libphobos/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($@)])])
  15 m4_ifndef([AC_AUTOCONF_VERSION],
  16   [m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl
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  19 You have another version of autoconf.  It may work, but is not guaranteed to.
  20 If you have problems, you may need to regenerate the build system entirely.
  21 To do so, use the procedure documented by the package, typically 'autoreconf'.])])
  22
  23 # Copyright (C) 2002-2017 Free Software Foundation, Inc.
  24 #
  25 # This file is free software; the Free Software Foundation
  26 # gives unlimited permission to copy and/or distribute it,
  27 # with or without modifications, as long as this notice is preserved.
  28
  29 # AM_AUTOMAKE_VERSION(VERSION)
  30 # ----------------------------
  31 # Automake X.Y traces this macro to ensure aclocal.m4 has been
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  49 # AM_SET_CURRENT_AUTOMAKE_VERSION
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  58
  59 # Figure out how to run the assembler.                      -*- Autoconf -*-
  60
  61 # Copyright (C) 2001-2017 Free Software Foundation, Inc.
  62 #
  63 # This file is free software; the Free Software Foundation
  64 # gives unlimited permission to copy and/or distribute it,
  65 # with or without modifications, as long as this notice is preserved.
  66
  67 # AM_PROG_AS
  68 # ----------
  69 AC_DEFUN([AM_PROG_AS],
  70 [# By default we simply use the C compiler to build assembly code.
  71 AC_REQUIRE([AC_PROG_CC])
  72 test "${CCAS+set}" = set || CCAS=$CC
  73 test "${CCASFLAGS+set}" = set || CCASFLAGS=$CFLAGS
  74 AC_ARG_VAR([CCAS],      [assembler compiler command (defaults to CC)])
  75 AC_ARG_VAR([CCASFLAGS], [assembler compiler flags (defaults to CFLAGS)])
  76 _AM_IF_OPTION([no-dependencies],, [_AM_DEPENDENCIES([CCAS])])dnl
  77 ])
  78
  79 # AM_AUX_DIR_EXPAND                                         -*- Autoconf -*-
  80
  81 # Copyright (C) 2001-2017 Free Software Foundation, Inc.
  82 #
  83 # This file is free software; the Free Software Foundation
  84 # gives unlimited permission to copy and/or distribute it,
  85 # with or without modifications, as long as this notice is preserved.
  86
  87 # For projects using AC_CONFIG_AUX_DIR([foo]), Autoconf sets
  88 # $ac_aux_dir to '$srcdir/foo'.  In other projects, it is set to
  89 # '$srcdir', '$srcdir/..', or '$srcdir/../..'.
  90 #
  91 # Of course, Automake must honor this variable whenever it calls a
  92 # tool from the auxiliary directory.  The problem is that $srcdir (and
  93 # therefore $ac_aux_dir as well) can be either absolute or relative,
  94 # depending on how configure is run.  This is pretty annoying, since
  95 # it makes $ac_aux_dir quite unusable in subdirectories: in the top
  96 # source directory, any form will work fine, but in subdirectories a
  97 # relative path needs to be adjusted first.
  98 #
  99 # $ac_aux_dir/missing
 100 #    fails when called from a subdirectory if $ac_aux_dir is relative
 101 # $top_srcdir/$ac_aux_dir/missing
 102 #    fails if $ac_aux_dir is absolute,
 103 #    fails when called from a subdirectory in a VPATH build with
 104 #          a relative $ac_aux_dir
 105 #
 106 # The reason of the latter failure is that $top_srcdir and $ac_aux_dir
 107 # are both prefixed by $srcdir.  In an in-source build this is usually
 108 # harmless because $srcdir is '.', but things will broke when you
 109 # start a VPATH build or use an absolute $srcdir.
 110 #
 111 # So we could use something similar to $top_srcdir/$ac_aux_dir/missing,
 112 # iff we strip the leading $srcdir from $ac_aux_dir.  That would be:
 113 #   am_aux_dir='\$(top_srcdir)/'`expr "$ac_aux_dir" : "$srcdir//*\(.*\)"`
 114 # and then we would define $MISSING as
 115 #   MISSING="\${SHELL} $am_aux_dir/missing"
 116 # This will work as long as MISSING is not called from configure, because
 117 # unfortunately $(top_srcdir) has no meaning in configure.
 118 # However there are other variables, like CC, which are often used in
 119 # configure, and could therefore not use this "fixed" $ac_aux_dir.
 120 #
 121 # Another solution, used here, is to always expand $ac_aux_dir to an
 122 # absolute PATH.  The drawback is that using absolute paths prevent a
 123 # configured tree to be moved without reconfiguration.
 124
 125 AC_DEFUN([AM_AUX_DIR_EXPAND],
 126 [AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
 127 # Expand $ac_aux_dir to an absolute path.
 128 am_aux_dir=`cd "$ac_aux_dir" && pwd`
 129 ])
 130
 131 # AM_CONDITIONAL                                            -*- Autoconf -*-
 132
 133 # Copyright (C) 1997-2017 Free Software Foundation, Inc.
 134 #
 135 # This file is free software; the Free Software Foundation
 136 # gives unlimited permission to copy and/or distribute it,
 137 # with or without modifications, as long as this notice is preserved.
 138
 139 # AM_CONDITIONAL(NAME, SHELL-CONDITION)
 140 # -------------------------------------
 141 # Define a conditional.
 142 AC_DEFUN([AM_CONDITIONAL],
 143 [AC_PREREQ([2.52])dnl
 144  m4_if([$1], [TRUE],  [AC_FATAL([$0: invalid condition: $1])],
 145        [$1], [FALSE], [AC_FATAL([$0: invalid condition: $1])])dnl
 146 AC_SUBST([$1_TRUE])dnl
 147 AC_SUBST([$1_FALSE])dnl
 148 _AM_SUBST_NOTMAKE([$1_TRUE])dnl
 149 _AM_SUBST_NOTMAKE([$1_FALSE])dnl
 150 m4_define([_AM_COND_VALUE_$1], [$2])dnl
 151 if $2; then
 152   $1_TRUE=
 153   $1_FALSE='#'
 154 else
 155   $1_TRUE='#'
 156   $1_FALSE=
 157 fi
 158 AC_CONFIG_COMMANDS_PRE(
 159 [if test -z "${$1_TRUE}" && test -z "${$1_FALSE}"; then
 160   AC_MSG_ERROR([[conditional "$1" was never defined.
 161 Usually this means the macro was only invoked conditionally.]])
 162 fi])])
 163
 164 # Do all the work for Automake.                             -*- Autoconf -*-
 165
 166 # Copyright (C) 1996-2017 Free Software Foundation, Inc.
 167 #
 168 # This file is free software; the Free Software Foundation
 169 # gives unlimited permission to copy and/or distribute it,
 170 # with or without modifications, as long as this notice is preserved.
 171
 172 # This macro actually does too much.  Some checks are only needed if
 173 # your package does certain things.  But this isn't really a big deal.
 174
 175 dnl Redefine AC_PROG_CC to automatically invoke _AM_PROG_CC_C_O.
 176 m4_define([AC_PROG_CC],
 177 m4_defn([AC_PROG_CC])
 178 [_AM_PROG_CC_C_O
 179 ])
 180
 181 # AM_INIT_AUTOMAKE(PACKAGE, VERSION, [NO-DEFINE])
 182 # AM_INIT_AUTOMAKE([OPTIONS])
 183 # -----------------------------------------------
 184 # The call with PACKAGE and VERSION arguments is the old style
 185 # call (pre autoconf-2.50), which is being phased out.  PACKAGE
 186 # and VERSION should now be passed to AC_INIT and removed from
 187 # the call to AM_INIT_AUTOMAKE.
 188 # We support both call styles for the transition.  After
 189 # the next Automake release, Autoconf can make the AC_INIT
 190 # arguments mandatory, and then we can depend on a new Autoconf
 191 # release and drop the old call support.
 192 AC_DEFUN([AM_INIT_AUTOMAKE],
 193 [AC_PREREQ([2.65])dnl
 194 dnl Autoconf wants to disallow AM_ names.  We explicitly allow
 195 dnl the ones we care about.
 196 m4_pattern_allow([^AM_[A-Z]+FLAGS$])dnl
 197 AC_REQUIRE([AM_SET_CURRENT_AUTOMAKE_VERSION])dnl
 198 AC_REQUIRE([AC_PROG_INSTALL])dnl
 199 if test "`cd $srcdir && pwd`" != "`pwd`"; then
 200   # Use -I$(srcdir) only when $(srcdir) != ., so that make's output
 201   # is not polluted with repeated "-I."
 202   AC_SUBST([am__isrc], [' -I$(srcdir)'])_AM_SUBST_NOTMAKE([am__isrc])dnl
 203   # test to see if srcdir already configured
 204   if test -f $srcdir/config.status; then
 205     AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
 206   fi
 207 fi
 208
 209 # test whether we have cygpath
 210 if test -z "$CYGPATH_W"; then
 211   if (cygpath --version) >/dev/null 2>/dev/null; then
 212     CYGPATH_W='cygpath -w'
 213   else
 214     CYGPATH_W=echo
 215   fi
 216 fi
 217 AC_SUBST([CYGPATH_W])
 218
 219 # Define the identity of the package.
 220 dnl Distinguish between old-style and new-style calls.
 221 m4_ifval([$2],
 222 [AC_DIAGNOSE([obsolete],
 223              [$0: two- and three-arguments forms are deprecated.])
 224 m4_ifval([$3], [_AM_SET_OPTION([no-define])])dnl
 225  AC_SUBST([PACKAGE], [$1])dnl
 226  AC_SUBST([VERSION], [$2])],
 227 [_AM_SET_OPTIONS([$1])dnl
 228 dnl Diagnose old-style AC_INIT with new-style AM_AUTOMAKE_INIT.
 229 m4_if(
 230   m4_ifdef([AC_PACKAGE_NAME], [ok]):m4_ifdef([AC_PACKAGE_VERSION], [ok]),
 231   [ok:ok],,
 232   [m4_fatal([AC_INIT should be called with package and version arguments])])dnl
 233  AC_SUBST([PACKAGE], ['AC_PACKAGE_TARNAME'])dnl
 234  AC_SUBST([VERSION], ['AC_PACKAGE_VERSION'])])dnl
 235
 236 _AM_IF_OPTION([no-define],,
 237 [AC_DEFINE_UNQUOTED([PACKAGE], ["$PACKAGE"], [Name of package])
 238  AC_DEFINE_UNQUOTED([VERSION], ["$VERSION"], [Version number of package])])dnl
 239
 240 # Some tools Automake needs.
 241 AC_REQUIRE([AM_SANITY_CHECK])dnl
 242 AC_REQUIRE([AC_ARG_PROGRAM])dnl
 243 AM_MISSING_PROG([ACLOCAL], [aclocal-${am__api_version}])
 244 AM_MISSING_PROG([AUTOCONF], [autoconf])
 245 AM_MISSING_PROG([AUTOMAKE], [automake-${am__api_version}])
 246 AM_MISSING_PROG([AUTOHEADER], [autoheader])
 247 AM_MISSING_PROG([MAKEINFO], [makeinfo])
 248 AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
 249 AC_REQUIRE([AM_PROG_INSTALL_STRIP])dnl
 250 AC_REQUIRE([AC_PROG_MKDIR_P])dnl
 251 # For better backward compatibility.  To be removed once Automake 1.9.x
 252 # dies out for good.  For more background, see:
 253 # <http://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
 254 # <http://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
 255 AC_SUBST([mkdir_p], ['$(MKDIR_P)'])
 256 # We need awk for the "check" target (and possibly the TAP driver).  The
 257 # system "awk" is bad on some platforms.
 258 AC_REQUIRE([AC_PROG_AWK])dnl
 259 AC_REQUIRE([AC_PROG_MAKE_SET])dnl
 260 AC_REQUIRE([AM_SET_LEADING_DOT])dnl
 261 _AM_IF_OPTION([tar-ustar], [_AM_PROG_TAR([ustar])],
 262               [_AM_IF_OPTION([tar-pax], [_AM_PROG_TAR([pax])],
 263                              [_AM_PROG_TAR([v7])])])
 264 _AM_IF_OPTION([no-dependencies],,
 265 [AC_PROVIDE_IFELSE([AC_PROG_CC],
 266                   [_AM_DEPENDENCIES([CC])],
 267                   [m4_define([AC_PROG_CC],
 268                              m4_defn([AC_PROG_CC])[_AM_DEPENDENCIES([CC])])])dnl
 269 AC_PROVIDE_IFELSE([AC_PROG_CXX],
 270                   [_AM_DEPENDENCIES([CXX])],
 271                   [m4_define([AC_PROG_CXX],
 272                              m4_defn([AC_PROG_CXX])[_AM_DEPENDENCIES([CXX])])])dnl
 273 AC_PROVIDE_IFELSE([AC_PROG_OBJC],
 274                   [_AM_DEPENDENCIES([OBJC])],
 275                   [m4_define([AC_PROG_OBJC],
 276                              m4_defn([AC_PROG_OBJC])[_AM_DEPENDENCIES([OBJC])])])dnl
 277 AC_PROVIDE_IFELSE([AC_PROG_OBJCXX],
 278                   [_AM_DEPENDENCIES([OBJCXX])],
 279                   [m4_define([AC_PROG_OBJCXX],
 280                              m4_defn([AC_PROG_OBJCXX])[_AM_DEPENDENCIES([OBJCXX])])])dnl
 281 ])
 282 AC_REQUIRE([AM_SILENT_RULES])dnl
 283 dnl The testsuite driver may need to know about EXEEXT, so add the
 284 dnl 'am__EXEEXT' conditional if _AM_COMPILER_EXEEXT was seen.  This
 285 dnl macro is hooked onto _AC_COMPILER_EXEEXT early, see below.
 286 AC_CONFIG_COMMANDS_PRE(dnl
 287 [m4_provide_if([_AM_COMPILER_EXEEXT],
 288   [AM_CONDITIONAL([am__EXEEXT], [test -n "$EXEEXT"])])])dnl
 289
 290 # POSIX will say in a future version that running "rm -f" with no argument
 291 # is OK; and we want to be able to make that assumption in our Makefile
 292 # recipes.  So use an aggressive probe to check that the usage we want is
 293 # actually supported "in the wild" to an acceptable degree.
 294 # See automake bug#10828.
 295 # To make any issue more visible, cause the running configure to be aborted
 296 # by default if the 'rm' program in use doesn't match our expectations; the
 297 # user can still override this though.
 298 if rm -f && rm -fr && rm -rf; then : OK; else
 299   cat >&2 <<'END'
 300 Oops!
 301
 302 Your 'rm' program seems unable to run without file operands specified
 303 on the command line, even when the '-f' option is present.  This is contrary
 304 to the behaviour of most rm programs out there, and not conforming with
 305 the upcoming POSIX standard: <http://austingroupbugs.net/view.php?id=542>
 306
 307 Please tell bug-automake@gnu.org about your system, including the value
 308 of your $PATH and any error possibly output before this message.  This
 309 can help us improve future automake versions.
 310
 311 END
 312   if test x"$ACCEPT_INFERIOR_RM_PROGRAM" = x"yes"; then
 313     echo 'Configuration will proceed anyway, since you have set the' >&2
 314     echo 'ACCEPT_INFERIOR_RM_PROGRAM variable to "yes"' >&2
 315     echo >&2
 316   else
 317     cat >&2 <<'END'
 318 Aborting the configuration process, to ensure you take notice of the issue.
 319
 320 You can download and install GNU coreutils to get an 'rm' implementation
 321 that behaves properly: <http://www.gnu.org/software/coreutils/>.
 322
 323 If you want to complete the configuration process using your problematic
 324 'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM
 325 to "yes", and re-run configure.
 326
 327 END
 328     AC_MSG_ERROR([Your 'rm' program is bad, sorry.])
 329   fi
 330 fi
 331 dnl The trailing newline in this macro's definition is deliberate, for
 332 dnl backward compatibility and to allow trailing 'dnl'-style comments
 333 dnl after the AM_INIT_AUTOMAKE invocation. See automake bug#16841.
 334 ])
 335
 336 dnl Hook into '_AC_COMPILER_EXEEXT' early to learn its expansion.  Do not
 337 dnl add the conditional right here, as _AC_COMPILER_EXEEXT may be further
 338 dnl mangled by Autoconf and run in a shell conditional statement.
 339 m4_define([_AC_COMPILER_EXEEXT],
 340 m4_defn([_AC_COMPILER_EXEEXT])[m4_provide([_AM_COMPILER_EXEEXT])])
 341
 342 # When config.status generates a header, we must update the stamp-h file.
 343 # This file resides in the same directory as the config header
 344 # that is generated.  The stamp files are numbered to have different names.
 345
 346 # Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the
 347 # loop where config.status creates the headers, so we can generate
 348 # our stamp files there.
 349 AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK],
 350 [# Compute $1's index in $config_headers.
 351 _am_arg=$1
 352 _am_stamp_count=1
 353 for _am_header in $config_headers :; do
 354   case $_am_header in
 355     $_am_arg | $_am_arg:* )
 356       break ;;
 357     * )
 358       _am_stamp_count=`expr $_am_stamp_count + 1` ;;
 359   esac
 360 done
 361 echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
 362
 363 # Copyright (C) 2001-2017 Free Software Foundation, Inc.
 364 #
 365 # This file is free software; the Free Software Foundation
 366 # gives unlimited permission to copy and/or distribute it,
 367 # with or without modifications, as long as this notice is preserved.
 368
 369 # AM_PROG_INSTALL_SH
 370 # ------------------
 371 # Define $install_sh.
 372 AC_DEFUN([AM_PROG_INSTALL_SH],
 373 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
 374 if test x"${install_sh+set}" != xset; then
 375   case $am_aux_dir in
 376   *\ * | *\     *)
 377     install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
 378   *)
 379     install_sh="\${SHELL} $am_aux_dir/install-sh"
 380   esac
 381 fi
 382 AC_SUBST([install_sh])])
 383
 384 # Add --enable-maintainer-mode option to configure.         -*- Autoconf -*-
 385 # From Jim Meyering
 386
 387 # Copyright (C) 1996-2017 Free Software Foundation, Inc.
 388 #
 389 # This file is free software; the Free Software Foundation
 390 # gives unlimited permission to copy and/or distribute it,
 391 # with or without modifications, as long as this notice is preserved.
 392
 393 # AM_MAINTAINER_MODE([DEFAULT-MODE])
 394 # ----------------------------------
 395 # Control maintainer-specific portions of Makefiles.
 396 # Default is to disable them, unless 'enable' is passed literally.
 397 # For symmetry, 'disable' may be passed as well.  Anyway, the user
 398 # can override the default with the --enable/--disable switch.
 399 AC_DEFUN([AM_MAINTAINER_MODE],
 400 [m4_case(m4_default([$1], [disable]),
 401        [enable], [m4_define([am_maintainer_other], [disable])],
 402        [disable], [m4_define([am_maintainer_other], [enable])],
 403        [m4_define([am_maintainer_other], [enable])
 404         m4_warn([syntax], [unexpected argument to AM@&t@_MAINTAINER_MODE: $1])])
 405 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
 406   dnl maintainer-mode's default is 'disable' unless 'enable' is passed
 407   AC_ARG_ENABLE([maintainer-mode],
 408     [AS_HELP_STRING([--]am_maintainer_other[-maintainer-mode],
 409       am_maintainer_other[ make rules and dependencies not useful
 410       (and sometimes confusing) to the casual installer])],
 411     [USE_MAINTAINER_MODE=$enableval],
 412     [USE_MAINTAINER_MODE=]m4_if(am_maintainer_other, [enable], [no], [yes]))
 413   AC_MSG_RESULT([$USE_MAINTAINER_MODE])
 414   AM_CONDITIONAL([MAINTAINER_MODE], [test $USE_MAINTAINER_MODE = yes])
 415   MAINT=$MAINTAINER_MODE_TRUE
 416   AC_SUBST([MAINT])dnl
 417 ]
 418 )
 419
 420 # Fake the existence of programs that GNU maintainers use.  -*- Autoconf -*-
 421
 422 # Copyright (C) 1997-2017 Free Software Foundation, Inc.
 423 #
 424 # This file is free software; the Free Software Foundation
 425 # gives unlimited permission to copy and/or distribute it,
 426 # with or without modifications, as long as this notice is preserved.
 427
 428 # AM_MISSING_PROG(NAME, PROGRAM)
 429 # ------------------------------
 430 AC_DEFUN([AM_MISSING_PROG],
 431 [AC_REQUIRE([AM_MISSING_HAS_RUN])
 432 $1=${$1-"${am_missing_run}$2"}
 433 AC_SUBST($1)])
 434
 435 # AM_MISSING_HAS_RUN
 436 # ------------------
 437 # Define MISSING if not defined so far and test if it is modern enough.
 438 # If it is, set am_missing_run to use it, otherwise, to nothing.
 439 AC_DEFUN([AM_MISSING_HAS_RUN],
 440 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
 441 AC_REQUIRE_AUX_FILE([missing])dnl
 442 if test x"${MISSING+set}" != xset; then
 443   case $am_aux_dir in
 444   *\ * | *\     *)
 445     MISSING="\${SHELL} \"$am_aux_dir/missing\"" ;;
 446   *)
 447     MISSING="\${SHELL} $am_aux_dir/missing" ;;
 448   esac
 449 fi
 450 # Use eval to expand $SHELL
 451 if eval "$MISSING --is-lightweight"; then
 452   am_missing_run="$MISSING "
 453 else
 454   am_missing_run=
 455   AC_MSG_WARN(['missing' script is too old or missing])
 456 fi
 457 ])
 458
 459 # Helper functions for option handling.                     -*- Autoconf -*-
 460
 461 # Copyright (C) 2001-2017 Free Software Foundation, Inc.
 462 #
 463 # This file is free software; the Free Software Foundation
 464 # gives unlimited permission to copy and/or distribute it,
 465 # with or without modifications, as long as this notice is preserved.
 466
 467 # _AM_MANGLE_OPTION(NAME)
 468 # -----------------------
 469 AC_DEFUN([_AM_MANGLE_OPTION],
 470 [[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
 471
 472 # _AM_SET_OPTION(NAME)
 473 # --------------------
 474 # Set option NAME.  Presently that only means defining a flag for this option.
 475 AC_DEFUN([_AM_SET_OPTION],
 476 [m4_define(_AM_MANGLE_OPTION([$1]), [1])])
 477
 478 # _AM_SET_OPTIONS(OPTIONS)
 479 # ------------------------
 480 # OPTIONS is a space-separated list of Automake options.
 481 AC_DEFUN([_AM_SET_OPTIONS],
 482 [m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
 483
 484 # _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
 485 # -------------------------------------------
 486 # Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
 487 AC_DEFUN([_AM_IF_OPTION],
 488 [m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
 489
 490 # Copyright (C) 1999-2017 Free Software Foundation, Inc.
 491 #
 492 # This file is free software; the Free Software Foundation
 493 # gives unlimited permission to copy and/or distribute it,
 494 # with or without modifications, as long as this notice is preserved.
 495
 496 # _AM_PROG_CC_C_O
 497 # ---------------
 498 # Like AC_PROG_CC_C_O, but changed for automake.  We rewrite AC_PROG_CC
 499 # to automatically call this.
 500 AC_DEFUN([_AM_PROG_CC_C_O],
 501 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
 502 AC_REQUIRE_AUX_FILE([compile])dnl
 503 AC_LANG_PUSH([C])dnl
 504 AC_CACHE_CHECK(
 505   [whether $CC understands -c and -o together],
 506   [am_cv_prog_cc_c_o],
 507   [AC_LANG_CONFTEST([AC_LANG_PROGRAM([])])
 508   # Make sure it works both with $CC and with simple cc.
 509   # Following AC_PROG_CC_C_O, we do the test twice because some
 510   # compilers refuse to overwrite an existing .o file with -o,
 511   # though they will create one.
 512   am_cv_prog_cc_c_o=yes
 513   for am_i in 1 2; do
 514     if AM_RUN_LOG([$CC -c conftest.$ac_ext -o conftest2.$ac_objext]) \
 515          && test -f conftest2.$ac_objext; then
 516       : OK
 517     else
 518       am_cv_prog_cc_c_o=no
 519       break
 520     fi
 521   done
 522   rm -f core conftest*
 523   unset am_i])
 524 if test "$am_cv_prog_cc_c_o" != yes; then
 525    # Losing compiler, so override with the script.
 526    # FIXME: It is wrong to rewrite CC.
 527    # But if we don't then we get into trouble of one sort or another.
 528    # A longer-term fix would be to have automake use am__CC in this case,
 529    # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
 530    CC="$am_aux_dir/compile $CC"
 531 fi
 532 AC_LANG_POP([C])])
 533
 534 # For backward compatibility.
 535 AC_DEFUN_ONCE([AM_PROG_CC_C_O], [AC_REQUIRE([AC_PROG_CC])])
 536
 537 # Copyright (C) 2001-2017 Free Software Foundation, Inc.
 538 #
 539 # This file is free software; the Free Software Foundation
 540 # gives unlimited permission to copy and/or distribute it,
 541 # with or without modifications, as long as this notice is preserved.
 542
 543 # AM_RUN_LOG(COMMAND)
 544 # -------------------
 545 # Run COMMAND, save the exit status in ac_status, and log it.
 546 # (This has been adapted from Autoconf's _AC_RUN_LOG macro.)
 547 AC_DEFUN([AM_RUN_LOG],
 548 [{ echo "$as_me:$LINENO: $1" >&AS_MESSAGE_LOG_FD
 549    ($1) >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD
 550    ac_status=$?
 551    echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
 552    (exit $ac_status); }])
 553
 554 # Check to make sure that the build environment is sane.    -*- Autoconf -*-
 555
 556 # Copyright (C) 1996-2017 Free Software Foundation, Inc.
 557 #
 558 # This file is free software; the Free Software Foundation
 559 # gives unlimited permission to copy and/or distribute it,
 560 # with or without modifications, as long as this notice is preserved.
 561
 562 # AM_SANITY_CHECK
 563 # ---------------
 564 AC_DEFUN([AM_SANITY_CHECK],
 565 [AC_MSG_CHECKING([whether build environment is sane])
 566 # Reject unsafe characters in $srcdir or the absolute working directory
 567 # name.  Accept space and tab only in the latter.
 568 am_lf='
 569 '
 570 case `pwd` in
 571   *[[\\\"\#\$\&\'\`$am_lf]]*)
 572     AC_MSG_ERROR([unsafe absolute working directory name]);;
 573 esac
 574 case $srcdir in
 575   *[[\\\"\#\$\&\'\`$am_lf\ \    ]]*)
 576     AC_MSG_ERROR([unsafe srcdir value: '$srcdir']);;
 577 esac
 578
 579 # Do 'set' in a subshell so we don't clobber the current shell's
 580 # arguments.  Must try -L first in case configure is actually a
 581 # symlink; some systems play weird games with the mod time of symlinks
 582 # (eg FreeBSD returns the mod time of the symlink's containing
 583 # directory).
 584 if (
 585    am_has_slept=no
 586    for am_try in 1 2; do
 587      echo "timestamp, slept: $am_has_slept" > conftest.file
 588      set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
 589      if test "$[*]" = "X"; then
 590         # -L didn't work.
 591         set X `ls -t "$srcdir/configure" conftest.file`
 592      fi
 593      if test "$[*]" != "X $srcdir/configure conftest.file" \
 594         && test "$[*]" != "X conftest.file $srcdir/configure"; then
 595
 596         # If neither matched, then we have a broken ls.  This can happen
 597         # if, for instance, CONFIG_SHELL is bash and it inherits a
 598         # broken ls alias from the environment.  This has actually
 599         # happened.  Such a system could not be considered "sane".
 600         AC_MSG_ERROR([ls -t appears to fail.  Make sure there is not a broken
 601   alias in your environment])
 602      fi
 603      if test "$[2]" = conftest.file || test $am_try -eq 2; then
 604        break
 605      fi
 606      # Just in case.
 607      sleep 1
 608      am_has_slept=yes
 609    done
 610    test "$[2]" = conftest.file
 611    )
 612 then
 613    # Ok.
 614    :
 615 else
 616    AC_MSG_ERROR([newly created file is older than distributed files!
 617 Check your system clock])
 618 fi
 619 AC_MSG_RESULT([yes])
 620 # If we didn't sleep, we still need to ensure time stamps of config.status and
 621 # generated files are strictly newer.
 622 am_sleep_pid=
 623 if grep 'slept: no' conftest.file >/dev/null 2>&1; then
 624   ( sleep 1 ) &
 625   am_sleep_pid=$!
 626 fi
 627 AC_CONFIG_COMMANDS_PRE(
 628   [AC_MSG_CHECKING([that generated files are newer than configure])
 629    if test -n "$am_sleep_pid"; then
 630      # Hide warnings about reused PIDs.
 631      wait $am_sleep_pid 2>/dev/null
 632    fi
 633    AC_MSG_RESULT([done])])
 634 rm -f conftest.file
 635 ])
 636
 637 # Copyright (C) 2009-2017 Free Software Foundation, Inc.
 638 #
 639 # This file is free software; the Free Software Foundation
 640 # gives unlimited permission to copy and/or distribute it,
 641 # with or without modifications, as long as this notice is preserved.
 642
 643 # AM_SILENT_RULES([DEFAULT])
 644 # --------------------------
 645 # Enable less verbose build rules; with the default set to DEFAULT
 646 # ("yes" being less verbose, "no" or empty being verbose).
 647 AC_DEFUN([AM_SILENT_RULES],
 648 [AC_ARG_ENABLE([silent-rules], [dnl
 649 AS_HELP_STRING(
 650   [--enable-silent-rules],
 651   [less verbose build output (undo: "make V=1")])
 652 AS_HELP_STRING(
 653   [--disable-silent-rules],
 654   [verbose build output (undo: "make V=0")])dnl
 655 ])
 656 case $enable_silent_rules in @%:@ (((
 657   yes) AM_DEFAULT_VERBOSITY=0;;
 658    no) AM_DEFAULT_VERBOSITY=1;;
 659     *) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);;
 660 esac
 661 dnl
 662 dnl A few 'make' implementations (e.g., NonStop OS and NextStep)
 663 dnl do not support nested variable expansions.
 664 dnl See automake bug#9928 and bug#10237.
 665 am_make=${MAKE-make}
 666 AC_CACHE_CHECK([whether $am_make supports nested variables],
 667    [am_cv_make_support_nested_variables],
 668    [if AS_ECHO([['TRUE=$(BAR$(V))
 669 BAR0=false
 670 BAR1=true
 671 V=1
 672 am__doit:
 673         @$(TRUE)
 674 .PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then
 675   am_cv_make_support_nested_variables=yes
 676 else
 677   am_cv_make_support_nested_variables=no
 678 fi])
 679 if test $am_cv_make_support_nested_variables = yes; then
 680   dnl Using '$V' instead of '$(V)' breaks IRIX make.
 681   AM_V='$(V)'
 682   AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
 683 else
 684   AM_V=$AM_DEFAULT_VERBOSITY
 685   AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
 686 fi
 687 AC_SUBST([AM_V])dnl
 688 AM_SUBST_NOTMAKE([AM_V])dnl
 689 AC_SUBST([AM_DEFAULT_V])dnl
 690 AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl
 691 AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
 692 AM_BACKSLASH='\'
 693 AC_SUBST([AM_BACKSLASH])dnl
 694 _AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
 695 ])
 696
 697 # Copyright (C) 2001-2017 Free Software Foundation, Inc.
 698 #
 699 # This file is free software; the Free Software Foundation
 700 # gives unlimited permission to copy and/or distribute it,
 701 # with or without modifications, as long as this notice is preserved.
 702
 703 # AM_PROG_INSTALL_STRIP
 704 # ---------------------
 705 # One issue with vendor 'install' (even GNU) is that you can't
 706 # specify the program used to strip binaries.  This is especially
 707 # annoying in cross-compiling environments, where the build's strip
 708 # is unlikely to handle the host's binaries.
 709 # Fortunately install-sh will honor a STRIPPROG variable, so we
 710 # always use install-sh in "make install-strip", and initialize
 711 # STRIPPROG with the value of the STRIP variable (set by the user).
 712 AC_DEFUN([AM_PROG_INSTALL_STRIP],
 713 [AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
 714 # Installed binaries are usually stripped using 'strip' when the user
 715 # run "make install-strip".  However 'strip' might not be the right
 716 # tool to use in cross-compilation environments, therefore Automake
 717 # will honor the 'STRIP' environment variable to overrule this program.
 718 dnl Don't test for $cross_compiling = yes, because it might be 'maybe'.
 719 if test "$cross_compiling" != no; then
 720   AC_CHECK_TOOL([STRIP], [strip], :)
 721 fi
 722 INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
 723 AC_SUBST([INSTALL_STRIP_PROGRAM])])
 724
 725 # Copyright (C) 2006-2017 Free Software Foundation, Inc.
 726 #
 727 # This file is free software; the Free Software Foundation
 728 # gives unlimited permission to copy and/or distribute it,
 729 # with or without modifications, as long as this notice is preserved.
 730
 731 # _AM_SUBST_NOTMAKE(VARIABLE)
 732 # ---------------------------
 733 # Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
 734 # This macro is traced by Automake.
 735 AC_DEFUN([_AM_SUBST_NOTMAKE])
 736
 737 # AM_SUBST_NOTMAKE(VARIABLE)
 738 # --------------------------
 739 # Public sister of _AM_SUBST_NOTMAKE.
 740 AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
 741
 742 # Check how to create a tarball.                            -*- Autoconf -*-
 743
 744 # Copyright (C) 2004-2017 Free Software Foundation, Inc.
 745 #
 746 # This file is free software; the Free Software Foundation
 747 # gives unlimited permission to copy and/or distribute it,
 748 # with or without modifications, as long as this notice is preserved.
 749
 750 # _AM_PROG_TAR(FORMAT)
 751 # --------------------
 752 # Check how to create a tarball in format FORMAT.
 753 # FORMAT should be one of 'v7', 'ustar', or 'pax'.
 754 #
 755 # Substitute a variable $(am__tar) that is a command
 756 # writing to stdout a FORMAT-tarball containing the directory
 757 # $tardir.
 758 #     tardir=directory && $(am__tar) > result.tar
 759 #
 760 # Substitute a variable $(am__untar) that extract such
 761 # a tarball read from stdin.
 762 #     $(am__untar) < result.tar
 763 #
 764 AC_DEFUN([_AM_PROG_TAR],
 765 [# Always define AMTAR for backward compatibility.  Yes, it's still used
 766 # in the wild :-(  We should find a proper way to deprecate it ...
 767 AC_SUBST([AMTAR], ['$${TAR-tar}'])
 768
 769 # We'll loop over all known methods to create a tar archive until one works.
 770 _am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
 771
 772 m4_if([$1], [v7],
 773   [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],
 774
 775   [m4_case([$1],
 776     [ustar],
 777      [# The POSIX 1988 'ustar' format is defined with fixed-size fields.
 778       # There is notably a 21 bits limit for the UID and the GID.  In fact,
 779       # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343
 780       # and bug#13588).
 781       am_max_uid=2097151 # 2^21 - 1
 782       am_max_gid=$am_max_uid
 783       # The $UID and $GID variables are not portable, so we need to resort
 784       # to the POSIX-mandated id(1) utility.  Errors in the 'id' calls
 785       # below are definitely unexpected, so allow the users to see them
 786       # (that is, avoid stderr redirection).
 787       am_uid=`id -u || echo unknown`
 788       am_gid=`id -g || echo unknown`
 789       AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format])
 790       if test $am_uid -le $am_max_uid; then
 791          AC_MSG_RESULT([yes])
 792       else
 793          AC_MSG_RESULT([no])
 794          _am_tools=none
 795       fi
 796       AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format])
 797       if test $am_gid -le $am_max_gid; then
 798          AC_MSG_RESULT([yes])
 799       else
 800         AC_MSG_RESULT([no])
 801         _am_tools=none
 802       fi],
 803
 804   [pax],
 805     [],
 806
 807   [m4_fatal([Unknown tar format])])
 808
 809   AC_MSG_CHECKING([how to create a $1 tar archive])
 810
 811   # Go ahead even if we have the value already cached.  We do so because we
 812   # need to set the values for the 'am__tar' and 'am__untar' variables.
 813   _am_tools=${am_cv_prog_tar_$1-$_am_tools}
 814
 815   for _am_tool in $_am_tools; do
 816     case $_am_tool in
 817     gnutar)
 818       for _am_tar in tar gnutar gtar; do
 819         AM_RUN_LOG([$_am_tar --version]) && break
 820       done
 821       am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
 822       am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
 823       am__untar="$_am_tar -xf -"
 824       ;;
 825     plaintar)
 826       # Must skip GNU tar: if it does not support --format= it doesn't create
 827       # ustar tarball either.
 828       (tar --version) >/dev/null 2>&1 && continue
 829       am__tar='tar chf - "$$tardir"'
 830       am__tar_='tar chf - "$tardir"'
 831       am__untar='tar xf -'
 832       ;;
 833     pax)
 834       am__tar='pax -L -x $1 -w "$$tardir"'
 835       am__tar_='pax -L -x $1 -w "$tardir"'
 836       am__untar='pax -r'
 837       ;;
 838     cpio)
 839       am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
 840       am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
 841       am__untar='cpio -i -H $1 -d'
 842       ;;
 843     none)
 844       am__tar=false
 845       am__tar_=false
 846       am__untar=false
 847       ;;
 848     esac
 849
 850     # If the value was cached, stop now.  We just wanted to have am__tar
 851     # and am__untar set.
 852     test -n "${am_cv_prog_tar_$1}" && break
 853
 854     # tar/untar a dummy directory, and stop if the command works.
 855     rm -rf conftest.dir
 856     mkdir conftest.dir
 857     echo GrepMe > conftest.dir/file
 858     AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
 859     rm -rf conftest.dir
 860     if test -s conftest.tar; then
 861       AM_RUN_LOG([$am__untar <conftest.tar])
 862       AM_RUN_LOG([cat conftest.dir/file])
 863       grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
 864     fi
 865   done
 866   rm -rf conftest.dir
 867
 868   AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
 869   AC_MSG_RESULT([$am_cv_prog_tar_$1])])
 870
 871 AC_SUBST([am__tar])
 872 AC_SUBST([am__untar])
 873 ]) # _AM_PROG_TAR
 874
 875 m4_include([../config/acx.m4])
 876 m4_include([../config/lead-dot.m4])
 877 m4_include([../config/multi.m4])
 878 m4_include([../config/override.m4])
 879 m4_include([../libtool.m4])
 880 m4_include([../ltoptions.m4])
 881 m4_include([../ltsugar.m4])
 882 m4_include([../ltversion.m4])
 883 m4_include([../lt~obsolete.m4])
 884 m4_include([acinclude.m4])