#if !defined(HAVE_ASPRINTF) || defined(__APPLE__) || defined(SYS_BEOS)
# define asprintf vlc_asprintf
- VLC_EXPORT( int, vlc_asprintf, (char **, const char *, ... ) );
+ VLC_EXPORT( int, vlc_asprintf, (char **, const char *, ... ) ATTRIBUTE_FORMAT( 2, 3 ) );
#elif !defined(__PLUGIN__)
# define vlc_asprintf NULL
#endif