xref: /freebsd/contrib/openpam/aclocal.m4 (revision 45538173c120eadca115fd7e56c657905bf73771)
1# generated automatically by aclocal 1.17 -*- Autoconf -*-
2
3# Copyright (C) 1996-2024 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) 2002-2024 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)
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59# AM_AUX_DIR_EXPAND                                         -*- Autoconf -*-
60
61# Copyright (C) 2001-2024 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
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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
105AC_DEFUN([AM_AUX_DIR_EXPAND],
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110
111# AM_COND_IF                                            -*- Autoconf -*-
112
113# Copyright (C) 2008-2024 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
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125m4_define([_AM_COND_ELSE])
126m4_define([_AM_COND_ENDIF])
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128# AM_COND_IF(COND, [IF-TRUE], [IF-FALSE])
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147
148# AM_CONDITIONAL                                            -*- Autoconf -*-
149
150# Copyright (C) 1997-2024 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# -------------------------------------
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159AC_DEFUN([AM_CONDITIONAL],
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180
181# Copyright (C) 1999-2024 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
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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".
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200#
201# We don't AC_REQUIRE the corresponding AC_PROG_CC since the latter was
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240
241  am_cv_$1_dependencies_compiler_type=none
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252     *\ -arch\ *\ -arch\ *) am__universal=true ;;
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255  for depmode in $am_compiler_list; do
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260    # We need to recreate these files for each test, as the compiler may
261    # overwrite some of them when testing with obscure command lines.
262    # This happens at least with the AIX C compiler.
263    : > sub/conftest.c
264    for i in 1 2 3 4 5 6; do
265      echo '#include "conftst'$i'.h"' >> sub/conftest.c
266      # Using ": > sub/conftst$i.h" creates only sub/conftst1.h with
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289	break
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291      ;;
292    msvc7 | msvc7msys | msvisualcpp | msvcmsys)
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295      # so weak that their functioning should not be impacted.
296      am__obj=conftest.${OBJEXT-o}
297      am__minus_obj=
298      ;;
299    none) break ;;
300    esac
301    if depmode=$depmode \
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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
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313      # When given -MP, icc 7.0 and 7.1 complain thus:
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 ||
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319        am_cv_$1_dependencies_compiler_type=$depmode
320        break
321      fi
322    fi
323  done
324
325  cd ..
326  rm -rf conftest.dir
327else
328  am_cv_$1_dependencies_compiler_type=none
329fi
330])
331AC_SUBST([$1DEPMODE], [depmode=$am_cv_$1_dependencies_compiler_type])
332AM_CONDITIONAL([am__fastdep$1], [
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335])
336
337
338# AM_SET_DEPDIR
339# -------------
340# Choose a directory name for dependency files.
341# This macro is AC_REQUIREd in _AM_DEPENDENCIES.
342AC_DEFUN([AM_SET_DEPDIR],
343[AC_REQUIRE([AM_SET_LEADING_DOT])dnl
344AC_SUBST([DEPDIR], ["${am__leading_dot}deps"])dnl
345])
346
347
348# AM_DEP_TRACK
349# ------------
350AC_DEFUN([AM_DEP_TRACK],
351[AC_ARG_ENABLE([dependency-tracking], [dnl
352AS_HELP_STRING(
353  [--enable-dependency-tracking],
354  [do not reject slow dependency extractors])
355AS_HELP_STRING(
356  [--disable-dependency-tracking],
357  [speeds up one-time build])])
358if test "x$enable_dependency_tracking" != xno; then
359  am_depcomp="$ac_aux_dir/depcomp"
360  AMDEPBACKSLASH='\'
361  am__nodep='_no'
362fi
363AM_CONDITIONAL([AMDEP], [test "x$enable_dependency_tracking" != xno])
364AC_SUBST([AMDEPBACKSLASH])dnl
365_AM_SUBST_NOTMAKE([AMDEPBACKSLASH])dnl
366AC_SUBST([am__nodep])dnl
367_AM_SUBST_NOTMAKE([am__nodep])dnl
368])
369
370# Generate code to set up dependency tracking.              -*- Autoconf -*-
371
372# Copyright (C) 1999-2024 Free Software Foundation, Inc.
373#
374# This file is free software; the Free Software Foundation
375# gives unlimited permission to copy and/or distribute it,
376# with or without modifications, as long as this notice is preserved.
377
378# _AM_OUTPUT_DEPENDENCY_COMMANDS
379# ------------------------------
380AC_DEFUN([_AM_OUTPUT_DEPENDENCY_COMMANDS],
381[{
382  # Older Autoconf quotes --file arguments for eval, but not when files
383  # are listed without --file.  Let's play safe and only enable the eval
384  # if we detect the quoting.
385  # TODO: see whether this extra hack can be removed once we start
386  # requiring Autoconf 2.70 or later.
387  AS_CASE([$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 $am_rc -ne 0; then
410    AC_MSG_FAILURE([Something went wrong bootstrapping makefile fragments
411    for automatic dependency tracking.  If GNU make was not used, consider
412    re-running the configure script with MAKE="gmake" (or whatever is
413    necessary).  You can also try re-running configure with the
414    '--disable-dependency-tracking' option to at least be able to build
415    the package (albeit without support for automatic dependency tracking).])
416  fi
417  AS_UNSET([am_dirpart])
418  AS_UNSET([am_filepart])
419  AS_UNSET([am_mf])
420  AS_UNSET([am_rc])
421  rm -f conftest-deps.mk
422}
423])# _AM_OUTPUT_DEPENDENCY_COMMANDS
424
425
426# AM_OUTPUT_DEPENDENCY_COMMANDS
427# -----------------------------
428# This macro should only be invoked once -- use via AC_REQUIRE.
429#
430# This code is only required when automatic dependency tracking is enabled.
431# This creates each '.Po' and '.Plo' makefile fragment that we'll need in
432# order to bootstrap the dependency handling code.
433AC_DEFUN([AM_OUTPUT_DEPENDENCY_COMMANDS],
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435     [test x"$AMDEP_TRUE" != x"" || _AM_OUTPUT_DEPENDENCY_COMMANDS],
436     [AMDEP_TRUE="$AMDEP_TRUE" MAKE="${MAKE-make}"])])
437
438# Do all the work for Automake.                             -*- Autoconf -*-
439
440# Copyright (C) 1996-2024 Free Software Foundation, Inc.
441#
442# This file is free software; the Free Software Foundation
443# gives unlimited permission to copy and/or distribute it,
444# with or without modifications, as long as this notice is preserved.
445
446# This macro actually does too much.  Some checks are only needed if
447# your package does certain things.  But this isn't really a big deal.
448
449dnl Redefine AC_PROG_CC to automatically invoke _AM_PROG_CC_C_O.
450m4_define([AC_PROG_CC],
451m4_defn([AC_PROG_CC])
452[_AM_PROG_CC_C_O
453])
454
455# AM_INIT_AUTOMAKE(PACKAGE, VERSION, [NO-DEFINE])
456# AM_INIT_AUTOMAKE([OPTIONS])
457# -----------------------------------------------
458# The call with PACKAGE and VERSION arguments is the old style
459# call (pre autoconf-2.50), which is being phased out.  PACKAGE
460# and VERSION should now be passed to AC_INIT and removed from
461# the call to AM_INIT_AUTOMAKE.
462# We support both call styles for the transition.  After
463# the next Automake release, Autoconf can make the AC_INIT
464# arguments mandatory, and then we can depend on a new Autoconf
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466AC_DEFUN([AM_INIT_AUTOMAKE],
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468m4_ifdef([_$0_ALREADY_INIT],
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471  [m4_define([_$0_ALREADY_INIT], m4_expansion_stack)])dnl
472dnl Autoconf wants to disallow AM_ names.  We explicitly allow
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474m4_pattern_allow([^AM_[A-Z]+FLAGS$])dnl
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476AC_REQUIRE([AC_PROG_INSTALL])dnl
477if test "`cd $srcdir && pwd`" != "`pwd`"; then
478  # Use -I$(srcdir) only when $(srcdir) != ., so that make's output
479  # is not polluted with repeated "-I."
480  AC_SUBST([am__isrc], [' -I$(srcdir)'])_AM_SUBST_NOTMAKE([am__isrc])dnl
481  # test to see if srcdir already configured
482  if test -f $srcdir/config.status; then
483    AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
484  fi
485fi
486
487# test whether we have cygpath
488if test -z "$CYGPATH_W"; then
489  if (cygpath --version) >/dev/null 2>/dev/null; then
490    CYGPATH_W='cygpath -w'
491  else
492    CYGPATH_W=echo
493  fi
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495AC_SUBST([CYGPATH_W])
496
497# Define the identity of the package.
498dnl Distinguish between old-style and new-style calls.
499m4_ifval([$2],
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502m4_ifval([$3], [_AM_SET_OPTION([no-define])])dnl
503 AC_SUBST([PACKAGE], [$1])dnl
504 AC_SUBST([VERSION], [$2])],
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506dnl Diagnose old-style AC_INIT with new-style AM_AUTOMAKE_INIT.
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511 AC_SUBST([PACKAGE], ['AC_PACKAGE_TARNAME'])dnl
512 AC_SUBST([VERSION], ['AC_PACKAGE_VERSION'])])dnl
513
514_AM_IF_OPTION([no-define],,
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516 AC_DEFINE_UNQUOTED([VERSION], ["$VERSION"], [Version number of package])])dnl
517
518# Some tools Automake needs.
519AC_REQUIRE([AM_SANITY_CHECK])dnl
520AC_REQUIRE([AC_ARG_PROGRAM])dnl
521AM_MISSING_PROG([ACLOCAL], [aclocal-${am__api_version}])
522AM_MISSING_PROG([AUTOCONF], [autoconf])
523AM_MISSING_PROG([AUTOMAKE], [automake-${am__api_version}])
524AM_MISSING_PROG([AUTOHEADER], [autoheader])
525AM_MISSING_PROG([MAKEINFO], [makeinfo])
526AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
527AC_REQUIRE([AM_PROG_INSTALL_STRIP])dnl
528AC_REQUIRE([AC_PROG_MKDIR_P])dnl
529# For better backward compatibility.  To be removed once Automake 1.9.x
530# dies out for good.  For more background, see:
531# <https://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
532# <https://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
533AC_SUBST([mkdir_p], ['$(MKDIR_P)'])
534# We need awk for the "check" target (and possibly the TAP driver).  The
535# system "awk" is bad on some platforms.
536AC_REQUIRE([AC_PROG_AWK])dnl
537AC_REQUIRE([AC_PROG_MAKE_SET])dnl
538AC_REQUIRE([AM_SET_LEADING_DOT])dnl
539_AM_IF_OPTION([tar-ustar], [_AM_PROG_TAR([ustar])],
540	      [_AM_IF_OPTION([tar-pax], [_AM_PROG_TAR([pax])],
541			     [_AM_PROG_TAR([v7])])])
542_AM_IF_OPTION([no-dependencies],,
543[AC_PROVIDE_IFELSE([AC_PROG_CC],
544		  [_AM_DEPENDENCIES([CC])],
545		  [m4_define([AC_PROG_CC],
546			     m4_defn([AC_PROG_CC])[_AM_DEPENDENCIES([CC])])])dnl
547AC_PROVIDE_IFELSE([AC_PROG_CXX],
548		  [_AM_DEPENDENCIES([CXX])],
549		  [m4_define([AC_PROG_CXX],
550			     m4_defn([AC_PROG_CXX])[_AM_DEPENDENCIES([CXX])])])dnl
551AC_PROVIDE_IFELSE([AC_PROG_OBJC],
552		  [_AM_DEPENDENCIES([OBJC])],
553		  [m4_define([AC_PROG_OBJC],
554			     m4_defn([AC_PROG_OBJC])[_AM_DEPENDENCIES([OBJC])])])dnl
555AC_PROVIDE_IFELSE([AC_PROG_OBJCXX],
556		  [_AM_DEPENDENCIES([OBJCXX])],
557		  [m4_define([AC_PROG_OBJCXX],
558			     m4_defn([AC_PROG_OBJCXX])[_AM_DEPENDENCIES([OBJCXX])])])dnl
559])
560# Variables for tags utilities; see am/tags.am
561if test -z "$CTAGS"; then
562  CTAGS=ctags
563fi
564AC_SUBST([CTAGS])
565if test -z "$ETAGS"; then
566  ETAGS=etags
567fi
568AC_SUBST([ETAGS])
569if test -z "$CSCOPE"; then
570  CSCOPE=cscope
571fi
572AC_SUBST([CSCOPE])
573
574AC_REQUIRE([_AM_SILENT_RULES])dnl
575dnl The testsuite driver may need to know about EXEEXT, so add the
576dnl 'am__EXEEXT' conditional if _AM_COMPILER_EXEEXT was seen.  This
577dnl macro is hooked onto _AC_COMPILER_EXEEXT early, see below.
578AC_CONFIG_COMMANDS_PRE(dnl
579[m4_provide_if([_AM_COMPILER_EXEEXT],
580  [AM_CONDITIONAL([am__EXEEXT], [test -n "$EXEEXT"])])])dnl
581
582AC_REQUIRE([_AM_PROG_RM_F])
583AC_REQUIRE([_AM_PROG_XARGS_N])
584
585dnl The trailing newline in this macro's definition is deliberate, for
586dnl backward compatibility and to allow trailing 'dnl'-style comments
587dnl after the AM_INIT_AUTOMAKE invocation. See automake bug#16841.
588])
589
590dnl Hook into '_AC_COMPILER_EXEEXT' early to learn its expansion.  Do not
591dnl add the conditional right here, as _AC_COMPILER_EXEEXT may be further
592dnl mangled by Autoconf and run in a shell conditional statement.
593m4_define([_AC_COMPILER_EXEEXT],
594m4_defn([_AC_COMPILER_EXEEXT])[m4_provide([_AM_COMPILER_EXEEXT])])
595
596# When config.status generates a header, we must update the stamp-h file.
597# This file resides in the same directory as the config header
598# that is generated.  The stamp files are numbered to have different names.
599
600# Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the
601# loop where config.status creates the headers, so we can generate
602# our stamp files there.
603AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK],
604[# Compute $1's index in $config_headers.
605_am_arg=$1
606_am_stamp_count=1
607for _am_header in $config_headers :; do
608  case $_am_header in
609    $_am_arg | $_am_arg:* )
610      break ;;
611    * )
612      _am_stamp_count=`expr $_am_stamp_count + 1` ;;
613  esac
614done
615echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
616
617# Copyright (C) 2001-2024 Free Software Foundation, Inc.
618#
619# This file is free software; the Free Software Foundation
620# gives unlimited permission to copy and/or distribute it,
621# with or without modifications, as long as this notice is preserved.
622
623# AM_PROG_INSTALL_SH
624# ------------------
625# Define $install_sh.
626AC_DEFUN([AM_PROG_INSTALL_SH],
627[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
628if test x"${install_sh+set}" != xset; then
629  case $am_aux_dir in
630  *\ * | *\	*)
631    install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
632  *)
633    install_sh="\${SHELL} $am_aux_dir/install-sh"
634  esac
635fi
636AC_SUBST([install_sh])])
637
638# Copyright (C) 2003-2024 Free Software Foundation, Inc.
639#
640# This file is free software; the Free Software Foundation
641# gives unlimited permission to copy and/or distribute it,
642# with or without modifications, as long as this notice is preserved.
643
644# Check whether the underlying file-system supports filenames
645# with a leading dot.  For instance MS-DOS doesn't.
646AC_DEFUN([AM_SET_LEADING_DOT],
647[rm -rf .tst 2>/dev/null
648mkdir .tst 2>/dev/null
649if test -d .tst; then
650  am__leading_dot=.
651else
652  am__leading_dot=_
653fi
654rmdir .tst 2>/dev/null
655AC_SUBST([am__leading_dot])])
656
657# Check to see how 'make' treats includes.	            -*- Autoconf -*-
658
659# Copyright (C) 2001-2024 Free Software Foundation, Inc.
660#
661# This file is free software; the Free Software Foundation
662# gives unlimited permission to copy and/or distribute it,
663# with or without modifications, as long as this notice is preserved.
664
665# AM_MAKE_INCLUDE()
666# -----------------
667# Check whether make has an 'include' directive that can support all
668# the idioms we need for our automatic dependency tracking code.
669AC_DEFUN([AM_MAKE_INCLUDE],
670[AC_MSG_CHECKING([whether ${MAKE-make} supports the include directive])
671cat > confinc.mk << 'END'
672am__doit:
673	@echo this is the am__doit target >confinc.out
674.PHONY: am__doit
675END
676am__include="#"
677am__quote=
678# BSD make does it like this.
679echo '.include "confinc.mk" # ignored' > confmf.BSD
680# Other make implementations (GNU, Solaris 10, AIX) do it like this.
681echo 'include confinc.mk # ignored' > confmf.GNU
682_am_result=no
683for s in GNU BSD; do
684  AM_RUN_LOG([${MAKE-make} -f confmf.$s && cat confinc.out])
685  AS_CASE([$?:`cat confinc.out 2>/dev/null`],
686      ['0:this is the am__doit target'],
687      [AS_CASE([$s],
688          [BSD], [am__include='.include' am__quote='"'],
689          [am__include='include' am__quote=''])])
690  if test "$am__include" != "#"; then
691    _am_result="yes ($s style)"
692    break
693  fi
694done
695rm -f confinc.* confmf.*
696AC_MSG_RESULT([${_am_result}])
697AC_SUBST([am__include])])
698AC_SUBST([am__quote])])
699
700# Fake the existence of programs that GNU maintainers use.  -*- Autoconf -*-
701
702# Copyright (C) 1997-2024 Free Software Foundation, Inc.
703#
704# This file is free software; the Free Software Foundation
705# gives unlimited permission to copy and/or distribute it,
706# with or without modifications, as long as this notice is preserved.
707
708# AM_MISSING_PROG(NAME, PROGRAM)
709# ------------------------------
710AC_DEFUN([AM_MISSING_PROG],
711[AC_REQUIRE([AM_MISSING_HAS_RUN])
712$1=${$1-"${am_missing_run}$2"}
713AC_SUBST($1)])
714
715# AM_MISSING_HAS_RUN
716# ------------------
717# Define MISSING if not defined so far and test if it is modern enough.
718# If it is, set am_missing_run to use it, otherwise, to nothing.
719AC_DEFUN([AM_MISSING_HAS_RUN],
720[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
721AC_REQUIRE_AUX_FILE([missing])dnl
722if test x"${MISSING+set}" != xset; then
723  MISSING="\${SHELL} '$am_aux_dir/missing'"
724fi
725# Use eval to expand $SHELL
726if eval "$MISSING --is-lightweight"; then
727  am_missing_run="$MISSING "
728else
729  am_missing_run=
730  AC_MSG_WARN(['missing' script is too old or missing])
731fi
732])
733
734# Helper functions for option handling.                     -*- Autoconf -*-
735
736# Copyright (C) 2001-2024 Free Software Foundation, Inc.
737#
738# This file is free software; the Free Software Foundation
739# gives unlimited permission to copy and/or distribute it,
740# with or without modifications, as long as this notice is preserved.
741
742# _AM_MANGLE_OPTION(NAME)
743# -----------------------
744AC_DEFUN([_AM_MANGLE_OPTION],
745[[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
746
747# _AM_SET_OPTION(NAME)
748# --------------------
749# Set option NAME.  Presently that only means defining a flag for this option.
750AC_DEFUN([_AM_SET_OPTION],
751[m4_define(_AM_MANGLE_OPTION([$1]), [1])])
752
753# _AM_SET_OPTIONS(OPTIONS)
754# ------------------------
755# OPTIONS is a space-separated list of Automake options.
756AC_DEFUN([_AM_SET_OPTIONS],
757[m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
758
759# _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
760# -------------------------------------------
761# Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
762AC_DEFUN([_AM_IF_OPTION],
763[m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
764
765# Copyright (C) 1999-2024 Free Software Foundation, Inc.
766#
767# This file is free software; the Free Software Foundation
768# gives unlimited permission to copy and/or distribute it,
769# with or without modifications, as long as this notice is preserved.
770
771# _AM_PROG_CC_C_O
772# ---------------
773# Like AC_PROG_CC_C_O, but changed for automake.  We rewrite AC_PROG_CC
774# to automatically call this.
775AC_DEFUN([_AM_PROG_CC_C_O],
776[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
777AC_REQUIRE_AUX_FILE([compile])dnl
778AC_LANG_PUSH([C])dnl
779AC_CACHE_CHECK(
780  [whether $CC understands -c and -o together],
781  [am_cv_prog_cc_c_o],
782  [AC_LANG_CONFTEST([AC_LANG_PROGRAM([])])
783  # Make sure it works both with $CC and with simple cc.
784  # Following AC_PROG_CC_C_O, we do the test twice because some
785  # compilers refuse to overwrite an existing .o file with -o,
786  # though they will create one.
787  am_cv_prog_cc_c_o=yes
788  for am_i in 1 2; do
789    if AM_RUN_LOG([$CC -c conftest.$ac_ext -o conftest2.$ac_objext]) \
790         && test -f conftest2.$ac_objext; then
791      : OK
792    else
793      am_cv_prog_cc_c_o=no
794      break
795    fi
796  done
797  rm -f core conftest*
798  unset am_i])
799if test "$am_cv_prog_cc_c_o" != yes; then
800   # Losing compiler, so override with the script.
801   # FIXME: It is wrong to rewrite CC.
802   # But if we don't then we get into trouble of one sort or another.
803   # A longer-term fix would be to have automake use am__CC in this case,
804   # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
805   CC="$am_aux_dir/compile $CC"
806fi
807AC_LANG_POP([C])])
808
809# For backward compatibility.
810AC_DEFUN_ONCE([AM_PROG_CC_C_O], [AC_REQUIRE([AC_PROG_CC])])
811
812# Copyright (C) 2022-2024 Free Software Foundation, Inc.
813#
814# This file is free software; the Free Software Foundation
815# gives unlimited permission to copy and/or distribute it,
816# with or without modifications, as long as this notice is preserved.
817
818# _AM_PROG_RM_F
819# ---------------
820# Check whether 'rm -f' without any arguments works.
821# https://bugs.gnu.org/10828
822AC_DEFUN([_AM_PROG_RM_F],
823[am__rm_f_notfound=
824AS_IF([(rm -f && rm -fr && rm -rf) 2>/dev/null], [], [am__rm_f_notfound='""'])
825AC_SUBST(am__rm_f_notfound)
826])
827
828# Copyright (C) 2001-2024 Free Software Foundation, Inc.
829#
830# This file is free software; the Free Software Foundation
831# gives unlimited permission to copy and/or distribute it,
832# with or without modifications, as long as this notice is preserved.
833
834# AM_RUN_LOG(COMMAND)
835# -------------------
836# Run COMMAND, save the exit status in ac_status, and log it.
837# (This has been adapted from Autoconf's _AC_RUN_LOG macro.)
838AC_DEFUN([AM_RUN_LOG],
839[{ echo "$as_me:$LINENO: $1" >&AS_MESSAGE_LOG_FD
840   ($1) >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD
841   ac_status=$?
842   echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
843   (exit $ac_status); }])
844
845# Check to make sure that the build environment is sane.    -*- Autoconf -*-
846
847# Copyright (C) 1996-2024 Free Software Foundation, Inc.
848#
849# This file is free software; the Free Software Foundation
850# gives unlimited permission to copy and/or distribute it,
851# with or without modifications, as long as this notice is preserved.
852
853# _AM_SLEEP_FRACTIONAL_SECONDS
854# ----------------------------
855AC_DEFUN([_AM_SLEEP_FRACTIONAL_SECONDS], [dnl
856AC_CACHE_CHECK([whether sleep supports fractional seconds],
857               am_cv_sleep_fractional_seconds, [dnl
858AS_IF([sleep 0.001 2>/dev/null], [am_cv_sleep_fractional_seconds=yes],
859                                 [am_cv_sleep_fractional_seconds=no])
860])])
861
862# _AM_FILESYSTEM_TIMESTAMP_RESOLUTION
863# -----------------------------------
864# Determine the filesystem's resolution for file modification
865# timestamps.  The coarsest we know of is FAT, with a resolution
866# of only two seconds, even with the most recent "exFAT" extensions.
867# The finest (e.g. ext4 with large inodes, XFS, ZFS) is one
868# nanosecond, matching clock_gettime.  However, it is probably not
869# possible to delay execution of a shell script for less than one
870# millisecond, due to process creation overhead and scheduling
871# granularity, so we don't check for anything finer than that. (See below.)
872AC_DEFUN([_AM_FILESYSTEM_TIMESTAMP_RESOLUTION], [dnl
873AC_REQUIRE([_AM_SLEEP_FRACTIONAL_SECONDS])
874AC_CACHE_CHECK([filesystem timestamp resolution],
875               am_cv_filesystem_timestamp_resolution, [dnl
876# Default to the worst case.
877am_cv_filesystem_timestamp_resolution=2
878
879# Only try to go finer than 1 sec if sleep can do it.
880# Don't try 1 sec, because if 0.01 sec and 0.1 sec don't work,
881# - 1 sec is not much of a win compared to 2 sec, and
882# - it takes 2 seconds to perform the test whether 1 sec works.
883#
884# Instead, just use the default 2s on platforms that have 1s resolution,
885# accept the extra 1s delay when using $sleep in the Automake tests, in
886# exchange for not incurring the 2s delay for running the test for all
887# packages.
888#
889am_try_resolutions=
890if test "$am_cv_sleep_fractional_seconds" = yes; then
891  # Even a millisecond often causes a bunch of false positives,
892  # so just try a hundredth of a second. The time saved between .001 and
893  # .01 is not terribly consequential.
894  am_try_resolutions="0.01 0.1 $am_try_resolutions"
895fi
896
897# In order to catch current-generation FAT out, we must *modify* files
898# that already exist; the *creation* timestamp is finer.  Use names
899# that make ls -t sort them differently when they have equal
900# timestamps than when they have distinct timestamps, keeping
901# in mind that ls -t prints the *newest* file first.
902rm -f conftest.ts?
903: > conftest.ts1
904: > conftest.ts2
905: > conftest.ts3
906
907# Make sure ls -t actually works.  Do 'set' in a subshell so we don't
908# clobber the current shell's arguments. (Outer-level square brackets
909# are removed by m4; they're present so that m4 does not expand
910# <dollar><star>; be careful, easy to get confused.)
911if (
912     set X `[ls -t conftest.ts[12]]` &&
913     {
914       test "$[]*" != "X conftest.ts1 conftest.ts2" ||
915       test "$[]*" != "X conftest.ts2 conftest.ts1";
916     }
917); then :; else
918  # If neither matched, then we have a broken ls.  This can happen
919  # if, for instance, CONFIG_SHELL is bash and it inherits a
920  # broken ls alias from the environment.  This has actually
921  # happened.  Such a system could not be considered "sane".
922  _AS_ECHO_UNQUOTED(
923    ["Bad output from ls -t: \"`[ls -t conftest.ts[12]]`\""],
924    [AS_MESSAGE_LOG_FD])
925  AC_MSG_FAILURE([ls -t produces unexpected output.
926Make sure there is not a broken ls alias in your environment.])
927fi
928
929for am_try_res in $am_try_resolutions; do
930  # Any one fine-grained sleep might happen to cross the boundary
931  # between two values of a coarser actual resolution, but if we do
932  # two fine-grained sleeps in a row, at least one of them will fall
933  # entirely within a coarse interval.
934  echo alpha > conftest.ts1
935  sleep $am_try_res
936  echo beta > conftest.ts2
937  sleep $am_try_res
938  echo gamma > conftest.ts3
939
940  # We assume that 'ls -t' will make use of high-resolution
941  # timestamps if the operating system supports them at all.
942  if (set X `ls -t conftest.ts?` &&
943      test "$[]2" = conftest.ts3 &&
944      test "$[]3" = conftest.ts2 &&
945      test "$[]4" = conftest.ts1); then
946    #
947    # Ok, ls -t worked. If we're at a resolution of 1 second, we're done,
948    # because we don't need to test make.
949    make_ok=true
950    if test $am_try_res != 1; then
951      # But if we've succeeded so far with a subsecond resolution, we
952      # have one more thing to check: make. It can happen that
953      # everything else supports the subsecond mtimes, but make doesn't;
954      # notably on macOS, which ships make 3.81 from 2006 (the last one
955      # released under GPLv2). https://bugs.gnu.org/68808
956      #
957      # We test $MAKE if it is defined in the environment, else "make".
958      # It might get overridden later, but our hope is that in practice
959      # it does not matter: it is the system "make" which is (by far)
960      # the most likely to be broken, whereas if the user overrides it,
961      # probably they did so with a better, or at least not worse, make.
962      # https://lists.gnu.org/archive/html/automake/2024-06/msg00051.html
963      #
964      # Create a Makefile (real tab character here):
965      rm -f conftest.mk
966      echo 'conftest.ts1: conftest.ts2' >conftest.mk
967      echo '	touch conftest.ts2' >>conftest.mk
968      #
969      # Now, running
970      #   touch conftest.ts1; touch conftest.ts2; make
971      # should touch ts1 because ts2 is newer. This could happen by luck,
972      # but most often, it will fail if make's support is insufficient. So
973      # test for several consecutive successes.
974      #
975      # (We reuse conftest.ts[12] because we still want to modify existing
976      # files, not create new ones, per above.)
977      n=0
978      make=${MAKE-make}
979      until test $n -eq 3; do
980        echo one > conftest.ts1
981        sleep $am_try_res
982        echo two > conftest.ts2 # ts2 should now be newer than ts1
983        if $make -f conftest.mk | grep 'up to date' >/dev/null; then
984          make_ok=false
985          break # out of $n loop
986        fi
987        n=`expr $n + 1`
988      done
989    fi
990    #
991    if $make_ok; then
992      # Everything we know to check worked out, so call this resolution good.
993      am_cv_filesystem_timestamp_resolution=$am_try_res
994      break # out of $am_try_res loop
995    fi
996    # Otherwise, we'll go on to check the next resolution.
997  fi
998done
999rm -f conftest.ts?
1000# (end _am_filesystem_timestamp_resolution)
1001])])
1002
1003# AM_SANITY_CHECK
1004# ---------------
1005AC_DEFUN([AM_SANITY_CHECK],
1006[AC_REQUIRE([_AM_FILESYSTEM_TIMESTAMP_RESOLUTION])
1007# This check should not be cached, as it may vary across builds of
1008# different projects.
1009AC_MSG_CHECKING([whether build environment is sane])
1010# Reject unsafe characters in $srcdir or the absolute working directory
1011# name.  Accept space and tab only in the latter.
1012am_lf='
1013'
1014case `pwd` in
1015  *[[\\\"\#\$\&\'\`$am_lf]]*)
1016    AC_MSG_ERROR([unsafe absolute working directory name]);;
1017esac
1018case $srcdir in
1019  *[[\\\"\#\$\&\'\`$am_lf\ \	]]*)
1020    AC_MSG_ERROR([unsafe srcdir value: '$srcdir']);;
1021esac
1022
1023# Do 'set' in a subshell so we don't clobber the current shell's
1024# arguments.  Must try -L first in case configure is actually a
1025# symlink; some systems play weird games with the mod time of symlinks
1026# (eg FreeBSD returns the mod time of the symlink's containing
1027# directory).
1028am_build_env_is_sane=no
1029am_has_slept=no
1030rm -f conftest.file
1031for am_try in 1 2; do
1032  echo "timestamp, slept: $am_has_slept" > conftest.file
1033  if (
1034    set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
1035    if test "$[]*" = "X"; then
1036      # -L didn't work.
1037      set X `ls -t "$srcdir/configure" conftest.file`
1038    fi
1039    test "$[]2" = conftest.file
1040  ); then
1041    am_build_env_is_sane=yes
1042    break
1043  fi
1044  # Just in case.
1045  sleep "$am_cv_filesystem_timestamp_resolution"
1046  am_has_slept=yes
1047done
1048
1049AC_MSG_RESULT([$am_build_env_is_sane])
1050if test "$am_build_env_is_sane" = no; then
1051  AC_MSG_ERROR([newly created file is older than distributed files!
1052Check your system clock])
1053fi
1054
1055# If we didn't sleep, we still need to ensure time stamps of config.status and
1056# generated files are strictly newer.
1057am_sleep_pid=
1058AS_IF([test -e conftest.file || grep 'slept: no' conftest.file >/dev/null 2>&1],, [dnl
1059  ( sleep "$am_cv_filesystem_timestamp_resolution" ) &
1060  am_sleep_pid=$!
1061])
1062AC_CONFIG_COMMANDS_PRE(
1063  [AC_MSG_CHECKING([that generated files are newer than configure])
1064   if test -n "$am_sleep_pid"; then
1065     # Hide warnings about reused PIDs.
1066     wait $am_sleep_pid 2>/dev/null
1067   fi
1068   AC_MSG_RESULT([done])])
1069rm -f conftest.file
1070])
1071
1072# Copyright (C) 2009-2024 Free Software Foundation, Inc.
1073#
1074# This file is free software; the Free Software Foundation
1075# gives unlimited permission to copy and/or distribute it,
1076# with or without modifications, as long as this notice is preserved.
1077
1078# _AM_SILENT_RULES
1079# ----------------
1080# Enable less verbose build rules support.
1081AC_DEFUN([_AM_SILENT_RULES],
1082[AM_DEFAULT_VERBOSITY=1
1083AC_ARG_ENABLE([silent-rules], [dnl
1084AS_HELP_STRING(
1085  [--enable-silent-rules],
1086  [less verbose build output (undo: "make V=1")])
1087AS_HELP_STRING(
1088  [--disable-silent-rules],
1089  [verbose build output (undo: "make V=0")])dnl
1090])
1091dnl
1092dnl A few 'make' implementations (e.g., NonStop OS and NextStep)
1093dnl do not support nested variable expansions.
1094dnl See automake bug#9928 and bug#10237.
1095am_make=${MAKE-make}
1096AC_CACHE_CHECK([whether $am_make supports nested variables],
1097   [am_cv_make_support_nested_variables],
1098   [if AS_ECHO([['TRUE=$(BAR$(V))
1099BAR0=false
1100BAR1=true
1101V=1
1102am__doit:
1103	@$(TRUE)
1104.PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then
1105  am_cv_make_support_nested_variables=yes
1106else
1107  am_cv_make_support_nested_variables=no
1108fi])
1109AC_SUBST([AM_V])dnl
1110AM_SUBST_NOTMAKE([AM_V])dnl
1111AC_SUBST([AM_DEFAULT_V])dnl
1112AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl
1113AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
1114AM_BACKSLASH='\'
1115AC_SUBST([AM_BACKSLASH])dnl
1116_AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
1117dnl Delay evaluation of AM_DEFAULT_VERBOSITY to the end to allow multiple calls
1118dnl to AM_SILENT_RULES to change the default value.
1119AC_CONFIG_COMMANDS_PRE([dnl
1120case $enable_silent_rules in @%:@ (((
1121  yes) AM_DEFAULT_VERBOSITY=0;;
1122   no) AM_DEFAULT_VERBOSITY=1;;
1123esac
1124if test $am_cv_make_support_nested_variables = yes; then
1125  dnl Using '$V' instead of '$(V)' breaks IRIX make.
1126  AM_V='$(V)'
1127  AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
1128else
1129  AM_V=$AM_DEFAULT_VERBOSITY
1130  AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
1131fi
1132])dnl
1133])
1134
1135# AM_SILENT_RULES([DEFAULT])
1136# --------------------------
1137# Set the default verbosity level to DEFAULT ("yes" being less verbose, "no" or
1138# empty being verbose).
1139AC_DEFUN([AM_SILENT_RULES],
1140[AC_REQUIRE([_AM_SILENT_RULES])
1141AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1])])
1142
1143# Copyright (C) 2001-2024 Free Software Foundation, Inc.
1144#
1145# This file is free software; the Free Software Foundation
1146# gives unlimited permission to copy and/or distribute it,
1147# with or without modifications, as long as this notice is preserved.
1148
1149# AM_PROG_INSTALL_STRIP
1150# ---------------------
1151# One issue with vendor 'install' (even GNU) is that you can't
1152# specify the program used to strip binaries.  This is especially
1153# annoying in cross-compiling environments, where the build's strip
1154# is unlikely to handle the host's binaries.
1155# Fortunately install-sh will honor a STRIPPROG variable, so we
1156# always use install-sh in "make install-strip", and initialize
1157# STRIPPROG with the value of the STRIP variable (set by the user).
1158AC_DEFUN([AM_PROG_INSTALL_STRIP],
1159[AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
1160# Installed binaries are usually stripped using 'strip' when the user
1161# run "make install-strip".  However 'strip' might not be the right
1162# tool to use in cross-compilation environments, therefore Automake
1163# will honor the 'STRIP' environment variable to overrule this program.
1164dnl Don't test for $cross_compiling = yes, because it might be 'maybe'.
1165if test "$cross_compiling" != no; then
1166  AC_CHECK_TOOL([STRIP], [strip], :)
1167fi
1168INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
1169AC_SUBST([INSTALL_STRIP_PROGRAM])])
1170
1171# Copyright (C) 2006-2024 Free Software Foundation, Inc.
1172#
1173# This file is free software; the Free Software Foundation
1174# gives unlimited permission to copy and/or distribute it,
1175# with or without modifications, as long as this notice is preserved.
1176
1177# _AM_SUBST_NOTMAKE(VARIABLE)
1178# ---------------------------
1179# Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
1180# This macro is traced by Automake.
1181AC_DEFUN([_AM_SUBST_NOTMAKE])
1182
1183# AM_SUBST_NOTMAKE(VARIABLE)
1184# --------------------------
1185# Public sister of _AM_SUBST_NOTMAKE.
1186AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
1187
1188# Check how to create a tarball.                            -*- Autoconf -*-
1189
1190# Copyright (C) 2004-2024 Free Software Foundation, Inc.
1191#
1192# This file is free software; the Free Software Foundation
1193# gives unlimited permission to copy and/or distribute it,
1194# with or without modifications, as long as this notice is preserved.
1195
1196# _AM_PROG_TAR(FORMAT)
1197# --------------------
1198# Check how to create a tarball in format FORMAT.
1199# FORMAT should be one of 'v7', 'ustar', or 'pax'.
1200#
1201# Substitute a variable $(am__tar) that is a command
1202# writing to stdout a FORMAT-tarball containing the directory
1203# $tardir.
1204#     tardir=directory && $(am__tar) > result.tar
1205#
1206# Substitute a variable $(am__untar) that extract such
1207# a tarball read from stdin.
1208#     $(am__untar) < result.tar
1209#
1210AC_DEFUN([_AM_PROG_TAR],
1211[# Always define AMTAR for backward compatibility.  Yes, it's still used
1212# in the wild :-(  We should find a proper way to deprecate it ...
1213AC_SUBST([AMTAR], ['$${TAR-tar}'])
1214
1215# We'll loop over all known methods to create a tar archive until one works.
1216_am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
1217
1218m4_if([$1], [v7],
1219  [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],
1220
1221  [m4_case([$1],
1222    [ustar],
1223     [# The POSIX 1988 'ustar' format is defined with fixed-size fields.
1224      # There is notably a 21 bits limit for the UID and the GID.  In fact,
1225      # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343
1226      # and bug#13588).
1227      am_max_uid=2097151 # 2^21 - 1
1228      am_max_gid=$am_max_uid
1229      # The $UID and $GID variables are not portable, so we need to resort
1230      # to the POSIX-mandated id(1) utility.  Errors in the 'id' calls
1231      # below are definitely unexpected, so allow the users to see them
1232      # (that is, avoid stderr redirection).
1233      am_uid=`id -u || echo unknown`
1234      am_gid=`id -g || echo unknown`
1235      AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format])
1236      if test x$am_uid = xunknown; then
1237        AC_MSG_WARN([ancient id detected; assuming current UID is ok, but dist-ustar might not work])
1238      elif test $am_uid -le $am_max_uid; then
1239        AC_MSG_RESULT([yes])
1240      else
1241        AC_MSG_RESULT([no])
1242        _am_tools=none
1243      fi
1244      AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format])
1245      if test x$gm_gid = xunknown; then
1246        AC_MSG_WARN([ancient id detected; assuming current GID is ok, but dist-ustar might not work])
1247      elif test $am_gid -le $am_max_gid; then
1248        AC_MSG_RESULT([yes])
1249      else
1250        AC_MSG_RESULT([no])
1251        _am_tools=none
1252      fi],
1253
1254  [pax],
1255    [],
1256
1257  [m4_fatal([Unknown tar format])])
1258
1259  AC_MSG_CHECKING([how to create a $1 tar archive])
1260
1261  # Go ahead even if we have the value already cached.  We do so because we
1262  # need to set the values for the 'am__tar' and 'am__untar' variables.
1263  _am_tools=${am_cv_prog_tar_$1-$_am_tools}
1264
1265  for _am_tool in $_am_tools; do
1266    case $_am_tool in
1267    gnutar)
1268      for _am_tar in tar gnutar gtar; do
1269        AM_RUN_LOG([$_am_tar --version]) && break
1270      done
1271      am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
1272      am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
1273      am__untar="$_am_tar -xf -"
1274      ;;
1275    plaintar)
1276      # Must skip GNU tar: if it does not support --format= it doesn't create
1277      # ustar tarball either.
1278      (tar --version) >/dev/null 2>&1 && continue
1279      am__tar='tar chf - "$$tardir"'
1280      am__tar_='tar chf - "$tardir"'
1281      am__untar='tar xf -'
1282      ;;
1283    pax)
1284      am__tar='pax -L -x $1 -w "$$tardir"'
1285      am__tar_='pax -L -x $1 -w "$tardir"'
1286      am__untar='pax -r'
1287      ;;
1288    cpio)
1289      am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
1290      am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
1291      am__untar='cpio -i -H $1 -d'
1292      ;;
1293    none)
1294      am__tar=false
1295      am__tar_=false
1296      am__untar=false
1297      ;;
1298    esac
1299
1300    # If the value was cached, stop now.  We just wanted to have am__tar
1301    # and am__untar set.
1302    test -n "${am_cv_prog_tar_$1}" && break
1303
1304    # tar/untar a dummy directory, and stop if the command works.
1305    rm -rf conftest.dir
1306    mkdir conftest.dir
1307    echo GrepMe > conftest.dir/file
1308    AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
1309    rm -rf conftest.dir
1310    if test -s conftest.tar; then
1311      AM_RUN_LOG([$am__untar <conftest.tar])
1312      AM_RUN_LOG([cat conftest.dir/file])
1313      grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
1314    fi
1315  done
1316  rm -rf conftest.dir
1317
1318  AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
1319  AC_MSG_RESULT([$am_cv_prog_tar_$1])])
1320
1321AC_SUBST([am__tar])
1322AC_SUBST([am__untar])
1323]) # _AM_PROG_TAR
1324
1325# Copyright (C) 2022-2024 Free Software Foundation, Inc.
1326#
1327# This file is free software; the Free Software Foundation
1328# gives unlimited permission to copy and/or distribute it,
1329# with or without modifications, as long as this notice is preserved.
1330
1331# _AM_PROG_XARGS_N
1332# ----------------
1333# Check whether 'xargs -n' works.  It should work everywhere, so the fallback
1334# is not optimized at all as we never expect to use it.
1335AC_DEFUN([_AM_PROG_XARGS_N],
1336[AC_CACHE_CHECK([xargs -n works], am_cv_xargs_n_works, [dnl
1337AS_IF([test "`echo 1 2 3 | xargs -n2 echo`" = "1 2
13383"], [am_cv_xargs_n_works=yes], [am_cv_xargs_n_works=no])])
1339AS_IF([test "$am_cv_xargs_n_works" = yes], [am__xargs_n='xargs -n'], [dnl
1340  am__xargs_n='am__xargs_n () { shift; sed "s/ /\\n/g" | while read am__xargs_n_arg; do "$@" "$am__xargs_n_arg"; done; }'
1341])dnl
1342AC_SUBST(am__xargs_n)
1343])
1344
1345m4_include([m4/ax_compiler_vendor.m4])
1346m4_include([m4/ax_pkg_config.m4])
1347m4_include([m4/libtool.m4])
1348m4_include([m4/ltoptions.m4])
1349m4_include([m4/ltsugar.m4])
1350m4_include([m4/ltversion.m4])
1351m4_include([m4/lt~obsolete.m4])
1352