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add documentation on use of vcpkg and cargo-vcpkg
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mcgoo committed Jun 13, 2020
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49 changes: 43 additions & 6 deletions README.md
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Expand Up @@ -62,9 +62,10 @@ You might also need a C compiler (`gcc`).
#### Static linking in Linux

You can choose to link SDL2 statically instead of dynamically with the `static-link` feature.
However on Linux, unless you use the "bundled" feature, your operating system has no built-in way to find the resources needed to link statically SDL2 from your system.

You need to add the feature `use-pkgconfig`, so that rustc knows where to look for your SDL2 libraries and its dependencies for static linking.
On Linux, you will need to additionally do one of the following:
* use the `bundled` feature
* use the feature `use-pkgconfig` so that rustc knows where to look for your SDL2 libraries and its dependencies for static linking. This is required because there is no built-in way to find the resources needed to link statically SDL2 from your system
* install development libraries with [vcpkg][vcpkg]. Instructions to generate a static binary on Linux and other operating systems using vcpkg are [here][cargo-vcpkg-usage]

### Mac OS X
#### If you are using homebrew
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use_sdl2_mac_framework = ["sdl2/use_mac_framework"]
```

#### Static linking on macOS using vcpkg

Instructions to generate a static binary on macOS and other operating systems using [vcpkg][vcpkg] are [here][cargo-vcpkg-usage].

### Windows with build script

1. Download mingw and msvc development libraries from
Expand Down Expand Up @@ -248,7 +253,7 @@ These files are not currently included with the windows-gnu toolchain, but can b
You will find the aforementioned libraries under `mingw64/x86_64-w64-mingw32/lib/` (for x86_64) or `mingw32/i686-w64-mingw32/lib/` (for i686). Copy them to your toolchain's `lib` directory (the same one you copied the SDL .a files to).

### Windows (MSVC with vcpkg)
1. Install [MS build tools](https://visualstudio.microsoft.com/downloads/) and [vcpkg](https://github.com/microsoft/vcpkg)
1. Install [MS build tools](https://visualstudio.microsoft.com/downloads/) and [vcpkg][vcpkg]
2. Install the needed SDL2 libs: `vcpkg.exe install sdl2-ttf:x64-windows sdl2:x64-windows`
3. Open a x64 native tools prompt (x64 Native Tools Command Prompt for VS 2019)
4. set env vars:
Expand Down Expand Up @@ -289,10 +294,39 @@ SET LIB=%LIB%;C:\Users\my_user\dev\vcpkg\installed\x64-windows\lib

#### Static linking with MSVC

The MSVC development libraries provided by http://libsdl.org/ don't include a static library. This means that if you want to use the `static-link` feature with the windows-msvc toolchain, you have to either
The MSVC development libraries provided by http://libsdl.org/ don't include a static library. This means that if you want to use the `static-link` feature with the windows-msvc toolchain, you have to do one of

- build an SDL2 static library yourself and copy it to your toolchain's `lib` directory; or
- also enable the `bundled` feature, which will build a static library for you.
- also enable the `bundled` feature, which will build a static library for you; or
- use a static SDL2 library from vcpkg as described below.

### Windows, Linux and macOS with vcpkg

Another method of getting the development libraries is with [vcpkg][vcpkg]. To set up a project to build a static binary on Windows (MSVC), Linux or macOS that is buildable like this:
```sh
cargo install cargo-vcpkg
cargo vcpkg build
cargo build
```

add the following your `Cargo.toml`:

```toml
[dependencies.sdl2]
version = "0.34"
default-features = false
features = ["ttf","image","gfx","mixer","static-link","use-vcpkg"]

[package.metadata.vcpkg]
dependencies = ["sdl2", "sdl2-image[libjpeg-turbo,tiff,libwebp]", "sdl2-ttf", "sdl2-gfx", "sdl2-mixer"]
git = "https://github.com/microsoft/vcpkg"
rev = "a0518036077baa4"

[package.metadata.vcpkg.target]
x86_64-pc-windows-msvc = { triplet = "x64-windows-static-md" }
```

More information on the `cargo vcpkg` tool is [here][cargo-vcpkg].

# Installation

Expand Down Expand Up @@ -629,3 +663,6 @@ Any Pull Request is welcome, however small your contribution may be ! There are,
[dep-sdl2-include-issue]: https://github.com/Rust-SDL2/rust-sdl2/pull/968
[gl-rs]: https://github.com/bjz/gl-rs
[pdev-issue]: https://github.com/PistonDevelopers/rust-empty/issues/175
[vcpkg]: https://github.com/microsoft/vcpkg
[cargo-vcpkg]: https://crates.io/crates/cargo-vcpkg
[cargo-vcpkg-usage]: #Windows,-Linux-and-macOS-with-vcpkg
5 changes: 5 additions & 0 deletions changelog.md
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In this file will be listed the changes, especially the breaking ones that one should be careful of
when upgrading from a version of rust-sdl2 to another.

### Unreleased

[PR #1009](https://github.com/Rust-SDL2/rust-sdl2/pull/1009)
Add support for linking to development libraries from vcpkg, and automatically setting up a vcpkg installation using `cargo-vcpkg`.

### v0.34.1

[PR #1004](https://github.com/Rust-SDL2/rust-sdl2/pull/1004) + [PR #1005](https://github.com/Rust-SDL2/rust-sdl2/pull/1005):
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