code.delx.au - gnu-emacs/blob - nt/inc/unistd.h

   1 /* Fake unistd.h: config.h already provides most of the relevant things. */
   2
   3 #ifndef _UNISTD_H
   4 #define _UNISTD_H
   5
   6 /* On Microsoft platforms, <stdlib.h> declares 'environ'; on POSIX
   7    platforms, <unistd.h> does.  Every file in Emacs that includes
   8    <unistd.h> also includes <stdlib.h>, so there's no need to declare
   9    'environ' here.  */
  10
  11 /* Provide prototypes of library functions that are emulated on w32
  12    and whose prototypes are usually found in unistd.h on POSIX
  13    platforms.  */
  14 extern ssize_t readlink (const char *, char *, size_t);
  15 extern ssize_t readlinkat (int, const char *, char *, size_t);
  16 extern int symlink (char const *, char const *);
  17 extern int setpgid (pid_t, pid_t);
  18 extern pid_t getpgrp (void);
  19 extern pid_t setsid (void);
  20 extern pid_t tcgetpgrp (int);
  21
  22 extern int faccessat (int, char const *, int, int);
  23
  24 /* These are normally on fcntl.h, but we don't override that header.  */
  25 /* Use values compatible with gnulib, as there's no reason to differ.  */
  26 #define AT_FDCWD (-3041965)
  27 #define AT_EACCESS 4
  28 #define AT_SYMLINK_NOFOLLOW 4096
  29
  30 #define O_NOCTTY 0
  31 #define O_IGNORE_CTTY 0
  32
  33 /* This is normally on stdlib.h, but we don't override that header.  */
  34 extern int unsetenv (const char *);
  35
  36 #endif  /* _UNISTD_H */