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| -rw-r--r-- | doc/tutorial.md | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/doc/tutorial.md b/doc/tutorial.md index 66f3070de6c..6990d4574e9 100644 --- a/doc/tutorial.md +++ b/doc/tutorial.md @@ -1686,6 +1686,7 @@ purpose, you create a `.rc` crate file, which references any number of ~~~~ {.ignore} #[link(name = "farm", vers = "2.5", author = "mjh")]; +#[crate_type = "lib"]; mod cow; mod chicken; mod horse; @@ -1694,7 +1695,9 @@ mod horse; Compiling this file will cause `rustc` to look for files named `cow.rs`, `chicken.rs`, `horse.rs` in the same directory as the `.rc` file, compile them all together, and, depending on the presence of the -`--lib` switch, output a shared library or an executable. +`crate_type = "lib"` attribute, output a shared library or an executable. +(If the line `#[crate_type = "lib"];` was omitted, `rustc` would create an +executable.) The `#[link(...)]` part provides meta information about the module, which other crates can use to load the right module. More about that @@ -1717,9 +1720,9 @@ content to the `poultry` module itself. ## Using other crates -Having compiled a crate with `--lib`, you can use it in another crate -with a `use` directive. We've already seen `use std` in several of the -examples, which loads in the [standard library][std]. +Having compiled a crate that contains the `#[crate_type = "lib"]` attribute, +you can use it in another crate with a `use` directive. We've already seen +`use std` in several of the examples, which loads in the [standard library][std]. [std]: http://doc.rust-lang.org/doc/std/index/General.html |