The fuzzing harnesses from #19143 don't compile on macOS. i.e building at 476436b2dec254bb988f8c7a6cbec1d7bb7cecfd:
```bash
In file included from test/fuzz/addition_overflow.cpp:7:
./test/fuzz/util.h:335:13: error: no matching function for call to 'AdditionOverflow'
        if (AdditionOverflow((uint64_t)fuzzed_file->m_offset, random_bytes.size())) {
            ^~~~~~~~~~~~~~~~
./test/fuzz/util.h:201:16: note: candidate template ignored: deduced conflicting types for parameter 'T' ('unsigned long long' vs. 'unsigned long')
NODISCARD bool AdditionOverflow(const T i, const T j) noexcept
               ^
./test/fuzz/util.h:346:13: error: no matching function for call to 'AdditionOverflow'
        if (AdditionOverflow(fuzzed_file->m_offset, n)) {
            ^~~~~~~~~~~~~~~~
./test/fuzz/util.h:201:16: note: candidate template ignored: deduced conflicting types for parameter 'T' ('long long' vs. 'long')
NODISCARD bool AdditionOverflow(const T i, const T j) noexcept
               ^
2 errors generated.

In file included from test/fuzz/buffered_file.cpp:9:
./test/fuzz/util.h:335:13: error: no matching function for call to 'AdditionOverflow'
        if (AdditionOverflow((uint64_t)fuzzed_file->m_offset, random_bytes.size())) {
            ^~~~~~~~~~~~~~~~
./test/fuzz/util.h:201:16: note: candidate template ignored: deduced conflicting types for parameter 'T' ('unsigned long long' vs. 'unsigned long')
NODISCARD bool AdditionOverflow(const T i, const T j) noexcept
               ^
./test/fuzz/util.h:346:13: error: no matching function for call to 'AdditionOverflow'
        if (AdditionOverflow(fuzzed_file->m_offset, n)) {
            ^~~~~~~~~~~~~~~~
./test/fuzz/util.h:201:16: note: candidate template ignored: deduced conflicting types for parameter 'T' ('long long' vs. 'long')
NODISCARD bool AdditionOverflow(const T i, const T j) noexcept
               ^
2 errors generated.
```
{
    const size_t n_elements = fuzzed_data_provider.ConsumeIntegralInRange<size_t>(0, max_vector_size);
    std::vector<T> r;
    for (size_t i = 0; i < n_elements; ++i) {
        r.push_back(fuzzed_data_provider.ConsumeIntegral<T>());
    }
    return r;
}
template <typename T>
NODISCARD inline std::optional<T> ConsumeDeserializable(FuzzedDataProvider& fuzzed_data_provider, const size_t max_length = 4096) noexcept
{
    const std::vector<uint8_t> buffer = ConsumeRandomLengthByteVector(fuzzed_data_provider, max_length);
    CDataStream ds{buffer, SER_NETWORK, INIT_PROTO_VERSION};
    T obj;
    try {
        ds >> obj;
    } catch (const std::ios_base::failure&) {
        return std::nullopt;
    }
    return obj;
}
NODISCARD inline opcodetype ConsumeOpcodeType(FuzzedDataProvider& fuzzed_data_provider) noexcept