newlib/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($@)])])
  15 m4_ifndef([AC_AUTOCONF_VERSION],
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  21 To do so, use the procedure documented by the package, typically 'autoreconf'.])])
  22
  23 # Copyright (C) 2002-2017 Free Software Foundation, Inc.
  24 #
  25 # This file is free software; the Free Software Foundation
  26 # gives unlimited permission to copy and/or distribute it,
  27 # with or without modifications, as long as this notice is preserved.
  28
  29 # AM_AUTOMAKE_VERSION(VERSION)
  30 # ----------------------------
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  58
  59 # Copyright (C) 2011-2017 Free Software Foundation, Inc.
  60 #
  61 # This file is free software; the Free Software Foundation
  62 # gives unlimited permission to copy and/or distribute it,
  63 # with or without modifications, as long as this notice is preserved.
  64
  65 # AM_PROG_AR([ACT-IF-FAIL])
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  90           am_cv_ar_interface=lib
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  92           am_cv_ar_interface=unknown
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  95       rm -f conftest.lib libconftest.a
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 100 ar)
 101   ;;
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 104   # FIXME: It is wrong to rewrite AR.
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 117 ])
 118
 119 # Figure out how to run the assembler.                      -*- Autoconf -*-
 120
 121 # Copyright (C) 2001-2017 Free Software Foundation, Inc.
 122 #
 123 # This file is free software; the Free Software Foundation
 124 # gives unlimited permission to copy and/or distribute it,
 125 # with or without modifications, as long as this notice is preserved.
 126
 127 # AM_PROG_AS
 128 # ----------
 129 AC_DEFUN([AM_PROG_AS],
 130 [# By default we simply use the C compiler to build assembly code.
 131 AC_REQUIRE([AC_PROG_CC])
 132 test "${CCAS+set}" = set || CCAS=$CC
 133 test "${CCASFLAGS+set}" = set || CCASFLAGS=$CFLAGS
 134 AC_ARG_VAR([CCAS],      [assembler compiler command (defaults to CC)])
 135 AC_ARG_VAR([CCASFLAGS], [assembler compiler flags (defaults to CFLAGS)])
 136 _AM_IF_OPTION([no-dependencies],, [_AM_DEPENDENCIES([CCAS])])dnl
 137 ])
 138
 139 # AM_AUX_DIR_EXPAND                                         -*- Autoconf -*-
 140
 141 # Copyright (C) 2001-2017 Free Software Foundation, Inc.
 142 #
 143 # This file is free software; the Free Software Foundation
 144 # gives unlimited permission to copy and/or distribute it,
 145 # with or without modifications, as long as this notice is preserved.
 146
 147 # For projects using AC_CONFIG_AUX_DIR([foo]), Autoconf sets
 148 # $ac_aux_dir to '$srcdir/foo'.  In other projects, it is set to
 149 # '$srcdir', '$srcdir/..', or '$srcdir/../..'.
 150 #
 151 # Of course, Automake must honor this variable whenever it calls a
 152 # tool from the auxiliary directory.  The problem is that $srcdir (and
 153 # therefore $ac_aux_dir as well) can be either absolute or relative,
 154 # depending on how configure is run.  This is pretty annoying, since
 155 # it makes $ac_aux_dir quite unusable in subdirectories: in the top
 156 # source directory, any form will work fine, but in subdirectories a
 157 # relative path needs to be adjusted first.
 158 #
 159 # $ac_aux_dir/missing
 160 #    fails when called from a subdirectory if $ac_aux_dir is relative
 161 # $top_srcdir/$ac_aux_dir/missing
 162 #    fails if $ac_aux_dir is absolute,
 163 #    fails when called from a subdirectory in a VPATH build with
 164 #          a relative $ac_aux_dir
 165 #
 166 # The reason of the latter failure is that $top_srcdir and $ac_aux_dir
 167 # are both prefixed by $srcdir.  In an in-source build this is usually
 168 # harmless because $srcdir is '.', but things will broke when you
 169 # start a VPATH build or use an absolute $srcdir.
 170 #
 171 # So we could use something similar to $top_srcdir/$ac_aux_dir/missing,
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 173 #   am_aux_dir='\$(top_srcdir)/'`expr "$ac_aux_dir" : "$srcdir//*\(.*\)"`
 174 # and then we would define $MISSING as
 175 #   MISSING="\${SHELL} $am_aux_dir/missing"
 176 # This will work as long as MISSING is not called from configure, because
 177 # unfortunately $(top_srcdir) has no meaning in configure.
 178 # However there are other variables, like CC, which are often used in
 179 # configure, and could therefore not use this "fixed" $ac_aux_dir.
 180 #
 181 # Another solution, used here, is to always expand $ac_aux_dir to an
 182 # absolute PATH.  The drawback is that using absolute paths prevent a
 183 # configured tree to be moved without reconfiguration.
 184
 185 AC_DEFUN([AM_AUX_DIR_EXPAND],
 186 [AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
 187 # Expand $ac_aux_dir to an absolute path.
 188 am_aux_dir=`cd "$ac_aux_dir" && pwd`
 189 ])
 190
 191 # AM_CONDITIONAL                                            -*- Autoconf -*-
 192
 193 # Copyright (C) 1997-2017 Free Software Foundation, Inc.
 194 #
 195 # This file is free software; the Free Software Foundation
 196 # gives unlimited permission to copy and/or distribute it,
 197 # with or without modifications, as long as this notice is preserved.
 198
 199 # AM_CONDITIONAL(NAME, SHELL-CONDITION)
 200 # -------------------------------------
 201 # Define a conditional.
 202 AC_DEFUN([AM_CONDITIONAL],
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 204  m4_if([$1], [TRUE],  [AC_FATAL([$0: invalid condition: $1])],
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 208 _AM_SUBST_NOTMAKE([$1_TRUE])dnl
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 221 Usually this means the macro was only invoked conditionally.]])
 222 fi])])
 223
 224 # Copyright (C) 1999-2017 Free Software Foundation, Inc.
 225 #
 226 # This file is free software; the Free Software Foundation
 227 # gives unlimited permission to copy and/or distribute it,
 228 # with or without modifications, as long as this notice is preserved.
 229
 230
 231 # There are a few dirty hacks below to avoid letting 'AC_PROG_CC' be
 232 # written in clear, in which case automake, when reading aclocal.m4,
 233 # will think it sees a *use*, and therefore will trigger all it's
 234 # C support machinery.  Also note that it means that autoscan, seeing
 235 # CC etc. in the Makefile, will ask for an AC_PROG_CC use...
 236
 237
 238 # _AM_DEPENDENCIES(NAME)
 239 # ----------------------
 240 # See how the compiler implements dependency checking.
 241 # NAME is "CC", "CXX", "OBJC", "OBJCXX", "UPC", or "GJC".
 242 # We try a few techniques and use that to set a single cache variable.
 243 #
 244 # We don't AC_REQUIRE the corresponding AC_PROG_CC since the latter was
 245 # modified to invoke _AM_DEPENDENCIES(CC); we would have a circular
 246 # dependency, and given that the user is not expected to run this macro,
 247 # just rely on AC_PROG_CC.
 248 AC_DEFUN([_AM_DEPENDENCIES],
 249 [AC_REQUIRE([AM_SET_DEPDIR])dnl
 250 AC_REQUIRE([AM_OUTPUT_DEPENDENCY_COMMANDS])dnl
 251 AC_REQUIRE([AM_MAKE_INCLUDE])dnl
 252 AC_REQUIRE([AM_DEP_TRACK])dnl
 253
 254 m4_if([$1], [CC],   [depcc="$CC"   am_compiler_list=],
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 260                     [depcc="$$1"   am_compiler_list=])
 261
 262 AC_CACHE_CHECK([dependency style of $depcc],
 263                [am_cv_$1_dependencies_compiler_type],
 264 [if test -z "$AMDEP_TRUE" && test -f "$am_depcomp"; then
 265   # We make a subdir and do the tests there.  Otherwise we can end up
 266   # making bogus files that we don't know about and never remove.  For
 267   # instance it was reported that on HP-UX the gcc test will end up
 268   # making a dummy file named 'D' -- because '-MD' means "put the output
 269   # in D".
 270   rm -rf conftest.dir
 271   mkdir conftest.dir
 272   # Copy depcomp to subdir because otherwise we won't find it if we're
 273   # using a relative directory.
 274   cp "$am_depcomp" conftest.dir
 275   cd conftest.dir
 276   # We will build objects and dependencies in a subdirectory because
 277   # it helps to detect inapplicable dependency modes.  For instance
 278   # both Tru64's cc and ICC support -MD to output dependencies as a
 279   # side effect of compilation, but ICC will put the dependencies in
 280   # the current directory while Tru64 will put them in the object
 281   # directory.
 282   mkdir sub
 283
 284   am_cv_$1_dependencies_compiler_type=none
 285   if test "$am_compiler_list" = ""; then
 286      am_compiler_list=`sed -n ['s/^#*\([a-zA-Z0-9]*\))$/\1/p'] < ./depcomp`
 287   fi
 288   am__universal=false
 289   m4_case([$1], [CC],
 290     [case " $depcc " in #(
 291      *\ -arch\ *\ -arch\ *) am__universal=true ;;
 292      esac],
 293     [CXX],
 294     [case " $depcc " in #(
 295      *\ -arch\ *\ -arch\ *) am__universal=true ;;
 296      esac])
 297
 298   for depmode in $am_compiler_list; do
 299     # Setup a source with many dependencies, because some compilers
 300     # like to wrap large dependency lists on column 80 (with \), and
 301     # we should not choose a depcomp mode which is confused by this.
 302     #
 303     # We need to recreate these files for each test, as the compiler may
 304     # overwrite some of them when testing with obscure command lines.
 305     # This happens at least with the AIX C compiler.
 306     : > sub/conftest.c
 307     for i in 1 2 3 4 5 6; do
 308       echo '#include "conftst'$i'.h"' >> sub/conftest.c
 309       # Using ": > sub/conftst$i.h" creates only sub/conftst1.h with
 310       # Solaris 10 /bin/sh.
 311       echo '/* dummy */' > sub/conftst$i.h
 312     done
 313     echo "${am__include} ${am__quote}sub/conftest.Po${am__quote}" > confmf
 314
 315     # We check with '-c' and '-o' for the sake of the "dashmstdout"
 316     # mode.  It turns out that the SunPro C++ compiler does not properly
 317     # handle '-M -o', and we need to detect this.  Also, some Intel
 318     # versions had trouble with output in subdirs.
 319     am__obj=sub/conftest.${OBJEXT-o}
 320     am__minus_obj="-o $am__obj"
 321     case $depmode in
 322     gcc)
 323       # This depmode causes a compiler race in universal mode.
 324       test "$am__universal" = false || continue
 325       ;;
 326     nosideeffect)
 327       # After this tag, mechanisms are not by side-effect, so they'll
 328       # only be used when explicitly requested.
 329       if test "x$enable_dependency_tracking" = xyes; then
 330         continue
 331       else
 332         break
 333       fi
 334       ;;
 335     msvc7 | msvc7msys | msvisualcpp | msvcmsys)
 336       # This compiler won't grok '-c -o', but also, the minuso test has
 337       # not run yet.  These depmodes are late enough in the game, and
 338       # so weak that their functioning should not be impacted.
 339       am__obj=conftest.${OBJEXT-o}
 340       am__minus_obj=
 341       ;;
 342     none) break ;;
 343     esac
 344     if depmode=$depmode \
 345        source=sub/conftest.c object=$am__obj \
 346        depfile=sub/conftest.Po tmpdepfile=sub/conftest.TPo \
 347        $SHELL ./depcomp $depcc -c $am__minus_obj sub/conftest.c \
 348          >/dev/null 2>conftest.err &&
 349        grep sub/conftst1.h sub/conftest.Po > /dev/null 2>&1 &&
 350        grep sub/conftst6.h sub/conftest.Po > /dev/null 2>&1 &&
 351        grep $am__obj sub/conftest.Po > /dev/null 2>&1 &&
 352        ${MAKE-make} -s -f confmf > /dev/null 2>&1; then
 353       # icc doesn't choke on unknown options, it will just issue warnings
 354       # or remarks (even with -Werror).  So we grep stderr for any message
 355       # that says an option was ignored or not supported.
 356       # When given -MP, icc 7.0 and 7.1 complain thusly:
 357       #   icc: Command line warning: ignoring option '-M'; no argument required
 358       # The diagnosis changed in icc 8.0:
 359       #   icc: Command line remark: option '-MP' not supported
 360       if (grep 'ignoring option' conftest.err ||
 361           grep 'not supported' conftest.err) >/dev/null 2>&1; then :; else
 362         am_cv_$1_dependencies_compiler_type=$depmode
 363         break
 364       fi
 365     fi
 366   done
 367
 368   cd ..
 369   rm -rf conftest.dir
 370 else
 371   am_cv_$1_dependencies_compiler_type=none
 372 fi
 373 ])
 374 AC_SUBST([$1DEPMODE], [depmode=$am_cv_$1_dependencies_compiler_type])
 375 AM_CONDITIONAL([am__fastdep$1], [
 376   test "x$enable_dependency_tracking" != xno \
 377   && test "$am_cv_$1_dependencies_compiler_type" = gcc3])
 378 ])
 379
 380
 381 # AM_SET_DEPDIR
 382 # -------------
 383 # Choose a directory name for dependency files.
 384 # This macro is AC_REQUIREd in _AM_DEPENDENCIES.
 385 AC_DEFUN([AM_SET_DEPDIR],
 386 [AC_REQUIRE([AM_SET_LEADING_DOT])dnl
 387 AC_SUBST([DEPDIR], ["${am__leading_dot}deps"])dnl
 388 ])
 389
 390
 391 # AM_DEP_TRACK
 392 # ------------
 393 AC_DEFUN([AM_DEP_TRACK],
 394 [AC_ARG_ENABLE([dependency-tracking], [dnl
 395 AS_HELP_STRING(
 396   [--enable-dependency-tracking],
 397   [do not reject slow dependency extractors])
 398 AS_HELP_STRING(
 399   [--disable-dependency-tracking],
 400   [speeds up one-time build])])
 401 if test "x$enable_dependency_tracking" != xno; then
 402   am_depcomp="$ac_aux_dir/depcomp"
 403   AMDEPBACKSLASH='\'
 404   am__nodep='_no'
 405 fi
 406 AM_CONDITIONAL([AMDEP], [test "x$enable_dependency_tracking" != xno])
 407 AC_SUBST([AMDEPBACKSLASH])dnl
 408 _AM_SUBST_NOTMAKE([AMDEPBACKSLASH])dnl
 409 AC_SUBST([am__nodep])dnl
 410 _AM_SUBST_NOTMAKE([am__nodep])dnl
 411 ])
 412
 413 # Generate code to set up dependency tracking.              -*- Autoconf -*-
 414
 415 # Copyright (C) 1999-2017 Free Software Foundation, Inc.
 416 #
 417 # This file is free software; the Free Software Foundation
 418 # gives unlimited permission to copy and/or distribute it,
 419 # with or without modifications, as long as this notice is preserved.
 420
 421
 422 # _AM_OUTPUT_DEPENDENCY_COMMANDS
 423 # ------------------------------
 424 AC_DEFUN([_AM_OUTPUT_DEPENDENCY_COMMANDS],
 425 [{
 426   # Older Autoconf quotes --file arguments for eval, but not when files
 427   # are listed without --file.  Let's play safe and only enable the eval
 428   # if we detect the quoting.
 429   case $CONFIG_FILES in
 430   *\'*) eval set x "$CONFIG_FILES" ;;
 431   *)   set x $CONFIG_FILES ;;
 432   esac
 433   shift
 434   for mf
 435   do
 436     # Strip MF so we end up with the name of the file.
 437     mf=`echo "$mf" | sed -e 's/:.*$//'`
 438     # Check whether this is an Automake generated Makefile or not.
 439     # We used to match only the files named 'Makefile.in', but
 440     # some people rename them; so instead we look at the file content.
 441     # Grep'ing the first line is not enough: some people post-process
 442     # each Makefile.in and add a new line on top of each file to say so.
 443     # Grep'ing the whole file is not good either: AIX grep has a line
 444     # limit of 2048, but all sed's we know have understand at least 4000.
 445     if sed -n 's,^#.*generated by automake.*,X,p' "$mf" | grep X >/dev/null 2>&1; then
 446       dirpart=`AS_DIRNAME("$mf")`
 447     else
 448       continue
 449     fi
 450     # Extract the definition of DEPDIR, am__include, and am__quote
 451     # from the Makefile without running 'make'.
 452     DEPDIR=`sed -n 's/^DEPDIR = //p' < "$mf"`
 453     test -z "$DEPDIR" && continue
 454     am__include=`sed -n 's/^am__include = //p' < "$mf"`
 455     test -z "$am__include" && continue
 456     am__quote=`sed -n 's/^am__quote = //p' < "$mf"`
 457     # Find all dependency output files, they are included files with
 458     # $(DEPDIR) in their names.  We invoke sed twice because it is the
 459     # simplest approach to changing $(DEPDIR) to its actual value in the
 460     # expansion.
 461     for file in `sed -n "
 462       s/^$am__include $am__quote\(.*(DEPDIR).*\)$am__quote"'$/\1/p' <"$mf" | \
 463          sed -e 's/\$(DEPDIR)/'"$DEPDIR"'/g'`; do
 464       # Make sure the directory exists.
 465       test -f "$dirpart/$file" && continue
 466       fdir=`AS_DIRNAME(["$file"])`
 467       AS_MKDIR_P([$dirpart/$fdir])
 468       # echo "creating $dirpart/$file"
 469       echo '# dummy' > "$dirpart/$file"
 470     done
 471   done
 472 }
 473 ])# _AM_OUTPUT_DEPENDENCY_COMMANDS
 474
 475
 476 # AM_OUTPUT_DEPENDENCY_COMMANDS
 477 # -----------------------------
 478 # This macro should only be invoked once -- use via AC_REQUIRE.
 479 #
 480 # This code is only required when automatic dependency tracking
 481 # is enabled.  FIXME.  This creates each '.P' file that we will
 482 # need in order to bootstrap the dependency handling code.
 483 AC_DEFUN([AM_OUTPUT_DEPENDENCY_COMMANDS],
 484 [AC_CONFIG_COMMANDS([depfiles],
 485      [test x"$AMDEP_TRUE" != x"" || _AM_OUTPUT_DEPENDENCY_COMMANDS],
 486      [AMDEP_TRUE="$AMDEP_TRUE" ac_aux_dir="$ac_aux_dir"])
 487 ])
 488
 489 # Do all the work for Automake.                             -*- Autoconf -*-
 490
 491 # Copyright (C) 1996-2017 Free Software Foundation, Inc.
 492 #
 493 # This file is free software; the Free Software Foundation
 494 # gives unlimited permission to copy and/or distribute it,
 495 # with or without modifications, as long as this notice is preserved.
 496
 497 # This macro actually does too much.  Some checks are only needed if
 498 # your package does certain things.  But this isn't really a big deal.
 499
 500 dnl Redefine AC_PROG_CC to automatically invoke _AM_PROG_CC_C_O.
 501 m4_define([AC_PROG_CC],
 502 m4_defn([AC_PROG_CC])
 503 [_AM_PROG_CC_C_O
 504 ])
 505
 506 # AM_INIT_AUTOMAKE(PACKAGE, VERSION, [NO-DEFINE])
 507 # AM_INIT_AUTOMAKE([OPTIONS])
 508 # -----------------------------------------------
 509 # The call with PACKAGE and VERSION arguments is the old style
 510 # call (pre autoconf-2.50), which is being phased out.  PACKAGE
 511 # and VERSION should now be passed to AC_INIT and removed from
 512 # the call to AM_INIT_AUTOMAKE.
 513 # We support both call styles for the transition.  After
 514 # the next Automake release, Autoconf can make the AC_INIT
 515 # arguments mandatory, and then we can depend on a new Autoconf
 516 # release and drop the old call support.
 517 AC_DEFUN([AM_INIT_AUTOMAKE],
 518 [AC_PREREQ([2.65])dnl
 519 dnl Autoconf wants to disallow AM_ names.  We explicitly allow
 520 dnl the ones we care about.
 521 m4_pattern_allow([^AM_[A-Z]+FLAGS$])dnl
 522 AC_REQUIRE([AM_SET_CURRENT_AUTOMAKE_VERSION])dnl
 523 AC_REQUIRE([AC_PROG_INSTALL])dnl
 524 if test "`cd $srcdir && pwd`" != "`pwd`"; then
 525   # Use -I$(srcdir) only when $(srcdir) != ., so that make's output
 526   # is not polluted with repeated "-I."
 527   AC_SUBST([am__isrc], [' -I$(srcdir)'])_AM_SUBST_NOTMAKE([am__isrc])dnl
 528   # test to see if srcdir already configured
 529   if test -f $srcdir/config.status; then
 530     AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
 531   fi
 532 fi
 533
 534 # test whether we have cygpath
 535 if test -z "$CYGPATH_W"; then
 536   if (cygpath --version) >/dev/null 2>/dev/null; then
 537     CYGPATH_W='cygpath -w'
 538   else
 539     CYGPATH_W=echo
 540   fi
 541 fi
 542 AC_SUBST([CYGPATH_W])
 543
 544 # Define the identity of the package.
 545 dnl Distinguish between old-style and new-style calls.
 546 m4_ifval([$2],
 547 [AC_DIAGNOSE([obsolete],
 548              [$0: two- and three-arguments forms are deprecated.])
 549 m4_ifval([$3], [_AM_SET_OPTION([no-define])])dnl
 550  AC_SUBST([PACKAGE], [$1])dnl
 551  AC_SUBST([VERSION], [$2])],
 552 [_AM_SET_OPTIONS([$1])dnl
 553 dnl Diagnose old-style AC_INIT with new-style AM_AUTOMAKE_INIT.
 554 m4_if(
 555   m4_ifdef([AC_PACKAGE_NAME], [ok]):m4_ifdef([AC_PACKAGE_VERSION], [ok]),
 556   [ok:ok],,
 557   [m4_fatal([AC_INIT should be called with package and version arguments])])dnl
 558  AC_SUBST([PACKAGE], ['AC_PACKAGE_TARNAME'])dnl
 559  AC_SUBST([VERSION], ['AC_PACKAGE_VERSION'])])dnl
 560
 561 _AM_IF_OPTION([no-define],,
 562 [AC_DEFINE_UNQUOTED([PACKAGE], ["$PACKAGE"], [Name of package])
 563  AC_DEFINE_UNQUOTED([VERSION], ["$VERSION"], [Version number of package])])dnl
 564
 565 # Some tools Automake needs.
 566 AC_REQUIRE([AM_SANITY_CHECK])dnl
 567 AC_REQUIRE([AC_ARG_PROGRAM])dnl
 568 AM_MISSING_PROG([ACLOCAL], [aclocal-${am__api_version}])
 569 AM_MISSING_PROG([AUTOCONF], [autoconf])
 570 AM_MISSING_PROG([AUTOMAKE], [automake-${am__api_version}])
 571 AM_MISSING_PROG([AUTOHEADER], [autoheader])
 572 AM_MISSING_PROG([MAKEINFO], [makeinfo])
 573 AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
 574 AC_REQUIRE([AM_PROG_INSTALL_STRIP])dnl
 575 AC_REQUIRE([AC_PROG_MKDIR_P])dnl
 576 # For better backward compatibility.  To be removed once Automake 1.9.x
 577 # dies out for good.  For more background, see:
 578 # <http://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
 579 # <http://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
 580 AC_SUBST([mkdir_p], ['$(MKDIR_P)'])
 581 # We need awk for the "check" target (and possibly the TAP driver).  The
 582 # system "awk" is bad on some platforms.
 583 AC_REQUIRE([AC_PROG_AWK])dnl
 584 AC_REQUIRE([AC_PROG_MAKE_SET])dnl
 585 AC_REQUIRE([AM_SET_LEADING_DOT])dnl
 586 _AM_IF_OPTION([tar-ustar], [_AM_PROG_TAR([ustar])],
 587               [_AM_IF_OPTION([tar-pax], [_AM_PROG_TAR([pax])],
 588                              [_AM_PROG_TAR([v7])])])
 589 _AM_IF_OPTION([no-dependencies],,
 590 [AC_PROVIDE_IFELSE([AC_PROG_CC],
 591                   [_AM_DEPENDENCIES([CC])],
 592                   [m4_define([AC_PROG_CC],
 593                              m4_defn([AC_PROG_CC])[_AM_DEPENDENCIES([CC])])])dnl
 594 AC_PROVIDE_IFELSE([AC_PROG_CXX],
 595                   [_AM_DEPENDENCIES([CXX])],
 596                   [m4_define([AC_PROG_CXX],
 597                              m4_defn([AC_PROG_CXX])[_AM_DEPENDENCIES([CXX])])])dnl
 598 AC_PROVIDE_IFELSE([AC_PROG_OBJC],
 599                   [_AM_DEPENDENCIES([OBJC])],
 600                   [m4_define([AC_PROG_OBJC],
 601                              m4_defn([AC_PROG_OBJC])[_AM_DEPENDENCIES([OBJC])])])dnl
 602 AC_PROVIDE_IFELSE([AC_PROG_OBJCXX],
 603                   [_AM_DEPENDENCIES([OBJCXX])],
 604                   [m4_define([AC_PROG_OBJCXX],
 605                              m4_defn([AC_PROG_OBJCXX])[_AM_DEPENDENCIES([OBJCXX])])])dnl
 606 ])
 607 AC_REQUIRE([AM_SILENT_RULES])dnl
 608 dnl The testsuite driver may need to know about EXEEXT, so add the
 609 dnl 'am__EXEEXT' conditional if _AM_COMPILER_EXEEXT was seen.  This
 610 dnl macro is hooked onto _AC_COMPILER_EXEEXT early, see below.
 611 AC_CONFIG_COMMANDS_PRE(dnl
 612 [m4_provide_if([_AM_COMPILER_EXEEXT],
 613   [AM_CONDITIONAL([am__EXEEXT], [test -n "$EXEEXT"])])])dnl
 614
 615 # POSIX will say in a future version that running "rm -f" with no argument
 616 # is OK; and we want to be able to make that assumption in our Makefile
 617 # recipes.  So use an aggressive probe to check that the usage we want is
 618 # actually supported "in the wild" to an acceptable degree.
 619 # See automake bug#10828.
 620 # To make any issue more visible, cause the running configure to be aborted
 621 # by default if the 'rm' program in use doesn't match our expectations; the
 622 # user can still override this though.
 623 if rm -f && rm -fr && rm -rf; then : OK; else
 624   cat >&2 <<'END'
 625 Oops!
 626
 627 Your 'rm' program seems unable to run without file operands specified
 628 on the command line, even when the '-f' option is present.  This is contrary
 629 to the behaviour of most rm programs out there, and not conforming with
 630 the upcoming POSIX standard: <http://austingroupbugs.net/view.php?id=542>
 631
 632 Please tell bug-automake@gnu.org about your system, including the value
 633 of your $PATH and any error possibly output before this message.  This
 634 can help us improve future automake versions.
 635
 636 END
 637   if test x"$ACCEPT_INFERIOR_RM_PROGRAM" = x"yes"; then
 638     echo 'Configuration will proceed anyway, since you have set the' >&2
 639     echo 'ACCEPT_INFERIOR_RM_PROGRAM variable to "yes"' >&2
 640     echo >&2
 641   else
 642     cat >&2 <<'END'
 643 Aborting the configuration process, to ensure you take notice of the issue.
 644
 645 You can download and install GNU coreutils to get an 'rm' implementation
 646 that behaves properly: <http://www.gnu.org/software/coreutils/>.
 647
 648 If you want to complete the configuration process using your problematic
 649 'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM
 650 to "yes", and re-run configure.
 651
 652 END
 653     AC_MSG_ERROR([Your 'rm' program is bad, sorry.])
 654   fi
 655 fi
 656 dnl The trailing newline in this macro's definition is deliberate, for
 657 dnl backward compatibility and to allow trailing 'dnl'-style comments
 658 dnl after the AM_INIT_AUTOMAKE invocation. See automake bug#16841.
 659 ])
 660
 661 dnl Hook into '_AC_COMPILER_EXEEXT' early to learn its expansion.  Do not
 662 dnl add the conditional right here, as _AC_COMPILER_EXEEXT may be further
 663 dnl mangled by Autoconf and run in a shell conditional statement.
 664 m4_define([_AC_COMPILER_EXEEXT],
 665 m4_defn([_AC_COMPILER_EXEEXT])[m4_provide([_AM_COMPILER_EXEEXT])])
 666
 667 # When config.status generates a header, we must update the stamp-h file.
 668 # This file resides in the same directory as the config header
 669 # that is generated.  The stamp files are numbered to have different names.
 670
 671 # Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the
 672 # loop where config.status creates the headers, so we can generate
 673 # our stamp files there.
 674 AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK],
 675 [# Compute $1's index in $config_headers.
 676 _am_arg=$1
 677 _am_stamp_count=1
 678 for _am_header in $config_headers :; do
 679   case $_am_header in
 680     $_am_arg | $_am_arg:* )
 681       break ;;
 682     * )
 683       _am_stamp_count=`expr $_am_stamp_count + 1` ;;
 684   esac
 685 done
 686 echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
 687
 688 # Copyright (C) 2001-2017 Free Software Foundation, Inc.
 689 #
 690 # This file is free software; the Free Software Foundation
 691 # gives unlimited permission to copy and/or distribute it,
 692 # with or without modifications, as long as this notice is preserved.
 693
 694 # AM_PROG_INSTALL_SH
 695 # ------------------
 696 # Define $install_sh.
 697 AC_DEFUN([AM_PROG_INSTALL_SH],
 698 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
 699 if test x"${install_sh+set}" != xset; then
 700   case $am_aux_dir in
 701   *\ * | *\     *)
 702     install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
 703   *)
 704     install_sh="\${SHELL} $am_aux_dir/install-sh"
 705   esac
 706 fi
 707 AC_SUBST([install_sh])])
 708
 709 # Add --enable-maintainer-mode option to configure.         -*- Autoconf -*-
 710 # From Jim Meyering
 711
 712 # Copyright (C) 1996-2017 Free Software Foundation, Inc.
 713 #
 714 # This file is free software; the Free Software Foundation
 715 # gives unlimited permission to copy and/or distribute it,
 716 # with or without modifications, as long as this notice is preserved.
 717
 718 # AM_MAINTAINER_MODE([DEFAULT-MODE])
 719 # ----------------------------------
 720 # Control maintainer-specific portions of Makefiles.
 721 # Default is to disable them, unless 'enable' is passed literally.
 722 # For symmetry, 'disable' may be passed as well.  Anyway, the user
 723 # can override the default with the --enable/--disable switch.
 724 AC_DEFUN([AM_MAINTAINER_MODE],
 725 [m4_case(m4_default([$1], [disable]),
 726        [enable], [m4_define([am_maintainer_other], [disable])],
 727        [disable], [m4_define([am_maintainer_other], [enable])],
 728        [m4_define([am_maintainer_other], [enable])
 729         m4_warn([syntax], [unexpected argument to AM@&t@_MAINTAINER_MODE: $1])])
 730 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
 731   dnl maintainer-mode's default is 'disable' unless 'enable' is passed
 732   AC_ARG_ENABLE([maintainer-mode],
 733     [AS_HELP_STRING([--]am_maintainer_other[-maintainer-mode],
 734       am_maintainer_other[ make rules and dependencies not useful
 735       (and sometimes confusing) to the casual installer])],
 736     [USE_MAINTAINER_MODE=$enableval],
 737     [USE_MAINTAINER_MODE=]m4_if(am_maintainer_other, [enable], [no], [yes]))
 738   AC_MSG_RESULT([$USE_MAINTAINER_MODE])
 739   AM_CONDITIONAL([MAINTAINER_MODE], [test $USE_MAINTAINER_MODE = yes])
 740   MAINT=$MAINTAINER_MODE_TRUE
 741   AC_SUBST([MAINT])dnl
 742 ]
 743 )
 744
 745 # Check to see how 'make' treats includes.                  -*- Autoconf -*-
 746
 747 # Copyright (C) 2001-2017 Free Software Foundation, Inc.
 748 #
 749 # This file is free software; the Free Software Foundation
 750 # gives unlimited permission to copy and/or distribute it,
 751 # with or without modifications, as long as this notice is preserved.
 752
 753 # AM_MAKE_INCLUDE()
 754 # -----------------
 755 # Check to see how make treats includes.
 756 AC_DEFUN([AM_MAKE_INCLUDE],
 757 [am_make=${MAKE-make}
 758 cat > confinc << 'END'
 759 am__doit:
 760         @echo this is the am__doit target
 761 .PHONY: am__doit
 762 END
 763 # If we don't find an include directive, just comment out the code.
 764 AC_MSG_CHECKING([for style of include used by $am_make])
 765 am__include="#"
 766 am__quote=
 767 _am_result=none
 768 # First try GNU make style include.
 769 echo "include confinc" > confmf
 770 # Ignore all kinds of additional output from 'make'.
 771 case `$am_make -s -f confmf 2> /dev/null` in #(
 772 *the\ am__doit\ target*)
 773   am__include=include
 774   am__quote=
 775   _am_result=GNU
 776   ;;
 777 esac
 778 # Now try BSD make style include.
 779 if test "$am__include" = "#"; then
 780    echo '.include "confinc"' > confmf
 781    case `$am_make -s -f confmf 2> /dev/null` in #(
 782    *the\ am__doit\ target*)
 783      am__include=.include
 784      am__quote="\""
 785      _am_result=BSD
 786      ;;
 787    esac
 788 fi
 789 AC_SUBST([am__include])
 790 AC_SUBST([am__quote])
 791 AC_MSG_RESULT([$_am_result])
 792 rm -f confinc confmf
 793 ])
 794
 795 # Fake the existence of programs that GNU maintainers use.  -*- Autoconf -*-
 796
 797 # Copyright (C) 1997-2017 Free Software Foundation, Inc.
 798 #
 799 # This file is free software; the Free Software Foundation
 800 # gives unlimited permission to copy and/or distribute it,
 801 # with or without modifications, as long as this notice is preserved.
 802
 803 # AM_MISSING_PROG(NAME, PROGRAM)
 804 # ------------------------------
 805 AC_DEFUN([AM_MISSING_PROG],
 806 [AC_REQUIRE([AM_MISSING_HAS_RUN])
 807 $1=${$1-"${am_missing_run}$2"}
 808 AC_SUBST($1)])
 809
 810 # AM_MISSING_HAS_RUN
 811 # ------------------
 812 # Define MISSING if not defined so far and test if it is modern enough.
 813 # If it is, set am_missing_run to use it, otherwise, to nothing.
 814 AC_DEFUN([AM_MISSING_HAS_RUN],
 815 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
 816 AC_REQUIRE_AUX_FILE([missing])dnl
 817 if test x"${MISSING+set}" != xset; then
 818   case $am_aux_dir in
 819   *\ * | *\     *)
 820     MISSING="\${SHELL} \"$am_aux_dir/missing\"" ;;
 821   *)
 822     MISSING="\${SHELL} $am_aux_dir/missing" ;;
 823   esac
 824 fi
 825 # Use eval to expand $SHELL
 826 if eval "$MISSING --is-lightweight"; then
 827   am_missing_run="$MISSING "
 828 else
 829   am_missing_run=
 830   AC_MSG_WARN(['missing' script is too old or missing])
 831 fi
 832 ])
 833
 834 # Helper functions for option handling.                     -*- Autoconf -*-
 835
 836 # Copyright (C) 2001-2017 Free Software Foundation, Inc.
 837 #
 838 # This file is free software; the Free Software Foundation
 839 # gives unlimited permission to copy and/or distribute it,
 840 # with or without modifications, as long as this notice is preserved.
 841
 842 # _AM_MANGLE_OPTION(NAME)
 843 # -----------------------
 844 AC_DEFUN([_AM_MANGLE_OPTION],
 845 [[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
 846
 847 # _AM_SET_OPTION(NAME)
 848 # --------------------
 849 # Set option NAME.  Presently that only means defining a flag for this option.
 850 AC_DEFUN([_AM_SET_OPTION],
 851 [m4_define(_AM_MANGLE_OPTION([$1]), [1])])
 852
 853 # _AM_SET_OPTIONS(OPTIONS)
 854 # ------------------------
 855 # OPTIONS is a space-separated list of Automake options.
 856 AC_DEFUN([_AM_SET_OPTIONS],
 857 [m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
 858
 859 # _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
 860 # -------------------------------------------
 861 # Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
 862 AC_DEFUN([_AM_IF_OPTION],
 863 [m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
 864
 865 # Copyright (C) 1999-2017 Free Software Foundation, Inc.
 866 #
 867 # This file is free software; the Free Software Foundation
 868 # gives unlimited permission to copy and/or distribute it,
 869 # with or without modifications, as long as this notice is preserved.
 870
 871 # _AM_PROG_CC_C_O
 872 # ---------------
 873 # Like AC_PROG_CC_C_O, but changed for automake.  We rewrite AC_PROG_CC
 874 # to automatically call this.
 875 AC_DEFUN([_AM_PROG_CC_C_O],
 876 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
 877 AC_REQUIRE_AUX_FILE([compile])dnl
 878 AC_LANG_PUSH([C])dnl
 879 AC_CACHE_CHECK(
 880   [whether $CC understands -c and -o together],
 881   [am_cv_prog_cc_c_o],
 882   [AC_LANG_CONFTEST([AC_LANG_PROGRAM([])])
 883   # Make sure it works both with $CC and with simple cc.
 884   # Following AC_PROG_CC_C_O, we do the test twice because some
 885   # compilers refuse to overwrite an existing .o file with -o,
 886   # though they will create one.
 887   am_cv_prog_cc_c_o=yes
 888   for am_i in 1 2; do
 889     if AM_RUN_LOG([$CC -c conftest.$ac_ext -o conftest2.$ac_objext]) \
 890          && test -f conftest2.$ac_objext; then
 891       : OK
 892     else
 893       am_cv_prog_cc_c_o=no
 894       break
 895     fi
 896   done
 897   rm -f core conftest*
 898   unset am_i])
 899 if test "$am_cv_prog_cc_c_o" != yes; then
 900    # Losing compiler, so override with the script.
 901    # FIXME: It is wrong to rewrite CC.
 902    # But if we don't then we get into trouble of one sort or another.
 903    # A longer-term fix would be to have automake use am__CC in this case,
 904    # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
 905    CC="$am_aux_dir/compile $CC"
 906 fi
 907 AC_LANG_POP([C])])
 908
 909 # For backward compatibility.
 910 AC_DEFUN_ONCE([AM_PROG_CC_C_O], [AC_REQUIRE([AC_PROG_CC])])
 911
 912 # Copyright (C) 2001-2017 Free Software Foundation, Inc.
 913 #
 914 # This file is free software; the Free Software Foundation
 915 # gives unlimited permission to copy and/or distribute it,
 916 # with or without modifications, as long as this notice is preserved.
 917
 918 # AM_RUN_LOG(COMMAND)
 919 # -------------------
 920 # Run COMMAND, save the exit status in ac_status, and log it.
 921 # (This has been adapted from Autoconf's _AC_RUN_LOG macro.)
 922 AC_DEFUN([AM_RUN_LOG],
 923 [{ echo "$as_me:$LINENO: $1" >&AS_MESSAGE_LOG_FD
 924    ($1) >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD
 925    ac_status=$?
 926    echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
 927    (exit $ac_status); }])
 928
 929 # Check to make sure that the build environment is sane.    -*- Autoconf -*-
 930
 931 # Copyright (C) 1996-2017 Free Software Foundation, Inc.
 932 #
 933 # This file is free software; the Free Software Foundation
 934 # gives unlimited permission to copy and/or distribute it,
 935 # with or without modifications, as long as this notice is preserved.
 936
 937 # AM_SANITY_CHECK
 938 # ---------------
 939 AC_DEFUN([AM_SANITY_CHECK],
 940 [AC_MSG_CHECKING([whether build environment is sane])
 941 # Reject unsafe characters in $srcdir or the absolute working directory
 942 # name.  Accept space and tab only in the latter.
 943 am_lf='
 944 '
 945 case `pwd` in
 946   *[[\\\"\#\$\&\'\`$am_lf]]*)
 947     AC_MSG_ERROR([unsafe absolute working directory name]);;
 948 esac
 949 case $srcdir in
 950   *[[\\\"\#\$\&\'\`$am_lf\ \    ]]*)
 951     AC_MSG_ERROR([unsafe srcdir value: '$srcdir']);;
 952 esac
 953
 954 # Do 'set' in a subshell so we don't clobber the current shell's
 955 # arguments.  Must try -L first in case configure is actually a
 956 # symlink; some systems play weird games with the mod time of symlinks
 957 # (eg FreeBSD returns the mod time of the symlink's containing
 958 # directory).
 959 if (
 960    am_has_slept=no
 961    for am_try in 1 2; do
 962      echo "timestamp, slept: $am_has_slept" > conftest.file
 963      set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
 964      if test "$[*]" = "X"; then
 965         # -L didn't work.
 966         set X `ls -t "$srcdir/configure" conftest.file`
 967      fi
 968      if test "$[*]" != "X $srcdir/configure conftest.file" \
 969         && test "$[*]" != "X conftest.file $srcdir/configure"; then
 970
 971         # If neither matched, then we have a broken ls.  This can happen
 972         # if, for instance, CONFIG_SHELL is bash and it inherits a
 973         # broken ls alias from the environment.  This has actually
 974         # happened.  Such a system could not be considered "sane".
 975         AC_MSG_ERROR([ls -t appears to fail.  Make sure there is not a broken
 976   alias in your environment])
 977      fi
 978      if test "$[2]" = conftest.file || test $am_try -eq 2; then
 979        break
 980      fi
 981      # Just in case.
 982      sleep 1
 983      am_has_slept=yes
 984    done
 985    test "$[2]" = conftest.file
 986    )
 987 then
 988    # Ok.
 989    :
 990 else
 991    AC_MSG_ERROR([newly created file is older than distributed files!
 992 Check your system clock])
 993 fi
 994 AC_MSG_RESULT([yes])
 995 # If we didn't sleep, we still need to ensure time stamps of config.status and
 996 # generated files are strictly newer.
 997 am_sleep_pid=
 998 if grep 'slept: no' conftest.file >/dev/null 2>&1; then
 999   ( sleep 1 ) &
1000   am_sleep_pid=$!
1001 fi
1002 AC_CONFIG_COMMANDS_PRE(
1003   [AC_MSG_CHECKING([that generated files are newer than configure])
1004    if test -n "$am_sleep_pid"; then
1005      # Hide warnings about reused PIDs.
1006      wait $am_sleep_pid 2>/dev/null
1007    fi
1008    AC_MSG_RESULT([done])])
1009 rm -f conftest.file
1010 ])
1011
1012 # Copyright (C) 2009-2017 Free Software Foundation, Inc.
1013 #
1014 # This file is free software; the Free Software Foundation
1015 # gives unlimited permission to copy and/or distribute it,
1016 # with or without modifications, as long as this notice is preserved.
1017
1018 # AM_SILENT_RULES([DEFAULT])
1019 # --------------------------
1020 # Enable less verbose build rules; with the default set to DEFAULT
1021 # ("yes" being less verbose, "no" or empty being verbose).
1022 AC_DEFUN([AM_SILENT_RULES],
1023 [AC_ARG_ENABLE([silent-rules], [dnl
1024 AS_HELP_STRING(
1025   [--enable-silent-rules],
1026   [less verbose build output (undo: "make V=1")])
1027 AS_HELP_STRING(
1028   [--disable-silent-rules],
1029   [verbose build output (undo: "make V=0")])dnl
1030 ])
1031 case $enable_silent_rules in @%:@ (((
1032   yes) AM_DEFAULT_VERBOSITY=0;;
1033    no) AM_DEFAULT_VERBOSITY=1;;
1034     *) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);;
1035 esac
1036 dnl
1037 dnl A few 'make' implementations (e.g., NonStop OS and NextStep)
1038 dnl do not support nested variable expansions.
1039 dnl See automake bug#9928 and bug#10237.
1040 am_make=${MAKE-make}
1041 AC_CACHE_CHECK([whether $am_make supports nested variables],
1042    [am_cv_make_support_nested_variables],
1043    [if AS_ECHO([['TRUE=$(BAR$(V))
1044 BAR0=false
1045 BAR1=true
1046 V=1
1047 am__doit:
1048         @$(TRUE)
1049 .PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then
1050   am_cv_make_support_nested_variables=yes
1051 else
1052   am_cv_make_support_nested_variables=no
1053 fi])
1054 if test $am_cv_make_support_nested_variables = yes; then
1055   dnl Using '$V' instead of '$(V)' breaks IRIX make.
1056   AM_V='$(V)'
1057   AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
1058 else
1059   AM_V=$AM_DEFAULT_VERBOSITY
1060   AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
1061 fi
1062 AC_SUBST([AM_V])dnl
1063 AM_SUBST_NOTMAKE([AM_V])dnl
1064 AC_SUBST([AM_DEFAULT_V])dnl
1065 AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl
1066 AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
1067 AM_BACKSLASH='\'
1068 AC_SUBST([AM_BACKSLASH])dnl
1069 _AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
1070 ])
1071
1072 # Copyright (C) 2001-2017 Free Software Foundation, Inc.
1073 #
1074 # This file is free software; the Free Software Foundation
1075 # gives unlimited permission to copy and/or distribute it,
1076 # with or without modifications, as long as this notice is preserved.
1077
1078 # AM_PROG_INSTALL_STRIP
1079 # ---------------------
1080 # One issue with vendor 'install' (even GNU) is that you can't
1081 # specify the program used to strip binaries.  This is especially
1082 # annoying in cross-compiling environments, where the build's strip
1083 # is unlikely to handle the host's binaries.
1084 # Fortunately install-sh will honor a STRIPPROG variable, so we
1085 # always use install-sh in "make install-strip", and initialize
1086 # STRIPPROG with the value of the STRIP variable (set by the user).
1087 AC_DEFUN([AM_PROG_INSTALL_STRIP],
1088 [AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
1089 # Installed binaries are usually stripped using 'strip' when the user
1090 # run "make install-strip".  However 'strip' might not be the right
1091 # tool to use in cross-compilation environments, therefore Automake
1092 # will honor the 'STRIP' environment variable to overrule this program.
1093 dnl Don't test for $cross_compiling = yes, because it might be 'maybe'.
1094 if test "$cross_compiling" != no; then
1095   AC_CHECK_TOOL([STRIP], [strip], :)
1096 fi
1097 INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
1098 AC_SUBST([INSTALL_STRIP_PROGRAM])])
1099
1100 # Copyright (C) 2006-2017 Free Software Foundation, Inc.
1101 #
1102 # This file is free software; the Free Software Foundation
1103 # gives unlimited permission to copy and/or distribute it,
1104 # with or without modifications, as long as this notice is preserved.
1105
1106 # _AM_SUBST_NOTMAKE(VARIABLE)
1107 # ---------------------------
1108 # Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
1109 # This macro is traced by Automake.
1110 AC_DEFUN([_AM_SUBST_NOTMAKE])
1111
1112 # AM_SUBST_NOTMAKE(VARIABLE)
1113 # --------------------------
1114 # Public sister of _AM_SUBST_NOTMAKE.
1115 AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
1116
1117 # Check how to create a tarball.                            -*- Autoconf -*-
1118
1119 # Copyright (C) 2004-2017 Free Software Foundation, Inc.
1120 #
1121 # This file is free software; the Free Software Foundation
1122 # gives unlimited permission to copy and/or distribute it,
1123 # with or without modifications, as long as this notice is preserved.
1124
1125 # _AM_PROG_TAR(FORMAT)
1126 # --------------------
1127 # Check how to create a tarball in format FORMAT.
1128 # FORMAT should be one of 'v7', 'ustar', or 'pax'.
1129 #
1130 # Substitute a variable $(am__tar) that is a command
1131 # writing to stdout a FORMAT-tarball containing the directory
1132 # $tardir.
1133 #     tardir=directory && $(am__tar) > result.tar
1134 #
1135 # Substitute a variable $(am__untar) that extract such
1136 # a tarball read from stdin.
1137 #     $(am__untar) < result.tar
1138 #
1139 AC_DEFUN([_AM_PROG_TAR],
1140 [# Always define AMTAR for backward compatibility.  Yes, it's still used
1141 # in the wild :-(  We should find a proper way to deprecate it ...
1142 AC_SUBST([AMTAR], ['$${TAR-tar}'])
1143
1144 # We'll loop over all known methods to create a tar archive until one works.
1145 _am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
1146
1147 m4_if([$1], [v7],
1148   [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],
1149
1150   [m4_case([$1],
1151     [ustar],
1152      [# The POSIX 1988 'ustar' format is defined with fixed-size fields.
1153       # There is notably a 21 bits limit for the UID and the GID.  In fact,
1154       # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343
1155       # and bug#13588).
1156       am_max_uid=2097151 # 2^21 - 1
1157       am_max_gid=$am_max_uid
1158       # The $UID and $GID variables are not portable, so we need to resort
1159       # to the POSIX-mandated id(1) utility.  Errors in the 'id' calls
1160       # below are definitely unexpected, so allow the users to see them
1161       # (that is, avoid stderr redirection).
1162       am_uid=`id -u || echo unknown`
1163       am_gid=`id -g || echo unknown`
1164       AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format])
1165       if test $am_uid -le $am_max_uid; then
1166          AC_MSG_RESULT([yes])
1167       else
1168          AC_MSG_RESULT([no])
1169          _am_tools=none
1170       fi
1171       AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format])
1172       if test $am_gid -le $am_max_gid; then
1173          AC_MSG_RESULT([yes])
1174       else
1175         AC_MSG_RESULT([no])
1176         _am_tools=none
1177       fi],
1178
1179   [pax],
1180     [],
1181
1182   [m4_fatal([Unknown tar format])])
1183
1184   AC_MSG_CHECKING([how to create a $1 tar archive])
1185
1186   # Go ahead even if we have the value already cached.  We do so because we
1187   # need to set the values for the 'am__tar' and 'am__untar' variables.
1188   _am_tools=${am_cv_prog_tar_$1-$_am_tools}
1189
1190   for _am_tool in $_am_tools; do
1191     case $_am_tool in
1192     gnutar)
1193       for _am_tar in tar gnutar gtar; do
1194         AM_RUN_LOG([$_am_tar --version]) && break
1195       done
1196       am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
1197       am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
1198       am__untar="$_am_tar -xf -"
1199       ;;
1200     plaintar)
1201       # Must skip GNU tar: if it does not support --format= it doesn't create
1202       # ustar tarball either.
1203       (tar --version) >/dev/null 2>&1 && continue
1204       am__tar='tar chf - "$$tardir"'
1205       am__tar_='tar chf - "$tardir"'
1206       am__untar='tar xf -'
1207       ;;
1208     pax)
1209       am__tar='pax -L -x $1 -w "$$tardir"'
1210       am__tar_='pax -L -x $1 -w "$tardir"'
1211       am__untar='pax -r'
1212       ;;
1213     cpio)
1214       am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
1215       am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
1216       am__untar='cpio -i -H $1 -d'
1217       ;;
1218     none)
1219       am__tar=false
1220       am__tar_=false
1221       am__untar=false
1222       ;;
1223     esac
1224
1225     # If the value was cached, stop now.  We just wanted to have am__tar
1226     # and am__untar set.
1227     test -n "${am_cv_prog_tar_$1}" && break
1228
1229     # tar/untar a dummy directory, and stop if the command works.
1230     rm -rf conftest.dir
1231     mkdir conftest.dir
1232     echo GrepMe > conftest.dir/file
1233     AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
1234     rm -rf conftest.dir
1235     if test -s conftest.tar; then
1236       AM_RUN_LOG([$am__untar <conftest.tar])
1237       AM_RUN_LOG([cat conftest.dir/file])
1238       grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
1239     fi
1240   done
1241   rm -rf conftest.dir
1242
1243   AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
1244   AC_MSG_RESULT([$am_cv_prog_tar_$1])])
1245
1246 AC_SUBST([am__tar])
1247 AC_SUBST([am__untar])
1248 ]) # _AM_PROG_TAR
1249
1250 m4_include([../config/depstand.m4])
1251 m4_include([../config/lead-dot.m4])
1252 m4_include([../config/multi.m4])
1253 m4_include([../config/override.m4])
1254 m4_include([iconv.m4])
1255 m4_include([acinclude.m4])