return 0;
}
-#elif defined(__OpenBSD__) || (defined(__FreeBSD__) && __FreeBSD__ > 2) || defined(__DragonFly__)
+#elif defined(__OpenBSD__) || (defined(__FreeBSD__) && __FreeBSD__ > 2) || defined(__DragonFly__) || (defined(__GLIBC__) && defined(__FreeBSD_kernel__))
# include <unistd.h>