1# generated automatically by aclocal 1.16.1 -*- Autoconf -*-
2
3# Copyright (C) 1996-2018 Free Software Foundation, Inc.
4
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_CONFIG_MACRO_DIRS], [m4_defun([_AM_CONFIG_MACRO_DIRS], [])m4_defun([AC_CONFIG_MACRO_DIRS], [_AM_CONFIG_MACRO_DIRS($@)])])
15m4_ifndef([AC_AUTOCONF_VERSION],
16  [m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl
17m4_if(m4_defn([AC_AUTOCONF_VERSION]), [2.69],,
18[m4_warning([this file was generated for autoconf 2.69.
19You have another version of autoconf.  It may work, but is not guaranteed to.
20If you have problems, you may need to regenerate the build system entirely.
21To do so, use the procedure documented by the package, typically 'autoreconf'.])])
22
23# Copyright (C) 2002-2018 Free Software Foundation, Inc.
24#
25# This file is free software; the Free Software Foundation
26# gives unlimited permission to copy and/or distribute it,
27# with or without modifications, as long as this notice is preserved.
28
29# AM_AUTOMAKE_VERSION(VERSION)
30# ----------------------------
31# Automake X.Y traces this macro to ensure aclocal.m4 has been
32# generated from the m4 files accompanying Automake X.Y.
33# (This private macro should not be called outside this file.)
34AC_DEFUN([AM_AUTOMAKE_VERSION],
35[am__api_version='1.16'
36dnl Some users find AM_AUTOMAKE_VERSION and mistake it for a way to
37dnl require some minimum version.  Point them to the right macro.
38m4_if([$1], [1.16.1], [],
39      [AC_FATAL([Do not call $0, use AM_INIT_AUTOMAKE([$1]).])])dnl
40])
41
42# _AM_AUTOCONF_VERSION(VERSION)
43# -----------------------------
44# aclocal traces this macro to find the Autoconf version.
45# This is a private macro too.  Using m4_define simplifies
46# the logic in aclocal, which can simply ignore this definition.
47m4_define([_AM_AUTOCONF_VERSION], [])
48
49# AM_SET_CURRENT_AUTOMAKE_VERSION
50# -------------------------------
51# Call AM_AUTOMAKE_VERSION and AM_AUTOMAKE_VERSION so they can be traced.
52# This function is AC_REQUIREd by AM_INIT_AUTOMAKE.
53AC_DEFUN([AM_SET_CURRENT_AUTOMAKE_VERSION],
54[AM_AUTOMAKE_VERSION([1.16.1])dnl
55m4_ifndef([AC_AUTOCONF_VERSION],
56  [m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl
57_AM_AUTOCONF_VERSION(m4_defn([AC_AUTOCONF_VERSION]))])
58
59# AM_AUX_DIR_EXPAND                                         -*- Autoconf -*-
60
61# Copyright (C) 2001-2018 Free Software Foundation, Inc.
62#
63# This file is free software; the Free Software Foundation
64# gives unlimited permission to copy and/or distribute it,
65# with or without modifications, as long as this notice is preserved.
66
67# For projects using AC_CONFIG_AUX_DIR([foo]), Autoconf sets
68# $ac_aux_dir to '$srcdir/foo'.  In other projects, it is set to
69# '$srcdir', '$srcdir/..', or '$srcdir/../..'.
70#
71# Of course, Automake must honor this variable whenever it calls a
72# tool from the auxiliary directory.  The problem is that $srcdir (and
73# therefore $ac_aux_dir as well) can be either absolute or relative,
74# depending on how configure is run.  This is pretty annoying, since
75# it makes $ac_aux_dir quite unusable in subdirectories: in the top
76# source directory, any form will work fine, but in subdirectories a
77# relative path needs to be adjusted first.
78#
79# $ac_aux_dir/missing
80#    fails when called from a subdirectory if $ac_aux_dir is relative
81# $top_srcdir/$ac_aux_dir/missing
82#    fails if $ac_aux_dir is absolute,
83#    fails when called from a subdirectory in a VPATH build with
84#          a relative $ac_aux_dir
85#
86# The reason of the latter failure is that $top_srcdir and $ac_aux_dir
87# are both prefixed by $srcdir.  In an in-source build this is usually
88# harmless because $srcdir is '.', but things will broke when you
89# start a VPATH build or use an absolute $srcdir.
90#
91# So we could use something similar to $top_srcdir/$ac_aux_dir/missing,
92# iff we strip the leading $srcdir from $ac_aux_dir.  That would be:
93#   am_aux_dir='\$(top_srcdir)/'`expr "$ac_aux_dir" : "$srcdir//*\(.*\)"`
94# and then we would define $MISSING as
95#   MISSING="\${SHELL} $am_aux_dir/missing"
96# This will work as long as MISSING is not called from configure, because
97# unfortunately $(top_srcdir) has no meaning in configure.
98# However there are other variables, like CC, which are often used in
99# configure, and could therefore not use this "fixed" $ac_aux_dir.
100#
101# Another solution, used here, is to always expand $ac_aux_dir to an
102# absolute PATH.  The drawback is that using absolute paths prevent a
103# configured tree to be moved without reconfiguration.
104
105AC_DEFUN([AM_AUX_DIR_EXPAND],
106[AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
107# Expand $ac_aux_dir to an absolute path.
108am_aux_dir=`cd "$ac_aux_dir" && pwd`
109])
110
111# AM_CONDITIONAL                                            -*- Autoconf -*-
112
113# Copyright (C) 1997-2018 Free Software Foundation, Inc.
114#
115# This file is free software; the Free Software Foundation
116# gives unlimited permission to copy and/or distribute it,
117# with or without modifications, as long as this notice is preserved.
118
119# AM_CONDITIONAL(NAME, SHELL-CONDITION)
120# -------------------------------------
121# Define a conditional.
122AC_DEFUN([AM_CONDITIONAL],
123[AC_PREREQ([2.52])dnl
124 m4_if([$1], [TRUE],  [AC_FATAL([$0: invalid condition: $1])],
125       [$1], [FALSE], [AC_FATAL([$0: invalid condition: $1])])dnl
126AC_SUBST([$1_TRUE])dnl
127AC_SUBST([$1_FALSE])dnl
128_AM_SUBST_NOTMAKE([$1_TRUE])dnl
129_AM_SUBST_NOTMAKE([$1_FALSE])dnl
130m4_define([_AM_COND_VALUE_$1], [$2])dnl
131if $2; then
132  $1_TRUE=
133  $1_FALSE='#'
134else
135  $1_TRUE='#'
136  $1_FALSE=
137fi
138AC_CONFIG_COMMANDS_PRE(
139[if test -z "${$1_TRUE}" && test -z "${$1_FALSE}"; then
140  AC_MSG_ERROR([[conditional "$1" was never defined.
141Usually this means the macro was only invoked conditionally.]])
142fi])])
143
144# Copyright (C) 1999-2018 Free Software Foundation, Inc.
145#
146# This file is free software; the Free Software Foundation
147# gives unlimited permission to copy and/or distribute it,
148# with or without modifications, as long as this notice is preserved.
149
150
151# There are a few dirty hacks below to avoid letting 'AC_PROG_CC' be
152# written in clear, in which case automake, when reading aclocal.m4,
153# will think it sees a *use*, and therefore will trigger all it's
154# C support machinery.  Also note that it means that autoscan, seeing
155# CC etc. in the Makefile, will ask for an AC_PROG_CC use...
156
157
158# _AM_DEPENDENCIES(NAME)
159# ----------------------
160# See how the compiler implements dependency checking.
161# NAME is "CC", "CXX", "OBJC", "OBJCXX", "UPC", or "GJC".
162# We try a few techniques and use that to set a single cache variable.
163#
164# We don't AC_REQUIRE the corresponding AC_PROG_CC since the latter was
165# modified to invoke _AM_DEPENDENCIES(CC); we would have a circular
166# dependency, and given that the user is not expected to run this macro,
167# just rely on AC_PROG_CC.
168AC_DEFUN([_AM_DEPENDENCIES],
169[AC_REQUIRE([AM_SET_DEPDIR])dnl
170AC_REQUIRE([AM_OUTPUT_DEPENDENCY_COMMANDS])dnl
171AC_REQUIRE([AM_MAKE_INCLUDE])dnl
172AC_REQUIRE([AM_DEP_TRACK])dnl
173
174m4_if([$1], [CC],   [depcc="$CC"   am_compiler_list=],
175      [$1], [CXX],  [depcc="$CXX"  am_compiler_list=],
176      [$1], [OBJC], [depcc="$OBJC" am_compiler_list='gcc3 gcc'],
177      [$1], [OBJCXX], [depcc="$OBJCXX" am_compiler_list='gcc3 gcc'],
178      [$1], [UPC],  [depcc="$UPC"  am_compiler_list=],
179      [$1], [GCJ],  [depcc="$GCJ"  am_compiler_list='gcc3 gcc'],
180                    [depcc="$$1"   am_compiler_list=])
181
182AC_CACHE_CHECK([dependency style of $depcc],
183               [am_cv_$1_dependencies_compiler_type],
184[if test -z "$AMDEP_TRUE" && test -f "$am_depcomp"; then
185  # We make a subdir and do the tests there.  Otherwise we can end up
186  # making bogus files that we don't know about and never remove.  For
187  # instance it was reported that on HP-UX the gcc test will end up
188  # making a dummy file named 'D' -- because '-MD' means "put the output
189  # in D".
190  rm -rf conftest.dir
191  mkdir conftest.dir
192  # Copy depcomp to subdir because otherwise we won't find it if we're
193  # using a relative directory.
194  cp "$am_depcomp" conftest.dir
195  cd conftest.dir
196  # We will build objects and dependencies in a subdirectory because
197  # it helps to detect inapplicable dependency modes.  For instance
198  # both Tru64's cc and ICC support -MD to output dependencies as a
199  # side effect of compilation, but ICC will put the dependencies in
200  # the current directory while Tru64 will put them in the object
201  # directory.
202  mkdir sub
203
204  am_cv_$1_dependencies_compiler_type=none
205  if test "$am_compiler_list" = ""; then
206     am_compiler_list=`sed -n ['s/^#*\([a-zA-Z0-9]*\))$/\1/p'] < ./depcomp`
207  fi
208  am__universal=false
209  m4_case([$1], [CC],
210    [case " $depcc " in #(
211     *\ -arch\ *\ -arch\ *) am__universal=true ;;
212     esac],
213    [CXX],
214    [case " $depcc " in #(
215     *\ -arch\ *\ -arch\ *) am__universal=true ;;
216     esac])
217
218  for depmode in $am_compiler_list; do
219    # Setup a source with many dependencies, because some compilers
220    # like to wrap large dependency lists on column 80 (with \), and
221    # we should not choose a depcomp mode which is confused by this.
222    #
223    # We need to recreate these files for each test, as the compiler may
224    # overwrite some of them when testing with obscure command lines.
225    # This happens at least with the AIX C compiler.
226    : > sub/conftest.c
227    for i in 1 2 3 4 5 6; do
228      echo '#include "conftst'$i'.h"' >> sub/conftest.c
229      # Using ": > sub/conftst$i.h" creates only sub/conftst1.h with
230      # Solaris 10 /bin/sh.
231      echo '/* dummy */' > sub/conftst$i.h
232    done
233    echo "${am__include} ${am__quote}sub/conftest.Po${am__quote}" > confmf
234
235    # We check with '-c' and '-o' for the sake of the "dashmstdout"
236    # mode.  It turns out that the SunPro C++ compiler does not properly
237    # handle '-M -o', and we need to detect this.  Also, some Intel
238    # versions had trouble with output in subdirs.
239    am__obj=sub/conftest.${OBJEXT-o}
240    am__minus_obj="-o $am__obj"
241    case $depmode in
242    gcc)
243      # This depmode causes a compiler race in universal mode.
244      test "$am__universal" = false || continue
245      ;;
246    nosideeffect)
247      # After this tag, mechanisms are not by side-effect, so they'll
248      # only be used when explicitly requested.
249      if test "x$enable_dependency_tracking" = xyes; then
250	continue
251      else
252	break
253      fi
254      ;;
255    msvc7 | msvc7msys | msvisualcpp | msvcmsys)
256      # This compiler won't grok '-c -o', but also, the minuso test has
257      # not run yet.  These depmodes are late enough in the game, and
258      # so weak that their functioning should not be impacted.
259      am__obj=conftest.${OBJEXT-o}
260      am__minus_obj=
261      ;;
262    none) break ;;
263    esac
264    if depmode=$depmode \
265       source=sub/conftest.c object=$am__obj \
266       depfile=sub/conftest.Po tmpdepfile=sub/conftest.TPo \
267       $SHELL ./depcomp $depcc -c $am__minus_obj sub/conftest.c \
268         >/dev/null 2>conftest.err &&
269       grep sub/conftst1.h sub/conftest.Po > /dev/null 2>&1 &&
270       grep sub/conftst6.h sub/conftest.Po > /dev/null 2>&1 &&
271       grep $am__obj sub/conftest.Po > /dev/null 2>&1 &&
272       ${MAKE-make} -s -f confmf > /dev/null 2>&1; then
273      # icc doesn't choke on unknown options, it will just issue warnings
274      # or remarks (even with -Werror).  So we grep stderr for any message
275      # that says an option was ignored or not supported.
276      # When given -MP, icc 7.0 and 7.1 complain thusly:
277      #   icc: Command line warning: ignoring option '-M'; no argument required
278      # The diagnosis changed in icc 8.0:
279      #   icc: Command line remark: option '-MP' not supported
280      if (grep 'ignoring option' conftest.err ||
281          grep 'not supported' conftest.err) >/dev/null 2>&1; then :; else
282        am_cv_$1_dependencies_compiler_type=$depmode
283        break
284      fi
285    fi
286  done
287
288  cd ..
289  rm -rf conftest.dir
290else
291  am_cv_$1_dependencies_compiler_type=none
292fi
293])
294AC_SUBST([$1DEPMODE], [depmode=$am_cv_$1_dependencies_compiler_type])
295AM_CONDITIONAL([am__fastdep$1], [
296  test "x$enable_dependency_tracking" != xno \
297  && test "$am_cv_$1_dependencies_compiler_type" = gcc3])
298])
299
300
301# AM_SET_DEPDIR
302# -------------
303# Choose a directory name for dependency files.
304# This macro is AC_REQUIREd in _AM_DEPENDENCIES.
305AC_DEFUN([AM_SET_DEPDIR],
306[AC_REQUIRE([AM_SET_LEADING_DOT])dnl
307AC_SUBST([DEPDIR], ["${am__leading_dot}deps"])dnl
308])
309
310
311# AM_DEP_TRACK
312# ------------
313AC_DEFUN([AM_DEP_TRACK],
314[AC_ARG_ENABLE([dependency-tracking], [dnl
315AS_HELP_STRING(
316  [--enable-dependency-tracking],
317  [do not reject slow dependency extractors])
318AS_HELP_STRING(
319  [--disable-dependency-tracking],
320  [speeds up one-time build])])
321if test "x$enable_dependency_tracking" != xno; then
322  am_depcomp="$ac_aux_dir/depcomp"
323  AMDEPBACKSLASH='\'
324  am__nodep='_no'
325fi
326AM_CONDITIONAL([AMDEP], [test "x$enable_dependency_tracking" != xno])
327AC_SUBST([AMDEPBACKSLASH])dnl
328_AM_SUBST_NOTMAKE([AMDEPBACKSLASH])dnl
329AC_SUBST([am__nodep])dnl
330_AM_SUBST_NOTMAKE([am__nodep])dnl
331])
332
333# Generate code to set up dependency tracking.              -*- Autoconf -*-
334
335# Copyright (C) 1999-2018 Free Software Foundation, Inc.
336#
337# This file is free software; the Free Software Foundation
338# gives unlimited permission to copy and/or distribute it,
339# with or without modifications, as long as this notice is preserved.
340
341# _AM_OUTPUT_DEPENDENCY_COMMANDS
342# ------------------------------
343AC_DEFUN([_AM_OUTPUT_DEPENDENCY_COMMANDS],
344[{
345  # Older Autoconf quotes --file arguments for eval, but not when files
346  # are listed without --file.  Let's play safe and only enable the eval
347  # if we detect the quoting.
348  # TODO: see whether this extra hack can be removed once we start
349  # requiring Autoconf 2.70 or later.
350  AS_CASE([$CONFIG_FILES],
351          [*\'*], [eval set x "$CONFIG_FILES"],
352          [*], [set x $CONFIG_FILES])
353  shift
354  # Used to flag and report bootstrapping failures.
355  am_rc=0
356  for am_mf
357  do
358    # Strip MF so we end up with the name of the file.
359    am_mf=`AS_ECHO(["$am_mf"]) | sed -e 's/:.*$//'`
360    # Check whether this is an Automake generated Makefile which includes
361    # dependency-tracking related rules and includes.
362    # Grep'ing the whole file directly is not great: AIX grep has a line
363    # limit of 2048, but all sed's we know have understand at least 4000.
364    sed -n 's,^am--depfiles:.*,X,p' "$am_mf" | grep X >/dev/null 2>&1 \
365      || continue
366    am_dirpart=`AS_DIRNAME(["$am_mf"])`
367    am_filepart=`AS_BASENAME(["$am_mf"])`
368    AM_RUN_LOG([cd "$am_dirpart" \
369      && sed -e '/# am--include-marker/d' "$am_filepart" \
370        | $MAKE -f - am--depfiles]) || am_rc=$?
371  done
372  if test $am_rc -ne 0; then
373    AC_MSG_FAILURE([Something went wrong bootstrapping makefile fragments
374    for automatic dependency tracking.  Try re-running configure with the
375    '--disable-dependency-tracking' option to at least be able to build
376    the package (albeit without support for automatic dependency tracking).])
377  fi
378  AS_UNSET([am_dirpart])
379  AS_UNSET([am_filepart])
380  AS_UNSET([am_mf])
381  AS_UNSET([am_rc])
382  rm -f conftest-deps.mk
383}
384])# _AM_OUTPUT_DEPENDENCY_COMMANDS
385
386
387# AM_OUTPUT_DEPENDENCY_COMMANDS
388# -----------------------------
389# This macro should only be invoked once -- use via AC_REQUIRE.
390#
391# This code is only required when automatic dependency tracking is enabled.
392# This creates each '.Po' and '.Plo' makefile fragment that we'll need in
393# order to bootstrap the dependency handling code.
394AC_DEFUN([AM_OUTPUT_DEPENDENCY_COMMANDS],
395[AC_CONFIG_COMMANDS([depfiles],
396     [test x"$AMDEP_TRUE" != x"" || _AM_OUTPUT_DEPENDENCY_COMMANDS],
397     [AMDEP_TRUE="$AMDEP_TRUE" MAKE="${MAKE-make}"])])
398
399# Do all the work for Automake.                             -*- Autoconf -*-
400
401# Copyright (C) 1996-2018 Free Software Foundation, Inc.
402#
403# This file is free software; the Free Software Foundation
404# gives unlimited permission to copy and/or distribute it,
405# with or without modifications, as long as this notice is preserved.
406
407# This macro actually does too much.  Some checks are only needed if
408# your package does certain things.  But this isn't really a big deal.
409
410dnl Redefine AC_PROG_CC to automatically invoke _AM_PROG_CC_C_O.
411m4_define([AC_PROG_CC],
412m4_defn([AC_PROG_CC])
413[_AM_PROG_CC_C_O
414])
415
416# AM_INIT_AUTOMAKE(PACKAGE, VERSION, [NO-DEFINE])
417# AM_INIT_AUTOMAKE([OPTIONS])
418# -----------------------------------------------
419# The call with PACKAGE and VERSION arguments is the old style
420# call (pre autoconf-2.50), which is being phased out.  PACKAGE
421# and VERSION should now be passed to AC_INIT and removed from
422# the call to AM_INIT_AUTOMAKE.
423# We support both call styles for the transition.  After
424# the next Automake release, Autoconf can make the AC_INIT
425# arguments mandatory, and then we can depend on a new Autoconf
426# release and drop the old call support.
427AC_DEFUN([AM_INIT_AUTOMAKE],
428[AC_PREREQ([2.65])dnl
429dnl Autoconf wants to disallow AM_ names.  We explicitly allow
430dnl the ones we care about.
431m4_pattern_allow([^AM_[A-Z]+FLAGS$])dnl
432AC_REQUIRE([AM_SET_CURRENT_AUTOMAKE_VERSION])dnl
433AC_REQUIRE([AC_PROG_INSTALL])dnl
434if test "`cd $srcdir && pwd`" != "`pwd`"; then
435  # Use -I$(srcdir) only when $(srcdir) != ., so that make's output
436  # is not polluted with repeated "-I."
437  AC_SUBST([am__isrc], [' -I$(srcdir)'])_AM_SUBST_NOTMAKE([am__isrc])dnl
438  # test to see if srcdir already configured
439  if test -f $srcdir/config.status; then
440    AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
441  fi
442fi
443
444# test whether we have cygpath
445if test -z "$CYGPATH_W"; then
446  if (cygpath --version) >/dev/null 2>/dev/null; then
447    CYGPATH_W='cygpath -w'
448  else
449    CYGPATH_W=echo
450  fi
451fi
452AC_SUBST([CYGPATH_W])
453
454# Define the identity of the package.
455dnl Distinguish between old-style and new-style calls.
456m4_ifval([$2],
457[AC_DIAGNOSE([obsolete],
458             [$0: two- and three-arguments forms are deprecated.])
459m4_ifval([$3], [_AM_SET_OPTION([no-define])])dnl
460 AC_SUBST([PACKAGE], [$1])dnl
461 AC_SUBST([VERSION], [$2])],
462[_AM_SET_OPTIONS([$1])dnl
463dnl Diagnose old-style AC_INIT with new-style AM_AUTOMAKE_INIT.
464m4_if(
465  m4_ifdef([AC_PACKAGE_NAME], [ok]):m4_ifdef([AC_PACKAGE_VERSION], [ok]),
466  [ok:ok],,
467  [m4_fatal([AC_INIT should be called with package and version arguments])])dnl
468 AC_SUBST([PACKAGE], ['AC_PACKAGE_TARNAME'])dnl
469 AC_SUBST([VERSION], ['AC_PACKAGE_VERSION'])])dnl
470
471_AM_IF_OPTION([no-define],,
472[AC_DEFINE_UNQUOTED([PACKAGE], ["$PACKAGE"], [Name of package])
473 AC_DEFINE_UNQUOTED([VERSION], ["$VERSION"], [Version number of package])])dnl
474
475# Some tools Automake needs.
476AC_REQUIRE([AM_SANITY_CHECK])dnl
477AC_REQUIRE([AC_ARG_PROGRAM])dnl
478AM_MISSING_PROG([ACLOCAL], [aclocal-${am__api_version}])
479AM_MISSING_PROG([AUTOCONF], [autoconf])
480AM_MISSING_PROG([AUTOMAKE], [automake-${am__api_version}])
481AM_MISSING_PROG([AUTOHEADER], [autoheader])
482AM_MISSING_PROG([MAKEINFO], [makeinfo])
483AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
484AC_REQUIRE([AM_PROG_INSTALL_STRIP])dnl
485AC_REQUIRE([AC_PROG_MKDIR_P])dnl
486# For better backward compatibility.  To be removed once Automake 1.9.x
487# dies out for good.  For more background, see:
488# <https://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
489# <https://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
490AC_SUBST([mkdir_p], ['$(MKDIR_P)'])
491# We need awk for the "check" target (and possibly the TAP driver).  The
492# system "awk" is bad on some platforms.
493AC_REQUIRE([AC_PROG_AWK])dnl
494AC_REQUIRE([AC_PROG_MAKE_SET])dnl
495AC_REQUIRE([AM_SET_LEADING_DOT])dnl
496_AM_IF_OPTION([tar-ustar], [_AM_PROG_TAR([ustar])],
497	      [_AM_IF_OPTION([tar-pax], [_AM_PROG_TAR([pax])],
498			     [_AM_PROG_TAR([v7])])])
499_AM_IF_OPTION([no-dependencies],,
500[AC_PROVIDE_IFELSE([AC_PROG_CC],
501		  [_AM_DEPENDENCIES([CC])],
502		  [m4_define([AC_PROG_CC],
503			     m4_defn([AC_PROG_CC])[_AM_DEPENDENCIES([CC])])])dnl
504AC_PROVIDE_IFELSE([AC_PROG_CXX],
505		  [_AM_DEPENDENCIES([CXX])],
506		  [m4_define([AC_PROG_CXX],
507			     m4_defn([AC_PROG_CXX])[_AM_DEPENDENCIES([CXX])])])dnl
508AC_PROVIDE_IFELSE([AC_PROG_OBJC],
509		  [_AM_DEPENDENCIES([OBJC])],
510		  [m4_define([AC_PROG_OBJC],
511			     m4_defn([AC_PROG_OBJC])[_AM_DEPENDENCIES([OBJC])])])dnl
512AC_PROVIDE_IFELSE([AC_PROG_OBJCXX],
513		  [_AM_DEPENDENCIES([OBJCXX])],
514		  [m4_define([AC_PROG_OBJCXX],
515			     m4_defn([AC_PROG_OBJCXX])[_AM_DEPENDENCIES([OBJCXX])])])dnl
516])
517AC_REQUIRE([AM_SILENT_RULES])dnl
518dnl The testsuite driver may need to know about EXEEXT, so add the
519dnl 'am__EXEEXT' conditional if _AM_COMPILER_EXEEXT was seen.  This
520dnl macro is hooked onto _AC_COMPILER_EXEEXT early, see below.
521AC_CONFIG_COMMANDS_PRE(dnl
522[m4_provide_if([_AM_COMPILER_EXEEXT],
523  [AM_CONDITIONAL([am__EXEEXT], [test -n "$EXEEXT"])])])dnl
524
525# POSIX will say in a future version that running "rm -f" with no argument
526# is OK; and we want to be able to make that assumption in our Makefile
527# recipes.  So use an aggressive probe to check that the usage we want is
528# actually supported "in the wild" to an acceptable degree.
529# See automake bug#10828.
530# To make any issue more visible, cause the running configure to be aborted
531# by default if the 'rm' program in use doesn't match our expectations; the
532# user can still override this though.
533if rm -f && rm -fr && rm -rf; then : OK; else
534  cat >&2 <<'END'
535Oops!
536
537Your 'rm' program seems unable to run without file operands specified
538on the command line, even when the '-f' option is present.  This is contrary
539to the behaviour of most rm programs out there, and not conforming with
540the upcoming POSIX standard: <http://austingroupbugs.net/view.php?id=542>
541
542Please tell bug-automake@gnu.org about your system, including the value
543of your $PATH and any error possibly output before this message.  This
544can help us improve future automake versions.
545
546END
547  if test x"$ACCEPT_INFERIOR_RM_PROGRAM" = x"yes"; then
548    echo 'Configuration will proceed anyway, since you have set the' >&2
549    echo 'ACCEPT_INFERIOR_RM_PROGRAM variable to "yes"' >&2
550    echo >&2
551  else
552    cat >&2 <<'END'
553Aborting the configuration process, to ensure you take notice of the issue.
554
555You can download and install GNU coreutils to get an 'rm' implementation
556that behaves properly: <https://www.gnu.org/software/coreutils/>.
557
558If you want to complete the configuration process using your problematic
559'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM
560to "yes", and re-run configure.
561
562END
563    AC_MSG_ERROR([Your 'rm' program is bad, sorry.])
564  fi
565fi
566dnl The trailing newline in this macro's definition is deliberate, for
567dnl backward compatibility and to allow trailing 'dnl'-style comments
568dnl after the AM_INIT_AUTOMAKE invocation. See automake bug#16841.
569])
570
571dnl Hook into '_AC_COMPILER_EXEEXT' early to learn its expansion.  Do not
572dnl add the conditional right here, as _AC_COMPILER_EXEEXT may be further
573dnl mangled by Autoconf and run in a shell conditional statement.
574m4_define([_AC_COMPILER_EXEEXT],
575m4_defn([_AC_COMPILER_EXEEXT])[m4_provide([_AM_COMPILER_EXEEXT])])
576
577# When config.status generates a header, we must update the stamp-h file.
578# This file resides in the same directory as the config header
579# that is generated.  The stamp files are numbered to have different names.
580
581# Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the
582# loop where config.status creates the headers, so we can generate
583# our stamp files there.
584AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK],
585[# Compute $1's index in $config_headers.
586_am_arg=$1
587_am_stamp_count=1
588for _am_header in $config_headers :; do
589  case $_am_header in
590    $_am_arg | $_am_arg:* )
591      break ;;
592    * )
593      _am_stamp_count=`expr $_am_stamp_count + 1` ;;
594  esac
595done
596echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
597
598# Copyright (C) 2001-2018 Free Software Foundation, Inc.
599#
600# This file is free software; the Free Software Foundation
601# gives unlimited permission to copy and/or distribute it,
602# with or without modifications, as long as this notice is preserved.
603
604# AM_PROG_INSTALL_SH
605# ------------------
606# Define $install_sh.
607AC_DEFUN([AM_PROG_INSTALL_SH],
608[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
609if test x"${install_sh+set}" != xset; then
610  case $am_aux_dir in
611  *\ * | *\	*)
612    install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
613  *)
614    install_sh="\${SHELL} $am_aux_dir/install-sh"
615  esac
616fi
617AC_SUBST([install_sh])])
618
619# Copyright (C) 2003-2018 Free Software Foundation, Inc.
620#
621# This file is free software; the Free Software Foundation
622# gives unlimited permission to copy and/or distribute it,
623# with or without modifications, as long as this notice is preserved.
624
625# Check whether the underlying file-system supports filenames
626# with a leading dot.  For instance MS-DOS doesn't.
627AC_DEFUN([AM_SET_LEADING_DOT],
628[rm -rf .tst 2>/dev/null
629mkdir .tst 2>/dev/null
630if test -d .tst; then
631  am__leading_dot=.
632else
633  am__leading_dot=_
634fi
635rmdir .tst 2>/dev/null
636AC_SUBST([am__leading_dot])])
637
638# Check to see how 'make' treats includes.	            -*- Autoconf -*-
639
640# Copyright (C) 2001-2018 Free Software Foundation, Inc.
641#
642# This file is free software; the Free Software Foundation
643# gives unlimited permission to copy and/or distribute it,
644# with or without modifications, as long as this notice is preserved.
645
646# AM_MAKE_INCLUDE()
647# -----------------
648# Check whether make has an 'include' directive that can support all
649# the idioms we need for our automatic dependency tracking code.
650AC_DEFUN([AM_MAKE_INCLUDE],
651[AC_MSG_CHECKING([whether ${MAKE-make} supports the include directive])
652cat > confinc.mk << 'END'
653am__doit:
654	@echo this is the am__doit target >confinc.out
655.PHONY: am__doit
656END
657am__include="#"
658am__quote=
659# BSD make does it like this.
660echo '.include "confinc.mk" # ignored' > confmf.BSD
661# Other make implementations (GNU, Solaris 10, AIX) do it like this.
662echo 'include confinc.mk # ignored' > confmf.GNU
663_am_result=no
664for s in GNU BSD; do
665  AM_RUN_LOG([${MAKE-make} -f confmf.$s && cat confinc.out])
666  AS_CASE([$?:`cat confinc.out 2>/dev/null`],
667      ['0:this is the am__doit target'],
668      [AS_CASE([$s],
669          [BSD], [am__include='.include' am__quote='"'],
670          [am__include='include' am__quote=''])])
671  if test "$am__include" != "#"; then
672    _am_result="yes ($s style)"
673    break
674  fi
675done
676rm -f confinc.* confmf.*
677AC_MSG_RESULT([${_am_result}])
678AC_SUBST([am__include])])
679AC_SUBST([am__quote])])
680
681# Fake the existence of programs that GNU maintainers use.  -*- Autoconf -*-
682
683# Copyright (C) 1997-2018 Free Software Foundation, Inc.
684#
685# This file is free software; the Free Software Foundation
686# gives unlimited permission to copy and/or distribute it,
687# with or without modifications, as long as this notice is preserved.
688
689# AM_MISSING_PROG(NAME, PROGRAM)
690# ------------------------------
691AC_DEFUN([AM_MISSING_PROG],
692[AC_REQUIRE([AM_MISSING_HAS_RUN])
693$1=${$1-"${am_missing_run}$2"}
694AC_SUBST($1)])
695
696# AM_MISSING_HAS_RUN
697# ------------------
698# Define MISSING if not defined so far and test if it is modern enough.
699# If it is, set am_missing_run to use it, otherwise, to nothing.
700AC_DEFUN([AM_MISSING_HAS_RUN],
701[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
702AC_REQUIRE_AUX_FILE([missing])dnl
703if test x"${MISSING+set}" != xset; then
704  case $am_aux_dir in
705  *\ * | *\	*)
706    MISSING="\${SHELL} \"$am_aux_dir/missing\"" ;;
707  *)
708    MISSING="\${SHELL} $am_aux_dir/missing" ;;
709  esac
710fi
711# Use eval to expand $SHELL
712if eval "$MISSING --is-lightweight"; then
713  am_missing_run="$MISSING "
714else
715  am_missing_run=
716  AC_MSG_WARN(['missing' script is too old or missing])
717fi
718])
719
720# Helper functions for option handling.                     -*- Autoconf -*-
721
722# Copyright (C) 2001-2018 Free Software Foundation, Inc.
723#
724# This file is free software; the Free Software Foundation
725# gives unlimited permission to copy and/or distribute it,
726# with or without modifications, as long as this notice is preserved.
727
728# _AM_MANGLE_OPTION(NAME)
729# -----------------------
730AC_DEFUN([_AM_MANGLE_OPTION],
731[[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
732
733# _AM_SET_OPTION(NAME)
734# --------------------
735# Set option NAME.  Presently that only means defining a flag for this option.
736AC_DEFUN([_AM_SET_OPTION],
737[m4_define(_AM_MANGLE_OPTION([$1]), [1])])
738
739# _AM_SET_OPTIONS(OPTIONS)
740# ------------------------
741# OPTIONS is a space-separated list of Automake options.
742AC_DEFUN([_AM_SET_OPTIONS],
743[m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
744
745# _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
746# -------------------------------------------
747# Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
748AC_DEFUN([_AM_IF_OPTION],
749[m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
750
751# Copyright (C) 1999-2018 Free Software Foundation, Inc.
752#
753# This file is free software; the Free Software Foundation
754# gives unlimited permission to copy and/or distribute it,
755# with or without modifications, as long as this notice is preserved.
756
757# _AM_PROG_CC_C_O
758# ---------------
759# Like AC_PROG_CC_C_O, but changed for automake.  We rewrite AC_PROG_CC
760# to automatically call this.
761AC_DEFUN([_AM_PROG_CC_C_O],
762[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
763AC_REQUIRE_AUX_FILE([compile])dnl
764AC_LANG_PUSH([C])dnl
765AC_CACHE_CHECK(
766  [whether $CC understands -c and -o together],
767  [am_cv_prog_cc_c_o],
768  [AC_LANG_CONFTEST([AC_LANG_PROGRAM([])])
769  # Make sure it works both with $CC and with simple cc.
770  # Following AC_PROG_CC_C_O, we do the test twice because some
771  # compilers refuse to overwrite an existing .o file with -o,
772  # though they will create one.
773  am_cv_prog_cc_c_o=yes
774  for am_i in 1 2; do
775    if AM_RUN_LOG([$CC -c conftest.$ac_ext -o conftest2.$ac_objext]) \
776         && test -f conftest2.$ac_objext; then
777      : OK
778    else
779      am_cv_prog_cc_c_o=no
780      break
781    fi
782  done
783  rm -f core conftest*
784  unset am_i])
785if test "$am_cv_prog_cc_c_o" != yes; then
786   # Losing compiler, so override with the script.
787   # FIXME: It is wrong to rewrite CC.
788   # But if we don't then we get into trouble of one sort or another.
789   # A longer-term fix would be to have automake use am__CC in this case,
790   # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
791   CC="$am_aux_dir/compile $CC"
792fi
793AC_LANG_POP([C])])
794
795# For backward compatibility.
796AC_DEFUN_ONCE([AM_PROG_CC_C_O], [AC_REQUIRE([AC_PROG_CC])])
797
798# Copyright (C) 2001-2018 Free Software Foundation, Inc.
799#
800# This file is free software; the Free Software Foundation
801# gives unlimited permission to copy and/or distribute it,
802# with or without modifications, as long as this notice is preserved.
803
804# AM_RUN_LOG(COMMAND)
805# -------------------
806# Run COMMAND, save the exit status in ac_status, and log it.
807# (This has been adapted from Autoconf's _AC_RUN_LOG macro.)
808AC_DEFUN([AM_RUN_LOG],
809[{ echo "$as_me:$LINENO: $1" >&AS_MESSAGE_LOG_FD
810   ($1) >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD
811   ac_status=$?
812   echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
813   (exit $ac_status); }])
814
815# Check to make sure that the build environment is sane.    -*- Autoconf -*-
816
817# Copyright (C) 1996-2018 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# AM_SANITY_CHECK
824# ---------------
825AC_DEFUN([AM_SANITY_CHECK],
826[AC_MSG_CHECKING([whether build environment is sane])
827# Reject unsafe characters in $srcdir or the absolute working directory
828# name.  Accept space and tab only in the latter.
829am_lf='
830'
831case `pwd` in
832  *[[\\\"\#\$\&\'\`$am_lf]]*)
833    AC_MSG_ERROR([unsafe absolute working directory name]);;
834esac
835case $srcdir in
836  *[[\\\"\#\$\&\'\`$am_lf\ \	]]*)
837    AC_MSG_ERROR([unsafe srcdir value: '$srcdir']);;
838esac
839
840# Do 'set' in a subshell so we don't clobber the current shell's
841# arguments.  Must try -L first in case configure is actually a
842# symlink; some systems play weird games with the mod time of symlinks
843# (eg FreeBSD returns the mod time of the symlink's containing
844# directory).
845if (
846   am_has_slept=no
847   for am_try in 1 2; do
848     echo "timestamp, slept: $am_has_slept" > conftest.file
849     set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
850     if test "$[*]" = "X"; then
851	# -L didn't work.
852	set X `ls -t "$srcdir/configure" conftest.file`
853     fi
854     if test "$[*]" != "X $srcdir/configure conftest.file" \
855	&& test "$[*]" != "X conftest.file $srcdir/configure"; then
856
857	# If neither matched, then we have a broken ls.  This can happen
858	# if, for instance, CONFIG_SHELL is bash and it inherits a
859	# broken ls alias from the environment.  This has actually
860	# happened.  Such a system could not be considered "sane".
861	AC_MSG_ERROR([ls -t appears to fail.  Make sure there is not a broken
862  alias in your environment])
863     fi
864     if test "$[2]" = conftest.file || test $am_try -eq 2; then
865       break
866     fi
867     # Just in case.
868     sleep 1
869     am_has_slept=yes
870   done
871   test "$[2]" = conftest.file
872   )
873then
874   # Ok.
875   :
876else
877   AC_MSG_ERROR([newly created file is older than distributed files!
878Check your system clock])
879fi
880AC_MSG_RESULT([yes])
881# If we didn't sleep, we still need to ensure time stamps of config.status and
882# generated files are strictly newer.
883am_sleep_pid=
884if grep 'slept: no' conftest.file >/dev/null 2>&1; then
885  ( sleep 1 ) &
886  am_sleep_pid=$!
887fi
888AC_CONFIG_COMMANDS_PRE(
889  [AC_MSG_CHECKING([that generated files are newer than configure])
890   if test -n "$am_sleep_pid"; then
891     # Hide warnings about reused PIDs.
892     wait $am_sleep_pid 2>/dev/null
893   fi
894   AC_MSG_RESULT([done])])
895rm -f conftest.file
896])
897
898# Copyright (C) 2009-2018 Free Software Foundation, Inc.
899#
900# This file is free software; the Free Software Foundation
901# gives unlimited permission to copy and/or distribute it,
902# with or without modifications, as long as this notice is preserved.
903
904# AM_SILENT_RULES([DEFAULT])
905# --------------------------
906# Enable less verbose build rules; with the default set to DEFAULT
907# ("yes" being less verbose, "no" or empty being verbose).
908AC_DEFUN([AM_SILENT_RULES],
909[AC_ARG_ENABLE([silent-rules], [dnl
910AS_HELP_STRING(
911  [--enable-silent-rules],
912  [less verbose build output (undo: "make V=1")])
913AS_HELP_STRING(
914  [--disable-silent-rules],
915  [verbose build output (undo: "make V=0")])dnl
916])
917case $enable_silent_rules in @%:@ (((
918  yes) AM_DEFAULT_VERBOSITY=0;;
919   no) AM_DEFAULT_VERBOSITY=1;;
920    *) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);;
921esac
922dnl
923dnl A few 'make' implementations (e.g., NonStop OS and NextStep)
924dnl do not support nested variable expansions.
925dnl See automake bug#9928 and bug#10237.
926am_make=${MAKE-make}
927AC_CACHE_CHECK([whether $am_make supports nested variables],
928   [am_cv_make_support_nested_variables],
929   [if AS_ECHO([['TRUE=$(BAR$(V))
930BAR0=false
931BAR1=true
932V=1
933am__doit:
934	@$(TRUE)
935.PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then
936  am_cv_make_support_nested_variables=yes
937else
938  am_cv_make_support_nested_variables=no
939fi])
940if test $am_cv_make_support_nested_variables = yes; then
941  dnl Using '$V' instead of '$(V)' breaks IRIX make.
942  AM_V='$(V)'
943  AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
944else
945  AM_V=$AM_DEFAULT_VERBOSITY
946  AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
947fi
948AC_SUBST([AM_V])dnl
949AM_SUBST_NOTMAKE([AM_V])dnl
950AC_SUBST([AM_DEFAULT_V])dnl
951AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl
952AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
953AM_BACKSLASH='\'
954AC_SUBST([AM_BACKSLASH])dnl
955_AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
956])
957
958# Copyright (C) 2001-2018 Free Software Foundation, Inc.
959#
960# This file is free software; the Free Software Foundation
961# gives unlimited permission to copy and/or distribute it,
962# with or without modifications, as long as this notice is preserved.
963
964# AM_PROG_INSTALL_STRIP
965# ---------------------
966# One issue with vendor 'install' (even GNU) is that you can't
967# specify the program used to strip binaries.  This is especially
968# annoying in cross-compiling environments, where the build's strip
969# is unlikely to handle the host's binaries.
970# Fortunately install-sh will honor a STRIPPROG variable, so we
971# always use install-sh in "make install-strip", and initialize
972# STRIPPROG with the value of the STRIP variable (set by the user).
973AC_DEFUN([AM_PROG_INSTALL_STRIP],
974[AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
975# Installed binaries are usually stripped using 'strip' when the user
976# run "make install-strip".  However 'strip' might not be the right
977# tool to use in cross-compilation environments, therefore Automake
978# will honor the 'STRIP' environment variable to overrule this program.
979dnl Don't test for $cross_compiling = yes, because it might be 'maybe'.
980if test "$cross_compiling" != no; then
981  AC_CHECK_TOOL([STRIP], [strip], :)
982fi
983INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
984AC_SUBST([INSTALL_STRIP_PROGRAM])])
985
986# Copyright (C) 2006-2018 Free Software Foundation, Inc.
987#
988# This file is free software; the Free Software Foundation
989# gives unlimited permission to copy and/or distribute it,
990# with or without modifications, as long as this notice is preserved.
991
992# _AM_SUBST_NOTMAKE(VARIABLE)
993# ---------------------------
994# Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
995# This macro is traced by Automake.
996AC_DEFUN([_AM_SUBST_NOTMAKE])
997
998# AM_SUBST_NOTMAKE(VARIABLE)
999# --------------------------
1000# Public sister of _AM_SUBST_NOTMAKE.
1001AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
1002
1003# Check how to create a tarball.                            -*- Autoconf -*-
1004
1005# Copyright (C) 2004-2018 Free Software Foundation, Inc.
1006#
1007# This file is free software; the Free Software Foundation
1008# gives unlimited permission to copy and/or distribute it,
1009# with or without modifications, as long as this notice is preserved.
1010
1011# _AM_PROG_TAR(FORMAT)
1012# --------------------
1013# Check how to create a tarball in format FORMAT.
1014# FORMAT should be one of 'v7', 'ustar', or 'pax'.
1015#
1016# Substitute a variable $(am__tar) that is a command
1017# writing to stdout a FORMAT-tarball containing the directory
1018# $tardir.
1019#     tardir=directory && $(am__tar) > result.tar
1020#
1021# Substitute a variable $(am__untar) that extract such
1022# a tarball read from stdin.
1023#     $(am__untar) < result.tar
1024#
1025AC_DEFUN([_AM_PROG_TAR],
1026[# Always define AMTAR for backward compatibility.  Yes, it's still used
1027# in the wild :-(  We should find a proper way to deprecate it ...
1028AC_SUBST([AMTAR], ['$${TAR-tar}'])
1029
1030# We'll loop over all known methods to create a tar archive until one works.
1031_am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
1032
1033m4_if([$1], [v7],
1034  [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],
1035
1036  [m4_case([$1],
1037    [ustar],
1038     [# The POSIX 1988 'ustar' format is defined with fixed-size fields.
1039      # There is notably a 21 bits limit for the UID and the GID.  In fact,
1040      # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343
1041      # and bug#13588).
1042      am_max_uid=2097151 # 2^21 - 1
1043      am_max_gid=$am_max_uid
1044      # The $UID and $GID variables are not portable, so we need to resort
1045      # to the POSIX-mandated id(1) utility.  Errors in the 'id' calls
1046      # below are definitely unexpected, so allow the users to see them
1047      # (that is, avoid stderr redirection).
1048      am_uid=`id -u || echo unknown`
1049      am_gid=`id -g || echo unknown`
1050      AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format])
1051      if test $am_uid -le $am_max_uid; then
1052         AC_MSG_RESULT([yes])
1053      else
1054         AC_MSG_RESULT([no])
1055         _am_tools=none
1056      fi
1057      AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format])
1058      if test $am_gid -le $am_max_gid; then
1059         AC_MSG_RESULT([yes])
1060      else
1061        AC_MSG_RESULT([no])
1062        _am_tools=none
1063      fi],
1064
1065  [pax],
1066    [],
1067
1068  [m4_fatal([Unknown tar format])])
1069
1070  AC_MSG_CHECKING([how to create a $1 tar archive])
1071
1072  # Go ahead even if we have the value already cached.  We do so because we
1073  # need to set the values for the 'am__tar' and 'am__untar' variables.
1074  _am_tools=${am_cv_prog_tar_$1-$_am_tools}
1075
1076  for _am_tool in $_am_tools; do
1077    case $_am_tool in
1078    gnutar)
1079      for _am_tar in tar gnutar gtar; do
1080        AM_RUN_LOG([$_am_tar --version]) && break
1081      done
1082      am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
1083      am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
1084      am__untar="$_am_tar -xf -"
1085      ;;
1086    plaintar)
1087      # Must skip GNU tar: if it does not support --format= it doesn't create
1088      # ustar tarball either.
1089      (tar --version) >/dev/null 2>&1 && continue
1090      am__tar='tar chf - "$$tardir"'
1091      am__tar_='tar chf - "$tardir"'
1092      am__untar='tar xf -'
1093      ;;
1094    pax)
1095      am__tar='pax -L -x $1 -w "$$tardir"'
1096      am__tar_='pax -L -x $1 -w "$tardir"'
1097      am__untar='pax -r'
1098      ;;
1099    cpio)
1100      am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
1101      am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
1102      am__untar='cpio -i -H $1 -d'
1103      ;;
1104    none)
1105      am__tar=false
1106      am__tar_=false
1107      am__untar=false
1108      ;;
1109    esac
1110
1111    # If the value was cached, stop now.  We just wanted to have am__tar
1112    # and am__untar set.
1113    test -n "${am_cv_prog_tar_$1}" && break
1114
1115    # tar/untar a dummy directory, and stop if the command works.
1116    rm -rf conftest.dir
1117    mkdir conftest.dir
1118    echo GrepMe > conftest.dir/file
1119    AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
1120    rm -rf conftest.dir
1121    if test -s conftest.tar; then
1122      AM_RUN_LOG([$am__untar <conftest.tar])
1123      AM_RUN_LOG([cat conftest.dir/file])
1124      grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
1125    fi
1126  done
1127  rm -rf conftest.dir
1128
1129  AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
1130  AC_MSG_RESULT([$am_cv_prog_tar_$1])])
1131
1132AC_SUBST([am__tar])
1133AC_SUBST([am__untar])
1134]) # _AM_PROG_TAR
1135
1136