readline/aclocal.m4

   1 # generated automatically by aclocal 1.15.1 -*- Autoconf -*-
   2
   3 # Copyright (C) 1996-2017 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) 2002-2017 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='1.15'
  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], [1.15.1], [],
  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([1.15.1])dnl
  55 m4_ifndef([AC_AUTOCONF_VERSION],
  56   [m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl
  57 _AM_AUTOCONF_VERSION(m4_defn([AC_AUTOCONF_VERSION]))])
  58
  59 # AM_AUX_DIR_EXPAND                                         -*- Autoconf -*-
  60
  61 # Copyright (C) 2001-2017 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) 1997-2017 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])],
 125        [$1], [FALSE], [AC_FATAL([$0: invalid condition: $1])])dnl
 126 AC_SUBST([$1_TRUE])dnl
 127 AC_SUBST([$1_FALSE])dnl
 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 "$1" was never defined.
 141 Usually this means the macro was only invoked conditionally.]])
 142 fi])])
 143
 144 # Do all the work for Automake.                             -*- Autoconf -*-
 145
 146 # Copyright (C) 1996-2017 Free Software Foundation, Inc.
 147 #
 148 # This file is free software; the Free Software Foundation
 149 # gives unlimited permission to copy and/or distribute it,
 150 # with or without modifications, as long as this notice is preserved.
 151
 152 # This macro actually does too much.  Some checks are only needed if
 153 # your package does certain things.  But this isn't really a big deal.
 154
 155 dnl Redefine AC_PROG_CC to automatically invoke _AM_PROG_CC_C_O.
 156 m4_define([AC_PROG_CC],
 157 m4_defn([AC_PROG_CC])
 158 [_AM_PROG_CC_C_O
 159 ])
 160
 161 # AM_INIT_AUTOMAKE(PACKAGE, VERSION, [NO-DEFINE])
 162 # AM_INIT_AUTOMAKE([OPTIONS])
 163 # -----------------------------------------------
 164 # The call with PACKAGE and VERSION arguments is the old style
 165 # call (pre autoconf-2.50), which is being phased out.  PACKAGE
 166 # and VERSION should now be passed to AC_INIT and removed from
 167 # the call to AM_INIT_AUTOMAKE.
 168 # We support both call styles for the transition.  After
 169 # the next Automake release, Autoconf can make the AC_INIT
 170 # arguments mandatory, and then we can depend on a new Autoconf
 171 # release and drop the old call support.
 172 AC_DEFUN([AM_INIT_AUTOMAKE],
 173 [AC_PREREQ([2.65])dnl
 174 dnl Autoconf wants to disallow AM_ names.  We explicitly allow
 175 dnl the ones we care about.
 176 m4_pattern_allow([^AM_[A-Z]+FLAGS$])dnl
 177 AC_REQUIRE([AM_SET_CURRENT_AUTOMAKE_VERSION])dnl
 178 AC_REQUIRE([AC_PROG_INSTALL])dnl
 179 if test "`cd $srcdir && pwd`" != "`pwd`"; then
 180   # Use -I$(srcdir) only when $(srcdir) != ., so that make's output
 181   # is not polluted with repeated "-I."
 182   AC_SUBST([am__isrc], [' -I$(srcdir)'])_AM_SUBST_NOTMAKE([am__isrc])dnl
 183   # test to see if srcdir already configured
 184   if test -f $srcdir/config.status; then
 185     AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
 186   fi
 187 fi
 188
 189 # test whether we have cygpath
 190 if test -z "$CYGPATH_W"; then
 191   if (cygpath --version) >/dev/null 2>/dev/null; then
 192     CYGPATH_W='cygpath -w'
 193   else
 194     CYGPATH_W=echo
 195   fi
 196 fi
 197 AC_SUBST([CYGPATH_W])
 198
 199 # Define the identity of the package.
 200 dnl Distinguish between old-style and new-style calls.
 201 m4_ifval([$2],
 202 [AC_DIAGNOSE([obsolete],
 203              [$0: two- and three-arguments forms are deprecated.])
 204 m4_ifval([$3], [_AM_SET_OPTION([no-define])])dnl
 205  AC_SUBST([PACKAGE], [$1])dnl
 206  AC_SUBST([VERSION], [$2])],
 207 [_AM_SET_OPTIONS([$1])dnl
 208 dnl Diagnose old-style AC_INIT with new-style AM_AUTOMAKE_INIT.
 209 m4_if(
 210   m4_ifdef([AC_PACKAGE_NAME], [ok]):m4_ifdef([AC_PACKAGE_VERSION], [ok]),
 211   [ok:ok],,
 212   [m4_fatal([AC_INIT should be called with package and version arguments])])dnl
 213  AC_SUBST([PACKAGE], ['AC_PACKAGE_TARNAME'])dnl
 214  AC_SUBST([VERSION], ['AC_PACKAGE_VERSION'])])dnl
 215
 216 _AM_IF_OPTION([no-define],,
 217 [AC_DEFINE_UNQUOTED([PACKAGE], ["$PACKAGE"], [Name of package])
 218  AC_DEFINE_UNQUOTED([VERSION], ["$VERSION"], [Version number of package])])dnl
 219
 220 # Some tools Automake needs.
 221 AC_REQUIRE([AM_SANITY_CHECK])dnl
 222 AC_REQUIRE([AC_ARG_PROGRAM])dnl
 223 AM_MISSING_PROG([ACLOCAL], [aclocal-${am__api_version}])
 224 AM_MISSING_PROG([AUTOCONF], [autoconf])
 225 AM_MISSING_PROG([AUTOMAKE], [automake-${am__api_version}])
 226 AM_MISSING_PROG([AUTOHEADER], [autoheader])
 227 AM_MISSING_PROG([MAKEINFO], [makeinfo])
 228 AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
 229 AC_REQUIRE([AM_PROG_INSTALL_STRIP])dnl
 230 AC_REQUIRE([AC_PROG_MKDIR_P])dnl
 231 # For better backward compatibility.  To be removed once Automake 1.9.x
 232 # dies out for good.  For more background, see:
 233 # <http://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
 234 # <http://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
 235 AC_SUBST([mkdir_p], ['$(MKDIR_P)'])
 236 # We need awk for the "check" target (and possibly the TAP driver).  The
 237 # system "awk" is bad on some platforms.
 238 AC_REQUIRE([AC_PROG_AWK])dnl
 239 AC_REQUIRE([AC_PROG_MAKE_SET])dnl
 240 AC_REQUIRE([AM_SET_LEADING_DOT])dnl
 241 _AM_IF_OPTION([tar-ustar], [_AM_PROG_TAR([ustar])],
 242               [_AM_IF_OPTION([tar-pax], [_AM_PROG_TAR([pax])],
 243                              [_AM_PROG_TAR([v7])])])
 244 _AM_IF_OPTION([no-dependencies],,
 245 [AC_PROVIDE_IFELSE([AC_PROG_CC],
 246                   [_AM_DEPENDENCIES([CC])],
 247                   [m4_define([AC_PROG_CC],
 248                              m4_defn([AC_PROG_CC])[_AM_DEPENDENCIES([CC])])])dnl
 249 AC_PROVIDE_IFELSE([AC_PROG_CXX],
 250                   [_AM_DEPENDENCIES([CXX])],
 251                   [m4_define([AC_PROG_CXX],
 252                              m4_defn([AC_PROG_CXX])[_AM_DEPENDENCIES([CXX])])])dnl
 253 AC_PROVIDE_IFELSE([AC_PROG_OBJC],
 254                   [_AM_DEPENDENCIES([OBJC])],
 255                   [m4_define([AC_PROG_OBJC],
 256                              m4_defn([AC_PROG_OBJC])[_AM_DEPENDENCIES([OBJC])])])dnl
 257 AC_PROVIDE_IFELSE([AC_PROG_OBJCXX],
 258                   [_AM_DEPENDENCIES([OBJCXX])],
 259                   [m4_define([AC_PROG_OBJCXX],
 260                              m4_defn([AC_PROG_OBJCXX])[_AM_DEPENDENCIES([OBJCXX])])])dnl
 261 ])
 262 AC_REQUIRE([AM_SILENT_RULES])dnl
 263 dnl The testsuite driver may need to know about EXEEXT, so add the
 264 dnl 'am__EXEEXT' conditional if _AM_COMPILER_EXEEXT was seen.  This
 265 dnl macro is hooked onto _AC_COMPILER_EXEEXT early, see below.
 266 AC_CONFIG_COMMANDS_PRE(dnl
 267 [m4_provide_if([_AM_COMPILER_EXEEXT],
 268   [AM_CONDITIONAL([am__EXEEXT], [test -n "$EXEEXT"])])])dnl
 269
 270 # POSIX will say in a future version that running "rm -f" with no argument
 271 # is OK; and we want to be able to make that assumption in our Makefile
 272 # recipes.  So use an aggressive probe to check that the usage we want is
 273 # actually supported "in the wild" to an acceptable degree.
 274 # See automake bug#10828.
 275 # To make any issue more visible, cause the running configure to be aborted
 276 # by default if the 'rm' program in use doesn't match our expectations; the
 277 # user can still override this though.
 278 if rm -f && rm -fr && rm -rf; then : OK; else
 279   cat >&2 <<'END'
 280 Oops!
 281
 282 Your 'rm' program seems unable to run without file operands specified
 283 on the command line, even when the '-f' option is present.  This is contrary
 284 to the behaviour of most rm programs out there, and not conforming with
 285 the upcoming POSIX standard: <http://austingroupbugs.net/view.php?id=542>
 286
 287 Please tell bug-automake@gnu.org about your system, including the value
 288 of your $PATH and any error possibly output before this message.  This
 289 can help us improve future automake versions.
 290
 291 END
 292   if test x"$ACCEPT_INFERIOR_RM_PROGRAM" = x"yes"; then
 293     echo 'Configuration will proceed anyway, since you have set the' >&2
 294     echo 'ACCEPT_INFERIOR_RM_PROGRAM variable to "yes"' >&2
 295     echo >&2
 296   else
 297     cat >&2 <<'END'
 298 Aborting the configuration process, to ensure you take notice of the issue.
 299
 300 You can download and install GNU coreutils to get an 'rm' implementation
 301 that behaves properly: <http://www.gnu.org/software/coreutils/>.
 302
 303 If you want to complete the configuration process using your problematic
 304 'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM
 305 to "yes", and re-run configure.
 306
 307 END
 308     AC_MSG_ERROR([Your 'rm' program is bad, sorry.])
 309   fi
 310 fi
 311 dnl The trailing newline in this macro's definition is deliberate, for
 312 dnl backward compatibility and to allow trailing 'dnl'-style comments
 313 dnl after the AM_INIT_AUTOMAKE invocation. See automake bug#16841.
 314 ])
 315
 316 dnl Hook into '_AC_COMPILER_EXEEXT' early to learn its expansion.  Do not
 317 dnl add the conditional right here, as _AC_COMPILER_EXEEXT may be further
 318 dnl mangled by Autoconf and run in a shell conditional statement.
 319 m4_define([_AC_COMPILER_EXEEXT],
 320 m4_defn([_AC_COMPILER_EXEEXT])[m4_provide([_AM_COMPILER_EXEEXT])])
 321
 322 # When config.status generates a header, we must update the stamp-h file.
 323 # This file resides in the same directory as the config header
 324 # that is generated.  The stamp files are numbered to have different names.
 325
 326 # Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the
 327 # loop where config.status creates the headers, so we can generate
 328 # our stamp files there.
 329 AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK],
 330 [# Compute $1's index in $config_headers.
 331 _am_arg=$1
 332 _am_stamp_count=1
 333 for _am_header in $config_headers :; do
 334   case $_am_header in
 335     $_am_arg | $_am_arg:* )
 336       break ;;
 337     * )
 338       _am_stamp_count=`expr $_am_stamp_count + 1` ;;
 339   esac
 340 done
 341 echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
 342
 343 # Copyright (C) 2001-2017 Free Software Foundation, Inc.
 344 #
 345 # This file is free software; the Free Software Foundation
 346 # gives unlimited permission to copy and/or distribute it,
 347 # with or without modifications, as long as this notice is preserved.
 348
 349 # AM_PROG_INSTALL_SH
 350 # ------------------
 351 # Define $install_sh.
 352 AC_DEFUN([AM_PROG_INSTALL_SH],
 353 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
 354 if test x"${install_sh+set}" != xset; then
 355   case $am_aux_dir in
 356   *\ * | *\     *)
 357     install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
 358   *)
 359     install_sh="\${SHELL} $am_aux_dir/install-sh"
 360   esac
 361 fi
 362 AC_SUBST([install_sh])])
 363
 364 # Add --enable-maintainer-mode option to configure.         -*- Autoconf -*-
 365 # From Jim Meyering
 366
 367 # Copyright (C) 1996-2017 Free Software Foundation, Inc.
 368 #
 369 # This file is free software; the Free Software Foundation
 370 # gives unlimited permission to copy and/or distribute it,
 371 # with or without modifications, as long as this notice is preserved.
 372
 373 # AM_MAINTAINER_MODE([DEFAULT-MODE])
 374 # ----------------------------------
 375 # Control maintainer-specific portions of Makefiles.
 376 # Default is to disable them, unless 'enable' is passed literally.
 377 # For symmetry, 'disable' may be passed as well.  Anyway, the user
 378 # can override the default with the --enable/--disable switch.
 379 AC_DEFUN([AM_MAINTAINER_MODE],
 380 [m4_case(m4_default([$1], [disable]),
 381        [enable], [m4_define([am_maintainer_other], [disable])],
 382        [disable], [m4_define([am_maintainer_other], [enable])],
 383        [m4_define([am_maintainer_other], [enable])
 384         m4_warn([syntax], [unexpected argument to AM@&t@_MAINTAINER_MODE: $1])])
 385 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
 386   dnl maintainer-mode's default is 'disable' unless 'enable' is passed
 387   AC_ARG_ENABLE([maintainer-mode],
 388     [AS_HELP_STRING([--]am_maintainer_other[-maintainer-mode],
 389       am_maintainer_other[ make rules and dependencies not useful
 390       (and sometimes confusing) to the casual installer])],
 391     [USE_MAINTAINER_MODE=$enableval],
 392     [USE_MAINTAINER_MODE=]m4_if(am_maintainer_other, [enable], [no], [yes]))
 393   AC_MSG_RESULT([$USE_MAINTAINER_MODE])
 394   AM_CONDITIONAL([MAINTAINER_MODE], [test $USE_MAINTAINER_MODE = yes])
 395   MAINT=$MAINTAINER_MODE_TRUE
 396   AC_SUBST([MAINT])dnl
 397 ]
 398 )
 399
 400 # Fake the existence of programs that GNU maintainers use.  -*- Autoconf -*-
 401
 402 # Copyright (C) 1997-2017 Free Software Foundation, Inc.
 403 #
 404 # This file is free software; the Free Software Foundation
 405 # gives unlimited permission to copy and/or distribute it,
 406 # with or without modifications, as long as this notice is preserved.
 407
 408 # AM_MISSING_PROG(NAME, PROGRAM)
 409 # ------------------------------
 410 AC_DEFUN([AM_MISSING_PROG],
 411 [AC_REQUIRE([AM_MISSING_HAS_RUN])
 412 $1=${$1-"${am_missing_run}$2"}
 413 AC_SUBST($1)])
 414
 415 # AM_MISSING_HAS_RUN
 416 # ------------------
 417 # Define MISSING if not defined so far and test if it is modern enough.
 418 # If it is, set am_missing_run to use it, otherwise, to nothing.
 419 AC_DEFUN([AM_MISSING_HAS_RUN],
 420 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
 421 AC_REQUIRE_AUX_FILE([missing])dnl
 422 if test x"${MISSING+set}" != xset; then
 423   case $am_aux_dir in
 424   *\ * | *\     *)
 425     MISSING="\${SHELL} \"$am_aux_dir/missing\"" ;;
 426   *)
 427     MISSING="\${SHELL} $am_aux_dir/missing" ;;
 428   esac
 429 fi
 430 # Use eval to expand $SHELL
 431 if eval "$MISSING --is-lightweight"; then
 432   am_missing_run="$MISSING "
 433 else
 434   am_missing_run=
 435   AC_MSG_WARN(['missing' script is too old or missing])
 436 fi
 437 ])
 438
 439 # Helper functions for option handling.                     -*- Autoconf -*-
 440
 441 # Copyright (C) 2001-2017 Free Software Foundation, Inc.
 442 #
 443 # This file is free software; the Free Software Foundation
 444 # gives unlimited permission to copy and/or distribute it,
 445 # with or without modifications, as long as this notice is preserved.
 446
 447 # _AM_MANGLE_OPTION(NAME)
 448 # -----------------------
 449 AC_DEFUN([_AM_MANGLE_OPTION],
 450 [[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
 451
 452 # _AM_SET_OPTION(NAME)
 453 # --------------------
 454 # Set option NAME.  Presently that only means defining a flag for this option.
 455 AC_DEFUN([_AM_SET_OPTION],
 456 [m4_define(_AM_MANGLE_OPTION([$1]), [1])])
 457
 458 # _AM_SET_OPTIONS(OPTIONS)
 459 # ------------------------
 460 # OPTIONS is a space-separated list of Automake options.
 461 AC_DEFUN([_AM_SET_OPTIONS],
 462 [m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
 463
 464 # _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
 465 # -------------------------------------------
 466 # Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
 467 AC_DEFUN([_AM_IF_OPTION],
 468 [m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
 469
 470 # Check to make sure that the build environment is sane.    -*- Autoconf -*-
 471
 472 # Copyright (C) 1996-2017 Free Software Foundation, Inc.
 473 #
 474 # This file is free software; the Free Software Foundation
 475 # gives unlimited permission to copy and/or distribute it,
 476 # with or without modifications, as long as this notice is preserved.
 477
 478 # AM_SANITY_CHECK
 479 # ---------------
 480 AC_DEFUN([AM_SANITY_CHECK],
 481 [AC_MSG_CHECKING([whether build environment is sane])
 482 # Reject unsafe characters in $srcdir or the absolute working directory
 483 # name.  Accept space and tab only in the latter.
 484 am_lf='
 485 '
 486 case `pwd` in
 487   *[[\\\"\#\$\&\'\`$am_lf]]*)
 488     AC_MSG_ERROR([unsafe absolute working directory name]);;
 489 esac
 490 case $srcdir in
 491   *[[\\\"\#\$\&\'\`$am_lf\ \    ]]*)
 492     AC_MSG_ERROR([unsafe srcdir value: '$srcdir']);;
 493 esac
 494
 495 # Do 'set' in a subshell so we don't clobber the current shell's
 496 # arguments.  Must try -L first in case configure is actually a
 497 # symlink; some systems play weird games with the mod time of symlinks
 498 # (eg FreeBSD returns the mod time of the symlink's containing
 499 # directory).
 500 if (
 501    am_has_slept=no
 502    for am_try in 1 2; do
 503      echo "timestamp, slept: $am_has_slept" > conftest.file
 504      set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
 505      if test "$[*]" = "X"; then
 506         # -L didn't work.
 507         set X `ls -t "$srcdir/configure" conftest.file`
 508      fi
 509      if test "$[*]" != "X $srcdir/configure conftest.file" \
 510         && test "$[*]" != "X conftest.file $srcdir/configure"; then
 511
 512         # If neither matched, then we have a broken ls.  This can happen
 513         # if, for instance, CONFIG_SHELL is bash and it inherits a
 514         # broken ls alias from the environment.  This has actually
 515         # happened.  Such a system could not be considered "sane".
 516         AC_MSG_ERROR([ls -t appears to fail.  Make sure there is not a broken
 517   alias in your environment])
 518      fi
 519      if test "$[2]" = conftest.file || test $am_try -eq 2; then
 520        break
 521      fi
 522      # Just in case.
 523      sleep 1
 524      am_has_slept=yes
 525    done
 526    test "$[2]" = conftest.file
 527    )
 528 then
 529    # Ok.
 530    :
 531 else
 532    AC_MSG_ERROR([newly created file is older than distributed files!
 533 Check your system clock])
 534 fi
 535 AC_MSG_RESULT([yes])
 536 # If we didn't sleep, we still need to ensure time stamps of config.status and
 537 # generated files are strictly newer.
 538 am_sleep_pid=
 539 if grep 'slept: no' conftest.file >/dev/null 2>&1; then
 540   ( sleep 1 ) &
 541   am_sleep_pid=$!
 542 fi
 543 AC_CONFIG_COMMANDS_PRE(
 544   [AC_MSG_CHECKING([that generated files are newer than configure])
 545    if test -n "$am_sleep_pid"; then
 546      # Hide warnings about reused PIDs.
 547      wait $am_sleep_pid 2>/dev/null
 548    fi
 549    AC_MSG_RESULT([done])])
 550 rm -f conftest.file
 551 ])
 552
 553 # Copyright (C) 2009-2017 Free Software Foundation, Inc.
 554 #
 555 # This file is free software; the Free Software Foundation
 556 # gives unlimited permission to copy and/or distribute it,
 557 # with or without modifications, as long as this notice is preserved.
 558
 559 # AM_SILENT_RULES([DEFAULT])
 560 # --------------------------
 561 # Enable less verbose build rules; with the default set to DEFAULT
 562 # ("yes" being less verbose, "no" or empty being verbose).
 563 AC_DEFUN([AM_SILENT_RULES],
 564 [AC_ARG_ENABLE([silent-rules], [dnl
 565 AS_HELP_STRING(
 566   [--enable-silent-rules],
 567   [less verbose build output (undo: "make V=1")])
 568 AS_HELP_STRING(
 569   [--disable-silent-rules],
 570   [verbose build output (undo: "make V=0")])dnl
 571 ])
 572 case $enable_silent_rules in @%:@ (((
 573   yes) AM_DEFAULT_VERBOSITY=0;;
 574    no) AM_DEFAULT_VERBOSITY=1;;
 575     *) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);;
 576 esac
 577 dnl
 578 dnl A few 'make' implementations (e.g., NonStop OS and NextStep)
 579 dnl do not support nested variable expansions.
 580 dnl See automake bug#9928 and bug#10237.
 581 am_make=${MAKE-make}
 582 AC_CACHE_CHECK([whether $am_make supports nested variables],
 583    [am_cv_make_support_nested_variables],
 584    [if AS_ECHO([['TRUE=$(BAR$(V))
 585 BAR0=false
 586 BAR1=true
 587 V=1
 588 am__doit:
 589         @$(TRUE)
 590 .PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then
 591   am_cv_make_support_nested_variables=yes
 592 else
 593   am_cv_make_support_nested_variables=no
 594 fi])
 595 if test $am_cv_make_support_nested_variables = yes; then
 596   dnl Using '$V' instead of '$(V)' breaks IRIX make.
 597   AM_V='$(V)'
 598   AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
 599 else
 600   AM_V=$AM_DEFAULT_VERBOSITY
 601   AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
 602 fi
 603 AC_SUBST([AM_V])dnl
 604 AM_SUBST_NOTMAKE([AM_V])dnl
 605 AC_SUBST([AM_DEFAULT_V])dnl
 606 AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl
 607 AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
 608 AM_BACKSLASH='\'
 609 AC_SUBST([AM_BACKSLASH])dnl
 610 _AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
 611 ])
 612
 613 # Copyright (C) 2001-2017 Free Software Foundation, Inc.
 614 #
 615 # This file is free software; the Free Software Foundation
 616 # gives unlimited permission to copy and/or distribute it,
 617 # with or without modifications, as long as this notice is preserved.
 618
 619 # AM_PROG_INSTALL_STRIP
 620 # ---------------------
 621 # One issue with vendor 'install' (even GNU) is that you can't
 622 # specify the program used to strip binaries.  This is especially
 623 # annoying in cross-compiling environments, where the build's strip
 624 # is unlikely to handle the host's binaries.
 625 # Fortunately install-sh will honor a STRIPPROG variable, so we
 626 # always use install-sh in "make install-strip", and initialize
 627 # STRIPPROG with the value of the STRIP variable (set by the user).
 628 AC_DEFUN([AM_PROG_INSTALL_STRIP],
 629 [AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
 630 # Installed binaries are usually stripped using 'strip' when the user
 631 # run "make install-strip".  However 'strip' might not be the right
 632 # tool to use in cross-compilation environments, therefore Automake
 633 # will honor the 'STRIP' environment variable to overrule this program.
 634 dnl Don't test for $cross_compiling = yes, because it might be 'maybe'.
 635 if test "$cross_compiling" != no; then
 636   AC_CHECK_TOOL([STRIP], [strip], :)
 637 fi
 638 INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
 639 AC_SUBST([INSTALL_STRIP_PROGRAM])])
 640
 641 # Copyright (C) 2006-2017 Free Software Foundation, Inc.
 642 #
 643 # This file is free software; the Free Software Foundation
 644 # gives unlimited permission to copy and/or distribute it,
 645 # with or without modifications, as long as this notice is preserved.
 646
 647 # _AM_SUBST_NOTMAKE(VARIABLE)
 648 # ---------------------------
 649 # Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
 650 # This macro is traced by Automake.
 651 AC_DEFUN([_AM_SUBST_NOTMAKE])
 652
 653 # AM_SUBST_NOTMAKE(VARIABLE)
 654 # --------------------------
 655 # Public sister of _AM_SUBST_NOTMAKE.
 656 AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
 657
 658 # Check how to create a tarball.                            -*- Autoconf -*-
 659
 660 # Copyright (C) 2004-2017 Free Software Foundation, Inc.
 661 #
 662 # This file is free software; the Free Software Foundation
 663 # gives unlimited permission to copy and/or distribute it,
 664 # with or without modifications, as long as this notice is preserved.
 665
 666 # _AM_PROG_TAR(FORMAT)
 667 # --------------------
 668 # Check how to create a tarball in format FORMAT.
 669 # FORMAT should be one of 'v7', 'ustar', or 'pax'.
 670 #
 671 # Substitute a variable $(am__tar) that is a command
 672 # writing to stdout a FORMAT-tarball containing the directory
 673 # $tardir.
 674 #     tardir=directory && $(am__tar) > result.tar
 675 #
 676 # Substitute a variable $(am__untar) that extract such
 677 # a tarball read from stdin.
 678 #     $(am__untar) < result.tar
 679 #
 680 AC_DEFUN([_AM_PROG_TAR],
 681 [# Always define AMTAR for backward compatibility.  Yes, it's still used
 682 # in the wild :-(  We should find a proper way to deprecate it ...
 683 AC_SUBST([AMTAR], ['$${TAR-tar}'])
 684
 685 # We'll loop over all known methods to create a tar archive until one works.
 686 _am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
 687
 688 m4_if([$1], [v7],
 689   [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],
 690
 691   [m4_case([$1],
 692     [ustar],
 693      [# The POSIX 1988 'ustar' format is defined with fixed-size fields.
 694       # There is notably a 21 bits limit for the UID and the GID.  In fact,
 695       # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343
 696       # and bug#13588).
 697       am_max_uid=2097151 # 2^21 - 1
 698       am_max_gid=$am_max_uid
 699       # The $UID and $GID variables are not portable, so we need to resort
 700       # to the POSIX-mandated id(1) utility.  Errors in the 'id' calls
 701       # below are definitely unexpected, so allow the users to see them
 702       # (that is, avoid stderr redirection).
 703       am_uid=`id -u || echo unknown`
 704       am_gid=`id -g || echo unknown`
 705       AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format])
 706       if test $am_uid -le $am_max_uid; then
 707          AC_MSG_RESULT([yes])
 708       else
 709          AC_MSG_RESULT([no])
 710          _am_tools=none
 711       fi
 712       AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format])
 713       if test $am_gid -le $am_max_gid; then
 714          AC_MSG_RESULT([yes])
 715       else
 716         AC_MSG_RESULT([no])
 717         _am_tools=none
 718       fi],
 719
 720   [pax],
 721     [],
 722
 723   [m4_fatal([Unknown tar format])])
 724
 725   AC_MSG_CHECKING([how to create a $1 tar archive])
 726
 727   # Go ahead even if we have the value already cached.  We do so because we
 728   # need to set the values for the 'am__tar' and 'am__untar' variables.
 729   _am_tools=${am_cv_prog_tar_$1-$_am_tools}
 730
 731   for _am_tool in $_am_tools; do
 732     case $_am_tool in
 733     gnutar)
 734       for _am_tar in tar gnutar gtar; do
 735         AM_RUN_LOG([$_am_tar --version]) && break
 736       done
 737       am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
 738       am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
 739       am__untar="$_am_tar -xf -"
 740       ;;
 741     plaintar)
 742       # Must skip GNU tar: if it does not support --format= it doesn't create
 743       # ustar tarball either.
 744       (tar --version) >/dev/null 2>&1 && continue
 745       am__tar='tar chf - "$$tardir"'
 746       am__tar_='tar chf - "$tardir"'
 747       am__untar='tar xf -'
 748       ;;
 749     pax)
 750       am__tar='pax -L -x $1 -w "$$tardir"'
 751       am__tar_='pax -L -x $1 -w "$tardir"'
 752       am__untar='pax -r'
 753       ;;
 754     cpio)
 755       am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
 756       am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
 757       am__untar='cpio -i -H $1 -d'
 758       ;;
 759     none)
 760       am__tar=false
 761       am__tar_=false
 762       am__untar=false
 763       ;;
 764     esac
 765
 766     # If the value was cached, stop now.  We just wanted to have am__tar
 767     # and am__untar set.
 768     test -n "${am_cv_prog_tar_$1}" && break
 769
 770     # tar/untar a dummy directory, and stop if the command works.
 771     rm -rf conftest.dir
 772     mkdir conftest.dir
 773     echo GrepMe > conftest.dir/file
 774     AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
 775     rm -rf conftest.dir
 776     if test -s conftest.tar; then
 777       AM_RUN_LOG([$am__untar <conftest.tar])
 778       AM_RUN_LOG([cat conftest.dir/file])
 779       grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
 780     fi
 781   done
 782   rm -rf conftest.dir
 783
 784   AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
 785   AC_MSG_RESULT([$am_cv_prog_tar_$1])])
 786
 787 AC_SUBST([am__tar])
 788 AC_SUBST([am__untar])
 789 ]) # _AM_PROG_TAR
 790
 791 m4_include([../config/lead-dot.m4])
 792 m4_include([../config/override.m4])