1

Hi,

I clone and checkout everything related to SWIFT-5.1.2-RELEASE (./utils/update-checkout --clone --tag swift-5.1.2-RELEASE --scheme swift-5.1.2-RELEASE). After that, i generate the toolchain (./utils/build-toolchain BUILD_PREFIX) This took like 3 hours, when finalized i move the .toolchain into ~/Library/Developer/Toolchains and i selected it in xcode.

When i try to compile my project (on xcode with the new toolchain) i get the following:
In Frameworks/NewRelicAgent.framework/NewRelicAgent(json_st.cc.o), archive member 'json_st.cc.o' with length 96528 is not mach-o or llvm bitcode for architecture x86_64
Do you know if i miss something when i build the toolchain?. this doesn't happen with the default xcodeToolchain.

Also, if i create a new xcode project and compile it with the custom toolchain, it will compile and run.

Thanks!

2

what's the Xcode version and macOS version you used?

3

I'm seeing a similar issue when using the Swift Toolchain. Haven't found a solution.
"archive member is not mach-o or llvm bitcode for architecture x86_64"

Xcode 11.5, Toolchain of June 9.

4

Yes, i believe that swift compiler doesn't support xcode 11.5. At least docs and CI Servers says that you need to use 11.4.

5

Figured it out, in our case we use release configuration for some libs and debug for others. This mismatch caused the warning.