SDL error on startup on some Android <=8.1 devices: dlopen failed: cannot locate symbol "iconv_open" referenced by libSDL3.so

[Susko3]

• This issue might be very similar to SDL error on startup on some Android devices: dlopen failed: cannot locate symbol "posix_spawn_file_actions_addchdir_np" referenced by libSDL3.so #13793

Downstream issues:

• Game no longer launches on Android 8.1 and below ppy/osu#34992
• I can't open the game on android ppy/osu#35036

On Android 7.0.1 and 8.1, our users are getting the following error on startup:

SDL Error

An error occurred while trying to start the application. Please try again and/or reinstall.

Error: dlopen failed: cannot locate symbol "iconv_open" referenced by "/data/app/.../lib/arm64/libSDL3.so"...

It works fine on newer devices, like those with Android 11 and 13.

SDL3 docs says it supports Android 5.0 and up, so it should not error out like this on older devices.

[slouken]

Yep, I haven't seen this, but I'm also not building with CMake on Android. We should not look for iconv when building on Android. @Susko3, do you want to make a PR for this?

Thanks!