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($@)])])
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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)
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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
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90#
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105AC_DEFUN([AM_AUX_DIR_EXPAND],
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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])],
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143
144# Do all the work for Automake.                             -*- Autoconf -*-
145
146# Copyright (C) 1996-2018 Free Software Foundation, Inc.
147#
148# This file is free software; the Free Software Foundation
149# gives unlimited permission to copy and/or distribute it,
150# with or without modifications, as long as this notice is preserved.
151
152# This macro actually does too much.  Some checks are only needed if
153# your package does certain things.  But this isn't really a big deal.
154
155dnl Redefine AC_PROG_CC to automatically invoke _AM_PROG_CC_C_O.
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158[_AM_PROG_CC_C_O
159])
160
161# AM_INIT_AUTOMAKE(PACKAGE, VERSION, [NO-DEFINE])
162# AM_INIT_AUTOMAKE([OPTIONS])
163# -----------------------------------------------
164# The call with PACKAGE and VERSION arguments is the old style
165# call (pre autoconf-2.50), which is being phased out.  PACKAGE
166# and VERSION should now be passed to AC_INIT and removed from
167# the call to AM_INIT_AUTOMAKE.
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170# arguments mandatory, and then we can depend on a new Autoconf
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175dnl the ones we care about.
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177AC_REQUIRE([AM_SET_CURRENT_AUTOMAKE_VERSION])dnl
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205 AC_SUBST([PACKAGE], [$1])dnl
206 AC_SUBST([VERSION], [$2])],
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208dnl Diagnose old-style AC_INIT with new-style AM_AUTOMAKE_INIT.
209m4_if(
210  m4_ifdef([AC_PACKAGE_NAME], [ok]):m4_ifdef([AC_PACKAGE_VERSION], [ok]),
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212  [m4_fatal([AC_INIT should be called with package and version arguments])])dnl
213 AC_SUBST([PACKAGE], ['AC_PACKAGE_TARNAME'])dnl
214 AC_SUBST([VERSION], ['AC_PACKAGE_VERSION'])])dnl
215
216_AM_IF_OPTION([no-define],,
217[AC_DEFINE_UNQUOTED([PACKAGE], ["$PACKAGE"], [Name of package])
218 AC_DEFINE_UNQUOTED([VERSION], ["$VERSION"], [Version number of package])])dnl
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220# Some tools Automake needs.
221AC_REQUIRE([AM_SANITY_CHECK])dnl
222AC_REQUIRE([AC_ARG_PROGRAM])dnl
223AM_MISSING_PROG([ACLOCAL], [aclocal-${am__api_version}])
224AM_MISSING_PROG([AUTOCONF], [autoconf])
225AM_MISSING_PROG([AUTOMAKE], [automake-${am__api_version}])
226AM_MISSING_PROG([AUTOHEADER], [autoheader])
227AM_MISSING_PROG([MAKEINFO], [makeinfo])
228AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
229AC_REQUIRE([AM_PROG_INSTALL_STRIP])dnl
230AC_REQUIRE([AC_PROG_MKDIR_P])dnl
231# For better backward compatibility.  To be removed once Automake 1.9.x
232# dies out for good.  For more background, see:
233# <https://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
234# <https://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
235AC_SUBST([mkdir_p], ['$(MKDIR_P)'])
236# We need awk for the "check" target (and possibly the TAP driver).  The
237# system "awk" is bad on some platforms.
238AC_REQUIRE([AC_PROG_AWK])dnl
239AC_REQUIRE([AC_PROG_MAKE_SET])dnl
240AC_REQUIRE([AM_SET_LEADING_DOT])dnl
241_AM_IF_OPTION([tar-ustar], [_AM_PROG_TAR([ustar])],
242	      [_AM_IF_OPTION([tar-pax], [_AM_PROG_TAR([pax])],
243			     [_AM_PROG_TAR([v7])])])
244_AM_IF_OPTION([no-dependencies],,
245[AC_PROVIDE_IFELSE([AC_PROG_CC],
246		  [_AM_DEPENDENCIES([CC])],
247		  [m4_define([AC_PROG_CC],
248			     m4_defn([AC_PROG_CC])[_AM_DEPENDENCIES([CC])])])dnl
249AC_PROVIDE_IFELSE([AC_PROG_CXX],
250		  [_AM_DEPENDENCIES([CXX])],
251		  [m4_define([AC_PROG_CXX],
252			     m4_defn([AC_PROG_CXX])[_AM_DEPENDENCIES([CXX])])])dnl
253AC_PROVIDE_IFELSE([AC_PROG_OBJC],
254		  [_AM_DEPENDENCIES([OBJC])],
255		  [m4_define([AC_PROG_OBJC],
256			     m4_defn([AC_PROG_OBJC])[_AM_DEPENDENCIES([OBJC])])])dnl
257AC_PROVIDE_IFELSE([AC_PROG_OBJCXX],
258		  [_AM_DEPENDENCIES([OBJCXX])],
259		  [m4_define([AC_PROG_OBJCXX],
260			     m4_defn([AC_PROG_OBJCXX])[_AM_DEPENDENCIES([OBJCXX])])])dnl
261])
262AC_REQUIRE([AM_SILENT_RULES])dnl
263dnl The testsuite driver may need to know about EXEEXT, so add the
264dnl 'am__EXEEXT' conditional if _AM_COMPILER_EXEEXT was seen.  This
265dnl macro is hooked onto _AC_COMPILER_EXEEXT early, see below.
266AC_CONFIG_COMMANDS_PRE(dnl
267[m4_provide_if([_AM_COMPILER_EXEEXT],
268  [AM_CONDITIONAL([am__EXEEXT], [test -n "$EXEEXT"])])])dnl
269
270# POSIX will say in a future version that running "rm -f" with no argument
271# is OK; and we want to be able to make that assumption in our Makefile
272# recipes.  So use an aggressive probe to check that the usage we want is
273# actually supported "in the wild" to an acceptable degree.
274# See automake bug#10828.
275# To make any issue more visible, cause the running configure to be aborted
276# by default if the 'rm' program in use doesn't match our expectations; the
277# user can still override this though.
278if rm -f && rm -fr && rm -rf; then : OK; else
279  cat >&2 <<'END'
280Oops!
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282Your 'rm' program seems unable to run without file operands specified
283on the command line, even when the '-f' option is present.  This is contrary
284to the behaviour of most rm programs out there, and not conforming with
285the upcoming POSIX standard: <http://austingroupbugs.net/view.php?id=542>
286
287Please tell bug-automake@gnu.org about your system, including the value
288of your $PATH and any error possibly output before this message.  This
289can help us improve future automake versions.
290
291END
292  if test x"$ACCEPT_INFERIOR_RM_PROGRAM" = x"yes"; then
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294    echo 'ACCEPT_INFERIOR_RM_PROGRAM variable to "yes"' >&2
295    echo >&2
296  else
297    cat >&2 <<'END'
298Aborting the configuration process, to ensure you take notice of the issue.
299
300You can download and install GNU coreutils to get an 'rm' implementation
301that behaves properly: <https://www.gnu.org/software/coreutils/>.
302
303If you want to complete the configuration process using your problematic
304'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM
305to "yes", and re-run configure.
306
307END
308    AC_MSG_ERROR([Your 'rm' program is bad, sorry.])
309  fi
310fi
311dnl The trailing newline in this macro's definition is deliberate, for
312dnl backward compatibility and to allow trailing 'dnl'-style comments
313dnl after the AM_INIT_AUTOMAKE invocation. See automake bug#16841.
314])
315
316dnl Hook into '_AC_COMPILER_EXEEXT' early to learn its expansion.  Do not
317dnl add the conditional right here, as _AC_COMPILER_EXEEXT may be further
318dnl mangled by Autoconf and run in a shell conditional statement.
319m4_define([_AC_COMPILER_EXEEXT],
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321
322# When config.status generates a header, we must update the stamp-h file.
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325
326# Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the
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339  esac
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341echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
342
343# Copyright (C) 2001-2018 Free Software Foundation, Inc.
344#
345# This file is free software; the Free Software Foundation
346# gives unlimited permission to copy and/or distribute it,
347# with or without modifications, as long as this notice is preserved.
348
349# AM_PROG_INSTALL_SH
350# ------------------
351# Define $install_sh.
352AC_DEFUN([AM_PROG_INSTALL_SH],
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354if test x"${install_sh+set}" != xset; then
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356  *\ * | *\	*)
357    install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
358  *)
359    install_sh="\${SHELL} $am_aux_dir/install-sh"
360  esac
361fi
362AC_SUBST([install_sh])])
363
364# Copyright (C) 2003-2018 Free Software Foundation, Inc.
365#
366# This file is free software; the Free Software Foundation
367# gives unlimited permission to copy and/or distribute it,
368# with or without modifications, as long as this notice is preserved.
369
370# Check whether the underlying file-system supports filenames
371# with a leading dot.  For instance MS-DOS doesn't.
372AC_DEFUN([AM_SET_LEADING_DOT],
373[rm -rf .tst 2>/dev/null
374mkdir .tst 2>/dev/null
375if test -d .tst; then
376  am__leading_dot=.
377else
378  am__leading_dot=_
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380rmdir .tst 2>/dev/null
381AC_SUBST([am__leading_dot])])
382
383# Fake the existence of programs that GNU maintainers use.  -*- Autoconf -*-
384
385# Copyright (C) 1997-2018 Free Software Foundation, Inc.
386#
387# This file is free software; the Free Software Foundation
388# gives unlimited permission to copy and/or distribute it,
389# with or without modifications, as long as this notice is preserved.
390
391# AM_MISSING_PROG(NAME, PROGRAM)
392# ------------------------------
393AC_DEFUN([AM_MISSING_PROG],
394[AC_REQUIRE([AM_MISSING_HAS_RUN])
395$1=${$1-"${am_missing_run}$2"}
396AC_SUBST($1)])
397
398# AM_MISSING_HAS_RUN
399# ------------------
400# Define MISSING if not defined so far and test if it is modern enough.
401# If it is, set am_missing_run to use it, otherwise, to nothing.
402AC_DEFUN([AM_MISSING_HAS_RUN],
403[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
404AC_REQUIRE_AUX_FILE([missing])dnl
405if test x"${MISSING+set}" != xset; then
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407  *\ * | *\	*)
408    MISSING="\${SHELL} \"$am_aux_dir/missing\"" ;;
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410    MISSING="\${SHELL} $am_aux_dir/missing" ;;
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414if eval "$MISSING --is-lightweight"; then
415  am_missing_run="$MISSING "
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417  am_missing_run=
418  AC_MSG_WARN(['missing' script is too old or missing])
419fi
420])
421
422# Helper functions for option handling.                     -*- Autoconf -*-
423
424# Copyright (C) 2001-2018 Free Software Foundation, Inc.
425#
426# This file is free software; the Free Software Foundation
427# gives unlimited permission to copy and/or distribute it,
428# with or without modifications, as long as this notice is preserved.
429
430# _AM_MANGLE_OPTION(NAME)
431# -----------------------
432AC_DEFUN([_AM_MANGLE_OPTION],
433[[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
434
435# _AM_SET_OPTION(NAME)
436# --------------------
437# Set option NAME.  Presently that only means defining a flag for this option.
438AC_DEFUN([_AM_SET_OPTION],
439[m4_define(_AM_MANGLE_OPTION([$1]), [1])])
440
441# _AM_SET_OPTIONS(OPTIONS)
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443# OPTIONS is a space-separated list of Automake options.
444AC_DEFUN([_AM_SET_OPTIONS],
445[m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
446
447# _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
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450AC_DEFUN([_AM_IF_OPTION],
451[m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
452
453# Copyright (C) 1999-2018 Free Software Foundation, Inc.
454#
455# This file is free software; the Free Software Foundation
456# gives unlimited permission to copy and/or distribute it,
457# with or without modifications, as long as this notice is preserved.
458
459# _AM_PROG_CC_C_O
460# ---------------
461# Like AC_PROG_CC_C_O, but changed for automake.  We rewrite AC_PROG_CC
462# to automatically call this.
463AC_DEFUN([_AM_PROG_CC_C_O],
464[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
465AC_REQUIRE_AUX_FILE([compile])dnl
466AC_LANG_PUSH([C])dnl
467AC_CACHE_CHECK(
468  [whether $CC understands -c and -o together],
469  [am_cv_prog_cc_c_o],
470  [AC_LANG_CONFTEST([AC_LANG_PROGRAM([])])
471  # Make sure it works both with $CC and with simple cc.
472  # Following AC_PROG_CC_C_O, we do the test twice because some
473  # compilers refuse to overwrite an existing .o file with -o,
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475  am_cv_prog_cc_c_o=yes
476  for am_i in 1 2; do
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487if test "$am_cv_prog_cc_c_o" != yes; then
488   # Losing compiler, so override with the script.
489   # FIXME: It is wrong to rewrite CC.
490   # But if we don't then we get into trouble of one sort or another.
491   # A longer-term fix would be to have automake use am__CC in this case,
492   # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
493   CC="$am_aux_dir/compile $CC"
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495AC_LANG_POP([C])])
496
497# For backward compatibility.
498AC_DEFUN_ONCE([AM_PROG_CC_C_O], [AC_REQUIRE([AC_PROG_CC])])
499
500# Copyright (C) 2001-2018 Free Software Foundation, Inc.
501#
502# This file is free software; the Free Software Foundation
503# gives unlimited permission to copy and/or distribute it,
504# with or without modifications, as long as this notice is preserved.
505
506# AM_RUN_LOG(COMMAND)
507# -------------------
508# Run COMMAND, save the exit status in ac_status, and log it.
509# (This has been adapted from Autoconf's _AC_RUN_LOG macro.)
510AC_DEFUN([AM_RUN_LOG],
511[{ echo "$as_me:$LINENO: $1" >&AS_MESSAGE_LOG_FD
512   ($1) >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD
513   ac_status=$?
514   echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
515   (exit $ac_status); }])
516
517# Check to make sure that the build environment is sane.    -*- Autoconf -*-
518
519# Copyright (C) 1996-2018 Free Software Foundation, Inc.
520#
521# This file is free software; the Free Software Foundation
522# gives unlimited permission to copy and/or distribute it,
523# with or without modifications, as long as this notice is preserved.
524
525# AM_SANITY_CHECK
526# ---------------
527AC_DEFUN([AM_SANITY_CHECK],
528[AC_MSG_CHECKING([whether build environment is sane])
529# Reject unsafe characters in $srcdir or the absolute working directory
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531am_lf='
532'
533case `pwd` in
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535    AC_MSG_ERROR([unsafe absolute working directory name]);;
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537case $srcdir in
538  *[[\\\"\#\$\&\'\`$am_lf\ \	]]*)
539    AC_MSG_ERROR([unsafe srcdir value: '$srcdir']);;
540esac
541
542# Do 'set' in a subshell so we don't clobber the current shell's
543# arguments.  Must try -L first in case configure is actually a
544# symlink; some systems play weird games with the mod time of symlinks
545# (eg FreeBSD returns the mod time of the symlink's containing
546# directory).
547if (
548   am_has_slept=no
549   for am_try in 1 2; do
550     echo "timestamp, slept: $am_has_slept" > conftest.file
551     set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
552     if test "$[*]" = "X"; then
553	# -L didn't work.
554	set X `ls -t "$srcdir/configure" conftest.file`
555     fi
556     if test "$[*]" != "X $srcdir/configure conftest.file" \
557	&& test "$[*]" != "X conftest.file $srcdir/configure"; then
558
559	# If neither matched, then we have a broken ls.  This can happen
560	# if, for instance, CONFIG_SHELL is bash and it inherits a
561	# broken ls alias from the environment.  This has actually
562	# happened.  Such a system could not be considered "sane".
563	AC_MSG_ERROR([ls -t appears to fail.  Make sure there is not a broken
564  alias in your environment])
565     fi
566     if test "$[2]" = conftest.file || test $am_try -eq 2; then
567       break
568     fi
569     # Just in case.
570     sleep 1
571     am_has_slept=yes
572   done
573   test "$[2]" = conftest.file
574   )
575then
576   # Ok.
577   :
578else
579   AC_MSG_ERROR([newly created file is older than distributed files!
580Check your system clock])
581fi
582AC_MSG_RESULT([yes])
583# If we didn't sleep, we still need to ensure time stamps of config.status and
584# generated files are strictly newer.
585am_sleep_pid=
586if grep 'slept: no' conftest.file >/dev/null 2>&1; then
587  ( sleep 1 ) &
588  am_sleep_pid=$!
589fi
590AC_CONFIG_COMMANDS_PRE(
591  [AC_MSG_CHECKING([that generated files are newer than configure])
592   if test -n "$am_sleep_pid"; then
593     # Hide warnings about reused PIDs.
594     wait $am_sleep_pid 2>/dev/null
595   fi
596   AC_MSG_RESULT([done])])
597rm -f conftest.file
598])
599
600# Copyright (C) 2009-2018 Free Software Foundation, Inc.
601#
602# This file is free software; the Free Software Foundation
603# gives unlimited permission to copy and/or distribute it,
604# with or without modifications, as long as this notice is preserved.
605
606# AM_SILENT_RULES([DEFAULT])
607# --------------------------
608# Enable less verbose build rules; with the default set to DEFAULT
609# ("yes" being less verbose, "no" or empty being verbose).
610AC_DEFUN([AM_SILENT_RULES],
611[AC_ARG_ENABLE([silent-rules], [dnl
612AS_HELP_STRING(
613  [--enable-silent-rules],
614  [less verbose build output (undo: "make V=1")])
615AS_HELP_STRING(
616  [--disable-silent-rules],
617  [verbose build output (undo: "make V=0")])dnl
618])
619case $enable_silent_rules in @%:@ (((
620  yes) AM_DEFAULT_VERBOSITY=0;;
621   no) AM_DEFAULT_VERBOSITY=1;;
622    *) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);;
623esac
624dnl
625dnl A few 'make' implementations (e.g., NonStop OS and NextStep)
626dnl do not support nested variable expansions.
627dnl See automake bug#9928 and bug#10237.
628am_make=${MAKE-make}
629AC_CACHE_CHECK([whether $am_make supports nested variables],
630   [am_cv_make_support_nested_variables],
631   [if AS_ECHO([['TRUE=$(BAR$(V))
632BAR0=false
633BAR1=true
634V=1
635am__doit:
636	@$(TRUE)
637.PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then
638  am_cv_make_support_nested_variables=yes
639else
640  am_cv_make_support_nested_variables=no
641fi])
642if test $am_cv_make_support_nested_variables = yes; then
643  dnl Using '$V' instead of '$(V)' breaks IRIX make.
644  AM_V='$(V)'
645  AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
646else
647  AM_V=$AM_DEFAULT_VERBOSITY
648  AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
649fi
650AC_SUBST([AM_V])dnl
651AM_SUBST_NOTMAKE([AM_V])dnl
652AC_SUBST([AM_DEFAULT_V])dnl
653AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl
654AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
655AM_BACKSLASH='\'
656AC_SUBST([AM_BACKSLASH])dnl
657_AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
658])
659
660# Copyright (C) 2001-2018 Free Software Foundation, Inc.
661#
662# This file is free software; the Free Software Foundation
663# gives unlimited permission to copy and/or distribute it,
664# with or without modifications, as long as this notice is preserved.
665
666# AM_PROG_INSTALL_STRIP
667# ---------------------
668# One issue with vendor 'install' (even GNU) is that you can't
669# specify the program used to strip binaries.  This is especially
670# annoying in cross-compiling environments, where the build's strip
671# is unlikely to handle the host's binaries.
672# Fortunately install-sh will honor a STRIPPROG variable, so we
673# always use install-sh in "make install-strip", and initialize
674# STRIPPROG with the value of the STRIP variable (set by the user).
675AC_DEFUN([AM_PROG_INSTALL_STRIP],
676[AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
677# Installed binaries are usually stripped using 'strip' when the user
678# run "make install-strip".  However 'strip' might not be the right
679# tool to use in cross-compilation environments, therefore Automake
680# will honor the 'STRIP' environment variable to overrule this program.
681dnl Don't test for $cross_compiling = yes, because it might be 'maybe'.
682if test "$cross_compiling" != no; then
683  AC_CHECK_TOOL([STRIP], [strip], :)
684fi
685INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
686AC_SUBST([INSTALL_STRIP_PROGRAM])])
687
688# Copyright (C) 2006-2018 Free Software Foundation, Inc.
689#
690# This file is free software; the Free Software Foundation
691# gives unlimited permission to copy and/or distribute it,
692# with or without modifications, as long as this notice is preserved.
693
694# _AM_SUBST_NOTMAKE(VARIABLE)
695# ---------------------------
696# Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
697# This macro is traced by Automake.
698AC_DEFUN([_AM_SUBST_NOTMAKE])
699
700# AM_SUBST_NOTMAKE(VARIABLE)
701# --------------------------
702# Public sister of _AM_SUBST_NOTMAKE.
703AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
704
705# Check how to create a tarball.                            -*- Autoconf -*-
706
707# Copyright (C) 2004-2018 Free Software Foundation, Inc.
708#
709# This file is free software; the Free Software Foundation
710# gives unlimited permission to copy and/or distribute it,
711# with or without modifications, as long as this notice is preserved.
712
713# _AM_PROG_TAR(FORMAT)
714# --------------------
715# Check how to create a tarball in format FORMAT.
716# FORMAT should be one of 'v7', 'ustar', or 'pax'.
717#
718# Substitute a variable $(am__tar) that is a command
719# writing to stdout a FORMAT-tarball containing the directory
720# $tardir.
721#     tardir=directory && $(am__tar) > result.tar
722#
723# Substitute a variable $(am__untar) that extract such
724# a tarball read from stdin.
725#     $(am__untar) < result.tar
726#
727AC_DEFUN([_AM_PROG_TAR],
728[# Always define AMTAR for backward compatibility.  Yes, it's still used
729# in the wild :-(  We should find a proper way to deprecate it ...
730AC_SUBST([AMTAR], ['$${TAR-tar}'])
731
732# We'll loop over all known methods to create a tar archive until one works.
733_am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
734
735m4_if([$1], [v7],
736  [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],
737
738  [m4_case([$1],
739    [ustar],
740     [# The POSIX 1988 'ustar' format is defined with fixed-size fields.
741      # There is notably a 21 bits limit for the UID and the GID.  In fact,
742      # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343
743      # and bug#13588).
744      am_max_uid=2097151 # 2^21 - 1
745      am_max_gid=$am_max_uid
746      # The $UID and $GID variables are not portable, so we need to resort
747      # to the POSIX-mandated id(1) utility.  Errors in the 'id' calls
748      # below are definitely unexpected, so allow the users to see them
749      # (that is, avoid stderr redirection).
750      am_uid=`id -u || echo unknown`
751      am_gid=`id -g || echo unknown`
752      AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format])
753      if test $am_uid -le $am_max_uid; then
754         AC_MSG_RESULT([yes])
755      else
756         AC_MSG_RESULT([no])
757         _am_tools=none
758      fi
759      AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format])
760      if test $am_gid -le $am_max_gid; then
761         AC_MSG_RESULT([yes])
762      else
763        AC_MSG_RESULT([no])
764        _am_tools=none
765      fi],
766
767  [pax],
768    [],
769
770  [m4_fatal([Unknown tar format])])
771
772  AC_MSG_CHECKING([how to create a $1 tar archive])
773
774  # Go ahead even if we have the value already cached.  We do so because we
775  # need to set the values for the 'am__tar' and 'am__untar' variables.
776  _am_tools=${am_cv_prog_tar_$1-$_am_tools}
777
778  for _am_tool in $_am_tools; do
779    case $_am_tool in
780    gnutar)
781      for _am_tar in tar gnutar gtar; do
782        AM_RUN_LOG([$_am_tar --version]) && break
783      done
784      am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
785      am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
786      am__untar="$_am_tar -xf -"
787      ;;
788    plaintar)
789      # Must skip GNU tar: if it does not support --format= it doesn't create
790      # ustar tarball either.
791      (tar --version) >/dev/null 2>&1 && continue
792      am__tar='tar chf - "$$tardir"'
793      am__tar_='tar chf - "$tardir"'
794      am__untar='tar xf -'
795      ;;
796    pax)
797      am__tar='pax -L -x $1 -w "$$tardir"'
798      am__tar_='pax -L -x $1 -w "$tardir"'
799      am__untar='pax -r'
800      ;;
801    cpio)
802      am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
803      am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
804      am__untar='cpio -i -H $1 -d'
805      ;;
806    none)
807      am__tar=false
808      am__tar_=false
809      am__untar=false
810      ;;
811    esac
812
813    # If the value was cached, stop now.  We just wanted to have am__tar
814    # and am__untar set.
815    test -n "${am_cv_prog_tar_$1}" && break
816
817    # tar/untar a dummy directory, and stop if the command works.
818    rm -rf conftest.dir
819    mkdir conftest.dir
820    echo GrepMe > conftest.dir/file
821    AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
822    rm -rf conftest.dir
823    if test -s conftest.tar; then
824      AM_RUN_LOG([$am__untar <conftest.tar])
825      AM_RUN_LOG([cat conftest.dir/file])
826      grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
827    fi
828  done
829  rm -rf conftest.dir
830
831  AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
832  AC_MSG_RESULT([$am_cv_prog_tar_$1])])
833
834AC_SUBST([am__tar])
835AC_SUBST([am__untar])
836]) # _AM_PROG_TAR
837
838m4_include([m4/aclocal-openssh.m4])
839m4_include([m4/libtool.m4])
840m4_include([m4/ltoptions.m4])
841m4_include([m4/ltsugar.m4])
842m4_include([m4/ltversion.m4])
843m4_include([m4/lt~obsolete.m4])
844