"Fossies" - the Fresh Open Source Software Archive

Member "protobuf-3.21.1/aclocal.m4" (27 May 2022, 46371 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 # Copyright (C) 2011-2021 Free Software Foundation, Inc.
   60 #
   61 # This file is free software; the Free Software Foundation
   62 # gives unlimited permission to copy and/or distribute it,
   63 # with or without modifications, as long as this notice is preserved.
   64 
   65 # AM_PROG_AR([ACT-IF-FAIL])
   66 # -------------------------
   67 # Try to determine the archiver interface, and trigger the ar-lib wrapper
   68 # if it is needed.  If the detection of archiver interface fails, run
   69 # ACT-IF-FAIL (default is to abort configure with a proper error message).
   70 AC_DEFUN([AM_PROG_AR],
   71 [AC_BEFORE([$0], [LT_INIT])dnl
   72 AC_BEFORE([$0], [AC_PROG_LIBTOOL])dnl
   73 AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
   74 AC_REQUIRE_AUX_FILE([ar-lib])dnl
   75 AC_CHECK_TOOLS([AR], [ar lib "link -lib"], [false])
   76 : ${AR=ar}
   77 
   78 AC_CACHE_CHECK([the archiver ($AR) interface], [am_cv_ar_interface],
   79   [AC_LANG_PUSH([C])
   80    am_cv_ar_interface=ar
   81    AC_COMPILE_IFELSE([AC_LANG_SOURCE([[int some_variable = 0;]])],
   82      [am_ar_try='$AR cru libconftest.a conftest.$ac_objext >&AS_MESSAGE_LOG_FD'
   83       AC_TRY_EVAL([am_ar_try])
   84       if test "$ac_status" -eq 0; then
   85         am_cv_ar_interface=ar
   86       else
   87         am_ar_try='$AR -NOLOGO -OUT:conftest.lib conftest.$ac_objext >&AS_MESSAGE_LOG_FD'
   88         AC_TRY_EVAL([am_ar_try])
   89         if test "$ac_status" -eq 0; then
   90           am_cv_ar_interface=lib
   91         else
   92           am_cv_ar_interface=unknown
   93         fi
   94       fi
   95       rm -f conftest.lib libconftest.a
   96      ])
   97    AC_LANG_POP([C])])
   98 
   99 case $am_cv_ar_interface in
  100 ar)
  101   ;;
  102 lib)
  103   # Microsoft lib, so override with the ar-lib wrapper script.
  104   # FIXME: It is wrong to rewrite AR.
  105   # But if we don't then we get into trouble of one sort or another.
  106   # A longer-term fix would be to have automake use am__AR in this case,
  107   # and then we could set am__AR="$am_aux_dir/ar-lib \$(AR)" or something
  108   # similar.
  109   AR="$am_aux_dir/ar-lib $AR"
  110   ;;
  111 unknown)
  112   m4_default([$1],
  113              [AC_MSG_ERROR([could not determine $AR interface])])
  114   ;;
  115 esac
  116 AC_SUBST([AR])dnl
  117 ])
  118 
  119 # AM_AUX_DIR_EXPAND                                         -*- Autoconf -*-
  120 
  121 # Copyright (C) 2001-2021 Free Software Foundation, Inc.
  122 #
  123 # This file is free software; the Free Software Foundation
  124 # gives unlimited permission to copy and/or distribute it,
  125 # with or without modifications, as long as this notice is preserved.
  126 
  127 # For projects using AC_CONFIG_AUX_DIR([foo]), Autoconf sets
  128 # $ac_aux_dir to '$srcdir/foo'.  In other projects, it is set to
  129 # '$srcdir', '$srcdir/..', or '$srcdir/../..'.
  130 #
  131 # Of course, Automake must honor this variable whenever it calls a
  132 # tool from the auxiliary directory.  The problem is that $srcdir (and
  133 # therefore $ac_aux_dir as well) can be either absolute or relative,
  134 # depending on how configure is run.  This is pretty annoying, since
  135 # it makes $ac_aux_dir quite unusable in subdirectories: in the top
  136 # source directory, any form will work fine, but in subdirectories a
  137 # relative path needs to be adjusted first.
  138 #
  139 # $ac_aux_dir/missing
  140 #    fails when called from a subdirectory if $ac_aux_dir is relative
  141 # $top_srcdir/$ac_aux_dir/missing
  142 #    fails if $ac_aux_dir is absolute,
  143 #    fails when called from a subdirectory in a VPATH build with
  144 #          a relative $ac_aux_dir
  145 #
  146 # The reason of the latter failure is that $top_srcdir and $ac_aux_dir
  147 # are both prefixed by $srcdir.  In an in-source build this is usually
  148 # harmless because $srcdir is '.', but things will broke when you
  149 # start a VPATH build or use an absolute $srcdir.
  150 #
  151 # So we could use something similar to $top_srcdir/$ac_aux_dir/missing,
  152 # iff we strip the leading $srcdir from $ac_aux_dir.  That would be:
  153 #   am_aux_dir='\$(top_srcdir)/'`expr "$ac_aux_dir" : "$srcdir//*\(.*\)"`
  154 # and then we would define $MISSING as
  155 #   MISSING="\${SHELL} $am_aux_dir/missing"
  156 # This will work as long as MISSING is not called from configure, because
  157 # unfortunately $(top_srcdir) has no meaning in configure.
  158 # However there are other variables, like CC, which are often used in
  159 # configure, and could therefore not use this "fixed" $ac_aux_dir.
  160 #
  161 # Another solution, used here, is to always expand $ac_aux_dir to an
  162 # absolute PATH.  The drawback is that using absolute paths prevent a
  163 # configured tree to be moved without reconfiguration.
  164 
  165 AC_DEFUN([AM_AUX_DIR_EXPAND],
  166 [AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
  167 # Expand $ac_aux_dir to an absolute path.
  168 am_aux_dir=`cd "$ac_aux_dir" && pwd`
  169 ])
  170 
  171 # AM_CONDITIONAL                                            -*- Autoconf -*-
  172 
  173 # Copyright (C) 1997-2021 Free Software Foundation, Inc.
  174 #
  175 # This file is free software; the Free Software Foundation
  176 # gives unlimited permission to copy and/or distribute it,
  177 # with or without modifications, as long as this notice is preserved.
  178 
  179 # AM_CONDITIONAL(NAME, SHELL-CONDITION)
  180 # -------------------------------------
  181 # Define a conditional.
  182 AC_DEFUN([AM_CONDITIONAL],
  183 [AC_PREREQ([2.52])dnl
  184  m4_if([$1], [TRUE],  [AC_FATAL([$0: invalid condition: $1])],
  185        [$1], [FALSE], [AC_FATAL([$0: invalid condition: $1])])dnl
  186 AC_SUBST([$1_TRUE])dnl
  187 AC_SUBST([$1_FALSE])dnl
  188 _AM_SUBST_NOTMAKE([$1_TRUE])dnl
  189 _AM_SUBST_NOTMAKE([$1_FALSE])dnl
  190 m4_define([_AM_COND_VALUE_$1], [$2])dnl
  191 if $2; then
  192   $1_TRUE=
  193   $1_FALSE='#'
  194 else
  195   $1_TRUE='#'
  196   $1_FALSE=
  197 fi
  198 AC_CONFIG_COMMANDS_PRE(
  199 [if test -z "${$1_TRUE}" && test -z "${$1_FALSE}"; then
  200   AC_MSG_ERROR([[conditional "$1" was never defined.
  201 Usually this means the macro was only invoked conditionally.]])
  202 fi])])
  203 
  204 # Copyright (C) 1999-2021 Free Software Foundation, Inc.
  205 #
  206 # This file is free software; the Free Software Foundation
  207 # gives unlimited permission to copy and/or distribute it,
  208 # with or without modifications, as long as this notice is preserved.
  209 
  210 
  211 # There are a few dirty hacks below to avoid letting 'AC_PROG_CC' be
  212 # written in clear, in which case automake, when reading aclocal.m4,
  213 # will think it sees a *use*, and therefore will trigger all it's
  214 # C support machinery.  Also note that it means that autoscan, seeing
  215 # CC etc. in the Makefile, will ask for an AC_PROG_CC use...
  216 
  217 
  218 # _AM_DEPENDENCIES(NAME)
  219 # ----------------------
  220 # See how the compiler implements dependency checking.
  221 # NAME is "CC", "CXX", "OBJC", "OBJCXX", "UPC", or "GJC".
  222 # We try a few techniques and use that to set a single cache variable.
  223 #
  224 # We don't AC_REQUIRE the corresponding AC_PROG_CC since the latter was
  225 # modified to invoke _AM_DEPENDENCIES(CC); we would have a circular
  226 # dependency, and given that the user is not expected to run this macro,
  227 # just rely on AC_PROG_CC.
  228 AC_DEFUN([_AM_DEPENDENCIES],
  229 [AC_REQUIRE([AM_SET_DEPDIR])dnl
  230 AC_REQUIRE([AM_OUTPUT_DEPENDENCY_COMMANDS])dnl
  231 AC_REQUIRE([AM_MAKE_INCLUDE])dnl
  232 AC_REQUIRE([AM_DEP_TRACK])dnl
  233 
  234 m4_if([$1], [CC],   [depcc="$CC"   am_compiler_list=],
  235       [$1], [CXX],  [depcc="$CXX"  am_compiler_list=],
  236       [$1], [OBJC], [depcc="$OBJC" am_compiler_list='gcc3 gcc'],
  237       [$1], [OBJCXX], [depcc="$OBJCXX" am_compiler_list='gcc3 gcc'],
  238       [$1], [UPC],  [depcc="$UPC"  am_compiler_list=],
  239       [$1], [GCJ],  [depcc="$GCJ"  am_compiler_list='gcc3 gcc'],
  240                     [depcc="$$1"   am_compiler_list=])
  241 
  242 AC_CACHE_CHECK([dependency style of $depcc],
  243                [am_cv_$1_dependencies_compiler_type],
  244 [if test -z "$AMDEP_TRUE" && test -f "$am_depcomp"; then
  245   # We make a subdir and do the tests there.  Otherwise we can end up
  246   # making bogus files that we don't know about and never remove.  For
  247   # instance it was reported that on HP-UX the gcc test will end up
  248   # making a dummy file named 'D' -- because '-MD' means "put the output
  249   # in D".
  250   rm -rf conftest.dir
  251   mkdir conftest.dir
  252   # Copy depcomp to subdir because otherwise we won't find it if we're
  253   # using a relative directory.
  254   cp "$am_depcomp" conftest.dir
  255   cd conftest.dir
  256   # We will build objects and dependencies in a subdirectory because
  257   # it helps to detect inapplicable dependency modes.  For instance
  258   # both Tru64's cc and ICC support -MD to output dependencies as a
  259   # side effect of compilation, but ICC will put the dependencies in
  260   # the current directory while Tru64 will put them in the object
  261   # directory.
  262   mkdir sub
  263 
  264   am_cv_$1_dependencies_compiler_type=none
  265   if test "$am_compiler_list" = ""; then
  266      am_compiler_list=`sed -n ['s/^#*\([a-zA-Z0-9]*\))$/\1/p'] < ./depcomp`
  267   fi
  268   am__universal=false
  269   m4_case([$1], [CC],
  270     [case " $depcc " in #(
  271      *\ -arch\ *\ -arch\ *) am__universal=true ;;
  272      esac],
  273     [CXX],
  274     [case " $depcc " in #(
  275      *\ -arch\ *\ -arch\ *) am__universal=true ;;
  276      esac])
  277 
  278   for depmode in $am_compiler_list; do
  279     # Setup a source with many dependencies, because some compilers
  280     # like to wrap large dependency lists on column 80 (with \), and
  281     # we should not choose a depcomp mode which is confused by this.
  282     #
  283     # We need to recreate these files for each test, as the compiler may
  284     # overwrite some of them when testing with obscure command lines.
  285     # This happens at least with the AIX C compiler.
  286     : > sub/conftest.c
  287     for i in 1 2 3 4 5 6; do
  288       echo '#include "conftst'$i'.h"' >> sub/conftest.c
  289       # Using ": > sub/conftst$i.h" creates only sub/conftst1.h with
  290       # Solaris 10 /bin/sh.
  291       echo '/* dummy */' > sub/conftst$i.h
  292     done
  293     echo "${am__include} ${am__quote}sub/conftest.Po${am__quote}" > confmf
  294 
  295     # We check with '-c' and '-o' for the sake of the "dashmstdout"
  296     # mode.  It turns out that the SunPro C++ compiler does not properly
  297     # handle '-M -o', and we need to detect this.  Also, some Intel
  298     # versions had trouble with output in subdirs.
  299     am__obj=sub/conftest.${OBJEXT-o}
  300     am__minus_obj="-o $am__obj"
  301     case $depmode in
  302     gcc)
  303       # This depmode causes a compiler race in universal mode.
  304       test "$am__universal" = false || continue
  305       ;;
  306     nosideeffect)
  307       # After this tag, mechanisms are not by side-effect, so they'll
  308       # only be used when explicitly requested.
  309       if test "x$enable_dependency_tracking" = xyes; then
  310 	continue
  311       else
  312 	break
  313       fi
  314       ;;
  315     msvc7 | msvc7msys | msvisualcpp | msvcmsys)
  316       # This compiler won't grok '-c -o', but also, the minuso test has
  317       # not run yet.  These depmodes are late enough in the game, and
  318       # so weak that their functioning should not be impacted.
  319       am__obj=conftest.${OBJEXT-o}
  320       am__minus_obj=
  321       ;;
  322     none) break ;;
  323     esac
  324     if depmode=$depmode \
  325        source=sub/conftest.c object=$am__obj \
  326        depfile=sub/conftest.Po tmpdepfile=sub/conftest.TPo \
  327        $SHELL ./depcomp $depcc -c $am__minus_obj sub/conftest.c \
  328          >/dev/null 2>conftest.err &&
  329        grep sub/conftst1.h sub/conftest.Po > /dev/null 2>&1 &&
  330        grep sub/conftst6.h sub/conftest.Po > /dev/null 2>&1 &&
  331        grep $am__obj sub/conftest.Po > /dev/null 2>&1 &&
  332        ${MAKE-make} -s -f confmf > /dev/null 2>&1; then
  333       # icc doesn't choke on unknown options, it will just issue warnings
  334       # or remarks (even with -Werror).  So we grep stderr for any message
  335       # that says an option was ignored or not supported.
  336       # When given -MP, icc 7.0 and 7.1 complain thusly:
  337       #   icc: Command line warning: ignoring option '-M'; no argument required
  338       # The diagnosis changed in icc 8.0:
  339       #   icc: Command line remark: option '-MP' not supported
  340       if (grep 'ignoring option' conftest.err ||
  341           grep 'not supported' conftest.err) >/dev/null 2>&1; then :; else
  342         am_cv_$1_dependencies_compiler_type=$depmode
  343         break
  344       fi
  345     fi
  346   done
  347 
  348   cd ..
  349   rm -rf conftest.dir
  350 else
  351   am_cv_$1_dependencies_compiler_type=none
  352 fi
  353 ])
  354 AC_SUBST([$1DEPMODE], [depmode=$am_cv_$1_dependencies_compiler_type])
  355 AM_CONDITIONAL([am__fastdep$1], [
  356   test "x$enable_dependency_tracking" != xno \
  357   && test "$am_cv_$1_dependencies_compiler_type" = gcc3])
  358 ])
  359 
  360 
  361 # AM_SET_DEPDIR
  362 # -------------
  363 # Choose a directory name for dependency files.
  364 # This macro is AC_REQUIREd in _AM_DEPENDENCIES.
  365 AC_DEFUN([AM_SET_DEPDIR],
  366 [AC_REQUIRE([AM_SET_LEADING_DOT])dnl
  367 AC_SUBST([DEPDIR], ["${am__leading_dot}deps"])dnl
  368 ])
  369 
  370 
  371 # AM_DEP_TRACK
  372 # ------------
  373 AC_DEFUN([AM_DEP_TRACK],
  374 [AC_ARG_ENABLE([dependency-tracking], [dnl
  375 AS_HELP_STRING(
  376   [--enable-dependency-tracking],
  377   [do not reject slow dependency extractors])
  378 AS_HELP_STRING(
  379   [--disable-dependency-tracking],
  380   [speeds up one-time build])])
  381 if test "x$enable_dependency_tracking" != xno; then
  382   am_depcomp="$ac_aux_dir/depcomp"
  383   AMDEPBACKSLASH='\'
  384   am__nodep='_no'
  385 fi
  386 AM_CONDITIONAL([AMDEP], [test "x$enable_dependency_tracking" != xno])
  387 AC_SUBST([AMDEPBACKSLASH])dnl
  388 _AM_SUBST_NOTMAKE([AMDEPBACKSLASH])dnl
  389 AC_SUBST([am__nodep])dnl
  390 _AM_SUBST_NOTMAKE([am__nodep])dnl
  391 ])
  392 
  393 # Generate code to set up dependency tracking.              -*- Autoconf -*-
  394 
  395 # Copyright (C) 1999-2021 Free Software Foundation, Inc.
  396 #
  397 # This file is free software; the Free Software Foundation
  398 # gives unlimited permission to copy and/or distribute it,
  399 # with or without modifications, as long as this notice is preserved.
  400 
  401 # _AM_OUTPUT_DEPENDENCY_COMMANDS
  402 # ------------------------------
  403 AC_DEFUN([_AM_OUTPUT_DEPENDENCY_COMMANDS],
  404 [{
  405   # Older Autoconf quotes --file arguments for eval, but not when files
  406   # are listed without --file.  Let's play safe and only enable the eval
  407   # if we detect the quoting.
  408   # TODO: see whether this extra hack can be removed once we start
  409   # requiring Autoconf 2.70 or later.
  410   AS_CASE([$CONFIG_FILES],
  411           [*\'*], [eval set x "$CONFIG_FILES"],
  412           [*], [set x $CONFIG_FILES])
  413   shift
  414   # Used to flag and report bootstrapping failures.
  415   am_rc=0
  416   for am_mf
  417   do
  418     # Strip MF so we end up with the name of the file.
  419     am_mf=`AS_ECHO(["$am_mf"]) | sed -e 's/:.*$//'`
  420     # Check whether this is an Automake generated Makefile which includes
  421     # dependency-tracking related rules and includes.
  422     # Grep'ing the whole file directly is not great: AIX grep has a line
  423     # limit of 2048, but all sed's we know have understand at least 4000.
  424     sed -n 's,^am--depfiles:.*,X,p' "$am_mf" | grep X >/dev/null 2>&1 \
  425       || continue
  426     am_dirpart=`AS_DIRNAME(["$am_mf"])`
  427     am_filepart=`AS_BASENAME(["$am_mf"])`
  428     AM_RUN_LOG([cd "$am_dirpart" \
  429       && sed -e '/# am--include-marker/d' "$am_filepart" \
  430         | $MAKE -f - am--depfiles]) || am_rc=$?
  431   done
  432   if test $am_rc -ne 0; then
  433     AC_MSG_FAILURE([Something went wrong bootstrapping makefile fragments
  434     for automatic dependency tracking.  If GNU make was not used, consider
  435     re-running the configure script with MAKE="gmake" (or whatever is
  436     necessary).  You can also try re-running configure with the
  437     '--disable-dependency-tracking' option to at least be able to build
  438     the package (albeit without support for automatic dependency tracking).])
  439   fi
  440   AS_UNSET([am_dirpart])
  441   AS_UNSET([am_filepart])
  442   AS_UNSET([am_mf])
  443   AS_UNSET([am_rc])
  444   rm -f conftest-deps.mk
  445 }
  446 ])# _AM_OUTPUT_DEPENDENCY_COMMANDS
  447 
  448 
  449 # AM_OUTPUT_DEPENDENCY_COMMANDS
  450 # -----------------------------
  451 # This macro should only be invoked once -- use via AC_REQUIRE.
  452 #
  453 # This code is only required when automatic dependency tracking is enabled.
  454 # This creates each '.Po' and '.Plo' makefile fragment that we'll need in
  455 # order to bootstrap the dependency handling code.
  456 AC_DEFUN([AM_OUTPUT_DEPENDENCY_COMMANDS],
  457 [AC_CONFIG_COMMANDS([depfiles],
  458      [test x"$AMDEP_TRUE" != x"" || _AM_OUTPUT_DEPENDENCY_COMMANDS],
  459      [AMDEP_TRUE="$AMDEP_TRUE" MAKE="${MAKE-make}"])])
  460 
  461 # Do all the work for Automake.                             -*- Autoconf -*-
  462 
  463 # Copyright (C) 1996-2021 Free Software Foundation, Inc.
  464 #
  465 # This file is free software; the Free Software Foundation
  466 # gives unlimited permission to copy and/or distribute it,
  467 # with or without modifications, as long as this notice is preserved.
  468 
  469 # This macro actually does too much.  Some checks are only needed if
  470 # your package does certain things.  But this isn't really a big deal.
  471 
  472 dnl Redefine AC_PROG_CC to automatically invoke _AM_PROG_CC_C_O.
  473 m4_define([AC_PROG_CC],
  474 m4_defn([AC_PROG_CC])
  475 [_AM_PROG_CC_C_O
  476 ])
  477 
  478 # AM_INIT_AUTOMAKE(PACKAGE, VERSION, [NO-DEFINE])
  479 # AM_INIT_AUTOMAKE([OPTIONS])
  480 # -----------------------------------------------
  481 # The call with PACKAGE and VERSION arguments is the old style
  482 # call (pre autoconf-2.50), which is being phased out.  PACKAGE
  483 # and VERSION should now be passed to AC_INIT and removed from
  484 # the call to AM_INIT_AUTOMAKE.
  485 # We support both call styles for the transition.  After
  486 # the next Automake release, Autoconf can make the AC_INIT
  487 # arguments mandatory, and then we can depend on a new Autoconf
  488 # release and drop the old call support.
  489 AC_DEFUN([AM_INIT_AUTOMAKE],
  490 [AC_PREREQ([2.65])dnl
  491 m4_ifdef([_$0_ALREADY_INIT],
  492   [m4_fatal([$0 expanded multiple times
  493 ]m4_defn([_$0_ALREADY_INIT]))],
  494   [m4_define([_$0_ALREADY_INIT], m4_expansion_stack)])dnl
  495 dnl Autoconf wants to disallow AM_ names.  We explicitly allow
  496 dnl the ones we care about.
  497 m4_pattern_allow([^AM_[A-Z]+FLAGS$])dnl
  498 AC_REQUIRE([AM_SET_CURRENT_AUTOMAKE_VERSION])dnl
  499 AC_REQUIRE([AC_PROG_INSTALL])dnl
  500 if test "`cd $srcdir && pwd`" != "`pwd`"; then
  501   # Use -I$(srcdir) only when $(srcdir) != ., so that make's output
  502   # is not polluted with repeated "-I."
  503   AC_SUBST([am__isrc], [' -I$(srcdir)'])_AM_SUBST_NOTMAKE([am__isrc])dnl
  504   # test to see if srcdir already configured
  505   if test -f $srcdir/config.status; then
  506     AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
  507   fi
  508 fi
  509 
  510 # test whether we have cygpath
  511 if test -z "$CYGPATH_W"; then
  512   if (cygpath --version) >/dev/null 2>/dev/null; then
  513     CYGPATH_W='cygpath -w'
  514   else
  515     CYGPATH_W=echo
  516   fi
  517 fi
  518 AC_SUBST([CYGPATH_W])
  519 
  520 # Define the identity of the package.
  521 dnl Distinguish between old-style and new-style calls.
  522 m4_ifval([$2],
  523 [AC_DIAGNOSE([obsolete],
  524              [$0: two- and three-arguments forms are deprecated.])
  525 m4_ifval([$3], [_AM_SET_OPTION([no-define])])dnl
  526  AC_SUBST([PACKAGE], [$1])dnl
  527  AC_SUBST([VERSION], [$2])],
  528 [_AM_SET_OPTIONS([$1])dnl
  529 dnl Diagnose old-style AC_INIT with new-style AM_AUTOMAKE_INIT.
  530 m4_if(
  531   m4_ifset([AC_PACKAGE_NAME], [ok]):m4_ifset([AC_PACKAGE_VERSION], [ok]),
  532   [ok:ok],,
  533   [m4_fatal([AC_INIT should be called with package and version arguments])])dnl
  534  AC_SUBST([PACKAGE], ['AC_PACKAGE_TARNAME'])dnl
  535  AC_SUBST([VERSION], ['AC_PACKAGE_VERSION'])])dnl
  536 
  537 _AM_IF_OPTION([no-define],,
  538 [AC_DEFINE_UNQUOTED([PACKAGE], ["$PACKAGE"], [Name of package])
  539  AC_DEFINE_UNQUOTED([VERSION], ["$VERSION"], [Version number of package])])dnl
  540 
  541 # Some tools Automake needs.
  542 AC_REQUIRE([AM_SANITY_CHECK])dnl
  543 AC_REQUIRE([AC_ARG_PROGRAM])dnl
  544 AM_MISSING_PROG([ACLOCAL], [aclocal-${am__api_version}])
  545 AM_MISSING_PROG([AUTOCONF], [autoconf])
  546 AM_MISSING_PROG([AUTOMAKE], [automake-${am__api_version}])
  547 AM_MISSING_PROG([AUTOHEADER], [autoheader])
  548 AM_MISSING_PROG([MAKEINFO], [makeinfo])
  549 AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
  550 AC_REQUIRE([AM_PROG_INSTALL_STRIP])dnl
  551 AC_REQUIRE([AC_PROG_MKDIR_P])dnl
  552 # For better backward compatibility.  To be removed once Automake 1.9.x
  553 # dies out for good.  For more background, see:
  554 # <https://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
  555 # <https://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
  556 AC_SUBST([mkdir_p], ['$(MKDIR_P)'])
  557 # We need awk for the "check" target (and possibly the TAP driver).  The
  558 # system "awk" is bad on some platforms.
  559 AC_REQUIRE([AC_PROG_AWK])dnl
  560 AC_REQUIRE([AC_PROG_MAKE_SET])dnl
  561 AC_REQUIRE([AM_SET_LEADING_DOT])dnl
  562 _AM_IF_OPTION([tar-ustar], [_AM_PROG_TAR([ustar])],
  563 	      [_AM_IF_OPTION([tar-pax], [_AM_PROG_TAR([pax])],
  564 			     [_AM_PROG_TAR([v7])])])
  565 _AM_IF_OPTION([no-dependencies],,
  566 [AC_PROVIDE_IFELSE([AC_PROG_CC],
  567 		  [_AM_DEPENDENCIES([CC])],
  568 		  [m4_define([AC_PROG_CC],
  569 			     m4_defn([AC_PROG_CC])[_AM_DEPENDENCIES([CC])])])dnl
  570 AC_PROVIDE_IFELSE([AC_PROG_CXX],
  571 		  [_AM_DEPENDENCIES([CXX])],
  572 		  [m4_define([AC_PROG_CXX],
  573 			     m4_defn([AC_PROG_CXX])[_AM_DEPENDENCIES([CXX])])])dnl
  574 AC_PROVIDE_IFELSE([AC_PROG_OBJC],
  575 		  [_AM_DEPENDENCIES([OBJC])],
  576 		  [m4_define([AC_PROG_OBJC],
  577 			     m4_defn([AC_PROG_OBJC])[_AM_DEPENDENCIES([OBJC])])])dnl
  578 AC_PROVIDE_IFELSE([AC_PROG_OBJCXX],
  579 		  [_AM_DEPENDENCIES([OBJCXX])],
  580 		  [m4_define([AC_PROG_OBJCXX],
  581 			     m4_defn([AC_PROG_OBJCXX])[_AM_DEPENDENCIES([OBJCXX])])])dnl
  582 ])
  583 # Variables for tags utilities; see am/tags.am
  584 if test -z "$CTAGS"; then
  585   CTAGS=ctags
  586 fi
  587 AC_SUBST([CTAGS])
  588 if test -z "$ETAGS"; then
  589   ETAGS=etags
  590 fi
  591 AC_SUBST([ETAGS])
  592 if test -z "$CSCOPE"; then
  593   CSCOPE=cscope
  594 fi
  595 AC_SUBST([CSCOPE])
  596 
  597 AC_REQUIRE([AM_SILENT_RULES])dnl
  598 dnl The testsuite driver may need to know about EXEEXT, so add the
  599 dnl 'am__EXEEXT' conditional if _AM_COMPILER_EXEEXT was seen.  This
  600 dnl macro is hooked onto _AC_COMPILER_EXEEXT early, see below.
  601 AC_CONFIG_COMMANDS_PRE(dnl
  602 [m4_provide_if([_AM_COMPILER_EXEEXT],
  603   [AM_CONDITIONAL([am__EXEEXT], [test -n "$EXEEXT"])])])dnl
  604 
  605 # POSIX will say in a future version that running "rm -f" with no argument
  606 # is OK; and we want to be able to make that assumption in our Makefile
  607 # recipes.  So use an aggressive probe to check that the usage we want is
  608 # actually supported "in the wild" to an acceptable degree.
  609 # See automake bug#10828.
  610 # To make any issue more visible, cause the running configure to be aborted
  611 # by default if the 'rm' program in use doesn't match our expectations; the
  612 # user can still override this though.
  613 if rm -f && rm -fr && rm -rf; then : OK; else
  614   cat >&2 <<'END'
  615 Oops!
  616 
  617 Your 'rm' program seems unable to run without file operands specified
  618 on the command line, even when the '-f' option is present.  This is contrary
  619 to the behaviour of most rm programs out there, and not conforming with
  620 the upcoming POSIX standard: <http://austingroupbugs.net/view.php?id=542>
  621 
  622 Please tell bug-automake@gnu.org about your system, including the value
  623 of your $PATH and any error possibly output before this message.  This
  624 can help us improve future automake versions.
  625 
  626 END
  627   if test x"$ACCEPT_INFERIOR_RM_PROGRAM" = x"yes"; then
  628     echo 'Configuration will proceed anyway, since you have set the' >&2
  629     echo 'ACCEPT_INFERIOR_RM_PROGRAM variable to "yes"' >&2
  630     echo >&2
  631   else
  632     cat >&2 <<'END'
  633 Aborting the configuration process, to ensure you take notice of the issue.
  634 
  635 You can download and install GNU coreutils to get an 'rm' implementation
  636 that behaves properly: <https://www.gnu.org/software/coreutils/>.
  637 
  638 If you want to complete the configuration process using your problematic
  639 'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM
  640 to "yes", and re-run configure.
  641 
  642 END
  643     AC_MSG_ERROR([Your 'rm' program is bad, sorry.])
  644   fi
  645 fi
  646 dnl The trailing newline in this macro's definition is deliberate, for
  647 dnl backward compatibility and to allow trailing 'dnl'-style comments
  648 dnl after the AM_INIT_AUTOMAKE invocation. See automake bug#16841.
  649 ])
  650 
  651 dnl Hook into '_AC_COMPILER_EXEEXT' early to learn its expansion.  Do not
  652 dnl add the conditional right here, as _AC_COMPILER_EXEEXT may be further
  653 dnl mangled by Autoconf and run in a shell conditional statement.
  654 m4_define([_AC_COMPILER_EXEEXT],
  655 m4_defn([_AC_COMPILER_EXEEXT])[m4_provide([_AM_COMPILER_EXEEXT])])
  656 
  657 # When config.status generates a header, we must update the stamp-h file.
  658 # This file resides in the same directory as the config header
  659 # that is generated.  The stamp files are numbered to have different names.
  660 
  661 # Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the
  662 # loop where config.status creates the headers, so we can generate
  663 # our stamp files there.
  664 AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK],
  665 [# Compute $1's index in $config_headers.
  666 _am_arg=$1
  667 _am_stamp_count=1
  668 for _am_header in $config_headers :; do
  669   case $_am_header in
  670     $_am_arg | $_am_arg:* )
  671       break ;;
  672     * )
  673       _am_stamp_count=`expr $_am_stamp_count + 1` ;;
  674   esac
  675 done
  676 echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
  677 
  678 # Copyright (C) 2001-2021 Free Software Foundation, Inc.
  679 #
  680 # This file is free software; the Free Software Foundation
  681 # gives unlimited permission to copy and/or distribute it,
  682 # with or without modifications, as long as this notice is preserved.
  683 
  684 # AM_PROG_INSTALL_SH
  685 # ------------------
  686 # Define $install_sh.
  687 AC_DEFUN([AM_PROG_INSTALL_SH],
  688 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
  689 if test x"${install_sh+set}" != xset; then
  690   case $am_aux_dir in
  691   *\ * | *\	*)
  692     install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
  693   *)
  694     install_sh="\${SHELL} $am_aux_dir/install-sh"
  695   esac
  696 fi
  697 AC_SUBST([install_sh])])
  698 
  699 # Copyright (C) 2003-2021 Free Software Foundation, Inc.
  700 #
  701 # This file is free software; the Free Software Foundation
  702 # gives unlimited permission to copy and/or distribute it,
  703 # with or without modifications, as long as this notice is preserved.
  704 
  705 # Check whether the underlying file-system supports filenames
  706 # with a leading dot.  For instance MS-DOS doesn't.
  707 AC_DEFUN([AM_SET_LEADING_DOT],
  708 [rm -rf .tst 2>/dev/null
  709 mkdir .tst 2>/dev/null
  710 if test -d .tst; then
  711   am__leading_dot=.
  712 else
  713   am__leading_dot=_
  714 fi
  715 rmdir .tst 2>/dev/null
  716 AC_SUBST([am__leading_dot])])
  717 
  718 # Add --enable-maintainer-mode option to configure.         -*- Autoconf -*-
  719 # From Jim Meyering
  720 
  721 # Copyright (C) 1996-2021 Free Software Foundation, Inc.
  722 #
  723 # This file is free software; the Free Software Foundation
  724 # gives unlimited permission to copy and/or distribute it,
  725 # with or without modifications, as long as this notice is preserved.
  726 
  727 # AM_MAINTAINER_MODE([DEFAULT-MODE])
  728 # ----------------------------------
  729 # Control maintainer-specific portions of Makefiles.
  730 # Default is to disable them, unless 'enable' is passed literally.
  731 # For symmetry, 'disable' may be passed as well.  Anyway, the user
  732 # can override the default with the --enable/--disable switch.
  733 AC_DEFUN([AM_MAINTAINER_MODE],
  734 [m4_case(m4_default([$1], [disable]),
  735        [enable], [m4_define([am_maintainer_other], [disable])],
  736        [disable], [m4_define([am_maintainer_other], [enable])],
  737        [m4_define([am_maintainer_other], [enable])
  738         m4_warn([syntax], [unexpected argument to AM@&t@_MAINTAINER_MODE: $1])])
  739 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
  740   dnl maintainer-mode's default is 'disable' unless 'enable' is passed
  741   AC_ARG_ENABLE([maintainer-mode],
  742     [AS_HELP_STRING([--]am_maintainer_other[-maintainer-mode],
  743       am_maintainer_other[ make rules and dependencies not useful
  744       (and sometimes confusing) to the casual installer])],
  745     [USE_MAINTAINER_MODE=$enableval],
  746     [USE_MAINTAINER_MODE=]m4_if(am_maintainer_other, [enable], [no], [yes]))
  747   AC_MSG_RESULT([$USE_MAINTAINER_MODE])
  748   AM_CONDITIONAL([MAINTAINER_MODE], [test $USE_MAINTAINER_MODE = yes])
  749   MAINT=$MAINTAINER_MODE_TRUE
  750   AC_SUBST([MAINT])dnl
  751 ]
  752 )
  753 
  754 # Check to see how 'make' treats includes.	            -*- Autoconf -*-
  755 
  756 # Copyright (C) 2001-2021 Free Software Foundation, Inc.
  757 #
  758 # This file is free software; the Free Software Foundation
  759 # gives unlimited permission to copy and/or distribute it,
  760 # with or without modifications, as long as this notice is preserved.
  761 
  762 # AM_MAKE_INCLUDE()
  763 # -----------------
  764 # Check whether make has an 'include' directive that can support all
  765 # the idioms we need for our automatic dependency tracking code.
  766 AC_DEFUN([AM_MAKE_INCLUDE],
  767 [AC_MSG_CHECKING([whether ${MAKE-make} supports the include directive])
  768 cat > confinc.mk << 'END'
  769 am__doit:
  770 	@echo this is the am__doit target >confinc.out
  771 .PHONY: am__doit
  772 END
  773 am__include="#"
  774 am__quote=
  775 # BSD make does it like this.
  776 echo '.include "confinc.mk" # ignored' > confmf.BSD
  777 # Other make implementations (GNU, Solaris 10, AIX) do it like this.
  778 echo 'include confinc.mk # ignored' > confmf.GNU
  779 _am_result=no
  780 for s in GNU BSD; do
  781   AM_RUN_LOG([${MAKE-make} -f confmf.$s && cat confinc.out])
  782   AS_CASE([$?:`cat confinc.out 2>/dev/null`],
  783       ['0:this is the am__doit target'],
  784       [AS_CASE([$s],
  785           [BSD], [am__include='.include' am__quote='"'],
  786           [am__include='include' am__quote=''])])
  787   if test "$am__include" != "#"; then
  788     _am_result="yes ($s style)"
  789     break
  790   fi
  791 done
  792 rm -f confinc.* confmf.*
  793 AC_MSG_RESULT([${_am_result}])
  794 AC_SUBST([am__include])])
  795 AC_SUBST([am__quote])])
  796 
  797 # Fake the existence of programs that GNU maintainers use.  -*- Autoconf -*-
  798 
  799 # Copyright (C) 1997-2021 Free Software Foundation, Inc.
  800 #
  801 # This file is free software; the Free Software Foundation
  802 # gives unlimited permission to copy and/or distribute it,
  803 # with or without modifications, as long as this notice is preserved.
  804 
  805 # AM_MISSING_PROG(NAME, PROGRAM)
  806 # ------------------------------
  807 AC_DEFUN([AM_MISSING_PROG],
  808 [AC_REQUIRE([AM_MISSING_HAS_RUN])
  809 $1=${$1-"${am_missing_run}$2"}
  810 AC_SUBST($1)])
  811 
  812 # AM_MISSING_HAS_RUN
  813 # ------------------
  814 # Define MISSING if not defined so far and test if it is modern enough.
  815 # If it is, set am_missing_run to use it, otherwise, to nothing.
  816 AC_DEFUN([AM_MISSING_HAS_RUN],
  817 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
  818 AC_REQUIRE_AUX_FILE([missing])dnl
  819 if test x"${MISSING+set}" != xset; then
  820   MISSING="\${SHELL} '$am_aux_dir/missing'"
  821 fi
  822 # Use eval to expand $SHELL
  823 if eval "$MISSING --is-lightweight"; then
  824   am_missing_run="$MISSING "
  825 else
  826   am_missing_run=
  827   AC_MSG_WARN(['missing' script is too old or missing])
  828 fi
  829 ])
  830 
  831 # Helper functions for option handling.                     -*- Autoconf -*-
  832 
  833 # Copyright (C) 2001-2021 Free Software Foundation, Inc.
  834 #
  835 # This file is free software; the Free Software Foundation
  836 # gives unlimited permission to copy and/or distribute it,
  837 # with or without modifications, as long as this notice is preserved.
  838 
  839 # _AM_MANGLE_OPTION(NAME)
  840 # -----------------------
  841 AC_DEFUN([_AM_MANGLE_OPTION],
  842 [[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
  843 
  844 # _AM_SET_OPTION(NAME)
  845 # --------------------
  846 # Set option NAME.  Presently that only means defining a flag for this option.
  847 AC_DEFUN([_AM_SET_OPTION],
  848 [m4_define(_AM_MANGLE_OPTION([$1]), [1])])
  849 
  850 # _AM_SET_OPTIONS(OPTIONS)
  851 # ------------------------
  852 # OPTIONS is a space-separated list of Automake options.
  853 AC_DEFUN([_AM_SET_OPTIONS],
  854 [m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
  855 
  856 # _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
  857 # -------------------------------------------
  858 # Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
  859 AC_DEFUN([_AM_IF_OPTION],
  860 [m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
  861 
  862 # Copyright (C) 1999-2021 Free Software Foundation, Inc.
  863 #
  864 # This file is free software; the Free Software Foundation
  865 # gives unlimited permission to copy and/or distribute it,
  866 # with or without modifications, as long as this notice is preserved.
  867 
  868 # _AM_PROG_CC_C_O
  869 # ---------------
  870 # Like AC_PROG_CC_C_O, but changed for automake.  We rewrite AC_PROG_CC
  871 # to automatically call this.
  872 AC_DEFUN([_AM_PROG_CC_C_O],
  873 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
  874 AC_REQUIRE_AUX_FILE([compile])dnl
  875 AC_LANG_PUSH([C])dnl
  876 AC_CACHE_CHECK(
  877   [whether $CC understands -c and -o together],
  878   [am_cv_prog_cc_c_o],
  879   [AC_LANG_CONFTEST([AC_LANG_PROGRAM([])])
  880   # Make sure it works both with $CC and with simple cc.
  881   # Following AC_PROG_CC_C_O, we do the test twice because some
  882   # compilers refuse to overwrite an existing .o file with -o,
  883   # though they will create one.
  884   am_cv_prog_cc_c_o=yes
  885   for am_i in 1 2; do
  886     if AM_RUN_LOG([$CC -c conftest.$ac_ext -o conftest2.$ac_objext]) \
  887          && test -f conftest2.$ac_objext; then
  888       : OK
  889     else
  890       am_cv_prog_cc_c_o=no
  891       break
  892     fi
  893   done
  894   rm -f core conftest*
  895   unset am_i])
  896 if test "$am_cv_prog_cc_c_o" != yes; then
  897    # Losing compiler, so override with the script.
  898    # FIXME: It is wrong to rewrite CC.
  899    # But if we don't then we get into trouble of one sort or another.
  900    # A longer-term fix would be to have automake use am__CC in this case,
  901    # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
  902    CC="$am_aux_dir/compile $CC"
  903 fi
  904 AC_LANG_POP([C])])
  905 
  906 # For backward compatibility.
  907 AC_DEFUN_ONCE([AM_PROG_CC_C_O], [AC_REQUIRE([AC_PROG_CC])])
  908 
  909 # Copyright (C) 2001-2021 Free Software Foundation, Inc.
  910 #
  911 # This file is free software; the Free Software Foundation
  912 # gives unlimited permission to copy and/or distribute it,
  913 # with or without modifications, as long as this notice is preserved.
  914 
  915 # AM_RUN_LOG(COMMAND)
  916 # -------------------
  917 # Run COMMAND, save the exit status in ac_status, and log it.
  918 # (This has been adapted from Autoconf's _AC_RUN_LOG macro.)
  919 AC_DEFUN([AM_RUN_LOG],
  920 [{ echo "$as_me:$LINENO: $1" >&AS_MESSAGE_LOG_FD
  921    ($1) >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD
  922    ac_status=$?
  923    echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
  924    (exit $ac_status); }])
  925 
  926 # Check to make sure that the build environment is sane.    -*- Autoconf -*-
  927 
  928 # Copyright (C) 1996-2021 Free Software Foundation, Inc.
  929 #
  930 # This file is free software; the Free Software Foundation
  931 # gives unlimited permission to copy and/or distribute it,
  932 # with or without modifications, as long as this notice is preserved.
  933 
  934 # AM_SANITY_CHECK
  935 # ---------------
  936 AC_DEFUN([AM_SANITY_CHECK],
  937 [AC_MSG_CHECKING([whether build environment is sane])
  938 # Reject unsafe characters in $srcdir or the absolute working directory
  939 # name.  Accept space and tab only in the latter.
  940 am_lf='
  941 '
  942 case `pwd` in
  943   *[[\\\"\#\$\&\'\`$am_lf]]*)
  944     AC_MSG_ERROR([unsafe absolute working directory name]);;
  945 esac
  946 case $srcdir in
  947   *[[\\\"\#\$\&\'\`$am_lf\ \	]]*)
  948     AC_MSG_ERROR([unsafe srcdir value: '$srcdir']);;
  949 esac
  950 
  951 # Do 'set' in a subshell so we don't clobber the current shell's
  952 # arguments.  Must try -L first in case configure is actually a
  953 # symlink; some systems play weird games with the mod time of symlinks
  954 # (eg FreeBSD returns the mod time of the symlink's containing
  955 # directory).
  956 if (
  957    am_has_slept=no
  958    for am_try in 1 2; do
  959      echo "timestamp, slept: $am_has_slept" > conftest.file
  960      set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
  961      if test "$[*]" = "X"; then
  962 	# -L didn't work.
  963 	set X `ls -t "$srcdir/configure" conftest.file`
  964      fi
  965      if test "$[*]" != "X $srcdir/configure conftest.file" \
  966 	&& test "$[*]" != "X conftest.file $srcdir/configure"; then
  967 
  968 	# If neither matched, then we have a broken ls.  This can happen
  969 	# if, for instance, CONFIG_SHELL is bash and it inherits a
  970 	# broken ls alias from the environment.  This has actually
  971 	# happened.  Such a system could not be considered "sane".
  972 	AC_MSG_ERROR([ls -t appears to fail.  Make sure there is not a broken
  973   alias in your environment])
  974      fi
  975      if test "$[2]" = conftest.file || test $am_try -eq 2; then
  976        break
  977      fi
  978      # Just in case.
  979      sleep 1
  980      am_has_slept=yes
  981    done
  982    test "$[2]" = conftest.file
  983    )
  984 then
  985    # Ok.
  986    :
  987 else
  988    AC_MSG_ERROR([newly created file is older than distributed files!
  989 Check your system clock])
  990 fi
  991 AC_MSG_RESULT([yes])
  992 # If we didn't sleep, we still need to ensure time stamps of config.status and
  993 # generated files are strictly newer.
  994 am_sleep_pid=
  995 if grep 'slept: no' conftest.file >/dev/null 2>&1; then
  996   ( sleep 1 ) &
  997   am_sleep_pid=$!
  998 fi
  999 AC_CONFIG_COMMANDS_PRE(
 1000   [AC_MSG_CHECKING([that generated files are newer than configure])
 1001    if test -n "$am_sleep_pid"; then
 1002      # Hide warnings about reused PIDs.
 1003      wait $am_sleep_pid 2>/dev/null
 1004    fi
 1005    AC_MSG_RESULT([done])])
 1006 rm -f conftest.file
 1007 ])
 1008 
 1009 # Copyright (C) 2009-2021 Free Software Foundation, Inc.
 1010 #
 1011 # This file is free software; the Free Software Foundation
 1012 # gives unlimited permission to copy and/or distribute it,
 1013 # with or without modifications, as long as this notice is preserved.
 1014 
 1015 # AM_SILENT_RULES([DEFAULT])
 1016 # --------------------------
 1017 # Enable less verbose build rules; with the default set to DEFAULT
 1018 # ("yes" being less verbose, "no" or empty being verbose).
 1019 AC_DEFUN([AM_SILENT_RULES],
 1020 [AC_ARG_ENABLE([silent-rules], [dnl
 1021 AS_HELP_STRING(
 1022   [--enable-silent-rules],
 1023   [less verbose build output (undo: "make V=1")])
 1024 AS_HELP_STRING(
 1025   [--disable-silent-rules],
 1026   [verbose build output (undo: "make V=0")])dnl
 1027 ])
 1028 case $enable_silent_rules in @%:@ (((
 1029   yes) AM_DEFAULT_VERBOSITY=0;;
 1030    no) AM_DEFAULT_VERBOSITY=1;;
 1031     *) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);;
 1032 esac
 1033 dnl
 1034 dnl A few 'make' implementations (e.g., NonStop OS and NextStep)
 1035 dnl do not support nested variable expansions.
 1036 dnl See automake bug#9928 and bug#10237.
 1037 am_make=${MAKE-make}
 1038 AC_CACHE_CHECK([whether $am_make supports nested variables],
 1039    [am_cv_make_support_nested_variables],
 1040    [if AS_ECHO([['TRUE=$(BAR$(V))
 1041 BAR0=false
 1042 BAR1=true
 1043 V=1
 1044 am__doit:
 1045 	@$(TRUE)
 1046 .PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then
 1047   am_cv_make_support_nested_variables=yes
 1048 else
 1049   am_cv_make_support_nested_variables=no
 1050 fi])
 1051 if test $am_cv_make_support_nested_variables = yes; then
 1052   dnl Using '$V' instead of '$(V)' breaks IRIX make.
 1053   AM_V='$(V)'
 1054   AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
 1055 else
 1056   AM_V=$AM_DEFAULT_VERBOSITY
 1057   AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
 1058 fi
 1059 AC_SUBST([AM_V])dnl
 1060 AM_SUBST_NOTMAKE([AM_V])dnl
 1061 AC_SUBST([AM_DEFAULT_V])dnl
 1062 AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl
 1063 AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
 1064 AM_BACKSLASH='\'
 1065 AC_SUBST([AM_BACKSLASH])dnl
 1066 _AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
 1067 ])
 1068 
 1069 # Copyright (C) 2001-2021 Free Software Foundation, Inc.
 1070 #
 1071 # This file is free software; the Free Software Foundation
 1072 # gives unlimited permission to copy and/or distribute it,
 1073 # with or without modifications, as long as this notice is preserved.
 1074 
 1075 # AM_PROG_INSTALL_STRIP
 1076 # ---------------------
 1077 # One issue with vendor 'install' (even GNU) is that you can't
 1078 # specify the program used to strip binaries.  This is especially
 1079 # annoying in cross-compiling environments, where the build's strip
 1080 # is unlikely to handle the host's binaries.
 1081 # Fortunately install-sh will honor a STRIPPROG variable, so we
 1082 # always use install-sh in "make install-strip", and initialize
 1083 # STRIPPROG with the value of the STRIP variable (set by the user).
 1084 AC_DEFUN([AM_PROG_INSTALL_STRIP],
 1085 [AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
 1086 # Installed binaries are usually stripped using 'strip' when the user
 1087 # run "make install-strip".  However 'strip' might not be the right
 1088 # tool to use in cross-compilation environments, therefore Automake
 1089 # will honor the 'STRIP' environment variable to overrule this program.
 1090 dnl Don't test for $cross_compiling = yes, because it might be 'maybe'.
 1091 if test "$cross_compiling" != no; then
 1092   AC_CHECK_TOOL([STRIP], [strip], :)
 1093 fi
 1094 INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
 1095 AC_SUBST([INSTALL_STRIP_PROGRAM])])
 1096 
 1097 # Copyright (C) 2006-2021 Free Software Foundation, Inc.
 1098 #
 1099 # This file is free software; the Free Software Foundation
 1100 # gives unlimited permission to copy and/or distribute it,
 1101 # with or without modifications, as long as this notice is preserved.
 1102 
 1103 # _AM_SUBST_NOTMAKE(VARIABLE)
 1104 # ---------------------------
 1105 # Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
 1106 # This macro is traced by Automake.
 1107 AC_DEFUN([_AM_SUBST_NOTMAKE])
 1108 
 1109 # AM_SUBST_NOTMAKE(VARIABLE)
 1110 # --------------------------
 1111 # Public sister of _AM_SUBST_NOTMAKE.
 1112 AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
 1113 
 1114 # Check how to create a tarball.                            -*- Autoconf -*-
 1115 
 1116 # Copyright (C) 2004-2021 Free Software Foundation, Inc.
 1117 #
 1118 # This file is free software; the Free Software Foundation
 1119 # gives unlimited permission to copy and/or distribute it,
 1120 # with or without modifications, as long as this notice is preserved.
 1121 
 1122 # _AM_PROG_TAR(FORMAT)
 1123 # --------------------
 1124 # Check how to create a tarball in format FORMAT.
 1125 # FORMAT should be one of 'v7', 'ustar', or 'pax'.
 1126 #
 1127 # Substitute a variable $(am__tar) that is a command
 1128 # writing to stdout a FORMAT-tarball containing the directory
 1129 # $tardir.
 1130 #     tardir=directory && $(am__tar) > result.tar
 1131 #
 1132 # Substitute a variable $(am__untar) that extract such
 1133 # a tarball read from stdin.
 1134 #     $(am__untar) < result.tar
 1135 #
 1136 AC_DEFUN([_AM_PROG_TAR],
 1137 [# Always define AMTAR for backward compatibility.  Yes, it's still used
 1138 # in the wild :-(  We should find a proper way to deprecate it ...
 1139 AC_SUBST([AMTAR], ['$${TAR-tar}'])
 1140 
 1141 # We'll loop over all known methods to create a tar archive until one works.
 1142 _am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
 1143 
 1144 m4_if([$1], [v7],
 1145   [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],
 1146 
 1147   [m4_case([$1],
 1148     [ustar],
 1149      [# The POSIX 1988 'ustar' format is defined with fixed-size fields.
 1150       # There is notably a 21 bits limit for the UID and the GID.  In fact,
 1151       # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343
 1152       # and bug#13588).
 1153       am_max_uid=2097151 # 2^21 - 1
 1154       am_max_gid=$am_max_uid
 1155       # The $UID and $GID variables are not portable, so we need to resort
 1156       # to the POSIX-mandated id(1) utility.  Errors in the 'id' calls
 1157       # below are definitely unexpected, so allow the users to see them
 1158       # (that is, avoid stderr redirection).
 1159       am_uid=`id -u || echo unknown`
 1160       am_gid=`id -g || echo unknown`
 1161       AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format])
 1162       if test $am_uid -le $am_max_uid; then
 1163          AC_MSG_RESULT([yes])
 1164       else
 1165          AC_MSG_RESULT([no])
 1166          _am_tools=none
 1167       fi
 1168       AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format])
 1169       if test $am_gid -le $am_max_gid; then
 1170          AC_MSG_RESULT([yes])
 1171       else
 1172         AC_MSG_RESULT([no])
 1173         _am_tools=none
 1174       fi],
 1175 
 1176   [pax],
 1177     [],
 1178 
 1179   [m4_fatal([Unknown tar format])])
 1180 
 1181   AC_MSG_CHECKING([how to create a $1 tar archive])
 1182 
 1183   # Go ahead even if we have the value already cached.  We do so because we
 1184   # need to set the values for the 'am__tar' and 'am__untar' variables.
 1185   _am_tools=${am_cv_prog_tar_$1-$_am_tools}
 1186 
 1187   for _am_tool in $_am_tools; do
 1188     case $_am_tool in
 1189     gnutar)
 1190       for _am_tar in tar gnutar gtar; do
 1191         AM_RUN_LOG([$_am_tar --version]) && break
 1192       done
 1193       am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
 1194       am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
 1195       am__untar="$_am_tar -xf -"
 1196       ;;
 1197     plaintar)
 1198       # Must skip GNU tar: if it does not support --format= it doesn't create
 1199       # ustar tarball either.
 1200       (tar --version) >/dev/null 2>&1 && continue
 1201       am__tar='tar chf - "$$tardir"'
 1202       am__tar_='tar chf - "$tardir"'
 1203       am__untar='tar xf -'
 1204       ;;
 1205     pax)
 1206       am__tar='pax -L -x $1 -w "$$tardir"'
 1207       am__tar_='pax -L -x $1 -w "$tardir"'
 1208       am__untar='pax -r'
 1209       ;;
 1210     cpio)
 1211       am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
 1212       am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
 1213       am__untar='cpio -i -H $1 -d'
 1214       ;;
 1215     none)
 1216       am__tar=false
 1217       am__tar_=false
 1218       am__untar=false
 1219       ;;
 1220     esac
 1221 
 1222     # If the value was cached, stop now.  We just wanted to have am__tar
 1223     # and am__untar set.
 1224     test -n "${am_cv_prog_tar_$1}" && break
 1225 
 1226     # tar/untar a dummy directory, and stop if the command works.
 1227     rm -rf conftest.dir
 1228     mkdir conftest.dir
 1229     echo GrepMe > conftest.dir/file
 1230     AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
 1231     rm -rf conftest.dir
 1232     if test -s conftest.tar; then
 1233       AM_RUN_LOG([$am__untar <conftest.tar])
 1234       AM_RUN_LOG([cat conftest.dir/file])
 1235       grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
 1236     fi
 1237   done
 1238   rm -rf conftest.dir
 1239 
 1240   AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
 1241   AC_MSG_RESULT([$am_cv_prog_tar_$1])])
 1242 
 1243 AC_SUBST([am__tar])
 1244 AC_SUBST([am__untar])
 1245 ]) # _AM_PROG_TAR
 1246 
 1247 m4_include([m4/ac_system_extensions.m4])
 1248 m4_include([m4/acx_check_suncc.m4])
 1249 m4_include([m4/ax_cxx_compile_stdcxx.m4])
 1250 m4_include([m4/ax_prog_cc_for_build.m4])
 1251 m4_include([m4/ax_prog_cxx_for_build.m4])
 1252 m4_include([m4/ax_pthread.m4])
 1253 m4_include([m4/libtool.m4])
 1254 m4_include([m4/ltoptions.m4])
 1255 m4_include([m4/ltsugar.m4])
 1256 m4_include([m4/ltversion.m4])
 1257 m4_include([m4/lt~obsolete.m4])
 1258 m4_include([m4/stl_hash.m4])