--- /dev/null
+/* We need to define:
+#define _FILE_OFFSET_BITS 64
+#define _LARGEFILE64_SOURCE 1
+*/
+
+#include <assert.h>
+#include <stddef.h>
+#include <sys/stat.h>
+
+int
+main (void)
+{
+ /* With _FILE_OFFSET_BITS=64 struct stat and struct stat64 should
+ be identical. */
+ assert (sizeof (struct stat)
+ == sizeof (struct stat64));
+ assert (offsetof (struct stat, st_dev)
+ == offsetof (struct stat64, st_dev));
+ assert (offsetof (struct stat, st_ino)
+ == offsetof (struct stat64, st_ino));
+ assert (offsetof (struct stat, st_mode)
+ == offsetof (struct stat64, st_mode));
+ assert (offsetof (struct stat, st_nlink)
+ == offsetof (struct stat64, st_nlink));
+ assert (offsetof (struct stat, st_uid)
+ == offsetof (struct stat64, st_uid));
+ assert (offsetof (struct stat, st_gid)
+ == offsetof (struct stat64, st_gid));
+ assert (offsetof (struct stat, st_rdev)
+ == offsetof (struct stat64, st_rdev));
+ assert (offsetof (struct stat, st_size)
+ == offsetof (struct stat64, st_size));
+ assert (offsetof (struct stat, st_atime)
+ == offsetof (struct stat64, st_atime));
+ assert (offsetof (struct stat, st_mtime)
+ == offsetof (struct stat64, st_mtime));
+ assert (offsetof (struct stat, st_ctime)
+ == offsetof (struct stat64, st_ctime));
+ assert (offsetof (struct stat, st_blksize)
+ == offsetof (struct stat64, st_blksize));
+ assert (offsetof (struct stat, st_blocks)
+ == offsetof (struct stat64, st_blocks));
+#if 0
+ /* Some systems have st_fstype but not all. Don't check it for now. */
+ assert (offsetof (struct stat, st_fstype)
+ == offsetof (struct stat64, st_fstype));
+#endif
+ return 0;
+}