1# WebRTC development - Prerequisite software 2 3## Depot Tools 4 51. [Install the Chromium depot tools][depot-tools]. 6 72. On Windows, depot tools will download a special version of Git during your 8first `gclient sync`. On Mac and Linux, you'll need to install [Git][git] by 9yourself. 10 11## Linux (Ubuntu/Debian) 12 13A script is provided for Ubuntu, which is unfortunately only available after 14your first gclient sync: 15 16``` 17$ ./build/install-build-deps.sh 18``` 19 20Most of the libraries installed with this script are not needed since we now 21build using Debian sysroot images in build/linux, but there are still some tools 22needed for the build that are installed with 23[install-build-deps.sh][install-build-deps]. 24 25You may also want to have a look at the [Chromium Linux Build 26instructions][chromium-linux-build-instructions] if you experience any other problems building. 27 28## Windows 29 30Follow the [Chromium's build instructions for Windows][chromium-win-build-instructions]. 31 32WebRTC requires Visual Studio 2017 to be used. If you only have version 2015 33available, you might be able to keep using it for some time by setting 34`GYP_MSVS_VERSION=2015` in your environment. Keep in mind that this is not a 35suppported configuration however. 36 37## macOS 38 39Xcode 12 or higher is required. Latest Xcode is recommended to be able to build 40all code. You may use `xcode-select --install` to install it. 41 42Absence of Xcode will cause errors like: 43``` 44xcrun: error: invalid active developer path (/Library/Developer/CommandLineTools), missing xcrun at: /Library/Developer/CommandLineTools/usr/bin/xcrun 45``` 46 47## Android 48 49You'll need a Linux development machine. WebRTC is using the same Android 50toolchain as Chrome (downloaded into `third_party/android_tools`) so you won't 51need to install the NDK/SDK separately. 52 531. Install Java OpenJDK as described in the 54[Chromium Android prerequisites][chromium-android-build-build-instructions] 552. All set! If you don't run Ubuntu, you may want to have a look at 56[Chromium's Linux prerequisites][chromium-linux-prerequisites] for distro-specific details. 57 58 59[depot-tools]: https://commondatastorage.googleapis.com/chrome-infra-docs/flat/depot_tools/docs/html/depot_tools_tutorial.html#_setting_up 60[git]: http://git-scm.com 61[install-build-deps]: https://cs.chromium.org/chromium/src/build/install-build-deps.sh 62[chromium-linux-build-instructions]: https://chromium.googlesource.com/chromium/src/+/main/docs/linux/build_instructions.md 63[chromium-win-build-instructions]: https://chromium.googlesource.com/chromium/src/+/main/docs/windows_build_instructions.md 64[chromium-linux-prerequisites]: https://chromium.googlesource.com/chromium/src/+/main/docs/linux/build_instructions.md#notes 65[chromium-android-build-build-instructions]: https://chromium.googlesource.com/chromium/src/+/main/docs/android_build_instructions.md 66