[HanziQ][16.0][macOS 10] Crash on start: EXC_CRASH (SIGABRT); DYLD, [0x4] Symbol missing

[posila]

I want to try one last thing before giving up on 10.9

[posila]

@SupplyDepoo: can you post also crash log from 0.16.16 when attempting to load a save, please? The one you posted is from creating new map, and I found out loading save doesn't call same function that causes crash on creating new map.

[SupplyDepoo]

Sure, here it is: https://gist.github.com/anonymous/118b8 ... 3b41aba0b4

Thanks!

[posila]

So we changed file copying routines to not use standard C++ copy_file function on OS X 10.9, and instead use mac specific copyfile()

Can you try 0.16.22, please?

[SupplyDepoo]

Great! I'm cancelling all of my plans for this week.

It works!!!!! Thank you so much!

⚙ BEST DEVS EVER! ⚙

[posila]

Yay! Thanks for your cooperation on this

[taixzo]

Hooray, it's working! Thank you so much for not giving up on us!

[skeller1982]

hi, just noticed this now after reading in the friday facts. wish i saw it earlier.

reasoning behind this problems:
the c++ stl libary is included in the OS for macOS, (and linked dynamically). if you use a newer c++ standard than the lib provided in the OS such problems appear.

in this case the c++17 filesystem was used (propably replaced the boost one)

possible solutions:
- drop some older macOS versions
- only use new language features, but avoid the library features
- have a wrapper for these and use boost (or other implementation) for support of older os versions (most stl and boost stuff is quite similar, allowing for a simple wrapper)

be aware of following c++17 features that may cause similar problems when used:
std::variant
std::optional
std::any
std::string_view
std::invoke
std::apply
std::filesystem
std::byte
+ some new map insertion methods (try_emplace and insert_or_assign)

[engineX]

Thanks !