rust/README.md
bors 36d0346dff auto merge of #17876 : ruud-v-a/rust/patch-1, r=alexcrichton
The Windows-specific instruction under 'Quick Start' linked the wiki article on getting started developing Rust itself, but the quick start is just about obtaining a working Rust installation. The actual wiki page with Windows-specific instructions was difficult to find.

The most important thing to note on Windows is that you need mingw-builds, and it is totally not obvious. The only place where I have seen it mentioned is the wiki page, which was difficult to find before.
2014-10-13 21:32:43 +00:00

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# The Rust Programming Language
This is a compiler for Rust, including standard libraries, tools and
documentation.
## Quick Start
1. Download a [binary installer][installer] for your platform.
2. Read the [guide].
3. Enjoy!
> ***Note:*** Windows users can read the detailed
> [using Rust on Windows][win-wiki] notes on the wiki.
[installer]: http://www.rust-lang.org/install.html
[guide]: http://doc.rust-lang.org/guide.html
[win-wiki]: https://github.com/rust-lang/rust/wiki/Using-Rust-on-Windows
## Building from Source
1. Make sure you have installed the dependencies:
* `g++` 4.7 or `clang++` 3.x
* `python` 2.6 or later (but not 3.x)
* `perl` 5.0 or later
* GNU `make` 3.81 or later
* `curl`
* `git`
2. Download and build Rust:
You can either download a [tarball] or build directly from the [repo].
To build from the [tarball] do:
$ curl -O https://static.rust-lang.org/dist/rust-nightly.tar.gz
$ tar -xzf rust-nightly.tar.gz
$ cd rust-nightly
Or to build from the [repo] do:
$ git clone https://github.com/rust-lang/rust.git
$ cd rust
Now that you have Rust's source code, you can configure and build it:
$ ./configure
$ make && make install
> ***Note:*** You may need to use `sudo make install` if you do not normally have
> permission to modify the destination directory. The install locations can
> be adjusted by passing a `--prefix` argument to `configure`. Various other
> options are also supported, pass `--help` for more information on them.
When complete, `make install` will place several programs into
`/usr/local/bin`: `rustc`, the Rust compiler, and `rustdoc`, the
API-documentation tool.
3. Read the [guide].
4. Enjoy!
### Building on Windows
To easily build on windows we can use [MSYS2](http://sourceforge.net/projects/msys2/):
1. Grab the latest MSYS2 installer and go through the installer.
2. Now from the MSYS2 terminal we want to install the mingw64 toolchain and the other
tools we need.
$ pacman -S mingw-w64-i686-toolchain
$ pacman -S base-devel
3. With that now start `mingw32_shell.bat` from where you installed MSYS2 (i.e. `C:\msys`).
4. From there just navigate to where you have Rust's source code, configure and build it:
$ ./configure
$ make && make install
[repo]: https://github.com/rust-lang/rust
[tarball]: https://static.rust-lang.org/dist/rust-nightly.tar.gz
[guide]: http://doc.rust-lang.org/guide.html
## Notes
Since the Rust compiler is written in Rust, it must be built by a
precompiled "snapshot" version of itself (made in an earlier state of
development). As such, source builds require a connection to the Internet, to
fetch snapshots, and an OS that can execute the available snapshot binaries.
Snapshot binaries are currently built and tested on several platforms:
* Windows (7, 8, Server 2008 R2), x86 and x86-64 (64-bit support added in Rust 0.12.0)
* Linux (2.6.18 or later, various distributions), x86 and x86-64
* OSX 10.7 (Lion) or greater, x86 and x86-64
You may find that other platforms work, but these are our officially
supported build environments that are most likely to work.
Rust currently needs about 1.5 GiB of RAM to build without swapping; if it hits
swap, it will take a very long time to build.
There is a lot more documentation in the [wiki].
[wiki]: https://github.com/rust-lang/rust/wiki
## Getting help and getting involved
The Rust community congregates in a few places:
* [StackOverflow] - Get help here.
* [/r/rust] - General discussion.
* [discuss.rust-lang.org] - For development of the Rust language itself.
[StackOverflow]: http://stackoverflow.com/questions/tagged/rust
[/r/rust]: http://reddit.com/r/rust
[discuss.rust-lang.org]: http://discuss.rust-lang.org/
## License
Rust is primarily distributed under the terms of both the MIT license
and the Apache License (Version 2.0), with portions covered by various
BSD-like licenses.
See LICENSE-APACHE, LICENSE-MIT, and COPYRIGHT for details.