Introduction to the buildsystem

    • Godot can be compiled for a dozen different platforms: all PC platforms, all mobile platforms, many consoles, and WebAssembly.
    • Developers often need to compile for several of the platforms at the same time, or even different targets of the same platform. They can’t afford reconfiguring and rebuilding the project each time. SCons can do this with no sweat, without breaking the builds.
    • SCons will never break a build no matter how many changes, configurations, additions, removals etc. You have more chances to die struck by lightning than needing to clean and rebuild in SCons.
    • Godot build process is not simple. Several files are generated by code (binders), others are parsed (shaders), and others need to offer customization (plugins). This requires complex logic which is easier to write in an actual programming language (like Python) rather than using a mostly macro-based language only meant for building.
    • Godot build process makes heavy use of cross-compiling tools. Each platform has a specific detection process, and all these must be handled as specific cases with special code written for each.

    So, please try to keep an open mind and get at least a little familiar with it if you are planning to build Godot yourself.

    Setup

    Please refer to the documentation for , Compiling for iOS, , Compiling for Universal Windows Platform, , Compiling for Windows and .

    Note that for Windows/Visual Studio, you need to use or similar, depending on your install, instead of the standard Windows command prompt to enter the commands below.

    Platform selection

    Godot’s build system will begin by detecting the platforms it can build for. If not detected, the platform will simply not appear on the list of available platforms. The build requirements for each platform are described in the rest of this tutorial section.

    SCons is invoked by just calling scons. If no platform is specified, SCons will detect the target platform automatically based on the host platform. It will then start building for the target platform right away.

    To list the available target platforms, use scons platform=list:

    To build for a platform (for example, x11), run with the platform= (or p= to make it short) argument:

    1. user@host:~/godot$ scons platform=x11

    This will start the build process, which will take a while. If you want SCons to build faster, use the -j <cores> parameter to specify how many cores will be used for the build. Or leave it using one core, so you can use your computer for something else :)

    1. user@host:~/godot$ scons platform=x11 -j 4

    The resulting binaries will be placed in the bin/ subdirectory, generally with this naming convention:

    For the previous build attempt, the result would look like this:

    1. user@host:~/godot$ ls bin

    This means that the binary is for X11, is not optimized, has tools (the whole editor) compiled in, and is meant for 64 bits.

    A Windows binary with the same configuration will look like this:

    1. C:\godot> dir bin/
    2. godot.windows.tools.64.exe

    Copy that binary to any location you like, as it contains the project manager, editor and all means to execute the game. However, it lacks the data to export it to the different platforms. For that the export templates are needed (which can be either downloaded from godotengine.org, or you can build them yourself).

    Aside from that, there are a few standard options that can be set in all build targets, and which will be explained below.

    Tools

    Tools are enabled by default in all PC targets (Linux, Windows, macOS), disabled for everything else. Disabling tools produces a binary that can run projects but that does not include the editor or the project manager.

    Target

    Target controls optimization and debug flags. Each mode means:

    • debug: Build with C++ debugging symbols, runtime checks (performs checks and reports error) and none to little optimization.
    • release_debug: Build without C++ debugging symbols and optimization, but keep the runtime checks (performs checks and reports errors). Official editor binaries use this configuration.
    • release: Build without symbols, with optimization and with little to no runtime checks. This target can’t be used together with tools=yes, as the editor requires some debug functionality and run-time checks to run.
    1. scons platform=<platform> target=debug/release_debug/release

    Bits is meant to control the CPU or OS version intended to run the binaries. It is focused mostly on desktop platforms and ignored everywhere else.

    • 32: Build binaries for 32-bit platforms.
    • 64: Build binaries for 64-bit platforms.
    1. scons platform=<platform> bits=default/32/64

    This flag appends .32 or suffixes to resulting binaries when relevant. If bits=default is used, the suffix will match the detected architecture.

    Other build options

    There are several other build options that you can use to configure the way Godot should be built (compiler, debug options, etc.) as well as the features to include/disable.

    Check the output of scons --help for details about each option for the version you are willing to compile.

    Export templates

    Official export templates are downloaded from the Godot Engine site: . However, you might want to build them yourself (in case you want newer ones, you are using custom modules, or simply don’t trust your own shadow).

    If you download the official export templates package and unzip it, you will notice that most files are optimized binaries or packages for each platform:

    To create those yourself, follow the instructions detailed for each platform in this same tutorial section. Each platform explains how to create its own template.

    The version.txt file should contain the corresponding Godot version identifier. This file is used to install export templates in a version-specific directory to avoid conflicts. For instance, if you are building export templates for Godot 3.1.1, version.txt should contain 3.1.1.stable on the first line (and nothing else). This version identifier is based on the major, minor, patch (if present) and status lines of the version.py file in the Godot Git repository.