brew install zig --HEAD fails when I also have llvm 15.0 installed

[blacktop]

Zig Version

master

Steps to Reproduce

brew install llvm
brew install zig --HEAD

Expected Behavior

nightly zig

Actual Behavior

==> cmake . -DZIG_STATIC_LLVM=ON
==> make install
Last 15 lines from /Users/blacktop/Library/Logs/Homebrew/zig/02.make:
/usr/bin/ranlib zigcpp/libzigstage1.a
[ 97%] Built target zigstage1
/Applications/Xcode-beta.app/Contents/Developer/usr/bin/make  -f CMakeFiles/zig1.dir/build.make CMakeFiles/zig1.dir/depend
cd /tmp/zig-20220921-47211-7q8jo && /opt/homebrew/Cellar/cmake/3.24.2/bin/cmake -E cmake_depends "Unix Makefiles" /tmp/zig-20220921-47211-7q8jo /tmp/zig-20220921-47211-7q8jo /tmp/zig-20220921-47211-7q8jo /tmp/zig-20220921-47211-7q8jo /tmp/zig-20220921-47211-7q8jo/CMakeFiles/zig1.dir/DependInfo.cmake --color=
/Applications/Xcode-beta.app/Contents/Developer/usr/bin/make  -f CMakeFiles/zig1.dir/build.make CMakeFiles/zig1.dir/build
[ 98%] Building CXX object CMakeFiles/zig1.dir/src/stage1/zig0.cpp.o
/opt/homebrew/Library/Homebrew/shims/mac/super/clang++  -I/tmp/zig-20220921-47211-7q8jo/deps/SoftFloat-3e/source/include -I/tmp/zig-20220921-47211-7q8jo -I/tmp/zig-20220921-47211-7q8jo/src -I/tmp/zig-20220921-47211-7q8jo/src/stage1 -I/tmp/zig-20220921-47211-7q8jo/deps/SoftFloat-3e-prebuilt -I/tmp/zig-20220921-47211-7q8jo/deps/SoftFloat-3e/source/8086 -O3 -DNDEBUG -arch arm64 -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX13.sdk -std=c++14 -DZIG_LINK_MODE=Dynamic -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -D_GNU_SOURCE -fvisibility-inlines-hidden -fno-exceptions -fno-rtti -Werror=type-limits -Wno-missing-braces -Wno-comment -MD -MT CMakeFiles/zig1.dir/src/stage1/zig0.cpp.o -MF CMakeFiles/zig1.dir/src/stage1/zig0.cpp.o.d -o CMakeFiles/zig1.dir/src/stage1/zig0.cpp.o -c /tmp/zig-20220921-47211-7q8jo/src/stage1/zig0.cpp
[ 98%] Linking CXX executable zig1
/opt/homebrew/Cellar/cmake/3.24.2/bin/cmake -E cmake_link_script CMakeFiles/zig1.dir/link.txt --verbose=1
/opt/homebrew/Library/Homebrew/shims/mac/super/clang++ -O3 -DNDEBUG -arch arm64 -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX13.sdk -Wl,-search_paths_first -Wl,-headerpad_max_install_names CMakeFiles/zig1.dir/src/stage1/zig0.cpp.o -o zig1  zigcpp/libzigstage1.a zigcpp/libopt_c_util.a zigcpp/libembedded_softfloat.a zigcpp/libzigcpp.a /opt/homebrew/opt/llvm/lib/libclangFrontendTool.a /opt/homebrew/opt/llvm/lib/libclangCodeGen.a /opt/homebrew/opt/llvm/lib/libclangFrontend.a /opt/homebrew/opt/llvm/lib/libclangDriver.a /opt/homebrew/opt/llvm/lib/libclangSerialization.a /opt/homebrew/opt/llvm/lib/libclangSema.a /opt/homebrew/opt/llvm/lib/libclangStaticAnalyzerFrontend.a /opt/homebrew/opt/llvm/lib/libclangStaticAnalyzerCheckers.a /opt/homebrew/opt/llvm/lib/libclangStaticAnalyzerCore.a /opt/homebrew/opt/llvm/lib/libclangAnalysis.a /opt/homebrew/opt/llvm/lib/libclangASTMatchers.a /opt/homebrew/opt/llvm/lib/libclangAST.a /opt/homebrew/opt/llvm/lib/libclangParse.a /opt/homebrew/opt/llvm/lib/libclangSema.a /opt/homebrew/opt/llvm/lib/libclangStaticAnalyzerFrontend.a /opt/homebrew/opt/llvm/lib/libclangStaticAnalyzerCheckers.a /opt/homebrew/opt/llvm/lib/libclangStaticAnalyzerCore.a /opt/homebrew/opt/llvm/lib/libclangAnalysis.a /opt/homebrew/opt/llvm/lib/libclangASTMatchers.a /opt/homebrew/opt/llvm/lib/libclangAST.a /opt/homebrew/opt/llvm/lib/libclangParse.a /opt/homebrew/opt/llvm/lib/libclangBasic.a /opt/homebrew/opt/llvm/lib/libclangEdit.a /opt/homebrew/opt/llvm/lib/libclangLex.a /opt/homebrew/opt/llvm/lib/libclangARCMigrate.a /opt/homebrew/opt/llvm/lib/libclangRewriteFrontend.a /opt/homebrew/opt/llvm/lib/libclangRewrite.a /opt/homebrew/opt/llvm/lib/libclangCrossTU.a /opt/homebrew/opt/llvm/lib/libclangIndex.a /opt/homebrew/opt/llvm/lib/libclangToolingCore.a /opt/homebrew/opt/llvm/lib/libclangExtractAPI.a /opt/homebrew/opt/llvm/lib/libclangSupport.a /opt/homebrew/opt/llvm/lib/liblldMinGW.a /opt/homebrew/opt/llvm/lib/liblldELF.a /opt/homebrew/opt/llvm/lib/liblldCOFF.a /opt/homebrew/opt/llvm/lib/liblldWasm.a /opt/homebrew/opt/llvm/lib/liblldMachO.a /opt/homebrew/opt/llvm/lib/liblldCommon.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMWindowsManifest.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMWindowsDriver.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMXRay.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMLibDriver.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMDlltoolDriver.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMCoverage.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMLineEditor.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMXCoreDisassembler.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMXCoreCodeGen.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMXCoreDesc.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMXCoreInfo.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMX86TargetMCA.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMX86Disassembler.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMX86AsmParser.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMX86CodeGen.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMX86Desc.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMX86Info.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMWebAssemblyDisassembler.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMWebAssemblyAsmParser.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMWebAssemblyCodeGen.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMWebAssemblyDesc.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMWebAssemblyUtils.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMWebAssemblyInfo.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMVEDisassembler.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMVEAsmParser.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMVECodeGen.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMVEDesc.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMVEInfo.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMSystemZDisassembler.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMSystemZAsmParser.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMSystemZCodeGen.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMSystemZDesc.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMSystemZInfo.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMSparcDisassembler.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMSparcAsmParser.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMSparcCodeGen.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMSparcDesc.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMSparcInfo.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMRISCVDisassembler.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMRISCVAsmParser.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMRISCVCodeGen.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMRISCVDesc.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMRISCVInfo.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMPowerPCDisassembler.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMPowerPCAsmParser.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMPowerPCCodeGen.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMPowerPCDesc.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMPowerPCInfo.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMNVPTXCodeGen.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMNVPTXDesc.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMNVPTXInfo.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMMSP430Disassembler.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMMSP430AsmParser.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMMSP430CodeGen.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMMSP430Desc.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMMSP430Info.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMMipsDisassembler.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMMipsAsmParser.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMMipsCodeGen.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMMipsDesc.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMMipsInfo.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMLanaiDisassembler.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMLanaiCodeGen.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMLanaiAsmParser.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMLanaiDesc.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMLanaiInfo.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMHexagonDisassembler.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMHexagonCodeGen.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMHexagonAsmParser.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMHexagonDesc.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMHexagonInfo.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMBPFDisassembler.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMBPFAsmParser.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMBPFCodeGen.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMBPFDesc.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMBPFInfo.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMAVRDisassembler.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMAVRAsmParser.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMAVRCodeGen.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMAVRDesc.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMAVRInfo.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMARMDisassembler.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMARMAsmParser.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMARMCodeGen.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMARMDesc.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMARMUtils.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMARMInfo.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMAMDGPUTargetMCA.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMAMDGPUDisassembler.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMAMDGPUAsmParser.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMAMDGPUCodeGen.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMAMDGPUDesc.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMAMDGPUUtils.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMAMDGPUInfo.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMAArch64Disassembler.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMAArch64AsmParser.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMAArch64CodeGen.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMAArch64Desc.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMAArch64Utils.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMAArch64Info.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMOrcJIT.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMMCJIT.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMJITLink.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMInterpreter.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMExecutionEngine.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMRuntimeDyld.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMOrcTargetProcess.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMOrcShared.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMDWP.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMDebugInfoGSYM.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMOption.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMObjectYAML.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMObjCopy.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMMCA.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMMCDisassembler.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMLTO.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMCFGuard.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMFrontendOpenACC.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMExtensions.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libPolly.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libPollyISL.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMPasses.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMObjCARCOpts.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMCoroutines.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMipo.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMInstrumentation.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMVectorize.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMLinker.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMFrontendOpenMP.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMDWARFLinker.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMGlobalISel.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMMIRParser.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMAsmPrinter.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMSelectionDAG.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMCodeGen.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMIRReader.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMAsmParser.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMInterfaceStub.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMFileCheck.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMFuzzMutate.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMTarget.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMScalarOpts.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMInstCombine.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMAggressiveInstCombine.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMTransformUtils.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMBitWriter.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMAnalysis.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMProfileData.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMSymbolize.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMDebugInfoPDB.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMDebugInfoMSF.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMDebugInfoDWARF.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMObject.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMTextAPI.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMMCParser.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMMC.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMDebugInfoCodeView.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMBitReader.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMFuzzerCLI.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMCore.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMRemarks.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMBitstreamReader.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMBinaryFormat.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMTableGen.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMSupport.a /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMDemangle.a -lm /opt/homebrew/lib/libz3.dylib -lz /opt/homebrew/lib/libzstd.1.5.2.dylib -lcurses -lxml2 
ld: in /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMTarget.a(TargetMachineC.cpp.o), could not parse object file /opt/homebrew/Cellar/llvm/15.0.0/lib/libLLVMTarget.a(TargetMachineC.cpp.o): 'Opaque pointers are only supported in -opaque-pointers mode (Producer: 'LLVM15.0.0' Reader: 'LLVM APPLE_1_1400.0.29.201_0')', using libLTO version 'LLVM version 14.0.0, (clang-1400.0.29.201)' for architecture arm64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make[2]: *** [zig1] Error 1
make[1]: *** [CMakeFiles/zig1.dir/all] Error 2
make: *** [all] Error 2

[Vexu]

using libLTO version 'LLVM version 14.0.0, (clang-1400.0.29.201)' for architecture arm64

This seems like it could be a problem.

[blacktop]

@Vexu do you have any recommends for flags/env vars I could set? I tried switching between latest RELEASE Xcode and BETA Xcode w/ the same results. I assume that I can set something to tell cmake to use the "required" llvm 15.0 ?

[motiejus]

You can download zig from ziglang.org/download and just unpack it: it ships a statically linked llvm. That's 100% enough at least on the Linux systems.

[kamidev]

You can download zig from ziglang.org/download and just unpack it: it ships a statically linked llvm. That's 100% enough at least on the Linux systems.

Using downloaded LLVM source works for ARM Macs, too. There may be Apple security warnings to work around, but that's easy. I describe how to do that at the end of this issue: #12069 (comment).

[gitusel]

Sharing my way using homebrew and local llvm 15 (updated with new zig formula which I edited to comment the odie "HEAD installs of zigare broken ... line):

brew upgrade zig --fetch-HEAD --debug
press 5 for shell
rm -fr build
export PATH="/Users/me/local/llvm15-release/bin:$PATH" #path to llvm 15
cmake -S . -B build -DZIG_STATIC_LLVM=on -DCMAKE_PREFIX_PATH=/Users/me/local/llvm15-release -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX=$HOMEBREW_FORMULA_PREFIX
cmake --build build
exit
press 2

Sometimes I need to force the linkage with brew link

if happy you can remove the previous compiled version with brew cleanup

I compiled llvm using https://github.com/ziglang/zig/wiki/How-to-build-LLVM,-libclang,-and-liblld-from-source

[lordnoriyuki]

Quick workaround enabling you to use brew's llvm 15 using master zig repo clone is modifying zig/CMakeLists.txt (line 879) changing

set(EXE_LDFLAGS " ")

to

set(EXE_LDFLAGS " -lto_library /opt/homebrew/Cellar/llvm/15.0.0/lib/libLTO.dylib")

[carlocab]

Try applying this patch to $(brew --repository homebrew/core)/Formula/zig.rb:

diff --git a/Formula/zig.rb b/Formula/zig.rb
index 375ba08e825..251a79c9dae 100644
--- a/Formula/zig.rb
+++ b/Formula/zig.rb
@@ -29,8 +29,13 @@ class Zig < Formula
   fails_with gcc: "5" # LLVM is built with GCC
 
   def install
-    system "cmake", ".", *std_cmake_args, "-DZIG_STATIC_LLVM=ON"
-    system "make", "install"
+    args = ["-DZIG_STATIC_LLVM=ON"]
+    # Apple `ld` does not like our LTOed object files.
+    args << "-DCMAKE_EXE_LINKER_FLAGS=-fuse-ld=lld" if OS.mac? && build.head?
+
+    system "cmake", "-S", ".", "-B", "build", *args, *std_cmake_args
+    system "cmake", "--build", "build"
+    system "cmake", "--install", "build"
   end
 
   test do

Let me know if it works and we can fix this for everyone else.

[lordnoriyuki]

@carlocab That works to get me past the initial problem, building stage1 and stage2 successfully. It then fails building stage3, which I think is just an instance of #12934.

[carlocab]

Yes, I've discovered the same thing. I'll try it on an Intel Mac to see, but I was putting that off since it's much slower.

Do you still run into #12934 with your workaround from #12923 (comment)? This is actually probably equivalent to a patch like

diff --git a/Formula/zig.rb b/Formula/zig.rb
index 375ba08e825..251a79c9dae 100644
--- a/Formula/zig.rb
+++ b/Formula/zig.rb
@@ -29,8 +29,13 @@ class Zig < Formula
   fails_with gcc: "5" # LLVM is built with GCC
 
   def install
-    system "cmake", ".", *std_cmake_args, "-DZIG_STATIC_LLVM=ON"
-    system "make", "install"
+    args = ["-DZIG_STATIC_LLVM=ON"]
+    # Apple `ld` does not like our LTOed object files.
+    llvm = deps.find { |dep| dep.name.match?(/^llvm(@\d+)?$/) }
+               .to_formula
+    args << "-DCMAKE_EXE_LINKER_FLAGS=-Wl,-lto_library,#{llvm.opt_lib}/libLTO.dylib" if OS.mac? && build.head?
+
+    system "cmake", "-S", ".", "-B", "build", *args, *std_cmake_args
+    system "cmake", "--build", "build"
+    system "cmake", "--install", "build"
   end
 
   test do

[lordnoriyuki]

Yup, I used that workaround on a clone of zig master to get me a working stage2 build. It failed the same way in building stage3.

[carlocab]

I get this failure on an Intel Mac, with Homebrew LLVM 15:

thread 2592744 panic: attempt to unwrap error: NotObject
/private/tmp/zig-20220923-54868-1907mdh/src/link/tapi/yaml.zig:59:28: 0x10c7f29c1 in link.tapi.yaml.Value.asList (zig2)
        if (self != .list) return error.TypeMismatch;
                           ^
/private/tmp/zig-20220923-54868-1907mdh/src/link/tapi/yaml.zig:59:28: 0x10c7f29c1 in link.tapi.yaml.Value.asList (zig2)
        if (self != .list) return error.TypeMismatch;
                           ^
/private/tmp/zig-20220923-54868-1907mdh/src/link/tapi/yaml.zig:59:28: 0x10c7f29c1 in link.tapi.yaml.Value.asList (zig2)
        if (self != .list) return error.TypeMismatch;
                           ^
/private/tmp/zig-20220923-54868-1907mdh/src/link/tapi/yaml.zig:59:28: 0x10c7f29c1 in link.tapi.yaml.Value.asList (zig2)
        if (self != .list) return error.TypeMismatch;
                           ^
/private/tmp/zig-20220923-54868-1907mdh/src/link/tapi/yaml.zig:59:28: 0x10c7f29c1 in link.tapi.yaml.Value.asList (zig2)
        if (self != .list) return error.TypeMismatch;
                           ^
/private/tmp/zig-20220923-54868-1907mdh/src/link/tapi/yaml.zig:59:28: 0x10c7f29c1 in link.tapi.yaml.Value.asList (zig2)
        if (self != .list) return error.TypeMismatch;
                           ^
/private/tmp/zig-20220923-54868-1907mdh/src/link/tapi/yaml.zig:59:28: 0x10c7f29c1 in link.tapi.yaml.Value.asList (zig2)
        if (self != .list) return error.TypeMismatch;
                           ^
/private/tmp/zig-20220923-54868-1907mdh/src/link/MachO/Object.zig:71:9: 0x10c33fbd4 in link.MachO.Object.parse (zig2)
        return error.NotObject;
        ^
/private/tmp/zig-20220923-54868-1907mdh/src/link/MachO/Archive.zig:229:5: 0x10c331e4e in link.MachO.Archive.parseObject (zig2)
    try object.parse(allocator, cpu_arch);
    ^
/private/tmp/zig-20220923-54868-1907mdh/src/link/MachO.zig:2065:28: 0x10c3f9218 in link.MachO.resolveSymbolsInArchives (zig2)
            const object = try archive.parseObject(gpa, cpu_arch, offsets.items[0]);
                           ^
/private/tmp/zig-20220923-54868-1907mdh/src/link/MachO/zld.zig:505:9: 0x10c2aa103 in link.MachO.zld.linkWithZld (zig2)
        try macho_file.resolveSymbolsInArchives();
        ^
/private/tmp/zig-20220923-54868-1907mdh/src/link/MachO.zig:438:22: 0x10c28b892 in link.MachO.flush (zig2)
        .one_shot => return zld.linkWithZld(self, comp, prog_node),
                     ^
/private/tmp/zig-20220923-54868-1907mdh/src/link.zig:656:23: 0x10c288575 in link.File.flush (zig2)
            .macho => return @fieldParentPtr(MachO, "base", base).flush(comp, prog_node),
                      ^
/private/tmp/zig-20220923-54868-1907mdh/src/Compilation.zig:2443:21: 0x10c2108f7 in Compilation.flush (zig2)
        else => |e| return e,
                    ^
/private/tmp/zig-20220923-54868-1907mdh/src/Compilation.zig:2421:9: 0x10c202d93 in Compilation.update (zig2)
        try comp.flush(main_progress_node);
        ^
/private/tmp/zig-20220923-54868-1907mdh/src/main.zig:3376:5: 0x10c19290e in main.updateModule (zig2)
    try comp.update();
    ^
/private/tmp/zig-20220923-54868-1907mdh/src/main.zig:3063:21: 0x10c0d9e3c in main.buildOutputType (zig2)
        else => |e| return e,
                    ^
/private/tmp/zig-20220923-54868-1907mdh/src/main.zig:230:9: 0x10c07bfeb in main.mainArgs (zig2)
        return buildOutputType(gpa, arena, args, .{ .build = .Exe });
        ^
/private/tmp/zig-20220923-54868-1907mdh/src/link/tapi/yaml.zig:59:28: 0x10c7f29c1 in link.tapi.yaml.Value.asList (zig2)
        if (self != .list) return error.TypeMismatch;
                           ^
/private/tmp/zig-20220923-54868-1907mdh/src/link/tapi/yaml.zig:59:28: 0x10c7f29c1 in link.tapi.yaml.Value.asList (zig2)
        if (self != .list) return error.TypeMismatch;
                           ^
/private/tmp/zig-20220923-54868-1907mdh/src/link/tapi/yaml.zig:59:28: 0x10c7f29c1 in link.tapi.yaml.Value.asList (zig2)
        if (self != .list) return error.TypeMismatch;
                           ^
/private/tmp/zig-20220923-54868-1907mdh/src/link/tapi/yaml.zig:59:28: 0x10c7f29c1 in link.tapi.yaml.Value.asList (zig2)
        if (self != .list) return error.TypeMismatch;
                           ^
/private/tmp/zig-20220923-54868-1907mdh/src/link/tapi/yaml.zig:59:28: 0x10c7f29c1 in link.tapi.yaml.Value.asList (zig2)
        if (self != .list) return error.TypeMismatch;
                           ^
/private/tmp/zig-20220923-54868-1907mdh/src/link/tapi/yaml.zig:59:28: 0x10c7f29c1 in link.tapi.yaml.Value.asList (zig2)
        if (self != .list) return error.TypeMismatch;
                           ^
/private/tmp/zig-20220923-54868-1907mdh/src/link/tapi/yaml.zig:59:28: 0x10c7f29c1 in link.tapi.yaml.Value.asList (zig2)
        if (self != .list) return error.TypeMismatch;
                           ^
/private/tmp/zig-20220923-54868-1907mdh/src/link/tapi/yaml.zig:59:28: 0x10c7f29c1 in link.tapi.yaml.Value.asList (zig2)
        if (self != .list) return error.TypeMismatch;
                           ^
/private/tmp/zig-20220923-54868-1907mdh/src/link/tapi/yaml.zig:59:28: 0x10c7f29c1 in link.tapi.yaml.Value.asList (zig2)
        if (self != .list) return error.TypeMismatch;
                           ^
/private/tmp/zig-20220923-54868-1907mdh/src/link/tapi/yaml.zig:59:28: 0x10c7f29c1 in link.tapi.yaml.Value.asList (zig2)
        if (self != .list) return error.TypeMismatch;
                           ^
/private/tmp/zig-20220923-54868-1907mdh/src/link/tapi/yaml.zig:59:28: 0x10c7f29c1 in link.tapi.yaml.Value.asList (zig2)
        if (self != .list) return error.TypeMismatch;
                           ^
/private/tmp/zig-20220923-54868-1907mdh/src/link/tapi/yaml.zig:59:28: 0x10c7f29c1 in link.tapi.yaml.Value.asList (zig2)
        if (self != .list) return error.TypeMismatch;
                           ^
/private/tmp/zig-20220923-54868-1907mdh/src/link/tapi/yaml.zig:59:28: 0x10c7f29c1 in link.tapi.yaml.Value.asList (zig2)
        if (self != .list) return error.TypeMismatch;
                           ^
/private/tmp/zig-20220923-54868-1907mdh/src/link/tapi/yaml.zig:59:28: 0x10c7f29c1 in link.tapi.yaml.Value.asList (zig2)
        if (self != .list) return error.TypeMismatch;
                           ^
???:?:?: 0x112fbbcec in ___zig_fail_unwrap (???)
/private/tmp/zig-20220923-54868-1907mdh/src/stage1.zig:48:43: 0x10c07babc in main (zig2)
        stage2.mainArgs(gpa, arena, args) catch unreachable;
                                          ^
???:?:?: 0x11f8ac52d in ??? (???)
???:?:?: 0x0 in ??? (???)

Seems like a different error from #12934.

[topolarity]

Yeah, this is distinct from #12934

Filed a bug here: #12943. The root problem is that Homebrew turned on LTO for its LLVM libraries, and zld does not support LTO

[glepnir]

got the same problem.