Merge from trunk.
[bpt/emacs.git] / nt / inc / unistd.h
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c911543b 1/* Fake unistd.h: config.h already provides most of the relevant things. */
ab5796a9 2
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3#ifndef _UNISTD_H
4#define _UNISTD_H
5
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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
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11/* Provide prototypes of library functions that are emulated on w32
12 and whose prototypes are usually found in unistd.h on POSIX
4f3f021d 13 platforms. */
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14extern ssize_t readlink (const char *, char *, size_t);
15extern int symlink (char const *, char const *);
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16extern int setpgid (pid_t, pid_t);
17extern pid_t getpgrp (void);
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18extern pid_t setsid (void);
19extern pid_t tcgetpgrp (int);
0f7bb05d 20
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21extern int faccessat (int, char const *, int, int);
22
23/* These are normally on fcntl.h, but we don't override that header. */
24/* Use values compatible with gnulib, as there's no reason to differ. */
25#define AT_FDCWD (-3041965)
26#define AT_EACCESS 4
27#define AT_SYMLINK_NOFOLLOW 4096
28
49cdacda 29#define O_NOCTTY 0
49cdacda 30
0f7bb05d 31#endif /* _UNISTD_H */