When compiling an iOS game with Xcode versions prior to 11.4, you'll get an error like this.
Notably, this cuts off macOS versions before Mojave from being able to compile for iOS, since you need Mojave to install Xcode 11.
Code: [Select]
[haxelib] Undefined symbols for architecture arm64:
[haxelib] "___darwin_check_fd_set_overflow", referenced from:
[haxelib] _Curl_socket_check in liblime.a(929c1deb_select.o)
[haxelib] _Curl_poll in liblime.a(929c1deb_select.o)
[haxelib] ld: symbol(s) not found for architecture arm64
[haxelib] ** BUILD FAILED **
Notably, this cuts off macOS versions before Mojave from being able to compile for iOS, since you need Mojave to install Xcode 11.