| # generated automatically by aclocal 1.16.5 -*- Autoconf -*- | 
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 | # Copyright (C) 1996-2021 Free Software Foundation, Inc. | 
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 | # This file is free software; the Free Software Foundation | 
 | # gives unlimited permission to copy and/or distribute it, | 
 | # with or without modifications, as long as this notice is preserved. | 
 |  | 
 | # This program is distributed in the hope that it will be useful, | 
 | # but WITHOUT ANY WARRANTY, to the extent permitted by law; without | 
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 | # dies out for good.  For more background, see: | 
 | # <https://lists.gnu.org/archive/html/automake/2012-07/msg00001.html> | 
 | # <https://lists.gnu.org/archive/html/automake/2012-07/msg00014.html> | 
 | AC_SUBST([mkdir_p], ['$(MKDIR_P)']) | 
 | # We need awk for the "check" target (and possibly the TAP driver).  The | 
 | # system "awk" is bad on some platforms. | 
 | AC_REQUIRE([AC_PROG_AWK])dnl | 
 | AC_REQUIRE([AC_PROG_MAKE_SET])dnl | 
 | AC_REQUIRE([AM_SET_LEADING_DOT])dnl | 
 | _AM_IF_OPTION([tar-ustar], [_AM_PROG_TAR([ustar])], | 
 | 	      [_AM_IF_OPTION([tar-pax], [_AM_PROG_TAR([pax])], | 
 | 			     [_AM_PROG_TAR([v7])])]) | 
 | _AM_IF_OPTION([no-dependencies],, | 
 | [AC_PROVIDE_IFELSE([AC_PROG_CC], | 
 | 		  [_AM_DEPENDENCIES([CC])], | 
 | 		  [m4_define([AC_PROG_CC], | 
 | 			     m4_defn([AC_PROG_CC])[_AM_DEPENDENCIES([CC])])])dnl | 
 | AC_PROVIDE_IFELSE([AC_PROG_CXX], | 
 | 		  [_AM_DEPENDENCIES([CXX])], | 
 | 		  [m4_define([AC_PROG_CXX], | 
 | 			     m4_defn([AC_PROG_CXX])[_AM_DEPENDENCIES([CXX])])])dnl | 
 | AC_PROVIDE_IFELSE([AC_PROG_OBJC], | 
 | 		  [_AM_DEPENDENCIES([OBJC])], | 
 | 		  [m4_define([AC_PROG_OBJC], | 
 | 			     m4_defn([AC_PROG_OBJC])[_AM_DEPENDENCIES([OBJC])])])dnl | 
 | AC_PROVIDE_IFELSE([AC_PROG_OBJCXX], | 
 | 		  [_AM_DEPENDENCIES([OBJCXX])], | 
 | 		  [m4_define([AC_PROG_OBJCXX], | 
 | 			     m4_defn([AC_PROG_OBJCXX])[_AM_DEPENDENCIES([OBJCXX])])])dnl | 
 | ]) | 
 | # Variables for tags utilities; see am/tags.am | 
 | if test -z "$CTAGS"; then | 
 |   CTAGS=ctags | 
 | fi | 
 | AC_SUBST([CTAGS]) | 
 | if test -z "$ETAGS"; then | 
 |   ETAGS=etags | 
 | fi | 
 | AC_SUBST([ETAGS]) | 
 | if test -z "$CSCOPE"; then | 
 |   CSCOPE=cscope | 
 | fi | 
 | AC_SUBST([CSCOPE]) | 
 |  | 
 | AC_REQUIRE([AM_SILENT_RULES])dnl | 
 | dnl The testsuite driver may need to know about EXEEXT, so add the | 
 | dnl 'am__EXEEXT' conditional if _AM_COMPILER_EXEEXT was seen.  This | 
 | dnl macro is hooked onto _AC_COMPILER_EXEEXT early, see below. | 
 | AC_CONFIG_COMMANDS_PRE(dnl | 
 | [m4_provide_if([_AM_COMPILER_EXEEXT], | 
 |   [AM_CONDITIONAL([am__EXEEXT], [test -n "$EXEEXT"])])])dnl | 
 |  | 
 | # POSIX will say in a future version that running "rm -f" with no argument | 
 | # is OK; and we want to be able to make that assumption in our Makefile | 
 | # recipes.  So use an aggressive probe to check that the usage we want is | 
 | # actually supported "in the wild" to an acceptable degree. | 
 | # See automake bug#10828. | 
 | # To make any issue more visible, cause the running configure to be aborted | 
 | # by default if the 'rm' program in use doesn't match our expectations; the | 
 | # user can still override this though. | 
 | if rm -f && rm -fr && rm -rf; then : OK; else | 
 |   cat >&2 <<'END' | 
 | Oops! | 
 |  | 
 | Your 'rm' program seems unable to run without file operands specified | 
 | on the command line, even when the '-f' option is present.  This is contrary | 
 | to the behaviour of most rm programs out there, and not conforming with | 
 | the upcoming POSIX standard: <http://austingroupbugs.net/view.php?id=542> | 
 |  | 
 | Please tell bug-automake@gnu.org about your system, including the value | 
 | of your $PATH and any error possibly output before this message.  This | 
 | can help us improve future automake versions. | 
 |  | 
 | END | 
 |   if test x"$ACCEPT_INFERIOR_RM_PROGRAM" = x"yes"; then | 
 |     echo 'Configuration will proceed anyway, since you have set the' >&2 | 
 |     echo 'ACCEPT_INFERIOR_RM_PROGRAM variable to "yes"' >&2 | 
 |     echo >&2 | 
 |   else | 
 |     cat >&2 <<'END' | 
 | Aborting the configuration process, to ensure you take notice of the issue. | 
 |  | 
 | You can download and install GNU coreutils to get an 'rm' implementation | 
 | that behaves properly: <https://www.gnu.org/software/coreutils/>. | 
 |  | 
 | If you want to complete the configuration process using your problematic | 
 | 'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM | 
 | to "yes", and re-run configure. | 
 |  | 
 | END | 
 |     AC_MSG_ERROR([Your 'rm' program is bad, sorry.]) | 
 |   fi | 
 | fi | 
 | dnl The trailing newline in this macro's definition is deliberate, for | 
 | dnl backward compatibility and to allow trailing 'dnl'-style comments | 
 | dnl after the AM_INIT_AUTOMAKE invocation. See automake bug#16841. | 
 | ]) | 
 |  | 
 | dnl Hook into '_AC_COMPILER_EXEEXT' early to learn its expansion.  Do not | 
 | dnl add the conditional right here, as _AC_COMPILER_EXEEXT may be further | 
 | dnl mangled by Autoconf and run in a shell conditional statement. | 
 | m4_define([_AC_COMPILER_EXEEXT], | 
 | m4_defn([_AC_COMPILER_EXEEXT])[m4_provide([_AM_COMPILER_EXEEXT])]) | 
 |  | 
 | # When config.status generates a header, we must update the stamp-h file. | 
 | # This file resides in the same directory as the config header | 
 | # that is generated.  The stamp files are numbered to have different names. | 
 |  | 
 | # Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the | 
 | # loop where config.status creates the headers, so we can generate | 
 | # our stamp files there. | 
 | AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK], | 
 | [# Compute $1's index in $config_headers. | 
 | _am_arg=$1 | 
 | _am_stamp_count=1 | 
 | for _am_header in $config_headers :; do | 
 |   case $_am_header in | 
 |     $_am_arg | $_am_arg:* ) | 
 |       break ;; | 
 |     * ) | 
 |       _am_stamp_count=`expr $_am_stamp_count + 1` ;; | 
 |   esac | 
 | done | 
 | echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count]) | 
 |  | 
 | # Copyright (C) 2001-2021 Free Software Foundation, Inc. | 
 | # | 
 | # This file is free software; the Free Software Foundation | 
 | # gives unlimited permission to copy and/or distribute it, | 
 | # with or without modifications, as long as this notice is preserved. | 
 |  | 
 | # AM_PROG_INSTALL_SH | 
 | # ------------------ | 
 | # Define $install_sh. | 
 | AC_DEFUN([AM_PROG_INSTALL_SH], | 
 | [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl | 
 | if test x"${install_sh+set}" != xset; then | 
 |   case $am_aux_dir in | 
 |   *\ * | *\	*) | 
 |     install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;; | 
 |   *) | 
 |     install_sh="\${SHELL} $am_aux_dir/install-sh" | 
 |   esac | 
 | fi | 
 | AC_SUBST([install_sh])]) | 
 |  | 
 | # Copyright (C) 2003-2021 Free Software Foundation, Inc. | 
 | # | 
 | # This file is free software; the Free Software Foundation | 
 | # gives unlimited permission to copy and/or distribute it, | 
 | # with or without modifications, as long as this notice is preserved. | 
 |  | 
 | # Check whether the underlying file-system supports filenames | 
 | # with a leading dot.  For instance MS-DOS doesn't. | 
 | AC_DEFUN([AM_SET_LEADING_DOT], | 
 | [rm -rf .tst 2>/dev/null | 
 | mkdir .tst 2>/dev/null | 
 | if test -d .tst; then | 
 |   am__leading_dot=. | 
 | else | 
 |   am__leading_dot=_ | 
 | fi | 
 | rmdir .tst 2>/dev/null | 
 | AC_SUBST([am__leading_dot])]) | 
 |  | 
 | # Add --enable-maintainer-mode option to configure.         -*- Autoconf -*- | 
 | # From Jim Meyering | 
 |  | 
 | # Copyright (C) 1996-2021 Free Software Foundation, Inc. | 
 | # | 
 | # This file is free software; the Free Software Foundation | 
 | # gives unlimited permission to copy and/or distribute it, | 
 | # with or without modifications, as long as this notice is preserved. | 
 |  | 
 | # AM_MAINTAINER_MODE([DEFAULT-MODE]) | 
 | # ---------------------------------- | 
 | # Control maintainer-specific portions of Makefiles. | 
 | # Default is to disable them, unless 'enable' is passed literally. | 
 | # For symmetry, 'disable' may be passed as well.  Anyway, the user | 
 | # can override the default with the --enable/--disable switch. | 
 | AC_DEFUN([AM_MAINTAINER_MODE], | 
 | [m4_case(m4_default([$1], [disable]), | 
 |        [enable], [m4_define([am_maintainer_other], [disable])], | 
 |        [disable], [m4_define([am_maintainer_other], [enable])], | 
 |        [m4_define([am_maintainer_other], [enable]) | 
 |         m4_warn([syntax], [unexpected argument to AM@&t@_MAINTAINER_MODE: $1])]) | 
 | AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles]) | 
 |   dnl maintainer-mode's default is 'disable' unless 'enable' is passed | 
 |   AC_ARG_ENABLE([maintainer-mode], | 
 |     [AS_HELP_STRING([--]am_maintainer_other[-maintainer-mode], | 
 |       am_maintainer_other[ make rules and dependencies not useful | 
 |       (and sometimes confusing) to the casual installer])], | 
 |     [USE_MAINTAINER_MODE=$enableval], | 
 |     [USE_MAINTAINER_MODE=]m4_if(am_maintainer_other, [enable], [no], [yes])) | 
 |   AC_MSG_RESULT([$USE_MAINTAINER_MODE]) | 
 |   AM_CONDITIONAL([MAINTAINER_MODE], [test $USE_MAINTAINER_MODE = yes]) | 
 |   MAINT=$MAINTAINER_MODE_TRUE | 
 |   AC_SUBST([MAINT])dnl | 
 | ] | 
 | ) | 
 |  | 
 | # Check to see how 'make' treats includes.	            -*- Autoconf -*- | 
 |  | 
 | # Copyright (C) 2001-2021 Free Software Foundation, Inc. | 
 | # | 
 | # This file is free software; the Free Software Foundation | 
 | # gives unlimited permission to copy and/or distribute it, | 
 | # with or without modifications, as long as this notice is preserved. | 
 |  | 
 | # AM_MAKE_INCLUDE() | 
 | # ----------------- | 
 | # Check whether make has an 'include' directive that can support all | 
 | # the idioms we need for our automatic dependency tracking code. | 
 | AC_DEFUN([AM_MAKE_INCLUDE], | 
 | [AC_MSG_CHECKING([whether ${MAKE-make} supports the include directive]) | 
 | cat > confinc.mk << 'END' | 
 | am__doit: | 
 | 	@echo this is the am__doit target >confinc.out | 
 | .PHONY: am__doit | 
 | END | 
 | am__include="#" | 
 | am__quote= | 
 | # BSD make does it like this. | 
 | echo '.include "confinc.mk" # ignored' > confmf.BSD | 
 | # Other make implementations (GNU, Solaris 10, AIX) do it like this. | 
 | echo 'include confinc.mk # ignored' > confmf.GNU | 
 | _am_result=no | 
 | for s in GNU BSD; do | 
 |   AM_RUN_LOG([${MAKE-make} -f confmf.$s && cat confinc.out]) | 
 |   AS_CASE([$?:`cat confinc.out 2>/dev/null`], | 
 |       ['0:this is the am__doit target'], | 
 |       [AS_CASE([$s], | 
 |           [BSD], [am__include='.include' am__quote='"'], | 
 |           [am__include='include' am__quote=''])]) | 
 |   if test "$am__include" != "#"; then | 
 |     _am_result="yes ($s style)" | 
 |     break | 
 |   fi | 
 | done | 
 | rm -f confinc.* confmf.* | 
 | AC_MSG_RESULT([${_am_result}]) | 
 | AC_SUBST([am__include])]) | 
 | AC_SUBST([am__quote])]) | 
 |  | 
 | # Fake the existence of programs that GNU maintainers use.  -*- Autoconf -*- | 
 |  | 
 | # Copyright (C) 1997-2021 Free Software Foundation, Inc. | 
 | # | 
 | # This file is free software; the Free Software Foundation | 
 | # gives unlimited permission to copy and/or distribute it, | 
 | # with or without modifications, as long as this notice is preserved. | 
 |  | 
 | # AM_MISSING_PROG(NAME, PROGRAM) | 
 | # ------------------------------ | 
 | AC_DEFUN([AM_MISSING_PROG], | 
 | [AC_REQUIRE([AM_MISSING_HAS_RUN]) | 
 | $1=${$1-"${am_missing_run}$2"} | 
 | AC_SUBST($1)]) | 
 |  | 
 | # AM_MISSING_HAS_RUN | 
 | # ------------------ | 
 | # Define MISSING if not defined so far and test if it is modern enough. | 
 | # If it is, set am_missing_run to use it, otherwise, to nothing. | 
 | AC_DEFUN([AM_MISSING_HAS_RUN], | 
 | [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl | 
 | AC_REQUIRE_AUX_FILE([missing])dnl | 
 | if test x"${MISSING+set}" != xset; then | 
 |   MISSING="\${SHELL} '$am_aux_dir/missing'" | 
 | fi | 
 | # Use eval to expand $SHELL | 
 | if eval "$MISSING --is-lightweight"; then | 
 |   am_missing_run="$MISSING " | 
 | else | 
 |   am_missing_run= | 
 |   AC_MSG_WARN(['missing' script is too old or missing]) | 
 | fi | 
 | ]) | 
 |  | 
 | # Helper functions for option handling.                     -*- Autoconf -*- | 
 |  | 
 | # Copyright (C) 2001-2021 Free Software Foundation, Inc. | 
 | # | 
 | # This file is free software; the Free Software Foundation | 
 | # gives unlimited permission to copy and/or distribute it, | 
 | # with or without modifications, as long as this notice is preserved. | 
 |  | 
 | # _AM_MANGLE_OPTION(NAME) | 
 | # ----------------------- | 
 | AC_DEFUN([_AM_MANGLE_OPTION], | 
 | [[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])]) | 
 |  | 
 | # _AM_SET_OPTION(NAME) | 
 | # -------------------- | 
 | # Set option NAME.  Presently that only means defining a flag for this option. | 
 | AC_DEFUN([_AM_SET_OPTION], | 
 | [m4_define(_AM_MANGLE_OPTION([$1]), [1])]) | 
 |  | 
 | # _AM_SET_OPTIONS(OPTIONS) | 
 | # ------------------------ | 
 | # OPTIONS is a space-separated list of Automake options. | 
 | AC_DEFUN([_AM_SET_OPTIONS], | 
 | [m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])]) | 
 |  | 
 | # _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET]) | 
 | # ------------------------------------------- | 
 | # Execute IF-SET if OPTION is set, IF-NOT-SET otherwise. | 
 | AC_DEFUN([_AM_IF_OPTION], | 
 | [m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])]) | 
 |  | 
 | # Copyright (C) 1999-2021 Free Software Foundation, Inc. | 
 | # | 
 | # This file is free software; the Free Software Foundation | 
 | # gives unlimited permission to copy and/or distribute it, | 
 | # with or without modifications, as long as this notice is preserved. | 
 |  | 
 | # _AM_PROG_CC_C_O | 
 | # --------------- | 
 | # Like AC_PROG_CC_C_O, but changed for automake.  We rewrite AC_PROG_CC | 
 | # to automatically call this. | 
 | AC_DEFUN([_AM_PROG_CC_C_O], | 
 | [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl | 
 | AC_REQUIRE_AUX_FILE([compile])dnl | 
 | AC_LANG_PUSH([C])dnl | 
 | AC_CACHE_CHECK( | 
 |   [whether $CC understands -c and -o together], | 
 |   [am_cv_prog_cc_c_o], | 
 |   [AC_LANG_CONFTEST([AC_LANG_PROGRAM([])]) | 
 |   # Make sure it works both with $CC and with simple cc. | 
 |   # Following AC_PROG_CC_C_O, we do the test twice because some | 
 |   # compilers refuse to overwrite an existing .o file with -o, | 
 |   # though they will create one. | 
 |   am_cv_prog_cc_c_o=yes | 
 |   for am_i in 1 2; do | 
 |     if AM_RUN_LOG([$CC -c conftest.$ac_ext -o conftest2.$ac_objext]) \ | 
 |          && test -f conftest2.$ac_objext; then | 
 |       : OK | 
 |     else | 
 |       am_cv_prog_cc_c_o=no | 
 |       break | 
 |     fi | 
 |   done | 
 |   rm -f core conftest* | 
 |   unset am_i]) | 
 | if test "$am_cv_prog_cc_c_o" != yes; then | 
 |    # Losing compiler, so override with the script. | 
 |    # FIXME: It is wrong to rewrite CC. | 
 |    # But if we don't then we get into trouble of one sort or another. | 
 |    # A longer-term fix would be to have automake use am__CC in this case, | 
 |    # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)" | 
 |    CC="$am_aux_dir/compile $CC" | 
 | fi | 
 | AC_LANG_POP([C])]) | 
 |  | 
 | # For backward compatibility. | 
 | AC_DEFUN_ONCE([AM_PROG_CC_C_O], [AC_REQUIRE([AC_PROG_CC])]) | 
 |  | 
 | # Copyright (C) 2001-2021 Free Software Foundation, Inc. | 
 | # | 
 | # This file is free software; the Free Software Foundation | 
 | # gives unlimited permission to copy and/or distribute it, | 
 | # with or without modifications, as long as this notice is preserved. | 
 |  | 
 | # AM_RUN_LOG(COMMAND) | 
 | # ------------------- | 
 | # Run COMMAND, save the exit status in ac_status, and log it. | 
 | # (This has been adapted from Autoconf's _AC_RUN_LOG macro.) | 
 | AC_DEFUN([AM_RUN_LOG], | 
 | [{ echo "$as_me:$LINENO: $1" >&AS_MESSAGE_LOG_FD | 
 |    ($1) >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD | 
 |    ac_status=$? | 
 |    echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD | 
 |    (exit $ac_status); }]) | 
 |  | 
 | # Check to make sure that the build environment is sane.    -*- Autoconf -*- | 
 |  | 
 | # Copyright (C) 1996-2021 Free Software Foundation, Inc. | 
 | # | 
 | # This file is free software; the Free Software Foundation | 
 | # gives unlimited permission to copy and/or distribute it, | 
 | # with or without modifications, as long as this notice is preserved. | 
 |  | 
 | # AM_SANITY_CHECK | 
 | # --------------- | 
 | AC_DEFUN([AM_SANITY_CHECK], | 
 | [AC_MSG_CHECKING([whether build environment is sane]) | 
 | # Reject unsafe characters in $srcdir or the absolute working directory | 
 | # name.  Accept space and tab only in the latter. | 
 | am_lf=' | 
 | ' | 
 | case `pwd` in | 
 |   *[[\\\"\#\$\&\'\`$am_lf]]*) | 
 |     AC_MSG_ERROR([unsafe absolute working directory name]);; | 
 | esac | 
 | case $srcdir in | 
 |   *[[\\\"\#\$\&\'\`$am_lf\ \	]]*) | 
 |     AC_MSG_ERROR([unsafe srcdir value: '$srcdir']);; | 
 | esac | 
 |  | 
 | # Do 'set' in a subshell so we don't clobber the current shell's | 
 | # arguments.  Must try -L first in case configure is actually a | 
 | # symlink; some systems play weird games with the mod time of symlinks | 
 | # (eg FreeBSD returns the mod time of the symlink's containing | 
 | # directory). | 
 | if ( | 
 |    am_has_slept=no | 
 |    for am_try in 1 2; do | 
 |      echo "timestamp, slept: $am_has_slept" > conftest.file | 
 |      set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null` | 
 |      if test "$[*]" = "X"; then | 
 | 	# -L didn't work. | 
 | 	set X `ls -t "$srcdir/configure" conftest.file` | 
 |      fi | 
 |      if test "$[*]" != "X $srcdir/configure conftest.file" \ | 
 | 	&& test "$[*]" != "X conftest.file $srcdir/configure"; then | 
 |  | 
 | 	# If neither matched, then we have a broken ls.  This can happen | 
 | 	# if, for instance, CONFIG_SHELL is bash and it inherits a | 
 | 	# broken ls alias from the environment.  This has actually | 
 | 	# happened.  Such a system could not be considered "sane". | 
 | 	AC_MSG_ERROR([ls -t appears to fail.  Make sure there is not a broken | 
 |   alias in your environment]) | 
 |      fi | 
 |      if test "$[2]" = conftest.file || test $am_try -eq 2; then | 
 |        break | 
 |      fi | 
 |      # Just in case. | 
 |      sleep 1 | 
 |      am_has_slept=yes | 
 |    done | 
 |    test "$[2]" = conftest.file | 
 |    ) | 
 | then | 
 |    # Ok. | 
 |    : | 
 | else | 
 |    AC_MSG_ERROR([newly created file is older than distributed files! | 
 | Check your system clock]) | 
 | fi | 
 | AC_MSG_RESULT([yes]) | 
 | # If we didn't sleep, we still need to ensure time stamps of config.status and | 
 | # generated files are strictly newer. | 
 | am_sleep_pid= | 
 | if grep 'slept: no' conftest.file >/dev/null 2>&1; then | 
 |   ( sleep 1 ) & | 
 |   am_sleep_pid=$! | 
 | fi | 
 | AC_CONFIG_COMMANDS_PRE( | 
 |   [AC_MSG_CHECKING([that generated files are newer than configure]) | 
 |    if test -n "$am_sleep_pid"; then | 
 |      # Hide warnings about reused PIDs. | 
 |      wait $am_sleep_pid 2>/dev/null | 
 |    fi | 
 |    AC_MSG_RESULT([done])]) | 
 | rm -f conftest.file | 
 | ]) | 
 |  | 
 | # Copyright (C) 2009-2021 Free Software Foundation, Inc. | 
 | # | 
 | # This file is free software; the Free Software Foundation | 
 | # gives unlimited permission to copy and/or distribute it, | 
 | # with or without modifications, as long as this notice is preserved. | 
 |  | 
 | # AM_SILENT_RULES([DEFAULT]) | 
 | # -------------------------- | 
 | # Enable less verbose build rules; with the default set to DEFAULT | 
 | # ("yes" being less verbose, "no" or empty being verbose). | 
 | AC_DEFUN([AM_SILENT_RULES], | 
 | [AC_ARG_ENABLE([silent-rules], [dnl | 
 | AS_HELP_STRING( | 
 |   [--enable-silent-rules], | 
 |   [less verbose build output (undo: "make V=1")]) | 
 | AS_HELP_STRING( | 
 |   [--disable-silent-rules], | 
 |   [verbose build output (undo: "make V=0")])dnl | 
 | ]) | 
 | case $enable_silent_rules in @%:@ ((( | 
 |   yes) AM_DEFAULT_VERBOSITY=0;; | 
 |    no) AM_DEFAULT_VERBOSITY=1;; | 
 |     *) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);; | 
 | esac | 
 | dnl | 
 | dnl A few 'make' implementations (e.g., NonStop OS and NextStep) | 
 | dnl do not support nested variable expansions. | 
 | dnl See automake bug#9928 and bug#10237. | 
 | am_make=${MAKE-make} | 
 | AC_CACHE_CHECK([whether $am_make supports nested variables], | 
 |    [am_cv_make_support_nested_variables], | 
 |    [if AS_ECHO([['TRUE=$(BAR$(V)) | 
 | BAR0=false | 
 | BAR1=true | 
 | V=1 | 
 | am__doit: | 
 | 	@$(TRUE) | 
 | .PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then | 
 |   am_cv_make_support_nested_variables=yes | 
 | else | 
 |   am_cv_make_support_nested_variables=no | 
 | fi]) | 
 | if test $am_cv_make_support_nested_variables = yes; then | 
 |   dnl Using '$V' instead of '$(V)' breaks IRIX make. | 
 |   AM_V='$(V)' | 
 |   AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)' | 
 | else | 
 |   AM_V=$AM_DEFAULT_VERBOSITY | 
 |   AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY | 
 | fi | 
 | AC_SUBST([AM_V])dnl | 
 | AM_SUBST_NOTMAKE([AM_V])dnl | 
 | AC_SUBST([AM_DEFAULT_V])dnl | 
 | AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl | 
 | AC_SUBST([AM_DEFAULT_VERBOSITY])dnl | 
 | AM_BACKSLASH='\' | 
 | AC_SUBST([AM_BACKSLASH])dnl | 
 | _AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl | 
 | ]) | 
 |  | 
 | # Copyright (C) 2001-2021 Free Software Foundation, Inc. | 
 | # | 
 | # This file is free software; the Free Software Foundation | 
 | # gives unlimited permission to copy and/or distribute it, | 
 | # with or without modifications, as long as this notice is preserved. | 
 |  | 
 | # AM_PROG_INSTALL_STRIP | 
 | # --------------------- | 
 | # One issue with vendor 'install' (even GNU) is that you can't | 
 | # specify the program used to strip binaries.  This is especially | 
 | # annoying in cross-compiling environments, where the build's strip | 
 | # is unlikely to handle the host's binaries. | 
 | # Fortunately install-sh will honor a STRIPPROG variable, so we | 
 | # always use install-sh in "make install-strip", and initialize | 
 | # STRIPPROG with the value of the STRIP variable (set by the user). | 
 | AC_DEFUN([AM_PROG_INSTALL_STRIP], | 
 | [AC_REQUIRE([AM_PROG_INSTALL_SH])dnl | 
 | # Installed binaries are usually stripped using 'strip' when the user | 
 | # run "make install-strip".  However 'strip' might not be the right | 
 | # tool to use in cross-compilation environments, therefore Automake | 
 | # will honor the 'STRIP' environment variable to overrule this program. | 
 | dnl Don't test for $cross_compiling = yes, because it might be 'maybe'. | 
 | if test "$cross_compiling" != no; then | 
 |   AC_CHECK_TOOL([STRIP], [strip], :) | 
 | fi | 
 | INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s" | 
 | AC_SUBST([INSTALL_STRIP_PROGRAM])]) | 
 |  | 
 | # Copyright (C) 2006-2021 Free Software Foundation, Inc. | 
 | # | 
 | # This file is free software; the Free Software Foundation | 
 | # gives unlimited permission to copy and/or distribute it, | 
 | # with or without modifications, as long as this notice is preserved. | 
 |  | 
 | # _AM_SUBST_NOTMAKE(VARIABLE) | 
 | # --------------------------- | 
 | # Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in. | 
 | # This macro is traced by Automake. | 
 | AC_DEFUN([_AM_SUBST_NOTMAKE]) | 
 |  | 
 | # AM_SUBST_NOTMAKE(VARIABLE) | 
 | # -------------------------- | 
 | # Public sister of _AM_SUBST_NOTMAKE. | 
 | AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)]) | 
 |  | 
 | # Check how to create a tarball.                            -*- Autoconf -*- | 
 |  | 
 | # Copyright (C) 2004-2021 Free Software Foundation, Inc. | 
 | # | 
 | # This file is free software; the Free Software Foundation | 
 | # gives unlimited permission to copy and/or distribute it, | 
 | # with or without modifications, as long as this notice is preserved. | 
 |  | 
 | # _AM_PROG_TAR(FORMAT) | 
 | # -------------------- | 
 | # Check how to create a tarball in format FORMAT. | 
 | # FORMAT should be one of 'v7', 'ustar', or 'pax'. | 
 | # | 
 | # Substitute a variable $(am__tar) that is a command | 
 | # writing to stdout a FORMAT-tarball containing the directory | 
 | # $tardir. | 
 | #     tardir=directory && $(am__tar) > result.tar | 
 | # | 
 | # Substitute a variable $(am__untar) that extract such | 
 | # a tarball read from stdin. | 
 | #     $(am__untar) < result.tar | 
 | # | 
 | AC_DEFUN([_AM_PROG_TAR], | 
 | [# Always define AMTAR for backward compatibility.  Yes, it's still used | 
 | # in the wild :-(  We should find a proper way to deprecate it ... | 
 | AC_SUBST([AMTAR], ['$${TAR-tar}']) | 
 |  | 
 | # We'll loop over all known methods to create a tar archive until one works. | 
 | _am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none' | 
 |  | 
 | m4_if([$1], [v7], | 
 |   [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'], | 
 |  | 
 |   [m4_case([$1], | 
 |     [ustar], | 
 |      [# The POSIX 1988 'ustar' format is defined with fixed-size fields. | 
 |       # There is notably a 21 bits limit for the UID and the GID.  In fact, | 
 |       # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343 | 
 |       # and bug#13588). | 
 |       am_max_uid=2097151 # 2^21 - 1 | 
 |       am_max_gid=$am_max_uid | 
 |       # The $UID and $GID variables are not portable, so we need to resort | 
 |       # to the POSIX-mandated id(1) utility.  Errors in the 'id' calls | 
 |       # below are definitely unexpected, so allow the users to see them | 
 |       # (that is, avoid stderr redirection). | 
 |       am_uid=`id -u || echo unknown` | 
 |       am_gid=`id -g || echo unknown` | 
 |       AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format]) | 
 |       if test $am_uid -le $am_max_uid; then | 
 |          AC_MSG_RESULT([yes]) | 
 |       else | 
 |          AC_MSG_RESULT([no]) | 
 |          _am_tools=none | 
 |       fi | 
 |       AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format]) | 
 |       if test $am_gid -le $am_max_gid; then | 
 |          AC_MSG_RESULT([yes]) | 
 |       else | 
 |         AC_MSG_RESULT([no]) | 
 |         _am_tools=none | 
 |       fi], | 
 |  | 
 |   [pax], | 
 |     [], | 
 |  | 
 |   [m4_fatal([Unknown tar format])]) | 
 |  | 
 |   AC_MSG_CHECKING([how to create a $1 tar archive]) | 
 |  | 
 |   # Go ahead even if we have the value already cached.  We do so because we | 
 |   # need to set the values for the 'am__tar' and 'am__untar' variables. | 
 |   _am_tools=${am_cv_prog_tar_$1-$_am_tools} | 
 |  | 
 |   for _am_tool in $_am_tools; do | 
 |     case $_am_tool in | 
 |     gnutar) | 
 |       for _am_tar in tar gnutar gtar; do | 
 |         AM_RUN_LOG([$_am_tar --version]) && break | 
 |       done | 
 |       am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"' | 
 |       am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"' | 
 |       am__untar="$_am_tar -xf -" | 
 |       ;; | 
 |     plaintar) | 
 |       # Must skip GNU tar: if it does not support --format= it doesn't create | 
 |       # ustar tarball either. | 
 |       (tar --version) >/dev/null 2>&1 && continue | 
 |       am__tar='tar chf - "$$tardir"' | 
 |       am__tar_='tar chf - "$tardir"' | 
 |       am__untar='tar xf -' | 
 |       ;; | 
 |     pax) | 
 |       am__tar='pax -L -x $1 -w "$$tardir"' | 
 |       am__tar_='pax -L -x $1 -w "$tardir"' | 
 |       am__untar='pax -r' | 
 |       ;; | 
 |     cpio) | 
 |       am__tar='find "$$tardir" -print | cpio -o -H $1 -L' | 
 |       am__tar_='find "$tardir" -print | cpio -o -H $1 -L' | 
 |       am__untar='cpio -i -H $1 -d' | 
 |       ;; | 
 |     none) | 
 |       am__tar=false | 
 |       am__tar_=false | 
 |       am__untar=false | 
 |       ;; | 
 |     esac | 
 |  | 
 |     # If the value was cached, stop now.  We just wanted to have am__tar | 
 |     # and am__untar set. | 
 |     test -n "${am_cv_prog_tar_$1}" && break | 
 |  | 
 |     # tar/untar a dummy directory, and stop if the command works. | 
 |     rm -rf conftest.dir | 
 |     mkdir conftest.dir | 
 |     echo GrepMe > conftest.dir/file | 
 |     AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar]) | 
 |     rm -rf conftest.dir | 
 |     if test -s conftest.tar; then | 
 |       AM_RUN_LOG([$am__untar <conftest.tar]) | 
 |       AM_RUN_LOG([cat conftest.dir/file]) | 
 |       grep GrepMe conftest.dir/file >/dev/null 2>&1 && break | 
 |     fi | 
 |   done | 
 |   rm -rf conftest.dir | 
 |  | 
 |   AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool]) | 
 |   AC_MSG_RESULT([$am_cv_prog_tar_$1])]) | 
 |  | 
 | AC_SUBST([am__tar]) | 
 | AC_SUBST([am__untar]) | 
 | ]) # _AM_PROG_TAR | 
 |  |