Something
public text v1 · immutable
/*
#if __FreeBSD_version >= 700000
#error This driver does not support FreeBSD 7.x/-CURRENT!
#endif
#if __FreeBSD_version >= 600000 && __FreeBSD_version < 600034
#error This driver does not support FreeBSD 6.x/-CURRENT!
#endif
#if __FreeBSD_version < 503000
#error This driver requires FreeBSD 5.3 or later!
#endif
*/