aclocal.m4

   1 # generated automatically by aclocal 1.16.1 -*- Autoconf -*-
   2
   3 # Copyright (C) 1996-2018 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) 2002-2018 Free Software Foundation, Inc.
  24 #
  25 # This file is free software; the Free Software Foundation
  26 # gives unlimited permission to copy and/or distribute it,
  27 # with or without modifications, as long as this notice is preserved.
  28
  29 # AM_AUTOMAKE_VERSION(VERSION)
  30 # ----------------------------
  31 # Automake X.Y traces this macro to ensure aclocal.m4 has been
  32 # generated from the m4 files accompanying Automake X.Y.
  33 # (This private macro should not be called outside this file.)
  34 AC_DEFUN([AM_AUTOMAKE_VERSION],
  35 [am__api_version='1.16'
  36 dnl Some users find AM_AUTOMAKE_VERSION and mistake it for a way to
  37 dnl require some minimum version.  Point them to the right macro.
  38 m4_if([$1], [1.16.1], [],
  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([1.16.1])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) 2001-2018 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_COND_IF                                            -*- Autoconf -*-
 112
 113 # Copyright (C) 2008-2018 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_COND_IF
 120 # _AM_COND_ELSE
 121 # _AM_COND_ENDIF
 122 # --------------
 123 # These macros are only used for tracing.
 124 m4_define([_AM_COND_IF])
 125 m4_define([_AM_COND_ELSE])
 126 m4_define([_AM_COND_ENDIF])
 127
 128 # AM_COND_IF(COND, [IF-TRUE], [IF-FALSE])
 129 # ---------------------------------------
 130 # If the shell condition COND is true, execute IF-TRUE, otherwise execute
 131 # IF-FALSE.  Allow automake to learn about conditional instantiating macros
 132 # (the AC_CONFIG_FOOS).
 133 AC_DEFUN([AM_COND_IF],
 134 [m4_ifndef([_AM_COND_VALUE_$1],
 135            [m4_fatal([$0: no such condition "$1"])])dnl
 136 _AM_COND_IF([$1])dnl
 137 if test -z "$$1_TRUE"; then :
 138   m4_n([$2])[]dnl
 139 m4_ifval([$3],
 140 [_AM_COND_ELSE([$1])dnl
 141 else
 142   $3
 143 ])dnl
 144 _AM_COND_ENDIF([$1])dnl
 145 fi[]dnl
 146 ])
 147
 148 # AM_CONDITIONAL                                            -*- Autoconf -*-
 149
 150 # Copyright (C) 1997-2018 Free Software Foundation, Inc.
 151 #
 152 # This file is free software; the Free Software Foundation
 153 # gives unlimited permission to copy and/or distribute it,
 154 # with or without modifications, as long as this notice is preserved.
 155
 156 # AM_CONDITIONAL(NAME, SHELL-CONDITION)
 157 # -------------------------------------
 158 # Define a conditional.
 159 AC_DEFUN([AM_CONDITIONAL],
 160 [AC_PREREQ([2.52])dnl
 161  m4_if([$1], [TRUE],  [AC_FATAL([$0: invalid condition: $1])],
 162        [$1], [FALSE], [AC_FATAL([$0: invalid condition: $1])])dnl
 163 AC_SUBST([$1_TRUE])dnl
 164 AC_SUBST([$1_FALSE])dnl
 165 _AM_SUBST_NOTMAKE([$1_TRUE])dnl
 166 _AM_SUBST_NOTMAKE([$1_FALSE])dnl
 167 m4_define([_AM_COND_VALUE_$1], [$2])dnl
 168 if $2; then
 169   $1_TRUE=
 170   $1_FALSE='#'
 171 else
 172   $1_TRUE='#'
 173   $1_FALSE=
 174 fi
 175 AC_CONFIG_COMMANDS_PRE(
 176 [if test -z "${$1_TRUE}" && test -z "${$1_FALSE}"; then
 177   AC_MSG_ERROR([[conditional "$1" was never defined.
 178 Usually this means the macro was only invoked conditionally.]])
 179 fi])])
 180
 181 # Copyright (C) 1999-2018 Free Software Foundation, Inc.
 182 #
 183 # This file is free software; the Free Software Foundation
 184 # gives unlimited permission to copy and/or distribute it,
 185 # with or without modifications, as long as this notice is preserved.
 186
 187
 188 # There are a few dirty hacks below to avoid letting 'AC_PROG_CC' be
 189 # written in clear, in which case automake, when reading aclocal.m4,
 190 # will think it sees a *use*, and therefore will trigger all it's
 191 # C support machinery.  Also note that it means that autoscan, seeing
 192 # CC etc. in the Makefile, will ask for an AC_PROG_CC use...
 193
 194
 195 # _AM_DEPENDENCIES(NAME)
 196 # ----------------------
 197 # See how the compiler implements dependency checking.
 198 # NAME is "CC", "CXX", "OBJC", "OBJCXX", "UPC", or "GJC".
 199 # We try a few techniques and use that to set a single cache variable.
 200 #
 201 # We don't AC_REQUIRE the corresponding AC_PROG_CC since the latter was
 202 # modified to invoke _AM_DEPENDENCIES(CC); we would have a circular
 203 # dependency, and given that the user is not expected to run this macro,
 204 # just rely on AC_PROG_CC.
 205 AC_DEFUN([_AM_DEPENDENCIES],
 206 [AC_REQUIRE([AM_SET_DEPDIR])dnl
 207 AC_REQUIRE([AM_OUTPUT_DEPENDENCY_COMMANDS])dnl
 208 AC_REQUIRE([AM_MAKE_INCLUDE])dnl
 209 AC_REQUIRE([AM_DEP_TRACK])dnl
 210
 211 m4_if([$1], [CC],   [depcc="$CC"   am_compiler_list=],
 212       [$1], [CXX],  [depcc="$CXX"  am_compiler_list=],
 213       [$1], [OBJC], [depcc="$OBJC" am_compiler_list='gcc3 gcc'],
 214       [$1], [OBJCXX], [depcc="$OBJCXX" am_compiler_list='gcc3 gcc'],
 215       [$1], [UPC],  [depcc="$UPC"  am_compiler_list=],
 216       [$1], [GCJ],  [depcc="$GCJ"  am_compiler_list='gcc3 gcc'],
 217                     [depcc="$$1"   am_compiler_list=])
 218
 219 AC_CACHE_CHECK([dependency style of $depcc],
 220                [am_cv_$1_dependencies_compiler_type],
 221 [if test -z "$AMDEP_TRUE" && test -f "$am_depcomp"; then
 222   # We make a subdir and do the tests there.  Otherwise we can end up
 223   # making bogus files that we don't know about and never remove.  For
 224   # instance it was reported that on HP-UX the gcc test will end up
 225   # making a dummy file named 'D' -- because '-MD' means "put the output
 226   # in D".
 227   rm -rf conftest.dir
 228   mkdir conftest.dir
 229   # Copy depcomp to subdir because otherwise we won't find it if we're
 230   # using a relative directory.
 231   cp "$am_depcomp" conftest.dir
 232   cd conftest.dir
 233   # We will build objects and dependencies in a subdirectory because
 234   # it helps to detect inapplicable dependency modes.  For instance
 235   # both Tru64's cc and ICC support -MD to output dependencies as a
 236   # side effect of compilation, but ICC will put the dependencies in
 237   # the current directory while Tru64 will put them in the object
 238   # directory.
 239   mkdir sub
 240
 241   am_cv_$1_dependencies_compiler_type=none
 242   if test "$am_compiler_list" = ""; then
 243      am_compiler_list=`sed -n ['s/^#*\([a-zA-Z0-9]*\))$/\1/p'] < ./depcomp`
 244   fi
 245   am__universal=false
 246   m4_case([$1], [CC],
 247     [case " $depcc " in #(
 248      *\ -arch\ *\ -arch\ *) am__universal=true ;;
 249      esac],
 250     [CXX],
 251     [case " $depcc " in #(
 252      *\ -arch\ *\ -arch\ *) am__universal=true ;;
 253      esac])
 254
 255   for depmode in $am_compiler_list; do
 256     # Setup a source with many dependencies, because some compilers
 257     # like to wrap large dependency lists on column 80 (with \), and
 258     # we should not choose a depcomp mode which is confused by this.
 259     #
 260     # We need to recreate these files for each test, as the compiler may
 261     # overwrite some of them when testing with obscure command lines.
 262     # This happens at least with the AIX C compiler.
 263     : > sub/conftest.c
 264     for i in 1 2 3 4 5 6; do
 265       echo '#include "conftst'$i'.h"' >> sub/conftest.c
 266       # Using ": > sub/conftst$i.h" creates only sub/conftst1.h with
 267       # Solaris 10 /bin/sh.
 268       echo '/* dummy */' > sub/conftst$i.h
 269     done
 270     echo "${am__include} ${am__quote}sub/conftest.Po${am__quote}" > confmf
 271
 272     # We check with '-c' and '-o' for the sake of the "dashmstdout"
 273     # mode.  It turns out that the SunPro C++ compiler does not properly
 274     # handle '-M -o', and we need to detect this.  Also, some Intel
 275     # versions had trouble with output in subdirs.
 276     am__obj=sub/conftest.${OBJEXT-o}
 277     am__minus_obj="-o $am__obj"
 278     case $depmode in
 279     gcc)
 280       # This depmode causes a compiler race in universal mode.
 281       test "$am__universal" = false || continue
 282       ;;
 283     nosideeffect)
 284       # After this tag, mechanisms are not by side-effect, so they'll
 285       # only be used when explicitly requested.
 286       if test "x$enable_dependency_tracking" = xyes; then
 287         continue
 288       else
 289         break
 290       fi
 291       ;;
 292     msvc7 | msvc7msys | msvisualcpp | msvcmsys)
 293       # This compiler won't grok '-c -o', but also, the minuso test has
 294       # not run yet.  These depmodes are late enough in the game, and
 295       # so weak that their functioning should not be impacted.
 296       am__obj=conftest.${OBJEXT-o}
 297       am__minus_obj=
 298       ;;
 299     none) break ;;
 300     esac
 301     if depmode=$depmode \
 302        source=sub/conftest.c object=$am__obj \
 303        depfile=sub/conftest.Po tmpdepfile=sub/conftest.TPo \
 304        $SHELL ./depcomp $depcc -c $am__minus_obj sub/conftest.c \
 305          >/dev/null 2>conftest.err &&
 306        grep sub/conftst1.h sub/conftest.Po > /dev/null 2>&1 &&
 307        grep sub/conftst6.h sub/conftest.Po > /dev/null 2>&1 &&
 308        grep $am__obj sub/conftest.Po > /dev/null 2>&1 &&
 309        ${MAKE-make} -s -f confmf > /dev/null 2>&1; then
 310       # icc doesn't choke on unknown options, it will just issue warnings
 311       # or remarks (even with -Werror).  So we grep stderr for any message
 312       # that says an option was ignored or not supported.
 313       # When given -MP, icc 7.0 and 7.1 complain thusly:
 314       #   icc: Command line warning: ignoring option '-M'; no argument required
 315       # The diagnosis changed in icc 8.0:
 316       #   icc: Command line remark: option '-MP' not supported
 317       if (grep 'ignoring option' conftest.err ||
 318           grep 'not supported' conftest.err) >/dev/null 2>&1; then :; else
 319         am_cv_$1_dependencies_compiler_type=$depmode
 320         break
 321       fi
 322     fi
 323   done
 324
 325   cd ..
 326   rm -rf conftest.dir
 327 else
 328   am_cv_$1_dependencies_compiler_type=none
 329 fi
 330 ])
 331 AC_SUBST([$1DEPMODE], [depmode=$am_cv_$1_dependencies_compiler_type])
 332 AM_CONDITIONAL([am__fastdep$1], [
 333   test "x$enable_dependency_tracking" != xno \
 334   && test "$am_cv_$1_dependencies_compiler_type" = gcc3])
 335 ])
 336
 337
 338 # AM_SET_DEPDIR
 339 # -------------
 340 # Choose a directory name for dependency files.
 341 # This macro is AC_REQUIREd in _AM_DEPENDENCIES.
 342 AC_DEFUN([AM_SET_DEPDIR],
 343 [AC_REQUIRE([AM_SET_LEADING_DOT])dnl
 344 AC_SUBST([DEPDIR], ["${am__leading_dot}deps"])dnl
 345 ])
 346
 347
 348 # AM_DEP_TRACK
 349 # ------------
 350 AC_DEFUN([AM_DEP_TRACK],
 351 [AC_ARG_ENABLE([dependency-tracking], [dnl
 352 AS_HELP_STRING(
 353   [--enable-dependency-tracking],
 354   [do not reject slow dependency extractors])
 355 AS_HELP_STRING(
 356   [--disable-dependency-tracking],
 357   [speeds up one-time build])])
 358 if test "x$enable_dependency_tracking" != xno; then
 359   am_depcomp="$ac_aux_dir/depcomp"
 360   AMDEPBACKSLASH='\'
 361   am__nodep='_no'
 362 fi
 363 AM_CONDITIONAL([AMDEP], [test "x$enable_dependency_tracking" != xno])
 364 AC_SUBST([AMDEPBACKSLASH])dnl
 365 _AM_SUBST_NOTMAKE([AMDEPBACKSLASH])dnl
 366 AC_SUBST([am__nodep])dnl
 367 _AM_SUBST_NOTMAKE([am__nodep])dnl
 368 ])
 369
 370 # Generate code to set up dependency tracking.              -*- Autoconf -*-
 371
 372 # Copyright (C) 1999-2018 Free Software Foundation, Inc.
 373 #
 374 # This file is free software; the Free Software Foundation
 375 # gives unlimited permission to copy and/or distribute it,
 376 # with or without modifications, as long as this notice is preserved.
 377
 378 # _AM_OUTPUT_DEPENDENCY_COMMANDS
 379 # ------------------------------
 380 AC_DEFUN([_AM_OUTPUT_DEPENDENCY_COMMANDS],
 381 [{
 382   # Older Autoconf quotes --file arguments for eval, but not when files
 383   # are listed without --file.  Let's play safe and only enable the eval
 384   # if we detect the quoting.
 385   # TODO: see whether this extra hack can be removed once we start
 386   # requiring Autoconf 2.70 or later.
 387   AS_CASE([$CONFIG_FILES],
 388           [*\'*], [eval set x "$CONFIG_FILES"],
 389           [*], [set x $CONFIG_FILES])
 390   shift
 391   # Used to flag and report bootstrapping failures.
 392   am_rc=0
 393   for am_mf
 394   do
 395     # Strip MF so we end up with the name of the file.
 396     am_mf=`AS_ECHO(["$am_mf"]) | sed -e 's/:.*$//'`
 397     # Check whether this is an Automake generated Makefile which includes
 398     # dependency-tracking related rules and includes.
 399     # Grep'ing the whole file directly is not great: AIX grep has a line
 400     # limit of 2048, but all sed's we know have understand at least 4000.
 401     sed -n 's,^am--depfiles:.*,X,p' "$am_mf" | grep X >/dev/null 2>&1 \
 402       || continue
 403     am_dirpart=`AS_DIRNAME(["$am_mf"])`
 404     am_filepart=`AS_BASENAME(["$am_mf"])`
 405     AM_RUN_LOG([cd "$am_dirpart" \
 406       && sed -e '/# am--include-marker/d' "$am_filepart" \
 407         | $MAKE -f - am--depfiles]) || am_rc=$?
 408   done
 409   if test $am_rc -ne 0; then
 410     AC_MSG_FAILURE([Something went wrong bootstrapping makefile fragments
 411     for automatic dependency tracking.  Try re-running configure with the
 412     '--disable-dependency-tracking' option to at least be able to build
 413     the package (albeit without support for automatic dependency tracking).])
 414   fi
 415   AS_UNSET([am_dirpart])
 416   AS_UNSET([am_filepart])
 417   AS_UNSET([am_mf])
 418   AS_UNSET([am_rc])
 419   rm -f conftest-deps.mk
 420 }
 421 ])# _AM_OUTPUT_DEPENDENCY_COMMANDS
 422
 423
 424 # AM_OUTPUT_DEPENDENCY_COMMANDS
 425 # -----------------------------
 426 # This macro should only be invoked once -- use via AC_REQUIRE.
 427 #
 428 # This code is only required when automatic dependency tracking is enabled.
 429 # This creates each '.Po' and '.Plo' makefile fragment that we'll need in
 430 # order to bootstrap the dependency handling code.
 431 AC_DEFUN([AM_OUTPUT_DEPENDENCY_COMMANDS],
 432 [AC_CONFIG_COMMANDS([depfiles],
 433      [test x"$AMDEP_TRUE" != x"" || _AM_OUTPUT_DEPENDENCY_COMMANDS],
 434      [AMDEP_TRUE="$AMDEP_TRUE" MAKE="${MAKE-make}"])])
 435
 436 # Do all the work for Automake.                             -*- Autoconf -*-
 437
 438 # Copyright (C) 1996-2018 Free Software Foundation, Inc.
 439 #
 440 # This file is free software; the Free Software Foundation
 441 # gives unlimited permission to copy and/or distribute it,
 442 # with or without modifications, as long as this notice is preserved.
 443
 444 # This macro actually does too much.  Some checks are only needed if
 445 # your package does certain things.  But this isn't really a big deal.
 446
 447 dnl Redefine AC_PROG_CC to automatically invoke _AM_PROG_CC_C_O.
 448 m4_define([AC_PROG_CC],
 449 m4_defn([AC_PROG_CC])
 450 [_AM_PROG_CC_C_O
 451 ])
 452
 453 # AM_INIT_AUTOMAKE(PACKAGE, VERSION, [NO-DEFINE])
 454 # AM_INIT_AUTOMAKE([OPTIONS])
 455 # -----------------------------------------------
 456 # The call with PACKAGE and VERSION arguments is the old style
 457 # call (pre autoconf-2.50), which is being phased out.  PACKAGE
 458 # and VERSION should now be passed to AC_INIT and removed from
 459 # the call to AM_INIT_AUTOMAKE.
 460 # We support both call styles for the transition.  After
 461 # the next Automake release, Autoconf can make the AC_INIT
 462 # arguments mandatory, and then we can depend on a new Autoconf
 463 # release and drop the old call support.
 464 AC_DEFUN([AM_INIT_AUTOMAKE],
 465 [AC_PREREQ([2.65])dnl
 466 dnl Autoconf wants to disallow AM_ names.  We explicitly allow
 467 dnl the ones we care about.
 468 m4_pattern_allow([^AM_[A-Z]+FLAGS$])dnl
 469 AC_REQUIRE([AM_SET_CURRENT_AUTOMAKE_VERSION])dnl
 470 AC_REQUIRE([AC_PROG_INSTALL])dnl
 471 if test "`cd $srcdir && pwd`" != "`pwd`"; then
 472   # Use -I$(srcdir) only when $(srcdir) != ., so that make's output
 473   # is not polluted with repeated "-I."
 474   AC_SUBST([am__isrc], [' -I$(srcdir)'])_AM_SUBST_NOTMAKE([am__isrc])dnl
 475   # test to see if srcdir already configured
 476   if test -f $srcdir/config.status; then
 477     AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
 478   fi
 479 fi
 480
 481 # test whether we have cygpath
 482 if test -z "$CYGPATH_W"; then
 483   if (cygpath --version) >/dev/null 2>/dev/null; then
 484     CYGPATH_W='cygpath -w'
 485   else
 486     CYGPATH_W=echo
 487   fi
 488 fi
 489 AC_SUBST([CYGPATH_W])
 490
 491 # Define the identity of the package.
 492 dnl Distinguish between old-style and new-style calls.
 493 m4_ifval([$2],
 494 [AC_DIAGNOSE([obsolete],
 495              [$0: two- and three-arguments forms are deprecated.])
 496 m4_ifval([$3], [_AM_SET_OPTION([no-define])])dnl
 497  AC_SUBST([PACKAGE], [$1])dnl
 498  AC_SUBST([VERSION], [$2])],
 499 [_AM_SET_OPTIONS([$1])dnl
 500 dnl Diagnose old-style AC_INIT with new-style AM_AUTOMAKE_INIT.
 501 m4_if(
 502   m4_ifdef([AC_PACKAGE_NAME], [ok]):m4_ifdef([AC_PACKAGE_VERSION], [ok]),
 503   [ok:ok],,
 504   [m4_fatal([AC_INIT should be called with package and version arguments])])dnl
 505  AC_SUBST([PACKAGE], ['AC_PACKAGE_TARNAME'])dnl
 506  AC_SUBST([VERSION], ['AC_PACKAGE_VERSION'])])dnl
 507
 508 _AM_IF_OPTION([no-define],,
 509 [AC_DEFINE_UNQUOTED([PACKAGE], ["$PACKAGE"], [Name of package])
 510  AC_DEFINE_UNQUOTED([VERSION], ["$VERSION"], [Version number of package])])dnl
 511
 512 # Some tools Automake needs.
 513 AC_REQUIRE([AM_SANITY_CHECK])dnl
 514 AC_REQUIRE([AC_ARG_PROGRAM])dnl
 515 AM_MISSING_PROG([ACLOCAL], [aclocal-${am__api_version}])
 516 AM_MISSING_PROG([AUTOCONF], [autoconf])
 517 AM_MISSING_PROG([AUTOMAKE], [automake-${am__api_version}])
 518 AM_MISSING_PROG([AUTOHEADER], [autoheader])
 519 AM_MISSING_PROG([MAKEINFO], [makeinfo])
 520 AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
 521 AC_REQUIRE([AM_PROG_INSTALL_STRIP])dnl
 522 AC_REQUIRE([AC_PROG_MKDIR_P])dnl
 523 # For better backward compatibility.  To be removed once Automake 1.9.x
 524 # dies out for good.  For more background, see:
 525 # <https://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
 526 # <https://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
 527 AC_SUBST([mkdir_p], ['$(MKDIR_P)'])
 528 # We need awk for the "check" target (and possibly the TAP driver).  The
 529 # system "awk" is bad on some platforms.
 530 AC_REQUIRE([AC_PROG_AWK])dnl
 531 AC_REQUIRE([AC_PROG_MAKE_SET])dnl
 532 AC_REQUIRE([AM_SET_LEADING_DOT])dnl
 533 _AM_IF_OPTION([tar-ustar], [_AM_PROG_TAR([ustar])],
 534               [_AM_IF_OPTION([tar-pax], [_AM_PROG_TAR([pax])],
 535                              [_AM_PROG_TAR([v7])])])
 536 _AM_IF_OPTION([no-dependencies],,
 537 [AC_PROVIDE_IFELSE([AC_PROG_CC],
 538                   [_AM_DEPENDENCIES([CC])],
 539                   [m4_define([AC_PROG_CC],
 540                              m4_defn([AC_PROG_CC])[_AM_DEPENDENCIES([CC])])])dnl
 541 AC_PROVIDE_IFELSE([AC_PROG_CXX],
 542                   [_AM_DEPENDENCIES([CXX])],
 543                   [m4_define([AC_PROG_CXX],
 544                              m4_defn([AC_PROG_CXX])[_AM_DEPENDENCIES([CXX])])])dnl
 545 AC_PROVIDE_IFELSE([AC_PROG_OBJC],
 546                   [_AM_DEPENDENCIES([OBJC])],
 547                   [m4_define([AC_PROG_OBJC],
 548                              m4_defn([AC_PROG_OBJC])[_AM_DEPENDENCIES([OBJC])])])dnl
 549 AC_PROVIDE_IFELSE([AC_PROG_OBJCXX],
 550                   [_AM_DEPENDENCIES([OBJCXX])],
 551                   [m4_define([AC_PROG_OBJCXX],
 552                              m4_defn([AC_PROG_OBJCXX])[_AM_DEPENDENCIES([OBJCXX])])])dnl
 553 ])
 554 AC_REQUIRE([AM_SILENT_RULES])dnl
 555 dnl The testsuite driver may need to know about EXEEXT, so add the
 556 dnl 'am__EXEEXT' conditional if _AM_COMPILER_EXEEXT was seen.  This
 557 dnl macro is hooked onto _AC_COMPILER_EXEEXT early, see below.
 558 AC_CONFIG_COMMANDS_PRE(dnl
 559 [m4_provide_if([_AM_COMPILER_EXEEXT],
 560   [AM_CONDITIONAL([am__EXEEXT], [test -n "$EXEEXT"])])])dnl
 561
 562 # POSIX will say in a future version that running "rm -f" with no argument
 563 # is OK; and we want to be able to make that assumption in our Makefile
 564 # recipes.  So use an aggressive probe to check that the usage we want is
 565 # actually supported "in the wild" to an acceptable degree.
 566 # See automake bug#10828.
 567 # To make any issue more visible, cause the running configure to be aborted
 568 # by default if the 'rm' program in use doesn't match our expectations; the
 569 # user can still override this though.
 570 if rm -f && rm -fr && rm -rf; then : OK; else
 571   cat >&2 <<'END'
 572 Oops!
 573
 574 Your 'rm' program seems unable to run without file operands specified
 575 on the command line, even when the '-f' option is present.  This is contrary
 576 to the behaviour of most rm programs out there, and not conforming with
 577 the upcoming POSIX standard: <http://austingroupbugs.net/view.php?id=542>
 578
 579 Please tell bug-automake@gnu.org about your system, including the value
 580 of your $PATH and any error possibly output before this message.  This
 581 can help us improve future automake versions.
 582
 583 END
 584   if test x"$ACCEPT_INFERIOR_RM_PROGRAM" = x"yes"; then
 585     echo 'Configuration will proceed anyway, since you have set the' >&2
 586     echo 'ACCEPT_INFERIOR_RM_PROGRAM variable to "yes"' >&2
 587     echo >&2
 588   else
 589     cat >&2 <<'END'
 590 Aborting the configuration process, to ensure you take notice of the issue.
 591
 592 You can download and install GNU coreutils to get an 'rm' implementation
 593 that behaves properly: <https://www.gnu.org/software/coreutils/>.
 594
 595 If you want to complete the configuration process using your problematic
 596 'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM
 597 to "yes", and re-run configure.
 598
 599 END
 600     AC_MSG_ERROR([Your 'rm' program is bad, sorry.])
 601   fi
 602 fi
 603 dnl The trailing newline in this macro's definition is deliberate, for
 604 dnl backward compatibility and to allow trailing 'dnl'-style comments
 605 dnl after the AM_INIT_AUTOMAKE invocation. See automake bug#16841.
 606 ])
 607
 608 dnl Hook into '_AC_COMPILER_EXEEXT' early to learn its expansion.  Do not
 609 dnl add the conditional right here, as _AC_COMPILER_EXEEXT may be further
 610 dnl mangled by Autoconf and run in a shell conditional statement.
 611 m4_define([_AC_COMPILER_EXEEXT],
 612 m4_defn([_AC_COMPILER_EXEEXT])[m4_provide([_AM_COMPILER_EXEEXT])])
 613
 614 # When config.status generates a header, we must update the stamp-h file.
 615 # This file resides in the same directory as the config header
 616 # that is generated.  The stamp files are numbered to have different names.
 617
 618 # Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the
 619 # loop where config.status creates the headers, so we can generate
 620 # our stamp files there.
 621 AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK],
 622 [# Compute $1's index in $config_headers.
 623 _am_arg=$1
 624 _am_stamp_count=1
 625 for _am_header in $config_headers :; do
 626   case $_am_header in
 627     $_am_arg | $_am_arg:* )
 628       break ;;
 629     * )
 630       _am_stamp_count=`expr $_am_stamp_count + 1` ;;
 631   esac
 632 done
 633 echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
 634
 635 # Copyright (C) 2001-2018 Free Software Foundation, Inc.
 636 #
 637 # This file is free software; the Free Software Foundation
 638 # gives unlimited permission to copy and/or distribute it,
 639 # with or without modifications, as long as this notice is preserved.
 640
 641 # AM_PROG_INSTALL_SH
 642 # ------------------
 643 # Define $install_sh.
 644 AC_DEFUN([AM_PROG_INSTALL_SH],
 645 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
 646 if test x"${install_sh+set}" != xset; then
 647   case $am_aux_dir in
 648   *\ * | *\     *)
 649     install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
 650   *)
 651     install_sh="\${SHELL} $am_aux_dir/install-sh"
 652   esac
 653 fi
 654 AC_SUBST([install_sh])])
 655
 656 # Copyright (C) 2003-2018 Free Software Foundation, Inc.
 657 #
 658 # This file is free software; the Free Software Foundation
 659 # gives unlimited permission to copy and/or distribute it,
 660 # with or without modifications, as long as this notice is preserved.
 661
 662 # Check whether the underlying file-system supports filenames
 663 # with a leading dot.  For instance MS-DOS doesn't.
 664 AC_DEFUN([AM_SET_LEADING_DOT],
 665 [rm -rf .tst 2>/dev/null
 666 mkdir .tst 2>/dev/null
 667 if test -d .tst; then
 668   am__leading_dot=.
 669 else
 670   am__leading_dot=_
 671 fi
 672 rmdir .tst 2>/dev/null
 673 AC_SUBST([am__leading_dot])])
 674
 675 # Add --enable-maintainer-mode option to configure.         -*- Autoconf -*-
 676 # From Jim Meyering
 677
 678 # Copyright (C) 1996-2018 Free Software Foundation, Inc.
 679 #
 680 # This file is free software; the Free Software Foundation
 681 # gives unlimited permission to copy and/or distribute it,
 682 # with or without modifications, as long as this notice is preserved.
 683
 684 # AM_MAINTAINER_MODE([DEFAULT-MODE])
 685 # ----------------------------------
 686 # Control maintainer-specific portions of Makefiles.
 687 # Default is to disable them, unless 'enable' is passed literally.
 688 # For symmetry, 'disable' may be passed as well.  Anyway, the user
 689 # can override the default with the --enable/--disable switch.
 690 AC_DEFUN([AM_MAINTAINER_MODE],
 691 [m4_case(m4_default([$1], [disable]),
 692        [enable], [m4_define([am_maintainer_other], [disable])],
 693        [disable], [m4_define([am_maintainer_other], [enable])],
 694        [m4_define([am_maintainer_other], [enable])
 695         m4_warn([syntax], [unexpected argument to AM@&t@_MAINTAINER_MODE: $1])])
 696 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
 697   dnl maintainer-mode's default is 'disable' unless 'enable' is passed
 698   AC_ARG_ENABLE([maintainer-mode],
 699     [AS_HELP_STRING([--]am_maintainer_other[-maintainer-mode],
 700       am_maintainer_other[ make rules and dependencies not useful
 701       (and sometimes confusing) to the casual installer])],
 702     [USE_MAINTAINER_MODE=$enableval],
 703     [USE_MAINTAINER_MODE=]m4_if(am_maintainer_other, [enable], [no], [yes]))
 704   AC_MSG_RESULT([$USE_MAINTAINER_MODE])
 705   AM_CONDITIONAL([MAINTAINER_MODE], [test $USE_MAINTAINER_MODE = yes])
 706   MAINT=$MAINTAINER_MODE_TRUE
 707   AC_SUBST([MAINT])dnl
 708 ]
 709 )
 710
 711 # Check to see how 'make' treats includes.                  -*- Autoconf -*-
 712
 713 # Copyright (C) 2001-2018 Free Software Foundation, Inc.
 714 #
 715 # This file is free software; the Free Software Foundation
 716 # gives unlimited permission to copy and/or distribute it,
 717 # with or without modifications, as long as this notice is preserved.
 718
 719 # AM_MAKE_INCLUDE()
 720 # -----------------
 721 # Check whether make has an 'include' directive that can support all
 722 # the idioms we need for our automatic dependency tracking code.
 723 AC_DEFUN([AM_MAKE_INCLUDE],
 724 [AC_MSG_CHECKING([whether ${MAKE-make} supports the include directive])
 725 cat > confinc.mk << 'END'
 726 am__doit:
 727         @echo this is the am__doit target >confinc.out
 728 .PHONY: am__doit
 729 END
 730 am__include="#"
 731 am__quote=
 732 # BSD make does it like this.
 733 echo '.include "confinc.mk" # ignored' > confmf.BSD
 734 # Other make implementations (GNU, Solaris 10, AIX) do it like this.
 735 echo 'include confinc.mk # ignored' > confmf.GNU
 736 _am_result=no
 737 for s in GNU BSD; do
 738   AM_RUN_LOG([${MAKE-make} -f confmf.$s && cat confinc.out])
 739   AS_CASE([$?:`cat confinc.out 2>/dev/null`],
 740       ['0:this is the am__doit target'],
 741       [AS_CASE([$s],
 742           [BSD], [am__include='.include' am__quote='"'],
 743           [am__include='include' am__quote=''])])
 744   if test "$am__include" != "#"; then
 745     _am_result="yes ($s style)"
 746     break
 747   fi
 748 done
 749 rm -f confinc.* confmf.*
 750 AC_MSG_RESULT([${_am_result}])
 751 AC_SUBST([am__include])])
 752 AC_SUBST([am__quote])])
 753
 754 # Fake the existence of programs that GNU maintainers use.  -*- Autoconf -*-
 755
 756 # Copyright (C) 1997-2018 Free Software Foundation, Inc.
 757 #
 758 # This file is free software; the Free Software Foundation
 759 # gives unlimited permission to copy and/or distribute it,
 760 # with or without modifications, as long as this notice is preserved.
 761
 762 # AM_MISSING_PROG(NAME, PROGRAM)
 763 # ------------------------------
 764 AC_DEFUN([AM_MISSING_PROG],
 765 [AC_REQUIRE([AM_MISSING_HAS_RUN])
 766 $1=${$1-"${am_missing_run}$2"}
 767 AC_SUBST($1)])
 768
 769 # AM_MISSING_HAS_RUN
 770 # ------------------
 771 # Define MISSING if not defined so far and test if it is modern enough.
 772 # If it is, set am_missing_run to use it, otherwise, to nothing.
 773 AC_DEFUN([AM_MISSING_HAS_RUN],
 774 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
 775 AC_REQUIRE_AUX_FILE([missing])dnl
 776 if test x"${MISSING+set}" != xset; then
 777   case $am_aux_dir in
 778   *\ * | *\     *)
 779     MISSING="\${SHELL} \"$am_aux_dir/missing\"" ;;
 780   *)
 781     MISSING="\${SHELL} $am_aux_dir/missing" ;;
 782   esac
 783 fi
 784 # Use eval to expand $SHELL
 785 if eval "$MISSING --is-lightweight"; then
 786   am_missing_run="$MISSING "
 787 else
 788   am_missing_run=
 789   AC_MSG_WARN(['missing' script is too old or missing])
 790 fi
 791 ])
 792
 793 # Helper functions for option handling.                     -*- Autoconf -*-
 794
 795 # Copyright (C) 2001-2018 Free Software Foundation, Inc.
 796 #
 797 # This file is free software; the Free Software Foundation
 798 # gives unlimited permission to copy and/or distribute it,
 799 # with or without modifications, as long as this notice is preserved.
 800
 801 # _AM_MANGLE_OPTION(NAME)
 802 # -----------------------
 803 AC_DEFUN([_AM_MANGLE_OPTION],
 804 [[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
 805
 806 # _AM_SET_OPTION(NAME)
 807 # --------------------
 808 # Set option NAME.  Presently that only means defining a flag for this option.
 809 AC_DEFUN([_AM_SET_OPTION],
 810 [m4_define(_AM_MANGLE_OPTION([$1]), [1])])
 811
 812 # _AM_SET_OPTIONS(OPTIONS)
 813 # ------------------------
 814 # OPTIONS is a space-separated list of Automake options.
 815 AC_DEFUN([_AM_SET_OPTIONS],
 816 [m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
 817
 818 # _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
 819 # -------------------------------------------
 820 # Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
 821 AC_DEFUN([_AM_IF_OPTION],
 822 [m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
 823
 824 # Copyright (C) 1999-2018 Free Software Foundation, Inc.
 825 #
 826 # This file is free software; the Free Software Foundation
 827 # gives unlimited permission to copy and/or distribute it,
 828 # with or without modifications, as long as this notice is preserved.
 829
 830 # _AM_PROG_CC_C_O
 831 # ---------------
 832 # Like AC_PROG_CC_C_O, but changed for automake.  We rewrite AC_PROG_CC
 833 # to automatically call this.
 834 AC_DEFUN([_AM_PROG_CC_C_O],
 835 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
 836 AC_REQUIRE_AUX_FILE([compile])dnl
 837 AC_LANG_PUSH([C])dnl
 838 AC_CACHE_CHECK(
 839   [whether $CC understands -c and -o together],
 840   [am_cv_prog_cc_c_o],
 841   [AC_LANG_CONFTEST([AC_LANG_PROGRAM([])])
 842   # Make sure it works both with $CC and with simple cc.
 843   # Following AC_PROG_CC_C_O, we do the test twice because some
 844   # compilers refuse to overwrite an existing .o file with -o,
 845   # though they will create one.
 846   am_cv_prog_cc_c_o=yes
 847   for am_i in 1 2; do
 848     if AM_RUN_LOG([$CC -c conftest.$ac_ext -o conftest2.$ac_objext]) \
 849          && test -f conftest2.$ac_objext; then
 850       : OK
 851     else
 852       am_cv_prog_cc_c_o=no
 853       break
 854     fi
 855   done
 856   rm -f core conftest*
 857   unset am_i])
 858 if test "$am_cv_prog_cc_c_o" != yes; then
 859    # Losing compiler, so override with the script.
 860    # FIXME: It is wrong to rewrite CC.
 861    # But if we don't then we get into trouble of one sort or another.
 862    # A longer-term fix would be to have automake use am__CC in this case,
 863    # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
 864    CC="$am_aux_dir/compile $CC"
 865 fi
 866 AC_LANG_POP([C])])
 867
 868 # For backward compatibility.
 869 AC_DEFUN_ONCE([AM_PROG_CC_C_O], [AC_REQUIRE([AC_PROG_CC])])
 870
 871 # Copyright (C) 2001-2018 Free Software Foundation, Inc.
 872 #
 873 # This file is free software; the Free Software Foundation
 874 # gives unlimited permission to copy and/or distribute it,
 875 # with or without modifications, as long as this notice is preserved.
 876
 877 # AM_RUN_LOG(COMMAND)
 878 # -------------------
 879 # Run COMMAND, save the exit status in ac_status, and log it.
 880 # (This has been adapted from Autoconf's _AC_RUN_LOG macro.)
 881 AC_DEFUN([AM_RUN_LOG],
 882 [{ echo "$as_me:$LINENO: $1" >&AS_MESSAGE_LOG_FD
 883    ($1) >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD
 884    ac_status=$?
 885    echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
 886    (exit $ac_status); }])
 887
 888 # Check to make sure that the build environment is sane.    -*- Autoconf -*-
 889
 890 # Copyright (C) 1996-2018 Free Software Foundation, Inc.
 891 #
 892 # This file is free software; the Free Software Foundation
 893 # gives unlimited permission to copy and/or distribute it,
 894 # with or without modifications, as long as this notice is preserved.
 895
 896 # AM_SANITY_CHECK
 897 # ---------------
 898 AC_DEFUN([AM_SANITY_CHECK],
 899 [AC_MSG_CHECKING([whether build environment is sane])
 900 # Reject unsafe characters in $srcdir or the absolute working directory
 901 # name.  Accept space and tab only in the latter.
 902 am_lf='
 903 '
 904 case `pwd` in
 905   *[[\\\"\#\$\&\'\`$am_lf]]*)
 906     AC_MSG_ERROR([unsafe absolute working directory name]);;
 907 esac
 908 case $srcdir in
 909   *[[\\\"\#\$\&\'\`$am_lf\ \    ]]*)
 910     AC_MSG_ERROR([unsafe srcdir value: '$srcdir']);;
 911 esac
 912
 913 # Do 'set' in a subshell so we don't clobber the current shell's
 914 # arguments.  Must try -L first in case configure is actually a
 915 # symlink; some systems play weird games with the mod time of symlinks
 916 # (eg FreeBSD returns the mod time of the symlink's containing
 917 # directory).
 918 if (
 919    am_has_slept=no
 920    for am_try in 1 2; do
 921      echo "timestamp, slept: $am_has_slept" > conftest.file
 922      set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
 923      if test "$[*]" = "X"; then
 924         # -L didn't work.
 925         set X `ls -t "$srcdir/configure" conftest.file`
 926      fi
 927      if test "$[*]" != "X $srcdir/configure conftest.file" \
 928         && test "$[*]" != "X conftest.file $srcdir/configure"; then
 929
 930         # If neither matched, then we have a broken ls.  This can happen
 931         # if, for instance, CONFIG_SHELL is bash and it inherits a
 932         # broken ls alias from the environment.  This has actually
 933         # happened.  Such a system could not be considered "sane".
 934         AC_MSG_ERROR([ls -t appears to fail.  Make sure there is not a broken
 935   alias in your environment])
 936      fi
 937      if test "$[2]" = conftest.file || test $am_try -eq 2; then
 938        break
 939      fi
 940      # Just in case.
 941      sleep 1
 942      am_has_slept=yes
 943    done
 944    test "$[2]" = conftest.file
 945    )
 946 then
 947    # Ok.
 948    :
 949 else
 950    AC_MSG_ERROR([newly created file is older than distributed files!
 951 Check your system clock])
 952 fi
 953 AC_MSG_RESULT([yes])
 954 # If we didn't sleep, we still need to ensure time stamps of config.status and
 955 # generated files are strictly newer.
 956 am_sleep_pid=
 957 if grep 'slept: no' conftest.file >/dev/null 2>&1; then
 958   ( sleep 1 ) &
 959   am_sleep_pid=$!
 960 fi
 961 AC_CONFIG_COMMANDS_PRE(
 962   [AC_MSG_CHECKING([that generated files are newer than configure])
 963    if test -n "$am_sleep_pid"; then
 964      # Hide warnings about reused PIDs.
 965      wait $am_sleep_pid 2>/dev/null
 966    fi
 967    AC_MSG_RESULT([done])])
 968 rm -f conftest.file
 969 ])
 970
 971 # Copyright (C) 2009-2018 Free Software Foundation, Inc.
 972 #
 973 # This file is free software; the Free Software Foundation
 974 # gives unlimited permission to copy and/or distribute it,
 975 # with or without modifications, as long as this notice is preserved.
 976
 977 # AM_SILENT_RULES([DEFAULT])
 978 # --------------------------
 979 # Enable less verbose build rules; with the default set to DEFAULT
 980 # ("yes" being less verbose, "no" or empty being verbose).
 981 AC_DEFUN([AM_SILENT_RULES],
 982 [AC_ARG_ENABLE([silent-rules], [dnl
 983 AS_HELP_STRING(
 984   [--enable-silent-rules],
 985   [less verbose build output (undo: "make V=1")])
 986 AS_HELP_STRING(
 987   [--disable-silent-rules],
 988   [verbose build output (undo: "make V=0")])dnl
 989 ])
 990 case $enable_silent_rules in @%:@ (((
 991   yes) AM_DEFAULT_VERBOSITY=0;;
 992    no) AM_DEFAULT_VERBOSITY=1;;
 993     *) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);;
 994 esac
 995 dnl
 996 dnl A few 'make' implementations (e.g., NonStop OS and NextStep)
 997 dnl do not support nested variable expansions.
 998 dnl See automake bug#9928 and bug#10237.
 999 am_make=${MAKE-make}
1000 AC_CACHE_CHECK([whether $am_make supports nested variables],
1001    [am_cv_make_support_nested_variables],
1002    [if AS_ECHO([['TRUE=$(BAR$(V))
1003 BAR0=false
1004 BAR1=true
1005 V=1
1006 am__doit:
1007         @$(TRUE)
1008 .PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then
1009   am_cv_make_support_nested_variables=yes
1010 else
1011   am_cv_make_support_nested_variables=no
1012 fi])
1013 if test $am_cv_make_support_nested_variables = yes; then
1014   dnl Using '$V' instead of '$(V)' breaks IRIX make.
1015   AM_V='$(V)'
1016   AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
1017 else
1018   AM_V=$AM_DEFAULT_VERBOSITY
1019   AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
1020 fi
1021 AC_SUBST([AM_V])dnl
1022 AM_SUBST_NOTMAKE([AM_V])dnl
1023 AC_SUBST([AM_DEFAULT_V])dnl
1024 AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl
1025 AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
1026 AM_BACKSLASH='\'
1027 AC_SUBST([AM_BACKSLASH])dnl
1028 _AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
1029 ])
1030
1031 # Copyright (C) 2001-2018 Free Software Foundation, Inc.
1032 #
1033 # This file is free software; the Free Software Foundation
1034 # gives unlimited permission to copy and/or distribute it,
1035 # with or without modifications, as long as this notice is preserved.
1036
1037 # AM_PROG_INSTALL_STRIP
1038 # ---------------------
1039 # One issue with vendor 'install' (even GNU) is that you can't
1040 # specify the program used to strip binaries.  This is especially
1041 # annoying in cross-compiling environments, where the build's strip
1042 # is unlikely to handle the host's binaries.
1043 # Fortunately install-sh will honor a STRIPPROG variable, so we
1044 # always use install-sh in "make install-strip", and initialize
1045 # STRIPPROG with the value of the STRIP variable (set by the user).
1046 AC_DEFUN([AM_PROG_INSTALL_STRIP],
1047 [AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
1048 # Installed binaries are usually stripped using 'strip' when the user
1049 # run "make install-strip".  However 'strip' might not be the right
1050 # tool to use in cross-compilation environments, therefore Automake
1051 # will honor the 'STRIP' environment variable to overrule this program.
1052 dnl Don't test for $cross_compiling = yes, because it might be 'maybe'.
1053 if test "$cross_compiling" != no; then
1054   AC_CHECK_TOOL([STRIP], [strip], :)
1055 fi
1056 INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
1057 AC_SUBST([INSTALL_STRIP_PROGRAM])])
1058
1059 # Copyright (C) 2006-2018 Free Software Foundation, Inc.
1060 #
1061 # This file is free software; the Free Software Foundation
1062 # gives unlimited permission to copy and/or distribute it,
1063 # with or without modifications, as long as this notice is preserved.
1064
1065 # _AM_SUBST_NOTMAKE(VARIABLE)
1066 # ---------------------------
1067 # Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
1068 # This macro is traced by Automake.
1069 AC_DEFUN([_AM_SUBST_NOTMAKE])
1070
1071 # AM_SUBST_NOTMAKE(VARIABLE)
1072 # --------------------------
1073 # Public sister of _AM_SUBST_NOTMAKE.
1074 AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
1075
1076 # Check how to create a tarball.                            -*- Autoconf -*-
1077
1078 # Copyright (C) 2004-2018 Free Software Foundation, Inc.
1079 #
1080 # This file is free software; the Free Software Foundation
1081 # gives unlimited permission to copy and/or distribute it,
1082 # with or without modifications, as long as this notice is preserved.
1083
1084 # _AM_PROG_TAR(FORMAT)
1085 # --------------------
1086 # Check how to create a tarball in format FORMAT.
1087 # FORMAT should be one of 'v7', 'ustar', or 'pax'.
1088 #
1089 # Substitute a variable $(am__tar) that is a command
1090 # writing to stdout a FORMAT-tarball containing the directory
1091 # $tardir.
1092 #     tardir=directory && $(am__tar) > result.tar
1093 #
1094 # Substitute a variable $(am__untar) that extract such
1095 # a tarball read from stdin.
1096 #     $(am__untar) < result.tar
1097 #
1098 AC_DEFUN([_AM_PROG_TAR],
1099 [# Always define AMTAR for backward compatibility.  Yes, it's still used
1100 # in the wild :-(  We should find a proper way to deprecate it ...
1101 AC_SUBST([AMTAR], ['$${TAR-tar}'])
1102
1103 # We'll loop over all known methods to create a tar archive until one works.
1104 _am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
1105
1106 m4_if([$1], [v7],
1107   [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],
1108
1109   [m4_case([$1],
1110     [ustar],
1111      [# The POSIX 1988 'ustar' format is defined with fixed-size fields.
1112       # There is notably a 21 bits limit for the UID and the GID.  In fact,
1113       # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343
1114       # and bug#13588).
1115       am_max_uid=2097151 # 2^21 - 1
1116       am_max_gid=$am_max_uid
1117       # The $UID and $GID variables are not portable, so we need to resort
1118       # to the POSIX-mandated id(1) utility.  Errors in the 'id' calls
1119       # below are definitely unexpected, so allow the users to see them
1120       # (that is, avoid stderr redirection).
1121       am_uid=`id -u || echo unknown`
1122       am_gid=`id -g || echo unknown`
1123       AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format])
1124       if test $am_uid -le $am_max_uid; then
1125          AC_MSG_RESULT([yes])
1126       else
1127          AC_MSG_RESULT([no])
1128          _am_tools=none
1129       fi
1130       AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format])
1131       if test $am_gid -le $am_max_gid; then
1132          AC_MSG_RESULT([yes])
1133       else
1134         AC_MSG_RESULT([no])
1135         _am_tools=none
1136       fi],
1137
1138   [pax],
1139     [],
1140
1141   [m4_fatal([Unknown tar format])])
1142
1143   AC_MSG_CHECKING([how to create a $1 tar archive])
1144
1145   # Go ahead even if we have the value already cached.  We do so because we
1146   # need to set the values for the 'am__tar' and 'am__untar' variables.
1147   _am_tools=${am_cv_prog_tar_$1-$_am_tools}
1148
1149   for _am_tool in $_am_tools; do
1150     case $_am_tool in
1151     gnutar)
1152       for _am_tar in tar gnutar gtar; do
1153         AM_RUN_LOG([$_am_tar --version]) && break
1154       done
1155       am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
1156       am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
1157       am__untar="$_am_tar -xf -"
1158       ;;
1159     plaintar)
1160       # Must skip GNU tar: if it does not support --format= it doesn't create
1161       # ustar tarball either.
1162       (tar --version) >/dev/null 2>&1 && continue
1163       am__tar='tar chf - "$$tardir"'
1164       am__tar_='tar chf - "$tardir"'
1165       am__untar='tar xf -'
1166       ;;
1167     pax)
1168       am__tar='pax -L -x $1 -w "$$tardir"'
1169       am__tar_='pax -L -x $1 -w "$tardir"'
1170       am__untar='pax -r'
1171       ;;
1172     cpio)
1173       am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
1174       am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
1175       am__untar='cpio -i -H $1 -d'
1176       ;;
1177     none)
1178       am__tar=false
1179       am__tar_=false
1180       am__untar=false
1181       ;;
1182     esac
1183
1184     # If the value was cached, stop now.  We just wanted to have am__tar
1185     # and am__untar set.
1186     test -n "${am_cv_prog_tar_$1}" && break
1187
1188     # tar/untar a dummy directory, and stop if the command works.
1189     rm -rf conftest.dir
1190     mkdir conftest.dir
1191     echo GrepMe > conftest.dir/file
1192     AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
1193     rm -rf conftest.dir
1194     if test -s conftest.tar; then
1195       AM_RUN_LOG([$am__untar <conftest.tar])
1196       AM_RUN_LOG([cat conftest.dir/file])
1197       grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
1198     fi
1199   done
1200   rm -rf conftest.dir
1201
1202   AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
1203   AC_MSG_RESULT([$am_cv_prog_tar_$1])])
1204
1205 AC_SUBST([am__tar])
1206 AC_SUBST([am__untar])
1207 ]) # _AM_PROG_TAR
1208