diff options
Diffstat (limited to 'libgnu/unistd.in.h')
| -rw-r--r-- | libgnu/unistd.in.h | 72 |
1 files changed, 60 insertions, 12 deletions
diff --git a/libgnu/unistd.in.h b/libgnu/unistd.in.h index cb9321e5..b6a348f5 100644 --- a/libgnu/unistd.in.h +++ b/libgnu/unistd.in.h @@ -1,5 +1,5 @@ /* Substitute for and wrapper around <unistd.h>. - Copyright (C) 2003-2017 Free Software Foundation, Inc. + Copyright (C) 2003-2018 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 @@ -12,7 +12,7 @@ GNU General Public License for more details. You should have received a copy of the GNU General Public License - along with this program; if not, see <http://www.gnu.org/licenses/>. */ + along with this program; if not, see <https://www.gnu.org/licenses/>. */ #ifndef _@GUARD_PREFIX@_UNISTD_H @@ -61,7 +61,7 @@ /* But avoid namespace pollution on glibc systems. */ #if (!(defined SEEK_CUR && defined SEEK_END && defined SEEK_SET) \ || ((@GNULIB_UNLINK@ || defined GNULIB_POSIXCHECK) \ - && ((defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__)) \ + && (defined _WIN32 && ! defined __CYGWIN__)) \ || ((@GNULIB_SYMLINKAT@ || defined GNULIB_POSIXCHECK) \ && defined __CYGWIN__)) \ && ! defined __GLIBC__ @@ -94,13 +94,13 @@ lseek(), read(), unlink(), write() in <io.h>. */ #if ((@GNULIB_CHDIR@ || @GNULIB_GETCWD@ || @GNULIB_RMDIR@ \ || defined GNULIB_POSIXCHECK) \ - && ((defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__)) + && (defined _WIN32 && ! defined __CYGWIN__)) # include <io.h> /* mingw32, mingw64 */ # include <direct.h> /* mingw64, MSVC 9 */ #elif (@GNULIB_CLOSE@ || @GNULIB_DUP@ || @GNULIB_DUP2@ || @GNULIB_ISATTY@ \ || @GNULIB_LSEEK@ || @GNULIB_READ@ || @GNULIB_UNLINK@ || @GNULIB_WRITE@ \ || defined GNULIB_POSIXCHECK) \ - && ((defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__) + && (defined _WIN32 && ! defined __CYGWIN__) # include <io.h> #endif @@ -134,9 +134,8 @@ /* The definition of _GL_WARN_ON_USE is copied here. */ -/* Get getopt(), optarg, optind, opterr, optopt. - But avoid namespace pollution on glibc systems. */ -#if @GNULIB_UNISTD_H_GETOPT@ && !defined __GLIBC__ && !defined _GL_SYSTEM_GETOPT +/* Get getopt(), optarg, optind, opterr, optopt. */ +#if @GNULIB_UNISTD_H_GETOPT@ && !defined _GL_SYSTEM_GETOPT # include <getopt-cdefs.h> # include <getopt-pfx-core.h> #endif @@ -379,7 +378,7 @@ _GL_WARN_ON_USE (dup2, "dup2 is unportable - " Close NEWFD first if it is open. Return newfd if successful, otherwise -1 and errno set. See the Linux man page at - <http://www.kernel.org/doc/man-pages/online/pages/man2/dup3.2.html>. */ + <https://www.kernel.org/doc/man-pages/online/pages/man2/dup3.2.html>. */ # if @HAVE_DUP3@ # if !(defined __cplusplus && defined GNULIB_NAMESPACE) # define dup3 rpl_dup3 @@ -401,6 +400,13 @@ _GL_WARN_ON_USE (dup3, "dup3 is unportable - " #if @GNULIB_ENVIRON@ +# if defined __CYGWIN__ && !defined __i386__ +/* The 'environ' variable is defined in a DLL. Therefore its declaration needs + the '__declspec(dllimport)' attribute, but the system's <unistd.h> lacks it. + This leads to a link error on 64-bit Cygwin when the option + -Wl,--disable-auto-import is in use. */ +_GL_EXTERN_C __declspec(dllimport) char **environ; +# endif # if !@HAVE_DECL_ENVIRON@ /* Set of environment variables and values. An array of strings of the form "VARIABLE=VALUE", terminated with a NULL. */ @@ -462,13 +468,25 @@ _GL_WARN_ON_USE (euidaccess, "euidaccess is unportable - " #if @GNULIB_FACCESSAT@ -# if !@HAVE_FACCESSAT@ +# if @REPLACE_FACCESSAT@ +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef faccessat +# define faccessat rpl_faccessat +# endif +_GL_FUNCDECL_RPL (faccessat, int, + (int fd, char const *name, int mode, int flag) + _GL_ARG_NONNULL ((2))); +_GL_CXXALIAS_RPL (faccessat, int, + (int fd, char const *name, int mode, int flag)); +# else +# if !@HAVE_FACCESSAT@ _GL_FUNCDECL_SYS (faccessat, int, (int fd, char const *file, int mode, int flag) _GL_ARG_NONNULL ((2))); -# endif +# endif _GL_CXXALIAS_SYS (faccessat, int, (int fd, char const *file, int mode, int flag)); +# endif _GL_CXXALIASWARN (faccessat); #elif defined GNULIB_POSIXCHECK # undef faccessat @@ -1149,7 +1167,7 @@ _GL_WARN_ON_USE (pipe, "pipe is unportable - " Store the read-end as fd[0] and the write-end as fd[1]. Return 0 upon success, or -1 with errno set upon failure. See also the Linux man page at - <http://www.kernel.org/doc/man-pages/online/pages/man2/pipe2.2.html>. */ + <https://www.kernel.org/doc/man-pages/online/pages/man2/pipe2.2.html>. */ # if @HAVE_PIPE2@ # if !(defined __cplusplus && defined GNULIB_NAMESPACE) # define pipe2 rpl_pipe2 @@ -1457,6 +1475,36 @@ _GL_WARN_ON_USE (symlinkat, "symlinkat is not portable - " #endif +#if @GNULIB_TRUNCATE@ +/* Change the size of the file designated by FILENAME to become equal to LENGTH. + Return 0 if successful, otherwise -1 and errno set. + See the POSIX:2008 specification + <http://pubs.opengroup.org/onlinepubs/9699919799/functions/truncate.html>. */ +# if @REPLACE_TRUNCATE@ +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef truncate +# define truncate rpl_truncate +# endif +_GL_FUNCDECL_RPL (truncate, int, (const char *filename, off_t length) + _GL_ARG_NONNULL ((1))); +_GL_CXXALIAS_RPL (truncate, int, (const char *filename, off_t length)); +# else +# if !@HAVE_DECL_TRUNCATE@ +_GL_FUNCDECL_SYS (truncate, int, (const char *filename, off_t length) + _GL_ARG_NONNULL ((1))); +# endif +_GL_CXXALIAS_SYS (truncate, int, (const char *filename, off_t length)); +# endif +_GL_CXXALIASWARN (truncate); +#elif defined GNULIB_POSIXCHECK +# undef truncate +# if HAVE_RAW_DECL_TRUNCATE +_GL_WARN_ON_USE (truncate, "truncate is unportable - " + "use gnulib module truncate for portability"); +# endif +#endif + + #if @GNULIB_TTYNAME_R@ /* Store at most BUFLEN characters of the pathname of the terminal FD is open on in BUF. Return 0 on success, otherwise an error number. */ |