54 lines
2.4 KiB
Markdown
54 lines
2.4 KiB
Markdown
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# Unity IL2CPP Build Support for Linux
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Support for Linux players using IL2CPP is available from 2019.3 onwards.
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Operating systems (OS) have their own build systems which vary from one another. If you build using the headers and libraries on a particular OS, this might result in the built player not running on a different one. To address this, Unity provides a sysroot to build against which works on all supported Linux platforms.
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The sysroot also allows cross-compilation support which enables you to build Linux IL2CPP from Linux, macOS and Windows.
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## Prerequisites
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To use the following packages, you need to install the Linux Build Support (IL2CPP) module in your Unity Editor version. Use the Unity Hub to do this. For further information, see [Adding Modules to the Unity Editor](https://docs.unity3d.com/2021.2/Documentation/Manual/GettingStartedAddingEditorComponents.html).
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## Unity toolchain packages
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Unity provides a toolchain package, which installs the sysroot and a toolchain, for building binaries for the target. The naming convention for these packages is:
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* _host platform and architecture_
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* _target platform and architecture_
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If the host platform and architecture are the same as the target platform and architecture, shorten the name to platform and architecture.
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## Installing a Unity toolchain package
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To install a Unity toolchain package:
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1. Go to **Window** > **Package Manager**.
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2. Use the search bar to find the package, and click **Install** in the bottom right corner of the Package Manager window.
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3. Choose the package based on the host platform.
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| Host | Package |
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| ------- | ---------------------------------------- |
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| Linux | com.unity.toolchain.linux-x86_64 |
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| macOS | com.unity.toolchain.macos-x86_64-linux-x86_64 |
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| Windows | com.unity.toolchain.windows.x86_64-linux-x86_64 |
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## Using a Unity toolchain package:
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When you have installed your toolchain package, go to **Project Settings** > **Player** > **Configuration** and set the **ScriptingBackend** to **IL2CPP**.
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To build your project:
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1. Go to **File** > **Build Settings**.
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2. In the **Target Platform** dropdown menu, select **Linux**.
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3. Click **Build** or **Build and Run**.
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## Technical Details
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Requirements:
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- Unity version 2019.4.1f1
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- Linux Build Support (IL2CPP) module
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