1# generated automatically by aclocal 1.11.1 -*- Autoconf -*-
2
3# Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
4# 2005, 2006, 2007, 2008, 2009  Free Software Foundation, Inc.
5# This file is free software; the Free Software Foundation
6# gives unlimited permission to copy and/or distribute it,
7# with or without modifications, as long as this notice is preserved.
8
9# This program is distributed in the hope that it will be useful,
10# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
11# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
12# PARTICULAR PURPOSE.
13
14m4_ifndef([AC_AUTOCONF_VERSION],
15  [m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl
16m4_if(m4_defn([AC_AUTOCONF_VERSION]), [2.68],,
17[m4_warning([this file was generated for autoconf 2.68.
18You have another version of autoconf.  It may work, but is not guaranteed to.
19If you have problems, you may need to regenerate the build system entirely.
20To do so, use the procedure documented by the package, typically `autoreconf'.])])
21
22# pkg.m4 - Macros to locate and utilise pkg-config.            -*- Autoconf -*-
23# serial 1 (pkg-config-0.24)
24#
25# Copyright © 2004 Scott James Remnant <scott@netsplit.com>.
26#
27# This program is free software; you can redistribute it and/or modify
28# it under the terms of the GNU General Public License as published by
29# the Free Software Foundation; either version 2 of the License, or
30# (at your option) any later version.
31#
32# This program is distributed in the hope that it will be useful, but
33# WITHOUT ANY WARRANTY; without even the implied warranty of
34# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
35# General Public License for more details.
36#
37# You should have received a copy of the GNU General Public License
38# along with this program; if not, write to the Free Software
39# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
40#
41# As a special exception to the GNU General Public License, if you
42# distribute this file as part of a program that contains a
43# configuration script generated by Autoconf, you may include it under
44# the same distribution terms that you use for the rest of that program.
45
46# PKG_PROG_PKG_CONFIG([MIN-VERSION])
47# ----------------------------------
48AC_DEFUN([PKG_PROG_PKG_CONFIG],
49[m4_pattern_forbid([^_?PKG_[A-Z_]+$])
50m4_pattern_allow([^PKG_CONFIG(_(PATH|LIBDIR|SYSROOT_DIR|ALLOW_SYSTEM_(CFLAGS|LIBS)))?$])
51m4_pattern_allow([^PKG_CONFIG_(DISABLE_UNINSTALLED|TOP_BUILD_DIR|DEBUG_SPEW)$])
52AC_ARG_VAR([PKG_CONFIG], [path to pkg-config utility])
53AC_ARG_VAR([PKG_CONFIG_PATH], [directories to add to pkg-config's search path])
54AC_ARG_VAR([PKG_CONFIG_LIBDIR], [path overriding pkg-config's built-in search path])
55
56if test "x$ac_cv_env_PKG_CONFIG_set" != "xset"; then
57	AC_PATH_TOOL([PKG_CONFIG], [pkg-config])
58fi
59if test -n "$PKG_CONFIG"; then
60	_pkg_min_version=m4_default([$1], [0.9.0])
61	AC_MSG_CHECKING([pkg-config is at least version $_pkg_min_version])
62	if $PKG_CONFIG --atleast-pkgconfig-version $_pkg_min_version; then
63		AC_MSG_RESULT([yes])
64	else
65		AC_MSG_RESULT([no])
66		PKG_CONFIG=""
67	fi
68fi[]dnl
69])# PKG_PROG_PKG_CONFIG
70
71# PKG_CHECK_EXISTS(MODULES, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
72#
73# Check to see whether a particular set of modules exists.  Similar
74# to PKG_CHECK_MODULES(), but does not set variables or print errors.
75#
76# Please remember that m4 expands AC_REQUIRE([PKG_PROG_PKG_CONFIG])
77# only at the first occurence in configure.ac, so if the first place
78# it's called might be skipped (such as if it is within an "if", you
79# have to call PKG_CHECK_EXISTS manually
80# --------------------------------------------------------------
81AC_DEFUN([PKG_CHECK_EXISTS],
82[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
83if test -n "$PKG_CONFIG" && \
84    AC_RUN_LOG([$PKG_CONFIG --exists --print-errors "$1"]); then
85  m4_default([$2], [:])
86m4_ifvaln([$3], [else
87  $3])dnl
88fi])
89
90# _PKG_CONFIG([VARIABLE], [COMMAND], [MODULES])
91# ---------------------------------------------
92m4_define([_PKG_CONFIG],
93[if test -n "$$1"; then
94    pkg_cv_[]$1="$$1"
95 elif test -n "$PKG_CONFIG"; then
96    PKG_CHECK_EXISTS([$3],
97                     [pkg_cv_[]$1=`$PKG_CONFIG --[]$2 "$3" 2>/dev/null`
98		      test "x$?" != "x0" && pkg_failed=yes ],
99		     [pkg_failed=yes])
100 else
101    pkg_failed=untried
102fi[]dnl
103])# _PKG_CONFIG
104
105# _PKG_SHORT_ERRORS_SUPPORTED
106# -----------------------------
107AC_DEFUN([_PKG_SHORT_ERRORS_SUPPORTED],
108[AC_REQUIRE([PKG_PROG_PKG_CONFIG])
109if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
110        _pkg_short_errors_supported=yes
111else
112        _pkg_short_errors_supported=no
113fi[]dnl
114])# _PKG_SHORT_ERRORS_SUPPORTED
115
116
117# PKG_CHECK_MODULES(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND],
118# [ACTION-IF-NOT-FOUND])
119#
120#
121# Note that if there is a possibility the first call to
122# PKG_CHECK_MODULES might not happen, you should be sure to include an
123# explicit call to PKG_PROG_PKG_CONFIG in your configure.ac
124#
125#
126# --------------------------------------------------------------
127AC_DEFUN([PKG_CHECK_MODULES],
128[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
129AC_ARG_VAR([$1][_CFLAGS], [C compiler flags for $1, overriding pkg-config])dnl
130AC_ARG_VAR([$1][_LIBS], [linker flags for $1, overriding pkg-config])dnl
131
132pkg_failed=no
133AC_MSG_CHECKING([for $1])
134
135_PKG_CONFIG([$1][_CFLAGS], [cflags], [$2])
136_PKG_CONFIG([$1][_LIBS], [libs], [$2])
137
138m4_define([_PKG_TEXT], [Alternatively, you may set the environment variables $1[]_CFLAGS
139and $1[]_LIBS to avoid the need to call pkg-config.
140See the pkg-config man page for more details.])
141
142if test $pkg_failed = yes; then
143   	AC_MSG_RESULT([no])
144        _PKG_SHORT_ERRORS_SUPPORTED
145        if test $_pkg_short_errors_supported = yes; then
146	        $1[]_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "$2" 2>&1`
147        else
148	        $1[]_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "$2" 2>&1`
149        fi
150	# Put the nasty error message in config.log where it belongs
151	echo "$$1[]_PKG_ERRORS" >&AS_MESSAGE_LOG_FD
152
153	m4_default([$4], [AC_MSG_ERROR(
154[Package requirements ($2) were not met:
155
156$$1_PKG_ERRORS
157
158Consider adjusting the PKG_CONFIG_PATH environment variable if you
159installed software in a non-standard prefix.
160
161_PKG_TEXT])[]dnl
162        ])
163elif test $pkg_failed = untried; then
164     	AC_MSG_RESULT([no])
165	m4_default([$4], [AC_MSG_FAILURE(
166[The pkg-config script could not be found or is too old.  Make sure it
167is in your PATH or set the PKG_CONFIG environment variable to the full
168path to pkg-config.
169
170_PKG_TEXT
171
172To get pkg-config, see <http://pkg-config.freedesktop.org/>.])[]dnl
173        ])
174else
175	$1[]_CFLAGS=$pkg_cv_[]$1[]_CFLAGS
176	$1[]_LIBS=$pkg_cv_[]$1[]_LIBS
177        AC_MSG_RESULT([yes])
178	$3
179fi[]dnl
180])# PKG_CHECK_MODULES
181
182# Copyright (C) 2002, 2003, 2005, 2006, 2007, 2008  Free Software Foundation, Inc.
183#
184# This file is free software; the Free Software Foundation
185# gives unlimited permission to copy and/or distribute it,
186# with or without modifications, as long as this notice is preserved.
187
188# AM_AUTOMAKE_VERSION(VERSION)
189# ----------------------------
190# Automake X.Y traces this macro to ensure aclocal.m4 has been
191# generated from the m4 files accompanying Automake X.Y.
192# (This private macro should not be called outside this file.)
193AC_DEFUN([AM_AUTOMAKE_VERSION],
194[am__api_version='1.11'
195dnl Some users find AM_AUTOMAKE_VERSION and mistake it for a way to
196dnl require some minimum version.  Point them to the right macro.
197m4_if([$1], [1.11.1], [],
198      [AC_FATAL([Do not call $0, use AM_INIT_AUTOMAKE([$1]).])])dnl
199])
200
201# _AM_AUTOCONF_VERSION(VERSION)
202# -----------------------------
203# aclocal traces this macro to find the Autoconf version.
204# This is a private macro too.  Using m4_define simplifies
205# the logic in aclocal, which can simply ignore this definition.
206m4_define([_AM_AUTOCONF_VERSION], [])
207
208# AM_SET_CURRENT_AUTOMAKE_VERSION
209# -------------------------------
210# Call AM_AUTOMAKE_VERSION and AM_AUTOMAKE_VERSION so they can be traced.
211# This function is AC_REQUIREd by AM_INIT_AUTOMAKE.
212AC_DEFUN([AM_SET_CURRENT_AUTOMAKE_VERSION],
213[AM_AUTOMAKE_VERSION([1.11.1])dnl
214m4_ifndef([AC_AUTOCONF_VERSION],
215  [m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl
216_AM_AUTOCONF_VERSION(m4_defn([AC_AUTOCONF_VERSION]))])
217
218# AM_AUX_DIR_EXPAND                                         -*- Autoconf -*-
219
220# Copyright (C) 2001, 2003, 2005  Free Software Foundation, Inc.
221#
222# This file is free software; the Free Software Foundation
223# gives unlimited permission to copy and/or distribute it,
224# with or without modifications, as long as this notice is preserved.
225
226# For projects using AC_CONFIG_AUX_DIR([foo]), Autoconf sets
227# $ac_aux_dir to `$srcdir/foo'.  In other projects, it is set to
228# `$srcdir', `$srcdir/..', or `$srcdir/../..'.
229#
230# Of course, Automake must honor this variable whenever it calls a
231# tool from the auxiliary directory.  The problem is that $srcdir (and
232# therefore $ac_aux_dir as well) can be either absolute or relative,
233# depending on how configure is run.  This is pretty annoying, since
234# it makes $ac_aux_dir quite unusable in subdirectories: in the top
235# source directory, any form will work fine, but in subdirectories a
236# relative path needs to be adjusted first.
237#
238# $ac_aux_dir/missing
239#    fails when called from a subdirectory if $ac_aux_dir is relative
240# $top_srcdir/$ac_aux_dir/missing
241#    fails if $ac_aux_dir is absolute,
242#    fails when called from a subdirectory in a VPATH build with
243#          a relative $ac_aux_dir
244#
245# The reason of the latter failure is that $top_srcdir and $ac_aux_dir
246# are both prefixed by $srcdir.  In an in-source build this is usually
247# harmless because $srcdir is `.', but things will broke when you
248# start a VPATH build or use an absolute $srcdir.
249#
250# So we could use something similar to $top_srcdir/$ac_aux_dir/missing,
251# iff we strip the leading $srcdir from $ac_aux_dir.  That would be:
252#   am_aux_dir='\$(top_srcdir)/'`expr "$ac_aux_dir" : "$srcdir//*\(.*\)"`
253# and then we would define $MISSING as
254#   MISSING="\${SHELL} $am_aux_dir/missing"
255# This will work as long as MISSING is not called from configure, because
256# unfortunately $(top_srcdir) has no meaning in configure.
257# However there are other variables, like CC, which are often used in
258# configure, and could therefore not use this "fixed" $ac_aux_dir.
259#
260# Another solution, used here, is to always expand $ac_aux_dir to an
261# absolute PATH.  The drawback is that using absolute paths prevent a
262# configured tree to be moved without reconfiguration.
263
264AC_DEFUN([AM_AUX_DIR_EXPAND],
265[dnl Rely on autoconf to set up CDPATH properly.
266AC_PREREQ([2.50])dnl
267# expand $ac_aux_dir to an absolute path
268am_aux_dir=`cd $ac_aux_dir && pwd`
269])
270
271# AM_CONDITIONAL                                            -*- Autoconf -*-
272
273# Copyright (C) 1997, 2000, 2001, 2003, 2004, 2005, 2006, 2008
274# Free Software Foundation, Inc.
275#
276# This file is free software; the Free Software Foundation
277# gives unlimited permission to copy and/or distribute it,
278# with or without modifications, as long as this notice is preserved.
279
280# serial 9
281
282# AM_CONDITIONAL(NAME, SHELL-CONDITION)
283# -------------------------------------
284# Define a conditional.
285AC_DEFUN([AM_CONDITIONAL],
286[AC_PREREQ(2.52)dnl
287 ifelse([$1], [TRUE],  [AC_FATAL([$0: invalid condition: $1])],
288	[$1], [FALSE], [AC_FATAL([$0: invalid condition: $1])])dnl
289AC_SUBST([$1_TRUE])dnl
290AC_SUBST([$1_FALSE])dnl
291_AM_SUBST_NOTMAKE([$1_TRUE])dnl
292_AM_SUBST_NOTMAKE([$1_FALSE])dnl
293m4_define([_AM_COND_VALUE_$1], [$2])dnl
294if $2; then
295  $1_TRUE=
296  $1_FALSE='#'
297else
298  $1_TRUE='#'
299  $1_FALSE=
300fi
301AC_CONFIG_COMMANDS_PRE(
302[if test -z "${$1_TRUE}" && test -z "${$1_FALSE}"; then
303  AC_MSG_ERROR([[conditional "$1" was never defined.
304Usually this means the macro was only invoked conditionally.]])
305fi])])
306
307# Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2009
308# Free Software Foundation, Inc.
309#
310# This file is free software; the Free Software Foundation
311# gives unlimited permission to copy and/or distribute it,
312# with or without modifications, as long as this notice is preserved.
313
314# serial 10
315
316# There are a few dirty hacks below to avoid letting `AC_PROG_CC' be
317# written in clear, in which case automake, when reading aclocal.m4,
318# will think it sees a *use*, and therefore will trigger all it's
319# C support machinery.  Also note that it means that autoscan, seeing
320# CC etc. in the Makefile, will ask for an AC_PROG_CC use...
321
322
323# _AM_DEPENDENCIES(NAME)
324# ----------------------
325# See how the compiler implements dependency checking.
326# NAME is "CC", "CXX", "GCJ", or "OBJC".
327# We try a few techniques and use that to set a single cache variable.
328#
329# We don't AC_REQUIRE the corresponding AC_PROG_CC since the latter was
330# modified to invoke _AM_DEPENDENCIES(CC); we would have a circular
331# dependency, and given that the user is not expected to run this macro,
332# just rely on AC_PROG_CC.
333AC_DEFUN([_AM_DEPENDENCIES],
334[AC_REQUIRE([AM_SET_DEPDIR])dnl
335AC_REQUIRE([AM_OUTPUT_DEPENDENCY_COMMANDS])dnl
336AC_REQUIRE([AM_MAKE_INCLUDE])dnl
337AC_REQUIRE([AM_DEP_TRACK])dnl
338
339ifelse([$1], CC,   [depcc="$CC"   am_compiler_list=],
340       [$1], CXX,  [depcc="$CXX"  am_compiler_list=],
341       [$1], OBJC, [depcc="$OBJC" am_compiler_list='gcc3 gcc'],
342       [$1], UPC,  [depcc="$UPC"  am_compiler_list=],
343       [$1], GCJ,  [depcc="$GCJ"  am_compiler_list='gcc3 gcc'],
344                   [depcc="$$1"   am_compiler_list=])
345
346AC_CACHE_CHECK([dependency style of $depcc],
347               [am_cv_$1_dependencies_compiler_type],
348[if test -z "$AMDEP_TRUE" && test -f "$am_depcomp"; then
349  # We make a subdir and do the tests there.  Otherwise we can end up
350  # making bogus files that we don't know about and never remove.  For
351  # instance it was reported that on HP-UX the gcc test will end up
352  # making a dummy file named `D' -- because `-MD' means `put the output
353  # in D'.
354  mkdir conftest.dir
355  # Copy depcomp to subdir because otherwise we won't find it if we're
356  # using a relative directory.
357  cp "$am_depcomp" conftest.dir
358  cd conftest.dir
359  # We will build objects and dependencies in a subdirectory because
360  # it helps to detect inapplicable dependency modes.  For instance
361  # both Tru64's cc and ICC support -MD to output dependencies as a
362  # side effect of compilation, but ICC will put the dependencies in
363  # the current directory while Tru64 will put them in the object
364  # directory.
365  mkdir sub
366
367  am_cv_$1_dependencies_compiler_type=none
368  if test "$am_compiler_list" = ""; then
369     am_compiler_list=`sed -n ['s/^#*\([a-zA-Z0-9]*\))$/\1/p'] < ./depcomp`
370  fi
371  am__universal=false
372  m4_case([$1], [CC],
373    [case " $depcc " in #(
374     *\ -arch\ *\ -arch\ *) am__universal=true ;;
375     esac],
376    [CXX],
377    [case " $depcc " in #(
378     *\ -arch\ *\ -arch\ *) am__universal=true ;;
379     esac])
380
381  for depmode in $am_compiler_list; do
382    # Setup a source with many dependencies, because some compilers
383    # like to wrap large dependency lists on column 80 (with \), and
384    # we should not choose a depcomp mode which is confused by this.
385    #
386    # We need to recreate these files for each test, as the compiler may
387    # overwrite some of them when testing with obscure command lines.
388    # This happens at least with the AIX C compiler.
389    : > sub/conftest.c
390    for i in 1 2 3 4 5 6; do
391      echo '#include "conftst'$i'.h"' >> sub/conftest.c
392      # Using `: > sub/conftst$i.h' creates only sub/conftst1.h with
393      # Solaris 8's {/usr,}/bin/sh.
394      touch sub/conftst$i.h
395    done
396    echo "${am__include} ${am__quote}sub/conftest.Po${am__quote}" > confmf
397
398    # We check with `-c' and `-o' for the sake of the "dashmstdout"
399    # mode.  It turns out that the SunPro C++ compiler does not properly
400    # handle `-M -o', and we need to detect this.  Also, some Intel
401    # versions had trouble with output in subdirs
402    am__obj=sub/conftest.${OBJEXT-o}
403    am__minus_obj="-o $am__obj"
404    case $depmode in
405    gcc)
406      # This depmode causes a compiler race in universal mode.
407      test "$am__universal" = false || continue
408      ;;
409    nosideeffect)
410      # after this tag, mechanisms are not by side-effect, so they'll
411      # only be used when explicitly requested
412      if test "x$enable_dependency_tracking" = xyes; then
413	continue
414      else
415	break
416      fi
417      ;;
418    msvisualcpp | msvcmsys)
419      # This compiler won't grok `-c -o', but also, the minuso test has
420      # not run yet.  These depmodes are late enough in the game, and
421      # so weak that their functioning should not be impacted.
422      am__obj=conftest.${OBJEXT-o}
423      am__minus_obj=
424      ;;
425    none) break ;;
426    esac
427    if depmode=$depmode \
428       source=sub/conftest.c object=$am__obj \
429       depfile=sub/conftest.Po tmpdepfile=sub/conftest.TPo \
430       $SHELL ./depcomp $depcc -c $am__minus_obj sub/conftest.c \
431         >/dev/null 2>conftest.err &&
432       grep sub/conftst1.h sub/conftest.Po > /dev/null 2>&1 &&
433       grep sub/conftst6.h sub/conftest.Po > /dev/null 2>&1 &&
434       grep $am__obj sub/conftest.Po > /dev/null 2>&1 &&
435       ${MAKE-make} -s -f confmf > /dev/null 2>&1; then
436      # icc doesn't choke on unknown options, it will just issue warnings
437      # or remarks (even with -Werror).  So we grep stderr for any message
438      # that says an option was ignored or not supported.
439      # When given -MP, icc 7.0 and 7.1 complain thusly:
440      #   icc: Command line warning: ignoring option '-M'; no argument required
441      # The diagnosis changed in icc 8.0:
442      #   icc: Command line remark: option '-MP' not supported
443      if (grep 'ignoring option' conftest.err ||
444          grep 'not supported' conftest.err) >/dev/null 2>&1; then :; else
445        am_cv_$1_dependencies_compiler_type=$depmode
446        break
447      fi
448    fi
449  done
450
451  cd ..
452  rm -rf conftest.dir
453else
454  am_cv_$1_dependencies_compiler_type=none
455fi
456])
457AC_SUBST([$1DEPMODE], [depmode=$am_cv_$1_dependencies_compiler_type])
458AM_CONDITIONAL([am__fastdep$1], [
459  test "x$enable_dependency_tracking" != xno \
460  && test "$am_cv_$1_dependencies_compiler_type" = gcc3])
461])
462
463
464# AM_SET_DEPDIR
465# -------------
466# Choose a directory name for dependency files.
467# This macro is AC_REQUIREd in _AM_DEPENDENCIES
468AC_DEFUN([AM_SET_DEPDIR],
469[AC_REQUIRE([AM_SET_LEADING_DOT])dnl
470AC_SUBST([DEPDIR], ["${am__leading_dot}deps"])dnl
471])
472
473
474# AM_DEP_TRACK
475# ------------
476AC_DEFUN([AM_DEP_TRACK],
477[AC_ARG_ENABLE(dependency-tracking,
478[  --disable-dependency-tracking  speeds up one-time build
479  --enable-dependency-tracking   do not reject slow dependency extractors])
480if test "x$enable_dependency_tracking" != xno; then
481  am_depcomp="$ac_aux_dir/depcomp"
482  AMDEPBACKSLASH='\'
483fi
484AM_CONDITIONAL([AMDEP], [test "x$enable_dependency_tracking" != xno])
485AC_SUBST([AMDEPBACKSLASH])dnl
486_AM_SUBST_NOTMAKE([AMDEPBACKSLASH])dnl
487])
488
489# Generate code to set up dependency tracking.              -*- Autoconf -*-
490
491# Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2008
492# Free Software Foundation, Inc.
493#
494# This file is free software; the Free Software Foundation
495# gives unlimited permission to copy and/or distribute it,
496# with or without modifications, as long as this notice is preserved.
497
498#serial 5
499
500# _AM_OUTPUT_DEPENDENCY_COMMANDS
501# ------------------------------
502AC_DEFUN([_AM_OUTPUT_DEPENDENCY_COMMANDS],
503[{
504  # Autoconf 2.62 quotes --file arguments for eval, but not when files
505  # are listed without --file.  Let's play safe and only enable the eval
506  # if we detect the quoting.
507  case $CONFIG_FILES in
508  *\'*) eval set x "$CONFIG_FILES" ;;
509  *)   set x $CONFIG_FILES ;;
510  esac
511  shift
512  for mf
513  do
514    # Strip MF so we end up with the name of the file.
515    mf=`echo "$mf" | sed -e 's/:.*$//'`
516    # Check whether this is an Automake generated Makefile or not.
517    # We used to match only the files named `Makefile.in', but
518    # some people rename them; so instead we look at the file content.
519    # Grep'ing the first line is not enough: some people post-process
520    # each Makefile.in and add a new line on top of each file to say so.
521    # Grep'ing the whole file is not good either: AIX grep has a line
522    # limit of 2048, but all sed's we know have understand at least 4000.
523    if sed -n 's,^#.*generated by automake.*,X,p' "$mf" | grep X >/dev/null 2>&1; then
524      dirpart=`AS_DIRNAME("$mf")`
525    else
526      continue
527    fi
528    # Extract the definition of DEPDIR, am__include, and am__quote
529    # from the Makefile without running `make'.
530    DEPDIR=`sed -n 's/^DEPDIR = //p' < "$mf"`
531    test -z "$DEPDIR" && continue
532    am__include=`sed -n 's/^am__include = //p' < "$mf"`
533    test -z "am__include" && continue
534    am__quote=`sed -n 's/^am__quote = //p' < "$mf"`
535    # When using ansi2knr, U may be empty or an underscore; expand it
536    U=`sed -n 's/^U = //p' < "$mf"`
537    # Find all dependency output files, they are included files with
538    # $(DEPDIR) in their names.  We invoke sed twice because it is the
539    # simplest approach to changing $(DEPDIR) to its actual value in the
540    # expansion.
541    for file in `sed -n "
542      s/^$am__include $am__quote\(.*(DEPDIR).*\)$am__quote"'$/\1/p' <"$mf" | \
543	 sed -e 's/\$(DEPDIR)/'"$DEPDIR"'/g' -e 's/\$U/'"$U"'/g'`; do
544      # Make sure the directory exists.
545      test -f "$dirpart/$file" && continue
546      fdir=`AS_DIRNAME(["$file"])`
547      AS_MKDIR_P([$dirpart/$fdir])
548      # echo "creating $dirpart/$file"
549      echo '# dummy' > "$dirpart/$file"
550    done
551  done
552}
553])# _AM_OUTPUT_DEPENDENCY_COMMANDS
554
555
556# AM_OUTPUT_DEPENDENCY_COMMANDS
557# -----------------------------
558# This macro should only be invoked once -- use via AC_REQUIRE.
559#
560# This code is only required when automatic dependency tracking
561# is enabled.  FIXME.  This creates each `.P' file that we will
562# need in order to bootstrap the dependency handling code.
563AC_DEFUN([AM_OUTPUT_DEPENDENCY_COMMANDS],
564[AC_CONFIG_COMMANDS([depfiles],
565     [test x"$AMDEP_TRUE" != x"" || _AM_OUTPUT_DEPENDENCY_COMMANDS],
566     [AMDEP_TRUE="$AMDEP_TRUE" ac_aux_dir="$ac_aux_dir"])
567])
568
569# Copyright (C) 1996, 1997, 2000, 2001, 2003, 2005
570# Free Software Foundation, Inc.
571#
572# This file is free software; the Free Software Foundation
573# gives unlimited permission to copy and/or distribute it,
574# with or without modifications, as long as this notice is preserved.
575
576# serial 8
577
578# AM_CONFIG_HEADER is obsolete.  It has been replaced by AC_CONFIG_HEADERS.
579AU_DEFUN([AM_CONFIG_HEADER], [AC_CONFIG_HEADERS($@)])
580
581# Do all the work for Automake.                             -*- Autoconf -*-
582
583# Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004,
584# 2005, 2006, 2008, 2009 Free Software Foundation, Inc.
585#
586# This file is free software; the Free Software Foundation
587# gives unlimited permission to copy and/or distribute it,
588# with or without modifications, as long as this notice is preserved.
589
590# serial 16
591
592# This macro actually does too much.  Some checks are only needed if
593# your package does certain things.  But this isn't really a big deal.
594
595# AM_INIT_AUTOMAKE(PACKAGE, VERSION, [NO-DEFINE])
596# AM_INIT_AUTOMAKE([OPTIONS])
597# -----------------------------------------------
598# The call with PACKAGE and VERSION arguments is the old style
599# call (pre autoconf-2.50), which is being phased out.  PACKAGE
600# and VERSION should now be passed to AC_INIT and removed from
601# the call to AM_INIT_AUTOMAKE.
602# We support both call styles for the transition.  After
603# the next Automake release, Autoconf can make the AC_INIT
604# arguments mandatory, and then we can depend on a new Autoconf
605# release and drop the old call support.
606AC_DEFUN([AM_INIT_AUTOMAKE],
607[AC_PREREQ([2.62])dnl
608dnl Autoconf wants to disallow AM_ names.  We explicitly allow
609dnl the ones we care about.
610m4_pattern_allow([^AM_[A-Z]+FLAGS$])dnl
611AC_REQUIRE([AM_SET_CURRENT_AUTOMAKE_VERSION])dnl
612AC_REQUIRE([AC_PROG_INSTALL])dnl
613if test "`cd $srcdir && pwd`" != "`pwd`"; then
614  # Use -I$(srcdir) only when $(srcdir) != ., so that make's output
615  # is not polluted with repeated "-I."
616  AC_SUBST([am__isrc], [' -I$(srcdir)'])_AM_SUBST_NOTMAKE([am__isrc])dnl
617  # test to see if srcdir already configured
618  if test -f $srcdir/config.status; then
619    AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
620  fi
621fi
622
623# test whether we have cygpath
624if test -z "$CYGPATH_W"; then
625  if (cygpath --version) >/dev/null 2>/dev/null; then
626    CYGPATH_W='cygpath -w'
627  else
628    CYGPATH_W=echo
629  fi
630fi
631AC_SUBST([CYGPATH_W])
632
633# Define the identity of the package.
634dnl Distinguish between old-style and new-style calls.
635m4_ifval([$2],
636[m4_ifval([$3], [_AM_SET_OPTION([no-define])])dnl
637 AC_SUBST([PACKAGE], [$1])dnl
638 AC_SUBST([VERSION], [$2])],
639[_AM_SET_OPTIONS([$1])dnl
640dnl Diagnose old-style AC_INIT with new-style AM_AUTOMAKE_INIT.
641m4_if(m4_ifdef([AC_PACKAGE_NAME], 1)m4_ifdef([AC_PACKAGE_VERSION], 1), 11,,
642  [m4_fatal([AC_INIT should be called with package and version arguments])])dnl
643 AC_SUBST([PACKAGE], ['AC_PACKAGE_TARNAME'])dnl
644 AC_SUBST([VERSION], ['AC_PACKAGE_VERSION'])])dnl
645
646_AM_IF_OPTION([no-define],,
647[AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE", [Name of package])
648 AC_DEFINE_UNQUOTED(VERSION, "$VERSION", [Version number of package])])dnl
649
650# Some tools Automake needs.
651AC_REQUIRE([AM_SANITY_CHECK])dnl
652AC_REQUIRE([AC_ARG_PROGRAM])dnl
653AM_MISSING_PROG(ACLOCAL, aclocal-${am__api_version})
654AM_MISSING_PROG(AUTOCONF, autoconf)
655AM_MISSING_PROG(AUTOMAKE, automake-${am__api_version})
656AM_MISSING_PROG(AUTOHEADER, autoheader)
657AM_MISSING_PROG(MAKEINFO, makeinfo)
658AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
659AC_REQUIRE([AM_PROG_INSTALL_STRIP])dnl
660AC_REQUIRE([AM_PROG_MKDIR_P])dnl
661# We need awk for the "check" target.  The system "awk" is bad on
662# some platforms.
663AC_REQUIRE([AC_PROG_AWK])dnl
664AC_REQUIRE([AC_PROG_MAKE_SET])dnl
665AC_REQUIRE([AM_SET_LEADING_DOT])dnl
666_AM_IF_OPTION([tar-ustar], [_AM_PROG_TAR([ustar])],
667	      [_AM_IF_OPTION([tar-pax], [_AM_PROG_TAR([pax])],
668			     [_AM_PROG_TAR([v7])])])
669_AM_IF_OPTION([no-dependencies],,
670[AC_PROVIDE_IFELSE([AC_PROG_CC],
671		  [_AM_DEPENDENCIES(CC)],
672		  [define([AC_PROG_CC],
673			  defn([AC_PROG_CC])[_AM_DEPENDENCIES(CC)])])dnl
674AC_PROVIDE_IFELSE([AC_PROG_CXX],
675		  [_AM_DEPENDENCIES(CXX)],
676		  [define([AC_PROG_CXX],
677			  defn([AC_PROG_CXX])[_AM_DEPENDENCIES(CXX)])])dnl
678AC_PROVIDE_IFELSE([AC_PROG_OBJC],
679		  [_AM_DEPENDENCIES(OBJC)],
680		  [define([AC_PROG_OBJC],
681			  defn([AC_PROG_OBJC])[_AM_DEPENDENCIES(OBJC)])])dnl
682])
683_AM_IF_OPTION([silent-rules], [AC_REQUIRE([AM_SILENT_RULES])])dnl
684dnl The `parallel-tests' driver may need to know about EXEEXT, so add the
685dnl `am__EXEEXT' conditional if _AM_COMPILER_EXEEXT was seen.  This macro
686dnl is hooked onto _AC_COMPILER_EXEEXT early, see below.
687AC_CONFIG_COMMANDS_PRE(dnl
688[m4_provide_if([_AM_COMPILER_EXEEXT],
689  [AM_CONDITIONAL([am__EXEEXT], [test -n "$EXEEXT"])])])dnl
690])
691
692dnl Hook into `_AC_COMPILER_EXEEXT' early to learn its expansion.  Do not
693dnl add the conditional right here, as _AC_COMPILER_EXEEXT may be further
694dnl mangled by Autoconf and run in a shell conditional statement.
695m4_define([_AC_COMPILER_EXEEXT],
696m4_defn([_AC_COMPILER_EXEEXT])[m4_provide([_AM_COMPILER_EXEEXT])])
697
698
699# When config.status generates a header, we must update the stamp-h file.
700# This file resides in the same directory as the config header
701# that is generated.  The stamp files are numbered to have different names.
702
703# Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the
704# loop where config.status creates the headers, so we can generate
705# our stamp files there.
706AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK],
707[# Compute $1's index in $config_headers.
708_am_arg=$1
709_am_stamp_count=1
710for _am_header in $config_headers :; do
711  case $_am_header in
712    $_am_arg | $_am_arg:* )
713      break ;;
714    * )
715      _am_stamp_count=`expr $_am_stamp_count + 1` ;;
716  esac
717done
718echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
719
720# Copyright (C) 2001, 2003, 2005, 2008  Free Software Foundation, Inc.
721#
722# This file is free software; the Free Software Foundation
723# gives unlimited permission to copy and/or distribute it,
724# with or without modifications, as long as this notice is preserved.
725
726# AM_PROG_INSTALL_SH
727# ------------------
728# Define $install_sh.
729AC_DEFUN([AM_PROG_INSTALL_SH],
730[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
731if test x"${install_sh}" != xset; then
732  case $am_aux_dir in
733  *\ * | *\	*)
734    install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
735  *)
736    install_sh="\${SHELL} $am_aux_dir/install-sh"
737  esac
738fi
739AC_SUBST(install_sh)])
740
741# Copyright (C) 2003, 2005  Free Software Foundation, Inc.
742#
743# This file is free software; the Free Software Foundation
744# gives unlimited permission to copy and/or distribute it,
745# with or without modifications, as long as this notice is preserved.
746
747# serial 2
748
749# Check whether the underlying file-system supports filenames
750# with a leading dot.  For instance MS-DOS doesn't.
751AC_DEFUN([AM_SET_LEADING_DOT],
752[rm -rf .tst 2>/dev/null
753mkdir .tst 2>/dev/null
754if test -d .tst; then
755  am__leading_dot=.
756else
757  am__leading_dot=_
758fi
759rmdir .tst 2>/dev/null
760AC_SUBST([am__leading_dot])])
761
762# Check to see how 'make' treats includes.	            -*- Autoconf -*-
763
764# Copyright (C) 2001, 2002, 2003, 2005, 2009  Free Software Foundation, Inc.
765#
766# This file is free software; the Free Software Foundation
767# gives unlimited permission to copy and/or distribute it,
768# with or without modifications, as long as this notice is preserved.
769
770# serial 4
771
772# AM_MAKE_INCLUDE()
773# -----------------
774# Check to see how make treats includes.
775AC_DEFUN([AM_MAKE_INCLUDE],
776[am_make=${MAKE-make}
777cat > confinc << 'END'
778am__doit:
779	@echo this is the am__doit target
780.PHONY: am__doit
781END
782# If we don't find an include directive, just comment out the code.
783AC_MSG_CHECKING([for style of include used by $am_make])
784am__include="#"
785am__quote=
786_am_result=none
787# First try GNU make style include.
788echo "include confinc" > confmf
789# Ignore all kinds of additional output from `make'.
790case `$am_make -s -f confmf 2> /dev/null` in #(
791*the\ am__doit\ target*)
792  am__include=include
793  am__quote=
794  _am_result=GNU
795  ;;
796esac
797# Now try BSD make style include.
798if test "$am__include" = "#"; then
799   echo '.include "confinc"' > confmf
800   case `$am_make -s -f confmf 2> /dev/null` in #(
801   *the\ am__doit\ target*)
802     am__include=.include
803     am__quote="\""
804     _am_result=BSD
805     ;;
806   esac
807fi
808AC_SUBST([am__include])
809AC_SUBST([am__quote])
810AC_MSG_RESULT([$_am_result])
811rm -f confinc confmf
812])
813
814# Fake the existence of programs that GNU maintainers use.  -*- Autoconf -*-
815
816# Copyright (C) 1997, 1999, 2000, 2001, 2003, 2004, 2005, 2008
817# Free Software Foundation, Inc.
818#
819# This file is free software; the Free Software Foundation
820# gives unlimited permission to copy and/or distribute it,
821# with or without modifications, as long as this notice is preserved.
822
823# serial 6
824
825# AM_MISSING_PROG(NAME, PROGRAM)
826# ------------------------------
827AC_DEFUN([AM_MISSING_PROG],
828[AC_REQUIRE([AM_MISSING_HAS_RUN])
829$1=${$1-"${am_missing_run}$2"}
830AC_SUBST($1)])
831
832
833# AM_MISSING_HAS_RUN
834# ------------------
835# Define MISSING if not defined so far and test if it supports --run.
836# If it does, set am_missing_run to use it, otherwise, to nothing.
837AC_DEFUN([AM_MISSING_HAS_RUN],
838[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
839AC_REQUIRE_AUX_FILE([missing])dnl
840if test x"${MISSING+set}" != xset; then
841  case $am_aux_dir in
842  *\ * | *\	*)
843    MISSING="\${SHELL} \"$am_aux_dir/missing\"" ;;
844  *)
845    MISSING="\${SHELL} $am_aux_dir/missing" ;;
846  esac
847fi
848# Use eval to expand $SHELL
849if eval "$MISSING --run true"; then
850  am_missing_run="$MISSING --run "
851else
852  am_missing_run=
853  AC_MSG_WARN([`missing' script is too old or missing])
854fi
855])
856
857# Copyright (C) 2003, 2004, 2005, 2006  Free Software Foundation, Inc.
858#
859# This file is free software; the Free Software Foundation
860# gives unlimited permission to copy and/or distribute it,
861# with or without modifications, as long as this notice is preserved.
862
863# AM_PROG_MKDIR_P
864# ---------------
865# Check for `mkdir -p'.
866AC_DEFUN([AM_PROG_MKDIR_P],
867[AC_PREREQ([2.60])dnl
868AC_REQUIRE([AC_PROG_MKDIR_P])dnl
869dnl Automake 1.8 to 1.9.6 used to define mkdir_p.  We now use MKDIR_P,
870dnl while keeping a definition of mkdir_p for backward compatibility.
871dnl @MKDIR_P@ is magic: AC_OUTPUT adjusts its value for each Makefile.
872dnl However we cannot define mkdir_p as $(MKDIR_P) for the sake of
873dnl Makefile.ins that do not define MKDIR_P, so we do our own
874dnl adjustment using top_builddir (which is defined more often than
875dnl MKDIR_P).
876AC_SUBST([mkdir_p], ["$MKDIR_P"])dnl
877case $mkdir_p in
878  [[\\/$]]* | ?:[[\\/]]*) ;;
879  */*) mkdir_p="\$(top_builddir)/$mkdir_p" ;;
880esac
881])
882
883# Helper functions for option handling.                     -*- Autoconf -*-
884
885# Copyright (C) 2001, 2002, 2003, 2005, 2008  Free Software Foundation, Inc.
886#
887# This file is free software; the Free Software Foundation
888# gives unlimited permission to copy and/or distribute it,
889# with or without modifications, as long as this notice is preserved.
890
891# serial 4
892
893# _AM_MANGLE_OPTION(NAME)
894# -----------------------
895AC_DEFUN([_AM_MANGLE_OPTION],
896[[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
897
898# _AM_SET_OPTION(NAME)
899# ------------------------------
900# Set option NAME.  Presently that only means defining a flag for this option.
901AC_DEFUN([_AM_SET_OPTION],
902[m4_define(_AM_MANGLE_OPTION([$1]), 1)])
903
904# _AM_SET_OPTIONS(OPTIONS)
905# ----------------------------------
906# OPTIONS is a space-separated list of Automake options.
907AC_DEFUN([_AM_SET_OPTIONS],
908[m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
909
910# _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
911# -------------------------------------------
912# Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
913AC_DEFUN([_AM_IF_OPTION],
914[m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
915
916# Check to make sure that the build environment is sane.    -*- Autoconf -*-
917
918# Copyright (C) 1996, 1997, 2000, 2001, 2003, 2005, 2008
919# Free Software Foundation, Inc.
920#
921# This file is free software; the Free Software Foundation
922# gives unlimited permission to copy and/or distribute it,
923# with or without modifications, as long as this notice is preserved.
924
925# serial 5
926
927# AM_SANITY_CHECK
928# ---------------
929AC_DEFUN([AM_SANITY_CHECK],
930[AC_MSG_CHECKING([whether build environment is sane])
931# Just in case
932sleep 1
933echo timestamp > conftest.file
934# Reject unsafe characters in $srcdir or the absolute working directory
935# name.  Accept space and tab only in the latter.
936am_lf='
937'
938case `pwd` in
939  *[[\\\"\#\$\&\'\`$am_lf]]*)
940    AC_MSG_ERROR([unsafe absolute working directory name]);;
941esac
942case $srcdir in
943  *[[\\\"\#\$\&\'\`$am_lf\ \	]]*)
944    AC_MSG_ERROR([unsafe srcdir value: `$srcdir']);;
945esac
946
947# Do `set' in a subshell so we don't clobber the current shell's
948# arguments.  Must try -L first in case configure is actually a
949# symlink; some systems play weird games with the mod time of symlinks
950# (eg FreeBSD returns the mod time of the symlink's containing
951# directory).
952if (
953   set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
954   if test "$[*]" = "X"; then
955      # -L didn't work.
956      set X `ls -t "$srcdir/configure" conftest.file`
957   fi
958   rm -f conftest.file
959   if test "$[*]" != "X $srcdir/configure conftest.file" \
960      && test "$[*]" != "X conftest.file $srcdir/configure"; then
961
962      # If neither matched, then we have a broken ls.  This can happen
963      # if, for instance, CONFIG_SHELL is bash and it inherits a
964      # broken ls alias from the environment.  This has actually
965      # happened.  Such a system could not be considered "sane".
966      AC_MSG_ERROR([ls -t appears to fail.  Make sure there is not a broken
967alias in your environment])
968   fi
969
970   test "$[2]" = conftest.file
971   )
972then
973   # Ok.
974   :
975else
976   AC_MSG_ERROR([newly created file is older than distributed files!
977Check your system clock])
978fi
979AC_MSG_RESULT(yes)])
980
981# Copyright (C) 2001, 2003, 2005  Free Software Foundation, Inc.
982#
983# This file is free software; the Free Software Foundation
984# gives unlimited permission to copy and/or distribute it,
985# with or without modifications, as long as this notice is preserved.
986
987# AM_PROG_INSTALL_STRIP
988# ---------------------
989# One issue with vendor `install' (even GNU) is that you can't
990# specify the program used to strip binaries.  This is especially
991# annoying in cross-compiling environments, where the build's strip
992# is unlikely to handle the host's binaries.
993# Fortunately install-sh will honor a STRIPPROG variable, so we
994# always use install-sh in `make install-strip', and initialize
995# STRIPPROG with the value of the STRIP variable (set by the user).
996AC_DEFUN([AM_PROG_INSTALL_STRIP],
997[AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
998# Installed binaries are usually stripped using `strip' when the user
999# run `make install-strip'.  However `strip' might not be the right
1000# tool to use in cross-compilation environments, therefore Automake
1001# will honor the `STRIP' environment variable to overrule this program.
1002dnl Don't test for $cross_compiling = yes, because it might be `maybe'.
1003if test "$cross_compiling" != no; then
1004  AC_CHECK_TOOL([STRIP], [strip], :)
1005fi
1006INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
1007AC_SUBST([INSTALL_STRIP_PROGRAM])])
1008
1009# Copyright (C) 2006, 2008  Free Software Foundation, Inc.
1010#
1011# This file is free software; the Free Software Foundation
1012# gives unlimited permission to copy and/or distribute it,
1013# with or without modifications, as long as this notice is preserved.
1014
1015# serial 2
1016
1017# _AM_SUBST_NOTMAKE(VARIABLE)
1018# ---------------------------
1019# Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
1020# This macro is traced by Automake.
1021AC_DEFUN([_AM_SUBST_NOTMAKE])
1022
1023# AM_SUBST_NOTMAKE(VARIABLE)
1024# ---------------------------
1025# Public sister of _AM_SUBST_NOTMAKE.
1026AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
1027
1028# Check how to create a tarball.                            -*- Autoconf -*-
1029
1030# Copyright (C) 2004, 2005  Free Software Foundation, Inc.
1031#
1032# This file is free software; the Free Software Foundation
1033# gives unlimited permission to copy and/or distribute it,
1034# with or without modifications, as long as this notice is preserved.
1035
1036# serial 2
1037
1038# _AM_PROG_TAR(FORMAT)
1039# --------------------
1040# Check how to create a tarball in format FORMAT.
1041# FORMAT should be one of `v7', `ustar', or `pax'.
1042#
1043# Substitute a variable $(am__tar) that is a command
1044# writing to stdout a FORMAT-tarball containing the directory
1045# $tardir.
1046#     tardir=directory && $(am__tar) > result.tar
1047#
1048# Substitute a variable $(am__untar) that extract such
1049# a tarball read from stdin.
1050#     $(am__untar) < result.tar
1051AC_DEFUN([_AM_PROG_TAR],
1052[# Always define AMTAR for backward compatibility.
1053AM_MISSING_PROG([AMTAR], [tar])
1054m4_if([$1], [v7],
1055     [am__tar='${AMTAR} chof - "$$tardir"'; am__untar='${AMTAR} xf -'],
1056     [m4_case([$1], [ustar],, [pax],,
1057              [m4_fatal([Unknown tar format])])
1058AC_MSG_CHECKING([how to create a $1 tar archive])
1059# Loop over all known methods to create a tar archive until one works.
1060_am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
1061_am_tools=${am_cv_prog_tar_$1-$_am_tools}
1062# Do not fold the above two line into one, because Tru64 sh and
1063# Solaris sh will not grok spaces in the rhs of `-'.
1064for _am_tool in $_am_tools
1065do
1066  case $_am_tool in
1067  gnutar)
1068    for _am_tar in tar gnutar gtar;
1069    do
1070      AM_RUN_LOG([$_am_tar --version]) && break
1071    done
1072    am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
1073    am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
1074    am__untar="$_am_tar -xf -"
1075    ;;
1076  plaintar)
1077    # Must skip GNU tar: if it does not support --format= it doesn't create
1078    # ustar tarball either.
1079    (tar --version) >/dev/null 2>&1 && continue
1080    am__tar='tar chf - "$$tardir"'
1081    am__tar_='tar chf - "$tardir"'
1082    am__untar='tar xf -'
1083    ;;
1084  pax)
1085    am__tar='pax -L -x $1 -w "$$tardir"'
1086    am__tar_='pax -L -x $1 -w "$tardir"'
1087    am__untar='pax -r'
1088    ;;
1089  cpio)
1090    am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
1091    am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
1092    am__untar='cpio -i -H $1 -d'
1093    ;;
1094  none)
1095    am__tar=false
1096    am__tar_=false
1097    am__untar=false
1098    ;;
1099  esac
1100
1101  # If the value was cached, stop now.  We just wanted to have am__tar
1102  # and am__untar set.
1103  test -n "${am_cv_prog_tar_$1}" && break
1104
1105  # tar/untar a dummy directory, and stop if the command works
1106  rm -rf conftest.dir
1107  mkdir conftest.dir
1108  echo GrepMe > conftest.dir/file
1109  AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
1110  rm -rf conftest.dir
1111  if test -s conftest.tar; then
1112    AM_RUN_LOG([$am__untar <conftest.tar])
1113    grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
1114  fi
1115done
1116rm -rf conftest.dir
1117
1118AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
1119AC_MSG_RESULT([$am_cv_prog_tar_$1])])
1120AC_SUBST([am__tar])
1121AC_SUBST([am__untar])
1122]) # _AM_PROG_TAR
1123
1124