Building error

When I install Polygeist using the first method, I met errors when buidling MLIR.

FAILED: tools/mlir/lib/Dialect/Math/IR/CMakeFiles/obj.MLIRMathDialect.dir/MathOps.cpp.o 
/usr/bin/clang++ -DGTEST_HAS_RTTI=0 -DMLIR_CUDA_CONVERSIONS_ENABLED=0 -DMLIR_ROCM_CONVERSIONS_ENABLED=0 -D_DEBUG -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -I/Users/mxch/Workdir/Polygeist/llvm-project/build/tools/mlir/lib/Dialect/Math/IR -I/Users/mxch/Workdir/Polygeist/llvm-project/mlir/lib/Dialect/Math/IR -I/Users/mxch/Workdir/Polygeist/llvm-project/build/include -I/Users/mxch/Workdir/Polygeist/llvm-project/llvm/include -I/Users/mxch/Workdir/Polygeist/llvm-project/mlir/include -I/Users/mxch/Workdir/Polygeist/llvm-project/build/tools/mlir/include -fPIC -fvisibility-inlines-hidden -Werror=date-time -Werror=unguarded-availability-new -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wmissing-field-initializers -pedantic -Wno-long-long -Wc++98-compat-extra-semi -Wimplicit-fallthrough -Wcovered-switch-default -Wno-noexcept-type -Wnon-virtual-dtor -Wdelete-non-virtual-dtor -Wsuggest-override -Wstring-conversion -Wmisleading-indentation -Wctad-maybe-unsupported -fdiagnostics-color -Werror=mismatched-tags -Werror=global-constructors -g -arch arm64 -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX12.3.sdk  -fno-exceptions -fno-rtti -std=c++17 -MD -MT tools/mlir/lib/Dialect/Math/IR/CMakeFiles/obj.MLIRMathDialect.dir/MathOps.cpp.o -MF tools/mlir/lib/Dialect/Math/IR/CMakeFiles/obj.MLIRMathDialect.dir/MathOps.cpp.o.d -o tools/mlir/lib/Dialect/Math/IR/CMakeFiles/obj.MLIRMathDialect.dir/MathOps.cpp.o -c /Users/mxch/Workdir/Polygeist/llvm-project/mlir/lib/Dialect/Math/IR/MathOps.cpp
/Users/mxch/Workdir/Polygeist/llvm-project/mlir/lib/Dialect/Math/IR/MathOps.cpp:427:26: error: use of undeclared identifier 'roundeven'
          return APFloat(roundeven(a.convertToDouble()));

Can I get some help?

Reproduce the first Polygeist installation method on the reported macOS arm64 setup. Start with llvm-project/mlir/lib/Dialect/Math/IR/MathOps.cpp around line 427 and inspect the MLIR build failure for the undeclared roundeven identifier. Done means the MLIR build completes successfully on the affected setup.