xref: /freebsd/contrib/file/aclocal.m4 (revision 8881d206f4e68b564c2c5f50fc717086fc3e827a)
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
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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 -*-
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61# Copyright (C) 2001-2018 Free Software Foundation, Inc.
62#
63# This file is free software; the Free Software Foundation
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65# with or without modifications, as long as this notice is preserved.
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111# AM_CONDITIONAL                                            -*- Autoconf -*-
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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.
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144# Copyright (C) 1999-2018 Free Software Foundation, Inc.
145#
146# This file is free software; the Free Software Foundation
147# gives unlimited permission to copy and/or distribute it,
148# with or without modifications, as long as this notice is preserved.
149
150
151# There are a few dirty hacks below to avoid letting 'AC_PROG_CC' be
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157
158# _AM_DEPENDENCIES(NAME)
159# ----------------------
160# See how the compiler implements dependency checking.
161# NAME is "CC", "CXX", "OBJC", "OBJCXX", "UPC", or "GJC".
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288  cd ..
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300
301# AM_SET_DEPDIR
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305AC_DEFUN([AM_SET_DEPDIR],
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310
311# AM_DEP_TRACK
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314[AC_ARG_ENABLE([dependency-tracking], [dnl
315AS_HELP_STRING(
316  [--enable-dependency-tracking],
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318AS_HELP_STRING(
319  [--disable-dependency-tracking],
320  [speeds up one-time build])])
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332
333# Generate code to set up dependency tracking.              -*- Autoconf -*-
334
335# Copyright (C) 1999-2018 Free Software Foundation, Inc.
336#
337# This file is free software; the Free Software Foundation
338# gives unlimited permission to copy and/or distribute it,
339# with or without modifications, as long as this notice is preserved.
340
341# _AM_OUTPUT_DEPENDENCY_COMMANDS
342# ------------------------------
343AC_DEFUN([_AM_OUTPUT_DEPENDENCY_COMMANDS],
344[{
345  # Older Autoconf quotes --file arguments for eval, but not when files
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348  # TODO: see whether this extra hack can be removed once we start
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350  AS_CASE([$CONFIG_FILES],
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385
386
387# AM_OUTPUT_DEPENDENCY_COMMANDS
388# -----------------------------
389# This macro should only be invoked once -- use via AC_REQUIRE.
390#
391# This code is only required when automatic dependency tracking is enabled.
392# This creates each '.Po' and '.Plo' makefile fragment that we'll need in
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398
399# Do all the work for Automake.                             -*- Autoconf -*-
400
401# Copyright (C) 1996-2018 Free Software Foundation, Inc.
402#
403# This file is free software; the Free Software Foundation
404# gives unlimited permission to copy and/or distribute it,
405# with or without modifications, as long as this notice is preserved.
406
407# This macro actually does too much.  Some checks are only needed if
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410dnl Redefine AC_PROG_CC to automatically invoke _AM_PROG_CC_C_O.
411m4_define([AC_PROG_CC],
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416# AM_INIT_AUTOMAKE(PACKAGE, VERSION, [NO-DEFINE])
417# AM_INIT_AUTOMAKE([OPTIONS])
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444# test whether we have cygpath
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447    CYGPATH_W='cygpath -w'
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470
471_AM_IF_OPTION([no-define],,
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475# Some tools Automake needs.
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477AC_REQUIRE([AC_ARG_PROGRAM])dnl
478AM_MISSING_PROG([ACLOCAL], [aclocal-${am__api_version}])
479AM_MISSING_PROG([AUTOCONF], [autoconf])
480AM_MISSING_PROG([AUTOMAKE], [automake-${am__api_version}])
481AM_MISSING_PROG([AUTOHEADER], [autoheader])
482AM_MISSING_PROG([MAKEINFO], [makeinfo])
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484AC_REQUIRE([AM_PROG_INSTALL_STRIP])dnl
485AC_REQUIRE([AC_PROG_MKDIR_P])dnl
486# For better backward compatibility.  To be removed once Automake 1.9.x
487# dies out for good.  For more background, see:
488# <https://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
489# <https://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
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516])
517AC_REQUIRE([AM_SILENT_RULES])dnl
518dnl The testsuite driver may need to know about EXEEXT, so add the
519dnl 'am__EXEEXT' conditional if _AM_COMPILER_EXEEXT was seen.  This
520dnl macro is hooked onto _AC_COMPILER_EXEEXT early, see below.
521AC_CONFIG_COMMANDS_PRE(dnl
522[m4_provide_if([_AM_COMPILER_EXEEXT],
523  [AM_CONDITIONAL([am__EXEEXT], [test -n "$EXEEXT"])])])dnl
524
525# POSIX will say in a future version that running "rm -f" with no argument
526# is OK; and we want to be able to make that assumption in our Makefile
527# recipes.  So use an aggressive probe to check that the usage we want is
528# actually supported "in the wild" to an acceptable degree.
529# See automake bug#10828.
530# To make any issue more visible, cause the running configure to be aborted
531# by default if the 'rm' program in use doesn't match our expectations; the
532# user can still override this though.
533if rm -f && rm -fr && rm -rf; then : OK; else
534  cat >&2 <<'END'
535Oops!
536
537Your 'rm' program seems unable to run without file operands specified
538on the command line, even when the '-f' option is present.  This is contrary
539to the behaviour of most rm programs out there, and not conforming with
540the upcoming POSIX standard: <http://austingroupbugs.net/view.php?id=542>
541
542Please tell bug-automake@gnu.org about your system, including the value
543of your $PATH and any error possibly output before this message.  This
544can help us improve future automake versions.
545
546END
547  if test x"$ACCEPT_INFERIOR_RM_PROGRAM" = x"yes"; then
548    echo 'Configuration will proceed anyway, since you have set the' >&2
549    echo 'ACCEPT_INFERIOR_RM_PROGRAM variable to "yes"' >&2
550    echo >&2
551  else
552    cat >&2 <<'END'
553Aborting the configuration process, to ensure you take notice of the issue.
554
555You can download and install GNU coreutils to get an 'rm' implementation
556that behaves properly: <https://www.gnu.org/software/coreutils/>.
557
558If you want to complete the configuration process using your problematic
559'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM
560to "yes", and re-run configure.
561
562END
563    AC_MSG_ERROR([Your 'rm' program is bad, sorry.])
564  fi
565fi
566dnl The trailing newline in this macro's definition is deliberate, for
567dnl backward compatibility and to allow trailing 'dnl'-style comments
568dnl after the AM_INIT_AUTOMAKE invocation. See automake bug#16841.
569])
570
571dnl Hook into '_AC_COMPILER_EXEEXT' early to learn its expansion.  Do not
572dnl add the conditional right here, as _AC_COMPILER_EXEEXT may be further
573dnl mangled by Autoconf and run in a shell conditional statement.
574m4_define([_AC_COMPILER_EXEEXT],
575m4_defn([_AC_COMPILER_EXEEXT])[m4_provide([_AM_COMPILER_EXEEXT])])
576
577# When config.status generates a header, we must update the stamp-h file.
578# This file resides in the same directory as the config header
579# that is generated.  The stamp files are numbered to have different names.
580
581# Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the
582# loop where config.status creates the headers, so we can generate
583# our stamp files there.
584AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK],
585[# Compute $1's index in $config_headers.
586_am_arg=$1
587_am_stamp_count=1
588for _am_header in $config_headers :; do
589  case $_am_header in
590    $_am_arg | $_am_arg:* )
591      break ;;
592    * )
593      _am_stamp_count=`expr $_am_stamp_count + 1` ;;
594  esac
595done
596echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
597
598# Copyright (C) 2001-2018 Free Software Foundation, Inc.
599#
600# This file is free software; the Free Software Foundation
601# gives unlimited permission to copy and/or distribute it,
602# with or without modifications, as long as this notice is preserved.
603
604# AM_PROG_INSTALL_SH
605# ------------------
606# Define $install_sh.
607AC_DEFUN([AM_PROG_INSTALL_SH],
608[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
609if test x"${install_sh+set}" != xset; then
610  case $am_aux_dir in
611  *\ * | *\	*)
612    install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
613  *)
614    install_sh="\${SHELL} $am_aux_dir/install-sh"
615  esac
616fi
617AC_SUBST([install_sh])])
618
619# Copyright (C) 2003-2018 Free Software Foundation, Inc.
620#
621# This file is free software; the Free Software Foundation
622# gives unlimited permission to copy and/or distribute it,
623# with or without modifications, as long as this notice is preserved.
624
625# Check whether the underlying file-system supports filenames
626# with a leading dot.  For instance MS-DOS doesn't.
627AC_DEFUN([AM_SET_LEADING_DOT],
628[rm -rf .tst 2>/dev/null
629mkdir .tst 2>/dev/null
630if test -d .tst; then
631  am__leading_dot=.
632else
633  am__leading_dot=_
634fi
635rmdir .tst 2>/dev/null
636AC_SUBST([am__leading_dot])])
637
638# Check to see how 'make' treats includes.	            -*- Autoconf -*-
639
640# Copyright (C) 2001-2018 Free Software Foundation, Inc.
641#
642# This file is free software; the Free Software Foundation
643# gives unlimited permission to copy and/or distribute it,
644# with or without modifications, as long as this notice is preserved.
645
646# AM_MAKE_INCLUDE()
647# -----------------
648# Check whether make has an 'include' directive that can support all
649# the idioms we need for our automatic dependency tracking code.
650AC_DEFUN([AM_MAKE_INCLUDE],
651[AC_MSG_CHECKING([whether ${MAKE-make} supports the include directive])
652cat > confinc.mk << 'END'
653am__doit:
654	@echo this is the am__doit target >confinc.out
655.PHONY: am__doit
656END
657am__include="#"
658am__quote=
659# BSD make does it like this.
660echo '.include "confinc.mk" # ignored' > confmf.BSD
661# Other make implementations (GNU, Solaris 10, AIX) do it like this.
662echo 'include confinc.mk # ignored' > confmf.GNU
663_am_result=no
664for s in GNU BSD; do
665  AM_RUN_LOG([${MAKE-make} -f confmf.$s && cat confinc.out])
666  AS_CASE([$?:`cat confinc.out 2>/dev/null`],
667      ['0:this is the am__doit target'],
668      [AS_CASE([$s],
669          [BSD], [am__include='.include' am__quote='"'],
670          [am__include='include' am__quote=''])])
671  if test "$am__include" != "#"; then
672    _am_result="yes ($s style)"
673    break
674  fi
675done
676rm -f confinc.* confmf.*
677AC_MSG_RESULT([${_am_result}])
678AC_SUBST([am__include])])
679AC_SUBST([am__quote])])
680
681# Fake the existence of programs that GNU maintainers use.  -*- Autoconf -*-
682
683# Copyright (C) 1997-2018 Free Software Foundation, Inc.
684#
685# This file is free software; the Free Software Foundation
686# gives unlimited permission to copy and/or distribute it,
687# with or without modifications, as long as this notice is preserved.
688
689# AM_MISSING_PROG(NAME, PROGRAM)
690# ------------------------------
691AC_DEFUN([AM_MISSING_PROG],
692[AC_REQUIRE([AM_MISSING_HAS_RUN])
693$1=${$1-"${am_missing_run}$2"}
694AC_SUBST($1)])
695
696# AM_MISSING_HAS_RUN
697# ------------------
698# Define MISSING if not defined so far and test if it is modern enough.
699# If it is, set am_missing_run to use it, otherwise, to nothing.
700AC_DEFUN([AM_MISSING_HAS_RUN],
701[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
702AC_REQUIRE_AUX_FILE([missing])dnl
703if test x"${MISSING+set}" != xset; then
704  case $am_aux_dir in
705  *\ * | *\	*)
706    MISSING="\${SHELL} \"$am_aux_dir/missing\"" ;;
707  *)
708    MISSING="\${SHELL} $am_aux_dir/missing" ;;
709  esac
710fi
711# Use eval to expand $SHELL
712if eval "$MISSING --is-lightweight"; then
713  am_missing_run="$MISSING "
714else
715  am_missing_run=
716  AC_MSG_WARN(['missing' script is too old or missing])
717fi
718])
719
720# Helper functions for option handling.                     -*- Autoconf -*-
721
722# Copyright (C) 2001-2018 Free Software Foundation, Inc.
723#
724# This file is free software; the Free Software Foundation
725# gives unlimited permission to copy and/or distribute it,
726# with or without modifications, as long as this notice is preserved.
727
728# _AM_MANGLE_OPTION(NAME)
729# -----------------------
730AC_DEFUN([_AM_MANGLE_OPTION],
731[[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
732
733# _AM_SET_OPTION(NAME)
734# --------------------
735# Set option NAME.  Presently that only means defining a flag for this option.
736AC_DEFUN([_AM_SET_OPTION],
737[m4_define(_AM_MANGLE_OPTION([$1]), [1])])
738
739# _AM_SET_OPTIONS(OPTIONS)
740# ------------------------
741# OPTIONS is a space-separated list of Automake options.
742AC_DEFUN([_AM_SET_OPTIONS],
743[m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
744
745# _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
746# -------------------------------------------
747# Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
748AC_DEFUN([_AM_IF_OPTION],
749[m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
750
751# Copyright (C) 1999-2018 Free Software Foundation, Inc.
752#
753# This file is free software; the Free Software Foundation
754# gives unlimited permission to copy and/or distribute it,
755# with or without modifications, as long as this notice is preserved.
756
757# _AM_PROG_CC_C_O
758# ---------------
759# Like AC_PROG_CC_C_O, but changed for automake.  We rewrite AC_PROG_CC
760# to automatically call this.
761AC_DEFUN([_AM_PROG_CC_C_O],
762[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
763AC_REQUIRE_AUX_FILE([compile])dnl
764AC_LANG_PUSH([C])dnl
765AC_CACHE_CHECK(
766  [whether $CC understands -c and -o together],
767  [am_cv_prog_cc_c_o],
768  [AC_LANG_CONFTEST([AC_LANG_PROGRAM([])])
769  # Make sure it works both with $CC and with simple cc.
770  # Following AC_PROG_CC_C_O, we do the test twice because some
771  # compilers refuse to overwrite an existing .o file with -o,
772  # though they will create one.
773  am_cv_prog_cc_c_o=yes
774  for am_i in 1 2; do
775    if AM_RUN_LOG([$CC -c conftest.$ac_ext -o conftest2.$ac_objext]) \
776         && test -f conftest2.$ac_objext; then
777      : OK
778    else
779      am_cv_prog_cc_c_o=no
780      break
781    fi
782  done
783  rm -f core conftest*
784  unset am_i])
785if test "$am_cv_prog_cc_c_o" != yes; then
786   # Losing compiler, so override with the script.
787   # FIXME: It is wrong to rewrite CC.
788   # But if we don't then we get into trouble of one sort or another.
789   # A longer-term fix would be to have automake use am__CC in this case,
790   # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
791   CC="$am_aux_dir/compile $CC"
792fi
793AC_LANG_POP([C])])
794
795# For backward compatibility.
796AC_DEFUN_ONCE([AM_PROG_CC_C_O], [AC_REQUIRE([AC_PROG_CC])])
797
798# Copyright (C) 2001-2018 Free Software Foundation, Inc.
799#
800# This file is free software; the Free Software Foundation
801# gives unlimited permission to copy and/or distribute it,
802# with or without modifications, as long as this notice is preserved.
803
804# AM_RUN_LOG(COMMAND)
805# -------------------
806# Run COMMAND, save the exit status in ac_status, and log it.
807# (This has been adapted from Autoconf's _AC_RUN_LOG macro.)
808AC_DEFUN([AM_RUN_LOG],
809[{ echo "$as_me:$LINENO: $1" >&AS_MESSAGE_LOG_FD
810   ($1) >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD
811   ac_status=$?
812   echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
813   (exit $ac_status); }])
814
815# Check to make sure that the build environment is sane.    -*- Autoconf -*-
816
817# Copyright (C) 1996-2018 Free Software Foundation, Inc.
818#
819# This file is free software; the Free Software Foundation
820# gives unlimited permission to copy and/or distribute it,
821# with or without modifications, as long as this notice is preserved.
822
823# AM_SANITY_CHECK
824# ---------------
825AC_DEFUN([AM_SANITY_CHECK],
826[AC_MSG_CHECKING([whether build environment is sane])
827# Reject unsafe characters in $srcdir or the absolute working directory
828# name.  Accept space and tab only in the latter.
829am_lf='
830'
831case `pwd` in
832  *[[\\\"\#\$\&\'\`$am_lf]]*)
833    AC_MSG_ERROR([unsafe absolute working directory name]);;
834esac
835case $srcdir in
836  *[[\\\"\#\$\&\'\`$am_lf\ \	]]*)
837    AC_MSG_ERROR([unsafe srcdir value: '$srcdir']);;
838esac
839
840# Do 'set' in a subshell so we don't clobber the current shell's
841# arguments.  Must try -L first in case configure is actually a
842# symlink; some systems play weird games with the mod time of symlinks
843# (eg FreeBSD returns the mod time of the symlink's containing
844# directory).
845if (
846   am_has_slept=no
847   for am_try in 1 2; do
848     echo "timestamp, slept: $am_has_slept" > conftest.file
849     set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
850     if test "$[*]" = "X"; then
851	# -L didn't work.
852	set X `ls -t "$srcdir/configure" conftest.file`
853     fi
854     if test "$[*]" != "X $srcdir/configure conftest.file" \
855	&& test "$[*]" != "X conftest.file $srcdir/configure"; then
856
857	# If neither matched, then we have a broken ls.  This can happen
858	# if, for instance, CONFIG_SHELL is bash and it inherits a
859	# broken ls alias from the environment.  This has actually
860	# happened.  Such a system could not be considered "sane".
861	AC_MSG_ERROR([ls -t appears to fail.  Make sure there is not a broken
862  alias in your environment])
863     fi
864     if test "$[2]" = conftest.file || test $am_try -eq 2; then
865       break
866     fi
867     # Just in case.
868     sleep 1
869     am_has_slept=yes
870   done
871   test "$[2]" = conftest.file
872   )
873then
874   # Ok.
875   :
876else
877   AC_MSG_ERROR([newly created file is older than distributed files!
878Check your system clock])
879fi
880AC_MSG_RESULT([yes])
881# If we didn't sleep, we still need to ensure time stamps of config.status and
882# generated files are strictly newer.
883am_sleep_pid=
884if grep 'slept: no' conftest.file >/dev/null 2>&1; then
885  ( sleep 1 ) &
886  am_sleep_pid=$!
887fi
888AC_CONFIG_COMMANDS_PRE(
889  [AC_MSG_CHECKING([that generated files are newer than configure])
890   if test -n "$am_sleep_pid"; then
891     # Hide warnings about reused PIDs.
892     wait $am_sleep_pid 2>/dev/null
893   fi
894   AC_MSG_RESULT([done])])
895rm -f conftest.file
896])
897
898# Copyright (C) 2009-2018 Free Software Foundation, Inc.
899#
900# This file is free software; the Free Software Foundation
901# gives unlimited permission to copy and/or distribute it,
902# with or without modifications, as long as this notice is preserved.
903
904# AM_SILENT_RULES([DEFAULT])
905# --------------------------
906# Enable less verbose build rules; with the default set to DEFAULT
907# ("yes" being less verbose, "no" or empty being verbose).
908AC_DEFUN([AM_SILENT_RULES],
909[AC_ARG_ENABLE([silent-rules], [dnl
910AS_HELP_STRING(
911  [--enable-silent-rules],
912  [less verbose build output (undo: "make V=1")])
913AS_HELP_STRING(
914  [--disable-silent-rules],
915  [verbose build output (undo: "make V=0")])dnl
916])
917case $enable_silent_rules in @%:@ (((
918  yes) AM_DEFAULT_VERBOSITY=0;;
919   no) AM_DEFAULT_VERBOSITY=1;;
920    *) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);;
921esac
922dnl
923dnl A few 'make' implementations (e.g., NonStop OS and NextStep)
924dnl do not support nested variable expansions.
925dnl See automake bug#9928 and bug#10237.
926am_make=${MAKE-make}
927AC_CACHE_CHECK([whether $am_make supports nested variables],
928   [am_cv_make_support_nested_variables],
929   [if AS_ECHO([['TRUE=$(BAR$(V))
930BAR0=false
931BAR1=true
932V=1
933am__doit:
934	@$(TRUE)
935.PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then
936  am_cv_make_support_nested_variables=yes
937else
938  am_cv_make_support_nested_variables=no
939fi])
940if test $am_cv_make_support_nested_variables = yes; then
941  dnl Using '$V' instead of '$(V)' breaks IRIX make.
942  AM_V='$(V)'
943  AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
944else
945  AM_V=$AM_DEFAULT_VERBOSITY
946  AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
947fi
948AC_SUBST([AM_V])dnl
949AM_SUBST_NOTMAKE([AM_V])dnl
950AC_SUBST([AM_DEFAULT_V])dnl
951AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl
952AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
953AM_BACKSLASH='\'
954AC_SUBST([AM_BACKSLASH])dnl
955_AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
956])
957
958# Copyright (C) 2001-2018 Free Software Foundation, Inc.
959#
960# This file is free software; the Free Software Foundation
961# gives unlimited permission to copy and/or distribute it,
962# with or without modifications, as long as this notice is preserved.
963
964# AM_PROG_INSTALL_STRIP
965# ---------------------
966# One issue with vendor 'install' (even GNU) is that you can't
967# specify the program used to strip binaries.  This is especially
968# annoying in cross-compiling environments, where the build's strip
969# is unlikely to handle the host's binaries.
970# Fortunately install-sh will honor a STRIPPROG variable, so we
971# always use install-sh in "make install-strip", and initialize
972# STRIPPROG with the value of the STRIP variable (set by the user).
973AC_DEFUN([AM_PROG_INSTALL_STRIP],
974[AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
975# Installed binaries are usually stripped using 'strip' when the user
976# run "make install-strip".  However 'strip' might not be the right
977# tool to use in cross-compilation environments, therefore Automake
978# will honor the 'STRIP' environment variable to overrule this program.
979dnl Don't test for $cross_compiling = yes, because it might be 'maybe'.
980if test "$cross_compiling" != no; then
981  AC_CHECK_TOOL([STRIP], [strip], :)
982fi
983INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
984AC_SUBST([INSTALL_STRIP_PROGRAM])])
985
986# Copyright (C) 2006-2018 Free Software Foundation, Inc.
987#
988# This file is free software; the Free Software Foundation
989# gives unlimited permission to copy and/or distribute it,
990# with or without modifications, as long as this notice is preserved.
991
992# _AM_SUBST_NOTMAKE(VARIABLE)
993# ---------------------------
994# Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
995# This macro is traced by Automake.
996AC_DEFUN([_AM_SUBST_NOTMAKE])
997
998# AM_SUBST_NOTMAKE(VARIABLE)
999# --------------------------
1000# Public sister of _AM_SUBST_NOTMAKE.
1001AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
1002
1003# Check how to create a tarball.                            -*- Autoconf -*-
1004
1005# Copyright (C) 2004-2018 Free Software Foundation, Inc.
1006#
1007# This file is free software; the Free Software Foundation
1008# gives unlimited permission to copy and/or distribute it,
1009# with or without modifications, as long as this notice is preserved.
1010
1011# _AM_PROG_TAR(FORMAT)
1012# --------------------
1013# Check how to create a tarball in format FORMAT.
1014# FORMAT should be one of 'v7', 'ustar', or 'pax'.
1015#
1016# Substitute a variable $(am__tar) that is a command
1017# writing to stdout a FORMAT-tarball containing the directory
1018# $tardir.
1019#     tardir=directory && $(am__tar) > result.tar
1020#
1021# Substitute a variable $(am__untar) that extract such
1022# a tarball read from stdin.
1023#     $(am__untar) < result.tar
1024#
1025AC_DEFUN([_AM_PROG_TAR],
1026[# Always define AMTAR for backward compatibility.  Yes, it's still used
1027# in the wild :-(  We should find a proper way to deprecate it ...
1028AC_SUBST([AMTAR], ['$${TAR-tar}'])
1029
1030# We'll loop over all known methods to create a tar archive until one works.
1031_am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
1032
1033m4_if([$1], [v7],
1034  [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],
1035
1036  [m4_case([$1],
1037    [ustar],
1038     [# The POSIX 1988 'ustar' format is defined with fixed-size fields.
1039      # There is notably a 21 bits limit for the UID and the GID.  In fact,
1040      # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343
1041      # and bug#13588).
1042      am_max_uid=2097151 # 2^21 - 1
1043      am_max_gid=$am_max_uid
1044      # The $UID and $GID variables are not portable, so we need to resort
1045      # to the POSIX-mandated id(1) utility.  Errors in the 'id' calls
1046      # below are definitely unexpected, so allow the users to see them
1047      # (that is, avoid stderr redirection).
1048      am_uid=`id -u || echo unknown`
1049      am_gid=`id -g || echo unknown`
1050      AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format])
1051      if test $am_uid -le $am_max_uid; then
1052         AC_MSG_RESULT([yes])
1053      else
1054         AC_MSG_RESULT([no])
1055         _am_tools=none
1056      fi
1057      AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format])
1058      if test $am_gid -le $am_max_gid; then
1059         AC_MSG_RESULT([yes])
1060      else
1061        AC_MSG_RESULT([no])
1062        _am_tools=none
1063      fi],
1064
1065  [pax],
1066    [],
1067
1068  [m4_fatal([Unknown tar format])])
1069
1070  AC_MSG_CHECKING([how to create a $1 tar archive])
1071
1072  # Go ahead even if we have the value already cached.  We do so because we
1073  # need to set the values for the 'am__tar' and 'am__untar' variables.
1074  _am_tools=${am_cv_prog_tar_$1-$_am_tools}
1075
1076  for _am_tool in $_am_tools; do
1077    case $_am_tool in
1078    gnutar)
1079      for _am_tar in tar gnutar gtar; do
1080        AM_RUN_LOG([$_am_tar --version]) && break
1081      done
1082      am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
1083      am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
1084      am__untar="$_am_tar -xf -"
1085      ;;
1086    plaintar)
1087      # Must skip GNU tar: if it does not support --format= it doesn't create
1088      # ustar tarball either.
1089      (tar --version) >/dev/null 2>&1 && continue
1090      am__tar='tar chf - "$$tardir"'
1091      am__tar_='tar chf - "$tardir"'
1092      am__untar='tar xf -'
1093      ;;
1094    pax)
1095      am__tar='pax -L -x $1 -w "$$tardir"'
1096      am__tar_='pax -L -x $1 -w "$tardir"'
1097      am__untar='pax -r'
1098      ;;
1099    cpio)
1100      am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
1101      am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
1102      am__untar='cpio -i -H $1 -d'
1103      ;;
1104    none)
1105      am__tar=false
1106      am__tar_=false
1107      am__untar=false
1108      ;;
1109    esac
1110
1111    # If the value was cached, stop now.  We just wanted to have am__tar
1112    # and am__untar set.
1113    test -n "${am_cv_prog_tar_$1}" && break
1114
1115    # tar/untar a dummy directory, and stop if the command works.
1116    rm -rf conftest.dir
1117    mkdir conftest.dir
1118    echo GrepMe > conftest.dir/file
1119    AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
1120    rm -rf conftest.dir
1121    if test -s conftest.tar; then
1122      AM_RUN_LOG([$am__untar <conftest.tar])
1123      AM_RUN_LOG([cat conftest.dir/file])
1124      grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
1125    fi
1126  done
1127  rm -rf conftest.dir
1128
1129  AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
1130  AC_MSG_RESULT([$am_cv_prog_tar_$1])])
1131
1132AC_SUBST([am__tar])
1133AC_SUBST([am__untar])
1134]) # _AM_PROG_TAR
1135
1136m4_include([m4/libtool.m4])
1137m4_include([m4/ltoptions.m4])
1138m4_include([m4/ltsugar.m4])
1139m4_include([m4/ltversion.m4])
1140m4_include([m4/lt~obsolete.m4])
1141m4_include([m4/visibility.m4])
1142m4_include([acinclude.m4])
1143