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# Configure template for GNU tar.  -*- autoconf -*-
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# Copyright (C) 1991, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
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# 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010 Free
# Software Foundation, Inc.
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# 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
# the Free Software Foundation; either version 3, or (at your option)
# any later version.

# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# 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, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
# 02110-1301, USA.

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AC_INIT([GNU tar], [1.25], [bug-tar@gnu.org])
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AC_CONFIG_SRCDIR([src/tar.c])
AC_CONFIG_AUX_DIR([build-aux])
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AC_CONFIG_HEADERS([config.h])
AC_PREREQ([2.63])
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AM_INIT_AUTOMAKE([1.11 gnits tar-ustar dist-bzip2 dist-xz dist-shar std-options silent-rules])
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# Enable silent rules by default:
AM_SILENT_RULES([yes])
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AC_PROG_CC
AC_EXEEXT
AC_PROG_RANLIB
AC_PROG_YACC
gl_EARLY

AC_SYS_LARGEFILE
AC_ISC_POSIX
AC_C_INLINE

AC_CHECK_HEADERS_ONCE(fcntl.h linux/fd.h memory.h net/errno.h \
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  sgtty.h string.h \
  sys/param.h sys/device.h sys/gentape.h \
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  sys/inet.h sys/io/trioctl.h \
  sys/mtio.h sys/time.h sys/tprintf.h sys/tape.h \
  unistd.h locale.h)

AC_CHECK_HEADERS([sys/buf.h], [], [],
[#if HAVE_SYS_PARAM_H
#include <sys/param.h>
#endif])

AC_HEADER_SYS_WAIT

AC_HEADER_DIRENT
AC_HEADER_MAJOR
AC_HEADER_STAT
AC_HEADER_STDC

AC_MSG_CHECKING([for st_fstype string in struct stat])
AC_CACHE_VAL(diff_cv_st_fstype_string,
  [AC_TRY_COMPILE([#include <sys/types.h>
#include <sys/stat.h>], [struct stat s; s.st_fstype[0] = 'x';],
   diff_cv_st_fstype_string=yes,
   diff_cv_st_fstype_string=no)])
AC_MSG_RESULT($diff_cv_st_fstype_string)
if test $diff_cv_st_fstype_string = yes; then
  AC_DEFINE(HAVE_ST_FSTYPE_STRING, 1,
    [Define if struct stat has a char st_fstype[] member.])
fi

AC_TYPE_SIGNAL
AC_TYPE_MODE_T
AC_TYPE_PID_T
AC_TYPE_OFF_T
AC_TYPE_SIZE_T
AC_TYPE_UID_T
AC_CHECK_TYPE(major_t, , AC_DEFINE(major_t, int,
				   [Type of major device numbers.]))
AC_CHECK_TYPE(minor_t, , AC_DEFINE(minor_t, int,
				   [Type of minor device numbers.]))
AC_CHECK_TYPE(dev_t, unsigned)
AC_CHECK_TYPE(ino_t, unsigned)

gt_TYPE_SSIZE_T

# gnulib modules
gl_INIT
# paxutils modules
tar_PAXUTILS

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AC_CHECK_FUNCS_ONCE([fchmod fchown fsync lstat mkfifo readlink symlink])
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AC_CHECK_DECLS([getgrgid],,, [#include <grp.h>])
AC_CHECK_DECLS([getpwuid],,, [#include <pwd.h>])
AC_CHECK_DECLS([time],,, [#include <time.h>])

AC_REPLACE_FUNCS(waitpid)

AC_CACHE_CHECK(for remote shell, tar_cv_path_RSH,
  [if test -n "$RSH"; then
    tar_cv_path_RSH=$RSH
  else
    tar_cv_path_RSH=no
    for ac_file in /usr/ucb/rsh /usr/bin/remsh /usr/bin/rsh /usr/bsd/rsh \
	/usr/bin/nsh /usr/bin/rcmd
    do
      # Prefer a non-symlink rsh to a symlink one, so that binaries built
      # on AIX 4.1.4, where /usr/ucb/rsh is a symlink to /usr/bin/rsh
      # will run on AIX 4.3.0, which has only /usr/bin/rsh.
      if test -f $ac_file; then
	if (test -h $ac_file) 2>/dev/null; then
	  test $tar_cv_path_RSH = no && tar_cv_path_RSH=$ac_file
	else
	  tar_cv_path_RSH=$ac_file
	  break
	fi
      fi
    done
  fi])
if test $tar_cv_path_RSH = no; then
  AC_CHECK_HEADERS(netdb.h)
else
  AC_DEFINE_UNQUOTED(REMOTE_SHELL, "$tar_cv_path_RSH",
    [Define to the full path of your rsh, if any.])
fi

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TAR_COMPR_PROGRAM(compress)
TAR_COMPR_PROGRAM(gzip)
TAR_COMPR_PROGRAM(bzip2)
TAR_COMPR_PROGRAM(lzip)
TAR_COMPR_PROGRAM(lzma)
TAR_COMPR_PROGRAM(lzop)
TAR_COMPR_PROGRAM(xz)

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AC_MSG_CHECKING(for default archive format)

AC_ARG_VAR([DEFAULT_ARCHIVE_FORMAT],
           [Set the default archive format. Allowed values are: V7, OLDGNU, USTAR, POSIX, GNU. Default is GNU])

if test -z "$DEFAULT_ARCHIVE_FORMAT"; then
  DEFAULT_ARCHIVE_FORMAT="GNU"
fi
case $DEFAULT_ARCHIVE_FORMAT in
  V7|OLDGNU|USTAR|POSIX|GNU) ;;
  *) AC_MSG_ERROR(Invalid format name);;
esac
AC_DEFINE_UNQUOTED(DEFAULT_ARCHIVE_FORMAT, ${DEFAULT_ARCHIVE_FORMAT}_FORMAT,
  [By default produce archives of this format])
AC_MSG_RESULT($DEFAULT_ARCHIVE_FORMAT)

AC_MSG_CHECKING(for default archive)

AC_ARG_VAR([DEFAULT_ARCHIVE],
           [Set the name of the default archive (default: -)])
if test -z "$DEFAULT_ARCHIVE"; then
  DEFAULT_ARCHIVE=-
else
  if test -z "`ls $DEFAULT_ARCHIVE 2>/dev/null`"; then
    AC_MSG_WARN(DEFAULT_ARCHIVE \`$DEFAULT_ARCHIVE' not found on this system)
  fi
  # FIXME: Look for DEFTAPE in <sys/mtio.h>.
  # FIXME: Let DEVICE_PREFIX be configured from the environment.
  # FIXME: Rearrange, here.
  case $DEFAULT_ARCHIVE in
    *[[0-7][lmh]])
      AC_DEFINE(DENSITY_LETTER, 1,
	[Define to 1 if density may be indicated by [lmh] at end of device.])
      device_prefix=`echo $DEFAULT_ARCHIVE | sed 's/[0-7][lmh]$//'`
      ;;
    *[[0-7]])
      device_prefix=`echo $DEFAULT_ARCHIVE | sed 's/[0-7]$//'`
      ;;
    *)
      device_prefix=
      ;;
  esac
  case "$device_prefix" in
    ?*)
      AC_DEFINE_UNQUOTED(DEVICE_PREFIX, "$device_prefix",
	[Define to a string giving the prefix of the default device, without the part specifying the unit and density.])
      ;;
  esac
fi
AC_DEFINE_UNQUOTED(DEFAULT_ARCHIVE, "$DEFAULT_ARCHIVE",
  [Define to a string giving the full name of the default archive file.])
AC_MSG_RESULT($DEFAULT_ARCHIVE)

AC_ARG_VAR([DEFAULT_BLOCKING],
           [Define default blocking factor (default: 20)])
AC_MSG_CHECKING(for default blocking)
DEFAULT_BLOCKING=${DEFAULT_BLOCKING-20}
AC_DEFINE_UNQUOTED(DEFAULT_BLOCKING, $DEFAULT_BLOCKING,
  [Define to a number giving the default blocking size for archives.])
AC_MSG_RESULT($DEFAULT_BLOCKING)

AC_MSG_CHECKING(for default quoting style)

m4_define([QUOTING_STYLES],dnl
          [literal|shell|shell-always|c|escape|locale|clocale])
DEFAULT_QUOTING_STYLE="escape"
AC_ARG_VAR([DEFAULT_QUOTING_STYLE],
           [Set the default quoting style. Allowed values are: ] m4_bpatsubst(QUOTING_STYLES,[|], [[, ]]) [. Default is "escape".])

case $DEFAULT_QUOTING_STYLE in
QUOTING_STYLES) ;;
*)  AC_MSG_ERROR(Invalid quoting style);;
esac
AC_MSG_RESULT($DEFAULT_QUOTING_STYLE)
DEFAULT_QUOTING_STYLE=`echo ${DEFAULT_QUOTING_STYLE}|sed 's/-/_/g'`_quoting_style
AC_DEFINE_UNQUOTED(DEFAULT_QUOTING_STYLE, $DEFAULT_QUOTING_STYLE,
  [Define to a default quoting style (see lib/quoteargs.c for the list)])

# Iconv
AM_ICONV
AC_CHECK_HEADERS(iconv.h)
AC_CHECK_TYPE(iconv_t,:,
              AC_DEFINE(iconv_t, int,
                        [Conversion descriptor type]),
              [
#ifdef HAVE_ICONV_H
# include <iconv.h>
#endif
])

# Gettext.
AM_GNU_GETTEXT([external], [need-formatstring-macros])
AM_GNU_GETTEXT_VERSION([0.16])

# Initialize the test suite.
AC_CONFIG_TESTDIR(tests)
AC_CONFIG_FILES([tests/Makefile tests/atlocal]) # FIXME: tests/preset?
AM_MISSING_PROG([AUTOM4TE], [autom4te])

AC_SUBST(BACKUP_LIBEXEC_SCRIPTS)
AC_SUBST(BACKUP_SBIN_SCRIPTS)
AC_ARG_ENABLE(backup-scripts,
	      AC_HELP_STRING([--enable-backup-scripts],
                             [Create and install backup and restore scripts]),
              [case $enableval in
	       yes) BACKUP_LIBEXEC_SCRIPTS='$(BACKUP_LIBEXEC_SCRIPTS_LIST)'
                    BACKUP_SBIN_SCRIPTS='$(BACKUP_SBIN_SCRIPTS_LIST)'
                    ;;
               esac])

AC_SUBST(BACKUP_SED_COND)
if date +%Y-%m-%d 2>/dev/null >&2; then
	BACKUP_SED_COND='/^\#ELSE_DATE_FORMAT_OK/,/^\#ENDIF_DATE_FORMAT_OK/d;/^\#IF_DATE_FORMAT_OK/d'
else
	BACKUP_SED_COND='/^\#IF_DATE_FORMAT_OK/,/^\#ELSE_DATE_FORMAT_OK/d;/^\#ENDIF_DATE_FORMAT_OK/d'
fi

AC_OUTPUT([Makefile\
           doc/Makefile\
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	   gnu/Makefile\
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           lib/Makefile\
           po/Makefile.in\
           scripts/Makefile\
           rmt/Makefile\
           src/Makefile])