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[Guide] Building GameKit for arm64 (Unreal)

Prerequisites: * Check outtag v1.1.0 (https://github.com/aws/aws-gamekit/tree/v1.1.0) (this is the most recent tag that works with the Unreal plugin) * AWS C++ SDK must be using tag 1.9.185 Changes to build steps found in README.MD: 1. In all build steps where ```ANDROID_ABI=armeabi-v7a``` appears change it to ```ANDROID_ABI=arm64-v8a``` 2. In all build steps where ```ANDROID_API_LEVEL=24``` appears change it to ```ANDROID_API_LEVEL=X``` where ```X``` is the API level you want to build for (this step is only needed if you want to build for another API level). 3. For BOOST build, replace ```user-config.jam``` with the following: ``` import os ; local NDKRoot = [ os.environ NDKROOT ] ; local ClangBin = [ os.environ CLANGPATH ] ; local AndroidApiLevel = [ os.environ ANDROID_API_LEVEL ] ; using clang : arm64 : $(ClangBin)/aarch64-linux-android21-clang++.cmd : <cxxflags>-std=c++11 <archiver>$(NDKRoot)/toolchains/aarch64-linux-android-4.9/prebuilt/windows-x86_64/bin/aarch64-linux-android-ar <ranlib>$(NDKRoot)/toolchains/aarch64-linux-android-4.9/prebuilt/windows-x86_64/bin/aarch64-linux-android-ranlib ; ``` 4. And build with ```./b2 toolset=clang-arm64 target-os=android architecture=arm address-model=64 --without-python threading=multi link=static --layout=tagged variant=debug,release``` 5. In GameKit C++ codebase, open scripts\Android\regenerate_android_projects.bat and set ```ANDROID_ABI=arm64-v8a, DBoost_ARCHITECTURE="-a64"``` and ```ANDROID_API_LEVEL=X``` (API level change is only needed if you want to build for a different level) 6. Rebuild GameKit C++ with ```python scripts\aws_gamekit_cpp_build.py Android Release``` and copy the libraries to the Unreal plugin directory with python ```scripts\refresh_plugin.py —platform Android Release —unreal_plugin_path [Path to Unreal Project]\Plugins\AwsGameKit``` 7. Modify ```[Path to Unreal Project]\Plugins\AwsGameKit\Source\AwsGameKitCore\AwsGameKitCore.Build.cs``` to point to 64 bit versions of Boost libraries by changing lines 166-167 to ``` libs.Add("libboost_filesystem-mt-d-a64.a"); libs.Add("libboost_iostreams-mt-d-a64.a"); ``` and 172-173 to ``` libs.Add("libboost_filesystem-mt-a64.a"); libs.Add("libboost_iostreams-mt-a64.a"); ``` 8. In Unreal’s Project Settings enable Support for arm64 by navigating to Platforms/Android and clicking on “Support arm64 (aka arm64-v8a) 9. Package your game project for Android
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asked 3 months ago