Cross-compiling makes it possible for game developers to target Linux from Windows. At this time, cross-compiling is only supported for Windows, and Mac users currently have to resort to native compiling. Additionally, we support, test, and provide libraries and toolchains for the Linux-x86_64 platform.
If you are developing your project with Unreal Engine, version 4.13 (or older), refer to the Cross-Compiling for Linux (Legacy) documentation.
Why Cross-Compilation
Cross-compilation makes it possible for game developers, working in a Windows-centric workflow, to target Linux. At this time, cross-compilation is only supported for Windows. Mac users currently have to resort to native compilation. We support, test, and provide the libraries and toolchains for the Linux-x86_64 platform.
Getting the Toolchain
Please use the following table to download the appropriate toolchain:
| UE4 Version | Toolchain |
|---|---|
| 4.27 | -v19 clang-11.0.1-based |
| 4.26 | -v17 clang-10.0.1-based |
| 4.25 | -v16 clang-9.0.1-based |
| 4.23 and 4.24 | -v15 clang-8.0.1-based |
| 4.22 | -v13 clang-7.0.1-based |
| 4.21 | -v12 clang-6.0.1-based |
| 4.19 and 4.20 | -v11 clang-5.0.0-based |
| 4.18 | -v10 clang-5.0.0-based |
| 4.16 and 4.17 | -v9 clang-4.0.0-based |
| 4.14 and 4.15 | -v8 clang-3.9.0-based |
| 4.11 thru 4.13 | -v7 clang-3.7.0-based |
| 4.9 and 4.10 | -v6 clang-3.6.0-based |
| 4.8 and earlier | -v4 clang-3.5.0-based |
- For toolchains -v8 through -v13 , there is no need to extract files or set the environment variable — just run the installer package.
- For toolchains -v4 through -v7, we also provide the libraries and toolchains that enable you to compile for Linux ARM (original Raspberry Pi and up).
- Note that this will require you to make a (minor) code change in UnrealBuildTool (UBT).
- We currently have driver support for AMDGPU-PRO (not RADV) for users running Unreal Engine on CentOS.
Troubleshooting
To verify your current setup, run %LINUX_MULTIARCH_ROOT%x86_64-unknown-linux-gnu\bin\clang++ -v from the Command Prompt, which should display "clang version X.X.X ..." (see below):
