zlib/aclocal.m4

   1 # generated automatically by aclocal 1.16.2 -*- Autoconf -*-
   2
   3 # Copyright (C) 1996-2020 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]), [2.69],,
  18 [m4_warning([this file was generated for autoconf 2.69.
  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) 2002-2020 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
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  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], [])
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  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],
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  57 _AM_AUTOCONF_VERSION(m4_defn([AC_AUTOCONF_VERSION]))])
  58
  59 # AM_AUX_DIR_EXPAND                                         -*- Autoconf -*-
  60
  61 # Copyright (C) 2001-2020 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 # AM_CONDITIONAL                                            -*- Autoconf -*-
 112
 113 # Copyright (C) 1997-2020 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 # AM_CONDITIONAL(NAME, SHELL-CONDITION)
 120 # -------------------------------------
 121 # Define a conditional.
 122 AC_DEFUN([AM_CONDITIONAL],
 123 [AC_PREREQ([2.52])dnl
 124  m4_if([$1], [TRUE],  [AC_FATAL([$0: invalid condition: $1])],
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 128 _AM_SUBST_NOTMAKE([$1_TRUE])dnl
 129 _AM_SUBST_NOTMAKE([$1_FALSE])dnl
 130 m4_define([_AM_COND_VALUE_$1], [$2])dnl
 131 if $2; then
 132   $1_TRUE=
 133   $1_FALSE='#'
 134 else
 135   $1_TRUE='#'
 136   $1_FALSE=
 137 fi
 138 AC_CONFIG_COMMANDS_PRE(
 139 [if test -z "${$1_TRUE}" && test -z "${$1_FALSE}"; then
 140   AC_MSG_ERROR([[conditional "$1" was never defined.
 141 Usually this means the macro was only invoked conditionally.]])
 142 fi])])
 143
 144 # Copyright (C) 1999-2020 Free Software Foundation, Inc.
 145 #
 146 # This file is free software; the Free Software Foundation
 147 # gives unlimited permission to copy and/or distribute it,
 148 # with or without modifications, as long as this notice is preserved.
 149
 150
 151 # There are a few dirty hacks below to avoid letting 'AC_PROG_CC' be
 152 # written in clear, in which case automake, when reading aclocal.m4,
 153 # will think it sees a *use*, and therefore will trigger all it's
 154 # C support machinery.  Also note that it means that autoscan, seeing
 155 # CC etc. in the Makefile, will ask for an AC_PROG_CC use...
 156
 157
 158 # _AM_DEPENDENCIES(NAME)
 159 # ----------------------
 160 # See how the compiler implements dependency checking.
 161 # NAME is "CC", "CXX", "OBJC", "OBJCXX", "UPC", or "GJC".
 162 # We try a few techniques and use that to set a single cache variable.
 163 #
 164 # We don't AC_REQUIRE the corresponding AC_PROG_CC since the latter was
 165 # modified to invoke _AM_DEPENDENCIES(CC); we would have a circular
 166 # dependency, and given that the user is not expected to run this macro,
 167 # just rely on AC_PROG_CC.
 168 AC_DEFUN([_AM_DEPENDENCIES],
 169 [AC_REQUIRE([AM_SET_DEPDIR])dnl
 170 AC_REQUIRE([AM_OUTPUT_DEPENDENCY_COMMANDS])dnl
 171 AC_REQUIRE([AM_MAKE_INCLUDE])dnl
 172 AC_REQUIRE([AM_DEP_TRACK])dnl
 173
 174 m4_if([$1], [CC],   [depcc="$CC"   am_compiler_list=],
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 180                     [depcc="$$1"   am_compiler_list=])
 181
 182 AC_CACHE_CHECK([dependency style of $depcc],
 183                [am_cv_$1_dependencies_compiler_type],
 184 [if test -z "$AMDEP_TRUE" && test -f "$am_depcomp"; then
 185   # We make a subdir and do the tests there.  Otherwise we can end up
 186   # making bogus files that we don't know about and never remove.  For
 187   # instance it was reported that on HP-UX the gcc test will end up
 188   # making a dummy file named 'D' -- because '-MD' means "put the output
 189   # in D".
 190   rm -rf conftest.dir
 191   mkdir conftest.dir
 192   # Copy depcomp to subdir because otherwise we won't find it if we're
 193   # using a relative directory.
 194   cp "$am_depcomp" conftest.dir
 195   cd conftest.dir
 196   # We will build objects and dependencies in a subdirectory because
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 199   # side effect of compilation, but ICC will put the dependencies in
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 201   # directory.
 202   mkdir sub
 203
 204   am_cv_$1_dependencies_compiler_type=none
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 214     [case " $depcc " in #(
 215      *\ -arch\ *\ -arch\ *) am__universal=true ;;
 216      esac])
 217
 218   for depmode in $am_compiler_list; do
 219     # Setup a source with many dependencies, because some compilers
 220     # like to wrap large dependency lists on column 80 (with \), and
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 222     #
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 224     # overwrite some of them when testing with obscure command lines.
 225     # This happens at least with the AIX C compiler.
 226     : > sub/conftest.c
 227     for i in 1 2 3 4 5 6; do
 228       echo '#include "conftst'$i'.h"' >> sub/conftest.c
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 238     # versions had trouble with output in subdirs.
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 240     am__minus_obj="-o $am__obj"
 241     case $depmode in
 242     gcc)
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 245       ;;
 246     nosideeffect)
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 248       # only be used when explicitly requested.
 249       if test "x$enable_dependency_tracking" = xyes; then
 250         continue
 251       else
 252         break
 253       fi
 254       ;;
 255     msvc7 | msvc7msys | msvisualcpp | msvcmsys)
 256       # This compiler won't grok '-c -o', but also, the minuso test has
 257       # not run yet.  These depmodes are late enough in the game, and
 258       # so weak that their functioning should not be impacted.
 259       am__obj=conftest.${OBJEXT-o}
 260       am__minus_obj=
 261       ;;
 262     none) break ;;
 263     esac
 264     if depmode=$depmode \
 265        source=sub/conftest.c object=$am__obj \
 266        depfile=sub/conftest.Po tmpdepfile=sub/conftest.TPo \
 267        $SHELL ./depcomp $depcc -c $am__minus_obj sub/conftest.c \
 268          >/dev/null 2>conftest.err &&
 269        grep sub/conftst1.h sub/conftest.Po > /dev/null 2>&1 &&
 270        grep sub/conftst6.h sub/conftest.Po > /dev/null 2>&1 &&
 271        grep $am__obj sub/conftest.Po > /dev/null 2>&1 &&
 272        ${MAKE-make} -s -f confmf > /dev/null 2>&1; then
 273       # icc doesn't choke on unknown options, it will just issue warnings
 274       # or remarks (even with -Werror).  So we grep stderr for any message
 275       # that says an option was ignored or not supported.
 276       # When given -MP, icc 7.0 and 7.1 complain thusly:
 277       #   icc: Command line warning: ignoring option '-M'; no argument required
 278       # The diagnosis changed in icc 8.0:
 279       #   icc: Command line remark: option '-MP' not supported
 280       if (grep 'ignoring option' conftest.err ||
 281           grep 'not supported' conftest.err) >/dev/null 2>&1; then :; else
 282         am_cv_$1_dependencies_compiler_type=$depmode
 283         break
 284       fi
 285     fi
 286   done
 287
 288   cd ..
 289   rm -rf conftest.dir
 290 else
 291   am_cv_$1_dependencies_compiler_type=none
 292 fi
 293 ])
 294 AC_SUBST([$1DEPMODE], [depmode=$am_cv_$1_dependencies_compiler_type])
 295 AM_CONDITIONAL([am__fastdep$1], [
 296   test "x$enable_dependency_tracking" != xno \
 297   && test "$am_cv_$1_dependencies_compiler_type" = gcc3])
 298 ])
 299
 300
 301 # AM_SET_DEPDIR
 302 # -------------
 303 # Choose a directory name for dependency files.
 304 # This macro is AC_REQUIREd in _AM_DEPENDENCIES.
 305 AC_DEFUN([AM_SET_DEPDIR],
 306 [AC_REQUIRE([AM_SET_LEADING_DOT])dnl
 307 AC_SUBST([DEPDIR], ["${am__leading_dot}deps"])dnl
 308 ])
 309
 310
 311 # AM_DEP_TRACK
 312 # ------------
 313 AC_DEFUN([AM_DEP_TRACK],
 314 [AC_ARG_ENABLE([dependency-tracking], [dnl
 315 AS_HELP_STRING(
 316   [--enable-dependency-tracking],
 317   [do not reject slow dependency extractors])
 318 AS_HELP_STRING(
 319   [--disable-dependency-tracking],
 320   [speeds up one-time build])])
 321 if test "x$enable_dependency_tracking" != xno; then
 322   am_depcomp="$ac_aux_dir/depcomp"
 323   AMDEPBACKSLASH='\'
 324   am__nodep='_no'
 325 fi
 326 AM_CONDITIONAL([AMDEP], [test "x$enable_dependency_tracking" != xno])
 327 AC_SUBST([AMDEPBACKSLASH])dnl
 328 _AM_SUBST_NOTMAKE([AMDEPBACKSLASH])dnl
 329 AC_SUBST([am__nodep])dnl
 330 _AM_SUBST_NOTMAKE([am__nodep])dnl
 331 ])
 332
 333 # Generate code to set up dependency tracking.              -*- Autoconf -*-
 334
 335 # Copyright (C) 1999-2020 Free Software Foundation, Inc.
 336 #
 337 # This file is free software; the Free Software Foundation
 338 # gives unlimited permission to copy and/or distribute it,
 339 # with or without modifications, as long as this notice is preserved.
 340
 341 # _AM_OUTPUT_DEPENDENCY_COMMANDS
 342 # ------------------------------
 343 AC_DEFUN([_AM_OUTPUT_DEPENDENCY_COMMANDS],
 344 [{
 345   # Older Autoconf quotes --file arguments for eval, but not when files
 346   # are listed without --file.  Let's play safe and only enable the eval
 347   # if we detect the quoting.
 348   # TODO: see whether this extra hack can be removed once we start
 349   # requiring Autoconf 2.70 or later.
 350   AS_CASE([$CONFIG_FILES],
 351           [*\'*], [eval set x "$CONFIG_FILES"],
 352           [*], [set x $CONFIG_FILES])
 353   shift
 354   # Used to flag and report bootstrapping failures.
 355   am_rc=0
 356   for am_mf
 357   do
 358     # Strip MF so we end up with the name of the file.
 359     am_mf=`AS_ECHO(["$am_mf"]) | sed -e 's/:.*$//'`
 360     # Check whether this is an Automake generated Makefile which includes
 361     # dependency-tracking related rules and includes.
 362     # Grep'ing the whole file directly is not great: AIX grep has a line
 363     # limit of 2048, but all sed's we know have understand at least 4000.
 364     sed -n 's,^am--depfiles:.*,X,p' "$am_mf" | grep X >/dev/null 2>&1 \
 365       || continue
 366     am_dirpart=`AS_DIRNAME(["$am_mf"])`
 367     am_filepart=`AS_BASENAME(["$am_mf"])`
 368     AM_RUN_LOG([cd "$am_dirpart" \
 369       && sed -e '/# am--include-marker/d' "$am_filepart" \
 370         | $MAKE -f - am--depfiles]) || am_rc=$?
 371   done
 372   if test $am_rc -ne 0; then
 373     AC_MSG_FAILURE([Something went wrong bootstrapping makefile fragments
 374     for automatic dependency tracking.  If GNU make was not used, consider
 375     re-running the configure script with MAKE="gmake" (or whatever is
 376     necessary).  You can also try re-running configure with the
 377     '--disable-dependency-tracking' option to at least be able to build
 378     the package (albeit without support for automatic dependency tracking).])
 379   fi
 380   AS_UNSET([am_dirpart])
 381   AS_UNSET([am_filepart])
 382   AS_UNSET([am_mf])
 383   AS_UNSET([am_rc])
 384   rm -f conftest-deps.mk
 385 }
 386 ])# _AM_OUTPUT_DEPENDENCY_COMMANDS
 387
 388
 389 # AM_OUTPUT_DEPENDENCY_COMMANDS
 390 # -----------------------------
 391 # This macro should only be invoked once -- use via AC_REQUIRE.
 392 #
 393 # This code is only required when automatic dependency tracking is enabled.
 394 # This creates each '.Po' and '.Plo' makefile fragment that we'll need in
 395 # order to bootstrap the dependency handling code.
 396 AC_DEFUN([AM_OUTPUT_DEPENDENCY_COMMANDS],
 397 [AC_CONFIG_COMMANDS([depfiles],
 398      [test x"$AMDEP_TRUE" != x"" || _AM_OUTPUT_DEPENDENCY_COMMANDS],
 399      [AMDEP_TRUE="$AMDEP_TRUE" MAKE="${MAKE-make}"])])
 400
 401 # Do all the work for Automake.                             -*- Autoconf -*-
 402
 403 # Copyright (C) 1996-2020 Free Software Foundation, Inc.
 404 #
 405 # This file is free software; the Free Software Foundation
 406 # gives unlimited permission to copy and/or distribute it,
 407 # with or without modifications, as long as this notice is preserved.
 408
 409 # This macro actually does too much.  Some checks are only needed if
 410 # your package does certain things.  But this isn't really a big deal.
 411
 412 dnl Redefine AC_PROG_CC to automatically invoke _AM_PROG_CC_C_O.
 413 m4_define([AC_PROG_CC],
 414 m4_defn([AC_PROG_CC])
 415 [_AM_PROG_CC_C_O
 416 ])
 417
 418 # AM_INIT_AUTOMAKE(PACKAGE, VERSION, [NO-DEFINE])
 419 # AM_INIT_AUTOMAKE([OPTIONS])
 420 # -----------------------------------------------
 421 # The call with PACKAGE and VERSION arguments is the old style
 422 # call (pre autoconf-2.50), which is being phased out.  PACKAGE
 423 # and VERSION should now be passed to AC_INIT and removed from
 424 # the call to AM_INIT_AUTOMAKE.
 425 # We support both call styles for the transition.  After
 426 # the next Automake release, Autoconf can make the AC_INIT
 427 # arguments mandatory, and then we can depend on a new Autoconf
 428 # release and drop the old call support.
 429 AC_DEFUN([AM_INIT_AUTOMAKE],
 430 [AC_PREREQ([2.65])dnl
 431 dnl Autoconf wants to disallow AM_ names.  We explicitly allow
 432 dnl the ones we care about.
 433 m4_pattern_allow([^AM_[A-Z]+FLAGS$])dnl
 434 AC_REQUIRE([AM_SET_CURRENT_AUTOMAKE_VERSION])dnl
 435 AC_REQUIRE([AC_PROG_INSTALL])dnl
 436 if test "`cd $srcdir && pwd`" != "`pwd`"; then
 437   # Use -I$(srcdir) only when $(srcdir) != ., so that make's output
 438   # is not polluted with repeated "-I."
 439   AC_SUBST([am__isrc], [' -I$(srcdir)'])_AM_SUBST_NOTMAKE([am__isrc])dnl
 440   # test to see if srcdir already configured
 441   if test -f $srcdir/config.status; then
 442     AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
 443   fi
 444 fi
 445
 446 # test whether we have cygpath
 447 if test -z "$CYGPATH_W"; then
 448   if (cygpath --version) >/dev/null 2>/dev/null; then
 449     CYGPATH_W='cygpath -w'
 450   else
 451     CYGPATH_W=echo
 452   fi
 453 fi
 454 AC_SUBST([CYGPATH_W])
 455
 456 # Define the identity of the package.
 457 dnl Distinguish between old-style and new-style calls.
 458 m4_ifval([$2],
 459 [AC_DIAGNOSE([obsolete],
 460              [$0: two- and three-arguments forms are deprecated.])
 461 m4_ifval([$3], [_AM_SET_OPTION([no-define])])dnl
 462  AC_SUBST([PACKAGE], [$1])dnl
 463  AC_SUBST([VERSION], [$2])],
 464 [_AM_SET_OPTIONS([$1])dnl
 465 dnl Diagnose old-style AC_INIT with new-style AM_AUTOMAKE_INIT.
 466 m4_if(
 467   m4_ifdef([AC_PACKAGE_NAME], [ok]):m4_ifdef([AC_PACKAGE_VERSION], [ok]),
 468   [ok:ok],,
 469   [m4_fatal([AC_INIT should be called with package and version arguments])])dnl
 470  AC_SUBST([PACKAGE], ['AC_PACKAGE_TARNAME'])dnl
 471  AC_SUBST([VERSION], ['AC_PACKAGE_VERSION'])])dnl
 472
 473 _AM_IF_OPTION([no-define],,
 474 [AC_DEFINE_UNQUOTED([PACKAGE], ["$PACKAGE"], [Name of package])
 475  AC_DEFINE_UNQUOTED([VERSION], ["$VERSION"], [Version number of package])])dnl
 476
 477 # Some tools Automake needs.
 478 AC_REQUIRE([AM_SANITY_CHECK])dnl
 479 AC_REQUIRE([AC_ARG_PROGRAM])dnl
 480 AM_MISSING_PROG([ACLOCAL], [aclocal-${am__api_version}])
 481 AM_MISSING_PROG([AUTOCONF], [autoconf])
 482 AM_MISSING_PROG([AUTOMAKE], [automake-${am__api_version}])
 483 AM_MISSING_PROG([AUTOHEADER], [autoheader])
 484 AM_MISSING_PROG([MAKEINFO], [makeinfo])
 485 AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
 486 AC_REQUIRE([AM_PROG_INSTALL_STRIP])dnl
 487 AC_REQUIRE([AC_PROG_MKDIR_P])dnl
 488 # For better backward compatibility.  To be removed once Automake 1.9.x
 489 # dies out for good.  For more background, see:
 490 # <https://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
 491 # <https://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
 492 AC_SUBST([mkdir_p], ['$(MKDIR_P)'])
 493 # We need awk for the "check" target (and possibly the TAP driver).  The
 494 # system "awk" is bad on some platforms.
 495 AC_REQUIRE([AC_PROG_AWK])dnl
 496 AC_REQUIRE([AC_PROG_MAKE_SET])dnl
 497 AC_REQUIRE([AM_SET_LEADING_DOT])dnl
 498 _AM_IF_OPTION([tar-ustar], [_AM_PROG_TAR([ustar])],
 499               [_AM_IF_OPTION([tar-pax], [_AM_PROG_TAR([pax])],
 500                              [_AM_PROG_TAR([v7])])])
 501 _AM_IF_OPTION([no-dependencies],,
 502 [AC_PROVIDE_IFELSE([AC_PROG_CC],
 503                   [_AM_DEPENDENCIES([CC])],
 504                   [m4_define([AC_PROG_CC],
 505                              m4_defn([AC_PROG_CC])[_AM_DEPENDENCIES([CC])])])dnl
 506 AC_PROVIDE_IFELSE([AC_PROG_CXX],
 507                   [_AM_DEPENDENCIES([CXX])],
 508                   [m4_define([AC_PROG_CXX],
 509                              m4_defn([AC_PROG_CXX])[_AM_DEPENDENCIES([CXX])])])dnl
 510 AC_PROVIDE_IFELSE([AC_PROG_OBJC],
 511                   [_AM_DEPENDENCIES([OBJC])],
 512                   [m4_define([AC_PROG_OBJC],
 513                              m4_defn([AC_PROG_OBJC])[_AM_DEPENDENCIES([OBJC])])])dnl
 514 AC_PROVIDE_IFELSE([AC_PROG_OBJCXX],
 515                   [_AM_DEPENDENCIES([OBJCXX])],
 516                   [m4_define([AC_PROG_OBJCXX],
 517                              m4_defn([AC_PROG_OBJCXX])[_AM_DEPENDENCIES([OBJCXX])])])dnl
 518 ])
 519 AC_REQUIRE([AM_SILENT_RULES])dnl
 520 dnl The testsuite driver may need to know about EXEEXT, so add the
 521 dnl 'am__EXEEXT' conditional if _AM_COMPILER_EXEEXT was seen.  This
 522 dnl macro is hooked onto _AC_COMPILER_EXEEXT early, see below.
 523 AC_CONFIG_COMMANDS_PRE(dnl
 524 [m4_provide_if([_AM_COMPILER_EXEEXT],
 525   [AM_CONDITIONAL([am__EXEEXT], [test -n "$EXEEXT"])])])dnl
 526
 527 # POSIX will say in a future version that running "rm -f" with no argument
 528 # is OK; and we want to be able to make that assumption in our Makefile
 529 # recipes.  So use an aggressive probe to check that the usage we want is
 530 # actually supported "in the wild" to an acceptable degree.
 531 # See automake bug#10828.
 532 # To make any issue more visible, cause the running configure to be aborted
 533 # by default if the 'rm' program in use doesn't match our expectations; the
 534 # user can still override this though.
 535 if rm -f && rm -fr && rm -rf; then : OK; else
 536   cat >&2 <<'END'
 537 Oops!
 538
 539 Your 'rm' program seems unable to run without file operands specified
 540 on the command line, even when the '-f' option is present.  This is contrary
 541 to the behaviour of most rm programs out there, and not conforming with
 542 the upcoming POSIX standard: <http://austingroupbugs.net/view.php?id=542>
 543
 544 Please tell bug-automake@gnu.org about your system, including the value
 545 of your $PATH and any error possibly output before this message.  This
 546 can help us improve future automake versions.
 547
 548 END
 549   if test x"$ACCEPT_INFERIOR_RM_PROGRAM" = x"yes"; then
 550     echo 'Configuration will proceed anyway, since you have set the' >&2
 551     echo 'ACCEPT_INFERIOR_RM_PROGRAM variable to "yes"' >&2
 552     echo >&2
 553   else
 554     cat >&2 <<'END'
 555 Aborting the configuration process, to ensure you take notice of the issue.
 556
 557 You can download and install GNU coreutils to get an 'rm' implementation
 558 that behaves properly: <https://www.gnu.org/software/coreutils/>.
 559
 560 If you want to complete the configuration process using your problematic
 561 'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM
 562 to "yes", and re-run configure.
 563
 564 END
 565     AC_MSG_ERROR([Your 'rm' program is bad, sorry.])
 566   fi
 567 fi
 568 dnl The trailing newline in this macro's definition is deliberate, for
 569 dnl backward compatibility and to allow trailing 'dnl'-style comments
 570 dnl after the AM_INIT_AUTOMAKE invocation. See automake bug#16841.
 571 ])
 572
 573 dnl Hook into '_AC_COMPILER_EXEEXT' early to learn its expansion.  Do not
 574 dnl add the conditional right here, as _AC_COMPILER_EXEEXT may be further
 575 dnl mangled by Autoconf and run in a shell conditional statement.
 576 m4_define([_AC_COMPILER_EXEEXT],
 577 m4_defn([_AC_COMPILER_EXEEXT])[m4_provide([_AM_COMPILER_EXEEXT])])
 578
 579 # When config.status generates a header, we must update the stamp-h file.
 580 # This file resides in the same directory as the config header
 581 # that is generated.  The stamp files are numbered to have different names.
 582
 583 # Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the
 584 # loop where config.status creates the headers, so we can generate
 585 # our stamp files there.
 586 AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK],
 587 [# Compute $1's index in $config_headers.
 588 _am_arg=$1
 589 _am_stamp_count=1
 590 for _am_header in $config_headers :; do
 591   case $_am_header in
 592     $_am_arg | $_am_arg:* )
 593       break ;;
 594     * )
 595       _am_stamp_count=`expr $_am_stamp_count + 1` ;;
 596   esac
 597 done
 598 echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
 599
 600 # Copyright (C) 2001-2020 Free Software Foundation, Inc.
 601 #
 602 # This file is free software; the Free Software Foundation
 603 # gives unlimited permission to copy and/or distribute it,
 604 # with or without modifications, as long as this notice is preserved.
 605
 606 # AM_PROG_INSTALL_SH
 607 # ------------------
 608 # Define $install_sh.
 609 AC_DEFUN([AM_PROG_INSTALL_SH],
 610 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
 611 if test x"${install_sh+set}" != xset; then
 612   case $am_aux_dir in
 613   *\ * | *\     *)
 614     install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
 615   *)
 616     install_sh="\${SHELL} $am_aux_dir/install-sh"
 617   esac
 618 fi
 619 AC_SUBST([install_sh])])
 620
 621 # Add --enable-maintainer-mode option to configure.         -*- Autoconf -*-
 622 # From Jim Meyering
 623
 624 # Copyright (C) 1996-2020 Free Software Foundation, Inc.
 625 #
 626 # This file is free software; the Free Software Foundation
 627 # gives unlimited permission to copy and/or distribute it,
 628 # with or without modifications, as long as this notice is preserved.
 629
 630 # AM_MAINTAINER_MODE([DEFAULT-MODE])
 631 # ----------------------------------
 632 # Control maintainer-specific portions of Makefiles.
 633 # Default is to disable them, unless 'enable' is passed literally.
 634 # For symmetry, 'disable' may be passed as well.  Anyway, the user
 635 # can override the default with the --enable/--disable switch.
 636 AC_DEFUN([AM_MAINTAINER_MODE],
 637 [m4_case(m4_default([$1], [disable]),
 638        [enable], [m4_define([am_maintainer_other], [disable])],
 639        [disable], [m4_define([am_maintainer_other], [enable])],
 640        [m4_define([am_maintainer_other], [enable])
 641         m4_warn([syntax], [unexpected argument to AM@&t@_MAINTAINER_MODE: $1])])
 642 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
 643   dnl maintainer-mode's default is 'disable' unless 'enable' is passed
 644   AC_ARG_ENABLE([maintainer-mode],
 645     [AS_HELP_STRING([--]am_maintainer_other[-maintainer-mode],
 646       am_maintainer_other[ make rules and dependencies not useful
 647       (and sometimes confusing) to the casual installer])],
 648     [USE_MAINTAINER_MODE=$enableval],
 649     [USE_MAINTAINER_MODE=]m4_if(am_maintainer_other, [enable], [no], [yes]))
 650   AC_MSG_RESULT([$USE_MAINTAINER_MODE])
 651   AM_CONDITIONAL([MAINTAINER_MODE], [test $USE_MAINTAINER_MODE = yes])
 652   MAINT=$MAINTAINER_MODE_TRUE
 653   AC_SUBST([MAINT])dnl
 654 ]
 655 )
 656
 657 # Check to see how 'make' treats includes.                  -*- Autoconf -*-
 658
 659 # Copyright (C) 2001-2020 Free Software Foundation, Inc.
 660 #
 661 # This file is free software; the Free Software Foundation
 662 # gives unlimited permission to copy and/or distribute it,
 663 # with or without modifications, as long as this notice is preserved.
 664
 665 # AM_MAKE_INCLUDE()
 666 # -----------------
 667 # Check whether make has an 'include' directive that can support all
 668 # the idioms we need for our automatic dependency tracking code.
 669 AC_DEFUN([AM_MAKE_INCLUDE],
 670 [AC_MSG_CHECKING([whether ${MAKE-make} supports the include directive])
 671 cat > confinc.mk << 'END'
 672 am__doit:
 673         @echo this is the am__doit target >confinc.out
 674 .PHONY: am__doit
 675 END
 676 am__include="#"
 677 am__quote=
 678 # BSD make does it like this.
 679 echo '.include "confinc.mk" # ignored' > confmf.BSD
 680 # Other make implementations (GNU, Solaris 10, AIX) do it like this.
 681 echo 'include confinc.mk # ignored' > confmf.GNU
 682 _am_result=no
 683 for s in GNU BSD; do
 684   AM_RUN_LOG([${MAKE-make} -f confmf.$s && cat confinc.out])
 685   AS_CASE([$?:`cat confinc.out 2>/dev/null`],
 686       ['0:this is the am__doit target'],
 687       [AS_CASE([$s],
 688           [BSD], [am__include='.include' am__quote='"'],
 689           [am__include='include' am__quote=''])])
 690   if test "$am__include" != "#"; then
 691     _am_result="yes ($s style)"
 692     break
 693   fi
 694 done
 695 rm -f confinc.* confmf.*
 696 AC_MSG_RESULT([${_am_result}])
 697 AC_SUBST([am__include])])
 698 AC_SUBST([am__quote])])
 699
 700 # Fake the existence of programs that GNU maintainers use.  -*- Autoconf -*-
 701
 702 # Copyright (C) 1997-2020 Free Software Foundation, Inc.
 703 #
 704 # This file is free software; the Free Software Foundation
 705 # gives unlimited permission to copy and/or distribute it,
 706 # with or without modifications, as long as this notice is preserved.
 707
 708 # AM_MISSING_PROG(NAME, PROGRAM)
 709 # ------------------------------
 710 AC_DEFUN([AM_MISSING_PROG],
 711 [AC_REQUIRE([AM_MISSING_HAS_RUN])
 712 $1=${$1-"${am_missing_run}$2"}
 713 AC_SUBST($1)])
 714
 715 # AM_MISSING_HAS_RUN
 716 # ------------------
 717 # Define MISSING if not defined so far and test if it is modern enough.
 718 # If it is, set am_missing_run to use it, otherwise, to nothing.
 719 AC_DEFUN([AM_MISSING_HAS_RUN],
 720 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
 721 AC_REQUIRE_AUX_FILE([missing])dnl
 722 if test x"${MISSING+set}" != xset; then
 723   case $am_aux_dir in
 724   *\ * | *\     *)
 725     MISSING="\${SHELL} \"$am_aux_dir/missing\"" ;;
 726   *)
 727     MISSING="\${SHELL} $am_aux_dir/missing" ;;
 728   esac
 729 fi
 730 # Use eval to expand $SHELL
 731 if eval "$MISSING --is-lightweight"; then
 732   am_missing_run="$MISSING "
 733 else
 734   am_missing_run=
 735   AC_MSG_WARN(['missing' script is too old or missing])
 736 fi
 737 ])
 738
 739 # Helper functions for option handling.                     -*- Autoconf -*-
 740
 741 # Copyright (C) 2001-2020 Free Software Foundation, Inc.
 742 #
 743 # This file is free software; the Free Software Foundation
 744 # gives unlimited permission to copy and/or distribute it,
 745 # with or without modifications, as long as this notice is preserved.
 746
 747 # _AM_MANGLE_OPTION(NAME)
 748 # -----------------------
 749 AC_DEFUN([_AM_MANGLE_OPTION],
 750 [[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
 751
 752 # _AM_SET_OPTION(NAME)
 753 # --------------------
 754 # Set option NAME.  Presently that only means defining a flag for this option.
 755 AC_DEFUN([_AM_SET_OPTION],
 756 [m4_define(_AM_MANGLE_OPTION([$1]), [1])])
 757
 758 # _AM_SET_OPTIONS(OPTIONS)
 759 # ------------------------
 760 # OPTIONS is a space-separated list of Automake options.
 761 AC_DEFUN([_AM_SET_OPTIONS],
 762 [m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
 763
 764 # _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
 765 # -------------------------------------------
 766 # Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
 767 AC_DEFUN([_AM_IF_OPTION],
 768 [m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
 769
 770 # Copyright (C) 1999-2020 Free Software Foundation, Inc.
 771 #
 772 # This file is free software; the Free Software Foundation
 773 # gives unlimited permission to copy and/or distribute it,
 774 # with or without modifications, as long as this notice is preserved.
 775
 776 # _AM_PROG_CC_C_O
 777 # ---------------
 778 # Like AC_PROG_CC_C_O, but changed for automake.  We rewrite AC_PROG_CC
 779 # to automatically call this.
 780 AC_DEFUN([_AM_PROG_CC_C_O],
 781 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
 782 AC_REQUIRE_AUX_FILE([compile])dnl
 783 AC_LANG_PUSH([C])dnl
 784 AC_CACHE_CHECK(
 785   [whether $CC understands -c and -o together],
 786   [am_cv_prog_cc_c_o],
 787   [AC_LANG_CONFTEST([AC_LANG_PROGRAM([])])
 788   # Make sure it works both with $CC and with simple cc.
 789   # Following AC_PROG_CC_C_O, we do the test twice because some
 790   # compilers refuse to overwrite an existing .o file with -o,
 791   # though they will create one.
 792   am_cv_prog_cc_c_o=yes
 793   for am_i in 1 2; do
 794     if AM_RUN_LOG([$CC -c conftest.$ac_ext -o conftest2.$ac_objext]) \
 795          && test -f conftest2.$ac_objext; then
 796       : OK
 797     else
 798       am_cv_prog_cc_c_o=no
 799       break
 800     fi
 801   done
 802   rm -f core conftest*
 803   unset am_i])
 804 if test "$am_cv_prog_cc_c_o" != yes; then
 805    # Losing compiler, so override with the script.
 806    # FIXME: It is wrong to rewrite CC.
 807    # But if we don't then we get into trouble of one sort or another.
 808    # A longer-term fix would be to have automake use am__CC in this case,
 809    # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
 810    CC="$am_aux_dir/compile $CC"
 811 fi
 812 AC_LANG_POP([C])])
 813
 814 # For backward compatibility.
 815 AC_DEFUN_ONCE([AM_PROG_CC_C_O], [AC_REQUIRE([AC_PROG_CC])])
 816
 817 # Copyright (C) 2001-2020 Free Software Foundation, Inc.
 818 #
 819 # This file is free software; the Free Software Foundation
 820 # gives unlimited permission to copy and/or distribute it,
 821 # with or without modifications, as long as this notice is preserved.
 822
 823 # AM_RUN_LOG(COMMAND)
 824 # -------------------
 825 # Run COMMAND, save the exit status in ac_status, and log it.
 826 # (This has been adapted from Autoconf's _AC_RUN_LOG macro.)
 827 AC_DEFUN([AM_RUN_LOG],
 828 [{ echo "$as_me:$LINENO: $1" >&AS_MESSAGE_LOG_FD
 829    ($1) >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD
 830    ac_status=$?
 831    echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
 832    (exit $ac_status); }])
 833
 834 # Check to make sure that the build environment is sane.    -*- Autoconf -*-
 835
 836 # Copyright (C) 1996-2020 Free Software Foundation, Inc.
 837 #
 838 # This file is free software; the Free Software Foundation
 839 # gives unlimited permission to copy and/or distribute it,
 840 # with or without modifications, as long as this notice is preserved.
 841
 842 # AM_SANITY_CHECK
 843 # ---------------
 844 AC_DEFUN([AM_SANITY_CHECK],
 845 [AC_MSG_CHECKING([whether build environment is sane])
 846 # Reject unsafe characters in $srcdir or the absolute working directory
 847 # name.  Accept space and tab only in the latter.
 848 am_lf='
 849 '
 850 case `pwd` in
 851   *[[\\\"\#\$\&\'\`$am_lf]]*)
 852     AC_MSG_ERROR([unsafe absolute working directory name]);;
 853 esac
 854 case $srcdir in
 855   *[[\\\"\#\$\&\'\`$am_lf\ \    ]]*)
 856     AC_MSG_ERROR([unsafe srcdir value: '$srcdir']);;
 857 esac
 858
 859 # Do 'set' in a subshell so we don't clobber the current shell's
 860 # arguments.  Must try -L first in case configure is actually a
 861 # symlink; some systems play weird games with the mod time of symlinks
 862 # (eg FreeBSD returns the mod time of the symlink's containing
 863 # directory).
 864 if (
 865    am_has_slept=no
 866    for am_try in 1 2; do
 867      echo "timestamp, slept: $am_has_slept" > conftest.file
 868      set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
 869      if test "$[*]" = "X"; then
 870         # -L didn't work.
 871         set X `ls -t "$srcdir/configure" conftest.file`
 872      fi
 873      if test "$[*]" != "X $srcdir/configure conftest.file" \
 874         && test "$[*]" != "X conftest.file $srcdir/configure"; then
 875
 876         # If neither matched, then we have a broken ls.  This can happen
 877         # if, for instance, CONFIG_SHELL is bash and it inherits a
 878         # broken ls alias from the environment.  This has actually
 879         # happened.  Such a system could not be considered "sane".
 880         AC_MSG_ERROR([ls -t appears to fail.  Make sure there is not a broken
 881   alias in your environment])
 882      fi
 883      if test "$[2]" = conftest.file || test $am_try -eq 2; then
 884        break
 885      fi
 886      # Just in case.
 887      sleep 1
 888      am_has_slept=yes
 889    done
 890    test "$[2]" = conftest.file
 891    )
 892 then
 893    # Ok.
 894    :
 895 else
 896    AC_MSG_ERROR([newly created file is older than distributed files!
 897 Check your system clock])
 898 fi
 899 AC_MSG_RESULT([yes])
 900 # If we didn't sleep, we still need to ensure time stamps of config.status and
 901 # generated files are strictly newer.
 902 am_sleep_pid=
 903 if grep 'slept: no' conftest.file >/dev/null 2>&1; then
 904   ( sleep 1 ) &
 905   am_sleep_pid=$!
 906 fi
 907 AC_CONFIG_COMMANDS_PRE(
 908   [AC_MSG_CHECKING([that generated files are newer than configure])
 909    if test -n "$am_sleep_pid"; then
 910      # Hide warnings about reused PIDs.
 911      wait $am_sleep_pid 2>/dev/null
 912    fi
 913    AC_MSG_RESULT([done])])
 914 rm -f conftest.file
 915 ])
 916
 917 # Copyright (C) 2009-2020 Free Software Foundation, Inc.
 918 #
 919 # This file is free software; the Free Software Foundation
 920 # gives unlimited permission to copy and/or distribute it,
 921 # with or without modifications, as long as this notice is preserved.
 922
 923 # AM_SILENT_RULES([DEFAULT])
 924 # --------------------------
 925 # Enable less verbose build rules; with the default set to DEFAULT
 926 # ("yes" being less verbose, "no" or empty being verbose).
 927 AC_DEFUN([AM_SILENT_RULES],
 928 [AC_ARG_ENABLE([silent-rules], [dnl
 929 AS_HELP_STRING(
 930   [--enable-silent-rules],
 931   [less verbose build output (undo: "make V=1")])
 932 AS_HELP_STRING(
 933   [--disable-silent-rules],
 934   [verbose build output (undo: "make V=0")])dnl
 935 ])
 936 case $enable_silent_rules in @%:@ (((
 937   yes) AM_DEFAULT_VERBOSITY=0;;
 938    no) AM_DEFAULT_VERBOSITY=1;;
 939     *) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);;
 940 esac
 941 dnl
 942 dnl A few 'make' implementations (e.g., NonStop OS and NextStep)
 943 dnl do not support nested variable expansions.
 944 dnl See automake bug#9928 and bug#10237.
 945 am_make=${MAKE-make}
 946 AC_CACHE_CHECK([whether $am_make supports nested variables],
 947    [am_cv_make_support_nested_variables],
 948    [if AS_ECHO([['TRUE=$(BAR$(V))
 949 BAR0=false
 950 BAR1=true
 951 V=1
 952 am__doit:
 953         @$(TRUE)
 954 .PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then
 955   am_cv_make_support_nested_variables=yes
 956 else
 957   am_cv_make_support_nested_variables=no
 958 fi])
 959 if test $am_cv_make_support_nested_variables = yes; then
 960   dnl Using '$V' instead of '$(V)' breaks IRIX make.
 961   AM_V='$(V)'
 962   AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
 963 else
 964   AM_V=$AM_DEFAULT_VERBOSITY
 965   AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
 966 fi
 967 AC_SUBST([AM_V])dnl
 968 AM_SUBST_NOTMAKE([AM_V])dnl
 969 AC_SUBST([AM_DEFAULT_V])dnl
 970 AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl
 971 AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
 972 AM_BACKSLASH='\'
 973 AC_SUBST([AM_BACKSLASH])dnl
 974 _AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
 975 ])
 976
 977 # Copyright (C) 2001-2020 Free Software Foundation, Inc.
 978 #
 979 # This file is free software; the Free Software Foundation
 980 # gives unlimited permission to copy and/or distribute it,
 981 # with or without modifications, as long as this notice is preserved.
 982
 983 # AM_PROG_INSTALL_STRIP
 984 # ---------------------
 985 # One issue with vendor 'install' (even GNU) is that you can't
 986 # specify the program used to strip binaries.  This is especially
 987 # annoying in cross-compiling environments, where the build's strip
 988 # is unlikely to handle the host's binaries.
 989 # Fortunately install-sh will honor a STRIPPROG variable, so we
 990 # always use install-sh in "make install-strip", and initialize
 991 # STRIPPROG with the value of the STRIP variable (set by the user).
 992 AC_DEFUN([AM_PROG_INSTALL_STRIP],
 993 [AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
 994 # Installed binaries are usually stripped using 'strip' when the user
 995 # run "make install-strip".  However 'strip' might not be the right
 996 # tool to use in cross-compilation environments, therefore Automake
 997 # will honor the 'STRIP' environment variable to overrule this program.
 998 dnl Don't test for $cross_compiling = yes, because it might be 'maybe'.
 999 if test "$cross_compiling" != no; then
1000   AC_CHECK_TOOL([STRIP], [strip], :)
1001 fi
1002 INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
1003 AC_SUBST([INSTALL_STRIP_PROGRAM])])
1004
1005 # Copyright (C) 2006-2020 Free Software Foundation, Inc.
1006 #
1007 # This file is free software; the Free Software Foundation
1008 # gives unlimited permission to copy and/or distribute it,
1009 # with or without modifications, as long as this notice is preserved.
1010
1011 # _AM_SUBST_NOTMAKE(VARIABLE)
1012 # ---------------------------
1013 # Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
1014 # This macro is traced by Automake.
1015 AC_DEFUN([_AM_SUBST_NOTMAKE])
1016
1017 # AM_SUBST_NOTMAKE(VARIABLE)
1018 # --------------------------
1019 # Public sister of _AM_SUBST_NOTMAKE.
1020 AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
1021
1022 # Check how to create a tarball.                            -*- Autoconf -*-
1023
1024 # Copyright (C) 2004-2020 Free Software Foundation, Inc.
1025 #
1026 # This file is free software; the Free Software Foundation
1027 # gives unlimited permission to copy and/or distribute it,
1028 # with or without modifications, as long as this notice is preserved.
1029
1030 # _AM_PROG_TAR(FORMAT)
1031 # --------------------
1032 # Check how to create a tarball in format FORMAT.
1033 # FORMAT should be one of 'v7', 'ustar', or 'pax'.
1034 #
1035 # Substitute a variable $(am__tar) that is a command
1036 # writing to stdout a FORMAT-tarball containing the directory
1037 # $tardir.
1038 #     tardir=directory && $(am__tar) > result.tar
1039 #
1040 # Substitute a variable $(am__untar) that extract such
1041 # a tarball read from stdin.
1042 #     $(am__untar) < result.tar
1043 #
1044 AC_DEFUN([_AM_PROG_TAR],
1045 [# Always define AMTAR for backward compatibility.  Yes, it's still used
1046 # in the wild :-(  We should find a proper way to deprecate it ...
1047 AC_SUBST([AMTAR], ['$${TAR-tar}'])
1048
1049 # We'll loop over all known methods to create a tar archive until one works.
1050 _am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
1051
1052 m4_if([$1], [v7],
1053   [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],
1054
1055   [m4_case([$1],
1056     [ustar],
1057      [# The POSIX 1988 'ustar' format is defined with fixed-size fields.
1058       # There is notably a 21 bits limit for the UID and the GID.  In fact,
1059       # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343
1060       # and bug#13588).
1061       am_max_uid=2097151 # 2^21 - 1
1062       am_max_gid=$am_max_uid
1063       # The $UID and $GID variables are not portable, so we need to resort
1064       # to the POSIX-mandated id(1) utility.  Errors in the 'id' calls
1065       # below are definitely unexpected, so allow the users to see them
1066       # (that is, avoid stderr redirection).
1067       am_uid=`id -u || echo unknown`
1068       am_gid=`id -g || echo unknown`
1069       AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format])
1070       if test $am_uid -le $am_max_uid; then
1071          AC_MSG_RESULT([yes])
1072       else
1073          AC_MSG_RESULT([no])
1074          _am_tools=none
1075       fi
1076       AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format])
1077       if test $am_gid -le $am_max_gid; then
1078          AC_MSG_RESULT([yes])
1079       else
1080         AC_MSG_RESULT([no])
1081         _am_tools=none
1082       fi],
1083
1084   [pax],
1085     [],
1086
1087   [m4_fatal([Unknown tar format])])
1088
1089   AC_MSG_CHECKING([how to create a $1 tar archive])
1090
1091   # Go ahead even if we have the value already cached.  We do so because we
1092   # need to set the values for the 'am__tar' and 'am__untar' variables.
1093   _am_tools=${am_cv_prog_tar_$1-$_am_tools}
1094
1095   for _am_tool in $_am_tools; do
1096     case $_am_tool in
1097     gnutar)
1098       for _am_tar in tar gnutar gtar; do
1099         AM_RUN_LOG([$_am_tar --version]) && break
1100       done
1101       am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
1102       am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
1103       am__untar="$_am_tar -xf -"
1104       ;;
1105     plaintar)
1106       # Must skip GNU tar: if it does not support --format= it doesn't create
1107       # ustar tarball either.
1108       (tar --version) >/dev/null 2>&1 && continue
1109       am__tar='tar chf - "$$tardir"'
1110       am__tar_='tar chf - "$tardir"'
1111       am__untar='tar xf -'
1112       ;;
1113     pax)
1114       am__tar='pax -L -x $1 -w "$$tardir"'
1115       am__tar_='pax -L -x $1 -w "$tardir"'
1116       am__untar='pax -r'
1117       ;;
1118     cpio)
1119       am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
1120       am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
1121       am__untar='cpio -i -H $1 -d'
1122       ;;
1123     none)
1124       am__tar=false
1125       am__tar_=false
1126       am__untar=false
1127       ;;
1128     esac
1129
1130     # If the value was cached, stop now.  We just wanted to have am__tar
1131     # and am__untar set.
1132     test -n "${am_cv_prog_tar_$1}" && break
1133
1134     # tar/untar a dummy directory, and stop if the command works.
1135     rm -rf conftest.dir
1136     mkdir conftest.dir
1137     echo GrepMe > conftest.dir/file
1138     AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
1139     rm -rf conftest.dir
1140     if test -s conftest.tar; then
1141       AM_RUN_LOG([$am__untar <conftest.tar])
1142       AM_RUN_LOG([cat conftest.dir/file])
1143       grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
1144     fi
1145   done
1146   rm -rf conftest.dir
1147
1148   AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
1149   AC_MSG_RESULT([$am_cv_prog_tar_$1])])
1150
1151 AC_SUBST([am__tar])
1152 AC_SUBST([am__untar])
1153 ]) # _AM_PROG_TAR
1154
1155 m4_include([../config/depstand.m4])
1156 m4_include([../config/lead-dot.m4])
1157 m4_include([../config/multi.m4])
1158 m4_include([../config/override.m4])
1159 m4_include([../ltoptions.m4])
1160 m4_include([../ltsugar.m4])
1161 m4_include([../ltversion.m4])
1162 m4_include([../lt~obsolete.m4])
1163 m4_include([acinclude.m4])