"Fossies" - the Fresh Open Source Software Archive

Member "protobuf-3.21.1/third_party/googletest/aclocal.m4" (27 May 2022, 27607 Bytes) of package /linux/misc/protobuf-all-3.21.1.tar.gz:


As a special service "Fossies" has tried to format the requested text file into HTML format (style: standard) with prefixed line numbers. Alternatively you can here view or download the uninterpreted source code file. See also the last Fossies "Diffs" side-by-side code changes report for "aclocal.m4": 3.19.1_vs_3.19.2.

    1 # generated automatically by aclocal 1.16.5 -*- Autoconf -*-
    2 
    3 # Copyright (C) 1996-2021 Free Software Foundation, Inc.
    4 
    5 # This file is free software; the Free Software Foundation
    6 # gives unlimited permission to copy and/or distribute it,
    7 # with or without modifications, as long as this notice is preserved.
    8 
    9 # This program is distributed in the hope that it will be useful,
   10 # but WITHOUT ANY WARRANTY, to the extent permitted by law; without
   11 # even the implied warranty of MERCHANTABILITY or FITNESS FOR A
   12 # PARTICULAR PURPOSE.
   13 
   14 m4_ifndef([AC_CONFIG_MACRO_DIRS], [m4_defun([_AM_CONFIG_MACRO_DIRS], [])m4_defun([AC_CONFIG_MACRO_DIRS], [_AM_CONFIG_MACRO_DIRS($@)])])
   15 m4_ifndef([AC_AUTOCONF_VERSION],
   16   [m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl
   17 m4_if(m4_defn([AC_AUTOCONF_VERSION]), [2.71],,
   18 [m4_warning([this file was generated for autoconf 2.71.
   19 You have another version of autoconf.  It may work, but is not guaranteed to.
   20 If you have problems, you may need to regenerate the build system entirely.
   21 To do so, use the procedure documented by the package, typically 'autoreconf'.])])
   22 
   23 # Copyright (C) 2002-2021 Free Software Foundation, Inc.
   24 #
   25 # This file is free software; the Free Software Foundation
   26 # gives unlimited permission to copy and/or distribute it,
   27 # with or without modifications, as long as this notice is preserved.
   28 
   29 # AM_AUTOMAKE_VERSION(VERSION)
   30 # ----------------------------
   31 # Automake X.Y traces this macro to ensure aclocal.m4 has been
   32 # generated from the m4 files accompanying Automake X.Y.
   33 # (This private macro should not be called outside this file.)
   34 AC_DEFUN([AM_AUTOMAKE_VERSION],
   35 [am__api_version='1.16'
   36 dnl Some users find AM_AUTOMAKE_VERSION and mistake it for a way to
   37 dnl require some minimum version.  Point them to the right macro.
   38 m4_if([$1], [1.16.5], [],
   39       [AC_FATAL([Do not call $0, use AM_INIT_AUTOMAKE([$1]).])])dnl
   40 ])
   41 
   42 # _AM_AUTOCONF_VERSION(VERSION)
   43 # -----------------------------
   44 # aclocal traces this macro to find the Autoconf version.
   45 # This is a private macro too.  Using m4_define simplifies
   46 # the logic in aclocal, which can simply ignore this definition.
   47 m4_define([_AM_AUTOCONF_VERSION], [])
   48 
   49 # AM_SET_CURRENT_AUTOMAKE_VERSION
   50 # -------------------------------
   51 # Call AM_AUTOMAKE_VERSION and AM_AUTOMAKE_VERSION so they can be traced.
   52 # This function is AC_REQUIREd by AM_INIT_AUTOMAKE.
   53 AC_DEFUN([AM_SET_CURRENT_AUTOMAKE_VERSION],
   54 [AM_AUTOMAKE_VERSION([1.16.5])dnl
   55 m4_ifndef([AC_AUTOCONF_VERSION],
   56   [m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl
   57 _AM_AUTOCONF_VERSION(m4_defn([AC_AUTOCONF_VERSION]))])
   58 
   59 # AM_AUX_DIR_EXPAND                                         -*- Autoconf -*-
   60 
   61 # Copyright (C) 2001-2021 Free Software Foundation, Inc.
   62 #
   63 # This file is free software; the Free Software Foundation
   64 # gives unlimited permission to copy and/or distribute it,
   65 # with or without modifications, as long as this notice is preserved.
   66 
   67 # For projects using AC_CONFIG_AUX_DIR([foo]), Autoconf sets
   68 # $ac_aux_dir to '$srcdir/foo'.  In other projects, it is set to
   69 # '$srcdir', '$srcdir/..', or '$srcdir/../..'.
   70 #
   71 # Of course, Automake must honor this variable whenever it calls a
   72 # tool from the auxiliary directory.  The problem is that $srcdir (and
   73 # therefore $ac_aux_dir as well) can be either absolute or relative,
   74 # depending on how configure is run.  This is pretty annoying, since
   75 # it makes $ac_aux_dir quite unusable in subdirectories: in the top
   76 # source directory, any form will work fine, but in subdirectories a
   77 # relative path needs to be adjusted first.
   78 #
   79 # $ac_aux_dir/missing
   80 #    fails when called from a subdirectory if $ac_aux_dir is relative
   81 # $top_srcdir/$ac_aux_dir/missing
   82 #    fails if $ac_aux_dir is absolute,
   83 #    fails when called from a subdirectory in a VPATH build with
   84 #          a relative $ac_aux_dir
   85 #
   86 # The reason of the latter failure is that $top_srcdir and $ac_aux_dir
   87 # are both prefixed by $srcdir.  In an in-source build this is usually
   88 # harmless because $srcdir is '.', but things will broke when you
   89 # start a VPATH build or use an absolute $srcdir.
   90 #
   91 # So we could use something similar to $top_srcdir/$ac_aux_dir/missing,
   92 # iff we strip the leading $srcdir from $ac_aux_dir.  That would be:
   93 #   am_aux_dir='\$(top_srcdir)/'`expr "$ac_aux_dir" : "$srcdir//*\(.*\)"`
   94 # and then we would define $MISSING as
   95 #   MISSING="\${SHELL} $am_aux_dir/missing"
   96 # This will work as long as MISSING is not called from configure, because
   97 # unfortunately $(top_srcdir) has no meaning in configure.
   98 # However there are other variables, like CC, which are often used in
   99 # configure, and could therefore not use this "fixed" $ac_aux_dir.
  100 #
  101 # Another solution, used here, is to always expand $ac_aux_dir to an
  102 # absolute PATH.  The drawback is that using absolute paths prevent a
  103 # configured tree to be moved without reconfiguration.
  104 
  105 AC_DEFUN([AM_AUX_DIR_EXPAND],
  106 [AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
  107 # Expand $ac_aux_dir to an absolute path.
  108 am_aux_dir=`cd "$ac_aux_dir" && pwd`
  109 ])
  110 
  111 # Do all the work for Automake.                             -*- Autoconf -*-
  112 
  113 # Copyright (C) 1996-2021 Free Software Foundation, Inc.
  114 #
  115 # This file is free software; the Free Software Foundation
  116 # gives unlimited permission to copy and/or distribute it,
  117 # with or without modifications, as long as this notice is preserved.
  118 
  119 # This macro actually does too much.  Some checks are only needed if
  120 # your package does certain things.  But this isn't really a big deal.
  121 
  122 dnl Redefine AC_PROG_CC to automatically invoke _AM_PROG_CC_C_O.
  123 m4_define([AC_PROG_CC],
  124 m4_defn([AC_PROG_CC])
  125 [_AM_PROG_CC_C_O
  126 ])
  127 
  128 # AM_INIT_AUTOMAKE(PACKAGE, VERSION, [NO-DEFINE])
  129 # AM_INIT_AUTOMAKE([OPTIONS])
  130 # -----------------------------------------------
  131 # The call with PACKAGE and VERSION arguments is the old style
  132 # call (pre autoconf-2.50), which is being phased out.  PACKAGE
  133 # and VERSION should now be passed to AC_INIT and removed from
  134 # the call to AM_INIT_AUTOMAKE.
  135 # We support both call styles for the transition.  After
  136 # the next Automake release, Autoconf can make the AC_INIT
  137 # arguments mandatory, and then we can depend on a new Autoconf
  138 # release and drop the old call support.
  139 AC_DEFUN([AM_INIT_AUTOMAKE],
  140 [AC_PREREQ([2.65])dnl
  141 m4_ifdef([_$0_ALREADY_INIT],
  142   [m4_fatal([$0 expanded multiple times
  143 ]m4_defn([_$0_ALREADY_INIT]))],
  144   [m4_define([_$0_ALREADY_INIT], m4_expansion_stack)])dnl
  145 dnl Autoconf wants to disallow AM_ names.  We explicitly allow
  146 dnl the ones we care about.
  147 m4_pattern_allow([^AM_[A-Z]+FLAGS$])dnl
  148 AC_REQUIRE([AM_SET_CURRENT_AUTOMAKE_VERSION])dnl
  149 AC_REQUIRE([AC_PROG_INSTALL])dnl
  150 if test "`cd $srcdir && pwd`" != "`pwd`"; then
  151   # Use -I$(srcdir) only when $(srcdir) != ., so that make's output
  152   # is not polluted with repeated "-I."
  153   AC_SUBST([am__isrc], [' -I$(srcdir)'])_AM_SUBST_NOTMAKE([am__isrc])dnl
  154   # test to see if srcdir already configured
  155   if test -f $srcdir/config.status; then
  156     AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
  157   fi
  158 fi
  159 
  160 # test whether we have cygpath
  161 if test -z "$CYGPATH_W"; then
  162   if (cygpath --version) >/dev/null 2>/dev/null; then
  163     CYGPATH_W='cygpath -w'
  164   else
  165     CYGPATH_W=echo
  166   fi
  167 fi
  168 AC_SUBST([CYGPATH_W])
  169 
  170 # Define the identity of the package.
  171 dnl Distinguish between old-style and new-style calls.
  172 m4_ifval([$2],
  173 [AC_DIAGNOSE([obsolete],
  174              [$0: two- and three-arguments forms are deprecated.])
  175 m4_ifval([$3], [_AM_SET_OPTION([no-define])])dnl
  176  AC_SUBST([PACKAGE], [$1])dnl
  177  AC_SUBST([VERSION], [$2])],
  178 [_AM_SET_OPTIONS([$1])dnl
  179 dnl Diagnose old-style AC_INIT with new-style AM_AUTOMAKE_INIT.
  180 m4_if(
  181   m4_ifset([AC_PACKAGE_NAME], [ok]):m4_ifset([AC_PACKAGE_VERSION], [ok]),
  182   [ok:ok],,
  183   [m4_fatal([AC_INIT should be called with package and version arguments])])dnl
  184  AC_SUBST([PACKAGE], ['AC_PACKAGE_TARNAME'])dnl
  185  AC_SUBST([VERSION], ['AC_PACKAGE_VERSION'])])dnl
  186 
  187 _AM_IF_OPTION([no-define],,
  188 [AC_DEFINE_UNQUOTED([PACKAGE], ["$PACKAGE"], [Name of package])
  189  AC_DEFINE_UNQUOTED([VERSION], ["$VERSION"], [Version number of package])])dnl
  190 
  191 # Some tools Automake needs.
  192 AC_REQUIRE([AM_SANITY_CHECK])dnl
  193 AC_REQUIRE([AC_ARG_PROGRAM])dnl
  194 AM_MISSING_PROG([ACLOCAL], [aclocal-${am__api_version}])
  195 AM_MISSING_PROG([AUTOCONF], [autoconf])
  196 AM_MISSING_PROG([AUTOMAKE], [automake-${am__api_version}])
  197 AM_MISSING_PROG([AUTOHEADER], [autoheader])
  198 AM_MISSING_PROG([MAKEINFO], [makeinfo])
  199 AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
  200 AC_REQUIRE([AM_PROG_INSTALL_STRIP])dnl
  201 AC_REQUIRE([AC_PROG_MKDIR_P])dnl
  202 # For better backward compatibility.  To be removed once Automake 1.9.x
  203 # dies out for good.  For more background, see:
  204 # <https://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
  205 # <https://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
  206 AC_SUBST([mkdir_p], ['$(MKDIR_P)'])
  207 # We need awk for the "check" target (and possibly the TAP driver).  The
  208 # system "awk" is bad on some platforms.
  209 AC_REQUIRE([AC_PROG_AWK])dnl
  210 AC_REQUIRE([AC_PROG_MAKE_SET])dnl
  211 AC_REQUIRE([AM_SET_LEADING_DOT])dnl
  212 _AM_IF_OPTION([tar-ustar], [_AM_PROG_TAR([ustar])],
  213 	      [_AM_IF_OPTION([tar-pax], [_AM_PROG_TAR([pax])],
  214 			     [_AM_PROG_TAR([v7])])])
  215 _AM_IF_OPTION([no-dependencies],,
  216 [AC_PROVIDE_IFELSE([AC_PROG_CC],
  217 		  [_AM_DEPENDENCIES([CC])],
  218 		  [m4_define([AC_PROG_CC],
  219 			     m4_defn([AC_PROG_CC])[_AM_DEPENDENCIES([CC])])])dnl
  220 AC_PROVIDE_IFELSE([AC_PROG_CXX],
  221 		  [_AM_DEPENDENCIES([CXX])],
  222 		  [m4_define([AC_PROG_CXX],
  223 			     m4_defn([AC_PROG_CXX])[_AM_DEPENDENCIES([CXX])])])dnl
  224 AC_PROVIDE_IFELSE([AC_PROG_OBJC],
  225 		  [_AM_DEPENDENCIES([OBJC])],
  226 		  [m4_define([AC_PROG_OBJC],
  227 			     m4_defn([AC_PROG_OBJC])[_AM_DEPENDENCIES([OBJC])])])dnl
  228 AC_PROVIDE_IFELSE([AC_PROG_OBJCXX],
  229 		  [_AM_DEPENDENCIES([OBJCXX])],
  230 		  [m4_define([AC_PROG_OBJCXX],
  231 			     m4_defn([AC_PROG_OBJCXX])[_AM_DEPENDENCIES([OBJCXX])])])dnl
  232 ])
  233 # Variables for tags utilities; see am/tags.am
  234 if test -z "$CTAGS"; then
  235   CTAGS=ctags
  236 fi
  237 AC_SUBST([CTAGS])
  238 if test -z "$ETAGS"; then
  239   ETAGS=etags
  240 fi
  241 AC_SUBST([ETAGS])
  242 if test -z "$CSCOPE"; then
  243   CSCOPE=cscope
  244 fi
  245 AC_SUBST([CSCOPE])
  246 
  247 AC_REQUIRE([AM_SILENT_RULES])dnl
  248 dnl The testsuite driver may need to know about EXEEXT, so add the
  249 dnl 'am__EXEEXT' conditional if _AM_COMPILER_EXEEXT was seen.  This
  250 dnl macro is hooked onto _AC_COMPILER_EXEEXT early, see below.
  251 AC_CONFIG_COMMANDS_PRE(dnl
  252 [m4_provide_if([_AM_COMPILER_EXEEXT],
  253   [AM_CONDITIONAL([am__EXEEXT], [test -n "$EXEEXT"])])])dnl
  254 
  255 # POSIX will say in a future version that running "rm -f" with no argument
  256 # is OK; and we want to be able to make that assumption in our Makefile
  257 # recipes.  So use an aggressive probe to check that the usage we want is
  258 # actually supported "in the wild" to an acceptable degree.
  259 # See automake bug#10828.
  260 # To make any issue more visible, cause the running configure to be aborted
  261 # by default if the 'rm' program in use doesn't match our expectations; the
  262 # user can still override this though.
  263 if rm -f && rm -fr && rm -rf; then : OK; else
  264   cat >&2 <<'END'
  265 Oops!
  266 
  267 Your 'rm' program seems unable to run without file operands specified
  268 on the command line, even when the '-f' option is present.  This is contrary
  269 to the behaviour of most rm programs out there, and not conforming with
  270 the upcoming POSIX standard: <http://austingroupbugs.net/view.php?id=542>
  271 
  272 Please tell bug-automake@gnu.org about your system, including the value
  273 of your $PATH and any error possibly output before this message.  This
  274 can help us improve future automake versions.
  275 
  276 END
  277   if test x"$ACCEPT_INFERIOR_RM_PROGRAM" = x"yes"; then
  278     echo 'Configuration will proceed anyway, since you have set the' >&2
  279     echo 'ACCEPT_INFERIOR_RM_PROGRAM variable to "yes"' >&2
  280     echo >&2
  281   else
  282     cat >&2 <<'END'
  283 Aborting the configuration process, to ensure you take notice of the issue.
  284 
  285 You can download and install GNU coreutils to get an 'rm' implementation
  286 that behaves properly: <https://www.gnu.org/software/coreutils/>.
  287 
  288 If you want to complete the configuration process using your problematic
  289 'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM
  290 to "yes", and re-run configure.
  291 
  292 END
  293     AC_MSG_ERROR([Your 'rm' program is bad, sorry.])
  294   fi
  295 fi
  296 dnl The trailing newline in this macro's definition is deliberate, for
  297 dnl backward compatibility and to allow trailing 'dnl'-style comments
  298 dnl after the AM_INIT_AUTOMAKE invocation. See automake bug#16841.
  299 ])
  300 
  301 dnl Hook into '_AC_COMPILER_EXEEXT' early to learn its expansion.  Do not
  302 dnl add the conditional right here, as _AC_COMPILER_EXEEXT may be further
  303 dnl mangled by Autoconf and run in a shell conditional statement.
  304 m4_define([_AC_COMPILER_EXEEXT],
  305 m4_defn([_AC_COMPILER_EXEEXT])[m4_provide([_AM_COMPILER_EXEEXT])])
  306 
  307 # When config.status generates a header, we must update the stamp-h file.
  308 # This file resides in the same directory as the config header
  309 # that is generated.  The stamp files are numbered to have different names.
  310 
  311 # Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the
  312 # loop where config.status creates the headers, so we can generate
  313 # our stamp files there.
  314 AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK],
  315 [# Compute $1's index in $config_headers.
  316 _am_arg=$1
  317 _am_stamp_count=1
  318 for _am_header in $config_headers :; do
  319   case $_am_header in
  320     $_am_arg | $_am_arg:* )
  321       break ;;
  322     * )
  323       _am_stamp_count=`expr $_am_stamp_count + 1` ;;
  324   esac
  325 done
  326 echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
  327 
  328 # Copyright (C) 2001-2021 Free Software Foundation, Inc.
  329 #
  330 # This file is free software; the Free Software Foundation
  331 # gives unlimited permission to copy and/or distribute it,
  332 # with or without modifications, as long as this notice is preserved.
  333 
  334 # AM_PROG_INSTALL_SH
  335 # ------------------
  336 # Define $install_sh.
  337 AC_DEFUN([AM_PROG_INSTALL_SH],
  338 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
  339 if test x"${install_sh+set}" != xset; then
  340   case $am_aux_dir in
  341   *\ * | *\	*)
  342     install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
  343   *)
  344     install_sh="\${SHELL} $am_aux_dir/install-sh"
  345   esac
  346 fi
  347 AC_SUBST([install_sh])])
  348 
  349 # Copyright (C) 2003-2021 Free Software Foundation, Inc.
  350 #
  351 # This file is free software; the Free Software Foundation
  352 # gives unlimited permission to copy and/or distribute it,
  353 # with or without modifications, as long as this notice is preserved.
  354 
  355 # Check whether the underlying file-system supports filenames
  356 # with a leading dot.  For instance MS-DOS doesn't.
  357 AC_DEFUN([AM_SET_LEADING_DOT],
  358 [rm -rf .tst 2>/dev/null
  359 mkdir .tst 2>/dev/null
  360 if test -d .tst; then
  361   am__leading_dot=.
  362 else
  363   am__leading_dot=_
  364 fi
  365 rmdir .tst 2>/dev/null
  366 AC_SUBST([am__leading_dot])])
  367 
  368 # Fake the existence of programs that GNU maintainers use.  -*- Autoconf -*-
  369 
  370 # Copyright (C) 1997-2021 Free Software Foundation, Inc.
  371 #
  372 # This file is free software; the Free Software Foundation
  373 # gives unlimited permission to copy and/or distribute it,
  374 # with or without modifications, as long as this notice is preserved.
  375 
  376 # AM_MISSING_PROG(NAME, PROGRAM)
  377 # ------------------------------
  378 AC_DEFUN([AM_MISSING_PROG],
  379 [AC_REQUIRE([AM_MISSING_HAS_RUN])
  380 $1=${$1-"${am_missing_run}$2"}
  381 AC_SUBST($1)])
  382 
  383 # AM_MISSING_HAS_RUN
  384 # ------------------
  385 # Define MISSING if not defined so far and test if it is modern enough.
  386 # If it is, set am_missing_run to use it, otherwise, to nothing.
  387 AC_DEFUN([AM_MISSING_HAS_RUN],
  388 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
  389 AC_REQUIRE_AUX_FILE([missing])dnl
  390 if test x"${MISSING+set}" != xset; then
  391   MISSING="\${SHELL} '$am_aux_dir/missing'"
  392 fi
  393 # Use eval to expand $SHELL
  394 if eval "$MISSING --is-lightweight"; then
  395   am_missing_run="$MISSING "
  396 else
  397   am_missing_run=
  398   AC_MSG_WARN(['missing' script is too old or missing])
  399 fi
  400 ])
  401 
  402 # Helper functions for option handling.                     -*- Autoconf -*-
  403 
  404 # Copyright (C) 2001-2021 Free Software Foundation, Inc.
  405 #
  406 # This file is free software; the Free Software Foundation
  407 # gives unlimited permission to copy and/or distribute it,
  408 # with or without modifications, as long as this notice is preserved.
  409 
  410 # _AM_MANGLE_OPTION(NAME)
  411 # -----------------------
  412 AC_DEFUN([_AM_MANGLE_OPTION],
  413 [[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
  414 
  415 # _AM_SET_OPTION(NAME)
  416 # --------------------
  417 # Set option NAME.  Presently that only means defining a flag for this option.
  418 AC_DEFUN([_AM_SET_OPTION],
  419 [m4_define(_AM_MANGLE_OPTION([$1]), [1])])
  420 
  421 # _AM_SET_OPTIONS(OPTIONS)
  422 # ------------------------
  423 # OPTIONS is a space-separated list of Automake options.
  424 AC_DEFUN([_AM_SET_OPTIONS],
  425 [m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
  426 
  427 # _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
  428 # -------------------------------------------
  429 # Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
  430 AC_DEFUN([_AM_IF_OPTION],
  431 [m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
  432 
  433 # Check to make sure that the build environment is sane.    -*- Autoconf -*-
  434 
  435 # Copyright (C) 1996-2021 Free Software Foundation, Inc.
  436 #
  437 # This file is free software; the Free Software Foundation
  438 # gives unlimited permission to copy and/or distribute it,
  439 # with or without modifications, as long as this notice is preserved.
  440 
  441 # AM_SANITY_CHECK
  442 # ---------------
  443 AC_DEFUN([AM_SANITY_CHECK],
  444 [AC_MSG_CHECKING([whether build environment is sane])
  445 # Reject unsafe characters in $srcdir or the absolute working directory
  446 # name.  Accept space and tab only in the latter.
  447 am_lf='
  448 '
  449 case `pwd` in
  450   *[[\\\"\#\$\&\'\`$am_lf]]*)
  451     AC_MSG_ERROR([unsafe absolute working directory name]);;
  452 esac
  453 case $srcdir in
  454   *[[\\\"\#\$\&\'\`$am_lf\ \	]]*)
  455     AC_MSG_ERROR([unsafe srcdir value: '$srcdir']);;
  456 esac
  457 
  458 # Do 'set' in a subshell so we don't clobber the current shell's
  459 # arguments.  Must try -L first in case configure is actually a
  460 # symlink; some systems play weird games with the mod time of symlinks
  461 # (eg FreeBSD returns the mod time of the symlink's containing
  462 # directory).
  463 if (
  464    am_has_slept=no
  465    for am_try in 1 2; do
  466      echo "timestamp, slept: $am_has_slept" > conftest.file
  467      set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
  468      if test "$[*]" = "X"; then
  469 	# -L didn't work.
  470 	set X `ls -t "$srcdir/configure" conftest.file`
  471      fi
  472      if test "$[*]" != "X $srcdir/configure conftest.file" \
  473 	&& test "$[*]" != "X conftest.file $srcdir/configure"; then
  474 
  475 	# If neither matched, then we have a broken ls.  This can happen
  476 	# if, for instance, CONFIG_SHELL is bash and it inherits a
  477 	# broken ls alias from the environment.  This has actually
  478 	# happened.  Such a system could not be considered "sane".
  479 	AC_MSG_ERROR([ls -t appears to fail.  Make sure there is not a broken
  480   alias in your environment])
  481      fi
  482      if test "$[2]" = conftest.file || test $am_try -eq 2; then
  483        break
  484      fi
  485      # Just in case.
  486      sleep 1
  487      am_has_slept=yes
  488    done
  489    test "$[2]" = conftest.file
  490    )
  491 then
  492    # Ok.
  493    :
  494 else
  495    AC_MSG_ERROR([newly created file is older than distributed files!
  496 Check your system clock])
  497 fi
  498 AC_MSG_RESULT([yes])
  499 # If we didn't sleep, we still need to ensure time stamps of config.status and
  500 # generated files are strictly newer.
  501 am_sleep_pid=
  502 if grep 'slept: no' conftest.file >/dev/null 2>&1; then
  503   ( sleep 1 ) &
  504   am_sleep_pid=$!
  505 fi
  506 AC_CONFIG_COMMANDS_PRE(
  507   [AC_MSG_CHECKING([that generated files are newer than configure])
  508    if test -n "$am_sleep_pid"; then
  509      # Hide warnings about reused PIDs.
  510      wait $am_sleep_pid 2>/dev/null
  511    fi
  512    AC_MSG_RESULT([done])])
  513 rm -f conftest.file
  514 ])
  515 
  516 # Copyright (C) 2009-2021 Free Software Foundation, Inc.
  517 #
  518 # This file is free software; the Free Software Foundation
  519 # gives unlimited permission to copy and/or distribute it,
  520 # with or without modifications, as long as this notice is preserved.
  521 
  522 # AM_SILENT_RULES([DEFAULT])
  523 # --------------------------
  524 # Enable less verbose build rules; with the default set to DEFAULT
  525 # ("yes" being less verbose, "no" or empty being verbose).
  526 AC_DEFUN([AM_SILENT_RULES],
  527 [AC_ARG_ENABLE([silent-rules], [dnl
  528 AS_HELP_STRING(
  529   [--enable-silent-rules],
  530   [less verbose build output (undo: "make V=1")])
  531 AS_HELP_STRING(
  532   [--disable-silent-rules],
  533   [verbose build output (undo: "make V=0")])dnl
  534 ])
  535 case $enable_silent_rules in @%:@ (((
  536   yes) AM_DEFAULT_VERBOSITY=0;;
  537    no) AM_DEFAULT_VERBOSITY=1;;
  538     *) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);;
  539 esac
  540 dnl
  541 dnl A few 'make' implementations (e.g., NonStop OS and NextStep)
  542 dnl do not support nested variable expansions.
  543 dnl See automake bug#9928 and bug#10237.
  544 am_make=${MAKE-make}
  545 AC_CACHE_CHECK([whether $am_make supports nested variables],
  546    [am_cv_make_support_nested_variables],
  547    [if AS_ECHO([['TRUE=$(BAR$(V))
  548 BAR0=false
  549 BAR1=true
  550 V=1
  551 am__doit:
  552 	@$(TRUE)
  553 .PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then
  554   am_cv_make_support_nested_variables=yes
  555 else
  556   am_cv_make_support_nested_variables=no
  557 fi])
  558 if test $am_cv_make_support_nested_variables = yes; then
  559   dnl Using '$V' instead of '$(V)' breaks IRIX make.
  560   AM_V='$(V)'
  561   AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
  562 else
  563   AM_V=$AM_DEFAULT_VERBOSITY
  564   AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
  565 fi
  566 AC_SUBST([AM_V])dnl
  567 AM_SUBST_NOTMAKE([AM_V])dnl
  568 AC_SUBST([AM_DEFAULT_V])dnl
  569 AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl
  570 AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
  571 AM_BACKSLASH='\'
  572 AC_SUBST([AM_BACKSLASH])dnl
  573 _AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
  574 ])
  575 
  576 # Copyright (C) 2001-2021 Free Software Foundation, Inc.
  577 #
  578 # This file is free software; the Free Software Foundation
  579 # gives unlimited permission to copy and/or distribute it,
  580 # with or without modifications, as long as this notice is preserved.
  581 
  582 # AM_PROG_INSTALL_STRIP
  583 # ---------------------
  584 # One issue with vendor 'install' (even GNU) is that you can't
  585 # specify the program used to strip binaries.  This is especially
  586 # annoying in cross-compiling environments, where the build's strip
  587 # is unlikely to handle the host's binaries.
  588 # Fortunately install-sh will honor a STRIPPROG variable, so we
  589 # always use install-sh in "make install-strip", and initialize
  590 # STRIPPROG with the value of the STRIP variable (set by the user).
  591 AC_DEFUN([AM_PROG_INSTALL_STRIP],
  592 [AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
  593 # Installed binaries are usually stripped using 'strip' when the user
  594 # run "make install-strip".  However 'strip' might not be the right
  595 # tool to use in cross-compilation environments, therefore Automake
  596 # will honor the 'STRIP' environment variable to overrule this program.
  597 dnl Don't test for $cross_compiling = yes, because it might be 'maybe'.
  598 if test "$cross_compiling" != no; then
  599   AC_CHECK_TOOL([STRIP], [strip], :)
  600 fi
  601 INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
  602 AC_SUBST([INSTALL_STRIP_PROGRAM])])
  603 
  604 # Copyright (C) 2006-2021 Free Software Foundation, Inc.
  605 #
  606 # This file is free software; the Free Software Foundation
  607 # gives unlimited permission to copy and/or distribute it,
  608 # with or without modifications, as long as this notice is preserved.
  609 
  610 # _AM_SUBST_NOTMAKE(VARIABLE)
  611 # ---------------------------
  612 # Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
  613 # This macro is traced by Automake.
  614 AC_DEFUN([_AM_SUBST_NOTMAKE])
  615 
  616 # AM_SUBST_NOTMAKE(VARIABLE)
  617 # --------------------------
  618 # Public sister of _AM_SUBST_NOTMAKE.
  619 AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
  620 
  621 # Check how to create a tarball.                            -*- Autoconf -*-
  622 
  623 # Copyright (C) 2004-2021 Free Software Foundation, Inc.
  624 #
  625 # This file is free software; the Free Software Foundation
  626 # gives unlimited permission to copy and/or distribute it,
  627 # with or without modifications, as long as this notice is preserved.
  628 
  629 # _AM_PROG_TAR(FORMAT)
  630 # --------------------
  631 # Check how to create a tarball in format FORMAT.
  632 # FORMAT should be one of 'v7', 'ustar', or 'pax'.
  633 #
  634 # Substitute a variable $(am__tar) that is a command
  635 # writing to stdout a FORMAT-tarball containing the directory
  636 # $tardir.
  637 #     tardir=directory && $(am__tar) > result.tar
  638 #
  639 # Substitute a variable $(am__untar) that extract such
  640 # a tarball read from stdin.
  641 #     $(am__untar) < result.tar
  642 #
  643 AC_DEFUN([_AM_PROG_TAR],
  644 [# Always define AMTAR for backward compatibility.  Yes, it's still used
  645 # in the wild :-(  We should find a proper way to deprecate it ...
  646 AC_SUBST([AMTAR], ['$${TAR-tar}'])
  647 
  648 # We'll loop over all known methods to create a tar archive until one works.
  649 _am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
  650 
  651 m4_if([$1], [v7],
  652   [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],
  653 
  654   [m4_case([$1],
  655     [ustar],
  656      [# The POSIX 1988 'ustar' format is defined with fixed-size fields.
  657       # There is notably a 21 bits limit for the UID and the GID.  In fact,
  658       # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343
  659       # and bug#13588).
  660       am_max_uid=2097151 # 2^21 - 1
  661       am_max_gid=$am_max_uid
  662       # The $UID and $GID variables are not portable, so we need to resort
  663       # to the POSIX-mandated id(1) utility.  Errors in the 'id' calls
  664       # below are definitely unexpected, so allow the users to see them
  665       # (that is, avoid stderr redirection).
  666       am_uid=`id -u || echo unknown`
  667       am_gid=`id -g || echo unknown`
  668       AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format])
  669       if test $am_uid -le $am_max_uid; then
  670          AC_MSG_RESULT([yes])
  671       else
  672          AC_MSG_RESULT([no])
  673          _am_tools=none
  674       fi
  675       AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format])
  676       if test $am_gid -le $am_max_gid; then
  677          AC_MSG_RESULT([yes])
  678       else
  679         AC_MSG_RESULT([no])
  680         _am_tools=none
  681       fi],
  682 
  683   [pax],
  684     [],
  685 
  686   [m4_fatal([Unknown tar format])])
  687 
  688   AC_MSG_CHECKING([how to create a $1 tar archive])
  689 
  690   # Go ahead even if we have the value already cached.  We do so because we
  691   # need to set the values for the 'am__tar' and 'am__untar' variables.
  692   _am_tools=${am_cv_prog_tar_$1-$_am_tools}
  693 
  694   for _am_tool in $_am_tools; do
  695     case $_am_tool in
  696     gnutar)
  697       for _am_tar in tar gnutar gtar; do
  698         AM_RUN_LOG([$_am_tar --version]) && break
  699       done
  700       am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
  701       am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
  702       am__untar="$_am_tar -xf -"
  703       ;;
  704     plaintar)
  705       # Must skip GNU tar: if it does not support --format= it doesn't create
  706       # ustar tarball either.
  707       (tar --version) >/dev/null 2>&1 && continue
  708       am__tar='tar chf - "$$tardir"'
  709       am__tar_='tar chf - "$tardir"'
  710       am__untar='tar xf -'
  711       ;;
  712     pax)
  713       am__tar='pax -L -x $1 -w "$$tardir"'
  714       am__tar_='pax -L -x $1 -w "$tardir"'
  715       am__untar='pax -r'
  716       ;;
  717     cpio)
  718       am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
  719       am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
  720       am__untar='cpio -i -H $1 -d'
  721       ;;
  722     none)
  723       am__tar=false
  724       am__tar_=false
  725       am__untar=false
  726       ;;
  727     esac
  728 
  729     # If the value was cached, stop now.  We just wanted to have am__tar
  730     # and am__untar set.
  731     test -n "${am_cv_prog_tar_$1}" && break
  732 
  733     # tar/untar a dummy directory, and stop if the command works.
  734     rm -rf conftest.dir
  735     mkdir conftest.dir
  736     echo GrepMe > conftest.dir/file
  737     AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
  738     rm -rf conftest.dir
  739     if test -s conftest.tar; then
  740       AM_RUN_LOG([$am__untar <conftest.tar])
  741       AM_RUN_LOG([cat conftest.dir/file])
  742       grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
  743     fi
  744   done
  745   rm -rf conftest.dir
  746 
  747   AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
  748   AC_MSG_RESULT([$am_cv_prog_tar_$1])])
  749 
  750 AC_SUBST([am__tar])
  751 AC_SUBST([am__untar])
  752 ]) # _AM_PROG_TAR
  753