setup.py - handle OSX platform

setup.py

@@ -54,10 +54,13 @@
 IS_WIN = 'Windows' in pf
 IS_WSL = 'Linux' in pf and 'Microsoft' in pf # Windows Subsystem for Linux (WSL)
 IS_LNX = 'Linux' in pf and not 'Microsoft' in pf
-MY_OS = 'WIN' if IS_WIN else 'LIN' if IS_LNX else 'WSL' if IS_WSL else None
+IS_OSX = 'macOS' in pf
+MY_OS = 'WIN' if IS_WIN else 'LIN' if IS_LNX else 'WSL' if IS_WSL else 'OSX' if IS_OSX else None
 if not MY_OS:
-    print(f'Unexpected platform: {pf}')
+    print(f'[{__name__}] Unexpected platform: {pf}')
     sys.exit(1)
+else:
+    print(f'[{__name__}] running on: {pf}, id: {MY_OS}')
 
 modfunc = {} # holds refs to functions in this module