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Fix newline preservation in @example with lines beginning with @
[bpt/guile.git] / lib / unistd.in.h
CommitLineData
9b36a80c 1/* Substitute for and wrapper around <unistd.h>.
5e69ceb7 2 Copyright (C) 2003-2014 Free Software Foundation, Inc.
9b36a80c
LC		 3
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU Lesser General Public License as published by
6 the Free Software Foundation; either version 2, or (at your option)
7 any later version.
8
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU Lesser General Public License for more details.
13
14 You should have received a copy of the GNU Lesser General Public License
005de2e8 15 along with this program; if not, see <http://www.gnu.org/licenses/>. */
9b36a80c 16
af07e104
AW		 17#ifndef _@GUARD_PREFIX@_UNISTD_H
18
9b36a80c
LC		 19#if __GNUC__ >= 3
20@PRAGMA_SYSTEM_HEADER@
21#endif
0f00f2c3 22@PRAGMA_COLUMNS@
9b36a80c
LC		 23
24/* The include_next requires a split double-inclusion guard. */
25#if @HAVE_UNISTD_H@
26# @INCLUDE_NEXT@ @NEXT_UNISTD_H@
27#endif
28
a927b6c1
LC		 29/* Get all possible declarations of gethostname(). */
30#if @GNULIB_GETHOSTNAME@ && @UNISTD_H_HAVE_WINSOCK2_H@ \
31 && !defined _GL_INCLUDING_WINSOCK2_H
32# define _GL_INCLUDING_WINSOCK2_H
33# include <winsock2.h>
34# undef _GL_INCLUDING_WINSOCK2_H
35#endif
36
3d458a81
AW		 37#if !defined _@GUARD_PREFIX@_UNISTD_H && !defined _GL_INCLUDING_WINSOCK2_H
38#define _@GUARD_PREFIX@_UNISTD_H
9b36a80c 39
8912421c
LC		 40/* NetBSD 5.0 mis-defines NULL. Also get size_t. */
41#include <stddef.h>
42
f240aacb 43/* mingw doesn't define the SEEK_* or *_FILENO macros in <unistd.h>. */
61cd9dc9
LC		 44/* Cygwin 1.7.1 declares symlinkat in <stdio.h>, not in <unistd.h>. */
45/* But avoid namespace pollution on glibc systems. */
46#if (!(defined SEEK_CUR && defined SEEK_END && defined SEEK_SET) \
0f00f2c3
LC		 47 || ((@GNULIB_SYMLINKAT@ || defined GNULIB_POSIXCHECK) \
48 && defined __CYGWIN__)) \
61cd9dc9 49 && ! defined __GLIBC__
9b36a80c
LC		 50# include <stdio.h>
51#endif
52
61cd9dc9
LC		 53/* Cygwin 1.7.1 declares unlinkat in <fcntl.h>, not in <unistd.h>. */
54/* But avoid namespace pollution on glibc systems. */
0f00f2c3
LC		 55#if (@GNULIB_UNLINKAT@ || defined GNULIB_POSIXCHECK) && defined __CYGWIN__ \
56 && ! defined __GLIBC__
61cd9dc9
LC		 57# include <fcntl.h>
58#endif
59
9b36a80c 60/* mingw fails to declare _exit in <unistd.h>. */
35428fb6
LC		 61/* mingw, MSVC, BeOS, Haiku declare environ in <stdlib.h>, not in
62 <unistd.h>. */
61cd9dc9 63/* Solaris declares getcwd not only in <unistd.h> but also in <stdlib.h>. */
5e69ceb7
MW		 64/* OSF Tru64 Unix cannot see gnulib rpl_strtod when system <stdlib.h> is
65 included here. */
61cd9dc9 66/* But avoid namespace pollution on glibc systems. */
5e69ceb7 67#if !defined __GLIBC__ && !defined __osf__
af07e104 68# define __need_system_stdlib_h
61cd9dc9 69# include <stdlib.h>
af07e104 70# undef __need_system_stdlib_h
61cd9dc9 71#endif
9b36a80c 72
35428fb6 73/* Native Windows platforms declare chdir, getcwd, rmdir in
f0007cad
LC		 74 <io.h> and/or <direct.h>, not in <unistd.h>.
75 They also declare access(), chmod(), close(), dup(), dup2(), isatty(),
76 lseek(), read(), unlink(), write() in <io.h>. */
35428fb6
LC		 77#if ((@GNULIB_CHDIR@ || @GNULIB_GETCWD@ || @GNULIB_RMDIR@ \
78 || defined GNULIB_POSIXCHECK) \
61cd9dc9 79 && ((defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__))
35428fb6
LC		 80# include <io.h> /* mingw32, mingw64 */
81# include <direct.h> /* mingw64, MSVC 9 */
f0007cad
LC		 82#elif (@GNULIB_CLOSE@ || @GNULIB_DUP@ || @GNULIB_DUP2@ || @GNULIB_ISATTY@ \
83 || @GNULIB_LSEEK@ || @GNULIB_READ@ || @GNULIB_UNLINK@ || @GNULIB_WRITE@ \
84 || defined GNULIB_POSIXCHECK) \
85 && ((defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__)
86# include <io.h>
61cd9dc9
LC		 87#endif
88
49114fd4
LC		 89/* AIX and OSF/1 5.1 declare getdomainname in <netdb.h>, not in <unistd.h>.
90 NonStop Kernel declares gethostname in <netdb.h>, not in <unistd.h>. */
0f00f2c3 91/* But avoid namespace pollution on glibc systems. */
49114fd4
LC		 92#if ((@GNULIB_GETDOMAINNAME@ && (defined _AIX || defined __osf__)) \
93 || (@GNULIB_GETHOSTNAME@ && defined __TANDEM)) \
0f00f2c3
LC		 94 && !defined __GLIBC__
95# include <netdb.h>
96#endif
97
005de2e8
LC		 98/* MSVC defines off_t in <sys/types.h>.
99 May also define off_t to a 64-bit type on native Windows. */
100#if !@HAVE_UNISTD_H@ || @WINDOWS_64_BIT_OFF_T@
35428fb6
LC		 101/* Get off_t. */
102# include <sys/types.h>
103#endif
104
dd7d0148
LC		 105#if (@GNULIB_READ@ || @GNULIB_WRITE@ \
106 || @GNULIB_READLINK@ || @GNULIB_READLINKAT@ \
a927b6c1 107 || @GNULIB_PREAD@ || @GNULIB_PWRITE@ || defined GNULIB_POSIXCHECK)
9b36a80c
LC		 108/* Get ssize_t. */
109# include <sys/types.h>
110#endif
111
61cd9dc9
LC		 112/* Get getopt(), optarg, optind, opterr, optopt.
113 But avoid namespace pollution on glibc systems. */
114#if @GNULIB_UNISTD_H_GETOPT@ && !defined __GLIBC__ && !defined _GL_SYSTEM_GETOPT
af07e104 115# define __need_getopt
8912421c
LC		 116# include <getopt.h>
117#endif
118
5e69ceb7
MW		 119#ifndef _GL_INLINE_HEADER_BEGIN
120 #error "Please include config.h first."
121#endif
af07e104
AW		 122_GL_INLINE_HEADER_BEGIN
123#ifndef _GL_UNISTD_INLINE
124# define _GL_UNISTD_INLINE _GL_INLINE
125#endif
126
a927b6c1
LC		 127/* The definitions of _GL_FUNCDECL_RPL etc. are copied here. */
128
129/* The definition of _GL_ARG_NONNULL is copied here. */
130
131/* The definition of _GL_WARN_ON_USE is copied here. */
132
133
35428fb6
LC		 134/* Hide some function declarations from <winsock2.h>. */
135
136#if @GNULIB_GETHOSTNAME@ && @UNISTD_H_HAVE_WINSOCK2_H@
137# if !defined _@GUARD_PREFIX@_SYS_SOCKET_H
138# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
139# undef socket
140# define socket socket_used_without_including_sys_socket_h
141# undef connect
142# define connect connect_used_without_including_sys_socket_h
143# undef accept
144# define accept accept_used_without_including_sys_socket_h
145# undef bind
146# define bind bind_used_without_including_sys_socket_h
147# undef getpeername
148# define getpeername getpeername_used_without_including_sys_socket_h
149# undef getsockname
150# define getsockname getsockname_used_without_including_sys_socket_h
151# undef getsockopt
152# define getsockopt getsockopt_used_without_including_sys_socket_h
153# undef listen
154# define listen listen_used_without_including_sys_socket_h
155# undef recv
156# define recv recv_used_without_including_sys_socket_h
157# undef send
158# define send send_used_without_including_sys_socket_h
159# undef recvfrom
160# define recvfrom recvfrom_used_without_including_sys_socket_h
161# undef sendto
162# define sendto sendto_used_without_including_sys_socket_h
163# undef setsockopt
164# define setsockopt setsockopt_used_without_including_sys_socket_h
165# undef shutdown
166# define shutdown shutdown_used_without_including_sys_socket_h
167# else
168 _GL_WARN_ON_USE (socket,
169 "socket() used without including <sys/socket.h>");
170 _GL_WARN_ON_USE (connect,
171 "connect() used without including <sys/socket.h>");
172 _GL_WARN_ON_USE (accept,
173 "accept() used without including <sys/socket.h>");
174 _GL_WARN_ON_USE (bind,
175 "bind() used without including <sys/socket.h>");
176 _GL_WARN_ON_USE (getpeername,
177 "getpeername() used without including <sys/socket.h>");
178 _GL_WARN_ON_USE (getsockname,
179 "getsockname() used without including <sys/socket.h>");
180 _GL_WARN_ON_USE (getsockopt,
181 "getsockopt() used without including <sys/socket.h>");
182 _GL_WARN_ON_USE (listen,
183 "listen() used without including <sys/socket.h>");
184 _GL_WARN_ON_USE (recv,
185 "recv() used without including <sys/socket.h>");
186 _GL_WARN_ON_USE (send,
187 "send() used without including <sys/socket.h>");
188 _GL_WARN_ON_USE (recvfrom,
189 "recvfrom() used without including <sys/socket.h>");
190 _GL_WARN_ON_USE (sendto,
191 "sendto() used without including <sys/socket.h>");
192 _GL_WARN_ON_USE (setsockopt,
193 "setsockopt() used without including <sys/socket.h>");
194 _GL_WARN_ON_USE (shutdown,
195 "shutdown() used without including <sys/socket.h>");
9b36a80c 196# endif
35428fb6
LC		 197# endif
198# if !defined _@GUARD_PREFIX@_SYS_SELECT_H
199# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
200# undef select
201# define select select_used_without_including_sys_select_h
202# else
203 _GL_WARN_ON_USE (select,
204 "select() used without including <sys/select.h>");
9b36a80c
LC		 205# endif
206# endif
207#endif
208
9b36a80c 209
f240aacb
LC		 210/* OS/2 EMX lacks these macros. */
211#ifndef STDIN_FILENO
212# define STDIN_FILENO 0
213#endif
214#ifndef STDOUT_FILENO
215# define STDOUT_FILENO 1
216#endif
217#ifndef STDERR_FILENO
218# define STDERR_FILENO 2
219#endif
220
8912421c
LC		 221/* Ensure *_OK macros exist. */
222#ifndef F_OK
223# define F_OK 0
224# define X_OK 1
225# define W_OK 2
226# define R_OK 4
227#endif
228
229
9b36a80c
LC		 230/* Declare overridden functions. */
231
f4c79b3c
LC		 232
233#if defined GNULIB_POSIXCHECK
234/* The access() function is a security risk. */
235_GL_WARN_ON_USE (access, "the access function is a security risk - "
236 "use the gnulib module faccessat instead");
9b36a80c
LC		 237#endif
238
239
35428fb6
LC		 240#if @GNULIB_CHDIR@
241_GL_CXXALIAS_SYS (chdir, int, (const char *file) _GL_ARG_NONNULL ((1)));
242_GL_CXXALIASWARN (chdir);
243#elif defined GNULIB_POSIXCHECK
244# undef chdir
245# if HAVE_RAW_DECL_CHDIR
246_GL_WARN_ON_USE (chown, "chdir is not always in <unistd.h> - "
247 "use gnulib module chdir for portability");
248# endif
249#endif
250
251
9b36a80c 252#if @GNULIB_CHOWN@
9b36a80c
LC		 253/* Change the owner of FILE to UID (if UID is not -1) and the group of FILE
254 to GID (if GID is not -1). Follow symbolic links.
255 Return 0 if successful, otherwise -1 and errno set.
35428fb6
LC		 256 See the POSIX:2008 specification
257 <http://pubs.opengroup.org/onlinepubs/9699919799/functions/chown.html. */
f4c79b3c
LC		 258# if @REPLACE_CHOWN@
259# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
260# undef chown
261# define chown rpl_chown
262# endif
263_GL_FUNCDECL_RPL (chown, int, (const char *file, uid_t uid, gid_t gid)
264 _GL_ARG_NONNULL ((1)));
265_GL_CXXALIAS_RPL (chown, int, (const char *file, uid_t uid, gid_t gid));
266# else
267# if !@HAVE_CHOWN@
268_GL_FUNCDECL_SYS (chown, int, (const char *file, uid_t uid, gid_t gid)
269 _GL_ARG_NONNULL ((1)));
270# endif
271_GL_CXXALIAS_SYS (chown, int, (const char *file, uid_t uid, gid_t gid));
9b36a80c 272# endif
f4c79b3c 273_GL_CXXALIASWARN (chown);
9b36a80c
LC		 274#elif defined GNULIB_POSIXCHECK
275# undef chown
61cd9dc9
LC		 276# if HAVE_RAW_DECL_CHOWN
277_GL_WARN_ON_USE (chown, "chown fails to follow symlinks on some systems and "
278 "doesn't treat a uid or gid of -1 on some systems - "
279 "use gnulib module chown for portability");
280# endif
9b36a80c
LC		 281#endif
282
283
284#if @GNULIB_CLOSE@
9b36a80c
LC		 285# if @REPLACE_CLOSE@
286/* Automatically included by modules that need a replacement for close. */
f4c79b3c
LC		 287# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
288# undef close
289# define close rpl_close
290# endif
291_GL_FUNCDECL_RPL (close, int, (int fd));
292_GL_CXXALIAS_RPL (close, int, (int fd));
293# else
294_GL_CXXALIAS_SYS (close, int, (int fd));
9b36a80c 295# endif
f4c79b3c 296_GL_CXXALIASWARN (close);
8912421c 297#elif @UNISTD_H_HAVE_WINSOCK2_H_AND_USE_SOCKETS@
9b36a80c
LC		 298# undef close
299# define close close_used_without_requesting_gnulib_module_close
300#elif defined GNULIB_POSIXCHECK
301# undef close
61cd9dc9
LC		 302/* Assume close is always declared. */
303_GL_WARN_ON_USE (close, "close does not portably work on sockets - "
304 "use gnulib module close for portability");
9b36a80c
LC		 305#endif
306
307
35428fb6
LC		 308#if @GNULIB_DUP@
309# if @REPLACE_DUP@
310# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
311# define dup rpl_dup
312# endif
f4c79b3c
LC		 313_GL_FUNCDECL_RPL (dup, int, (int oldfd));
314_GL_CXXALIAS_RPL (dup, int, (int oldfd));
35428fb6 315# else
f4c79b3c 316_GL_CXXALIAS_SYS (dup, int, (int oldfd));
35428fb6 317# endif
f4c79b3c 318_GL_CXXALIASWARN (dup);
35428fb6
LC		 319#elif defined GNULIB_POSIXCHECK
320# undef dup
321# if HAVE_RAW_DECL_DUP
322_GL_WARN_ON_USE (dup, "dup is unportable - "
323 "use gnulib module dup for portability");
324# endif
325#endif
8912421c
LC		 326
327
9b36a80c 328#if @GNULIB_DUP2@
9b36a80c
LC		 329/* Copy the file descriptor OLDFD into file descriptor NEWFD. Do nothing if
330 NEWFD = OLDFD, otherwise close NEWFD first if it is open.
25361e4b 331 Return newfd if successful, otherwise -1 and errno set.
35428fb6
LC		 332 See the POSIX:2008 specification
333 <http://pubs.opengroup.org/onlinepubs/9699919799/functions/dup2.html>. */
f4c79b3c
LC		 334# if @REPLACE_DUP2@
335# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
336# define dup2 rpl_dup2
337# endif
338_GL_FUNCDECL_RPL (dup2, int, (int oldfd, int newfd));
339_GL_CXXALIAS_RPL (dup2, int, (int oldfd, int newfd));
340# else
341# if !@HAVE_DUP2@
342_GL_FUNCDECL_SYS (dup2, int, (int oldfd, int newfd));
343# endif
344_GL_CXXALIAS_SYS (dup2, int, (int oldfd, int newfd));
9b36a80c 345# endif
f4c79b3c 346_GL_CXXALIASWARN (dup2);
9b36a80c
LC		 347#elif defined GNULIB_POSIXCHECK
348# undef dup2
61cd9dc9
LC		 349# if HAVE_RAW_DECL_DUP2
350_GL_WARN_ON_USE (dup2, "dup2 is unportable - "
351 "use gnulib module dup2 for portability");
352# endif
9b36a80c
LC		 353#endif
354
355
8912421c
LC		 356#if @GNULIB_DUP3@
357/* Copy the file descriptor OLDFD into file descriptor NEWFD, with the
358 specified flags.
359 The flags are a bitmask, possibly including O_CLOEXEC (defined in <fcntl.h>)
360 and O_TEXT, O_BINARY (defined in "binary-io.h").
361 Close NEWFD first if it is open.
362 Return newfd if successful, otherwise -1 and errno set.
363 See the Linux man page at
364 <http://www.kernel.org/doc/man-pages/online/pages/man2/dup3.2.html>. */
365# if @HAVE_DUP3@
f4c79b3c
LC		 366# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
367# define dup3 rpl_dup3
368# endif
369_GL_FUNCDECL_RPL (dup3, int, (int oldfd, int newfd, int flags));
370_GL_CXXALIAS_RPL (dup3, int, (int oldfd, int newfd, int flags));
371# else
372_GL_FUNCDECL_SYS (dup3, int, (int oldfd, int newfd, int flags));
373_GL_CXXALIAS_SYS (dup3, int, (int oldfd, int newfd, int flags));
8912421c 374# endif
f4c79b3c 375_GL_CXXALIASWARN (dup3);
8912421c
LC		 376#elif defined GNULIB_POSIXCHECK
377# undef dup3
61cd9dc9
LC		 378# if HAVE_RAW_DECL_DUP3
379_GL_WARN_ON_USE (dup3, "dup3 is unportable - "
380 "use gnulib module dup3 for portability");
381# endif
8912421c
LC		 382#endif
383
384
9b36a80c
LC		 385#if @GNULIB_ENVIRON@
386# if !@HAVE_DECL_ENVIRON@
387/* Set of environment variables and values. An array of strings of the form
388 "VARIABLE=VALUE", terminated with a NULL. */
389# if defined __APPLE__ && defined __MACH__
390# include <crt_externs.h>
391# define environ (*_NSGetEnviron ())
392# else
f4c79b3c
LC		 393# ifdef __cplusplus
394extern "C" {
395# endif
9b36a80c 396extern char **environ;
f4c79b3c
LC		 397# ifdef __cplusplus
398}
399# endif
9b36a80c
LC		 400# endif
401# endif
402#elif defined GNULIB_POSIXCHECK
61cd9dc9 403# if HAVE_RAW_DECL_ENVIRON
af07e104 404_GL_UNISTD_INLINE char ***
61cd9dc9
LC		 405rpl_environ (void)
406{
407 return &environ;
408}
409_GL_WARN_ON_USE (rpl_environ, "environ is unportable - "
410 "use gnulib module environ for portability");
411# undef environ
412# define environ (*rpl_environ ())
413# endif
9b36a80c
LC		 414#endif
415
416
417#if @GNULIB_EUIDACCESS@
8912421c 418/* Like access(), except that it uses the effective user id and group id of
9b36a80c 419 the current process. */
f4c79b3c
LC		 420# if !@HAVE_EUIDACCESS@
421_GL_FUNCDECL_SYS (euidaccess, int, (const char *filename, int mode)
422 _GL_ARG_NONNULL ((1)));
423# endif
424_GL_CXXALIAS_SYS (euidaccess, int, (const char *filename, int mode));
425_GL_CXXALIASWARN (euidaccess);
426# if defined GNULIB_POSIXCHECK
427/* Like access(), this function is a security risk. */
428_GL_WARN_ON_USE (euidaccess, "the euidaccess function is a security risk - "
429 "use the gnulib module faccessat instead");
9b36a80c
LC		 430# endif
431#elif defined GNULIB_POSIXCHECK
432# undef euidaccess
61cd9dc9
LC		 433# if HAVE_RAW_DECL_EUIDACCESS
434_GL_WARN_ON_USE (euidaccess, "euidaccess is unportable - "
435 "use gnulib module euidaccess for portability");
436# endif
9b36a80c
LC		 437#endif
438
439
8912421c
LC		 440#if @GNULIB_FACCESSAT@
441# if !@HAVE_FACCESSAT@
f4c79b3c
LC		 442_GL_FUNCDECL_SYS (faccessat, int,
443 (int fd, char const *file, int mode, int flag)
444 _GL_ARG_NONNULL ((2)));
8912421c 445# endif
f4c79b3c
LC		 446_GL_CXXALIAS_SYS (faccessat, int,
447 (int fd, char const *file, int mode, int flag));
448_GL_CXXALIASWARN (faccessat);
8912421c
LC		 449#elif defined GNULIB_POSIXCHECK
450# undef faccessat
61cd9dc9
LC		 451# if HAVE_RAW_DECL_FACCESSAT
452_GL_WARN_ON_USE (faccessat, "faccessat is not portable - "
453 "use gnulib module faccessat for portability");
454# endif
8912421c
LC		 455#endif
456
457
9b36a80c 458#if @GNULIB_FCHDIR@
9b36a80c
LC		 459/* Change the process' current working directory to the directory on which
460 the given file descriptor is open.
461 Return 0 if successful, otherwise -1 and errno set.
35428fb6
LC		 462 See the POSIX:2008 specification
463 <http://pubs.opengroup.org/onlinepubs/9699919799/functions/fchdir.html>. */
a927b6c1
LC		 464# if ! @HAVE_FCHDIR@
465_GL_FUNCDECL_SYS (fchdir, int, (int /*fd*/));
9b36a80c 466
8912421c 467/* Gnulib internal hooks needed to maintain the fchdir metadata. */
f4c79b3c 468_GL_EXTERN_C int _gl_register_fd (int fd, const char *filename)
1cd4fffc 469 _GL_ARG_NONNULL ((2));
f4c79b3c
LC		 470_GL_EXTERN_C void _gl_unregister_fd (int fd);
471_GL_EXTERN_C int _gl_register_dup (int oldfd, int newfd);
472_GL_EXTERN_C const char *_gl_directory_name (int fd);
9b36a80c 473
ab4d62ad
LC		 474# else
475# if !@HAVE_DECL_FCHDIR@
476_GL_FUNCDECL_SYS (fchdir, int, (int /*fd*/));
477# endif
9b36a80c 478# endif
a927b6c1 479_GL_CXXALIAS_SYS (fchdir, int, (int /*fd*/));
f4c79b3c 480_GL_CXXALIASWARN (fchdir);
9b36a80c
LC		 481#elif defined GNULIB_POSIXCHECK
482# undef fchdir
61cd9dc9
LC		 483# if HAVE_RAW_DECL_FCHDIR
484_GL_WARN_ON_USE (fchdir, "fchdir is unportable - "
485 "use gnulib module fchdir for portability");
486# endif
9b36a80c
LC		 487#endif
488
489
8912421c
LC		 490#if @GNULIB_FCHOWNAT@
491# if @REPLACE_FCHOWNAT@
f4c79b3c
LC		 492# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
493# undef fchownat
494# define fchownat rpl_fchownat
495# endif
496_GL_FUNCDECL_RPL (fchownat, int, (int fd, char const *file,
497 uid_t owner, gid_t group, int flag)
498 _GL_ARG_NONNULL ((2)));
499_GL_CXXALIAS_RPL (fchownat, int, (int fd, char const *file,
500 uid_t owner, gid_t group, int flag));
501# else
502# if !@HAVE_FCHOWNAT@
503_GL_FUNCDECL_SYS (fchownat, int, (int fd, char const *file,
504 uid_t owner, gid_t group, int flag)
505 _GL_ARG_NONNULL ((2)));
506# endif
507_GL_CXXALIAS_SYS (fchownat, int, (int fd, char const *file,
508 uid_t owner, gid_t group, int flag));
8912421c 509# endif
f4c79b3c 510_GL_CXXALIASWARN (fchownat);
8912421c
LC		 511#elif defined GNULIB_POSIXCHECK
512# undef fchownat
61cd9dc9
LC		 513# if HAVE_RAW_DECL_FCHOWNAT
514_GL_WARN_ON_USE (fchownat, "fchownat is not portable - "
515 "use gnulib module openat for portability");
516# endif
8912421c
LC		 517#endif
518
519
35428fb6 520#if @GNULIB_FDATASYNC@
9b36a80c
LC		 521/* Synchronize changes to a file.
522 Return 0 if successful, otherwise -1 and errno set.
35428fb6
LC		 523 See POSIX:2008 specification
524 <http://pubs.opengroup.org/onlinepubs/9699919799/functions/fdatasync.html>. */
525# if !@HAVE_FDATASYNC@ || !@HAVE_DECL_FDATASYNC@
526_GL_FUNCDECL_SYS (fdatasync, int, (int fd));
527# endif
528_GL_CXXALIAS_SYS (fdatasync, int, (int fd));
529_GL_CXXALIASWARN (fdatasync);
530#elif defined GNULIB_POSIXCHECK
531# undef fdatasync
532# if HAVE_RAW_DECL_FDATASYNC
533_GL_WARN_ON_USE (fdatasync, "fdatasync is unportable - "
534 "use gnulib module fdatasync for portability");
535# endif
536#endif
537
538
539#if @GNULIB_FSYNC@
540/* Synchronize changes, including metadata, to a file.
541 Return 0 if successful, otherwise -1 and errno set.
542 See POSIX:2008 specification
543 <http://pubs.opengroup.org/onlinepubs/9699919799/functions/fsync.html>. */
9b36a80c 544# if !@HAVE_FSYNC@
f4c79b3c 545_GL_FUNCDECL_SYS (fsync, int, (int fd));
9b36a80c 546# endif
f4c79b3c
LC		 547_GL_CXXALIAS_SYS (fsync, int, (int fd));
548_GL_CXXALIASWARN (fsync);
9b36a80c
LC		 549#elif defined GNULIB_POSIXCHECK
550# undef fsync
61cd9dc9
LC		 551# if HAVE_RAW_DECL_FSYNC
552_GL_WARN_ON_USE (fsync, "fsync is unportable - "
553 "use gnulib module fsync for portability");
554# endif
9b36a80c
LC		 555#endif
556
557
558#if @GNULIB_FTRUNCATE@
9b36a80c
LC		 559/* Change the size of the file to which FD is opened to become equal to LENGTH.
560 Return 0 if successful, otherwise -1 and errno set.
35428fb6
LC		 561 See the POSIX:2008 specification
562 <http://pubs.opengroup.org/onlinepubs/9699919799/functions/ftruncate.html>. */
005de2e8
LC		 563# if @REPLACE_FTRUNCATE@
564# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
565# undef ftruncate
566# define ftruncate rpl_ftruncate
567# endif
568_GL_FUNCDECL_RPL (ftruncate, int, (int fd, off_t length));
569_GL_CXXALIAS_RPL (ftruncate, int, (int fd, off_t length));
570# else
571# if !@HAVE_FTRUNCATE@
f4c79b3c 572_GL_FUNCDECL_SYS (ftruncate, int, (int fd, off_t length));
005de2e8 573# endif
f4c79b3c 574_GL_CXXALIAS_SYS (ftruncate, int, (int fd, off_t length));
005de2e8 575# endif
f4c79b3c 576_GL_CXXALIASWARN (ftruncate);
9b36a80c
LC		 577#elif defined GNULIB_POSIXCHECK
578# undef ftruncate
61cd9dc9
LC		 579# if HAVE_RAW_DECL_FTRUNCATE
580_GL_WARN_ON_USE (ftruncate, "ftruncate is unportable - "
581 "use gnulib module ftruncate for portability");
582# endif
9b36a80c
LC		 583#endif
584
585
586#if @GNULIB_GETCWD@
9b36a80c
LC		 587/* Get the name of the current working directory, and put it in SIZE bytes
588 of BUF.
589 Return BUF if successful, or NULL if the directory couldn't be determined
590 or SIZE was too small.
35428fb6
LC		 591 See the POSIX:2008 specification
592 <http://pubs.opengroup.org/onlinepubs/9699919799/functions/getcwd.html>.
9b36a80c
LC		 593 Additionally, the gnulib module 'getcwd' guarantees the following GNU
594 extension: If BUF is NULL, an array is allocated with 'malloc'; the array
595 is SIZE bytes long, unless SIZE == 0, in which case it is as big as
596 necessary. */
f4c79b3c
LC		 597# if @REPLACE_GETCWD@
598# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
599# define getcwd rpl_getcwd
600# endif
601_GL_FUNCDECL_RPL (getcwd, char *, (char *buf, size_t size));
602_GL_CXXALIAS_RPL (getcwd, char *, (char *buf, size_t size));
603# else
a927b6c1
LC		 604/* Need to cast, because on mingw, the second parameter is
605 int size. */
606_GL_CXXALIAS_SYS_CAST (getcwd, char *, (char *buf, size_t size));
9b36a80c 607# endif
f4c79b3c 608_GL_CXXALIASWARN (getcwd);
9b36a80c
LC		 609#elif defined GNULIB_POSIXCHECK
610# undef getcwd
61cd9dc9
LC		 611# if HAVE_RAW_DECL_GETCWD
612_GL_WARN_ON_USE (getcwd, "getcwd is unportable - "
613 "use gnulib module getcwd for portability");
614# endif
9b36a80c
LC		 615#endif
616
617
618#if @GNULIB_GETDOMAINNAME@
619/* Return the NIS domain name of the machine.
620 WARNING! The NIS domain name is unrelated to the fully qualified host name
621 of the machine. It is also unrelated to email addresses.
622 WARNING! The NIS domain name is usually the empty string or "(none)" when
623 not using NIS.
624
625 Put up to LEN bytes of the NIS domain name into NAME.
626 Null terminate it if the name is shorter than LEN.
627 If the NIS domain name is longer than LEN, set errno = EINVAL and return -1.
628 Return 0 if successful, otherwise set errno and return -1. */
0f00f2c3
LC		 629# if @REPLACE_GETDOMAINNAME@
630# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
631# undef getdomainname
632# define getdomainname rpl_getdomainname
633# endif
634_GL_FUNCDECL_RPL (getdomainname, int, (char *name, size_t len)
635 _GL_ARG_NONNULL ((1)));
636_GL_CXXALIAS_RPL (getdomainname, int, (char *name, size_t len));
637# else
638# if !@HAVE_DECL_GETDOMAINNAME@
f4c79b3c
LC		 639_GL_FUNCDECL_SYS (getdomainname, int, (char *name, size_t len)
640 _GL_ARG_NONNULL ((1)));
0f00f2c3
LC		 641# endif
642_GL_CXXALIAS_SYS (getdomainname, int, (char *name, size_t len));
9b36a80c 643# endif
f4c79b3c 644_GL_CXXALIASWARN (getdomainname);
9b36a80c
LC		 645#elif defined GNULIB_POSIXCHECK
646# undef getdomainname
61cd9dc9
LC		 647# if HAVE_RAW_DECL_GETDOMAINNAME
648_GL_WARN_ON_USE (getdomainname, "getdomainname is unportable - "
649 "use gnulib module getdomainname for portability");
650# endif
9b36a80c
LC		 651#endif
652
653
654#if @GNULIB_GETDTABLESIZE@
8912421c
LC		 655/* Return the maximum number of file descriptors in the current process.
656 In POSIX, this is same as sysconf (_SC_OPEN_MAX). */
5e69ceb7
MW		 657# if @REPLACE_GETDTABLESIZE@
658# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
659# undef getdtablesize
660# define getdtablesize rpl_getdtablesize
661# endif
662_GL_FUNCDECL_RPL (getdtablesize, int, (void));
663_GL_CXXALIAS_RPL (getdtablesize, int, (void));
664# else
665# if !@HAVE_GETDTABLESIZE@
f4c79b3c 666_GL_FUNCDECL_SYS (getdtablesize, int, (void));
5e69ceb7 667# endif
f4c79b3c 668_GL_CXXALIAS_SYS (getdtablesize, int, (void));
5e69ceb7 669# endif
f4c79b3c 670_GL_CXXALIASWARN (getdtablesize);
9b36a80c
LC		 671#elif defined GNULIB_POSIXCHECK
672# undef getdtablesize
61cd9dc9
LC		 673# if HAVE_RAW_DECL_GETDTABLESIZE
674_GL_WARN_ON_USE (getdtablesize, "getdtablesize is unportable - "
675 "use gnulib module getdtablesize for portability");
676# endif
9b36a80c
LC		 677#endif
678
679
f29ded4b 680#if @GNULIB_GETGROUPS@
f29ded4b
LC		 681/* Return the supplemental groups that the current process belongs to.
682 It is unspecified whether the effective group id is in the list.
683 If N is 0, return the group count; otherwise, N describes how many
684 entries are available in GROUPS. Return -1 and set errno if N is
685 not 0 and not large enough. Fails with ENOSYS on some systems. */
f4c79b3c
LC		 686# if @REPLACE_GETGROUPS@
687# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
688# undef getgroups
689# define getgroups rpl_getgroups
690# endif
691_GL_FUNCDECL_RPL (getgroups, int, (int n, gid_t *groups));
692_GL_CXXALIAS_RPL (getgroups, int, (int n, gid_t *groups));
693# else
694# if !@HAVE_GETGROUPS@
695_GL_FUNCDECL_SYS (getgroups, int, (int n, gid_t *groups));
696# endif
697_GL_CXXALIAS_SYS (getgroups, int, (int n, gid_t *groups));
f29ded4b 698# endif
f4c79b3c 699_GL_CXXALIASWARN (getgroups);
f29ded4b
LC		 700#elif defined GNULIB_POSIXCHECK
701# undef getgroups
61cd9dc9
LC		 702# if HAVE_RAW_DECL_GETGROUPS
703_GL_WARN_ON_USE (getgroups, "getgroups is unportable - "
704 "use gnulib module getgroups for portability");
705# endif
f29ded4b
LC		 706#endif
707
708
9b36a80c
LC		 709#if @GNULIB_GETHOSTNAME@
710/* Return the standard host name of the machine.
711 WARNING! The host name may or may not be fully qualified.
712
713 Put up to LEN bytes of the host name into NAME.
714 Null terminate it if the name is shorter than LEN.
715 If the host name is longer than LEN, set errno = EINVAL and return -1.
716 Return 0 if successful, otherwise set errno and return -1. */
717# if @UNISTD_H_HAVE_WINSOCK2_H@
f4c79b3c
LC		 718# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
719# undef gethostname
720# define gethostname rpl_gethostname
721# endif
722_GL_FUNCDECL_RPL (gethostname, int, (char *name, size_t len)
723 _GL_ARG_NONNULL ((1)));
724_GL_CXXALIAS_RPL (gethostname, int, (char *name, size_t len));
725# else
726# if !@HAVE_GETHOSTNAME@
727_GL_FUNCDECL_SYS (gethostname, int, (char *name, size_t len)
728 _GL_ARG_NONNULL ((1)));
729# endif
ab4d62ad
LC		 730/* Need to cast, because on Solaris 10 and OSF/1 5.1 systems, the second
731 parameter is
f4c79b3c
LC		 732 int len. */
733_GL_CXXALIAS_SYS_CAST (gethostname, int, (char *name, size_t len));
9b36a80c 734# endif
f4c79b3c 735_GL_CXXALIASWARN (gethostname);
9b36a80c
LC		 736#elif @UNISTD_H_HAVE_WINSOCK2_H@
737# undef gethostname
738# define gethostname gethostname_used_without_requesting_gnulib_module_gethostname
739#elif defined GNULIB_POSIXCHECK
740# undef gethostname
61cd9dc9
LC		 741# if HAVE_RAW_DECL_GETHOSTNAME
742_GL_WARN_ON_USE (gethostname, "gethostname is unportable - "
743 "use gnulib module gethostname for portability");
744# endif
745#endif
746
747
748#if @GNULIB_GETLOGIN@
749/* Returns the user's login name, or NULL if it cannot be found. Upon error,
750 returns NULL with errno set.
751
752 See <http://www.opengroup.org/susv3xsh/getlogin.html>.
753
754 Most programs don't need to use this function, because the information is
755 available through environment variables:
756 ${LOGNAME-$USER} on Unix platforms,
757 $USERNAME on native Windows platforms.
758 */
759# if !@HAVE_GETLOGIN@
f4c79b3c 760_GL_FUNCDECL_SYS (getlogin, char *, (void));
61cd9dc9 761# endif
f4c79b3c
LC		 762_GL_CXXALIAS_SYS (getlogin, char *, (void));
763_GL_CXXALIASWARN (getlogin);
61cd9dc9
LC		 764#elif defined GNULIB_POSIXCHECK
765# undef getlogin
766# if HAVE_RAW_DECL_GETLOGIN
767_GL_WARN_ON_USE (getlogin, "getlogin is unportable - "
768 "use gnulib module getlogin for portability");
769# endif
9b36a80c
LC		 770#endif
771
772
773#if @GNULIB_GETLOGIN_R@
774/* Copies the user's login name to NAME.
775 The array pointed to by NAME has room for SIZE bytes.
776
777 Returns 0 if successful. Upon error, an error number is returned, or -1 in
778 the case that the login name cannot be found but no specific error is
779 provided (this case is hopefully rare but is left open by the POSIX spec).
780
781 See <http://www.opengroup.org/susv3xsh/getlogin.html>.
61cd9dc9
LC		 782
783 Most programs don't need to use this function, because the information is
784 available through environment variables:
785 ${LOGNAME-$USER} on Unix platforms,
786 $USERNAME on native Windows platforms.
9b36a80c 787 */
49114fd4
LC		 788# if @REPLACE_GETLOGIN_R@
789# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
790# define getlogin_r rpl_getlogin_r
791# endif
792_GL_FUNCDECL_RPL (getlogin_r, int, (char *name, size_t size)
793 _GL_ARG_NONNULL ((1)));
794_GL_CXXALIAS_RPL (getlogin_r, int, (char *name, size_t size));
795# else
796# if !@HAVE_DECL_GETLOGIN_R@
f4c79b3c
LC		 797_GL_FUNCDECL_SYS (getlogin_r, int, (char *name, size_t size)
798 _GL_ARG_NONNULL ((1)));
49114fd4 799# endif
f4c79b3c
LC		 800/* Need to cast, because on Solaris 10 systems, the second argument is
801 int size. */
802_GL_CXXALIAS_SYS_CAST (getlogin_r, int, (char *name, size_t size));
49114fd4 803# endif
f4c79b3c 804_GL_CXXALIASWARN (getlogin_r);
9b36a80c
LC		 805#elif defined GNULIB_POSIXCHECK
806# undef getlogin_r
61cd9dc9
LC		 807# if HAVE_RAW_DECL_GETLOGIN_R
808_GL_WARN_ON_USE (getlogin_r, "getlogin_r is unportable - "
809 "use gnulib module getlogin_r for portability");
810# endif
9b36a80c
LC		 811#endif
812
813
814#if @GNULIB_GETPAGESIZE@
815# if @REPLACE_GETPAGESIZE@
f4c79b3c
LC		 816# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
817# define getpagesize rpl_getpagesize
9b36a80c 818# endif
f4c79b3c
LC		 819_GL_FUNCDECL_RPL (getpagesize, int, (void));
820_GL_CXXALIAS_RPL (getpagesize, int, (void));
821# else
822# if !@HAVE_GETPAGESIZE@
823# if !defined getpagesize
824/* This is for POSIX systems. */
825# if !defined _gl_getpagesize && defined _SC_PAGESIZE
826# if ! (defined __VMS && __VMS_VER < 70000000)
827# define _gl_getpagesize() sysconf (_SC_PAGESIZE)
828# endif
829# endif
9b36a80c 830/* This is for older VMS. */
f4c79b3c
LC		 831# if !defined _gl_getpagesize && defined __VMS
832# ifdef __ALPHA
833# define _gl_getpagesize() 8192
834# else
835# define _gl_getpagesize() 512
836# endif
837# endif
9b36a80c 838/* This is for BeOS. */
f4c79b3c
LC		 839# if !defined _gl_getpagesize && @HAVE_OS_H@
840# include <OS.h>
841# if defined B_PAGE_SIZE
842# define _gl_getpagesize() B_PAGE_SIZE
843# endif
844# endif
9b36a80c 845/* This is for AmigaOS4.0. */
f4c79b3c
LC		 846# if !defined _gl_getpagesize && defined __amigaos4__
847# define _gl_getpagesize() 2048
848# endif
9b36a80c 849/* This is for older Unix systems. */
f4c79b3c
LC		 850# if !defined _gl_getpagesize && @HAVE_SYS_PARAM_H@
851# include <sys/param.h>
852# ifdef EXEC_PAGESIZE
853# define _gl_getpagesize() EXEC_PAGESIZE
854# else
855# ifdef NBPG
856# ifndef CLSIZE
857# define CLSIZE 1
858# endif
859# define _gl_getpagesize() (NBPG * CLSIZE)
860# else
861# ifdef NBPC
862# define _gl_getpagesize() NBPC
863# endif
864# endif
9b36a80c 865# endif
f4c79b3c
LC		 866# endif
867# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
868# define getpagesize() _gl_getpagesize ()
9b36a80c 869# else
49114fd4 870# if !GNULIB_defined_getpagesize_function
af07e104 871_GL_UNISTD_INLINE int
f4c79b3c
LC		 872getpagesize ()
873{
874 return _gl_getpagesize ();
875}
49114fd4
LC		 876# define GNULIB_defined_getpagesize_function 1
877# endif
9b36a80c
LC		 878# endif
879# endif
880# endif
f4c79b3c
LC		 881/* Need to cast, because on Cygwin 1.5.x systems, the return type is size_t. */
882_GL_CXXALIAS_SYS_CAST (getpagesize, int, (void));
9b36a80c 883# endif
a927b6c1 884# if @HAVE_DECL_GETPAGESIZE@
f4c79b3c 885_GL_CXXALIASWARN (getpagesize);
a927b6c1 886# endif
9b36a80c
LC		 887#elif defined GNULIB_POSIXCHECK
888# undef getpagesize
61cd9dc9
LC		 889# if HAVE_RAW_DECL_GETPAGESIZE
890_GL_WARN_ON_USE (getpagesize, "getpagesize is unportable - "
891 "use gnulib module getpagesize for portability");
892# endif
9b36a80c
LC		 893#endif
894
895
896#if @GNULIB_GETUSERSHELL@
9b36a80c
LC		 897/* Return the next valid login shell on the system, or NULL when the end of
898 the list has been reached. */
a927b6c1 899# if !@HAVE_DECL_GETUSERSHELL@
f4c79b3c 900_GL_FUNCDECL_SYS (getusershell, char *, (void));
9b36a80c 901# endif
f4c79b3c
LC		 902_GL_CXXALIAS_SYS (getusershell, char *, (void));
903_GL_CXXALIASWARN (getusershell);
9b36a80c
LC		 904#elif defined GNULIB_POSIXCHECK
905# undef getusershell
61cd9dc9
LC		 906# if HAVE_RAW_DECL_GETUSERSHELL
907_GL_WARN_ON_USE (getusershell, "getusershell is unportable - "
908 "use gnulib module getusershell for portability");
909# endif
f4c79b3c
LC		 910#endif
911
912#if @GNULIB_GETUSERSHELL@
913/* Rewind to pointer that is advanced at each getusershell() call. */
a927b6c1 914# if !@HAVE_DECL_GETUSERSHELL@
f4c79b3c
LC		 915_GL_FUNCDECL_SYS (setusershell, void, (void));
916# endif
917_GL_CXXALIAS_SYS (setusershell, void, (void));
918_GL_CXXALIASWARN (setusershell);
919#elif defined GNULIB_POSIXCHECK
9b36a80c 920# undef setusershell
61cd9dc9
LC		 921# if HAVE_RAW_DECL_SETUSERSHELL
922_GL_WARN_ON_USE (setusershell, "setusershell is unportable - "
923 "use gnulib module getusershell for portability");
924# endif
f4c79b3c
LC		 925#endif
926
927#if @GNULIB_GETUSERSHELL@
928/* Free the pointer that is advanced at each getusershell() call and
929 associated resources. */
a927b6c1 930# if !@HAVE_DECL_GETUSERSHELL@
f4c79b3c
LC		 931_GL_FUNCDECL_SYS (endusershell, void, (void));
932# endif
933_GL_CXXALIAS_SYS (endusershell, void, (void));
934_GL_CXXALIASWARN (endusershell);
935#elif defined GNULIB_POSIXCHECK
9b36a80c 936# undef endusershell
61cd9dc9
LC		 937# if HAVE_RAW_DECL_ENDUSERSHELL
938_GL_WARN_ON_USE (endusershell, "endusershell is unportable - "
939 "use gnulib module getusershell for portability");
940# endif
9b36a80c
LC		 941#endif
942
943
3d458a81
AW		 944#if @GNULIB_GROUP_MEMBER@
945/* Determine whether group id is in calling user's group list. */
946# if !@HAVE_GROUP_MEMBER@
947_GL_FUNCDECL_SYS (group_member, int, (gid_t gid));
948# endif
949_GL_CXXALIAS_SYS (group_member, int, (gid_t gid));
950_GL_CXXALIASWARN (group_member);
951#elif defined GNULIB_POSIXCHECK
952# undef group_member
953# if HAVE_RAW_DECL_GROUP_MEMBER
954_GL_WARN_ON_USE (group_member, "group_member is unportable - "
955 "use gnulib module group-member for portability");
956# endif
957#endif
958
959
f0007cad
LC		 960#if @GNULIB_ISATTY@
961# if @REPLACE_ISATTY@
962# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
963# undef isatty
964# define isatty rpl_isatty
965# endif
966_GL_FUNCDECL_RPL (isatty, int, (int fd));
967_GL_CXXALIAS_RPL (isatty, int, (int fd));
968# else
969_GL_CXXALIAS_SYS (isatty, int, (int fd));
970# endif
971_GL_CXXALIASWARN (isatty);
972#elif defined GNULIB_POSIXCHECK
973# undef isatty
974# if HAVE_RAW_DECL_ISATTY
975_GL_WARN_ON_USE (isatty, "isatty has portability problems on native Windows - "
976 "use gnulib module isatty for portability");
977# endif
978#endif
979
980
9b36a80c 981#if @GNULIB_LCHOWN@
9b36a80c
LC		 982/* Change the owner of FILE to UID (if UID is not -1) and the group of FILE
983 to GID (if GID is not -1). Do not follow symbolic links.
984 Return 0 if successful, otherwise -1 and errno set.
35428fb6
LC		 985 See the POSIX:2008 specification
986 <http://pubs.opengroup.org/onlinepubs/9699919799/functions/lchown.html>. */
f4c79b3c
LC		 987# if @REPLACE_LCHOWN@
988# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
989# undef lchown
990# define lchown rpl_lchown
991# endif
992_GL_FUNCDECL_RPL (lchown, int, (char const *file, uid_t owner, gid_t group)
993 _GL_ARG_NONNULL ((1)));
994_GL_CXXALIAS_RPL (lchown, int, (char const *file, uid_t owner, gid_t group));
995# else
996# if !@HAVE_LCHOWN@
997_GL_FUNCDECL_SYS (lchown, int, (char const *file, uid_t owner, gid_t group)
998 _GL_ARG_NONNULL ((1)));
999# endif
1000_GL_CXXALIAS_SYS (lchown, int, (char const *file, uid_t owner, gid_t group));
9b36a80c 1001# endif
f4c79b3c 1002_GL_CXXALIASWARN (lchown);
9b36a80c
LC		 1003#elif defined GNULIB_POSIXCHECK
1004# undef lchown
61cd9dc9
LC		 1005# if HAVE_RAW_DECL_LCHOWN
1006_GL_WARN_ON_USE (lchown, "lchown is unportable to pre-POSIX.1-2001 systems - "
1007 "use gnulib module lchown for portability");
1008# endif
9b36a80c
LC		 1009#endif
1010
1011
f240aacb
LC		 1012#if @GNULIB_LINK@
1013/* Create a new hard link for an existing file.
1014 Return 0 if successful, otherwise -1 and errno set.
35428fb6
LC		 1015 See POSIX:2008 specification
1016 <http://pubs.opengroup.org/onlinepubs/9699919799/functions/link.html>. */
f4c79b3c
LC		 1017# if @REPLACE_LINK@
1018# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1019# define link rpl_link
1020# endif
1021_GL_FUNCDECL_RPL (link, int, (const char *path1, const char *path2)
1022 _GL_ARG_NONNULL ((1, 2)));
1023_GL_CXXALIAS_RPL (link, int, (const char *path1, const char *path2));
1024# else
1025# if !@HAVE_LINK@
1026_GL_FUNCDECL_SYS (link, int, (const char *path1, const char *path2)
1027 _GL_ARG_NONNULL ((1, 2)));
1028# endif
1029_GL_CXXALIAS_SYS (link, int, (const char *path1, const char *path2));
f240aacb 1030# endif
f4c79b3c 1031_GL_CXXALIASWARN (link);
f240aacb
LC		 1032#elif defined GNULIB_POSIXCHECK
1033# undef link
61cd9dc9
LC		 1034# if HAVE_RAW_DECL_LINK
1035_GL_WARN_ON_USE (link, "link is unportable - "
1036 "use gnulib module link for portability");
1037# endif
f240aacb
LC		 1038#endif
1039
f4c79b3c 1040
8912421c 1041#if @GNULIB_LINKAT@
8912421c
LC		 1042/* Create a new hard link for an existing file, relative to two
1043 directories. FLAG controls whether symlinks are followed.
1044 Return 0 if successful, otherwise -1 and errno set. */
f4c79b3c
LC		 1045# if @REPLACE_LINKAT@
1046# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1047# undef linkat
1048# define linkat rpl_linkat
1049# endif
1050_GL_FUNCDECL_RPL (linkat, int,
1051 (int fd1, const char *path1, int fd2, const char *path2,
1cd4fffc 1052 int flag)
f4c79b3c
LC		 1053 _GL_ARG_NONNULL ((2, 4)));
1054_GL_CXXALIAS_RPL (linkat, int,
1055 (int fd1, const char *path1, int fd2, const char *path2,
1056 int flag));
1057# else
1058# if !@HAVE_LINKAT@
1059_GL_FUNCDECL_SYS (linkat, int,
1060 (int fd1, const char *path1, int fd2, const char *path2,
1061 int flag)
1062 _GL_ARG_NONNULL ((2, 4)));
1063# endif
1064_GL_CXXALIAS_SYS (linkat, int,
1065 (int fd1, const char *path1, int fd2, const char *path2,
1066 int flag));
8912421c 1067# endif
f4c79b3c 1068_GL_CXXALIASWARN (linkat);
8912421c
LC		 1069#elif defined GNULIB_POSIXCHECK
1070# undef linkat
61cd9dc9
LC		 1071# if HAVE_RAW_DECL_LINKAT
1072_GL_WARN_ON_USE (linkat, "linkat is unportable - "
1073 "use gnulib module linkat for portability");
1074# endif
8912421c 1075#endif
f240aacb 1076
f4c79b3c 1077
9b36a80c 1078#if @GNULIB_LSEEK@
9b36a80c
LC		 1079/* Set the offset of FD relative to SEEK_SET, SEEK_CUR, or SEEK_END.
1080 Return the new offset if successful, otherwise -1 and errno set.
35428fb6
LC		 1081 See the POSIX:2008 specification
1082 <http://pubs.opengroup.org/onlinepubs/9699919799/functions/lseek.html>. */
f4c79b3c
LC		 1083# if @REPLACE_LSEEK@
1084# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1085# define lseek rpl_lseek
1086# endif
1087_GL_FUNCDECL_RPL (lseek, off_t, (int fd, off_t offset, int whence));
1088_GL_CXXALIAS_RPL (lseek, off_t, (int fd, off_t offset, int whence));
1089# else
1090_GL_CXXALIAS_SYS (lseek, off_t, (int fd, off_t offset, int whence));
9b36a80c 1091# endif
f4c79b3c 1092_GL_CXXALIASWARN (lseek);
9b36a80c
LC		 1093#elif defined GNULIB_POSIXCHECK
1094# undef lseek
61cd9dc9
LC		 1095# if HAVE_RAW_DECL_LSEEK
1096_GL_WARN_ON_USE (lseek, "lseek does not fail with ESPIPE on pipes on some "
1097 "systems - use gnulib module lseek for portability");
1098# endif
9b36a80c
LC		 1099#endif
1100
1101
ab4d62ad
LC		 1102#if @GNULIB_PIPE@
1103/* Create a pipe, defaulting to O_BINARY mode.
1104 Store the read-end as fd[0] and the write-end as fd[1].
1105 Return 0 upon success, or -1 with errno set upon failure. */
1106# if !@HAVE_PIPE@
1107_GL_FUNCDECL_SYS (pipe, int, (int fd[2]) _GL_ARG_NONNULL ((1)));
1108# endif
1109_GL_CXXALIAS_SYS (pipe, int, (int fd[2]));
1110_GL_CXXALIASWARN (pipe);
1111#elif defined GNULIB_POSIXCHECK
1112# undef pipe
1113# if HAVE_RAW_DECL_PIPE
1114_GL_WARN_ON_USE (pipe, "pipe is unportable - "
1115 "use gnulib module pipe-posix for portability");
1116# endif
1117#endif
1118
1119
8912421c
LC		 1120#if @GNULIB_PIPE2@
1121/* Create a pipe, applying the given flags when opening the read-end of the
1122 pipe and the write-end of the pipe.
1123 The flags are a bitmask, possibly including O_CLOEXEC (defined in <fcntl.h>)
1124 and O_TEXT, O_BINARY (defined in "binary-io.h").
1125 Store the read-end as fd[0] and the write-end as fd[1].
1126 Return 0 upon success, or -1 with errno set upon failure.
1127 See also the Linux man page at
1128 <http://www.kernel.org/doc/man-pages/online/pages/man2/pipe2.2.html>. */
1129# if @HAVE_PIPE2@
f4c79b3c
LC		 1130# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1131# define pipe2 rpl_pipe2
1132# endif
1133_GL_FUNCDECL_RPL (pipe2, int, (int fd[2], int flags) _GL_ARG_NONNULL ((1)));
1134_GL_CXXALIAS_RPL (pipe2, int, (int fd[2], int flags));
1135# else
1136_GL_FUNCDECL_SYS (pipe2, int, (int fd[2], int flags) _GL_ARG_NONNULL ((1)));
1137_GL_CXXALIAS_SYS (pipe2, int, (int fd[2], int flags));
8912421c 1138# endif
f4c79b3c 1139_GL_CXXALIASWARN (pipe2);
8912421c
LC		 1140#elif defined GNULIB_POSIXCHECK
1141# undef pipe2
61cd9dc9
LC		 1142# if HAVE_RAW_DECL_PIPE2
1143_GL_WARN_ON_USE (pipe2, "pipe2 is unportable - "
1144 "use gnulib module pipe2 for portability");
1145# endif
8912421c
LC		 1146#endif
1147
1148
1cd4fffc 1149#if @GNULIB_PREAD@
1cd4fffc
LC		 1150/* Read at most BUFSIZE bytes from FD into BUF, starting at OFFSET.
1151 Return the number of bytes placed into BUF if successful, otherwise
35428fb6
LC		 1152 set errno and return -1. 0 indicates EOF.
1153 See the POSIX:2008 specification
1154 <http://pubs.opengroup.org/onlinepubs/9699919799/functions/pread.html>. */
f4c79b3c
LC		 1155# if @REPLACE_PREAD@
1156# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
231c0e0e 1157# undef pread
f4c79b3c
LC		 1158# define pread rpl_pread
1159# endif
1160_GL_FUNCDECL_RPL (pread, ssize_t,
1161 (int fd, void *buf, size_t bufsize, off_t offset)
1162 _GL_ARG_NONNULL ((2)));
1163_GL_CXXALIAS_RPL (pread, ssize_t,
1164 (int fd, void *buf, size_t bufsize, off_t offset));
1165# else
1166# if !@HAVE_PREAD@
1167_GL_FUNCDECL_SYS (pread, ssize_t,
1168 (int fd, void *buf, size_t bufsize, off_t offset)
1169 _GL_ARG_NONNULL ((2)));
1170# endif
1171_GL_CXXALIAS_SYS (pread, ssize_t,
1172 (int fd, void *buf, size_t bufsize, off_t offset));
1cd4fffc 1173# endif
f4c79b3c 1174_GL_CXXALIASWARN (pread);
1cd4fffc
LC		 1175#elif defined GNULIB_POSIXCHECK
1176# undef pread
61cd9dc9
LC		 1177# if HAVE_RAW_DECL_PREAD
1178_GL_WARN_ON_USE (pread, "pread is unportable - "
1179 "use gnulib module pread for portability");
1180# endif
1cd4fffc
LC		 1181#endif
1182
1183
a927b6c1
LC		 1184#if @GNULIB_PWRITE@
1185/* Write at most BUFSIZE bytes from BUF into FD, starting at OFFSET.
1186 Return the number of bytes written if successful, otherwise
1187 set errno and return -1. 0 indicates nothing written. See the
35428fb6
LC		 1188 POSIX:2008 specification
1189 <http://pubs.opengroup.org/onlinepubs/9699919799/functions/pwrite.html>. */
a927b6c1
LC		 1190# if @REPLACE_PWRITE@
1191# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
231c0e0e 1192# undef pwrite
a927b6c1
LC		 1193# define pwrite rpl_pwrite
1194# endif
1195_GL_FUNCDECL_RPL (pwrite, ssize_t,
1196 (int fd, const void *buf, size_t bufsize, off_t offset)
1197 _GL_ARG_NONNULL ((2)));
1198_GL_CXXALIAS_RPL (pwrite, ssize_t,
1199 (int fd, const void *buf, size_t bufsize, off_t offset));
1200# else
1201# if !@HAVE_PWRITE@
1202_GL_FUNCDECL_SYS (pwrite, ssize_t,
1203 (int fd, const void *buf, size_t bufsize, off_t offset)
1204 _GL_ARG_NONNULL ((2)));
1205# endif
1206_GL_CXXALIAS_SYS (pwrite, ssize_t,
1207 (int fd, const void *buf, size_t bufsize, off_t offset));
1208# endif
1209_GL_CXXALIASWARN (pwrite);
1210#elif defined GNULIB_POSIXCHECK
1211# undef pwrite
1212# if HAVE_RAW_DECL_PWRITE
1213_GL_WARN_ON_USE (pwrite, "pwrite is unportable - "
1214 "use gnulib module pwrite for portability");
1215# endif
1216#endif
1217
1218
dd7d0148
LC		 1219#if @GNULIB_READ@
1220/* Read up to COUNT bytes from file descriptor FD into the buffer starting
35428fb6
LC		 1221 at BUF. See the POSIX:2008 specification
1222 <http://pubs.opengroup.org/onlinepubs/9699919799/functions/read.html>. */
1223# if @REPLACE_READ@
dd7d0148
LC		 1224# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1225# undef read
1226# define read rpl_read
1227# endif
1228_GL_FUNCDECL_RPL (read, ssize_t, (int fd, void *buf, size_t count)
1229 _GL_ARG_NONNULL ((2)));
1230_GL_CXXALIAS_RPL (read, ssize_t, (int fd, void *buf, size_t count));
1231# else
1232/* Need to cast, because on mingw, the third parameter is
1233 unsigned int count
1234 and the return type is 'int'. */
1235_GL_CXXALIAS_SYS_CAST (read, ssize_t, (int fd, void *buf, size_t count));
1236# endif
1237_GL_CXXALIASWARN (read);
1238#endif
1239
1240
9b36a80c
LC		 1241#if @GNULIB_READLINK@
1242/* Read the contents of the symbolic link FILE and place the first BUFSIZE
1243 bytes of it into BUF. Return the number of bytes placed into BUF if
1244 successful, otherwise -1 and errno set.
35428fb6
LC		 1245 See the POSIX:2008 specification
1246 <http://pubs.opengroup.org/onlinepubs/9699919799/functions/readlink.html>. */
f4c79b3c
LC		 1247# if @REPLACE_READLINK@
1248# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1249# define readlink rpl_readlink
1250# endif
1251_GL_FUNCDECL_RPL (readlink, ssize_t,
1252 (const char *file, char *buf, size_t bufsize)
1253 _GL_ARG_NONNULL ((1, 2)));
1254_GL_CXXALIAS_RPL (readlink, ssize_t,
1255 (const char *file, char *buf, size_t bufsize));
1256# else
1257# if !@HAVE_READLINK@
1258_GL_FUNCDECL_SYS (readlink, ssize_t,
1259 (const char *file, char *buf, size_t bufsize)
1260 _GL_ARG_NONNULL ((1, 2)));
1261# endif
1262_GL_CXXALIAS_SYS (readlink, ssize_t,
1263 (const char *file, char *buf, size_t bufsize));
9b36a80c 1264# endif
f4c79b3c 1265_GL_CXXALIASWARN (readlink);
9b36a80c
LC		 1266#elif defined GNULIB_POSIXCHECK
1267# undef readlink
61cd9dc9
LC		 1268# if HAVE_RAW_DECL_READLINK
1269_GL_WARN_ON_USE (readlink, "readlink is unportable - "
1270 "use gnulib module readlink for portability");
1271# endif
9b36a80c
LC		 1272#endif
1273
1274
8912421c
LC		 1275#if @GNULIB_READLINKAT@
1276# if !@HAVE_READLINKAT@
f4c79b3c
LC		 1277_GL_FUNCDECL_SYS (readlinkat, ssize_t,
1278 (int fd, char const *file, char *buf, size_t len)
1279 _GL_ARG_NONNULL ((2, 3)));
8912421c 1280# endif
f4c79b3c
LC		 1281_GL_CXXALIAS_SYS (readlinkat, ssize_t,
1282 (int fd, char const *file, char *buf, size_t len));
1283_GL_CXXALIASWARN (readlinkat);
8912421c
LC		 1284#elif defined GNULIB_POSIXCHECK
1285# undef readlinkat
61cd9dc9
LC		 1286# if HAVE_RAW_DECL_READLINKAT
1287_GL_WARN_ON_USE (readlinkat, "readlinkat is not portable - "
9157d901 1288 "use gnulib module readlinkat for portability");
61cd9dc9 1289# endif
8912421c
LC		 1290#endif
1291
1292
1293#if @GNULIB_RMDIR@
8912421c 1294/* Remove the directory DIR. */
f4c79b3c
LC		 1295# if @REPLACE_RMDIR@
1296# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1297# define rmdir rpl_rmdir
1298# endif
1299_GL_FUNCDECL_RPL (rmdir, int, (char const *name) _GL_ARG_NONNULL ((1)));
1300_GL_CXXALIAS_RPL (rmdir, int, (char const *name));
1301# else
1302_GL_CXXALIAS_SYS (rmdir, int, (char const *name));
8912421c 1303# endif
f4c79b3c 1304_GL_CXXALIASWARN (rmdir);
8912421c
LC		 1305#elif defined GNULIB_POSIXCHECK
1306# undef rmdir
61cd9dc9
LC		 1307# if HAVE_RAW_DECL_RMDIR
1308_GL_WARN_ON_USE (rmdir, "rmdir is unportable - "
1309 "use gnulib module rmdir for portability");
1310# endif
8912421c
LC		 1311#endif
1312
1313
7f1ea859
LC		 1314#if @GNULIB_SETHOSTNAME@
1315/* Set the host name of the machine.
1316 The host name may or may not be fully qualified.
1317
1318 Put LEN bytes of NAME into the host name.
1319 Return 0 if successful, otherwise, set errno and return -1.
1320
1321 Platforms with no ability to set the hostname return -1 and set
1322 errno = ENOSYS. */
1323# if !@HAVE_SETHOSTNAME@ || !@HAVE_DECL_SETHOSTNAME@
1324_GL_FUNCDECL_SYS (sethostname, int, (const char *name, size_t len)
1325 _GL_ARG_NONNULL ((1)));
1326# endif
005de2e8 1327/* Need to cast, because on Solaris 11 2011-10, Mac OS X 10.5, IRIX 6.5
7f1ea859
LC		 1328 and FreeBSD 6.4 the second parameter is int. On Solaris 11
1329 2011-10, the first parameter is not const. */
1330_GL_CXXALIAS_SYS_CAST (sethostname, int, (const char *name, size_t len));
1331_GL_CXXALIASWARN (sethostname);
1332#elif defined GNULIB_POSIXCHECK
1333# undef sethostname
1334# if HAVE_RAW_DECL_SETHOSTNAME
1335_GL_WARN_ON_USE (sethostname, "sethostname is unportable - "
1336 "use gnulib module sethostname for portability");
1337# endif
1338#endif
1339
1340
9b36a80c
LC		 1341#if @GNULIB_SLEEP@
1342/* Pause the execution of the current thread for N seconds.
1343 Returns the number of seconds left to sleep.
35428fb6
LC		 1344 See the POSIX:2008 specification
1345 <http://pubs.opengroup.org/onlinepubs/9699919799/functions/sleep.html>. */
f4c79b3c
LC		 1346# if @REPLACE_SLEEP@
1347# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1348# undef sleep
1349# define sleep rpl_sleep
1350# endif
1351_GL_FUNCDECL_RPL (sleep, unsigned int, (unsigned int n));
1352_GL_CXXALIAS_RPL (sleep, unsigned int, (unsigned int n));
1353# else
1354# if !@HAVE_SLEEP@
1355_GL_FUNCDECL_SYS (sleep, unsigned int, (unsigned int n));
1356# endif
1357_GL_CXXALIAS_SYS (sleep, unsigned int, (unsigned int n));
9b36a80c 1358# endif
f4c79b3c 1359_GL_CXXALIASWARN (sleep);
9b36a80c
LC		 1360#elif defined GNULIB_POSIXCHECK
1361# undef sleep
61cd9dc9
LC		 1362# if HAVE_RAW_DECL_SLEEP
1363_GL_WARN_ON_USE (sleep, "sleep is unportable - "
1364 "use gnulib module sleep for portability");
1365# endif
9b36a80c
LC		 1366#endif
1367
1368
8912421c
LC		 1369#if @GNULIB_SYMLINK@
1370# if @REPLACE_SYMLINK@
f4c79b3c
LC		 1371# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1372# undef symlink
1373# define symlink rpl_symlink
1374# endif
1375_GL_FUNCDECL_RPL (symlink, int, (char const *contents, char const *file)
1376 _GL_ARG_NONNULL ((1, 2)));
1377_GL_CXXALIAS_RPL (symlink, int, (char const *contents, char const *file));
1378# else
1379# if !@HAVE_SYMLINK@
1380_GL_FUNCDECL_SYS (symlink, int, (char const *contents, char const *file)
1381 _GL_ARG_NONNULL ((1, 2)));
1382# endif
1383_GL_CXXALIAS_SYS (symlink, int, (char const *contents, char const *file));
8912421c 1384# endif
f4c79b3c 1385_GL_CXXALIASWARN (symlink);
8912421c
LC		 1386#elif defined GNULIB_POSIXCHECK
1387# undef symlink
61cd9dc9
LC		 1388# if HAVE_RAW_DECL_SYMLINK
1389_GL_WARN_ON_USE (symlink, "symlink is not portable - "
1390 "use gnulib module symlink for portability");
1391# endif
8912421c
LC		 1392#endif
1393
1394
1395#if @GNULIB_SYMLINKAT@
1396# if !@HAVE_SYMLINKAT@
f4c79b3c
LC		 1397_GL_FUNCDECL_SYS (symlinkat, int,
1398 (char const *contents, int fd, char const *file)
1399 _GL_ARG_NONNULL ((1, 3)));
8912421c 1400# endif
f4c79b3c
LC		 1401_GL_CXXALIAS_SYS (symlinkat, int,
1402 (char const *contents, int fd, char const *file));
1403_GL_CXXALIASWARN (symlinkat);
8912421c
LC		 1404#elif defined GNULIB_POSIXCHECK
1405# undef symlinkat
61cd9dc9
LC		 1406# if HAVE_RAW_DECL_SYMLINKAT
1407_GL_WARN_ON_USE (symlinkat, "symlinkat is not portable - "
1408 "use gnulib module symlinkat for portability");
1409# endif
8912421c
LC		 1410#endif
1411
1412
a927b6c1
LC		 1413#if @GNULIB_TTYNAME_R@
1414/* Store at most BUFLEN characters of the pathname of the terminal FD is
1415 open on in BUF. Return 0 on success, otherwise an error number. */
1416# if @REPLACE_TTYNAME_R@
1417# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1418# undef ttyname_r
1419# define ttyname_r rpl_ttyname_r
1420# endif
1421_GL_FUNCDECL_RPL (ttyname_r, int,
1422 (int fd, char *buf, size_t buflen) _GL_ARG_NONNULL ((2)));
1423_GL_CXXALIAS_RPL (ttyname_r, int,
1424 (int fd, char *buf, size_t buflen));
1425# else
ab4d62ad 1426# if !@HAVE_DECL_TTYNAME_R@
a927b6c1
LC		 1427_GL_FUNCDECL_SYS (ttyname_r, int,
1428 (int fd, char *buf, size_t buflen) _GL_ARG_NONNULL ((2)));
1429# endif
1430_GL_CXXALIAS_SYS (ttyname_r, int,
1431 (int fd, char *buf, size_t buflen));
1432# endif
1433_GL_CXXALIASWARN (ttyname_r);
1434#elif defined GNULIB_POSIXCHECK
1435# undef ttyname_r
1436# if HAVE_RAW_DECL_TTYNAME_R
1437_GL_WARN_ON_USE (ttyname_r, "ttyname_r is not portable - "
1438 "use gnulib module ttyname_r for portability");
1439# endif
1440#endif
1441
1442
8912421c
LC		 1443#if @GNULIB_UNLINK@
1444# if @REPLACE_UNLINK@
f4c79b3c
LC		 1445# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1446# undef unlink
1447# define unlink rpl_unlink
1448# endif
1449_GL_FUNCDECL_RPL (unlink, int, (char const *file) _GL_ARG_NONNULL ((1)));
1450_GL_CXXALIAS_RPL (unlink, int, (char const *file));
1451# else
1452_GL_CXXALIAS_SYS (unlink, int, (char const *file));
8912421c 1453# endif
f4c79b3c 1454_GL_CXXALIASWARN (unlink);
8912421c
LC		 1455#elif defined GNULIB_POSIXCHECK
1456# undef unlink
61cd9dc9
LC		 1457# if HAVE_RAW_DECL_UNLINK
1458_GL_WARN_ON_USE (unlink, "unlink is not portable - "
1459 "use gnulib module unlink for portability");
1460# endif
8912421c
LC		 1461#endif
1462
1463
1464#if @GNULIB_UNLINKAT@
1465# if @REPLACE_UNLINKAT@
f4c79b3c
LC		 1466# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1467# undef unlinkat
1468# define unlinkat rpl_unlinkat
1469# endif
1470_GL_FUNCDECL_RPL (unlinkat, int, (int fd, char const *file, int flag)
1471 _GL_ARG_NONNULL ((2)));
1472_GL_CXXALIAS_RPL (unlinkat, int, (int fd, char const *file, int flag));
1473# else
1474# if !@HAVE_UNLINKAT@
1475_GL_FUNCDECL_SYS (unlinkat, int, (int fd, char const *file, int flag)
1476 _GL_ARG_NONNULL ((2)));
1477# endif
1478_GL_CXXALIAS_SYS (unlinkat, int, (int fd, char const *file, int flag));
8912421c 1479# endif
f4c79b3c 1480_GL_CXXALIASWARN (unlinkat);
8912421c
LC		 1481#elif defined GNULIB_POSIXCHECK
1482# undef unlinkat
61cd9dc9
LC		 1483# if HAVE_RAW_DECL_UNLINKAT
1484_GL_WARN_ON_USE (unlinkat, "unlinkat is not portable - "
1485 "use gnulib module openat for portability");
1486# endif
8912421c
LC		 1487#endif
1488
1489
414e4441 1490#if @GNULIB_USLEEP@
414e4441
LC		 1491/* Pause the execution of the current thread for N microseconds.
1492 Returns 0 on completion, or -1 on range error.
1493 See the POSIX:2001 specification
35428fb6 1494 <http://www.opengroup.org/susv3xsh/usleep.html>. */
f4c79b3c
LC		 1495# if @REPLACE_USLEEP@
1496# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1497# undef usleep
1498# define usleep rpl_usleep
1499# endif
1500_GL_FUNCDECL_RPL (usleep, int, (useconds_t n));
1501_GL_CXXALIAS_RPL (usleep, int, (useconds_t n));
1502# else
1503# if !@HAVE_USLEEP@
1504_GL_FUNCDECL_SYS (usleep, int, (useconds_t n));
1505# endif
1506_GL_CXXALIAS_SYS (usleep, int, (useconds_t n));
414e4441 1507# endif
f4c79b3c 1508_GL_CXXALIASWARN (usleep);
414e4441
LC		 1509#elif defined GNULIB_POSIXCHECK
1510# undef usleep
61cd9dc9
LC		 1511# if HAVE_RAW_DECL_USLEEP
1512_GL_WARN_ON_USE (usleep, "usleep is unportable - "
1513 "use gnulib module usleep for portability");
1514# endif
414e4441
LC		 1515#endif
1516
1517
f4c79b3c 1518#if @GNULIB_WRITE@
9b36a80c 1519/* Write up to COUNT bytes starting at BUF to file descriptor FD.
35428fb6
LC		 1520 See the POSIX:2008 specification
1521 <http://pubs.opengroup.org/onlinepubs/9699919799/functions/write.html>. */
1522# if @REPLACE_WRITE@
f4c79b3c
LC		 1523# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
1524# undef write
1525# define write rpl_write
1526# endif
1527_GL_FUNCDECL_RPL (write, ssize_t, (int fd, const void *buf, size_t count)
1528 _GL_ARG_NONNULL ((2)));
1529_GL_CXXALIAS_RPL (write, ssize_t, (int fd, const void *buf, size_t count));
1530# else
a927b6c1
LC		 1531/* Need to cast, because on mingw, the third parameter is
1532 unsigned int count
1533 and the return type is 'int'. */
1534_GL_CXXALIAS_SYS_CAST (write, ssize_t, (int fd, const void *buf, size_t count));
f4c79b3c
LC		 1535# endif
1536_GL_CXXALIASWARN (write);
9b36a80c
LC		 1537#endif
1538
af07e104 1539_GL_INLINE_HEADER_END
9b36a80c 1540
3d458a81
AW		 1541#endif /* _@GUARD_PREFIX@_UNISTD_H */
1542#endif /* _@GUARD_PREFIX@_UNISTD_H */
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