old-cross-binutils/gdb/gnulib/import/m4/unistd_h.m4
Pedro Alves 8839a007ad Import the "unistd" gnulib module.
I wanted to import the pathmax module, and that pulls in the unistd
module as dependency.  The unistd module is actually bigger than the
pathmax module.  If we're going to end up with it, might as well
import it explicitly, and make use of it throughout.

The "unistd" module makes a GNU-like <unistd.h> always available.
This means we no longer need to do:

 +#ifdef HAVE_UNISTD_H
  #include <unistd.h>
 +#endif

and we can remove a few constants from defs.h.

This is just the importing step.

gdb/
2013-07-01  Pedro Alves  <palves@redhat.com>

	Import the "unistd" gnulib module.
	* gnulib/update-gnulib.sh (IMPORTED_GNULIB_MODULES): Add "unistd".
	* gnulib/Makefile.in (aclocal_m4_deps): Add import/m4/off_t.m4,
	import/m4/ssize_t.m4, import/m4/sys_types_h.m4 and
	import/m4/unistd_h.m4.
	* gnulib/aclocal.m4: Renenerate.
	* gnulib/config.in: Renenerate.
	* gnulib/configure: Renenerate.
	* gnulib/import/Makefile.am: Renenerate.
	* gnulib/import/Makefile.in: Renenerate.
	* gnulib/import/m4/gnulib-cache.m4: Renenerate.
	* gnulib/import/m4/gnulib-comp.m4: Renenerate.
	* gnulib/import/m4/off_t.m4: New file.
	* gnulib/import/m4/ssize_t.m4: New file.
	* gnulib/import/m4/sys_types_h.m4: New file.
	* gnulib/import/m4/unistd_h.m4: New file.
	* gnulib/import/sys_types.in.h: New file.
	* gnulib/import/unistd.c: New file.
	* gnulib/import/unistd.in.h: New file.
2013-07-01 11:18:09 +00:00

186 lines
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Text

# unistd_h.m4 serial 66
dnl Copyright (C) 2006-2012 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([gl_UNISTD_H],
[
dnl Use AC_REQUIRE here, so that the default behavior below is expanded
dnl once only, before all statements 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 __WIN32__) && ! defined __CYGWIN__
# include <io.h>
# endif
#endif
]], [chdir chown dup dup2 dup3 environ euidaccess faccessat fchdir fchownat
fdatasync fsync ftruncate getcwd getdomainname getdtablesize getgroups
gethostname getlogin getlogin_r getpagesize
getusershell setusershell endusershell
group_member isatty lchown link linkat lseek pipe pipe2 pread pwrite
readlink readlinkat rmdir sethostname sleep symlink symlinkat ttyname_r
unlink unlinkat usleep])
])
AC_DEFUN([gl_UNISTD_MODULE_INDICATOR],
[
dnl Use AC_REQUIRE here, so that the default settings are expanded once only.
AC_REQUIRE([gl_UNISTD_H_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])
])
AC_DEFUN([gl_UNISTD_H_DEFAULTS],
[
GNULIB_CHDIR=0; AC_SUBST([GNULIB_CHDIR])
GNULIB_CHOWN=0; AC_SUBST([GNULIB_CHOWN])
GNULIB_CLOSE=0; AC_SUBST([GNULIB_CLOSE])
GNULIB_DUP=0; AC_SUBST([GNULIB_DUP])
GNULIB_DUP2=0; AC_SUBST([GNULIB_DUP2])
GNULIB_DUP3=0; AC_SUBST([GNULIB_DUP3])
GNULIB_ENVIRON=0; AC_SUBST([GNULIB_ENVIRON])
GNULIB_EUIDACCESS=0; AC_SUBST([GNULIB_EUIDACCESS])
GNULIB_FACCESSAT=0; AC_SUBST([GNULIB_FACCESSAT])
GNULIB_FCHDIR=0; AC_SUBST([GNULIB_FCHDIR])
GNULIB_FCHOWNAT=0; AC_SUBST([GNULIB_FCHOWNAT])
GNULIB_FDATASYNC=0; AC_SUBST([GNULIB_FDATASYNC])
GNULIB_FSYNC=0; AC_SUBST([GNULIB_FSYNC])
GNULIB_FTRUNCATE=0; AC_SUBST([GNULIB_FTRUNCATE])
GNULIB_GETCWD=0; AC_SUBST([GNULIB_GETCWD])
GNULIB_GETDOMAINNAME=0; AC_SUBST([GNULIB_GETDOMAINNAME])
GNULIB_GETDTABLESIZE=0; AC_SUBST([GNULIB_GETDTABLESIZE])
GNULIB_GETGROUPS=0; AC_SUBST([GNULIB_GETGROUPS])
GNULIB_GETHOSTNAME=0; AC_SUBST([GNULIB_GETHOSTNAME])
GNULIB_GETLOGIN=0; AC_SUBST([GNULIB_GETLOGIN])
GNULIB_GETLOGIN_R=0; AC_SUBST([GNULIB_GETLOGIN_R])
GNULIB_GETPAGESIZE=0; AC_SUBST([GNULIB_GETPAGESIZE])
GNULIB_GETUSERSHELL=0; AC_SUBST([GNULIB_GETUSERSHELL])
GNULIB_GROUP_MEMBER=0; AC_SUBST([GNULIB_GROUP_MEMBER])
GNULIB_ISATTY=0; AC_SUBST([GNULIB_ISATTY])
GNULIB_LCHOWN=0; AC_SUBST([GNULIB_LCHOWN])
GNULIB_LINK=0; AC_SUBST([GNULIB_LINK])
GNULIB_LINKAT=0; AC_SUBST([GNULIB_LINKAT])
GNULIB_LSEEK=0; AC_SUBST([GNULIB_LSEEK])
GNULIB_PIPE=0; AC_SUBST([GNULIB_PIPE])
GNULIB_PIPE2=0; AC_SUBST([GNULIB_PIPE2])
GNULIB_PREAD=0; AC_SUBST([GNULIB_PREAD])
GNULIB_PWRITE=0; AC_SUBST([GNULIB_PWRITE])
GNULIB_READ=0; AC_SUBST([GNULIB_READ])
GNULIB_READLINK=0; AC_SUBST([GNULIB_READLINK])
GNULIB_READLINKAT=0; AC_SUBST([GNULIB_READLINKAT])
GNULIB_RMDIR=0; AC_SUBST([GNULIB_RMDIR])
GNULIB_SETHOSTNAME=0; AC_SUBST([GNULIB_SETHOSTNAME])
GNULIB_SLEEP=0; AC_SUBST([GNULIB_SLEEP])
GNULIB_SYMLINK=0; AC_SUBST([GNULIB_SYMLINK])
GNULIB_SYMLINKAT=0; AC_SUBST([GNULIB_SYMLINKAT])
GNULIB_TTYNAME_R=0; AC_SUBST([GNULIB_TTYNAME_R])
GNULIB_UNISTD_H_NONBLOCKING=0; AC_SUBST([GNULIB_UNISTD_H_NONBLOCKING])
GNULIB_UNISTD_H_SIGPIPE=0; AC_SUBST([GNULIB_UNISTD_H_SIGPIPE])
GNULIB_UNLINK=0; AC_SUBST([GNULIB_UNLINK])
GNULIB_UNLINKAT=0; AC_SUBST([GNULIB_UNLINKAT])
GNULIB_USLEEP=0; AC_SUBST([GNULIB_USLEEP])
GNULIB_WRITE=0; AC_SUBST([GNULIB_WRITE])
dnl Assume proper GNU behavior unless another module says otherwise.
HAVE_CHOWN=1; AC_SUBST([HAVE_CHOWN])
HAVE_DUP2=1; AC_SUBST([HAVE_DUP2])
HAVE_DUP3=1; AC_SUBST([HAVE_DUP3])
HAVE_EUIDACCESS=1; AC_SUBST([HAVE_EUIDACCESS])
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_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_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_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_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_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_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_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_GETLOGIN_R=0; AC_SUBST([REPLACE_GETLOGIN_R])
REPLACE_GETGROUPS=0; AC_SUBST([REPLACE_GETGROUPS])
REPLACE_GETPAGESIZE=0; AC_SUBST([REPLACE_GETPAGESIZE])
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_RMDIR=0; AC_SUBST([REPLACE_RMDIR])
REPLACE_SLEEP=0; AC_SUBST([REPLACE_SLEEP])
REPLACE_SYMLINK=0; AC_SUBST([REPLACE_SYMLINK])
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_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])
])