# Rebuild UnrealBuildTool in UE 5.4 on MacOS **URL:** \ **Category:** C++\ **Tags:** Macos, unreal-engine, unrealbuildtool, CPP, question\ **Created:** [September 3, 2024, 10:44am UTC](https://forums.unrealengine.com/t/rebuild-unrealbuildtool-in-ue-5-4-on-macos/2003247 "2024-09-03T10:44:23Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![Zaratusa](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Zaratusa](https://forums.unrealengine.com/u/Zaratusa)\ **Post date:** [September 3, 2024, 10:44am UTC](https://forums.unrealengine.com/t/rebuild-unrealbuildtool-in-ue-5-4-on-macos/2003247/1 "2024-09-03T10:44:23Z")
Hi, I’ve made some adjustments to the `WriteEntitlements` method in `IOSExports.cs` in the UnrealBuildTool in order to write associated domains to the entitlements. But the changes doesn’t seem to trigger a new build for the BuildTool. I’ve also tried cleaning the repository with `git clean -fdx` which also didn’t take effect on the generated IOS project. Any ideas how the changes in the UnrealBuildTool take effect on the generated project files? ---
**Author:** ![Zaratusa](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Zaratusa](https://forums.unrealengine.com/u/Zaratusa)\ **Post date:** [September 14, 2024, 11:33am UTC](https://forums.unrealengine.com/t/rebuild-unrealbuildtool-in-ue-5-4-on-macos/2003247/2 "2024-09-14T11:33:11Z")
Turns out the build tool is rebuild, but the new XCode workflow doesn’t use the files anymore 😕 ---
**Author:** ![system](https://d3kjluh73b9h9o.cloudfront.net/original/4X/7/1/3/713c9d3f58553f0de89543d76a8a3a2779dc9fa4.png) [@system](https://forums.unrealengine.com/u/system)\ **Post date:** [October 14, 2024, 11:33am UTC](https://forums.unrealengine.com/t/rebuild-unrealbuildtool-in-ue-5-4-on-macos/2003247/3 "2024-10-14T11:33:26Z")
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