Swift 3 compilation error cmath not found

[user-294412323]

Using Xcode 8.2.1 (Mac OS 10.12.3) and starting with a fresh Swift project, I followed the setup for Objective C and included the bridging file as well as setting up libLeap.dylib in target > build Phases > Copy Files. The app won't compile and I get the error:

/Users/me/Desktop/myapp/myapp/LeapMath.h:12:10: error: 'cmath' file not found
#include <cmath>
         ^
<unknown>:0: error: failed to import bridging header '/Users/me/Desktop/myapp/myapp/myapp-Bridging-Header.h'

In Build Settings for the target the C++ Language Dialect is set to GNU++11 ... and the C++ Standard Library is set to libc++ ...

Is there any sample using current OS and Xcode and Swift 3?

[Joe_Ward]

The LeapObjectiveC files contain Objective C++ code and must be compiled as such. I don't know of any examples using Swift (which doesn't mean such a thing doesn't exist).

[user-294412323]

It would be valuable to the Mac development community to have a Swift option in light of Apple's and the development community's direction in that area