"]

[target.'cfg(windows)'.dependencies.mysql]
version = "*"
default-features = false
features = ["pipe"]

[features]
default = []
ssl = []

错误已经发生在最小的main: src / main.rs

fn main () {
}

但是构建失败了。在macos / unix上,它总是想编译管道并获得一个未解析的导入:

error[E0432]: unresolved import `std::os::windows::io::RawHandle`
  --> /home/user/.cargo/registry/src/github.com-1ecc6299db9ec823/named_pipe-0.2.2/src/lib.rs:38:5
   |
   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Could not find `windows` in `std::os`

在Windows上对于mysql crate本身也是如此:

error[E0432]: unresolved import `std::os::unix`
  --> C:\Users\user\.cargo\registry\src\github.com-1ecc6299db9ec823\mysql-7.1.2\src\io.rs:24:5
   |
24 | use std::os::unix as unix;
   |     ^^^^^^^^^^^^^^^^^^^^^ no `unix` in `std::os`

所以我的问题是,在这种情况下我如何处理OS-Dependency?

1 个答案:

答案 0 :(得分:2)

这看起来像cargo错误。 一个相关问题是Cannot declare different version of dependencies in mutually exclusive targets #3195

编辑:这是一个不受支持的功能,而不是根据code的错误。