Here's the error log. Using normal cmake command as instructed in README.

[ 76%] Building CXX object CMakeFiles/binaryen.dir/src/wasm/wasm-debug.cpp.o
In file included from /Users/user/Downloads/binaryen/src/wasm/wasm-debug.cpp:21:
In file included from /Users/user/Downloads/binaryen/third_party/llvm-project/include/llvm/ObjectYAML/DWARFEmitter.h:15:
In file included from /Users/user/Downloads/binaryen/third_party/llvm-project/include/llvm/ADT/StringMap.h:16:
In file included from /Users/user/Downloads/binaryen/third_party/llvm-project/include/llvm/ADT/StringRef.h:12:
In file included from /Users/user/Downloads/binaryen/third_party/llvm-project/include/llvm/ADT/STLExtras.h:21:
/Users/user/Downloads/binaryen/third_party/llvm-project/include/llvm/ADT/iterator.h:68:19: error: 'iterator<std::forward_iterator_tag, llvm::StringMapEntry<std::unique_ptrllvm::MemoryBuffer>>' is deprecated [-Werror,-Wdeprecated-declarations]
68 | : public std::iterator<IteratorCategoryT, T, DifferenceTypeT, PointerT,
| ^
/Users/user/Downloads/binaryen/third_party/llvm-project/include/llvm/ADT/StringMap.h:489:14: note: in instantiation of template class 'llvm::iterator_facade_base<llvm::StringMapIterator<std::unique_ptrllvm::MemoryBuffer>, std::forward_iterator_tag, llvm::StringMapEntry<std::unique_ptrllvm::MemoryBuffer>>' requested here
489 | : public iterator_facade_base<DerivedTy, std::forward_iterator_tag,
| ^
/Users/user/Downloads/binaryen/third_party/llvm-project/include/llvm/ADT/StringMap.h:548:34: note: in instantiation of template class 'llvm::StringMapIterBase<llvm::StringMapIterator<std::unique_ptrllvm::MemoryBuffer>, llvm::StringMapEntry<std::unique_ptrllvm::MemoryBuffer>>' requested here
548 | class StringMapIterator : public StringMapIterBase<StringMapIterator,
| ^
/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/c++/v1/__utility/pair.h:74:7: note: in instantiation of template class 'llvm::StringMapIterator<std::unique_ptrllvm::MemoryBuffer>' requested here
74 | _T1 first;
| ^
/Users/user/Downloads/binaryen/third_party/llvm-project/include/llvm/ADT/StringMap.h:378:47: note: in instantiation of template class 'std::pair<llvm::StringMapIterator<std::unique_ptrllvm::MemoryBuffer>, bool>' requested here
378 | ValueTy &operator[](StringRef Key) { return try_emplace(Key).first->second; }
| ^
/Users/user/Downloads/binaryen/src/wasm/wasm-debug.cpp:59:17: note: in instantiation of member function 'llvm::StringMap<std::unique_ptrllvm::MemoryBuffer>::operator[]' requested here
59 | sections[section.name.substr(1)] = llvm::MemoryBuffer::getMemBufferCopy(
| ^
/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/c++/v1/__iterator/iterator.h:23:29: note: 'iterator<std::forward_iterator_tag, llvm::StringMapEntry<std::unique_ptrllvm::MemoryBuffer>>' has been explicitly marked deprecated here
23 | struct _LIBCPP_TEMPLATE_VIS _LIBCPP_DEPRECATED_IN_CXX17 iterator {
| ^
/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/c++/v1/__config:731:41: note: expanded from macro '_LIBCPP_DEPRECATED_IN_CXX17'
731 | # define _LIBCPP_DEPRECATED_IN_CXX17 _LIBCPP_DEPRECATED
| ^
/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/c++/v1/__config:696:49: note: expanded from macro '_LIBCPP_DEPRECATED'
696 | # define _LIBCPP_DEPRECATED attribute((deprecated))
| ^
In file included from /Users/user/Downloads/binaryen/src/wasm/wasm-debug.cpp:21:
In file included from /Users/user/Downloads/binaryen/third_party/llvm-project/include/llvm/ObjectYAML/DWARFEmitter.h:15:
In file included from /Users/user/Downloads/binaryen/third_party/llvm-project/include/llvm/ADT/StringMap.h:16:
In file included from /Users/user/Downloads/binaryen/third_party/llvm-project/include/llvm/ADT/StringRef.h:12:
In file included from /Users/user/Downloads/binaryen/third_party/llvm-project/include/llvm/ADT/STLExtras.h:21:
/Users/user/Downloads/binaryen/third_party/llvm-project/include/llvm/ADT/iterator.h:68:19: error: 'iterator<std::forward_iterator_tag, const llvm::StringMapEntry<std::unique_ptrllvm::MemoryBuffer>>' is deprecated [-Werror,-Wdeprecated-declarations]
68 | : public std::iterator<IteratorCategoryT, T, DifferenceTypeT, PointerT,
| ^
/Users/user/Downloads/binaryen/third_party/llvm-project/include/llvm/ADT/StringMap.h:489:14: note: in instantiation of template class 'llvm::iterator_facade_base<llvm::StringMapConstIterator<std::unique_ptrllvm::MemoryBuffer>, std::forward_iterator_tag, const llvm::StringMapEntry<std::unique_ptrllvm::MemoryBuffer>>' requested here
489 | : public iterator_facade_base<DerivedTy, std::forward_iterator_tag,
| ^
/Users/user/Downloads/binaryen/third_party/llvm-project/include/llvm/ADT/StringMap.h:531:14: note: in instantiation of template class 'llvm::StringMapIterBase<llvm::StringMapConstIterator<std::unique_ptrllvm::MemoryBuffer>, const llvm::StringMapEntry<std::unique_ptrllvm::MemoryBuffer>>' requested here
531 | : public StringMapIterBase<StringMapConstIterator,
| ^
/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/c++/v1/__type_traits/is_constructible.h:24:103: note: in instantiation of template class 'llvm::StringMapConstIterator<std::unique_ptrllvm::MemoryBuffer>' requested here
24 | struct _LIBCPP_TEMPLATE_VIS is_constructible : public integral_constant<bool, __is_constructible(_Tp, _Args...)> {};
| ^
/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/c++/v1/__utility/pair.h:158:14: note: in instantiation of template class 'std::is_constructible<llvm::StringMapIterator<std::unique_ptrllvm::MemoryBuffer>, const llvm::StringMapIterator<std::unique_ptrllvm::MemoryBuffer> &>' requested here
158 | return is_constructible<first_type, _U1>::value && is_constructible<second_type, _U2>::value;
| ^
/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/c++/v1/__utility/pair.h:177:59: note: in instantiation of function template specialization 'std::pair<llvm::StringMapIterator<std::unique_ptrllvm::MemoryBuffer>, bool>::_CheckArgs::__is_pair_constructible<const llvm::StringMapIterator<std::unique_ptrllvm::MemoryBuffer> &, const bool &>' requested here
177 | __enable_if_t<_CheckArgsDep<_Dummy>::template __is_pair_constructible<_T1 const&, _T2 const&>(), int> = 0>
| ^
/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/c++/v1/__utility/pair.h:180:7: note: while substituting prior template arguments into non-type template parameter [with _Dummy = true]
180 | pair(_T1 const& __t1, _T2 const& __t2) noexcept(is_nothrow_copy_constructible<first_type>::value &&
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
181 | is_nothrow_copy_constructible<second_type>::value)
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
182 | : first(__t1), second(__t2) {}
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/c++/v1/__utility/pair.h:577:10: note: while substituting deduced template arguments into function template 'pair' [with _Dummy = (no value), $1 = (no value)]
577 | return pair<typename __unwrap_ref_decay<_T1>::type, typename __unwrap_ref_decay<_T2>::type>(
| ^
/Users/user/Downloads/binaryen/third_party/llvm-project/include/llvm/ADT/StringMap.h:436:19: note: in instantiation of function template specialization 'std::make_pair<llvm::StringMapIterator<std::unique_ptrllvm::MemoryBuffer>, bool>' requested here
436 | return std::make_pair(iterator(TheTable + BucketNo, false),
| ^
/Users/user/Downloads/binaryen/third_party/llvm-project/include/llvm/ADT/StringMap.h:378:47: note: in instantiation of function template specialization 'llvm::StringMap<std::unique_ptrllvm::MemoryBuffer>::try_emplace<>' requested here
378 | ValueTy &operator[](StringRef Key) { return try_emplace(Key).first->second; }
| ^
/Users/user/Downloads/binaryen/src/wasm/wasm-debug.cpp:59:17: note: in instantiation of member function 'llvm::StringMap<std::unique_ptrllvm::MemoryBuffer>::operator[]' requested here
59 | sections[section.name.substr(1)] = llvm::MemoryBuffer::getMemBufferCopy(
| ^
/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/c++/v1/__iterator/iterator.h:23:29: note: 'iterator<std::forward_iterator_tag, const llvm::StringMapEntry<std::unique_ptrllvm::MemoryBuffer>>' has been explicitly marked deprecated here
23 | struct _LIBCPP_TEMPLATE_VIS _LIBCPP_DEPRECATED_IN_CXX17 iterator {
| ^
/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/c++/v1/__config:731:41: note: expanded from macro '_LIBCPP_DEPRECATED_IN_CXX17'
731 | # define _LIBCPP_DEPRECATED_IN_CXX17 _LIBCPP_DEPRECATED
| ^
/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/c++/v1/__config:696:49: note: expanded from macro '_LIBCPP_DEPRECATED'
696 | # define _LIBCPP_DEPRECATED attribute((deprecated))
| ^
2 errors generated.
make[2]: *** [CMakeFiles/binaryen.dir/src/wasm/wasm-debug.cpp.o] Error 1
make[1]: *** [CMakeFiles/binaryen.dir/all] Error 2
make: *** [all] Error 2
user@null binaryen %