Fixed typo

include/polycode/core/PolyOpenGLGraphicsInterface.h

@@ -41,7 +41,7 @@ THE SOFTWARE.
 
 #elif PLATFORM == PLATFORM_WINDOWS
 
-	#if defined(WINAPI_FAMILY) && (WINAPI_FAMILY == WINAPI_FAMILY_PC_APP || WINAPI == WINAPI_FAMILIY_PHONE_APP)
+	#if defined(WINAPI_FAMILY) && (WINAPI_FAMILY == WINAPI_FAMILY_PC_APP || WINAPI == WINAPI_FAMILY_PHONE_APP)
 		#define STRICT_OPENGLES2
 		#include <angle/GLES2/gl2.h>
 		#include <angle/GLES2/gl2ext.h>