-#ifndef S_IFMT
-/* File type */
-#define S_IFMT 0170000 /* [XSI] type of file mask */
-#define S_IFIFO 0010000 /* [XSI] named pipe (fifo) */
-#define S_IFCHR 0020000 /* [XSI] character special */
-#define S_IFDIR 0040000 /* [XSI] directory */
-#define S_IFBLK 0060000 /* [XSI] block special */
-#define S_IFREG 0100000 /* [XSI] regular */
-#define S_IFLNK 0120000 /* [XSI] symbolic link */
-#define S_IFSOCK 0140000 /* [XSI] socket */
-#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
-#define S_IFWHT 0160000 /* whiteout */
-#define S_IFXATTR 0200000 /* extended attribute */
-#endif
-
-/* File mode */
-/* Read, write, execute/search by owner */
-#define S_IRWXU 0000700 /* [XSI] RWX mask for owner */
-#define S_IRUSR 0000400 /* [XSI] R for owner */
-#define S_IWUSR 0000200 /* [XSI] W for owner */
-#define S_IXUSR 0000100 /* [XSI] X for owner */
-/* Read, write, execute/search by group */
-#define S_IRWXG 0000070 /* [XSI] RWX mask for group */
-#define S_IRGRP 0000040 /* [XSI] R for group */
-#define S_IWGRP 0000020 /* [XSI] W for group */
-#define S_IXGRP 0000010 /* [XSI] X for group */
-/* Read, write, execute/search by others */
-#define S_IRWXO 0000007 /* [XSI] RWX mask for other */
-#define S_IROTH 0000004 /* [XSI] R for other */
-#define S_IWOTH 0000002 /* [XSI] W for other */
-#define S_IXOTH 0000001 /* [XSI] X for other */
-
-#define S_ISUID 0004000 /* [XSI] set user id on execution */
-#define S_ISGID 0002000 /* [XSI] set group id on execution */
-#define S_ISVTX 0001000 /* [XSI] directory restrcted delete */
-
-#if !defined(_POSIX_C_SOURCE) || defined(_DARWIN_C_SOURCE)
-#define S_ISTXT S_ISVTX /* sticky bit: not supported */
-#define S_IREAD S_IRUSR /* backward compatability */
-#define S_IWRITE S_IWUSR /* backward compatability */
-#define S_IEXEC S_IXUSR /* backward compatability */
-#endif
-#endif /* !S_IFMT */