5294f2080b
Running `/usr/bin/time -v make` to build rust (using local llvm) shows the maximum memory usage at 715 megabytes on 32-bit x86 (on arm linux it's even less @ 580M). Reworded according to @brson's input.
176 lines
5.5 KiB
Markdown
176 lines
5.5 KiB
Markdown
# The Rust Programming Language
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This is the main source code repository for [Rust]. It contains the compiler, standard library,
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and documentation.
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[Rust]: https://www.rust-lang.org
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## Quick Start
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Read ["Installing Rust"] from [The Book].
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["Installing Rust"]: https://doc.rust-lang.org/book/installing-rust.html
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[The Book]: https://doc.rust-lang.org/book/index.html
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## Building from Source
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1. Make sure you have installed the dependencies:
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* `g++` 4.7 or `clang++` 3.x
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* `python` 2.6 or later (but not 3.x)
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* GNU `make` 3.81 or later
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* `curl`
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* `git`
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2. Clone the [source] with `git`:
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```sh
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$ git clone https://github.com/rust-lang/rust.git
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$ cd rust
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```
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[source]: https://github.com/rust-lang/rust
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3. Build and install:
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```sh
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$ ./configure
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$ make && make install
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```
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> ***Note:*** You may need to use `sudo make install` if you do not
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> normally have permission to modify the destination directory. The
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> install locations can be adjusted by passing a `--prefix` argument
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> to `configure`. Various other options are also supported – pass
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> `--help` for more information on them.
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When complete, `make install` will place several programs into
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`/usr/local/bin`: `rustc`, the Rust compiler, and `rustdoc`, the
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API-documentation tool. This install does not include [Cargo],
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Rust's package manager, which you may also want to build.
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[Cargo]: https://github.com/rust-lang/cargo
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### Building on Windows
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[MSYS2](http://msys2.github.io/) can be used to easily build Rust on Windows:
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1. Grab the latest MSYS2 installer and go through the installer.
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2. From the MSYS2 terminal, install the `mingw64` toolchain and other required
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tools.
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```sh
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# Update package mirrors (may be needed if you have a fresh install of MSYS2)
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$ pacman -Sy pacman-mirrors
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# Choose one based on platform:
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# *** see the note below ***
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$ pacman -S mingw-w64-i686-toolchain
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$ pacman -S mingw-w64-x86_64-toolchain
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# Make git available in MSYS2 (if not already available on path)
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$ pacman -S git
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$ pacman -S base-devel
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```
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3. Run `mingw32_shell.bat` or `mingw64_shell.bat` from wherever you installed
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MSYS2 (i.e. `C:\msys`), depending on whether you want 32-bit or 64-bit Rust.
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4. Navigate to Rust's source code, configure and build it:
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```sh
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$ ./configure
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$ make && make install
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```
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> ***Note:*** gcc versions >= 5 currently have issues building LLVM on Windows
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> resulting in a segmentation fault when building Rust. In order to avoid this
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> it may be necessary to obtain an earlier version of gcc such as 4.9.x.
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> Msys's `pacman` will install the latest version, so for the time being it is
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> recommended to skip gcc toolchain installation step above and use [Mingw-Builds]
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> project's installer instead. Be sure to add gcc `bin` directory to the path
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> before running `configure`.
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> For more information on this see issue #28260.
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[Mingw-Builds]: http://sourceforge.net/projects/mingw-w64/
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## Building Documentation
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If you’d like to build the documentation, it’s almost the same:
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```sh
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./configure
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$ make docs
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```
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Building the documentation requires building the compiler, so the above
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details will apply. Once you have the compiler built, you can
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```sh
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$ make docs NO_REBUILD=1
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```
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To make sure you don’t re-build the compiler because you made a change
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to some documentation.
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The generated documentation will appear in a top-level `doc` directory,
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created by the `make` rule.
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## Notes
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Since the Rust compiler is written in Rust, it must be built by a
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precompiled "snapshot" version of itself (made in an earlier state of
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development). As such, source builds require a connection to the Internet, to
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fetch snapshots, and an OS that can execute the available snapshot binaries.
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Snapshot binaries are currently built and tested on several platforms:
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| Platform \ Architecture | x86 | x86_64 |
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|--------------------------------|-----|--------|
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| Windows (7, 8, Server 2008 R2) | ✓ | ✓ |
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| Linux (2.6.18 or later) | ✓ | ✓ |
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| OSX (10.7 Lion or later) | ✓ | ✓ |
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You may find that other platforms work, but these are our officially
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supported build environments that are most likely to work.
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Rust currently needs between 600MiB and 1.5GiB to build, depending on platform. If it hits
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swap, it will take a very long time to build.
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There is more advice about hacking on Rust in [CONTRIBUTING.md].
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[CONTRIBUTING.md]: https://github.com/rust-lang/rust/blob/master/CONTRIBUTING.md
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## Getting Help
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The Rust community congregates in a few places:
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* [Stack Overflow] - Direct questions about using the language.
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* [users.rust-lang.org] - General discussion and broader questions.
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* [/r/rust] - News and general discussion.
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[Stack Overflow]: http://stackoverflow.com/questions/tagged/rust
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[/r/rust]: http://reddit.com/r/rust
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[users.rust-lang.org]: https://users.rust-lang.org/
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## Contributing
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To contribute to Rust, please see [CONTRIBUTING](CONTRIBUTING.md).
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Rust has an [IRC] culture and most real-time collaboration happens in a
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variety of channels on Mozilla's IRC network, irc.mozilla.org. The
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most popular channel is [#rust], a venue for general discussion about
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Rust, and a good place to ask for help.
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[IRC]: https://en.wikipedia.org/wiki/Internet_Relay_Chat
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[#rust]: irc://irc.mozilla.org/rust
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## License
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Rust is primarily distributed under the terms of both the MIT license
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and the Apache License (Version 2.0), with portions covered by various
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BSD-like licenses.
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See [LICENSE-APACHE](LICENSE-APACHE), [LICENSE-MIT](LICENSE-MIT), and [COPYRIGHT](COPYRIGHT) for details.
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