1# generated automatically by aclocal 1.16.5 -*- Autoconf -*-
2
3# Copyright (C) 1996-2021 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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23# Copyright (C) 2002-2021 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) 2001-2021 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
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110
111# AM_COND_IF                                            -*- Autoconf -*-
112
113# Copyright (C) 2008-2021 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_COND_IF
120# _AM_COND_ELSE
121# _AM_COND_ENDIF
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125m4_define([_AM_COND_ELSE])
126m4_define([_AM_COND_ENDIF])
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128# AM_COND_IF(COND, [IF-TRUE], [IF-FALSE])
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148# AM_CONDITIONAL                                            -*- Autoconf -*-
149
150# Copyright (C) 1997-2021 Free Software Foundation, Inc.
151#
152# This file is free software; the Free Software Foundation
153# gives unlimited permission to copy and/or distribute it,
154# with or without modifications, as long as this notice is preserved.
155
156# AM_CONDITIONAL(NAME, SHELL-CONDITION)
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180
181# Copyright (C) 1999-2021 Free Software Foundation, Inc.
182#
183# This file is free software; the Free Software Foundation
184# gives unlimited permission to copy and/or distribute it,
185# with or without modifications, as long as this notice is preserved.
186
187
188# There are a few dirty hacks below to avoid letting 'AC_PROG_CC' be
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194
195# _AM_DEPENDENCIES(NAME)
196# ----------------------
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325  cd ..
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336
337
338# AM_SET_DEPDIR
339# -------------
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341# This macro is AC_REQUIREd in _AM_DEPENDENCIES.
342AC_DEFUN([AM_SET_DEPDIR],
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344AC_SUBST([DEPDIR], ["${am__leading_dot}deps"])dnl
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346
347
348# AM_DEP_TRACK
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351[AC_ARG_ENABLE([dependency-tracking], [dnl
352AS_HELP_STRING(
353  [--enable-dependency-tracking],
354  [do not reject slow dependency extractors])
355AS_HELP_STRING(
356  [--disable-dependency-tracking],
357  [speeds up one-time build])])
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360  AMDEPBACKSLASH='\'
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367_AM_SUBST_NOTMAKE([am__nodep])dnl
368])
369
370# Generate code to set up dependency tracking.              -*- Autoconf -*-
371
372# Copyright (C) 1999-2021 Free Software Foundation, Inc.
373#
374# This file is free software; the Free Software Foundation
375# gives unlimited permission to copy and/or distribute it,
376# with or without modifications, as long as this notice is preserved.
377
378# _AM_OUTPUT_DEPENDENCY_COMMANDS
379# ------------------------------
380AC_DEFUN([_AM_OUTPUT_DEPENDENCY_COMMANDS],
381[{
382  # Older Autoconf quotes --file arguments for eval, but not when files
383  # are listed without --file.  Let's play safe and only enable the eval
384  # if we detect the quoting.
385  # TODO: see whether this extra hack can be removed once we start
386  # requiring Autoconf 2.70 or later.
387  AS_CASE([$CONFIG_FILES],
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389          [*], [set x $CONFIG_FILES])
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392  am_rc=0
393  for am_mf
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397    # Check whether this is an Automake generated Makefile which includes
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399    # Grep'ing the whole file directly is not great: AIX grep has a line
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409  if test $am_rc -ne 0; then
410    AC_MSG_FAILURE([Something went wrong bootstrapping makefile fragments
411    for automatic dependency tracking.  If GNU make was not used, consider
412    re-running the configure script with MAKE="gmake" (or whatever is
413    necessary).  You can also try re-running configure with the
414    '--disable-dependency-tracking' option to at least be able to build
415    the package (albeit without support for automatic dependency tracking).])
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418  AS_UNSET([am_filepart])
419  AS_UNSET([am_mf])
420  AS_UNSET([am_rc])
421  rm -f conftest-deps.mk
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423])# _AM_OUTPUT_DEPENDENCY_COMMANDS
424
425
426# AM_OUTPUT_DEPENDENCY_COMMANDS
427# -----------------------------
428# This macro should only be invoked once -- use via AC_REQUIRE.
429#
430# This code is only required when automatic dependency tracking is enabled.
431# This creates each '.Po' and '.Plo' makefile fragment that we'll need in
432# order to bootstrap the dependency handling code.
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435     [test x"$AMDEP_TRUE" != x"" || _AM_OUTPUT_DEPENDENCY_COMMANDS],
436     [AMDEP_TRUE="$AMDEP_TRUE" MAKE="${MAKE-make}"])])
437
438# Do all the work for Automake.                             -*- Autoconf -*-
439
440# Copyright (C) 1996-2021 Free Software Foundation, Inc.
441#
442# This file is free software; the Free Software Foundation
443# gives unlimited permission to copy and/or distribute it,
444# with or without modifications, as long as this notice is preserved.
445
446# This macro actually does too much.  Some checks are only needed if
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449dnl Redefine AC_PROG_CC to automatically invoke _AM_PROG_CC_C_O.
450m4_define([AC_PROG_CC],
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454
455# AM_INIT_AUTOMAKE(PACKAGE, VERSION, [NO-DEFINE])
456# AM_INIT_AUTOMAKE([OPTIONS])
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458# The call with PACKAGE and VERSION arguments is the old style
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462# We support both call styles for the transition.  After
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486
487# test whether we have cygpath
488if test -z "$CYGPATH_W"; then
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490    CYGPATH_W='cygpath -w'
491  else
492    CYGPATH_W=echo
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497# Define the identity of the package.
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503 AC_SUBST([PACKAGE], [$1])dnl
504 AC_SUBST([VERSION], [$2])],
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512 AC_SUBST([VERSION], ['AC_PACKAGE_VERSION'])])dnl
513
514_AM_IF_OPTION([no-define],,
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519AC_REQUIRE([AM_SANITY_CHECK])dnl
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521AM_MISSING_PROG([ACLOCAL], [aclocal-${am__api_version}])
522AM_MISSING_PROG([AUTOCONF], [autoconf])
523AM_MISSING_PROG([AUTOMAKE], [automake-${am__api_version}])
524AM_MISSING_PROG([AUTOHEADER], [autoheader])
525AM_MISSING_PROG([MAKEINFO], [makeinfo])
526AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
527AC_REQUIRE([AM_PROG_INSTALL_STRIP])dnl
528AC_REQUIRE([AC_PROG_MKDIR_P])dnl
529# For better backward compatibility.  To be removed once Automake 1.9.x
530# dies out for good.  For more background, see:
531# <https://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
532# <https://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
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534# We need awk for the "check" target (and possibly the TAP driver).  The
535# system "awk" is bad on some platforms.
536AC_REQUIRE([AC_PROG_AWK])dnl
537AC_REQUIRE([AC_PROG_MAKE_SET])dnl
538AC_REQUIRE([AM_SET_LEADING_DOT])dnl
539_AM_IF_OPTION([tar-ustar], [_AM_PROG_TAR([ustar])],
540	      [_AM_IF_OPTION([tar-pax], [_AM_PROG_TAR([pax])],
541			     [_AM_PROG_TAR([v7])])])
542_AM_IF_OPTION([no-dependencies],,
543[AC_PROVIDE_IFELSE([AC_PROG_CC],
544		  [_AM_DEPENDENCIES([CC])],
545		  [m4_define([AC_PROG_CC],
546			     m4_defn([AC_PROG_CC])[_AM_DEPENDENCIES([CC])])])dnl
547AC_PROVIDE_IFELSE([AC_PROG_CXX],
548		  [_AM_DEPENDENCIES([CXX])],
549		  [m4_define([AC_PROG_CXX],
550			     m4_defn([AC_PROG_CXX])[_AM_DEPENDENCIES([CXX])])])dnl
551AC_PROVIDE_IFELSE([AC_PROG_OBJC],
552		  [_AM_DEPENDENCIES([OBJC])],
553		  [m4_define([AC_PROG_OBJC],
554			     m4_defn([AC_PROG_OBJC])[_AM_DEPENDENCIES([OBJC])])])dnl
555AC_PROVIDE_IFELSE([AC_PROG_OBJCXX],
556		  [_AM_DEPENDENCIES([OBJCXX])],
557		  [m4_define([AC_PROG_OBJCXX],
558			     m4_defn([AC_PROG_OBJCXX])[_AM_DEPENDENCIES([OBJCXX])])])dnl
559])
560# Variables for tags utilities; see am/tags.am
561if test -z "$CTAGS"; then
562  CTAGS=ctags
563fi
564AC_SUBST([CTAGS])
565if test -z "$ETAGS"; then
566  ETAGS=etags
567fi
568AC_SUBST([ETAGS])
569if test -z "$CSCOPE"; then
570  CSCOPE=cscope
571fi
572AC_SUBST([CSCOPE])
573
574AC_REQUIRE([AM_SILENT_RULES])dnl
575dnl The testsuite driver may need to know about EXEEXT, so add the
576dnl 'am__EXEEXT' conditional if _AM_COMPILER_EXEEXT was seen.  This
577dnl macro is hooked onto _AC_COMPILER_EXEEXT early, see below.
578AC_CONFIG_COMMANDS_PRE(dnl
579[m4_provide_if([_AM_COMPILER_EXEEXT],
580  [AM_CONDITIONAL([am__EXEEXT], [test -n "$EXEEXT"])])])dnl
581
582# POSIX will say in a future version that running "rm -f" with no argument
583# is OK; and we want to be able to make that assumption in our Makefile
584# recipes.  So use an aggressive probe to check that the usage we want is
585# actually supported "in the wild" to an acceptable degree.
586# See automake bug#10828.
587# To make any issue more visible, cause the running configure to be aborted
588# by default if the 'rm' program in use doesn't match our expectations; the
589# user can still override this though.
590if rm -f && rm -fr && rm -rf; then : OK; else
591  cat >&2 <<'END'
592Oops!
593
594Your 'rm' program seems unable to run without file operands specified
595on the command line, even when the '-f' option is present.  This is contrary
596to the behaviour of most rm programs out there, and not conforming with
597the upcoming POSIX standard: <http://austingroupbugs.net/view.php?id=542>
598
599Please tell bug-automake@gnu.org about your system, including the value
600of your $PATH and any error possibly output before this message.  This
601can help us improve future automake versions.
602
603END
604  if test x"$ACCEPT_INFERIOR_RM_PROGRAM" = x"yes"; then
605    echo 'Configuration will proceed anyway, since you have set the' >&2
606    echo 'ACCEPT_INFERIOR_RM_PROGRAM variable to "yes"' >&2
607    echo >&2
608  else
609    cat >&2 <<'END'
610Aborting the configuration process, to ensure you take notice of the issue.
611
612You can download and install GNU coreutils to get an 'rm' implementation
613that behaves properly: <https://www.gnu.org/software/coreutils/>.
614
615If you want to complete the configuration process using your problematic
616'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM
617to "yes", and re-run configure.
618
619END
620    AC_MSG_ERROR([Your 'rm' program is bad, sorry.])
621  fi
622fi
623dnl The trailing newline in this macro's definition is deliberate, for
624dnl backward compatibility and to allow trailing 'dnl'-style comments
625dnl after the AM_INIT_AUTOMAKE invocation. See automake bug#16841.
626])
627
628dnl Hook into '_AC_COMPILER_EXEEXT' early to learn its expansion.  Do not
629dnl add the conditional right here, as _AC_COMPILER_EXEEXT may be further
630dnl mangled by Autoconf and run in a shell conditional statement.
631m4_define([_AC_COMPILER_EXEEXT],
632m4_defn([_AC_COMPILER_EXEEXT])[m4_provide([_AM_COMPILER_EXEEXT])])
633
634# When config.status generates a header, we must update the stamp-h file.
635# This file resides in the same directory as the config header
636# that is generated.  The stamp files are numbered to have different names.
637
638# Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the
639# loop where config.status creates the headers, so we can generate
640# our stamp files there.
641AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK],
642[# Compute $1's index in $config_headers.
643_am_arg=$1
644_am_stamp_count=1
645for _am_header in $config_headers :; do
646  case $_am_header in
647    $_am_arg | $_am_arg:* )
648      break ;;
649    * )
650      _am_stamp_count=`expr $_am_stamp_count + 1` ;;
651  esac
652done
653echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
654
655# Copyright (C) 2001-2021 Free Software Foundation, Inc.
656#
657# This file is free software; the Free Software Foundation
658# gives unlimited permission to copy and/or distribute it,
659# with or without modifications, as long as this notice is preserved.
660
661# AM_PROG_INSTALL_SH
662# ------------------
663# Define $install_sh.
664AC_DEFUN([AM_PROG_INSTALL_SH],
665[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
666if test x"${install_sh+set}" != xset; then
667  case $am_aux_dir in
668  *\ * | *\	*)
669    install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
670  *)
671    install_sh="\${SHELL} $am_aux_dir/install-sh"
672  esac
673fi
674AC_SUBST([install_sh])])
675
676# Copyright (C) 2003-2021 Free Software Foundation, Inc.
677#
678# This file is free software; the Free Software Foundation
679# gives unlimited permission to copy and/or distribute it,
680# with or without modifications, as long as this notice is preserved.
681
682# Check whether the underlying file-system supports filenames
683# with a leading dot.  For instance MS-DOS doesn't.
684AC_DEFUN([AM_SET_LEADING_DOT],
685[rm -rf .tst 2>/dev/null
686mkdir .tst 2>/dev/null
687if test -d .tst; then
688  am__leading_dot=.
689else
690  am__leading_dot=_
691fi
692rmdir .tst 2>/dev/null
693AC_SUBST([am__leading_dot])])
694
695# Check to see how 'make' treats includes.	            -*- Autoconf -*-
696
697# Copyright (C) 2001-2021 Free Software Foundation, Inc.
698#
699# This file is free software; the Free Software Foundation
700# gives unlimited permission to copy and/or distribute it,
701# with or without modifications, as long as this notice is preserved.
702
703# AM_MAKE_INCLUDE()
704# -----------------
705# Check whether make has an 'include' directive that can support all
706# the idioms we need for our automatic dependency tracking code.
707AC_DEFUN([AM_MAKE_INCLUDE],
708[AC_MSG_CHECKING([whether ${MAKE-make} supports the include directive])
709cat > confinc.mk << 'END'
710am__doit:
711	@echo this is the am__doit target >confinc.out
712.PHONY: am__doit
713END
714am__include="#"
715am__quote=
716# BSD make does it like this.
717echo '.include "confinc.mk" # ignored' > confmf.BSD
718# Other make implementations (GNU, Solaris 10, AIX) do it like this.
719echo 'include confinc.mk # ignored' > confmf.GNU
720_am_result=no
721for s in GNU BSD; do
722  AM_RUN_LOG([${MAKE-make} -f confmf.$s && cat confinc.out])
723  AS_CASE([$?:`cat confinc.out 2>/dev/null`],
724      ['0:this is the am__doit target'],
725      [AS_CASE([$s],
726          [BSD], [am__include='.include' am__quote='"'],
727          [am__include='include' am__quote=''])])
728  if test "$am__include" != "#"; then
729    _am_result="yes ($s style)"
730    break
731  fi
732done
733rm -f confinc.* confmf.*
734AC_MSG_RESULT([${_am_result}])
735AC_SUBST([am__include])])
736AC_SUBST([am__quote])])
737
738# Fake the existence of programs that GNU maintainers use.  -*- Autoconf -*-
739
740# Copyright (C) 1997-2021 Free Software Foundation, Inc.
741#
742# This file is free software; the Free Software Foundation
743# gives unlimited permission to copy and/or distribute it,
744# with or without modifications, as long as this notice is preserved.
745
746# AM_MISSING_PROG(NAME, PROGRAM)
747# ------------------------------
748AC_DEFUN([AM_MISSING_PROG],
749[AC_REQUIRE([AM_MISSING_HAS_RUN])
750$1=${$1-"${am_missing_run}$2"}
751AC_SUBST($1)])
752
753# AM_MISSING_HAS_RUN
754# ------------------
755# Define MISSING if not defined so far and test if it is modern enough.
756# If it is, set am_missing_run to use it, otherwise, to nothing.
757AC_DEFUN([AM_MISSING_HAS_RUN],
758[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
759AC_REQUIRE_AUX_FILE([missing])dnl
760if test x"${MISSING+set}" != xset; then
761  MISSING="\${SHELL} '$am_aux_dir/missing'"
762fi
763# Use eval to expand $SHELL
764if eval "$MISSING --is-lightweight"; then
765  am_missing_run="$MISSING "
766else
767  am_missing_run=
768  AC_MSG_WARN(['missing' script is too old or missing])
769fi
770])
771
772#  -*- Autoconf -*-
773# Obsolete and "removed" macros, that must however still report explicit
774# error messages when used, to smooth transition.
775#
776# Copyright (C) 1996-2021 Free Software Foundation, Inc.
777#
778# This file is free software; the Free Software Foundation
779# gives unlimited permission to copy and/or distribute it,
780# with or without modifications, as long as this notice is preserved.
781
782AC_DEFUN([AM_CONFIG_HEADER],
783[AC_DIAGNOSE([obsolete],
784['$0': this macro is obsolete.
785You should use the 'AC][_CONFIG_HEADERS' macro instead.])dnl
786AC_CONFIG_HEADERS($@)])
787
788AC_DEFUN([AM_PROG_CC_STDC],
789[AC_PROG_CC
790am_cv_prog_cc_stdc=$ac_cv_prog_cc_stdc
791AC_DIAGNOSE([obsolete],
792['$0': this macro is obsolete.
793You should simply use the 'AC][_PROG_CC' macro instead.
794Also, your code should no longer depend upon 'am_cv_prog_cc_stdc',
795but upon 'ac_cv_prog_cc_stdc'.])])
796
797AC_DEFUN([AM_C_PROTOTYPES],
798         [AC_FATAL([automatic de-ANSI-fication support has been removed])])
799AU_DEFUN([fp_C_PROTOTYPES], [AM_C_PROTOTYPES])
800
801# Helper functions for option handling.                     -*- Autoconf -*-
802
803# Copyright (C) 2001-2021 Free Software Foundation, Inc.
804#
805# This file is free software; the Free Software Foundation
806# gives unlimited permission to copy and/or distribute it,
807# with or without modifications, as long as this notice is preserved.
808
809# _AM_MANGLE_OPTION(NAME)
810# -----------------------
811AC_DEFUN([_AM_MANGLE_OPTION],
812[[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
813
814# _AM_SET_OPTION(NAME)
815# --------------------
816# Set option NAME.  Presently that only means defining a flag for this option.
817AC_DEFUN([_AM_SET_OPTION],
818[m4_define(_AM_MANGLE_OPTION([$1]), [1])])
819
820# _AM_SET_OPTIONS(OPTIONS)
821# ------------------------
822# OPTIONS is a space-separated list of Automake options.
823AC_DEFUN([_AM_SET_OPTIONS],
824[m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
825
826# _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
827# -------------------------------------------
828# Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
829AC_DEFUN([_AM_IF_OPTION],
830[m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
831
832# Copyright (C) 1999-2021 Free Software Foundation, Inc.
833#
834# This file is free software; the Free Software Foundation
835# gives unlimited permission to copy and/or distribute it,
836# with or without modifications, as long as this notice is preserved.
837
838# _AM_PROG_CC_C_O
839# ---------------
840# Like AC_PROG_CC_C_O, but changed for automake.  We rewrite AC_PROG_CC
841# to automatically call this.
842AC_DEFUN([_AM_PROG_CC_C_O],
843[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
844AC_REQUIRE_AUX_FILE([compile])dnl
845AC_LANG_PUSH([C])dnl
846AC_CACHE_CHECK(
847  [whether $CC understands -c and -o together],
848  [am_cv_prog_cc_c_o],
849  [AC_LANG_CONFTEST([AC_LANG_PROGRAM([])])
850  # Make sure it works both with $CC and with simple cc.
851  # Following AC_PROG_CC_C_O, we do the test twice because some
852  # compilers refuse to overwrite an existing .o file with -o,
853  # though they will create one.
854  am_cv_prog_cc_c_o=yes
855  for am_i in 1 2; do
856    if AM_RUN_LOG([$CC -c conftest.$ac_ext -o conftest2.$ac_objext]) \
857         && test -f conftest2.$ac_objext; then
858      : OK
859    else
860      am_cv_prog_cc_c_o=no
861      break
862    fi
863  done
864  rm -f core conftest*
865  unset am_i])
866if test "$am_cv_prog_cc_c_o" != yes; then
867   # Losing compiler, so override with the script.
868   # FIXME: It is wrong to rewrite CC.
869   # But if we don't then we get into trouble of one sort or another.
870   # A longer-term fix would be to have automake use am__CC in this case,
871   # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
872   CC="$am_aux_dir/compile $CC"
873fi
874AC_LANG_POP([C])])
875
876# For backward compatibility.
877AC_DEFUN_ONCE([AM_PROG_CC_C_O], [AC_REQUIRE([AC_PROG_CC])])
878
879# Copyright (C) 2001-2021 Free Software Foundation, Inc.
880#
881# This file is free software; the Free Software Foundation
882# gives unlimited permission to copy and/or distribute it,
883# with or without modifications, as long as this notice is preserved.
884
885# AM_RUN_LOG(COMMAND)
886# -------------------
887# Run COMMAND, save the exit status in ac_status, and log it.
888# (This has been adapted from Autoconf's _AC_RUN_LOG macro.)
889AC_DEFUN([AM_RUN_LOG],
890[{ echo "$as_me:$LINENO: $1" >&AS_MESSAGE_LOG_FD
891   ($1) >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD
892   ac_status=$?
893   echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
894   (exit $ac_status); }])
895
896# Check to make sure that the build environment is sane.    -*- Autoconf -*-
897
898# Copyright (C) 1996-2021 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_SANITY_CHECK
905# ---------------
906AC_DEFUN([AM_SANITY_CHECK],
907[AC_MSG_CHECKING([whether build environment is sane])
908# Reject unsafe characters in $srcdir or the absolute working directory
909# name.  Accept space and tab only in the latter.
910am_lf='
911'
912case `pwd` in
913  *[[\\\"\#\$\&\'\`$am_lf]]*)
914    AC_MSG_ERROR([unsafe absolute working directory name]);;
915esac
916case $srcdir in
917  *[[\\\"\#\$\&\'\`$am_lf\ \	]]*)
918    AC_MSG_ERROR([unsafe srcdir value: '$srcdir']);;
919esac
920
921# Do 'set' in a subshell so we don't clobber the current shell's
922# arguments.  Must try -L first in case configure is actually a
923# symlink; some systems play weird games with the mod time of symlinks
924# (eg FreeBSD returns the mod time of the symlink's containing
925# directory).
926if (
927   am_has_slept=no
928   for am_try in 1 2; do
929     echo "timestamp, slept: $am_has_slept" > conftest.file
930     set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
931     if test "$[*]" = "X"; then
932	# -L didn't work.
933	set X `ls -t "$srcdir/configure" conftest.file`
934     fi
935     if test "$[*]" != "X $srcdir/configure conftest.file" \
936	&& test "$[*]" != "X conftest.file $srcdir/configure"; then
937
938	# If neither matched, then we have a broken ls.  This can happen
939	# if, for instance, CONFIG_SHELL is bash and it inherits a
940	# broken ls alias from the environment.  This has actually
941	# happened.  Such a system could not be considered "sane".
942	AC_MSG_ERROR([ls -t appears to fail.  Make sure there is not a broken
943  alias in your environment])
944     fi
945     if test "$[2]" = conftest.file || test $am_try -eq 2; then
946       break
947     fi
948     # Just in case.
949     sleep 1
950     am_has_slept=yes
951   done
952   test "$[2]" = conftest.file
953   )
954then
955   # Ok.
956   :
957else
958   AC_MSG_ERROR([newly created file is older than distributed files!
959Check your system clock])
960fi
961AC_MSG_RESULT([yes])
962# If we didn't sleep, we still need to ensure time stamps of config.status and
963# generated files are strictly newer.
964am_sleep_pid=
965if grep 'slept: no' conftest.file >/dev/null 2>&1; then
966  ( sleep 1 ) &
967  am_sleep_pid=$!
968fi
969AC_CONFIG_COMMANDS_PRE(
970  [AC_MSG_CHECKING([that generated files are newer than configure])
971   if test -n "$am_sleep_pid"; then
972     # Hide warnings about reused PIDs.
973     wait $am_sleep_pid 2>/dev/null
974   fi
975   AC_MSG_RESULT([done])])
976rm -f conftest.file
977])
978
979# Copyright (C) 2009-2021 Free Software Foundation, Inc.
980#
981# This file is free software; the Free Software Foundation
982# gives unlimited permission to copy and/or distribute it,
983# with or without modifications, as long as this notice is preserved.
984
985# AM_SILENT_RULES([DEFAULT])
986# --------------------------
987# Enable less verbose build rules; with the default set to DEFAULT
988# ("yes" being less verbose, "no" or empty being verbose).
989AC_DEFUN([AM_SILENT_RULES],
990[AC_ARG_ENABLE([silent-rules], [dnl
991AS_HELP_STRING(
992  [--enable-silent-rules],
993  [less verbose build output (undo: "make V=1")])
994AS_HELP_STRING(
995  [--disable-silent-rules],
996  [verbose build output (undo: "make V=0")])dnl
997])
998case $enable_silent_rules in @%:@ (((
999  yes) AM_DEFAULT_VERBOSITY=0;;
1000   no) AM_DEFAULT_VERBOSITY=1;;
1001    *) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);;
1002esac
1003dnl
1004dnl A few 'make' implementations (e.g., NonStop OS and NextStep)
1005dnl do not support nested variable expansions.
1006dnl See automake bug#9928 and bug#10237.
1007am_make=${MAKE-make}
1008AC_CACHE_CHECK([whether $am_make supports nested variables],
1009   [am_cv_make_support_nested_variables],
1010   [if AS_ECHO([['TRUE=$(BAR$(V))
1011BAR0=false
1012BAR1=true
1013V=1
1014am__doit:
1015	@$(TRUE)
1016.PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then
1017  am_cv_make_support_nested_variables=yes
1018else
1019  am_cv_make_support_nested_variables=no
1020fi])
1021if test $am_cv_make_support_nested_variables = yes; then
1022  dnl Using '$V' instead of '$(V)' breaks IRIX make.
1023  AM_V='$(V)'
1024  AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
1025else
1026  AM_V=$AM_DEFAULT_VERBOSITY
1027  AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
1028fi
1029AC_SUBST([AM_V])dnl
1030AM_SUBST_NOTMAKE([AM_V])dnl
1031AC_SUBST([AM_DEFAULT_V])dnl
1032AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl
1033AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
1034AM_BACKSLASH='\'
1035AC_SUBST([AM_BACKSLASH])dnl
1036_AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
1037])
1038
1039# Copyright (C) 2001-2021 Free Software Foundation, Inc.
1040#
1041# This file is free software; the Free Software Foundation
1042# gives unlimited permission to copy and/or distribute it,
1043# with or without modifications, as long as this notice is preserved.
1044
1045# AM_PROG_INSTALL_STRIP
1046# ---------------------
1047# One issue with vendor 'install' (even GNU) is that you can't
1048# specify the program used to strip binaries.  This is especially
1049# annoying in cross-compiling environments, where the build's strip
1050# is unlikely to handle the host's binaries.
1051# Fortunately install-sh will honor a STRIPPROG variable, so we
1052# always use install-sh in "make install-strip", and initialize
1053# STRIPPROG with the value of the STRIP variable (set by the user).
1054AC_DEFUN([AM_PROG_INSTALL_STRIP],
1055[AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
1056# Installed binaries are usually stripped using 'strip' when the user
1057# run "make install-strip".  However 'strip' might not be the right
1058# tool to use in cross-compilation environments, therefore Automake
1059# will honor the 'STRIP' environment variable to overrule this program.
1060dnl Don't test for $cross_compiling = yes, because it might be 'maybe'.
1061if test "$cross_compiling" != no; then
1062  AC_CHECK_TOOL([STRIP], [strip], :)
1063fi
1064INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
1065AC_SUBST([INSTALL_STRIP_PROGRAM])])
1066
1067# Copyright (C) 2006-2021 Free Software Foundation, Inc.
1068#
1069# This file is free software; the Free Software Foundation
1070# gives unlimited permission to copy and/or distribute it,
1071# with or without modifications, as long as this notice is preserved.
1072
1073# _AM_SUBST_NOTMAKE(VARIABLE)
1074# ---------------------------
1075# Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
1076# This macro is traced by Automake.
1077AC_DEFUN([_AM_SUBST_NOTMAKE])
1078
1079# AM_SUBST_NOTMAKE(VARIABLE)
1080# --------------------------
1081# Public sister of _AM_SUBST_NOTMAKE.
1082AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
1083
1084# Check how to create a tarball.                            -*- Autoconf -*-
1085
1086# Copyright (C) 2004-2021 Free Software Foundation, Inc.
1087#
1088# This file is free software; the Free Software Foundation
1089# gives unlimited permission to copy and/or distribute it,
1090# with or without modifications, as long as this notice is preserved.
1091
1092# _AM_PROG_TAR(FORMAT)
1093# --------------------
1094# Check how to create a tarball in format FORMAT.
1095# FORMAT should be one of 'v7', 'ustar', or 'pax'.
1096#
1097# Substitute a variable $(am__tar) that is a command
1098# writing to stdout a FORMAT-tarball containing the directory
1099# $tardir.
1100#     tardir=directory && $(am__tar) > result.tar
1101#
1102# Substitute a variable $(am__untar) that extract such
1103# a tarball read from stdin.
1104#     $(am__untar) < result.tar
1105#
1106AC_DEFUN([_AM_PROG_TAR],
1107[# Always define AMTAR for backward compatibility.  Yes, it's still used
1108# in the wild :-(  We should find a proper way to deprecate it ...
1109AC_SUBST([AMTAR], ['$${TAR-tar}'])
1110
1111# We'll loop over all known methods to create a tar archive until one works.
1112_am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
1113
1114m4_if([$1], [v7],
1115  [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],
1116
1117  [m4_case([$1],
1118    [ustar],
1119     [# The POSIX 1988 'ustar' format is defined with fixed-size fields.
1120      # There is notably a 21 bits limit for the UID and the GID.  In fact,
1121      # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343
1122      # and bug#13588).
1123      am_max_uid=2097151 # 2^21 - 1
1124      am_max_gid=$am_max_uid
1125      # The $UID and $GID variables are not portable, so we need to resort
1126      # to the POSIX-mandated id(1) utility.  Errors in the 'id' calls
1127      # below are definitely unexpected, so allow the users to see them
1128      # (that is, avoid stderr redirection).
1129      am_uid=`id -u || echo unknown`
1130      am_gid=`id -g || echo unknown`
1131      AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format])
1132      if test $am_uid -le $am_max_uid; then
1133         AC_MSG_RESULT([yes])
1134      else
1135         AC_MSG_RESULT([no])
1136         _am_tools=none
1137      fi
1138      AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format])
1139      if test $am_gid -le $am_max_gid; then
1140         AC_MSG_RESULT([yes])
1141      else
1142        AC_MSG_RESULT([no])
1143        _am_tools=none
1144      fi],
1145
1146  [pax],
1147    [],
1148
1149  [m4_fatal([Unknown tar format])])
1150
1151  AC_MSG_CHECKING([how to create a $1 tar archive])
1152
1153  # Go ahead even if we have the value already cached.  We do so because we
1154  # need to set the values for the 'am__tar' and 'am__untar' variables.
1155  _am_tools=${am_cv_prog_tar_$1-$_am_tools}
1156
1157  for _am_tool in $_am_tools; do
1158    case $_am_tool in
1159    gnutar)
1160      for _am_tar in tar gnutar gtar; do
1161        AM_RUN_LOG([$_am_tar --version]) && break
1162      done
1163      am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
1164      am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
1165      am__untar="$_am_tar -xf -"
1166      ;;
1167    plaintar)
1168      # Must skip GNU tar: if it does not support --format= it doesn't create
1169      # ustar tarball either.
1170      (tar --version) >/dev/null 2>&1 && continue
1171      am__tar='tar chf - "$$tardir"'
1172      am__tar_='tar chf - "$tardir"'
1173      am__untar='tar xf -'
1174      ;;
1175    pax)
1176      am__tar='pax -L -x $1 -w "$$tardir"'
1177      am__tar_='pax -L -x $1 -w "$tardir"'
1178      am__untar='pax -r'
1179      ;;
1180    cpio)
1181      am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
1182      am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
1183      am__untar='cpio -i -H $1 -d'
1184      ;;
1185    none)
1186      am__tar=false
1187      am__tar_=false
1188      am__untar=false
1189      ;;
1190    esac
1191
1192    # If the value was cached, stop now.  We just wanted to have am__tar
1193    # and am__untar set.
1194    test -n "${am_cv_prog_tar_$1}" && break
1195
1196    # tar/untar a dummy directory, and stop if the command works.
1197    rm -rf conftest.dir
1198    mkdir conftest.dir
1199    echo GrepMe > conftest.dir/file
1200    AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
1201    rm -rf conftest.dir
1202    if test -s conftest.tar; then
1203      AM_RUN_LOG([$am__untar <conftest.tar])
1204      AM_RUN_LOG([cat conftest.dir/file])
1205      grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
1206    fi
1207  done
1208  rm -rf conftest.dir
1209
1210  AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
1211  AC_MSG_RESULT([$am_cv_prog_tar_$1])])
1212
1213AC_SUBST([am__tar])
1214AC_SUBST([am__untar])
1215]) # _AM_PROG_TAR
1216
1217m4_include([m4/ax_compiler_vendor.m4])
1218m4_include([m4/ax_pkg_config.m4])
1219m4_include([m4/libtool.m4])
1220m4_include([m4/ltoptions.m4])
1221m4_include([m4/ltsugar.m4])
1222m4_include([m4/ltversion.m4])
1223m4_include([m4/lt~obsolete.m4])
1224