#define DTTOIF(x) ((x)<<12)
#endif
-#ifdef _LARGEFILE64_SOURCE
+#ifdef _GNU_SOURCE
+int versionsort(const struct dirent **, const struct dirent **);
+#endif
+
+#if defined(_LARGEFILE64_SOURCE) || defined(_GNU_SOURCE)
#define dirent64 dirent
#define readdir64 readdir
#define readdir64_r readdir_r
#define scandir64 scandir
#define alphasort64 alphasort
+#define versionsort64 versionsort
#define off64_t off_t
#define ino64_t ino_t
#endif