add _DIRENT_HAVE_D_* macros to dirent.h

include/dirent.h

@@ -17,6 +17,10 @@ extern "C" {
 
 typedef struct __dirstream DIR;
 
+#define _DIRENT_HAVE_D_RECLEN
+#define _DIRENT_HAVE_D_OFF
+#define _DIRENT_HAVE_D_TYPE
+
 struct dirent {
 	ino_t d_ino;
 	off_t d_off;