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f4622ec1 1# generated automatically by aclocal 1.16.5 -*- Autoconf -*-
a24b9f23 2
f4622ec1 3# Copyright (C) 1996-2021 Free Software Foundation, Inc.
fe5b0fdd 4
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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.
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8
9# This program is distributed in the hope that it will be useful,
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10# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
11# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
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f4622ec1 23# Copyright (C) 2002-2021 Free Software Foundation, Inc.
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24#
25# This file is free software; the Free Software Foundation
26# gives unlimited permission to copy and/or distribute it,
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f4622ec1 181# Copyright (C) 1999-2021 Free Software Foundation, Inc.
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182#
183# This file is free software; the Free Software Foundation
184# gives unlimited permission to copy and/or distribute it,
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8553de6f 187
a24b9f23 188# There are a few dirty hacks below to avoid letting 'AC_PROG_CC' be
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292 msvc7 | msvc7msys | msvisualcpp | msvcmsys)
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299 none) break ;;
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442# This file is free software; the Free Software Foundation
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446# This macro actually does too much. Some checks are only needed if
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481 # test to see if srcdir already configured
482 if test -f $srcdir/config.status; then
483 AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
484 fi
8553de6f
DH
485fi
486
487# test whether we have cygpath
488if test -z "$CYGPATH_W"; then
489 if (cygpath --version) >/dev/null 2>/dev/null; then
490 CYGPATH_W='cygpath -w'
491 else
492 CYGPATH_W=echo
493 fi
494fi
495AC_SUBST([CYGPATH_W])
496
497# Define the identity of the package.
498dnl Distinguish between old-style and new-style calls.
499m4_ifval([$2],
a24b9f23 500[AC_DIAGNOSE([obsolete],
69e9da00 501 [$0: two- and three-arguments forms are deprecated.])
a24b9f23 502m4_ifval([$3], [_AM_SET_OPTION([no-define])])dnl
8553de6f
DH
503 AC_SUBST([PACKAGE], [$1])dnl
504 AC_SUBST([VERSION], [$2])],
505[_AM_SET_OPTIONS([$1])dnl
5b518e92 506dnl Diagnose old-style AC_INIT with new-style AM_AUTOMAKE_INIT.
a24b9f23 507m4_if(
f4622ec1 508 m4_ifset([AC_PACKAGE_NAME], [ok]):m4_ifset([AC_PACKAGE_VERSION], [ok]),
a24b9f23 509 [ok:ok],,
5b518e92 510 [m4_fatal([AC_INIT should be called with package and version arguments])])dnl
8553de6f
DH
511 AC_SUBST([PACKAGE], ['AC_PACKAGE_TARNAME'])dnl
512 AC_SUBST([VERSION], ['AC_PACKAGE_VERSION'])])dnl
513
514_AM_IF_OPTION([no-define],,
a24b9f23
MA
515[AC_DEFINE_UNQUOTED([PACKAGE], ["$PACKAGE"], [Name of package])
516 AC_DEFINE_UNQUOTED([VERSION], ["$VERSION"], [Version number of package])])dnl
8553de6f
DH
517
518# Some tools Automake needs.
519AC_REQUIRE([AM_SANITY_CHECK])dnl
520AC_REQUIRE([AC_ARG_PROGRAM])dnl
a24b9f23
MA
521AM_MISSING_PROG([ACLOCAL], [aclocal-${am__api_version}])
522AM_MISSING_PROG([AUTOCONF], [autoconf])
523AM_MISSING_PROG([AUTOMAKE], [automake-${am__api_version}])
524AM_MISSING_PROG([AUTOHEADER], [autoheader])
525AM_MISSING_PROG([MAKEINFO], [makeinfo])
526AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
527AC_REQUIRE([AM_PROG_INSTALL_STRIP])dnl
528AC_REQUIRE([AC_PROG_MKDIR_P])dnl
529# For better backward compatibility. To be removed once Automake 1.9.x
530# dies out for good. For more background, see:
0cd94b5e
TM
531# <https://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
532# <https://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
a24b9f23 533AC_SUBST([mkdir_p], ['$(MKDIR_P)'])
db1a8f68
SR
534# We need awk for the "check" target (and possibly the TAP driver). The
535# system "awk" is bad on some platforms.
8553de6f
DH
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])],
a24b9f23
MA
540 [_AM_IF_OPTION([tar-pax], [_AM_PROG_TAR([pax])],
541 [_AM_PROG_TAR([v7])])])
8553de6f
DH
542_AM_IF_OPTION([no-dependencies],,
543[AC_PROVIDE_IFELSE([AC_PROG_CC],
a24b9f23
MA
544 [_AM_DEPENDENCIES([CC])],
545 [m4_define([AC_PROG_CC],
546 m4_defn([AC_PROG_CC])[_AM_DEPENDENCIES([CC])])])dnl
8553de6f 547AC_PROVIDE_IFELSE([AC_PROG_CXX],
a24b9f23
MA
548 [_AM_DEPENDENCIES([CXX])],
549 [m4_define([AC_PROG_CXX],
550 m4_defn([AC_PROG_CXX])[_AM_DEPENDENCIES([CXX])])])dnl
5b518e92 551AC_PROVIDE_IFELSE([AC_PROG_OBJC],
a24b9f23
MA
552 [_AM_DEPENDENCIES([OBJC])],
553 [m4_define([AC_PROG_OBJC],
554 m4_defn([AC_PROG_OBJC])[_AM_DEPENDENCIES([OBJC])])])dnl
69e9da00 555AC_PROVIDE_IFELSE([AC_PROG_OBJCXX],
a24b9f23
MA
556 [_AM_DEPENDENCIES([OBJCXX])],
557 [m4_define([AC_PROG_OBJCXX],
69e9da00 558 m4_defn([AC_PROG_OBJCXX])[_AM_DEPENDENCIES([OBJCXX])])])dnl
8553de6f 559])
f4622ec1
WW
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 "$CSCOPE"; then
570 CSCOPE=cscope
571fi
572AC_SUBST([CSCOPE])
573
69e9da00
TM
574AC_REQUIRE([AM_SILENT_RULES])dnl
575dnl The testsuite driver may need to know about EXEEXT, so add the
576dnl 'am__EXEEXT' conditional if _AM_COMPILER_EXEEXT was seen. This
577dnl macro is hooked onto _AC_COMPILER_EXEEXT early, see below.
a24b9f23
MA
578AC_CONFIG_COMMANDS_PRE(dnl
579[m4_provide_if([_AM_COMPILER_EXEEXT],
580 [AM_CONDITIONAL([am__EXEEXT], [test -n "$EXEEXT"])])])dnl
69e9da00
TM
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
0cd94b5e 613that behaves properly: <https://www.gnu.org/software/coreutils/>.
69e9da00
TM
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
db1a8f68
SR
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])
8553de6f 627
a24b9f23
MA
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
8553de6f
DH
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.
5b518e92 643_am_arg=$1
8553de6f
DH
644_am_stamp_count=1
645for _am_header in $config_headers :; do
646 case $_am_header in
5b518e92 647 $_am_arg | $_am_arg:* )
8553de6f
DH
648 break ;;
649 * )
650 _am_stamp_count=`expr $_am_stamp_count + 1` ;;
651 esac
652done
5b518e92 653echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
8553de6f 654
f4622ec1 655# Copyright (C) 2001-2021 Free Software Foundation, Inc.
8553de6f
DH
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 $install_sh.
664AC_DEFUN([AM_PROG_INSTALL_SH],
665[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
db1a8f68 666if test x"${install_sh+set}" != xset; then
a24b9f23
MA
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])])
8553de6f 675
f4622ec1 676# Copyright (C) 2003-2021 Free Software Foundation, Inc.
8553de6f
DH
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
8553de6f
DH
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
b3db8084
SR
695# Add --enable-maintainer-mode option to configure. -*- Autoconf -*-
696# From Jim Meyering
697
f4622ec1 698# Copyright (C) 1996-2021 Free Software Foundation, Inc.
b3db8084
SR
699#
700# This file is free software; the Free Software Foundation
701# gives unlimited permission to copy and/or distribute it,
702# with or without modifications, as long as this notice is preserved.
703
a24b9f23
MA
704# AM_MAINTAINER_MODE([DEFAULT-MODE])
705# ----------------------------------
706# Control maintainer-specific portions of Makefiles.
707# Default is to disable them, unless 'enable' is passed literally.
708# For symmetry, 'disable' may be passed as well. Anyway, the user
709# can override the default with the --enable/--disable switch.
b3db8084 710AC_DEFUN([AM_MAINTAINER_MODE],
a24b9f23
MA
711[m4_case(m4_default([$1], [disable]),
712 [enable], [m4_define([am_maintainer_other], [disable])],
713 [disable], [m4_define([am_maintainer_other], [enable])],
714 [m4_define([am_maintainer_other], [enable])
715 m4_warn([syntax], [unexpected argument to AM@&t@_MAINTAINER_MODE: $1])])
716AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
717 dnl maintainer-mode's default is 'disable' unless 'enable' is passed
718 AC_ARG_ENABLE([maintainer-mode],
719 [AS_HELP_STRING([--]am_maintainer_other[-maintainer-mode],
720 am_maintainer_other[ make rules and dependencies not useful
721 (and sometimes confusing) to the casual installer])],
722 [USE_MAINTAINER_MODE=$enableval],
723 [USE_MAINTAINER_MODE=]m4_if(am_maintainer_other, [enable], [no], [yes]))
b3db8084 724 AC_MSG_RESULT([$USE_MAINTAINER_MODE])
a24b9f23 725 AM_CONDITIONAL([MAINTAINER_MODE], [test $USE_MAINTAINER_MODE = yes])
b3db8084 726 MAINT=$MAINTAINER_MODE_TRUE
a24b9f23 727 AC_SUBST([MAINT])dnl
b3db8084
SR
728]
729)
730
8553de6f
DH
731# Check to see how 'make' treats includes. -*- Autoconf -*-
732
f4622ec1 733# Copyright (C) 2001-2021 Free Software Foundation, Inc.
8553de6f
DH
734#
735# This file is free software; the Free Software Foundation
736# gives unlimited permission to copy and/or distribute it,
737# with or without modifications, as long as this notice is preserved.
738
8553de6f
DH
739# AM_MAKE_INCLUDE()
740# -----------------
0cd94b5e
TM
741# Check whether make has an 'include' directive that can support all
742# the idioms we need for our automatic dependency tracking code.
8553de6f 743AC_DEFUN([AM_MAKE_INCLUDE],
0cd94b5e
TM
744[AC_MSG_CHECKING([whether ${MAKE-make} supports the include directive])
745cat > confinc.mk << 'END'
8553de6f 746am__doit:
0cd94b5e 747 @echo this is the am__doit target >confinc.out
8553de6f
DH
748.PHONY: am__doit
749END
8553de6f
DH
750am__include="#"
751am__quote=
0cd94b5e
TM
752# BSD make does it like this.
753echo '.include "confinc.mk" # ignored' > confmf.BSD
754# Other make implementations (GNU, Solaris 10, AIX) do it like this.
755echo 'include confinc.mk # ignored' > confmf.GNU
756_am_result=no
757for s in GNU BSD; do
758 AM_RUN_LOG([${MAKE-make} -f confmf.$s && cat confinc.out])
759 AS_CASE([$?:`cat confinc.out 2>/dev/null`],
760 ['0:this is the am__doit target'],
761 [AS_CASE([$s],
762 [BSD], [am__include='.include' am__quote='"'],
763 [am__include='include' am__quote=''])])
764 if test "$am__include" != "#"; then
765 _am_result="yes ($s style)"
766 break
767 fi
768done
769rm -f confinc.* confmf.*
770AC_MSG_RESULT([${_am_result}])
771AC_SUBST([am__include])])
772AC_SUBST([am__quote])])
8553de6f
DH
773
774# Fake the existence of programs that GNU maintainers use. -*- Autoconf -*-
775
f4622ec1 776# Copyright (C) 1997-2021 Free Software Foundation, Inc.
8553de6f
DH
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
8553de6f
DH
782# AM_MISSING_PROG(NAME, PROGRAM)
783# ------------------------------
784AC_DEFUN([AM_MISSING_PROG],
785[AC_REQUIRE([AM_MISSING_HAS_RUN])
786$1=${$1-"${am_missing_run}$2"}
787AC_SUBST($1)])
788
8553de6f
DH
789# AM_MISSING_HAS_RUN
790# ------------------
69e9da00
TM
791# Define MISSING if not defined so far and test if it is modern enough.
792# If it is, set am_missing_run to use it, otherwise, to nothing.
8553de6f
DH
793AC_DEFUN([AM_MISSING_HAS_RUN],
794[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
5b518e92 795AC_REQUIRE_AUX_FILE([missing])dnl
a24b9f23 796if test x"${MISSING+set}" != xset; then
f4622ec1 797 MISSING="\${SHELL} '$am_aux_dir/missing'"
a24b9f23 798fi
8553de6f 799# Use eval to expand $SHELL
69e9da00
TM
800if eval "$MISSING --is-lightweight"; then
801 am_missing_run="$MISSING "
8553de6f
DH
802else
803 am_missing_run=
a24b9f23 804 AC_MSG_WARN(['missing' script is too old or missing])
8553de6f
DH
805fi
806])
807
8553de6f
DH
808# Helper functions for option handling. -*- Autoconf -*-
809
f4622ec1 810# Copyright (C) 2001-2021 Free Software Foundation, Inc.
8553de6f
DH
811#
812# This file is free software; the Free Software Foundation
813# gives unlimited permission to copy and/or distribute it,
814# with or without modifications, as long as this notice is preserved.
815
8553de6f
DH
816# _AM_MANGLE_OPTION(NAME)
817# -----------------------
818AC_DEFUN([_AM_MANGLE_OPTION],
819[[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
820
821# _AM_SET_OPTION(NAME)
a24b9f23 822# --------------------
8553de6f
DH
823# Set option NAME. Presently that only means defining a flag for this option.
824AC_DEFUN([_AM_SET_OPTION],
a24b9f23 825[m4_define(_AM_MANGLE_OPTION([$1]), [1])])
8553de6f
DH
826
827# _AM_SET_OPTIONS(OPTIONS)
a24b9f23 828# ------------------------
8553de6f
DH
829# OPTIONS is a space-separated list of Automake options.
830AC_DEFUN([_AM_SET_OPTIONS],
a24b9f23 831[m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
8553de6f
DH
832
833# _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
834# -------------------------------------------
835# Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
836AC_DEFUN([_AM_IF_OPTION],
837[m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
838
f4622ec1 839# Copyright (C) 1999-2021 Free Software Foundation, Inc.
69e9da00
TM
840#
841# This file is free software; the Free Software Foundation
842# gives unlimited permission to copy and/or distribute it,
843# with or without modifications, as long as this notice is preserved.
844
845# _AM_PROG_CC_C_O
846# ---------------
847# Like AC_PROG_CC_C_O, but changed for automake. We rewrite AC_PROG_CC
848# to automatically call this.
849AC_DEFUN([_AM_PROG_CC_C_O],
850[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
851AC_REQUIRE_AUX_FILE([compile])dnl
852AC_LANG_PUSH([C])dnl
853AC_CACHE_CHECK(
854 [whether $CC understands -c and -o together],
855 [am_cv_prog_cc_c_o],
856 [AC_LANG_CONFTEST([AC_LANG_PROGRAM([])])
857 # Make sure it works both with $CC and with simple cc.
858 # Following AC_PROG_CC_C_O, we do the test twice because some
859 # compilers refuse to overwrite an existing .o file with -o,
860 # though they will create one.
861 am_cv_prog_cc_c_o=yes
862 for am_i in 1 2; do
863 if AM_RUN_LOG([$CC -c conftest.$ac_ext -o conftest2.$ac_objext]) \
864 && test -f conftest2.$ac_objext; then
865 : OK
866 else
867 am_cv_prog_cc_c_o=no
868 break
869 fi
870 done
871 rm -f core conftest*
872 unset am_i])
873if test "$am_cv_prog_cc_c_o" != yes; then
874 # Losing compiler, so override with the script.
875 # FIXME: It is wrong to rewrite CC.
876 # But if we don't then we get into trouble of one sort or another.
877 # A longer-term fix would be to have automake use am__CC in this case,
878 # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
879 CC="$am_aux_dir/compile $CC"
880fi
881AC_LANG_POP([C])])
882
883# For backward compatibility.
884AC_DEFUN_ONCE([AM_PROG_CC_C_O], [AC_REQUIRE([AC_PROG_CC])])
885
f4622ec1 886# Copyright (C) 2001-2021 Free Software Foundation, Inc.
69e9da00
TM
887#
888# This file is free software; the Free Software Foundation
889# gives unlimited permission to copy and/or distribute it,
890# with or without modifications, as long as this notice is preserved.
891
892# AM_RUN_LOG(COMMAND)
893# -------------------
894# Run COMMAND, save the exit status in ac_status, and log it.
895# (This has been adapted from Autoconf's _AC_RUN_LOG macro.)
896AC_DEFUN([AM_RUN_LOG],
897[{ echo "$as_me:$LINENO: $1" >&AS_MESSAGE_LOG_FD
898 ($1) >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD
899 ac_status=$?
900 echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
901 (exit $ac_status); }])
902
8553de6f
DH
903# Check to make sure that the build environment is sane. -*- Autoconf -*-
904
f4622ec1 905# Copyright (C) 1996-2021 Free Software Foundation, Inc.
8553de6f
DH
906#
907# This file is free software; the Free Software Foundation
908# gives unlimited permission to copy and/or distribute it,
909# with or without modifications, as long as this notice is preserved.
910
8553de6f
DH
911# AM_SANITY_CHECK
912# ---------------
fe5b0fdd
DH
913AC_DEFUN([AM_SANITY_CHECK],
914[AC_MSG_CHECKING([whether build environment is sane])
a24b9f23
MA
915# Reject unsafe characters in $srcdir or the absolute working directory
916# name. Accept space and tab only in the latter.
917am_lf='
918'
919case `pwd` in
920 *[[\\\"\#\$\&\'\`$am_lf]]*)
921 AC_MSG_ERROR([unsafe absolute working directory name]);;
922esac
923case $srcdir in
924 *[[\\\"\#\$\&\'\`$am_lf\ \ ]]*)
925 AC_MSG_ERROR([unsafe srcdir value: '$srcdir']);;
926esac
927
928# Do 'set' in a subshell so we don't clobber the current shell's
fe5b0fdd
DH
929# arguments. Must try -L first in case configure is actually a
930# symlink; some systems play weird games with the mod time of symlinks
931# (eg FreeBSD returns the mod time of the symlink's containing
932# directory).
933if (
a24b9f23
MA
934 am_has_slept=no
935 for am_try in 1 2; do
936 echo "timestamp, slept: $am_has_slept" > conftest.file
937 set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
938 if test "$[*]" = "X"; then
939 # -L didn't work.
940 set X `ls -t "$srcdir/configure" conftest.file`
941 fi
942 if test "$[*]" != "X $srcdir/configure conftest.file" \
943 && test "$[*]" != "X conftest.file $srcdir/configure"; then
944
945 # If neither matched, then we have a broken ls. This can happen
946 # if, for instance, CONFIG_SHELL is bash and it inherits a
947 # broken ls alias from the environment. This has actually
948 # happened. Such a system could not be considered "sane".
949 AC_MSG_ERROR([ls -t appears to fail. Make sure there is not a broken
950 alias in your environment])
951 fi
952 if test "$[2]" = conftest.file || test $am_try -eq 2; then
953 break
954 fi
955 # Just in case.
956 sleep 1
957 am_has_slept=yes
958 done
8553de6f 959 test "$[2]" = conftest.file
fe5b0fdd
DH
960 )
961then
962 # Ok.
963 :
964else
965 AC_MSG_ERROR([newly created file is older than distributed files!
966Check your system clock])
967fi
a24b9f23
MA
968AC_MSG_RESULT([yes])
969# If we didn't sleep, we still need to ensure time stamps of config.status and
970# generated files are strictly newer.
971am_sleep_pid=
972if grep 'slept: no' conftest.file >/dev/null 2>&1; then
973 ( sleep 1 ) &
974 am_sleep_pid=$!
975fi
976AC_CONFIG_COMMANDS_PRE(
977 [AC_MSG_CHECKING([that generated files are newer than configure])
978 if test -n "$am_sleep_pid"; then
979 # Hide warnings about reused PIDs.
980 wait $am_sleep_pid 2>/dev/null
981 fi
982 AC_MSG_RESULT([done])])
983rm -f conftest.file
984])
fe5b0fdd 985
f4622ec1 986# Copyright (C) 2009-2021 Free Software Foundation, Inc.
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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_SILENT_RULES([DEFAULT])
993# --------------------------
994# Enable less verbose build rules; with the default set to DEFAULT
995# ("yes" being less verbose, "no" or empty being verbose).
996AC_DEFUN([AM_SILENT_RULES],
997[AC_ARG_ENABLE([silent-rules], [dnl
998AS_HELP_STRING(
999 [--enable-silent-rules],
1000 [less verbose build output (undo: "make V=1")])
1001AS_HELP_STRING(
1002 [--disable-silent-rules],
1003 [verbose build output (undo: "make V=0")])dnl
1004])
1005case $enable_silent_rules in @%:@ (((
1006 yes) AM_DEFAULT_VERBOSITY=0;;
1007 no) AM_DEFAULT_VERBOSITY=1;;
1008 *) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);;
1009esac
1010dnl
1011dnl A few 'make' implementations (e.g., NonStop OS and NextStep)
1012dnl do not support nested variable expansions.
1013dnl See automake bug#9928 and bug#10237.
1014am_make=${MAKE-make}
1015AC_CACHE_CHECK([whether $am_make supports nested variables],
1016 [am_cv_make_support_nested_variables],
1017 [if AS_ECHO([['TRUE=$(BAR$(V))
1018BAR0=false
1019BAR1=true
1020V=1
1021am__doit:
1022 @$(TRUE)
1023.PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then
1024 am_cv_make_support_nested_variables=yes
1025else
1026 am_cv_make_support_nested_variables=no
1027fi])
1028if test $am_cv_make_support_nested_variables = yes; then
1029 dnl Using '$V' instead of '$(V)' breaks IRIX make.
1030 AM_V='$(V)'
1031 AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
1032else
1033 AM_V=$AM_DEFAULT_VERBOSITY
1034 AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
1035fi
1036AC_SUBST([AM_V])dnl
1037AM_SUBST_NOTMAKE([AM_V])dnl
1038AC_SUBST([AM_DEFAULT_V])dnl
1039AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl
1040AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
1041AM_BACKSLASH='\'
1042AC_SUBST([AM_BACKSLASH])dnl
1043_AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
1044])
1045
f4622ec1 1046# Copyright (C) 2001-2021 Free Software Foundation, Inc.
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1047#
1048# This file is free software; the Free Software Foundation
1049# gives unlimited permission to copy and/or distribute it,
1050# with or without modifications, as long as this notice is preserved.
1051
1052# AM_PROG_INSTALL_STRIP
1053# ---------------------
a24b9f23 1054# One issue with vendor 'install' (even GNU) is that you can't
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1055# specify the program used to strip binaries. This is especially
1056# annoying in cross-compiling environments, where the build's strip
1057# is unlikely to handle the host's binaries.
1058# Fortunately install-sh will honor a STRIPPROG variable, so we
a24b9f23 1059# always use install-sh in "make install-strip", and initialize
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1060# STRIPPROG with the value of the STRIP variable (set by the user).
1061AC_DEFUN([AM_PROG_INSTALL_STRIP],
1062[AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
a24b9f23
MA
1063# Installed binaries are usually stripped using 'strip' when the user
1064# run "make install-strip". However 'strip' might not be the right
8553de6f 1065# tool to use in cross-compilation environments, therefore Automake
a24b9f23
MA
1066# will honor the 'STRIP' environment variable to overrule this program.
1067dnl Don't test for $cross_compiling = yes, because it might be 'maybe'.
8553de6f
DH
1068if test "$cross_compiling" != no; then
1069 AC_CHECK_TOOL([STRIP], [strip], :)
fe5b0fdd 1070fi
5b518e92 1071INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
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DH
1072AC_SUBST([INSTALL_STRIP_PROGRAM])])
1073
f4622ec1 1074# Copyright (C) 2006-2021 Free Software Foundation, Inc.
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1075#
1076# This file is free software; the Free Software Foundation
1077# gives unlimited permission to copy and/or distribute it,
1078# with or without modifications, as long as this notice is preserved.
1079
1080# _AM_SUBST_NOTMAKE(VARIABLE)
1081# ---------------------------
1082# Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
1083# This macro is traced by Automake.
1084AC_DEFUN([_AM_SUBST_NOTMAKE])
1085
a24b9f23
MA
1086# AM_SUBST_NOTMAKE(VARIABLE)
1087# --------------------------
1088# Public sister of _AM_SUBST_NOTMAKE.
1089AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
1090
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1091# Check how to create a tarball. -*- Autoconf -*-
1092
f4622ec1 1093# Copyright (C) 2004-2021 Free Software Foundation, Inc.
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1094#
1095# This file is free software; the Free Software Foundation
1096# gives unlimited permission to copy and/or distribute it,
1097# with or without modifications, as long as this notice is preserved.
1098
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1099# _AM_PROG_TAR(FORMAT)
1100# --------------------
1101# Check how to create a tarball in format FORMAT.
a24b9f23 1102# FORMAT should be one of 'v7', 'ustar', or 'pax'.
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1103#
1104# Substitute a variable $(am__tar) that is a command
1105# writing to stdout a FORMAT-tarball containing the directory
1106# $tardir.
1107# tardir=directory && $(am__tar) > result.tar
1108#
1109# Substitute a variable $(am__untar) that extract such
1110# a tarball read from stdin.
1111# $(am__untar) < result.tar
69e9da00 1112#
8553de6f 1113AC_DEFUN([_AM_PROG_TAR],
a24b9f23
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1114[# Always define AMTAR for backward compatibility. Yes, it's still used
1115# in the wild :-( We should find a proper way to deprecate it ...
1116AC_SUBST([AMTAR], ['$${TAR-tar}'])
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1117
1118# We'll loop over all known methods to create a tar archive until one works.
8553de6f 1119_am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
8553de6f 1120
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1121m4_if([$1], [v7],
1122 [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],
1123
1124 [m4_case([$1],
1125 [ustar],
1126 [# The POSIX 1988 'ustar' format is defined with fixed-size fields.
1127 # There is notably a 21 bits limit for the UID and the GID. In fact,
1128 # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343
1129 # and bug#13588).
1130 am_max_uid=2097151 # 2^21 - 1
1131 am_max_gid=$am_max_uid
1132 # The $UID and $GID variables are not portable, so we need to resort
1133 # to the POSIX-mandated id(1) utility. Errors in the 'id' calls
1134 # below are definitely unexpected, so allow the users to see them
1135 # (that is, avoid stderr redirection).
1136 am_uid=`id -u || echo unknown`
1137 am_gid=`id -g || echo unknown`
1138 AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format])
1139 if test $am_uid -le $am_max_uid; then
1140 AC_MSG_RESULT([yes])
1141 else
1142 AC_MSG_RESULT([no])
1143 _am_tools=none
1144 fi
1145 AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format])
1146 if test $am_gid -le $am_max_gid; then
1147 AC_MSG_RESULT([yes])
1148 else
1149 AC_MSG_RESULT([no])
1150 _am_tools=none
1151 fi],
1152
1153 [pax],
1154 [],
1155
1156 [m4_fatal([Unknown tar format])])
1157
1158 AC_MSG_CHECKING([how to create a $1 tar archive])
1159
1160 # Go ahead even if we have the value already cached. We do so because we
1161 # need to set the values for the 'am__tar' and 'am__untar' variables.
1162 _am_tools=${am_cv_prog_tar_$1-$_am_tools}
1163
1164 for _am_tool in $_am_tools; do
1165 case $_am_tool in
1166 gnutar)
1167 for _am_tar in tar gnutar gtar; do
1168 AM_RUN_LOG([$_am_tar --version]) && break
1169 done
1170 am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
1171 am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
1172 am__untar="$_am_tar -xf -"
1173 ;;
1174 plaintar)
1175 # Must skip GNU tar: if it does not support --format= it doesn't create
1176 # ustar tarball either.
1177 (tar --version) >/dev/null 2>&1 && continue
1178 am__tar='tar chf - "$$tardir"'
1179 am__tar_='tar chf - "$tardir"'
1180 am__untar='tar xf -'
1181 ;;
1182 pax)
1183 am__tar='pax -L -x $1 -w "$$tardir"'
1184 am__tar_='pax -L -x $1 -w "$tardir"'
1185 am__untar='pax -r'
1186 ;;
1187 cpio)
1188 am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
1189 am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
1190 am__untar='cpio -i -H $1 -d'
1191 ;;
1192 none)
1193 am__tar=false
1194 am__tar_=false
1195 am__untar=false
1196 ;;
1197 esac
8553de6f 1198
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1199 # If the value was cached, stop now. We just wanted to have am__tar
1200 # and am__untar set.
1201 test -n "${am_cv_prog_tar_$1}" && break
1202
1203 # tar/untar a dummy directory, and stop if the command works.
1204 rm -rf conftest.dir
1205 mkdir conftest.dir
1206 echo GrepMe > conftest.dir/file
1207 AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
1208 rm -rf conftest.dir
1209 if test -s conftest.tar; then
1210 AM_RUN_LOG([$am__untar <conftest.tar])
1211 AM_RUN_LOG([cat conftest.dir/file])
1212 grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
1213 fi
1214 done
1826d287 1215 rm -rf conftest.dir
8553de6f 1216
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1217 AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
1218 AC_MSG_RESULT([$am_cv_prog_tar_$1])])
1219
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1220AC_SUBST([am__tar])
1221AC_SUBST([am__untar])
1222]) # _AM_PROG_TAR
fe5b0fdd 1223