Sync from coreutils. * .cppi-disable: Add regcomp.c, regex_internal.c, regex_internal.h, stat-time.h. * argmatch.h: Include verify.h (ARGMATCH_VERIFY): Use verify rather than rolling our own. (ARGMATCH_ASSERT): Remove; unused. * canonicalize.c: Assume STDC_HEADERS. * exclude.c: Include "strcase.h". * regex_internal.h [!defined _LIBC]: Likewise. * getusershell.c: Include stdio--.h rather than stdio.h and stdio-safer.h. (getusershell): Call fopen, not fopen_safer. * save-cwd.c: Include fcntl--.h rather than fcntl.h. Do not include unistd-safer.h. (save_cwd): Don't call fd_safer; no longer needed now that we include fcntl--.h. * modules/argmatch (Depends-on): Add verify. * modules/getloadavg (Depends-on): Depend on fcntl-safer, not unistd-safer. * modules/save-cwd (Depends-on): Likewise. * backupfile.m4, calloc.m4, chown.m4, cloexec.m4, dup2.m4: * fileblocks.m4, free.m4, ftruncate.m4, getcwd.m4, getpagesize.m4: * getugroups.m4, group-member.m4, idcache.m4, link-follow.m4: * mkstemp.m4, mktime.m4, mountlist.m4, nanosleep.m4, pathmax.m4: * physmem.m4, posixver.m4, putenv.m4, safe-read.m4, same.m4: * save-cwd.m4, stdio-safer.m4, unistd-safer.m4, unlinkdir.m4: * userspec.m4, xgetcwd.m4, xreadlink.m4: Don't bother checking for string.h, stdlib.h, unistd.h. * fts.m4 (gl_FUNC_FTS_CORE): Don't require AC_FUNC_LSTAT_FOLLOWS_SLASHED_SYMLINK; that's now the lstat module's job. * jm-macros.m4 (gl_MACROS): Likewise. * prereq.m4 (gl_PREREQ): Add gl_FUNC_LSTAT. * backupfile.c: Use ARGMATCH_VERIFY, just in case. * posixtm.c (posixtime) [lint]: Initialize *all* of tm0, not just the .tm_year member, since otherwise gcc-4.0 would now warn about tm_zone, tm_gmtoff, tm_isdst, tm_yday, tm_wday. * quotearg.c (quotearg_n_options): Change code to be suboptimal, in order to avoid an unsuppressible warning from gcc on 64-bit systems. * lstat.m4 (gl_FUNC_LSTAT): Use AC_LIBSOURCES to require lstat.c and lstat.h. Remove obsolete comment. * xreadlink.m4: Use AC_LIBSOURCES and AC_LIBOBJ. * xstrtod.m4: Likewise.

# physmem.m4 serial 5
dnl Copyright (C) 2002, 2003, 2005 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.

# Check for the external symbol, _system_configuration,
# a struct with member `physmem'.
AC_DEFUN([gl_SYS__SYSTEM_CONFIGURATION],
  [AC_CACHE_CHECK(for external symbol _system_configuration,
		  gl_cv_var__system_configuration,
    [AC_LINK_IFELSE([AC_LANG_PROGRAM(
		      [[#include <sys/systemcfg.h>
		      ]],
		      [double x = _system_configuration.physmem;])],
      [gl_cv_var__system_configuration=yes],
      [gl_cv_var__system_configuration=no])])

    if test $gl_cv_var__system_configuration = yes; then
      AC_DEFINE(HAVE__SYSTEM_CONFIGURATION, 1,
		[Define to 1 if you have the external variable,
		_system_configuration with a member named physmem.])
    fi
  ]
)

AC_DEFUN([gl_PHYSMEM],
[
  AC_LIBSOURCES([physmem.c, physmem.h])
  AC_LIBOBJ([physmem])

  # Prerequisites of lib/physmem.c.
  AC_CHECK_HEADERS([sys/pstat.h sys/sysmp.h sys/sysinfo.h \
    machine/hal_sysinfo.h sys/table.h sys/param.h sys/sysctl.h \
    sys/systemcfg.h],,, [AC_INCLUDES_DEFAULT])

  AC_CHECK_FUNCS(pstat_getstatic pstat_getdynamic sysmp getsysinfo sysctl table)
  AC_REQUIRE([gl_SYS__SYSTEM_CONFIGURATION])
])