simplify the platform check and add a warning

py25/bacpypes/__init__.py

@@ -2,6 +2,18 @@
 
 """BACnet Python Package"""
 
+#
+#   Platform Check
+#
+
+import sys as _sys
+import warnings as _warnings
+
+_supported_platforms = ('linux2', 'win32', 'darwin')
+
+if _sys.platform not in _supported_platforms:
+    _warnings.warn("unsupported platform", RuntimeWarning)
+
 #
 #   Communications Core Modules
 #

py25/bacpypes/bvllservice.py

@@ -91,7 +91,7 @@ class UDPMultiplexer:
         bind(self.direct, self.directPort)
 
         # create and bind the broadcast address for non-Windows
-        if specialBroadcast and (not noBroadcast) and 'win' not in sys.platform:
+        if specialBroadcast and (not noBroadcast) and sys.platform in ('linux2', 'darwin'):
             self.broadcast = _MultiplexClient(self)
             self.broadcastPort = UDPDirector(self.addrBroadcastTuple, reuse=True)
             bind(self.direct, self.broadcastPort)

py25/bacpypes/task.py

@@ -21,7 +21,7 @@ _task_manager = None
 _unscheduled_tasks = []
 
 # only defined for linux platforms
-if sys.platform.startswith(('linux', 'darwin')):
+if sys.platform in ('linux2', 'darwin'):
     from .event import WaitableEvent
     #
     #   _Trigger