Well, if you build your software the Apple way(TM) and use Xcode, just opening the project will show you all the deprecation warning. A C++ Xcode project I have at work has a lot of them, mainly for using old Frameworks like CoreServices, which do not have any modern C/C++ equivalent (they were replaced by Obj-C/Swift APIs) and which, while very old fashion/unsafe in their style, are most of the time way more worth to call for very short task like getting a path, rather then having to whip out a .mm and write some horrible Objective-C++.

However, if you’re not using Swift/Obj-C and have a different/custom build system, you’re probably toasted. Although, if you’re using CMake, you might have some luck in getting these info by generating an XCode project.