| # unistd_h.m4 serial 88 |
| dnl Copyright (C) 2006-2021 Free Software Foundation, Inc. |
| dnl This file is free software; the Free Software Foundation |
| dnl gives unlimited permission to copy and/or distribute it, |
| dnl with or without modifications, as long as this notice is preserved. |
| |
| dnl Written by Simon Josefsson, Bruno Haible. |
| |
| AC_DEFUN_ONCE([gl_UNISTD_H], |
| [ |
| dnl Ensure to expand the default settings once only, before all statements |
| dnl that occur in other macros. |
| AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) |
| |
| gl_CHECK_NEXT_HEADERS([unistd.h]) |
| if test $ac_cv_header_unistd_h = yes; then |
| HAVE_UNISTD_H=1 |
| else |
| HAVE_UNISTD_H=0 |
| fi |
| AC_SUBST([HAVE_UNISTD_H]) |
| |
| dnl Ensure the type pid_t gets defined. |
| AC_REQUIRE([AC_TYPE_PID_T]) |
| |
| dnl Determine WINDOWS_64_BIT_OFF_T. |
| AC_REQUIRE([gl_TYPE_OFF_T]) |
| |
| dnl Check for declarations of anything we want to poison if the |
| dnl corresponding gnulib module is not in use. |
| gl_WARN_ON_USE_PREPARE([[ |
| #if HAVE_UNISTD_H |
| # include <unistd.h> |
| #endif |
| /* Some systems declare various items in the wrong headers. */ |
| #if !(defined __GLIBC__ && !defined __UCLIBC__) |
| # include <fcntl.h> |
| # include <stdio.h> |
| # include <stdlib.h> |
| # if defined _WIN32 && ! defined __CYGWIN__ |
| # include <io.h> |
| # endif |
| #endif |
| ]], [access chdir chown copy_file_range dup dup2 dup3 environ euidaccess |
| execl execle execlp execv execve execvp execvpe |
| faccessat fchdir |
| fchownat fdatasync fsync ftruncate getcwd getdomainname getdtablesize |
| getentropy getgroups gethostname getlogin getlogin_r getpagesize getpass |
| getusershell setusershell endusershell |
| group_member isatty lchown link linkat lseek pipe pipe2 pread pwrite |
| readlink readlinkat rmdir sethostname sleep symlink symlinkat |
| truncate ttyname_r unlink unlinkat usleep]) |
| |
| AC_REQUIRE([AC_C_RESTRICT]) |
| |
| AC_CHECK_DECLS_ONCE([execvpe]) |
| if test $ac_cv_have_decl_execvpe = no; then |
| HAVE_DECL_EXECVPE=0 |
| fi |
| ]) |
| |
| # gl_UNISTD_MODULE_INDICATOR([modulename]) |
| # sets the shell variable that indicates the presence of the given module |
| # to a C preprocessor expression that will evaluate to 1. |
| # This macro invocation must not occur in macros that are AC_REQUIREd. |
| AC_DEFUN([gl_UNISTD_MODULE_INDICATOR], |
| [ |
| dnl Ensure to expand the default settings once only. |
| gl_UNISTD_H_REQUIRE_DEFAULTS |
| gl_MODULE_INDICATOR_SET_VARIABLE([$1]) |
| dnl Define it also as a C macro, for the benefit of the unit tests. |
| gl_MODULE_INDICATOR_FOR_TESTS([$1]) |
| ]) |
| |
| # Initializes the default values for AC_SUBSTed shell variables. |
| # This macro must not be AC_REQUIREd. It must only be invoked, and only |
| # outside of macros or in macros that are not AC_REQUIREd. |
| AC_DEFUN([gl_UNISTD_H_REQUIRE_DEFAULTS], |
| [ |
| m4_defun(GL_MODULE_INDICATOR_PREFIX[_UNISTD_H_MODULE_INDICATOR_DEFAULTS], [ |
| gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_ACCESS]) |
| gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_CHDIR]) |
| gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_CHOWN]) |
| gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_CLOSE]) |
| gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_COPY_FILE_RANGE]) |
| gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_DUP]) |
| gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_DUP2]) |
| gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_DUP3]) |
| gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_ENVIRON]) |
| gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_EUIDACCESS]) |
| gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_EXECL]) |
| gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_EXECLE]) |
| gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_EXECLP]) |
| gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_EXECV]) |
| gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_EXECVE]) |
| gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_EXECVP]) |
| gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_EXECVPE]) |
| gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FACCESSAT]) |
| gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FCHDIR]) |
| gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FCHOWNAT]) |
| gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FDATASYNC]) |
| gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FSYNC]) |
| gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_FTRUNCATE]) |
| gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_GETCWD]) |
| gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_GETDOMAINNAME]) |
| gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_GETDTABLESIZE]) |
| gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_GETENTROPY]) |
| gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_GETGROUPS]) |
| gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_GETHOSTNAME]) |
| gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_GETLOGIN]) |
| gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_GETLOGIN_R]) |
| gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_GETOPT_POSIX]) |
| gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_GETPAGESIZE]) |
| gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_GETPASS]) |
| gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_GETUSERSHELL]) |
| gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_GROUP_MEMBER]) |
| gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_ISATTY]) |
| gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_LCHOWN]) |
| gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_LINK]) |
| gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_LINKAT]) |
| gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_LSEEK]) |
| gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_PIPE]) |
| gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_PIPE2]) |
| gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_PREAD]) |
| gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_PWRITE]) |
| gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_READ]) |
| gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_READLINK]) |
| gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_READLINKAT]) |
| gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_RMDIR]) |
| gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_SETHOSTNAME]) |
| gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_SLEEP]) |
| gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_SYMLINK]) |
| gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_SYMLINKAT]) |
| gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_TRUNCATE]) |
| gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_TTYNAME_R]) |
| gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_UNISTD_H_NONBLOCKING]) |
| gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_UNISTD_H_SIGPIPE]) |
| gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_UNLINK]) |
| gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_UNLINKAT]) |
| gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_USLEEP]) |
| gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_WRITE]) |
| dnl Support Microsoft deprecated alias function names by default. |
| gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_ACCESS], [1]) |
| gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_CHDIR], [1]) |
| gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_CLOSE], [1]) |
| gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_DUP], [1]) |
| gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_DUP2], [1]) |
| gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_EXECL], [1]) |
| gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_EXECLE], [1]) |
| gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_EXECLP], [1]) |
| gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_EXECV], [1]) |
| gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_EXECVE], [1]) |
| gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_EXECVP], [1]) |
| gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_EXECVPE], [1]) |
| gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_GETCWD], [1]) |
| gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_GETPID], [1]) |
| gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_ISATTY], [1]) |
| gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_LSEEK], [1]) |
| gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_READ], [1]) |
| gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_RMDIR], [1]) |
| gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_SWAB], [1]) |
| gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_UNLINK], [1]) |
| gl_MODULE_INDICATOR_INIT_VARIABLE([GNULIB_MDA_WRITE], [1]) |
| ]) |
| m4_require(GL_MODULE_INDICATOR_PREFIX[_UNISTD_H_MODULE_INDICATOR_DEFAULTS]) |
| AC_REQUIRE([gl_UNISTD_H_DEFAULTS]) |
| ]) |
| |
| AC_DEFUN([gl_UNISTD_H_DEFAULTS], |
| [ |
| dnl Assume proper GNU behavior unless another module says otherwise. |
| HAVE_CHOWN=1; AC_SUBST([HAVE_CHOWN]) |
| HAVE_COPY_FILE_RANGE=1; AC_SUBST([HAVE_COPY_FILE_RANGE]) |
| HAVE_DUP3=1; AC_SUBST([HAVE_DUP3]) |
| HAVE_EUIDACCESS=1; AC_SUBST([HAVE_EUIDACCESS]) |
| HAVE_EXECVPE=1; AC_SUBST([HAVE_EXECVPE]) |
| HAVE_FACCESSAT=1; AC_SUBST([HAVE_FACCESSAT]) |
| HAVE_FCHDIR=1; AC_SUBST([HAVE_FCHDIR]) |
| HAVE_FCHOWNAT=1; AC_SUBST([HAVE_FCHOWNAT]) |
| HAVE_FDATASYNC=1; AC_SUBST([HAVE_FDATASYNC]) |
| HAVE_FSYNC=1; AC_SUBST([HAVE_FSYNC]) |
| HAVE_FTRUNCATE=1; AC_SUBST([HAVE_FTRUNCATE]) |
| HAVE_GETDTABLESIZE=1; AC_SUBST([HAVE_GETDTABLESIZE]) |
| HAVE_GETENTROPY=1; AC_SUBST([HAVE_GETENTROPY]) |
| HAVE_GETGROUPS=1; AC_SUBST([HAVE_GETGROUPS]) |
| HAVE_GETHOSTNAME=1; AC_SUBST([HAVE_GETHOSTNAME]) |
| HAVE_GETLOGIN=1; AC_SUBST([HAVE_GETLOGIN]) |
| HAVE_GETPAGESIZE=1; AC_SUBST([HAVE_GETPAGESIZE]) |
| HAVE_GETPASS=1; AC_SUBST([HAVE_GETPASS]) |
| HAVE_GROUP_MEMBER=1; AC_SUBST([HAVE_GROUP_MEMBER]) |
| HAVE_LCHOWN=1; AC_SUBST([HAVE_LCHOWN]) |
| HAVE_LINK=1; AC_SUBST([HAVE_LINK]) |
| HAVE_LINKAT=1; AC_SUBST([HAVE_LINKAT]) |
| HAVE_PIPE=1; AC_SUBST([HAVE_PIPE]) |
| HAVE_PIPE2=1; AC_SUBST([HAVE_PIPE2]) |
| HAVE_PREAD=1; AC_SUBST([HAVE_PREAD]) |
| HAVE_PWRITE=1; AC_SUBST([HAVE_PWRITE]) |
| HAVE_READLINK=1; AC_SUBST([HAVE_READLINK]) |
| HAVE_READLINKAT=1; AC_SUBST([HAVE_READLINKAT]) |
| HAVE_SETHOSTNAME=1; AC_SUBST([HAVE_SETHOSTNAME]) |
| HAVE_SLEEP=1; AC_SUBST([HAVE_SLEEP]) |
| HAVE_SYMLINK=1; AC_SUBST([HAVE_SYMLINK]) |
| HAVE_SYMLINKAT=1; AC_SUBST([HAVE_SYMLINKAT]) |
| HAVE_UNLINKAT=1; AC_SUBST([HAVE_UNLINKAT]) |
| HAVE_USLEEP=1; AC_SUBST([HAVE_USLEEP]) |
| HAVE_DECL_ENVIRON=1; AC_SUBST([HAVE_DECL_ENVIRON]) |
| HAVE_DECL_EXECVPE=1; AC_SUBST([HAVE_DECL_EXECVPE]) |
| HAVE_DECL_FCHDIR=1; AC_SUBST([HAVE_DECL_FCHDIR]) |
| HAVE_DECL_FDATASYNC=1; AC_SUBST([HAVE_DECL_FDATASYNC]) |
| HAVE_DECL_GETDOMAINNAME=1; AC_SUBST([HAVE_DECL_GETDOMAINNAME]) |
| HAVE_DECL_GETLOGIN=1; AC_SUBST([HAVE_DECL_GETLOGIN]) |
| HAVE_DECL_GETLOGIN_R=1; AC_SUBST([HAVE_DECL_GETLOGIN_R]) |
| HAVE_DECL_GETPAGESIZE=1; AC_SUBST([HAVE_DECL_GETPAGESIZE]) |
| HAVE_DECL_GETUSERSHELL=1; AC_SUBST([HAVE_DECL_GETUSERSHELL]) |
| HAVE_DECL_SETHOSTNAME=1; AC_SUBST([HAVE_DECL_SETHOSTNAME]) |
| HAVE_DECL_TRUNCATE=1; AC_SUBST([HAVE_DECL_TRUNCATE]) |
| HAVE_DECL_TTYNAME_R=1; AC_SUBST([HAVE_DECL_TTYNAME_R]) |
| HAVE_OS_H=0; AC_SUBST([HAVE_OS_H]) |
| HAVE_SYS_PARAM_H=0; AC_SUBST([HAVE_SYS_PARAM_H]) |
| REPLACE_ACCESS=0; AC_SUBST([REPLACE_ACCESS]) |
| REPLACE_CHOWN=0; AC_SUBST([REPLACE_CHOWN]) |
| REPLACE_CLOSE=0; AC_SUBST([REPLACE_CLOSE]) |
| REPLACE_DUP=0; AC_SUBST([REPLACE_DUP]) |
| REPLACE_DUP2=0; AC_SUBST([REPLACE_DUP2]) |
| REPLACE_EXECL=0; AC_SUBST([REPLACE_EXECL]) |
| REPLACE_EXECLE=0; AC_SUBST([REPLACE_EXECLE]) |
| REPLACE_EXECLP=0; AC_SUBST([REPLACE_EXECLP]) |
| REPLACE_EXECV=0; AC_SUBST([REPLACE_EXECV]) |
| REPLACE_EXECVE=0; AC_SUBST([REPLACE_EXECVE]) |
| REPLACE_EXECVP=0; AC_SUBST([REPLACE_EXECVP]) |
| REPLACE_EXECVPE=0; AC_SUBST([REPLACE_EXECVPE]) |
| REPLACE_FACCESSAT=0; AC_SUBST([REPLACE_FACCESSAT]) |
| REPLACE_FCHOWNAT=0; AC_SUBST([REPLACE_FCHOWNAT]) |
| REPLACE_FTRUNCATE=0; AC_SUBST([REPLACE_FTRUNCATE]) |
| REPLACE_GETCWD=0; AC_SUBST([REPLACE_GETCWD]) |
| REPLACE_GETDOMAINNAME=0; AC_SUBST([REPLACE_GETDOMAINNAME]) |
| REPLACE_GETDTABLESIZE=0; AC_SUBST([REPLACE_GETDTABLESIZE]) |
| REPLACE_GETLOGIN_R=0; AC_SUBST([REPLACE_GETLOGIN_R]) |
| REPLACE_GETGROUPS=0; AC_SUBST([REPLACE_GETGROUPS]) |
| REPLACE_GETPAGESIZE=0; AC_SUBST([REPLACE_GETPAGESIZE]) |
| REPLACE_GETPASS=0; AC_SUBST([REPLACE_GETPASS]) |
| REPLACE_ISATTY=0; AC_SUBST([REPLACE_ISATTY]) |
| REPLACE_LCHOWN=0; AC_SUBST([REPLACE_LCHOWN]) |
| REPLACE_LINK=0; AC_SUBST([REPLACE_LINK]) |
| REPLACE_LINKAT=0; AC_SUBST([REPLACE_LINKAT]) |
| REPLACE_LSEEK=0; AC_SUBST([REPLACE_LSEEK]) |
| REPLACE_PREAD=0; AC_SUBST([REPLACE_PREAD]) |
| REPLACE_PWRITE=0; AC_SUBST([REPLACE_PWRITE]) |
| REPLACE_READ=0; AC_SUBST([REPLACE_READ]) |
| REPLACE_READLINK=0; AC_SUBST([REPLACE_READLINK]) |
| REPLACE_READLINKAT=0; AC_SUBST([REPLACE_READLINKAT]) |
| REPLACE_RMDIR=0; AC_SUBST([REPLACE_RMDIR]) |
| REPLACE_SLEEP=0; AC_SUBST([REPLACE_SLEEP]) |
| REPLACE_SYMLINK=0; AC_SUBST([REPLACE_SYMLINK]) |
| REPLACE_SYMLINKAT=0; AC_SUBST([REPLACE_SYMLINKAT]) |
| REPLACE_TRUNCATE=0; AC_SUBST([REPLACE_TRUNCATE]) |
| REPLACE_TTYNAME_R=0; AC_SUBST([REPLACE_TTYNAME_R]) |
| REPLACE_UNLINK=0; AC_SUBST([REPLACE_UNLINK]) |
| REPLACE_UNLINKAT=0; AC_SUBST([REPLACE_UNLINKAT]) |
| REPLACE_USLEEP=0; AC_SUBST([REPLACE_USLEEP]) |
| REPLACE_WRITE=0; AC_SUBST([REPLACE_WRITE]) |
| UNISTD_H_HAVE_SYS_RANDOM_H=0; AC_SUBST([UNISTD_H_HAVE_SYS_RANDOM_H]) |
| UNISTD_H_HAVE_WINSOCK2_H=0; AC_SUBST([UNISTD_H_HAVE_WINSOCK2_H]) |
| UNISTD_H_HAVE_WINSOCK2_H_AND_USE_SOCKETS=0; |
| AC_SUBST([UNISTD_H_HAVE_WINSOCK2_H_AND_USE_SOCKETS]) |
| ]) |
