/* Substitute for and wrapper around <unistd.h>.
- Copyright (C) 2003-2012 Free Software Foundation, Inc.
+ Copyright (C) 2003-2016 Free Software Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
You should have received a copy of the GNU General Public License
along with this program; if not, see <http://www.gnu.org/licenses/>. */
+#ifndef _@GUARD_PREFIX@_UNISTD_H
+
#if __GNUC__ >= 3
@PRAGMA_SYSTEM_HEADER@
#endif
@PRAGMA_COLUMNS@
+#ifdef _GL_INCLUDING_UNISTD_H
/* Special invocation convention:
- - On mingw, several headers, including <winsock2.h>, include <unistd.h>,
- but we need to ensure that both the system <unistd.h> and <winsock2.h>
- are completely included before we replace gethostname. */
-#if @GNULIB_GETHOSTNAME@ && @UNISTD_H_HAVE_WINSOCK2_H@ \
- && !defined _GL_WINSOCK2_H_WITNESS && defined _WINSOCK2_H
-/* <unistd.h> is being indirectly included for the first time from
- <winsock2.h>; avoid declaring any overrides. */
-# if @HAVE_UNISTD_H@
-# @INCLUDE_NEXT@ @NEXT_UNISTD_H@
-# else
-# error unexpected; report this to bug-gnulib@gnu.org
-# endif
-# define _GL_WINSOCK2_H_WITNESS
+ - On Mac OS X 10.3.9 we have a sequence of nested includes
+ <unistd.h> -> <signal.h> -> <pthread.h> -> <unistd.h>
+ In this situation, the functions are not yet declared, therefore we cannot
+ provide the C++ aliases. */
-/* Normal invocation. */
-#elif !defined _@GUARD_PREFIX@_UNISTD_H
+#@INCLUDE_NEXT@ @NEXT_UNISTD_H@
+
+#else
+/* Normal invocation convention. */
/* The include_next requires a split double-inclusion guard. */
#if @HAVE_UNISTD_H@
+# define _GL_INCLUDING_UNISTD_H
# @INCLUDE_NEXT@ @NEXT_UNISTD_H@
+# undef _GL_INCLUDING_UNISTD_H
#endif
/* Get all possible declarations of gethostname(). */
/* mingw, MSVC, BeOS, Haiku declare environ in <stdlib.h>, not in
<unistd.h>. */
/* Solaris declares getcwd not only in <unistd.h> but also in <stdlib.h>. */
+/* OSF Tru64 Unix cannot see gnulib rpl_strtod when system <stdlib.h> is
+ included here. */
/* But avoid namespace pollution on glibc systems. */
-#ifndef __GLIBC__
+#if !defined __GLIBC__ && !defined __osf__
+# define __need_system_stdlib_h
# include <stdlib.h>
+# undef __need_system_stdlib_h
#endif
/* Native Windows platforms declare chdir, getcwd, rmdir in
/* Get getopt(), optarg, optind, opterr, optopt.
But avoid namespace pollution on glibc systems. */
#if @GNULIB_UNISTD_H_GETOPT@ && !defined __GLIBC__ && !defined _GL_SYSTEM_GETOPT
+# define __need_getopt
# include <getopt.h>
#endif
+#ifndef _GL_INLINE_HEADER_BEGIN
+ #error "Please include config.h first."
+#endif
_GL_INLINE_HEADER_BEGIN
#ifndef _GL_UNISTD_INLINE
# define _GL_UNISTD_INLINE _GL_INLINE
/* Set of environment variables and values. An array of strings of the form
"VARIABLE=VALUE", terminated with a NULL. */
# if defined __APPLE__ && defined __MACH__
+# include <TargetConditionals.h>
+# if !TARGET_OS_IPHONE && !TARGET_IPHONE_SIMULATOR
+# define _GL_USE_CRT_EXTERNS
+# endif
+# endif
+# ifdef _GL_USE_CRT_EXTERNS
# include <crt_externs.h>
# define environ (*_NSGetEnviron ())
# else
#if @GNULIB_GETDTABLESIZE@
/* Return the maximum number of file descriptors in the current process.
In POSIX, this is same as sysconf (_SC_OPEN_MAX). */
-# if !@HAVE_GETDTABLESIZE@
+# if @REPLACE_GETDTABLESIZE@
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+# undef getdtablesize
+# define getdtablesize rpl_getdtablesize
+# endif
+_GL_FUNCDECL_RPL (getdtablesize, int, (void));
+_GL_CXXALIAS_RPL (getdtablesize, int, (void));
+# else
+# if !@HAVE_GETDTABLESIZE@
_GL_FUNCDECL_SYS (getdtablesize, int, (void));
-# endif
+# endif
_GL_CXXALIAS_SYS (getdtablesize, int, (void));
+# endif
_GL_CXXALIASWARN (getdtablesize);
#elif defined GNULIB_POSIXCHECK
# undef getdtablesize
#if @GNULIB_READLINKAT@
-# if !@HAVE_READLINKAT@
+# if @REPLACE_READLINKAT@
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+# define readlinkat rpl_readlinkat
+# endif
+_GL_FUNCDECL_RPL (readlinkat, ssize_t,
+ (int fd, char const *file, char *buf, size_t len)
+ _GL_ARG_NONNULL ((2, 3)));
+_GL_CXXALIAS_RPL (readlinkat, ssize_t,
+ (int fd, char const *file, char *buf, size_t len));
+# else
+# if !@HAVE_READLINKAT@
_GL_FUNCDECL_SYS (readlinkat, ssize_t,
(int fd, char const *file, char *buf, size_t len)
_GL_ARG_NONNULL ((2, 3)));
-# endif
+# endif
_GL_CXXALIAS_SYS (readlinkat, ssize_t,
(int fd, char const *file, char *buf, size_t len));
+# endif
_GL_CXXALIASWARN (readlinkat);
#elif defined GNULIB_POSIXCHECK
# undef readlinkat
#if @GNULIB_SYMLINKAT@
-# if !@HAVE_SYMLINKAT@
+# if @REPLACE_SYMLINKAT@
+# if !(defined __cplusplus && defined GNULIB_NAMESPACE)
+# undef symlinkat
+# define symlinkat rpl_symlinkat
+# endif
+_GL_FUNCDECL_RPL (symlinkat, int,
+ (char const *contents, int fd, char const *file)
+ _GL_ARG_NONNULL ((1, 3)));
+_GL_CXXALIAS_RPL (symlinkat, int,
+ (char const *contents, int fd, char const *file));
+# else
+# if !@HAVE_SYMLINKAT@
_GL_FUNCDECL_SYS (symlinkat, int,
(char const *contents, int fd, char const *file)
_GL_ARG_NONNULL ((1, 3)));
-# endif
+# endif
_GL_CXXALIAS_SYS (symlinkat, int,
(char const *contents, int fd, char const *file));
+# endif
_GL_CXXALIASWARN (symlinkat);
#elif defined GNULIB_POSIXCHECK
# undef symlinkat
_GL_INLINE_HEADER_END
#endif /* _@GUARD_PREFIX@_UNISTD_H */
+#endif /* _GL_INCLUDING_UNISTD_H */
#endif /* _@GUARD_PREFIX@_UNISTD_H */
projects / deliverable / binutils-gdb.git / blobdiff