1# generated automatically by aclocal 1.16.3 -*- Autoconf -*-
2
3# Copyright (C) 1996-2020 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) 2002-2020 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# Copyright (C) 2011-2020 Free Software Foundation, Inc.
60#
61# This file is free software; the Free Software Foundation
62# gives unlimited permission to copy and/or distribute it,
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119# AM_AUX_DIR_EXPAND                                         -*- Autoconf -*-
120
121# Copyright (C) 2001-2020 Free Software Foundation, Inc.
122#
123# This file is free software; the Free Software Foundation
124# gives unlimited permission to copy and/or distribute it,
125# with or without modifications, as long as this notice is preserved.
126
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171# AM_CONDITIONAL                                            -*- Autoconf -*-
172
173# Copyright (C) 1997-2020 Free Software Foundation, Inc.
174#
175# This file is free software; the Free Software Foundation
176# gives unlimited permission to copy and/or distribute it,
177# with or without modifications, as long as this notice is preserved.
178
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203
204# Copyright (C) 1999-2020 Free Software Foundation, Inc.
205#
206# This file is free software; the Free Software Foundation
207# gives unlimited permission to copy and/or distribute it,
208# with or without modifications, as long as this notice is preserved.
209
210
211# There are a few dirty hacks below to avoid letting 'AC_PROG_CC' be
212# written in clear, in which case automake, when reading aclocal.m4,
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218# _AM_DEPENDENCIES(NAME)
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264  am_cv_$1_dependencies_compiler_type=none
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287    for i in 1 2 3 4 5 6; do
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331       grep $am__obj sub/conftest.Po > /dev/null 2>&1 &&
332       ${MAKE-make} -s -f confmf > /dev/null 2>&1; then
333      # icc doesn't choke on unknown options, it will just issue warnings
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336      # When given -MP, icc 7.0 and 7.1 complain thusly:
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348  cd ..
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359
360
361# AM_SET_DEPDIR
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369
370
371# AM_DEP_TRACK
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375AS_HELP_STRING(
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377  [do not reject slow dependency extractors])
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380  [speeds up one-time build])])
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390_AM_SUBST_NOTMAKE([am__nodep])dnl
391])
392
393# Generate code to set up dependency tracking.              -*- Autoconf -*-
394
395# Copyright (C) 1999-2020 Free Software Foundation, Inc.
396#
397# This file is free software; the Free Software Foundation
398# gives unlimited permission to copy and/or distribute it,
399# with or without modifications, as long as this notice is preserved.
400
401# _AM_OUTPUT_DEPENDENCY_COMMANDS
402# ------------------------------
403AC_DEFUN([_AM_OUTPUT_DEPENDENCY_COMMANDS],
404[{
405  # Older Autoconf quotes --file arguments for eval, but not when files
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408  # TODO: see whether this extra hack can be removed once we start
409  # requiring Autoconf 2.70 or later.
410  AS_CASE([$CONFIG_FILES],
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435    re-running the configure script with MAKE="gmake" (or whatever is
436    necessary).  You can also try re-running configure with the
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441  AS_UNSET([am_filepart])
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446])# _AM_OUTPUT_DEPENDENCY_COMMANDS
447
448
449# AM_OUTPUT_DEPENDENCY_COMMANDS
450# -----------------------------
451# This macro should only be invoked once -- use via AC_REQUIRE.
452#
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454# This creates each '.Po' and '.Plo' makefile fragment that we'll need in
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459     [AMDEP_TRUE="$AMDEP_TRUE" MAKE="${MAKE-make}"])])
460
461# Do all the work for Automake.                             -*- Autoconf -*-
462
463# Copyright (C) 1996-2020 Free Software Foundation, Inc.
464#
465# This file is free software; the Free Software Foundation
466# gives unlimited permission to copy and/or distribute it,
467# with or without modifications, as long as this notice is preserved.
468
469# This macro actually does too much.  Some checks are only needed if
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472dnl Redefine AC_PROG_CC to automatically invoke _AM_PROG_CC_C_O.
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478# AM_INIT_AUTOMAKE(PACKAGE, VERSION, [NO-DEFINE])
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533_AM_IF_OPTION([no-define],,
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539AC_REQUIRE([AC_ARG_PROGRAM])dnl
540AM_MISSING_PROG([ACLOCAL], [aclocal-${am__api_version}])
541AM_MISSING_PROG([AUTOCONF], [autoconf])
542AM_MISSING_PROG([AUTOMAKE], [automake-${am__api_version}])
543AM_MISSING_PROG([AUTOHEADER], [autoheader])
544AM_MISSING_PROG([MAKEINFO], [makeinfo])
545AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
546AC_REQUIRE([AM_PROG_INSTALL_STRIP])dnl
547AC_REQUIRE([AC_PROG_MKDIR_P])dnl
548# For better backward compatibility.  To be removed once Automake 1.9.x
549# dies out for good.  For more background, see:
550# <https://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
551# <https://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
552AC_SUBST([mkdir_p], ['$(MKDIR_P)'])
553# We need awk for the "check" target (and possibly the TAP driver).  The
554# system "awk" is bad on some platforms.
555AC_REQUIRE([AC_PROG_AWK])dnl
556AC_REQUIRE([AC_PROG_MAKE_SET])dnl
557AC_REQUIRE([AM_SET_LEADING_DOT])dnl
558_AM_IF_OPTION([tar-ustar], [_AM_PROG_TAR([ustar])],
559	      [_AM_IF_OPTION([tar-pax], [_AM_PROG_TAR([pax])],
560			     [_AM_PROG_TAR([v7])])])
561_AM_IF_OPTION([no-dependencies],,
562[AC_PROVIDE_IFELSE([AC_PROG_CC],
563		  [_AM_DEPENDENCIES([CC])],
564		  [m4_define([AC_PROG_CC],
565			     m4_defn([AC_PROG_CC])[_AM_DEPENDENCIES([CC])])])dnl
566AC_PROVIDE_IFELSE([AC_PROG_CXX],
567		  [_AM_DEPENDENCIES([CXX])],
568		  [m4_define([AC_PROG_CXX],
569			     m4_defn([AC_PROG_CXX])[_AM_DEPENDENCIES([CXX])])])dnl
570AC_PROVIDE_IFELSE([AC_PROG_OBJC],
571		  [_AM_DEPENDENCIES([OBJC])],
572		  [m4_define([AC_PROG_OBJC],
573			     m4_defn([AC_PROG_OBJC])[_AM_DEPENDENCIES([OBJC])])])dnl
574AC_PROVIDE_IFELSE([AC_PROG_OBJCXX],
575		  [_AM_DEPENDENCIES([OBJCXX])],
576		  [m4_define([AC_PROG_OBJCXX],
577			     m4_defn([AC_PROG_OBJCXX])[_AM_DEPENDENCIES([OBJCXX])])])dnl
578])
579AC_REQUIRE([AM_SILENT_RULES])dnl
580dnl The testsuite driver may need to know about EXEEXT, so add the
581dnl 'am__EXEEXT' conditional if _AM_COMPILER_EXEEXT was seen.  This
582dnl macro is hooked onto _AC_COMPILER_EXEEXT early, see below.
583AC_CONFIG_COMMANDS_PRE(dnl
584[m4_provide_if([_AM_COMPILER_EXEEXT],
585  [AM_CONDITIONAL([am__EXEEXT], [test -n "$EXEEXT"])])])dnl
586
587# POSIX will say in a future version that running "rm -f" with no argument
588# is OK; and we want to be able to make that assumption in our Makefile
589# recipes.  So use an aggressive probe to check that the usage we want is
590# actually supported "in the wild" to an acceptable degree.
591# See automake bug#10828.
592# To make any issue more visible, cause the running configure to be aborted
593# by default if the 'rm' program in use doesn't match our expectations; the
594# user can still override this though.
595if rm -f && rm -fr && rm -rf; then : OK; else
596  cat >&2 <<'END'
597Oops!
598
599Your 'rm' program seems unable to run without file operands specified
600on the command line, even when the '-f' option is present.  This is contrary
601to the behaviour of most rm programs out there, and not conforming with
602the upcoming POSIX standard: <http://austingroupbugs.net/view.php?id=542>
603
604Please tell bug-automake@gnu.org about your system, including the value
605of your $PATH and any error possibly output before this message.  This
606can help us improve future automake versions.
607
608END
609  if test x"$ACCEPT_INFERIOR_RM_PROGRAM" = x"yes"; then
610    echo 'Configuration will proceed anyway, since you have set the' >&2
611    echo 'ACCEPT_INFERIOR_RM_PROGRAM variable to "yes"' >&2
612    echo >&2
613  else
614    cat >&2 <<'END'
615Aborting the configuration process, to ensure you take notice of the issue.
616
617You can download and install GNU coreutils to get an 'rm' implementation
618that behaves properly: <https://www.gnu.org/software/coreutils/>.
619
620If you want to complete the configuration process using your problematic
621'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM
622to "yes", and re-run configure.
623
624END
625    AC_MSG_ERROR([Your 'rm' program is bad, sorry.])
626  fi
627fi
628dnl The trailing newline in this macro's definition is deliberate, for
629dnl backward compatibility and to allow trailing 'dnl'-style comments
630dnl after the AM_INIT_AUTOMAKE invocation. See automake bug#16841.
631])
632
633dnl Hook into '_AC_COMPILER_EXEEXT' early to learn its expansion.  Do not
634dnl add the conditional right here, as _AC_COMPILER_EXEEXT may be further
635dnl mangled by Autoconf and run in a shell conditional statement.
636m4_define([_AC_COMPILER_EXEEXT],
637m4_defn([_AC_COMPILER_EXEEXT])[m4_provide([_AM_COMPILER_EXEEXT])])
638
639# When config.status generates a header, we must update the stamp-h file.
640# This file resides in the same directory as the config header
641# that is generated.  The stamp files are numbered to have different names.
642
643# Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the
644# loop where config.status creates the headers, so we can generate
645# our stamp files there.
646AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK],
647[# Compute $1's index in $config_headers.
648_am_arg=$1
649_am_stamp_count=1
650for _am_header in $config_headers :; do
651  case $_am_header in
652    $_am_arg | $_am_arg:* )
653      break ;;
654    * )
655      _am_stamp_count=`expr $_am_stamp_count + 1` ;;
656  esac
657done
658echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
659
660# Copyright (C) 2001-2020 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_SH
667# ------------------
668# Define $install_sh.
669AC_DEFUN([AM_PROG_INSTALL_SH],
670[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
671if test x"${install_sh+set}" != xset; then
672  case $am_aux_dir in
673  *\ * | *\	*)
674    install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
675  *)
676    install_sh="\${SHELL} $am_aux_dir/install-sh"
677  esac
678fi
679AC_SUBST([install_sh])])
680
681# Copyright (C) 2003-2020 Free Software Foundation, Inc.
682#
683# This file is free software; the Free Software Foundation
684# gives unlimited permission to copy and/or distribute it,
685# with or without modifications, as long as this notice is preserved.
686
687# Check whether the underlying file-system supports filenames
688# with a leading dot.  For instance MS-DOS doesn't.
689AC_DEFUN([AM_SET_LEADING_DOT],
690[rm -rf .tst 2>/dev/null
691mkdir .tst 2>/dev/null
692if test -d .tst; then
693  am__leading_dot=.
694else
695  am__leading_dot=_
696fi
697rmdir .tst 2>/dev/null
698AC_SUBST([am__leading_dot])])
699
700# Check to see how 'make' treats includes.	            -*- Autoconf -*-
701
702# Copyright (C) 2001-2020 Free Software Foundation, Inc.
703#
704# This file is free software; the Free Software Foundation
705# gives unlimited permission to copy and/or distribute it,
706# with or without modifications, as long as this notice is preserved.
707
708# AM_MAKE_INCLUDE()
709# -----------------
710# Check whether make has an 'include' directive that can support all
711# the idioms we need for our automatic dependency tracking code.
712AC_DEFUN([AM_MAKE_INCLUDE],
713[AC_MSG_CHECKING([whether ${MAKE-make} supports the include directive])
714cat > confinc.mk << 'END'
715am__doit:
716	@echo this is the am__doit target >confinc.out
717.PHONY: am__doit
718END
719am__include="#"
720am__quote=
721# BSD make does it like this.
722echo '.include "confinc.mk" # ignored' > confmf.BSD
723# Other make implementations (GNU, Solaris 10, AIX) do it like this.
724echo 'include confinc.mk # ignored' > confmf.GNU
725_am_result=no
726for s in GNU BSD; do
727  AM_RUN_LOG([${MAKE-make} -f confmf.$s && cat confinc.out])
728  AS_CASE([$?:`cat confinc.out 2>/dev/null`],
729      ['0:this is the am__doit target'],
730      [AS_CASE([$s],
731          [BSD], [am__include='.include' am__quote='"'],
732          [am__include='include' am__quote=''])])
733  if test "$am__include" != "#"; then
734    _am_result="yes ($s style)"
735    break
736  fi
737done
738rm -f confinc.* confmf.*
739AC_MSG_RESULT([${_am_result}])
740AC_SUBST([am__include])])
741AC_SUBST([am__quote])])
742
743# Fake the existence of programs that GNU maintainers use.  -*- Autoconf -*-
744
745# Copyright (C) 1997-2020 Free Software Foundation, Inc.
746#
747# This file is free software; the Free Software Foundation
748# gives unlimited permission to copy and/or distribute it,
749# with or without modifications, as long as this notice is preserved.
750
751# AM_MISSING_PROG(NAME, PROGRAM)
752# ------------------------------
753AC_DEFUN([AM_MISSING_PROG],
754[AC_REQUIRE([AM_MISSING_HAS_RUN])
755$1=${$1-"${am_missing_run}$2"}
756AC_SUBST($1)])
757
758# AM_MISSING_HAS_RUN
759# ------------------
760# Define MISSING if not defined so far and test if it is modern enough.
761# If it is, set am_missing_run to use it, otherwise, to nothing.
762AC_DEFUN([AM_MISSING_HAS_RUN],
763[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
764AC_REQUIRE_AUX_FILE([missing])dnl
765if test x"${MISSING+set}" != xset; then
766  MISSING="\${SHELL} '$am_aux_dir/missing'"
767fi
768# Use eval to expand $SHELL
769if eval "$MISSING --is-lightweight"; then
770  am_missing_run="$MISSING "
771else
772  am_missing_run=
773  AC_MSG_WARN(['missing' script is too old or missing])
774fi
775])
776
777# Helper functions for option handling.                     -*- Autoconf -*-
778
779# Copyright (C) 2001-2020 Free Software Foundation, Inc.
780#
781# This file is free software; the Free Software Foundation
782# gives unlimited permission to copy and/or distribute it,
783# with or without modifications, as long as this notice is preserved.
784
785# _AM_MANGLE_OPTION(NAME)
786# -----------------------
787AC_DEFUN([_AM_MANGLE_OPTION],
788[[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
789
790# _AM_SET_OPTION(NAME)
791# --------------------
792# Set option NAME.  Presently that only means defining a flag for this option.
793AC_DEFUN([_AM_SET_OPTION],
794[m4_define(_AM_MANGLE_OPTION([$1]), [1])])
795
796# _AM_SET_OPTIONS(OPTIONS)
797# ------------------------
798# OPTIONS is a space-separated list of Automake options.
799AC_DEFUN([_AM_SET_OPTIONS],
800[m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
801
802# _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
803# -------------------------------------------
804# Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
805AC_DEFUN([_AM_IF_OPTION],
806[m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
807
808# Copyright (C) 1999-2020 Free Software Foundation, Inc.
809#
810# This file is free software; the Free Software Foundation
811# gives unlimited permission to copy and/or distribute it,
812# with or without modifications, as long as this notice is preserved.
813
814# _AM_PROG_CC_C_O
815# ---------------
816# Like AC_PROG_CC_C_O, but changed for automake.  We rewrite AC_PROG_CC
817# to automatically call this.
818AC_DEFUN([_AM_PROG_CC_C_O],
819[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
820AC_REQUIRE_AUX_FILE([compile])dnl
821AC_LANG_PUSH([C])dnl
822AC_CACHE_CHECK(
823  [whether $CC understands -c and -o together],
824  [am_cv_prog_cc_c_o],
825  [AC_LANG_CONFTEST([AC_LANG_PROGRAM([])])
826  # Make sure it works both with $CC and with simple cc.
827  # Following AC_PROG_CC_C_O, we do the test twice because some
828  # compilers refuse to overwrite an existing .o file with -o,
829  # though they will create one.
830  am_cv_prog_cc_c_o=yes
831  for am_i in 1 2; do
832    if AM_RUN_LOG([$CC -c conftest.$ac_ext -o conftest2.$ac_objext]) \
833         && test -f conftest2.$ac_objext; then
834      : OK
835    else
836      am_cv_prog_cc_c_o=no
837      break
838    fi
839  done
840  rm -f core conftest*
841  unset am_i])
842if test "$am_cv_prog_cc_c_o" != yes; then
843   # Losing compiler, so override with the script.
844   # FIXME: It is wrong to rewrite CC.
845   # But if we don't then we get into trouble of one sort or another.
846   # A longer-term fix would be to have automake use am__CC in this case,
847   # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
848   CC="$am_aux_dir/compile $CC"
849fi
850AC_LANG_POP([C])])
851
852# For backward compatibility.
853AC_DEFUN_ONCE([AM_PROG_CC_C_O], [AC_REQUIRE([AC_PROG_CC])])
854
855# Copyright (C) 2001-2020 Free Software Foundation, Inc.
856#
857# This file is free software; the Free Software Foundation
858# gives unlimited permission to copy and/or distribute it,
859# with or without modifications, as long as this notice is preserved.
860
861# AM_RUN_LOG(COMMAND)
862# -------------------
863# Run COMMAND, save the exit status in ac_status, and log it.
864# (This has been adapted from Autoconf's _AC_RUN_LOG macro.)
865AC_DEFUN([AM_RUN_LOG],
866[{ echo "$as_me:$LINENO: $1" >&AS_MESSAGE_LOG_FD
867   ($1) >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD
868   ac_status=$?
869   echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
870   (exit $ac_status); }])
871
872# Check to make sure that the build environment is sane.    -*- Autoconf -*-
873
874# Copyright (C) 1996-2020 Free Software Foundation, Inc.
875#
876# This file is free software; the Free Software Foundation
877# gives unlimited permission to copy and/or distribute it,
878# with or without modifications, as long as this notice is preserved.
879
880# AM_SANITY_CHECK
881# ---------------
882AC_DEFUN([AM_SANITY_CHECK],
883[AC_MSG_CHECKING([whether build environment is sane])
884# Reject unsafe characters in $srcdir or the absolute working directory
885# name.  Accept space and tab only in the latter.
886am_lf='
887'
888case `pwd` in
889  *[[\\\"\#\$\&\'\`$am_lf]]*)
890    AC_MSG_ERROR([unsafe absolute working directory name]);;
891esac
892case $srcdir in
893  *[[\\\"\#\$\&\'\`$am_lf\ \	]]*)
894    AC_MSG_ERROR([unsafe srcdir value: '$srcdir']);;
895esac
896
897# Do 'set' in a subshell so we don't clobber the current shell's
898# arguments.  Must try -L first in case configure is actually a
899# symlink; some systems play weird games with the mod time of symlinks
900# (eg FreeBSD returns the mod time of the symlink's containing
901# directory).
902if (
903   am_has_slept=no
904   for am_try in 1 2; do
905     echo "timestamp, slept: $am_has_slept" > conftest.file
906     set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
907     if test "$[*]" = "X"; then
908	# -L didn't work.
909	set X `ls -t "$srcdir/configure" conftest.file`
910     fi
911     if test "$[*]" != "X $srcdir/configure conftest.file" \
912	&& test "$[*]" != "X conftest.file $srcdir/configure"; then
913
914	# If neither matched, then we have a broken ls.  This can happen
915	# if, for instance, CONFIG_SHELL is bash and it inherits a
916	# broken ls alias from the environment.  This has actually
917	# happened.  Such a system could not be considered "sane".
918	AC_MSG_ERROR([ls -t appears to fail.  Make sure there is not a broken
919  alias in your environment])
920     fi
921     if test "$[2]" = conftest.file || test $am_try -eq 2; then
922       break
923     fi
924     # Just in case.
925     sleep 1
926     am_has_slept=yes
927   done
928   test "$[2]" = conftest.file
929   )
930then
931   # Ok.
932   :
933else
934   AC_MSG_ERROR([newly created file is older than distributed files!
935Check your system clock])
936fi
937AC_MSG_RESULT([yes])
938# If we didn't sleep, we still need to ensure time stamps of config.status and
939# generated files are strictly newer.
940am_sleep_pid=
941if grep 'slept: no' conftest.file >/dev/null 2>&1; then
942  ( sleep 1 ) &
943  am_sleep_pid=$!
944fi
945AC_CONFIG_COMMANDS_PRE(
946  [AC_MSG_CHECKING([that generated files are newer than configure])
947   if test -n "$am_sleep_pid"; then
948     # Hide warnings about reused PIDs.
949     wait $am_sleep_pid 2>/dev/null
950   fi
951   AC_MSG_RESULT([done])])
952rm -f conftest.file
953])
954
955# Copyright (C) 2009-2020 Free Software Foundation, Inc.
956#
957# This file is free software; the Free Software Foundation
958# gives unlimited permission to copy and/or distribute it,
959# with or without modifications, as long as this notice is preserved.
960
961# AM_SILENT_RULES([DEFAULT])
962# --------------------------
963# Enable less verbose build rules; with the default set to DEFAULT
964# ("yes" being less verbose, "no" or empty being verbose).
965AC_DEFUN([AM_SILENT_RULES],
966[AC_ARG_ENABLE([silent-rules], [dnl
967AS_HELP_STRING(
968  [--enable-silent-rules],
969  [less verbose build output (undo: "make V=1")])
970AS_HELP_STRING(
971  [--disable-silent-rules],
972  [verbose build output (undo: "make V=0")])dnl
973])
974case $enable_silent_rules in @%:@ (((
975  yes) AM_DEFAULT_VERBOSITY=0;;
976   no) AM_DEFAULT_VERBOSITY=1;;
977    *) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);;
978esac
979dnl
980dnl A few 'make' implementations (e.g., NonStop OS and NextStep)
981dnl do not support nested variable expansions.
982dnl See automake bug#9928 and bug#10237.
983am_make=${MAKE-make}
984AC_CACHE_CHECK([whether $am_make supports nested variables],
985   [am_cv_make_support_nested_variables],
986   [if AS_ECHO([['TRUE=$(BAR$(V))
987BAR0=false
988BAR1=true
989V=1
990am__doit:
991	@$(TRUE)
992.PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then
993  am_cv_make_support_nested_variables=yes
994else
995  am_cv_make_support_nested_variables=no
996fi])
997if test $am_cv_make_support_nested_variables = yes; then
998  dnl Using '$V' instead of '$(V)' breaks IRIX make.
999  AM_V='$(V)'
1000  AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
1001else
1002  AM_V=$AM_DEFAULT_VERBOSITY
1003  AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
1004fi
1005AC_SUBST([AM_V])dnl
1006AM_SUBST_NOTMAKE([AM_V])dnl
1007AC_SUBST([AM_DEFAULT_V])dnl
1008AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl
1009AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
1010AM_BACKSLASH='\'
1011AC_SUBST([AM_BACKSLASH])dnl
1012_AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
1013])
1014
1015# Copyright (C) 2001-2020 Free Software Foundation, Inc.
1016#
1017# This file is free software; the Free Software Foundation
1018# gives unlimited permission to copy and/or distribute it,
1019# with or without modifications, as long as this notice is preserved.
1020
1021# AM_PROG_INSTALL_STRIP
1022# ---------------------
1023# One issue with vendor 'install' (even GNU) is that you can't
1024# specify the program used to strip binaries.  This is especially
1025# annoying in cross-compiling environments, where the build's strip
1026# is unlikely to handle the host's binaries.
1027# Fortunately install-sh will honor a STRIPPROG variable, so we
1028# always use install-sh in "make install-strip", and initialize
1029# STRIPPROG with the value of the STRIP variable (set by the user).
1030AC_DEFUN([AM_PROG_INSTALL_STRIP],
1031[AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
1032# Installed binaries are usually stripped using 'strip' when the user
1033# run "make install-strip".  However 'strip' might not be the right
1034# tool to use in cross-compilation environments, therefore Automake
1035# will honor the 'STRIP' environment variable to overrule this program.
1036dnl Don't test for $cross_compiling = yes, because it might be 'maybe'.
1037if test "$cross_compiling" != no; then
1038  AC_CHECK_TOOL([STRIP], [strip], :)
1039fi
1040INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
1041AC_SUBST([INSTALL_STRIP_PROGRAM])])
1042
1043# Copyright (C) 2006-2020 Free Software Foundation, Inc.
1044#
1045# This file is free software; the Free Software Foundation
1046# gives unlimited permission to copy and/or distribute it,
1047# with or without modifications, as long as this notice is preserved.
1048
1049# _AM_SUBST_NOTMAKE(VARIABLE)
1050# ---------------------------
1051# Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
1052# This macro is traced by Automake.
1053AC_DEFUN([_AM_SUBST_NOTMAKE])
1054
1055# AM_SUBST_NOTMAKE(VARIABLE)
1056# --------------------------
1057# Public sister of _AM_SUBST_NOTMAKE.
1058AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
1059
1060# Check how to create a tarball.                            -*- Autoconf -*-
1061
1062# Copyright (C) 2004-2020 Free Software Foundation, Inc.
1063#
1064# This file is free software; the Free Software Foundation
1065# gives unlimited permission to copy and/or distribute it,
1066# with or without modifications, as long as this notice is preserved.
1067
1068# _AM_PROG_TAR(FORMAT)
1069# --------------------
1070# Check how to create a tarball in format FORMAT.
1071# FORMAT should be one of 'v7', 'ustar', or 'pax'.
1072#
1073# Substitute a variable $(am__tar) that is a command
1074# writing to stdout a FORMAT-tarball containing the directory
1075# $tardir.
1076#     tardir=directory && $(am__tar) > result.tar
1077#
1078# Substitute a variable $(am__untar) that extract such
1079# a tarball read from stdin.
1080#     $(am__untar) < result.tar
1081#
1082AC_DEFUN([_AM_PROG_TAR],
1083[# Always define AMTAR for backward compatibility.  Yes, it's still used
1084# in the wild :-(  We should find a proper way to deprecate it ...
1085AC_SUBST([AMTAR], ['$${TAR-tar}'])
1086
1087# We'll loop over all known methods to create a tar archive until one works.
1088_am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
1089
1090m4_if([$1], [v7],
1091  [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],
1092
1093  [m4_case([$1],
1094    [ustar],
1095     [# The POSIX 1988 'ustar' format is defined with fixed-size fields.
1096      # There is notably a 21 bits limit for the UID and the GID.  In fact,
1097      # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343
1098      # and bug#13588).
1099      am_max_uid=2097151 # 2^21 - 1
1100      am_max_gid=$am_max_uid
1101      # The $UID and $GID variables are not portable, so we need to resort
1102      # to the POSIX-mandated id(1) utility.  Errors in the 'id' calls
1103      # below are definitely unexpected, so allow the users to see them
1104      # (that is, avoid stderr redirection).
1105      am_uid=`id -u || echo unknown`
1106      am_gid=`id -g || echo unknown`
1107      AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format])
1108      if test $am_uid -le $am_max_uid; then
1109         AC_MSG_RESULT([yes])
1110      else
1111         AC_MSG_RESULT([no])
1112         _am_tools=none
1113      fi
1114      AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format])
1115      if test $am_gid -le $am_max_gid; then
1116         AC_MSG_RESULT([yes])
1117      else
1118        AC_MSG_RESULT([no])
1119        _am_tools=none
1120      fi],
1121
1122  [pax],
1123    [],
1124
1125  [m4_fatal([Unknown tar format])])
1126
1127  AC_MSG_CHECKING([how to create a $1 tar archive])
1128
1129  # Go ahead even if we have the value already cached.  We do so because we
1130  # need to set the values for the 'am__tar' and 'am__untar' variables.
1131  _am_tools=${am_cv_prog_tar_$1-$_am_tools}
1132
1133  for _am_tool in $_am_tools; do
1134    case $_am_tool in
1135    gnutar)
1136      for _am_tar in tar gnutar gtar; do
1137        AM_RUN_LOG([$_am_tar --version]) && break
1138      done
1139      am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
1140      am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
1141      am__untar="$_am_tar -xf -"
1142      ;;
1143    plaintar)
1144      # Must skip GNU tar: if it does not support --format= it doesn't create
1145      # ustar tarball either.
1146      (tar --version) >/dev/null 2>&1 && continue
1147      am__tar='tar chf - "$$tardir"'
1148      am__tar_='tar chf - "$tardir"'
1149      am__untar='tar xf -'
1150      ;;
1151    pax)
1152      am__tar='pax -L -x $1 -w "$$tardir"'
1153      am__tar_='pax -L -x $1 -w "$tardir"'
1154      am__untar='pax -r'
1155      ;;
1156    cpio)
1157      am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
1158      am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
1159      am__untar='cpio -i -H $1 -d'
1160      ;;
1161    none)
1162      am__tar=false
1163      am__tar_=false
1164      am__untar=false
1165      ;;
1166    esac
1167
1168    # If the value was cached, stop now.  We just wanted to have am__tar
1169    # and am__untar set.
1170    test -n "${am_cv_prog_tar_$1}" && break
1171
1172    # tar/untar a dummy directory, and stop if the command works.
1173    rm -rf conftest.dir
1174    mkdir conftest.dir
1175    echo GrepMe > conftest.dir/file
1176    AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
1177    rm -rf conftest.dir
1178    if test -s conftest.tar; then
1179      AM_RUN_LOG([$am__untar <conftest.tar])
1180      AM_RUN_LOG([cat conftest.dir/file])
1181      grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
1182    fi
1183  done
1184  rm -rf conftest.dir
1185
1186  AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
1187  AC_MSG_RESULT([$am_cv_prog_tar_$1])])
1188
1189AC_SUBST([am__tar])
1190AC_SUBST([am__untar])
1191]) # _AM_PROG_TAR
1192
1193m4_include([m4/00gnulib.m4])
1194m4_include([m4/__inline.m4])
1195m4_include([m4/absolute-header.m4])
1196m4_include([m4/af_alg.m4])
1197m4_include([m4/alloca.m4])
1198m4_include([m4/arpa_inet_h.m4])
1199m4_include([m4/base64.m4])
1200m4_include([m4/builtin-expect.m4])
1201m4_include([m4/byteswap.m4])
1202m4_include([m4/close.m4])
1203m4_include([m4/ctype.m4])
1204m4_include([m4/dup2.m4])
1205m4_include([m4/eealloc.m4])
1206m4_include([m4/environ.m4])
1207m4_include([m4/errno_h.m4])
1208m4_include([m4/exponentd.m4])
1209m4_include([m4/extensions.m4])
1210m4_include([m4/extern-inline.m4])
1211m4_include([m4/fcntl-o.m4])
1212m4_include([m4/fcntl.m4])
1213m4_include([m4/fcntl_h.m4])
1214m4_include([m4/fdopen.m4])
1215m4_include([m4/fflush.m4])
1216m4_include([m4/float_h.m4])
1217m4_include([m4/fpieee.m4])
1218m4_include([m4/fpurge.m4])
1219m4_include([m4/freading.m4])
1220m4_include([m4/fseek.m4])
1221m4_include([m4/fseeko.m4])
1222m4_include([m4/fstat.m4])
1223m4_include([m4/ftell.m4])
1224m4_include([m4/ftello.m4])
1225m4_include([m4/ftruncate.m4])
1226m4_include([m4/gc-hmac-md5.m4])
1227m4_include([m4/gc-hmac-sha1.m4])
1228m4_include([m4/gc-hmac-sha256.m4])
1229m4_include([m4/gc-md5.m4])
1230m4_include([m4/gc-random.m4])
1231m4_include([m4/gc-sha1.m4])
1232m4_include([m4/gc-sha256.m4])
1233m4_include([m4/gc.m4])
1234m4_include([m4/getcwd.m4])
1235m4_include([m4/getdelim.m4])
1236m4_include([m4/getdtablesize.m4])
1237m4_include([m4/getline.m4])
1238m4_include([m4/getpagesize.m4])
1239m4_include([m4/getrusage.m4])
1240m4_include([m4/gettext.m4])
1241m4_include([m4/gettimeofday.m4])
1242m4_include([m4/gl-openssl.m4])
1243m4_include([m4/gnulib-common.m4])
1244m4_include([m4/gnulib-comp.m4])
1245m4_include([m4/gss-extra.m4])
1246m4_include([m4/host-cpu-c-abi.m4])
1247m4_include([m4/iconv.m4])
1248m4_include([m4/include_next.m4])
1249m4_include([m4/inet_pton.m4])
1250m4_include([m4/intlmacosx.m4])
1251m4_include([m4/intmax_t.m4])
1252m4_include([m4/inttypes.m4])
1253m4_include([m4/inttypes_h.m4])
1254m4_include([m4/ioctl.m4])
1255m4_include([m4/isblank.m4])
1256m4_include([m4/largefile.m4])
1257m4_include([m4/ld-output-def.m4])
1258m4_include([m4/ld-version-script.m4])
1259m4_include([m4/lib-ld.m4])
1260m4_include([m4/lib-link.m4])
1261m4_include([m4/lib-prefix.m4])
1262m4_include([m4/libgcrypt.m4])
1263m4_include([m4/libtool.m4])
1264m4_include([m4/limits-h.m4])
1265m4_include([m4/lock.m4])
1266m4_include([m4/lseek.m4])
1267m4_include([m4/lstat.m4])
1268m4_include([m4/ltoptions.m4])
1269m4_include([m4/ltsugar.m4])
1270m4_include([m4/ltversion.m4])
1271m4_include([m4/lt~obsolete.m4])
1272m4_include([m4/malloc.m4])
1273m4_include([m4/malloca.m4])
1274m4_include([m4/manywarnings.m4])
1275m4_include([m4/md5.m4])
1276m4_include([m4/memchr.m4])
1277m4_include([m4/memmem.m4])
1278m4_include([m4/memxor.m4])
1279m4_include([m4/minmax.m4])
1280m4_include([m4/mmap-anon.m4])
1281m4_include([m4/mode_t.m4])
1282m4_include([m4/msvc-inval.m4])
1283m4_include([m4/msvc-nothrow.m4])
1284m4_include([m4/multiarch.m4])
1285m4_include([m4/nanosleep.m4])
1286m4_include([m4/netinet_in_h.m4])
1287m4_include([m4/nls.m4])
1288m4_include([m4/off_t.m4])
1289m4_include([m4/open-cloexec.m4])
1290m4_include([m4/open-slash.m4])
1291m4_include([m4/open.m4])
1292m4_include([m4/pathmax.m4])
1293m4_include([m4/perror.m4])
1294m4_include([m4/pipe.m4])
1295m4_include([m4/po.m4])
1296m4_include([m4/printf.m4])
1297m4_include([m4/progtest.m4])
1298m4_include([m4/pthread-thread.m4])
1299m4_include([m4/pthread_h.m4])
1300m4_include([m4/pthread_rwlock_rdlock.m4])
1301m4_include([m4/pthread_sigmask.m4])
1302m4_include([m4/putenv.m4])
1303m4_include([m4/raise.m4])
1304m4_include([m4/sched_h.m4])
1305m4_include([m4/select.m4])
1306m4_include([m4/semaphore.m4])
1307m4_include([m4/setenv.m4])
1308m4_include([m4/sha1.m4])
1309m4_include([m4/sha256.m4])
1310m4_include([m4/sigaction.m4])
1311m4_include([m4/signal_h.m4])
1312m4_include([m4/signalblocking.m4])
1313m4_include([m4/size_max.m4])
1314m4_include([m4/sleep.m4])
1315m4_include([m4/socketlib.m4])
1316m4_include([m4/sockets.m4])
1317m4_include([m4/socklen.m4])
1318m4_include([m4/sockpfaf.m4])
1319m4_include([m4/ssize_t.m4])
1320m4_include([m4/stat-time.m4])
1321m4_include([m4/stat.m4])
1322m4_include([m4/stdalign.m4])
1323m4_include([m4/stdbool.m4])
1324m4_include([m4/stddef_h.m4])
1325m4_include([m4/stdint.m4])
1326m4_include([m4/stdint_h.m4])
1327m4_include([m4/stdio_h.m4])
1328m4_include([m4/stdlib_h.m4])
1329m4_include([m4/strerror.m4])
1330m4_include([m4/strerror_r.m4])
1331m4_include([m4/string_h.m4])
1332m4_include([m4/strndup.m4])
1333m4_include([m4/strnlen.m4])
1334m4_include([m4/strverscmp.m4])
1335m4_include([m4/symlink.m4])
1336m4_include([m4/sys_ioctl_h.m4])
1337m4_include([m4/sys_resource_h.m4])
1338m4_include([m4/sys_select_h.m4])
1339m4_include([m4/sys_socket_h.m4])
1340m4_include([m4/sys_stat_h.m4])
1341m4_include([m4/sys_time_h.m4])
1342m4_include([m4/sys_types_h.m4])
1343m4_include([m4/sys_uio_h.m4])
1344m4_include([m4/thread.m4])
1345m4_include([m4/threadlib.m4])
1346m4_include([m4/time_h.m4])
1347m4_include([m4/ungetc.m4])
1348m4_include([m4/unistd_h.m4])
1349m4_include([m4/update-header-version.m4])
1350m4_include([m4/usleep.m4])
1351m4_include([m4/valgrind-tests.m4])
1352m4_include([m4/vasnprintf.m4])
1353m4_include([m4/vasprintf.m4])
1354m4_include([m4/visibility.m4])
1355m4_include([m4/warn-on-use.m4])
1356m4_include([m4/warnings.m4])
1357m4_include([m4/wchar_h.m4])
1358m4_include([m4/wchar_t.m4])
1359m4_include([m4/wint_t.m4])
1360m4_include([m4/xsize.m4])
1361m4_include([m4/yield.m4])
1362m4_include([m4/zzgnulib.m4])
1363