SIGSEGV / SIGILL fix

[AJ92]

in PiperLib.cs:

            public struct OptionalLong
            {
                [MarshalAs(UnmanagedType.I1)]  // ensures 1-byte boolean
                public bool hasValue;
                public long value;
            }

            [StructLayout(LayoutKind.Sequential)]
            public struct OptionalPhonemeSilenceSecondsMap
            {
                [MarshalAs(UnmanagedType.I1)]  // ensures 1-byte boolean
                public bool hasValue;
                public PhonemeSilenceSecondsMap* value;
            }

Note the extra [MarshalAs(UnmanagedType.I1)] ! without them this produces random crashes (segmentation fault or illegal instructions)

bools in C are 1 byte, but in C# they are 4 bytes !!!

[mrtrizer]

Yeah, but the struct should be packed in order for it to be really 1 byte. With padding the book should still take 4 or 8 bytes. Otherwise it wouldn't work on my side. Did you recompile the lib?

In any case, I would appreciate a PR, as I don't work on this integration anymore.

[AJ92]

padding could be true in this particular constellation, as all other members are probably 4 bytes too, but suspect, that pointer are probably 8 bytes ? and therefore probably still a misalignment somewhere.

answer to your question: yes, i rebuilt everything and tested under windows + linux with mono and il2cpp in both cases. Linux build was very picky, windows more forgiving, but still crashed reeeeally rarely, but i haven't investigated those particular crashes. Linux call stacks on the other hand where very clear, that this was the reason.

[mrtrizer]

I would appreciate a PR if you made any changes in CMake to make it build on Linux. I also had troubles building it in release version on Windows recently. If you managed to resolve all this, this might help those who tries to set everything up.
I unfortunately can't work on the project because of family reasons right now. But considering the pace of AI evolution, when I return to this, it's going to be very much outdated.