xref: /freebsd/contrib/file/aclocal.m4 (revision a03411e84728e9b267056fd31c7d1d9d1dc1b01e)
1# generated automatically by aclocal 1.16.5 -*- Autoconf -*-
2
3# Copyright (C) 1996-2021 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
14m4_ifndef([AC_CONFIG_MACRO_DIRS], [m4_defun([_AM_CONFIG_MACRO_DIRS], [])m4_defun([AC_CONFIG_MACRO_DIRS], [_AM_CONFIG_MACRO_DIRS($@)])])
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22
23# Copyright (C) 2002-2021 Free Software Foundation, Inc.
24#
25# This file is free software; the Free Software Foundation
26# gives unlimited permission to copy and/or distribute it,
27# with or without modifications, as long as this notice is preserved.
28
29# AM_AUTOMAKE_VERSION(VERSION)
30# ----------------------------
31# Automake X.Y traces this macro to ensure aclocal.m4 has been
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59# AM_AUX_DIR_EXPAND                                         -*- Autoconf -*-
60
61# Copyright (C) 2001-2021 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
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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.
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110
111# AM_CONDITIONAL                                            -*- Autoconf -*-
112
113# Copyright (C) 1997-2021 Free Software Foundation, Inc.
114#
115# This file is free software; the Free Software Foundation
116# gives unlimited permission to copy and/or distribute it,
117# with or without modifications, as long as this notice is preserved.
118
119# AM_CONDITIONAL(NAME, SHELL-CONDITION)
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143
144# Copyright (C) 1999-2021 Free Software Foundation, Inc.
145#
146# This file is free software; the Free Software Foundation
147# gives unlimited permission to copy and/or distribute it,
148# with or without modifications, as long as this notice is preserved.
149
150
151# There are a few dirty hacks below to avoid letting 'AC_PROG_CC' be
152# written in clear, in which case automake, when reading aclocal.m4,
153# will think it sees a *use*, and therefore will trigger all it's
154# C support machinery.  Also note that it means that autoscan, seeing
155# CC etc. in the Makefile, will ask for an AC_PROG_CC use...
156
157
158# _AM_DEPENDENCIES(NAME)
159# ----------------------
160# See how the compiler implements dependency checking.
161# NAME is "CC", "CXX", "OBJC", "OBJCXX", "UPC", or "GJC".
162# We try a few techniques and use that to set a single cache variable.
163#
164# We don't AC_REQUIRE the corresponding AC_PROG_CC since the latter was
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204  am_cv_$1_dependencies_compiler_type=none
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218  for depmode in $am_compiler_list; do
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227    for i in 1 2 3 4 5 6; do
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255    msvc7 | msvc7msys | msvisualcpp | msvcmsys)
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261      ;;
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269       grep sub/conftst1.h sub/conftest.Po > /dev/null 2>&1 &&
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276      # When given -MP, icc 7.0 and 7.1 complain thusly:
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278      # The diagnosis changed in icc 8.0:
279      #   icc: Command line remark: option '-MP' not supported
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282        am_cv_$1_dependencies_compiler_type=$depmode
283        break
284      fi
285    fi
286  done
287
288  cd ..
289  rm -rf conftest.dir
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294AC_SUBST([$1DEPMODE], [depmode=$am_cv_$1_dependencies_compiler_type])
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299
300
301# AM_SET_DEPDIR
302# -------------
303# Choose a directory name for dependency files.
304# This macro is AC_REQUIREd in _AM_DEPENDENCIES.
305AC_DEFUN([AM_SET_DEPDIR],
306[AC_REQUIRE([AM_SET_LEADING_DOT])dnl
307AC_SUBST([DEPDIR], ["${am__leading_dot}deps"])dnl
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309
310
311# AM_DEP_TRACK
312# ------------
313AC_DEFUN([AM_DEP_TRACK],
314[AC_ARG_ENABLE([dependency-tracking], [dnl
315AS_HELP_STRING(
316  [--enable-dependency-tracking],
317  [do not reject slow dependency extractors])
318AS_HELP_STRING(
319  [--disable-dependency-tracking],
320  [speeds up one-time build])])
321if test "x$enable_dependency_tracking" != xno; then
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323  AMDEPBACKSLASH='\'
324  am__nodep='_no'
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328_AM_SUBST_NOTMAKE([AMDEPBACKSLASH])dnl
329AC_SUBST([am__nodep])dnl
330_AM_SUBST_NOTMAKE([am__nodep])dnl
331])
332
333# Generate code to set up dependency tracking.              -*- Autoconf -*-
334
335# Copyright (C) 1999-2021 Free Software Foundation, Inc.
336#
337# This file is free software; the Free Software Foundation
338# gives unlimited permission to copy and/or distribute it,
339# with or without modifications, as long as this notice is preserved.
340
341# _AM_OUTPUT_DEPENDENCY_COMMANDS
342# ------------------------------
343AC_DEFUN([_AM_OUTPUT_DEPENDENCY_COMMANDS],
344[{
345  # Older Autoconf quotes --file arguments for eval, but not when files
346  # are listed without --file.  Let's play safe and only enable the eval
347  # if we detect the quoting.
348  # TODO: see whether this extra hack can be removed once we start
349  # requiring Autoconf 2.70 or later.
350  AS_CASE([$CONFIG_FILES],
351          [*\'*], [eval set x "$CONFIG_FILES"],
352          [*], [set x $CONFIG_FILES])
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355  am_rc=0
356  for am_mf
357  do
358    # Strip MF so we end up with the name of the file.
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360    # Check whether this is an Automake generated Makefile which includes
361    # dependency-tracking related rules and includes.
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364    sed -n 's,^am--depfiles:.*,X,p' "$am_mf" | grep X >/dev/null 2>&1 \
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368    AM_RUN_LOG([cd "$am_dirpart" \
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371  done
372  if test $am_rc -ne 0; then
373    AC_MSG_FAILURE([Something went wrong bootstrapping makefile fragments
374    for automatic dependency tracking.  If GNU make was not used, consider
375    re-running the configure script with MAKE="gmake" (or whatever is
376    necessary).  You can also try re-running configure with the
377    '--disable-dependency-tracking' option to at least be able to build
378    the package (albeit without support for automatic dependency tracking).])
379  fi
380  AS_UNSET([am_dirpart])
381  AS_UNSET([am_filepart])
382  AS_UNSET([am_mf])
383  AS_UNSET([am_rc])
384  rm -f conftest-deps.mk
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386])# _AM_OUTPUT_DEPENDENCY_COMMANDS
387
388
389# AM_OUTPUT_DEPENDENCY_COMMANDS
390# -----------------------------
391# This macro should only be invoked once -- use via AC_REQUIRE.
392#
393# This code is only required when automatic dependency tracking is enabled.
394# This creates each '.Po' and '.Plo' makefile fragment that we'll need in
395# order to bootstrap the dependency handling code.
396AC_DEFUN([AM_OUTPUT_DEPENDENCY_COMMANDS],
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398     [test x"$AMDEP_TRUE" != x"" || _AM_OUTPUT_DEPENDENCY_COMMANDS],
399     [AMDEP_TRUE="$AMDEP_TRUE" MAKE="${MAKE-make}"])])
400
401# Do all the work for Automake.                             -*- Autoconf -*-
402
403# Copyright (C) 1996-2021 Free Software Foundation, Inc.
404#
405# This file is free software; the Free Software Foundation
406# gives unlimited permission to copy and/or distribute it,
407# with or without modifications, as long as this notice is preserved.
408
409# This macro actually does too much.  Some checks are only needed if
410# your package does certain things.  But this isn't really a big deal.
411
412dnl Redefine AC_PROG_CC to automatically invoke _AM_PROG_CC_C_O.
413m4_define([AC_PROG_CC],
414m4_defn([AC_PROG_CC])
415[_AM_PROG_CC_C_O
416])
417
418# AM_INIT_AUTOMAKE(PACKAGE, VERSION, [NO-DEFINE])
419# AM_INIT_AUTOMAKE([OPTIONS])
420# -----------------------------------------------
421# The call with PACKAGE and VERSION arguments is the old style
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425# We support both call styles for the transition.  After
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440if test "`cd $srcdir && pwd`" != "`pwd`"; then
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443  AC_SUBST([am__isrc], [' -I$(srcdir)'])_AM_SUBST_NOTMAKE([am__isrc])dnl
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450# test whether we have cygpath
451if test -z "$CYGPATH_W"; then
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453    CYGPATH_W='cygpath -w'
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455    CYGPATH_W=echo
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460# Define the identity of the package.
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466 AC_SUBST([PACKAGE], [$1])dnl
467 AC_SUBST([VERSION], [$2])],
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474 AC_SUBST([PACKAGE], ['AC_PACKAGE_TARNAME'])dnl
475 AC_SUBST([VERSION], ['AC_PACKAGE_VERSION'])])dnl
476
477_AM_IF_OPTION([no-define],,
478[AC_DEFINE_UNQUOTED([PACKAGE], ["$PACKAGE"], [Name of package])
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480
481# Some tools Automake needs.
482AC_REQUIRE([AM_SANITY_CHECK])dnl
483AC_REQUIRE([AC_ARG_PROGRAM])dnl
484AM_MISSING_PROG([ACLOCAL], [aclocal-${am__api_version}])
485AM_MISSING_PROG([AUTOCONF], [autoconf])
486AM_MISSING_PROG([AUTOMAKE], [automake-${am__api_version}])
487AM_MISSING_PROG([AUTOHEADER], [autoheader])
488AM_MISSING_PROG([MAKEINFO], [makeinfo])
489AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
490AC_REQUIRE([AM_PROG_INSTALL_STRIP])dnl
491AC_REQUIRE([AC_PROG_MKDIR_P])dnl
492# For better backward compatibility.  To be removed once Automake 1.9.x
493# dies out for good.  For more background, see:
494# <https://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
495# <https://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
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501AC_REQUIRE([AM_SET_LEADING_DOT])dnl
502_AM_IF_OPTION([tar-ustar], [_AM_PROG_TAR([ustar])],
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510AC_PROVIDE_IFELSE([AC_PROG_CXX],
511		  [_AM_DEPENDENCIES([CXX])],
512		  [m4_define([AC_PROG_CXX],
513			     m4_defn([AC_PROG_CXX])[_AM_DEPENDENCIES([CXX])])])dnl
514AC_PROVIDE_IFELSE([AC_PROG_OBJC],
515		  [_AM_DEPENDENCIES([OBJC])],
516		  [m4_define([AC_PROG_OBJC],
517			     m4_defn([AC_PROG_OBJC])[_AM_DEPENDENCIES([OBJC])])])dnl
518AC_PROVIDE_IFELSE([AC_PROG_OBJCXX],
519		  [_AM_DEPENDENCIES([OBJCXX])],
520		  [m4_define([AC_PROG_OBJCXX],
521			     m4_defn([AC_PROG_OBJCXX])[_AM_DEPENDENCIES([OBJCXX])])])dnl
522])
523# Variables for tags utilities; see am/tags.am
524if test -z "$CTAGS"; then
525  CTAGS=ctags
526fi
527AC_SUBST([CTAGS])
528if test -z "$ETAGS"; then
529  ETAGS=etags
530fi
531AC_SUBST([ETAGS])
532if test -z "$CSCOPE"; then
533  CSCOPE=cscope
534fi
535AC_SUBST([CSCOPE])
536
537AC_REQUIRE([AM_SILENT_RULES])dnl
538dnl The testsuite driver may need to know about EXEEXT, so add the
539dnl 'am__EXEEXT' conditional if _AM_COMPILER_EXEEXT was seen.  This
540dnl macro is hooked onto _AC_COMPILER_EXEEXT early, see below.
541AC_CONFIG_COMMANDS_PRE(dnl
542[m4_provide_if([_AM_COMPILER_EXEEXT],
543  [AM_CONDITIONAL([am__EXEEXT], [test -n "$EXEEXT"])])])dnl
544
545# POSIX will say in a future version that running "rm -f" with no argument
546# is OK; and we want to be able to make that assumption in our Makefile
547# recipes.  So use an aggressive probe to check that the usage we want is
548# actually supported "in the wild" to an acceptable degree.
549# See automake bug#10828.
550# To make any issue more visible, cause the running configure to be aborted
551# by default if the 'rm' program in use doesn't match our expectations; the
552# user can still override this though.
553if rm -f && rm -fr && rm -rf; then : OK; else
554  cat >&2 <<'END'
555Oops!
556
557Your 'rm' program seems unable to run without file operands specified
558on the command line, even when the '-f' option is present.  This is contrary
559to the behaviour of most rm programs out there, and not conforming with
560the upcoming POSIX standard: <http://austingroupbugs.net/view.php?id=542>
561
562Please tell bug-automake@gnu.org about your system, including the value
563of your $PATH and any error possibly output before this message.  This
564can help us improve future automake versions.
565
566END
567  if test x"$ACCEPT_INFERIOR_RM_PROGRAM" = x"yes"; then
568    echo 'Configuration will proceed anyway, since you have set the' >&2
569    echo 'ACCEPT_INFERIOR_RM_PROGRAM variable to "yes"' >&2
570    echo >&2
571  else
572    cat >&2 <<'END'
573Aborting the configuration process, to ensure you take notice of the issue.
574
575You can download and install GNU coreutils to get an 'rm' implementation
576that behaves properly: <https://www.gnu.org/software/coreutils/>.
577
578If you want to complete the configuration process using your problematic
579'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM
580to "yes", and re-run configure.
581
582END
583    AC_MSG_ERROR([Your 'rm' program is bad, sorry.])
584  fi
585fi
586dnl The trailing newline in this macro's definition is deliberate, for
587dnl backward compatibility and to allow trailing 'dnl'-style comments
588dnl after the AM_INIT_AUTOMAKE invocation. See automake bug#16841.
589])
590
591dnl Hook into '_AC_COMPILER_EXEEXT' early to learn its expansion.  Do not
592dnl add the conditional right here, as _AC_COMPILER_EXEEXT may be further
593dnl mangled by Autoconf and run in a shell conditional statement.
594m4_define([_AC_COMPILER_EXEEXT],
595m4_defn([_AC_COMPILER_EXEEXT])[m4_provide([_AM_COMPILER_EXEEXT])])
596
597# When config.status generates a header, we must update the stamp-h file.
598# This file resides in the same directory as the config header
599# that is generated.  The stamp files are numbered to have different names.
600
601# Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the
602# loop where config.status creates the headers, so we can generate
603# our stamp files there.
604AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK],
605[# Compute $1's index in $config_headers.
606_am_arg=$1
607_am_stamp_count=1
608for _am_header in $config_headers :; do
609  case $_am_header in
610    $_am_arg | $_am_arg:* )
611      break ;;
612    * )
613      _am_stamp_count=`expr $_am_stamp_count + 1` ;;
614  esac
615done
616echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
617
618# Copyright (C) 2001-2021 Free Software Foundation, Inc.
619#
620# This file is free software; the Free Software Foundation
621# gives unlimited permission to copy and/or distribute it,
622# with or without modifications, as long as this notice is preserved.
623
624# AM_PROG_INSTALL_SH
625# ------------------
626# Define $install_sh.
627AC_DEFUN([AM_PROG_INSTALL_SH],
628[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
629if test x"${install_sh+set}" != xset; then
630  case $am_aux_dir in
631  *\ * | *\	*)
632    install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
633  *)
634    install_sh="\${SHELL} $am_aux_dir/install-sh"
635  esac
636fi
637AC_SUBST([install_sh])])
638
639# Copyright (C) 2003-2021 Free Software Foundation, Inc.
640#
641# This file is free software; the Free Software Foundation
642# gives unlimited permission to copy and/or distribute it,
643# with or without modifications, as long as this notice is preserved.
644
645# Check whether the underlying file-system supports filenames
646# with a leading dot.  For instance MS-DOS doesn't.
647AC_DEFUN([AM_SET_LEADING_DOT],
648[rm -rf .tst 2>/dev/null
649mkdir .tst 2>/dev/null
650if test -d .tst; then
651  am__leading_dot=.
652else
653  am__leading_dot=_
654fi
655rmdir .tst 2>/dev/null
656AC_SUBST([am__leading_dot])])
657
658# Check to see how 'make' treats includes.	            -*- Autoconf -*-
659
660# Copyright (C) 2001-2021 Free Software Foundation, Inc.
661#
662# This file is free software; the Free Software Foundation
663# gives unlimited permission to copy and/or distribute it,
664# with or without modifications, as long as this notice is preserved.
665
666# AM_MAKE_INCLUDE()
667# -----------------
668# Check whether make has an 'include' directive that can support all
669# the idioms we need for our automatic dependency tracking code.
670AC_DEFUN([AM_MAKE_INCLUDE],
671[AC_MSG_CHECKING([whether ${MAKE-make} supports the include directive])
672cat > confinc.mk << 'END'
673am__doit:
674	@echo this is the am__doit target >confinc.out
675.PHONY: am__doit
676END
677am__include="#"
678am__quote=
679# BSD make does it like this.
680echo '.include "confinc.mk" # ignored' > confmf.BSD
681# Other make implementations (GNU, Solaris 10, AIX) do it like this.
682echo 'include confinc.mk # ignored' > confmf.GNU
683_am_result=no
684for s in GNU BSD; do
685  AM_RUN_LOG([${MAKE-make} -f confmf.$s && cat confinc.out])
686  AS_CASE([$?:`cat confinc.out 2>/dev/null`],
687      ['0:this is the am__doit target'],
688      [AS_CASE([$s],
689          [BSD], [am__include='.include' am__quote='"'],
690          [am__include='include' am__quote=''])])
691  if test "$am__include" != "#"; then
692    _am_result="yes ($s style)"
693    break
694  fi
695done
696rm -f confinc.* confmf.*
697AC_MSG_RESULT([${_am_result}])
698AC_SUBST([am__include])])
699AC_SUBST([am__quote])])
700
701# Fake the existence of programs that GNU maintainers use.  -*- Autoconf -*-
702
703# Copyright (C) 1997-2021 Free Software Foundation, Inc.
704#
705# This file is free software; the Free Software Foundation
706# gives unlimited permission to copy and/or distribute it,
707# with or without modifications, as long as this notice is preserved.
708
709# AM_MISSING_PROG(NAME, PROGRAM)
710# ------------------------------
711AC_DEFUN([AM_MISSING_PROG],
712[AC_REQUIRE([AM_MISSING_HAS_RUN])
713$1=${$1-"${am_missing_run}$2"}
714AC_SUBST($1)])
715
716# AM_MISSING_HAS_RUN
717# ------------------
718# Define MISSING if not defined so far and test if it is modern enough.
719# If it is, set am_missing_run to use it, otherwise, to nothing.
720AC_DEFUN([AM_MISSING_HAS_RUN],
721[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
722AC_REQUIRE_AUX_FILE([missing])dnl
723if test x"${MISSING+set}" != xset; then
724  MISSING="\${SHELL} '$am_aux_dir/missing'"
725fi
726# Use eval to expand $SHELL
727if eval "$MISSING --is-lightweight"; then
728  am_missing_run="$MISSING "
729else
730  am_missing_run=
731  AC_MSG_WARN(['missing' script is too old or missing])
732fi
733])
734
735# Helper functions for option handling.                     -*- Autoconf -*-
736
737# Copyright (C) 2001-2021 Free Software Foundation, Inc.
738#
739# This file is free software; the Free Software Foundation
740# gives unlimited permission to copy and/or distribute it,
741# with or without modifications, as long as this notice is preserved.
742
743# _AM_MANGLE_OPTION(NAME)
744# -----------------------
745AC_DEFUN([_AM_MANGLE_OPTION],
746[[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
747
748# _AM_SET_OPTION(NAME)
749# --------------------
750# Set option NAME.  Presently that only means defining a flag for this option.
751AC_DEFUN([_AM_SET_OPTION],
752[m4_define(_AM_MANGLE_OPTION([$1]), [1])])
753
754# _AM_SET_OPTIONS(OPTIONS)
755# ------------------------
756# OPTIONS is a space-separated list of Automake options.
757AC_DEFUN([_AM_SET_OPTIONS],
758[m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
759
760# _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
761# -------------------------------------------
762# Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
763AC_DEFUN([_AM_IF_OPTION],
764[m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
765
766# Copyright (C) 1999-2021 Free Software Foundation, Inc.
767#
768# This file is free software; the Free Software Foundation
769# gives unlimited permission to copy and/or distribute it,
770# with or without modifications, as long as this notice is preserved.
771
772# _AM_PROG_CC_C_O
773# ---------------
774# Like AC_PROG_CC_C_O, but changed for automake.  We rewrite AC_PROG_CC
775# to automatically call this.
776AC_DEFUN([_AM_PROG_CC_C_O],
777[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
778AC_REQUIRE_AUX_FILE([compile])dnl
779AC_LANG_PUSH([C])dnl
780AC_CACHE_CHECK(
781  [whether $CC understands -c and -o together],
782  [am_cv_prog_cc_c_o],
783  [AC_LANG_CONFTEST([AC_LANG_PROGRAM([])])
784  # Make sure it works both with $CC and with simple cc.
785  # Following AC_PROG_CC_C_O, we do the test twice because some
786  # compilers refuse to overwrite an existing .o file with -o,
787  # though they will create one.
788  am_cv_prog_cc_c_o=yes
789  for am_i in 1 2; do
790    if AM_RUN_LOG([$CC -c conftest.$ac_ext -o conftest2.$ac_objext]) \
791         && test -f conftest2.$ac_objext; then
792      : OK
793    else
794      am_cv_prog_cc_c_o=no
795      break
796    fi
797  done
798  rm -f core conftest*
799  unset am_i])
800if test "$am_cv_prog_cc_c_o" != yes; then
801   # Losing compiler, so override with the script.
802   # FIXME: It is wrong to rewrite CC.
803   # But if we don't then we get into trouble of one sort or another.
804   # A longer-term fix would be to have automake use am__CC in this case,
805   # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
806   CC="$am_aux_dir/compile $CC"
807fi
808AC_LANG_POP([C])])
809
810# For backward compatibility.
811AC_DEFUN_ONCE([AM_PROG_CC_C_O], [AC_REQUIRE([AC_PROG_CC])])
812
813# Copyright (C) 2001-2021 Free Software Foundation, Inc.
814#
815# This file is free software; the Free Software Foundation
816# gives unlimited permission to copy and/or distribute it,
817# with or without modifications, as long as this notice is preserved.
818
819# AM_RUN_LOG(COMMAND)
820# -------------------
821# Run COMMAND, save the exit status in ac_status, and log it.
822# (This has been adapted from Autoconf's _AC_RUN_LOG macro.)
823AC_DEFUN([AM_RUN_LOG],
824[{ echo "$as_me:$LINENO: $1" >&AS_MESSAGE_LOG_FD
825   ($1) >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD
826   ac_status=$?
827   echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
828   (exit $ac_status); }])
829
830# Check to make sure that the build environment is sane.    -*- Autoconf -*-
831
832# Copyright (C) 1996-2021 Free Software Foundation, Inc.
833#
834# This file is free software; the Free Software Foundation
835# gives unlimited permission to copy and/or distribute it,
836# with or without modifications, as long as this notice is preserved.
837
838# AM_SANITY_CHECK
839# ---------------
840AC_DEFUN([AM_SANITY_CHECK],
841[AC_MSG_CHECKING([whether build environment is sane])
842# Reject unsafe characters in $srcdir or the absolute working directory
843# name.  Accept space and tab only in the latter.
844am_lf='
845'
846case `pwd` in
847  *[[\\\"\#\$\&\'\`$am_lf]]*)
848    AC_MSG_ERROR([unsafe absolute working directory name]);;
849esac
850case $srcdir in
851  *[[\\\"\#\$\&\'\`$am_lf\ \	]]*)
852    AC_MSG_ERROR([unsafe srcdir value: '$srcdir']);;
853esac
854
855# Do 'set' in a subshell so we don't clobber the current shell's
856# arguments.  Must try -L first in case configure is actually a
857# symlink; some systems play weird games with the mod time of symlinks
858# (eg FreeBSD returns the mod time of the symlink's containing
859# directory).
860if (
861   am_has_slept=no
862   for am_try in 1 2; do
863     echo "timestamp, slept: $am_has_slept" > conftest.file
864     set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
865     if test "$[*]" = "X"; then
866	# -L didn't work.
867	set X `ls -t "$srcdir/configure" conftest.file`
868     fi
869     if test "$[*]" != "X $srcdir/configure conftest.file" \
870	&& test "$[*]" != "X conftest.file $srcdir/configure"; then
871
872	# If neither matched, then we have a broken ls.  This can happen
873	# if, for instance, CONFIG_SHELL is bash and it inherits a
874	# broken ls alias from the environment.  This has actually
875	# happened.  Such a system could not be considered "sane".
876	AC_MSG_ERROR([ls -t appears to fail.  Make sure there is not a broken
877  alias in your environment])
878     fi
879     if test "$[2]" = conftest.file || test $am_try -eq 2; then
880       break
881     fi
882     # Just in case.
883     sleep 1
884     am_has_slept=yes
885   done
886   test "$[2]" = conftest.file
887   )
888then
889   # Ok.
890   :
891else
892   AC_MSG_ERROR([newly created file is older than distributed files!
893Check your system clock])
894fi
895AC_MSG_RESULT([yes])
896# If we didn't sleep, we still need to ensure time stamps of config.status and
897# generated files are strictly newer.
898am_sleep_pid=
899if grep 'slept: no' conftest.file >/dev/null 2>&1; then
900  ( sleep 1 ) &
901  am_sleep_pid=$!
902fi
903AC_CONFIG_COMMANDS_PRE(
904  [AC_MSG_CHECKING([that generated files are newer than configure])
905   if test -n "$am_sleep_pid"; then
906     # Hide warnings about reused PIDs.
907     wait $am_sleep_pid 2>/dev/null
908   fi
909   AC_MSG_RESULT([done])])
910rm -f conftest.file
911])
912
913# Copyright (C) 2009-2021 Free Software Foundation, Inc.
914#
915# This file is free software; the Free Software Foundation
916# gives unlimited permission to copy and/or distribute it,
917# with or without modifications, as long as this notice is preserved.
918
919# AM_SILENT_RULES([DEFAULT])
920# --------------------------
921# Enable less verbose build rules; with the default set to DEFAULT
922# ("yes" being less verbose, "no" or empty being verbose).
923AC_DEFUN([AM_SILENT_RULES],
924[AC_ARG_ENABLE([silent-rules], [dnl
925AS_HELP_STRING(
926  [--enable-silent-rules],
927  [less verbose build output (undo: "make V=1")])
928AS_HELP_STRING(
929  [--disable-silent-rules],
930  [verbose build output (undo: "make V=0")])dnl
931])
932case $enable_silent_rules in @%:@ (((
933  yes) AM_DEFAULT_VERBOSITY=0;;
934   no) AM_DEFAULT_VERBOSITY=1;;
935    *) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);;
936esac
937dnl
938dnl A few 'make' implementations (e.g., NonStop OS and NextStep)
939dnl do not support nested variable expansions.
940dnl See automake bug#9928 and bug#10237.
941am_make=${MAKE-make}
942AC_CACHE_CHECK([whether $am_make supports nested variables],
943   [am_cv_make_support_nested_variables],
944   [if AS_ECHO([['TRUE=$(BAR$(V))
945BAR0=false
946BAR1=true
947V=1
948am__doit:
949	@$(TRUE)
950.PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then
951  am_cv_make_support_nested_variables=yes
952else
953  am_cv_make_support_nested_variables=no
954fi])
955if test $am_cv_make_support_nested_variables = yes; then
956  dnl Using '$V' instead of '$(V)' breaks IRIX make.
957  AM_V='$(V)'
958  AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
959else
960  AM_V=$AM_DEFAULT_VERBOSITY
961  AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
962fi
963AC_SUBST([AM_V])dnl
964AM_SUBST_NOTMAKE([AM_V])dnl
965AC_SUBST([AM_DEFAULT_V])dnl
966AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl
967AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
968AM_BACKSLASH='\'
969AC_SUBST([AM_BACKSLASH])dnl
970_AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
971])
972
973# Copyright (C) 2001-2021 Free Software Foundation, Inc.
974#
975# This file is free software; the Free Software Foundation
976# gives unlimited permission to copy and/or distribute it,
977# with or without modifications, as long as this notice is preserved.
978
979# AM_PROG_INSTALL_STRIP
980# ---------------------
981# One issue with vendor 'install' (even GNU) is that you can't
982# specify the program used to strip binaries.  This is especially
983# annoying in cross-compiling environments, where the build's strip
984# is unlikely to handle the host's binaries.
985# Fortunately install-sh will honor a STRIPPROG variable, so we
986# always use install-sh in "make install-strip", and initialize
987# STRIPPROG with the value of the STRIP variable (set by the user).
988AC_DEFUN([AM_PROG_INSTALL_STRIP],
989[AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
990# Installed binaries are usually stripped using 'strip' when the user
991# run "make install-strip".  However 'strip' might not be the right
992# tool to use in cross-compilation environments, therefore Automake
993# will honor the 'STRIP' environment variable to overrule this program.
994dnl Don't test for $cross_compiling = yes, because it might be 'maybe'.
995if test "$cross_compiling" != no; then
996  AC_CHECK_TOOL([STRIP], [strip], :)
997fi
998INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
999AC_SUBST([INSTALL_STRIP_PROGRAM])])
1000
1001# Copyright (C) 2006-2021 Free Software Foundation, Inc.
1002#
1003# This file is free software; the Free Software Foundation
1004# gives unlimited permission to copy and/or distribute it,
1005# with or without modifications, as long as this notice is preserved.
1006
1007# _AM_SUBST_NOTMAKE(VARIABLE)
1008# ---------------------------
1009# Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
1010# This macro is traced by Automake.
1011AC_DEFUN([_AM_SUBST_NOTMAKE])
1012
1013# AM_SUBST_NOTMAKE(VARIABLE)
1014# --------------------------
1015# Public sister of _AM_SUBST_NOTMAKE.
1016AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
1017
1018# Check how to create a tarball.                            -*- Autoconf -*-
1019
1020# Copyright (C) 2004-2021 Free Software Foundation, Inc.
1021#
1022# This file is free software; the Free Software Foundation
1023# gives unlimited permission to copy and/or distribute it,
1024# with or without modifications, as long as this notice is preserved.
1025
1026# _AM_PROG_TAR(FORMAT)
1027# --------------------
1028# Check how to create a tarball in format FORMAT.
1029# FORMAT should be one of 'v7', 'ustar', or 'pax'.
1030#
1031# Substitute a variable $(am__tar) that is a command
1032# writing to stdout a FORMAT-tarball containing the directory
1033# $tardir.
1034#     tardir=directory && $(am__tar) > result.tar
1035#
1036# Substitute a variable $(am__untar) that extract such
1037# a tarball read from stdin.
1038#     $(am__untar) < result.tar
1039#
1040AC_DEFUN([_AM_PROG_TAR],
1041[# Always define AMTAR for backward compatibility.  Yes, it's still used
1042# in the wild :-(  We should find a proper way to deprecate it ...
1043AC_SUBST([AMTAR], ['$${TAR-tar}'])
1044
1045# We'll loop over all known methods to create a tar archive until one works.
1046_am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
1047
1048m4_if([$1], [v7],
1049  [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],
1050
1051  [m4_case([$1],
1052    [ustar],
1053     [# The POSIX 1988 'ustar' format is defined with fixed-size fields.
1054      # There is notably a 21 bits limit for the UID and the GID.  In fact,
1055      # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343
1056      # and bug#13588).
1057      am_max_uid=2097151 # 2^21 - 1
1058      am_max_gid=$am_max_uid
1059      # The $UID and $GID variables are not portable, so we need to resort
1060      # to the POSIX-mandated id(1) utility.  Errors in the 'id' calls
1061      # below are definitely unexpected, so allow the users to see them
1062      # (that is, avoid stderr redirection).
1063      am_uid=`id -u || echo unknown`
1064      am_gid=`id -g || echo unknown`
1065      AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format])
1066      if test $am_uid -le $am_max_uid; then
1067         AC_MSG_RESULT([yes])
1068      else
1069         AC_MSG_RESULT([no])
1070         _am_tools=none
1071      fi
1072      AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format])
1073      if test $am_gid -le $am_max_gid; then
1074         AC_MSG_RESULT([yes])
1075      else
1076        AC_MSG_RESULT([no])
1077        _am_tools=none
1078      fi],
1079
1080  [pax],
1081    [],
1082
1083  [m4_fatal([Unknown tar format])])
1084
1085  AC_MSG_CHECKING([how to create a $1 tar archive])
1086
1087  # Go ahead even if we have the value already cached.  We do so because we
1088  # need to set the values for the 'am__tar' and 'am__untar' variables.
1089  _am_tools=${am_cv_prog_tar_$1-$_am_tools}
1090
1091  for _am_tool in $_am_tools; do
1092    case $_am_tool in
1093    gnutar)
1094      for _am_tar in tar gnutar gtar; do
1095        AM_RUN_LOG([$_am_tar --version]) && break
1096      done
1097      am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
1098      am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
1099      am__untar="$_am_tar -xf -"
1100      ;;
1101    plaintar)
1102      # Must skip GNU tar: if it does not support --format= it doesn't create
1103      # ustar tarball either.
1104      (tar --version) >/dev/null 2>&1 && continue
1105      am__tar='tar chf - "$$tardir"'
1106      am__tar_='tar chf - "$tardir"'
1107      am__untar='tar xf -'
1108      ;;
1109    pax)
1110      am__tar='pax -L -x $1 -w "$$tardir"'
1111      am__tar_='pax -L -x $1 -w "$tardir"'
1112      am__untar='pax -r'
1113      ;;
1114    cpio)
1115      am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
1116      am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
1117      am__untar='cpio -i -H $1 -d'
1118      ;;
1119    none)
1120      am__tar=false
1121      am__tar_=false
1122      am__untar=false
1123      ;;
1124    esac
1125
1126    # If the value was cached, stop now.  We just wanted to have am__tar
1127    # and am__untar set.
1128    test -n "${am_cv_prog_tar_$1}" && break
1129
1130    # tar/untar a dummy directory, and stop if the command works.
1131    rm -rf conftest.dir
1132    mkdir conftest.dir
1133    echo GrepMe > conftest.dir/file
1134    AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
1135    rm -rf conftest.dir
1136    if test -s conftest.tar; then
1137      AM_RUN_LOG([$am__untar <conftest.tar])
1138      AM_RUN_LOG([cat conftest.dir/file])
1139      grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
1140    fi
1141  done
1142  rm -rf conftest.dir
1143
1144  AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
1145  AC_MSG_RESULT([$am_cv_prog_tar_$1])])
1146
1147AC_SUBST([am__tar])
1148AC_SUBST([am__untar])
1149]) # _AM_PROG_TAR
1150
1151m4_include([m4/libtool.m4])
1152m4_include([m4/ltoptions.m4])
1153m4_include([m4/ltsugar.m4])
1154m4_include([m4/ltversion.m4])
1155m4_include([m4/lt~obsolete.m4])
1156m4_include([m4/visibility.m4])
1157m4_include([acinclude.m4])
1158