Resolve LLVM error fatal error: 'csignal' file not found
Error message:
/ Users/exchen/Downloads/Unity-iPhone/Classes/main.mm:3:10: fatal error: 'csignal' file not found#include ^ ~ 1 error generated.
Solution: since the C++ file is included in the project, add / Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/include/c++/v1/ to Build Settings's Header Search Paths.
Original address: https://www.exchen.net/ solution-llvm- error-fatal-error-csignal-file-not-found.html
