Annotation of parser3/src/lib/ltdl/aclocal.m4, revision 1.8
1.6 moko 1: # generated automatically by aclocal 1.17 -*- Autoconf -*-
1.4 moko 2:
1.6 moko 3: # Copyright (C) 1996-2024 Free Software Foundation, Inc.
1.1 paf 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:
1.2 moko 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.
1.1 paf 13:
1.4 moko 14: m4_ifndef([AC_CONFIG_MACRO_DIRS], [m4_defun([_AM_CONFIG_MACRO_DIRS], [])m4_defun([AC_CONFIG_MACRO_DIRS], [_AM_CONFIG_MACRO_DIRS($@)])])
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1.4 moko 21: To do so, use the procedure documented by the package, typically 'autoreconf'.])])
1.1 paf 22:
1.6 moko 23: # Copyright (C) 2002-2024 Free Software Foundation, Inc.
1.1 paf 24: #
1.2 moko 25: # This file is free software; the Free Software Foundation
26: # gives unlimited permission to copy and/or distribute it,
27: # with or without modifications, as long as this notice is preserved.
1.1 paf 28:
1.2 moko 29: # AM_AUTOMAKE_VERSION(VERSION)
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1.6 moko 61: # Copyright (C) 2001-2024 Free Software Foundation, Inc.
1.2 moko 62: #
63: # This file is free software; the Free Software Foundation
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1.6 moko 113: # Copyright (C) 1997-2024 Free Software Foundation, Inc.
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1.1 paf 143:
1.6 moko 144: # Copyright (C) 1999-2024 Free Software Foundation, Inc.
1.2 moko 145: #
146: # This file is free software; the Free Software Foundation
147: # gives unlimited permission to copy and/or distribute it,
148: # with or without modifications, as long as this notice is preserved.
1.1 paf 149:
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1.4 moko 151: # There are a few dirty hacks below to avoid letting 'AC_PROG_CC' be
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157:
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1.1 paf 246: nosideeffect)
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1.1 paf 249: if test "x$enable_dependency_tracking" = xyes; then
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1.4 moko 255: msvc7 | msvc7msys | msvisualcpp | msvcmsys)
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1.2 moko 265: source=sub/conftest.c object=$am__obj \
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268: >/dev/null 2>conftest.err &&
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1.4 moko 314: [AC_ARG_ENABLE([dependency-tracking], [dnl
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1.2 moko 321: if test "x$enable_dependency_tracking" != xno; then
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1.4 moko 324: am__nodep='_no'
1.2 moko 325: fi
326: AM_CONDITIONAL([AMDEP], [test "x$enable_dependency_tracking" != xno])
327: AC_SUBST([AMDEPBACKSLASH])dnl
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1.4 moko 329: AC_SUBST([am__nodep])dnl
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1.2 moko 331: ])
332:
333: # Generate code to set up dependency tracking. -*- Autoconf -*-
334:
1.6 moko 335: # Copyright (C) 1999-2024 Free Software Foundation, Inc.
1.2 moko 336: #
337: # This file is free software; the Free Software Foundation
338: # gives unlimited permission to copy and/or distribute it,
339: # with or without modifications, as long as this notice is preserved.
340:
341: # _AM_OUTPUT_DEPENDENCY_COMMANDS
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343: AC_DEFUN([_AM_OUTPUT_DEPENDENCY_COMMANDS],
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1.2 moko 353: shift
1.4 moko 354: # Used to flag and report bootstrapping failures.
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1.2 moko 357: do
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1.4 moko 359: am_mf=`AS_ECHO(["$am_mf"]) | sed -e 's/:.*$//'`
360: # Check whether this is an Automake generated Makefile which includes
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362: # Grep'ing the whole file directly is not great: AIX grep has a line
1.2 moko 363: # limit of 2048, but all sed's we know have understand at least 4000.
1.4 moko 364: sed -n 's,^am--depfiles:.*,X,p' "$am_mf" | grep X >/dev/null 2>&1 \
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1.2 moko 371: done
1.4 moko 372: if test $am_rc -ne 0; then
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380: AS_UNSET([am_dirpart])
381: AS_UNSET([am_filepart])
382: AS_UNSET([am_mf])
383: AS_UNSET([am_rc])
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386: ])# _AM_OUTPUT_DEPENDENCY_COMMANDS
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389: # AM_OUTPUT_DEPENDENCY_COMMANDS
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1.4 moko 393: # This code is only required when automatic dependency tracking is enabled.
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1.2 moko 396: AC_DEFUN([AM_OUTPUT_DEPENDENCY_COMMANDS],
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1.4 moko 399: [AMDEP_TRUE="$AMDEP_TRUE" MAKE="${MAKE-make}"])])
1.2 moko 400:
401: # Do all the work for Automake. -*- Autoconf -*-
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1.6 moko 403: # Copyright (C) 1996-2024 Free Software Foundation, Inc.
1.2 moko 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.
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1.4 moko 412: dnl Redefine AC_PROG_CC to automatically invoke _AM_PROG_CC_C_O.
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1.2 moko 418: # AM_INIT_AUTOMAKE(PACKAGE, VERSION, [NO-DEFINE])
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1.6 moko 431: m4_ifdef([_$0_ALREADY_INIT],
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1.1 paf 457: fi
1.2 moko 458: AC_SUBST([CYGPATH_W])
1.1 paf 459:
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1.4 moko 463: [AC_DIAGNOSE([obsolete],
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1.2 moko 466: AC_SUBST([PACKAGE], [$1])dnl
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1.4 moko 470: m4_if(
1.6 moko 471: m4_ifset([AC_PACKAGE_NAME], [ok]):m4_ifset([AC_PACKAGE_VERSION], [ok]),
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1.2 moko 473: [m4_fatal([AC_INIT should be called with package and version arguments])])dnl
474: AC_SUBST([PACKAGE], ['AC_PACKAGE_TARNAME'])dnl
475: AC_SUBST([VERSION], ['AC_PACKAGE_VERSION'])])dnl
1.1 paf 476:
1.2 moko 477: _AM_IF_OPTION([no-define],,
1.4 moko 478: [AC_DEFINE_UNQUOTED([PACKAGE], ["$PACKAGE"], [Name of package])
479: AC_DEFINE_UNQUOTED([VERSION], ["$VERSION"], [Version number of package])])dnl
1.1 paf 480:
1.2 moko 481: # Some tools Automake needs.
482: AC_REQUIRE([AM_SANITY_CHECK])dnl
483: AC_REQUIRE([AC_ARG_PROGRAM])dnl
1.4 moko 484: AM_MISSING_PROG([ACLOCAL], [aclocal-${am__api_version}])
485: AM_MISSING_PROG([AUTOCONF], [autoconf])
486: AM_MISSING_PROG([AUTOMAKE], [automake-${am__api_version}])
487: AM_MISSING_PROG([AUTOHEADER], [autoheader])
488: AM_MISSING_PROG([MAKEINFO], [makeinfo])
1.2 moko 489: AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
490: AC_REQUIRE([AM_PROG_INSTALL_STRIP])dnl
1.4 moko 491: AC_REQUIRE([AC_PROG_MKDIR_P])dnl
492: # For better backward compatibility. To be removed once Automake 1.9.x
493: # dies out for good. For more background, see:
494: # <https://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
495: # <https://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
496: AC_SUBST([mkdir_p], ['$(MKDIR_P)'])
497: # We need awk for the "check" target (and possibly the TAP driver). The
498: # system "awk" is bad on some platforms.
1.2 moko 499: AC_REQUIRE([AC_PROG_AWK])dnl
500: AC_REQUIRE([AC_PROG_MAKE_SET])dnl
501: AC_REQUIRE([AM_SET_LEADING_DOT])dnl
502: _AM_IF_OPTION([tar-ustar], [_AM_PROG_TAR([ustar])],
503: [_AM_IF_OPTION([tar-pax], [_AM_PROG_TAR([pax])],
504: [_AM_PROG_TAR([v7])])])
505: _AM_IF_OPTION([no-dependencies],,
506: [AC_PROVIDE_IFELSE([AC_PROG_CC],
1.4 moko 507: [_AM_DEPENDENCIES([CC])],
508: [m4_define([AC_PROG_CC],
509: m4_defn([AC_PROG_CC])[_AM_DEPENDENCIES([CC])])])dnl
1.2 moko 510: AC_PROVIDE_IFELSE([AC_PROG_CXX],
1.4 moko 511: [_AM_DEPENDENCIES([CXX])],
512: [m4_define([AC_PROG_CXX],
513: m4_defn([AC_PROG_CXX])[_AM_DEPENDENCIES([CXX])])])dnl
1.2 moko 514: AC_PROVIDE_IFELSE([AC_PROG_OBJC],
1.4 moko 515: [_AM_DEPENDENCIES([OBJC])],
516: [m4_define([AC_PROG_OBJC],
517: m4_defn([AC_PROG_OBJC])[_AM_DEPENDENCIES([OBJC])])])dnl
518: AC_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: ])
1.6 moko 523: # Variables for tags utilities; see am/tags.am
524: if test -z "$CTAGS"; then
525: CTAGS=ctags
526: fi
527: AC_SUBST([CTAGS])
528: if test -z "$ETAGS"; then
529: ETAGS=etags
530: fi
531: AC_SUBST([ETAGS])
532: if test -z "$CSCOPE"; then
533: CSCOPE=cscope
534: fi
535: AC_SUBST([CSCOPE])
536:
537: AC_REQUIRE([_AM_SILENT_RULES])dnl
1.4 moko 538: dnl The testsuite driver may need to know about EXEEXT, so add the
539: dnl 'am__EXEEXT' conditional if _AM_COMPILER_EXEEXT was seen. This
540: dnl macro is hooked onto _AC_COMPILER_EXEEXT early, see below.
1.2 moko 541: AC_CONFIG_COMMANDS_PRE(dnl
542: [m4_provide_if([_AM_COMPILER_EXEEXT],
543: [AM_CONDITIONAL([am__EXEEXT], [test -n "$EXEEXT"])])])dnl
1.4 moko 544:
1.6 moko 545: AC_REQUIRE([_AM_PROG_RM_F])
546: AC_REQUIRE([_AM_PROG_XARGS_N])
1.4 moko 547:
548: dnl The trailing newline in this macro's definition is deliberate, for
549: dnl backward compatibility and to allow trailing 'dnl'-style comments
550: dnl after the AM_INIT_AUTOMAKE invocation. See automake bug#16841.
1.2 moko 551: ])
552:
1.4 moko 553: dnl Hook into '_AC_COMPILER_EXEEXT' early to learn its expansion. Do not
1.2 moko 554: dnl add the conditional right here, as _AC_COMPILER_EXEEXT may be further
555: dnl mangled by Autoconf and run in a shell conditional statement.
556: m4_define([_AC_COMPILER_EXEEXT],
557: m4_defn([_AC_COMPILER_EXEEXT])[m4_provide([_AM_COMPILER_EXEEXT])])
1.1 paf 558:
1.2 moko 559: # When config.status generates a header, we must update the stamp-h file.
560: # This file resides in the same directory as the config header
561: # that is generated. The stamp files are numbered to have different names.
1.1 paf 562:
1.2 moko 563: # Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the
564: # loop where config.status creates the headers, so we can generate
565: # our stamp files there.
566: AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK],
567: [# Compute $1's index in $config_headers.
568: _am_arg=$1
569: _am_stamp_count=1
570: for _am_header in $config_headers :; do
571: case $_am_header in
572: $_am_arg | $_am_arg:* )
573: break ;;
574: * )
575: _am_stamp_count=`expr $_am_stamp_count + 1` ;;
576: esac
1.1 paf 577: done
1.2 moko 578: echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
579:
1.6 moko 580: # Copyright (C) 2001-2024 Free Software Foundation, Inc.
1.2 moko 581: #
582: # This file is free software; the Free Software Foundation
583: # gives unlimited permission to copy and/or distribute it,
584: # with or without modifications, as long as this notice is preserved.
1.1 paf 585:
1.2 moko 586: # AM_PROG_INSTALL_SH
587: # ------------------
588: # Define $install_sh.
589: AC_DEFUN([AM_PROG_INSTALL_SH],
590: [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
1.4 moko 591: if test x"${install_sh+set}" != xset; then
1.2 moko 592: case $am_aux_dir in
593: *\ * | *\ *)
594: install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
595: *)
596: install_sh="\${SHELL} $am_aux_dir/install-sh"
597: esac
598: fi
1.4 moko 599: AC_SUBST([install_sh])])
1.1 paf 600:
1.6 moko 601: # Copyright (C) 2003-2024 Free Software Foundation, Inc.
1.1 paf 602: #
1.2 moko 603: # This file is free software; the Free Software Foundation
604: # gives unlimited permission to copy and/or distribute it,
605: # with or without modifications, as long as this notice is preserved.
1.1 paf 606:
1.2 moko 607: # Check whether the underlying file-system supports filenames
608: # with a leading dot. For instance MS-DOS doesn't.
609: AC_DEFUN([AM_SET_LEADING_DOT],
610: [rm -rf .tst 2>/dev/null
611: mkdir .tst 2>/dev/null
612: if test -d .tst; then
613: am__leading_dot=.
614: else
615: am__leading_dot=_
616: fi
617: rmdir .tst 2>/dev/null
618: AC_SUBST([am__leading_dot])])
1.1 paf 619:
1.2 moko 620: # Check to see how 'make' treats includes. -*- Autoconf -*-
1.1 paf 621:
1.6 moko 622: # Copyright (C) 2001-2024 Free Software Foundation, Inc.
1.2 moko 623: #
624: # This file is free software; the Free Software Foundation
625: # gives unlimited permission to copy and/or distribute it,
626: # with or without modifications, as long as this notice is preserved.
1.1 paf 627:
628: # AM_MAKE_INCLUDE()
629: # -----------------
1.4 moko 630: # Check whether make has an 'include' directive that can support all
631: # the idioms we need for our automatic dependency tracking code.
1.1 paf 632: AC_DEFUN([AM_MAKE_INCLUDE],
1.4 moko 633: [AC_MSG_CHECKING([whether ${MAKE-make} supports the include directive])
634: cat > confinc.mk << 'END'
1.2 moko 635: am__doit:
1.4 moko 636: @echo this is the am__doit target >confinc.out
1.2 moko 637: .PHONY: am__doit
1.1 paf 638: END
639: am__include="#"
640: am__quote=
1.4 moko 641: # BSD make does it like this.
642: echo '.include "confinc.mk" # ignored' > confmf.BSD
643: # Other make implementations (GNU, Solaris 10, AIX) do it like this.
644: echo 'include confinc.mk # ignored' > confmf.GNU
645: _am_result=no
646: for s in GNU BSD; do
647: AM_RUN_LOG([${MAKE-make} -f confmf.$s && cat confinc.out])
648: AS_CASE([$?:`cat confinc.out 2>/dev/null`],
649: ['0:this is the am__doit target'],
650: [AS_CASE([$s],
651: [BSD], [am__include='.include' am__quote='"'],
652: [am__include='include' am__quote=''])])
653: if test "$am__include" != "#"; then
654: _am_result="yes ($s style)"
655: break
656: fi
657: done
658: rm -f confinc.* confmf.*
659: AC_MSG_RESULT([${_am_result}])
660: AC_SUBST([am__include])])
661: AC_SUBST([am__quote])])
1.2 moko 662:
663: # Fake the existence of programs that GNU maintainers use. -*- Autoconf -*-
664:
1.6 moko 665: # Copyright (C) 1997-2024 Free Software Foundation, Inc.
1.2 moko 666: #
667: # This file is free software; the Free Software Foundation
668: # gives unlimited permission to copy and/or distribute it,
669: # with or without modifications, as long as this notice is preserved.
670:
671: # AM_MISSING_PROG(NAME, PROGRAM)
672: # ------------------------------
673: AC_DEFUN([AM_MISSING_PROG],
674: [AC_REQUIRE([AM_MISSING_HAS_RUN])
675: $1=${$1-"${am_missing_run}$2"}
676: AC_SUBST($1)])
677:
678: # AM_MISSING_HAS_RUN
679: # ------------------
1.4 moko 680: # Define MISSING if not defined so far and test if it is modern enough.
681: # If it is, set am_missing_run to use it, otherwise, to nothing.
1.2 moko 682: AC_DEFUN([AM_MISSING_HAS_RUN],
683: [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
684: AC_REQUIRE_AUX_FILE([missing])dnl
685: if test x"${MISSING+set}" != xset; then
1.4 moko 686: MISSING="\${SHELL} '$am_aux_dir/missing'"
1.2 moko 687: fi
688: # Use eval to expand $SHELL
1.4 moko 689: if eval "$MISSING --is-lightweight"; then
690: am_missing_run="$MISSING "
1.2 moko 691: else
692: am_missing_run=
1.4 moko 693: AC_MSG_WARN(['missing' script is too old or missing])
1.1 paf 694: fi
695: ])
696:
1.2 moko 697: # Helper functions for option handling. -*- Autoconf -*-
698:
1.6 moko 699: # Copyright (C) 2001-2024 Free Software Foundation, Inc.
1.2 moko 700: #
701: # This file is free software; the Free Software Foundation
702: # gives unlimited permission to copy and/or distribute it,
703: # with or without modifications, as long as this notice is preserved.
704:
705: # _AM_MANGLE_OPTION(NAME)
706: # -----------------------
707: AC_DEFUN([_AM_MANGLE_OPTION],
708: [[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
709:
710: # _AM_SET_OPTION(NAME)
1.4 moko 711: # --------------------
1.2 moko 712: # Set option NAME. Presently that only means defining a flag for this option.
713: AC_DEFUN([_AM_SET_OPTION],
1.4 moko 714: [m4_define(_AM_MANGLE_OPTION([$1]), [1])])
1.2 moko 715:
716: # _AM_SET_OPTIONS(OPTIONS)
1.4 moko 717: # ------------------------
1.2 moko 718: # OPTIONS is a space-separated list of Automake options.
719: AC_DEFUN([_AM_SET_OPTIONS],
720: [m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
721:
722: # _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
723: # -------------------------------------------
724: # Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
725: AC_DEFUN([_AM_IF_OPTION],
726: [m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
727:
1.6 moko 728: # Copyright (C) 1999-2024 Free Software Foundation, Inc.
1.4 moko 729: #
730: # This file is free software; the Free Software Foundation
731: # gives unlimited permission to copy and/or distribute it,
732: # with or without modifications, as long as this notice is preserved.
733:
734: # _AM_PROG_CC_C_O
735: # ---------------
736: # Like AC_PROG_CC_C_O, but changed for automake. We rewrite AC_PROG_CC
737: # to automatically call this.
738: AC_DEFUN([_AM_PROG_CC_C_O],
739: [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
740: AC_REQUIRE_AUX_FILE([compile])dnl
741: AC_LANG_PUSH([C])dnl
742: AC_CACHE_CHECK(
743: [whether $CC understands -c and -o together],
744: [am_cv_prog_cc_c_o],
745: [AC_LANG_CONFTEST([AC_LANG_PROGRAM([])])
746: # Make sure it works both with $CC and with simple cc.
747: # Following AC_PROG_CC_C_O, we do the test twice because some
748: # compilers refuse to overwrite an existing .o file with -o,
749: # though they will create one.
750: am_cv_prog_cc_c_o=yes
751: for am_i in 1 2; do
752: if AM_RUN_LOG([$CC -c conftest.$ac_ext -o conftest2.$ac_objext]) \
753: && test -f conftest2.$ac_objext; then
754: : OK
755: else
756: am_cv_prog_cc_c_o=no
757: break
758: fi
759: done
760: rm -f core conftest*
761: unset am_i])
762: if test "$am_cv_prog_cc_c_o" != yes; then
763: # Losing compiler, so override with the script.
764: # FIXME: It is wrong to rewrite CC.
765: # But if we don't then we get into trouble of one sort or another.
766: # A longer-term fix would be to have automake use am__CC in this case,
767: # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
768: CC="$am_aux_dir/compile $CC"
769: fi
770: AC_LANG_POP([C])])
771:
772: # For backward compatibility.
773: AC_DEFUN_ONCE([AM_PROG_CC_C_O], [AC_REQUIRE([AC_PROG_CC])])
774:
1.6 moko 775: # Copyright (C) 2022-2024 Free Software Foundation, Inc.
776: #
777: # This file is free software; the Free Software Foundation
778: # gives unlimited permission to copy and/or distribute it,
779: # with or without modifications, as long as this notice is preserved.
780:
781: # _AM_PROG_RM_F
782: # ---------------
783: # Check whether 'rm -f' without any arguments works.
784: # https://bugs.gnu.org/10828
785: AC_DEFUN([_AM_PROG_RM_F],
786: [am__rm_f_notfound=
787: AS_IF([(rm -f && rm -fr && rm -rf) 2>/dev/null], [], [am__rm_f_notfound='""'])
788: AC_SUBST(am__rm_f_notfound)
789: ])
790:
791: # Copyright (C) 2001-2024 Free Software Foundation, Inc.
1.4 moko 792: #
793: # This file is free software; the Free Software Foundation
794: # gives unlimited permission to copy and/or distribute it,
795: # with or without modifications, as long as this notice is preserved.
796:
797: # AM_RUN_LOG(COMMAND)
798: # -------------------
799: # Run COMMAND, save the exit status in ac_status, and log it.
800: # (This has been adapted from Autoconf's _AC_RUN_LOG macro.)
801: AC_DEFUN([AM_RUN_LOG],
802: [{ echo "$as_me:$LINENO: $1" >&AS_MESSAGE_LOG_FD
803: ($1) >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD
804: ac_status=$?
805: echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
806: (exit $ac_status); }])
807:
1.2 moko 808: # Check to make sure that the build environment is sane. -*- Autoconf -*-
809:
1.6 moko 810: # Copyright (C) 1996-2024 Free Software Foundation, Inc.
1.2 moko 811: #
812: # This file is free software; the Free Software Foundation
813: # gives unlimited permission to copy and/or distribute it,
814: # with or without modifications, as long as this notice is preserved.
815:
1.6 moko 816: # _AM_SLEEP_FRACTIONAL_SECONDS
817: # ----------------------------
818: AC_DEFUN([_AM_SLEEP_FRACTIONAL_SECONDS], [dnl
819: AC_CACHE_CHECK([whether sleep supports fractional seconds],
820: am_cv_sleep_fractional_seconds, [dnl
821: AS_IF([sleep 0.001 2>/dev/null], [am_cv_sleep_fractional_seconds=yes],
822: [am_cv_sleep_fractional_seconds=no])
823: ])])
824:
825: # _AM_FILESYSTEM_TIMESTAMP_RESOLUTION
826: # -----------------------------------
827: # Determine the filesystem's resolution for file modification
828: # timestamps. The coarsest we know of is FAT, with a resolution
829: # of only two seconds, even with the most recent "exFAT" extensions.
830: # The finest (e.g. ext4 with large inodes, XFS, ZFS) is one
831: # nanosecond, matching clock_gettime. However, it is probably not
832: # possible to delay execution of a shell script for less than one
833: # millisecond, due to process creation overhead and scheduling
834: # granularity, so we don't check for anything finer than that. (See below.)
835: AC_DEFUN([_AM_FILESYSTEM_TIMESTAMP_RESOLUTION], [dnl
836: AC_REQUIRE([_AM_SLEEP_FRACTIONAL_SECONDS])
837: AC_CACHE_CHECK([filesystem timestamp resolution],
838: am_cv_filesystem_timestamp_resolution, [dnl
839: # Default to the worst case.
840: am_cv_filesystem_timestamp_resolution=2
841:
842: # Only try to go finer than 1 sec if sleep can do it.
843: # Don't try 1 sec, because if 0.01 sec and 0.1 sec don't work,
844: # - 1 sec is not much of a win compared to 2 sec, and
845: # - it takes 2 seconds to perform the test whether 1 sec works.
846: #
847: # Instead, just use the default 2s on platforms that have 1s resolution,
848: # accept the extra 1s delay when using $sleep in the Automake tests, in
849: # exchange for not incurring the 2s delay for running the test for all
850: # packages.
851: #
852: am_try_resolutions=
853: if test "$am_cv_sleep_fractional_seconds" = yes; then
854: # Even a millisecond often causes a bunch of false positives,
855: # so just try a hundredth of a second. The time saved between .001 and
856: # .01 is not terribly consequential.
857: am_try_resolutions="0.01 0.1 $am_try_resolutions"
858: fi
859:
860: # In order to catch current-generation FAT out, we must *modify* files
861: # that already exist; the *creation* timestamp is finer. Use names
862: # that make ls -t sort them differently when they have equal
863: # timestamps than when they have distinct timestamps, keeping
864: # in mind that ls -t prints the *newest* file first.
865: rm -f conftest.ts?
866: : > conftest.ts1
867: : > conftest.ts2
868: : > conftest.ts3
869:
870: # Make sure ls -t actually works. Do 'set' in a subshell so we don't
871: # clobber the current shell's arguments. (Outer-level square brackets
872: # are removed by m4; they're present so that m4 does not expand
873: # <dollar><star>; be careful, easy to get confused.)
874: if (
875: set X `[ls -t conftest.ts[12]]` &&
876: {
877: test "$[]*" != "X conftest.ts1 conftest.ts2" ||
878: test "$[]*" != "X conftest.ts2 conftest.ts1";
879: }
880: ); then :; else
881: # If neither matched, then we have a broken ls. This can happen
882: # if, for instance, CONFIG_SHELL is bash and it inherits a
883: # broken ls alias from the environment. This has actually
884: # happened. Such a system could not be considered "sane".
885: _AS_ECHO_UNQUOTED(
886: ["Bad output from ls -t: \"`[ls -t conftest.ts[12]]`\""],
887: [AS_MESSAGE_LOG_FD])
888: AC_MSG_FAILURE([ls -t produces unexpected output.
889: Make sure there is not a broken ls alias in your environment.])
890: fi
891:
892: for am_try_res in $am_try_resolutions; do
893: # Any one fine-grained sleep might happen to cross the boundary
894: # between two values of a coarser actual resolution, but if we do
895: # two fine-grained sleeps in a row, at least one of them will fall
896: # entirely within a coarse interval.
897: echo alpha > conftest.ts1
898: sleep $am_try_res
899: echo beta > conftest.ts2
900: sleep $am_try_res
901: echo gamma > conftest.ts3
902:
903: # We assume that 'ls -t' will make use of high-resolution
904: # timestamps if the operating system supports them at all.
905: if (set X `ls -t conftest.ts?` &&
906: test "$[]2" = conftest.ts3 &&
907: test "$[]3" = conftest.ts2 &&
908: test "$[]4" = conftest.ts1); then
909: #
910: # Ok, ls -t worked. If we're at a resolution of 1 second, we're done,
911: # because we don't need to test make.
912: make_ok=true
913: if test $am_try_res != 1; then
914: # But if we've succeeded so far with a subsecond resolution, we
915: # have one more thing to check: make. It can happen that
916: # everything else supports the subsecond mtimes, but make doesn't;
917: # notably on macOS, which ships make 3.81 from 2006 (the last one
918: # released under GPLv2). https://bugs.gnu.org/68808
919: #
920: # We test $MAKE if it is defined in the environment, else "make".
921: # It might get overridden later, but our hope is that in practice
922: # it does not matter: it is the system "make" which is (by far)
923: # the most likely to be broken, whereas if the user overrides it,
924: # probably they did so with a better, or at least not worse, make.
925: # https://lists.gnu.org/archive/html/automake/2024-06/msg00051.html
926: #
927: # Create a Makefile (real tab character here):
928: rm -f conftest.mk
929: echo 'conftest.ts1: conftest.ts2' >conftest.mk
930: echo ' touch conftest.ts2' >>conftest.mk
931: #
932: # Now, running
933: # touch conftest.ts1; touch conftest.ts2; make
934: # should touch ts1 because ts2 is newer. This could happen by luck,
935: # but most often, it will fail if make's support is insufficient. So
936: # test for several consecutive successes.
937: #
938: # (We reuse conftest.ts[12] because we still want to modify existing
939: # files, not create new ones, per above.)
940: n=0
941: make=${MAKE-make}
942: until test $n -eq 3; do
943: echo one > conftest.ts1
944: sleep $am_try_res
945: echo two > conftest.ts2 # ts2 should now be newer than ts1
946: if $make -f conftest.mk | grep 'up to date' >/dev/null; then
947: make_ok=false
948: break # out of $n loop
949: fi
950: n=`expr $n + 1`
951: done
952: fi
953: #
954: if $make_ok; then
955: # Everything we know to check worked out, so call this resolution good.
956: am_cv_filesystem_timestamp_resolution=$am_try_res
957: break # out of $am_try_res loop
958: fi
959: # Otherwise, we'll go on to check the next resolution.
960: fi
961: done
962: rm -f conftest.ts?
963: # (end _am_filesystem_timestamp_resolution)
964: ])])
965:
1.2 moko 966: # AM_SANITY_CHECK
967: # ---------------
968: AC_DEFUN([AM_SANITY_CHECK],
1.6 moko 969: [AC_REQUIRE([_AM_FILESYSTEM_TIMESTAMP_RESOLUTION])
970: # This check should not be cached, as it may vary across builds of
971: # different projects.
972: AC_MSG_CHECKING([whether build environment is sane])
1.2 moko 973: # Reject unsafe characters in $srcdir or the absolute working directory
974: # name. Accept space and tab only in the latter.
975: am_lf='
976: '
977: case `pwd` in
978: *[[\\\"\#\$\&\'\`$am_lf]]*)
979: AC_MSG_ERROR([unsafe absolute working directory name]);;
980: esac
981: case $srcdir in
982: *[[\\\"\#\$\&\'\`$am_lf\ \ ]]*)
1.4 moko 983: AC_MSG_ERROR([unsafe srcdir value: '$srcdir']);;
1.2 moko 984: esac
1.1 paf 985:
1.4 moko 986: # Do 'set' in a subshell so we don't clobber the current shell's
1.2 moko 987: # arguments. Must try -L first in case configure is actually a
988: # symlink; some systems play weird games with the mod time of symlinks
989: # (eg FreeBSD returns the mod time of the symlink's containing
990: # directory).
1.6 moko 991: am_build_env_is_sane=no
992: am_has_slept=no
993: rm -f conftest.file
994: for am_try in 1 2; do
995: echo "timestamp, slept: $am_has_slept" > conftest.file
996: if (
997: set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
998: if test "$[]*" = "X"; then
999: # -L didn't work.
1000: set X `ls -t "$srcdir/configure" conftest.file`
1001: fi
1002: test "$[]2" = conftest.file
1003: ); then
1004: am_build_env_is_sane=yes
1005: break
1006: fi
1007: # Just in case.
1008: sleep "$am_cv_filesystem_timestamp_resolution"
1009: am_has_slept=yes
1010: done
1011:
1012: AC_MSG_RESULT([$am_build_env_is_sane])
1013: if test "$am_build_env_is_sane" = no; then
1014: AC_MSG_ERROR([newly created file is older than distributed files!
1.2 moko 1015: Check your system clock])
1016: fi
1.6 moko 1017:
1.4 moko 1018: # If we didn't sleep, we still need to ensure time stamps of config.status and
1019: # generated files are strictly newer.
1020: am_sleep_pid=
1.6 moko 1021: AS_IF([test -e conftest.file || grep 'slept: no' conftest.file >/dev/null 2>&1],, [dnl
1022: ( sleep "$am_cv_filesystem_timestamp_resolution" ) &
1.4 moko 1023: am_sleep_pid=$!
1.6 moko 1024: ])
1.4 moko 1025: AC_CONFIG_COMMANDS_PRE(
1026: [AC_MSG_CHECKING([that generated files are newer than configure])
1027: if test -n "$am_sleep_pid"; then
1028: # Hide warnings about reused PIDs.
1029: wait $am_sleep_pid 2>/dev/null
1030: fi
1031: AC_MSG_RESULT([done])])
1032: rm -f conftest.file
1033: ])
1034:
1.6 moko 1035: # Copyright (C) 2009-2024 Free Software Foundation, Inc.
1.4 moko 1036: #
1037: # This file is free software; the Free Software Foundation
1038: # gives unlimited permission to copy and/or distribute it,
1039: # with or without modifications, as long as this notice is preserved.
1040:
1.6 moko 1041: # _AM_SILENT_RULES
1042: # ----------------
1043: # Enable less verbose build rules support.
1044: AC_DEFUN([_AM_SILENT_RULES],
1045: [AM_DEFAULT_VERBOSITY=1
1046: AC_ARG_ENABLE([silent-rules], [dnl
1.4 moko 1047: AS_HELP_STRING(
1048: [--enable-silent-rules],
1049: [less verbose build output (undo: "make V=1")])
1050: AS_HELP_STRING(
1051: [--disable-silent-rules],
1052: [verbose build output (undo: "make V=0")])dnl
1053: ])
1054: dnl
1055: dnl A few 'make' implementations (e.g., NonStop OS and NextStep)
1056: dnl do not support nested variable expansions.
1057: dnl See automake bug#9928 and bug#10237.
1058: am_make=${MAKE-make}
1059: AC_CACHE_CHECK([whether $am_make supports nested variables],
1060: [am_cv_make_support_nested_variables],
1061: [if AS_ECHO([['TRUE=$(BAR$(V))
1062: BAR0=false
1063: BAR1=true
1064: V=1
1065: am__doit:
1066: @$(TRUE)
1067: .PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then
1068: am_cv_make_support_nested_variables=yes
1069: else
1070: am_cv_make_support_nested_variables=no
1071: fi])
1.6 moko 1072: AC_SUBST([AM_V])dnl
1073: AM_SUBST_NOTMAKE([AM_V])dnl
1074: AC_SUBST([AM_DEFAULT_V])dnl
1075: AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl
1076: AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
1077: AM_BACKSLASH='\'
1078: AC_SUBST([AM_BACKSLASH])dnl
1079: _AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
1080: dnl Delay evaluation of AM_DEFAULT_VERBOSITY to the end to allow multiple calls
1081: dnl to AM_SILENT_RULES to change the default value.
1082: AC_CONFIG_COMMANDS_PRE([dnl
1083: case $enable_silent_rules in @%:@ (((
1084: yes) AM_DEFAULT_VERBOSITY=0;;
1085: no) AM_DEFAULT_VERBOSITY=1;;
1086: esac
1.4 moko 1087: if test $am_cv_make_support_nested_variables = yes; then
1088: dnl Using '$V' instead of '$(V)' breaks IRIX make.
1089: AM_V='$(V)'
1090: AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
1091: else
1092: AM_V=$AM_DEFAULT_VERBOSITY
1093: AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
1094: fi
1.6 moko 1095: ])dnl
1.4 moko 1096: ])
1.1 paf 1097:
1.6 moko 1098: # AM_SILENT_RULES([DEFAULT])
1099: # --------------------------
1100: # Set the default verbosity level to DEFAULT ("yes" being less verbose, "no" or
1101: # empty being verbose).
1102: AC_DEFUN([AM_SILENT_RULES],
1103: [AC_REQUIRE([_AM_SILENT_RULES])
1104: AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1])])
1105:
1106: # Copyright (C) 2001-2024 Free Software Foundation, Inc.
1.2 moko 1107: #
1108: # This file is free software; the Free Software Foundation
1109: # gives unlimited permission to copy and/or distribute it,
1110: # with or without modifications, as long as this notice is preserved.
1.1 paf 1111:
1.2 moko 1112: # AM_PROG_INSTALL_STRIP
1113: # ---------------------
1.4 moko 1114: # One issue with vendor 'install' (even GNU) is that you can't
1.2 moko 1115: # specify the program used to strip binaries. This is especially
1116: # annoying in cross-compiling environments, where the build's strip
1117: # is unlikely to handle the host's binaries.
1118: # Fortunately install-sh will honor a STRIPPROG variable, so we
1.4 moko 1119: # always use install-sh in "make install-strip", and initialize
1.2 moko 1120: # STRIPPROG with the value of the STRIP variable (set by the user).
1121: AC_DEFUN([AM_PROG_INSTALL_STRIP],
1122: [AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
1.4 moko 1123: # Installed binaries are usually stripped using 'strip' when the user
1124: # run "make install-strip". However 'strip' might not be the right
1.2 moko 1125: # tool to use in cross-compilation environments, therefore Automake
1.4 moko 1126: # will honor the 'STRIP' environment variable to overrule this program.
1127: dnl Don't test for $cross_compiling = yes, because it might be 'maybe'.
1.2 moko 1128: if test "$cross_compiling" != no; then
1129: AC_CHECK_TOOL([STRIP], [strip], :)
1130: fi
1131: INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
1132: AC_SUBST([INSTALL_STRIP_PROGRAM])])
1.1 paf 1133:
1.6 moko 1134: # Copyright (C) 2006-2024 Free Software Foundation, Inc.
1.2 moko 1135: #
1136: # This file is free software; the Free Software Foundation
1137: # gives unlimited permission to copy and/or distribute it,
1138: # with or without modifications, as long as this notice is preserved.
1.1 paf 1139:
1.2 moko 1140: # _AM_SUBST_NOTMAKE(VARIABLE)
1141: # ---------------------------
1142: # Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
1143: # This macro is traced by Automake.
1144: AC_DEFUN([_AM_SUBST_NOTMAKE])
1145:
1146: # AM_SUBST_NOTMAKE(VARIABLE)
1.4 moko 1147: # --------------------------
1.2 moko 1148: # Public sister of _AM_SUBST_NOTMAKE.
1149: AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
1.1 paf 1150:
1.2 moko 1151: # Check how to create a tarball. -*- Autoconf -*-
1.1 paf 1152:
1.6 moko 1153: # Copyright (C) 2004-2024 Free Software Foundation, Inc.
1.2 moko 1154: #
1155: # This file is free software; the Free Software Foundation
1156: # gives unlimited permission to copy and/or distribute it,
1157: # with or without modifications, as long as this notice is preserved.
1.1 paf 1158:
1.2 moko 1159: # _AM_PROG_TAR(FORMAT)
1160: # --------------------
1161: # Check how to create a tarball in format FORMAT.
1.4 moko 1162: # FORMAT should be one of 'v7', 'ustar', or 'pax'.
1.2 moko 1163: #
1164: # Substitute a variable $(am__tar) that is a command
1165: # writing to stdout a FORMAT-tarball containing the directory
1166: # $tardir.
1167: # tardir=directory && $(am__tar) > result.tar
1168: #
1169: # Substitute a variable $(am__untar) that extract such
1170: # a tarball read from stdin.
1171: # $(am__untar) < result.tar
1.4 moko 1172: #
1.2 moko 1173: AC_DEFUN([_AM_PROG_TAR],
1.4 moko 1174: [# Always define AMTAR for backward compatibility. Yes, it's still used
1175: # in the wild :-( We should find a proper way to deprecate it ...
1176: AC_SUBST([AMTAR], ['$${TAR-tar}'])
1177:
1178: # We'll loop over all known methods to create a tar archive until one works.
1.2 moko 1179: _am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
1180:
1.4 moko 1181: m4_if([$1], [v7],
1182: [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],
1.1 paf 1183:
1.4 moko 1184: [m4_case([$1],
1185: [ustar],
1186: [# The POSIX 1988 'ustar' format is defined with fixed-size fields.
1187: # There is notably a 21 bits limit for the UID and the GID. In fact,
1188: # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343
1189: # and bug#13588).
1190: am_max_uid=2097151 # 2^21 - 1
1191: am_max_gid=$am_max_uid
1192: # The $UID and $GID variables are not portable, so we need to resort
1193: # to the POSIX-mandated id(1) utility. Errors in the 'id' calls
1194: # below are definitely unexpected, so allow the users to see them
1195: # (that is, avoid stderr redirection).
1196: am_uid=`id -u || echo unknown`
1197: am_gid=`id -g || echo unknown`
1198: AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format])
1.6 moko 1199: if test x$am_uid = xunknown; then
1200: AC_MSG_WARN([ancient id detected; assuming current UID is ok, but dist-ustar might not work])
1201: elif test $am_uid -le $am_max_uid; then
1202: AC_MSG_RESULT([yes])
1.4 moko 1203: else
1.6 moko 1204: AC_MSG_RESULT([no])
1205: _am_tools=none
1.4 moko 1206: fi
1207: AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format])
1.6 moko 1208: if test x$gm_gid = xunknown; then
1209: AC_MSG_WARN([ancient id detected; assuming current GID is ok, but dist-ustar might not work])
1210: elif test $am_gid -le $am_max_gid; then
1211: AC_MSG_RESULT([yes])
1.4 moko 1212: else
1213: AC_MSG_RESULT([no])
1214: _am_tools=none
1215: fi],
1216:
1217: [pax],
1218: [],
1219:
1220: [m4_fatal([Unknown tar format])])
1221:
1222: AC_MSG_CHECKING([how to create a $1 tar archive])
1223:
1224: # Go ahead even if we have the value already cached. We do so because we
1225: # need to set the values for the 'am__tar' and 'am__untar' variables.
1226: _am_tools=${am_cv_prog_tar_$1-$_am_tools}
1227:
1228: for _am_tool in $_am_tools; do
1229: case $_am_tool in
1230: gnutar)
1231: for _am_tar in tar gnutar gtar; do
1232: AM_RUN_LOG([$_am_tar --version]) && break
1233: done
1234: am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
1235: am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
1236: am__untar="$_am_tar -xf -"
1237: ;;
1238: plaintar)
1239: # Must skip GNU tar: if it does not support --format= it doesn't create
1240: # ustar tarball either.
1241: (tar --version) >/dev/null 2>&1 && continue
1242: am__tar='tar chf - "$$tardir"'
1243: am__tar_='tar chf - "$tardir"'
1244: am__untar='tar xf -'
1245: ;;
1246: pax)
1247: am__tar='pax -L -x $1 -w "$$tardir"'
1248: am__tar_='pax -L -x $1 -w "$tardir"'
1249: am__untar='pax -r'
1250: ;;
1251: cpio)
1252: am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
1253: am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
1254: am__untar='cpio -i -H $1 -d'
1255: ;;
1256: none)
1257: am__tar=false
1258: am__tar_=false
1259: am__untar=false
1260: ;;
1261: esac
1262:
1263: # If the value was cached, stop now. We just wanted to have am__tar
1264: # and am__untar set.
1265: test -n "${am_cv_prog_tar_$1}" && break
1266:
1267: # tar/untar a dummy directory, and stop if the command works.
1268: rm -rf conftest.dir
1269: mkdir conftest.dir
1270: echo GrepMe > conftest.dir/file
1271: AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
1272: rm -rf conftest.dir
1273: if test -s conftest.tar; then
1274: AM_RUN_LOG([$am__untar <conftest.tar])
1275: AM_RUN_LOG([cat conftest.dir/file])
1276: grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
1277: fi
1278: done
1.2 moko 1279: rm -rf conftest.dir
1.1 paf 1280:
1.4 moko 1281: AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
1282: AC_MSG_RESULT([$am_cv_prog_tar_$1])])
1283:
1.2 moko 1284: AC_SUBST([am__tar])
1285: AC_SUBST([am__untar])
1286: ]) # _AM_PROG_TAR
1287:
1.6 moko 1288: # Copyright (C) 2022-2024 Free Software Foundation, Inc.
1289: #
1290: # This file is free software; the Free Software Foundation
1291: # gives unlimited permission to copy and/or distribute it,
1292: # with or without modifications, as long as this notice is preserved.
1293:
1294: # _AM_PROG_XARGS_N
1295: # ----------------
1296: # Check whether 'xargs -n' works. It should work everywhere, so the fallback
1297: # is not optimized at all as we never expect to use it.
1298: AC_DEFUN([_AM_PROG_XARGS_N],
1299: [AC_CACHE_CHECK([xargs -n works], am_cv_xargs_n_works, [dnl
1300: AS_IF([test "`echo 1 2 3 | xargs -n2 echo`" = "1 2
1301: 3"], [am_cv_xargs_n_works=yes], [am_cv_xargs_n_works=no])])
1302: AS_IF([test "$am_cv_xargs_n_works" = yes], [am__xargs_n='xargs -n'], [dnl
1303: am__xargs_n='am__xargs_n () { shift; sed "s/ /\\n/g" | while read am__xargs_n_arg; do "$@" "$am__xargs_n_arg"; done; }'
1304: ])dnl
1305: AC_SUBST(am__xargs_n)
1306: ])
1307:
1.2 moko 1308: m4_include([m4/libtool.m4])
1.6 moko 1309: m4_include([m4/ltargz.m4])
1.2 moko 1310: m4_include([m4/ltdl.m4])
1311: m4_include([m4/ltoptions.m4])
1312: m4_include([m4/ltsugar.m4])
1313: m4_include([m4/ltversion.m4])
1314: m4_include([m4/lt~obsolete.m4])
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