The @ rpath and @ loader_path of dylib in Mac OS are minor issues.

Mac OS development is really weird, my ProgramIt can be divided into common dylib and application-layer apps. After debugging, you can use xcode to start the program and call dylib. However, you cannot directly click EXE to start the program and cannot find the dylib file, yes, I have already set @ rpath in the dylib project and @ loader_path in the app project. After a long time in xcode4, I have not been able to solve the problem, and I have no way to switch back to xcode3, I remember it was okay in xcode3 ?! Go back to xcode3 and test again. It's strange !!! Later, the ghost Put A/behind @ loader_path. I am dizzy. It is estimated that xcode4 is also a problem. I will test xcode4 immediately.