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.
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"