Merge pull request #216 from MSOpenTech/v3-winrt-chipmunk

v3.11 build winrt versions with correct definition of CP_EXPORT

Author: minggo

chipmunk/include/chipmunk/chipmunk.h

@@ -28,7 +28,11 @@
 #ifdef WIN32
 	// For alloca().
 	#include <malloc.h>
-	#define CP_EXPORT __declspec(dllexport)
+    #if !defined(WINAPI_FAMILY) || (WINAPI_FAMILY == WINAPI_FAMILY_DESKTOP_APP)
+        #define CP_EXPORT __declspec(dllexport)
+    #else
+	    #define CP_EXPORT
+    #endif
 #else
 	#include <alloca.h>
 	#define CP_EXPORT