#ifndef OSG_EXPORT
#define OSG_EXPORT 1

#ifdef WIN32
	#pragma warning( disable : 4251 )
	#pragma warning( disable : 4275 )
	#pragma warning( disable : 4786 )
#endif

#if defined(_MSC_VER)
	#  ifdef SG_LIBRARY
	#    define SG_EXPORT   __declspec(dllexport)
	#  else
	#    define SG_EXPORT   __declspec(dllimport)
	#  endif /* SG_LIBRARY */
#else
	#  define SG_EXPORT
#endif  

/* Define NULL pointer value */

#ifndef NULL
#ifdef  __cplusplus
#define NULL    0
#else
#define NULL    ((void *)0)
#endif
#endif

#endif