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Diffstat (limited to 'src/doc/rustc-dev-guide/src/building/prerequisites.md')
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1 files changed, 3 insertions, 51 deletions
diff --git a/src/doc/rustc-dev-guide/src/building/prerequisites.md b/src/doc/rustc-dev-guide/src/building/prerequisites.md index 100b14aca..8fee0a4b5 100644 --- a/src/doc/rustc-dev-guide/src/building/prerequisites.md +++ b/src/doc/rustc-dev-guide/src/building/prerequisites.md @@ -2,48 +2,7 @@ ## Dependencies -Before building the compiler, you need the following things installed: - -* `python` 3 or 2.7 (under the name `python`; `python2` or `python3` will not work) -* `curl` -* `git` -* `ssl` which comes in `libssl-dev` or `openssl-devel` -* `pkg-config` if you are compiling on Linux and targeting Linux -* `libstdc++-static` may be required on some Linux distributions such as Fedora and Ubuntu - -If building LLVM from source (the default), you'll need additional tools: - -* `g++`, `clang++`, or MSVC with versions listed on <!-- date-check: Aug 2022 --> - [LLVM's documentation](https://releases.llvm.org/13.0.0/docs/GettingStarted.html#host-c-toolchain-both-compiler-and-standard-library) -* `ninja`, or GNU `make` 3.81 or later (ninja is recommended, especially on Windows) -* `cmake` 3.13.4 or later - -Otherwise, you'll need LLVM installed and `llvm-config` in your path. -See [this section for more info][sysllvm]. - -[sysllvm]: ./new-target.md#using-pre-built-llvm - -### Windows - -* Install [winget](https://github.com/microsoft/winget-cli) - -`winget` is a Windows package manager. It will make package installation easy -on Windows. - -Run the following in a terminal: - -```powershell -winget install -e Python.Python.3 -winget install -e Kitware.CMake -``` - -If any of those is installed already, winget will detect it. Then edit your system's `PATH` variable -and add: `C:\Program Files\CMake\bin`. See -[this guide on editing the system `PATH`](https://www.java.com/en/download/help/path.html) from the -Java documentation. - -For more information about building on Windows, -see [the `rust-lang/rust` README](https://github.com/rust-lang/rust#building-on-windows). +See [the `rust-lang/rust` README](https://github.com/rust-lang/rust#dependencies). ## Hardware @@ -65,8 +24,8 @@ powerful, a common strategy is to only use `./x.py check` on your local machine and let the CI build test your changes when you push to a PR branch. Building the compiler takes more than half an hour on my moderately powerful -laptop. The first time you build the compiler, LLVM will also be built unless -you use CI-built LLVM ([see here][config]). +laptop. We suggest downloading LLVM from CI so you don't have to build it from source +([see here][config]). Like `cargo`, the build system will use as many cores as possible. Sometimes this can cause you to run low on memory. You can use `-j` to adjust the number @@ -80,10 +39,3 @@ longer (especially after a rebase), but will save a ton of space from the incremental caches. [config]: ./how-to-build-and-run.md#create-a-configtoml - -## `rustc` and toolchain installation - -Follow the installation given in the [Rust book][install] to install a working -`rustc` and the necessary C/++ toolchain on your platform. - -[install]: https://doc.rust-lang.org/book/ch01-01-installation.html |