It would be great if your howtobuildonmac.md doc also included some info about using this file to buildrun the project too.

However we dont have an automated build system for MacOS, so it would require some effort to make it work.

Also it might be helpful to check out the documentation for How to build on Linux and the discussion for building on Windows at 21 as the process is basically the same.

It can be very helpful for other people trying to build on Mac, and eventually we might be able to make an automated system as for Linux.

Help on this would be appreciated as we dont have here Mac machines to test it.

ERROR: UBT ERROR: Failed to produce item: Usersglebdevdeep-learning-learningcarlaUnrealCarlaUE4 4.18PluginsCarlaBinariesMacUE4Editor-Carla.dylib.

Total build time: 26.00 seconds (Local executor: 0.00 seconds).

Command UsersglebUnrealEngine4.18EngineBuildBatchFilesMacBuild.sh failed with exit code 5.

Invoking the GenerateProjectFiles.sh script with -PlatformsMac doesnt do any good.

The -cmakefiles appears to do the right thing, but I have not actually tried doing a build yet.

Since it is not clear what version of llvmclang is used by later releases of Xcode, and the 0.9 release of CARLA is using clang 5.0, I suspect that using cmake will be preferable to Xcode.

In Mac, I imagine we can go with the default compiler installed like we do on Windows.

It seems that Xcode 10 may be based on 5.0 (see Jokys comment on this thread: ).

The only ones I see that are missing are constexpr lambda expressions ( P0170R1 ) and template argument deduction for class templates ( P0091R3 and P0512R0 ).

If you arent using either of those features, then I would expect clang 4.0 and Xcode 9.2 to work.

That would be nice if true, since the official 4.19 release appears to be built with Xcode 9.2.

So Im going to keep CARLA 0.9.0 with C14 standard (still clang-5.0 by default as its the recommended for UE4.19 in Linux).

My Unreal Engine is installed from the Epic Games Launcher instead of from source.

Are you using the latest Carla 0.9.0 It was updated for Unreal Engine 4.19 instead of 4.18 so there may be new UE rebuild issues.

I was able to use your forks mac-build-0.9 branch to build Carla 0.9 with Xcode 9.4.1 as well, after modifying the Xcode version check in the UtilBuildToolsSetup.command file.

Copying the GenerateProjectFiles.sh to the UE root folder didnt work for me though, so instead I was able to modify the UtilBuildToolsBuildCarlaUE4.command file to call the built in Mac GenerateProjectFiles.sh that comes with the UE engine install package in place.

The Xcode project workspace UnrealCarlaUE4CarlaUE4.xcworkspace that this generates worked fine to Build Run the project and launch the UE Editor.

Ue4 Emulator Mac Build