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1 # generated automatically by aclocal 1.16.5 -*- Autoconf -*-
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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
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448 # TODO: see whether this extra hack can be removed once we start
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450 AS_CASE([$CONFIG_FILES],
451 [*\'*], [eval set x "$CONFIG_FILES"],
452 [*], [set x $CONFIG_FILES])
453 shift
454 # Used to flag and report bootstrapping failures.
455 am_rc=0
456 for am_mf
457 do
458 # Strip MF so we end up with the name of the file.
459 am_mf=`AS_ECHO(["$am_mf"]) | sed -e 's/:.*$//'`
460 # Check whether this is an Automake generated Makefile which includes
461 # dependency-tracking related rules and includes.
462 # Grep'ing the whole file directly is not great: AIX grep has a line
463 # limit of 2048, but all sed's we know have understand at least 4000.
464 sed -n 's,^am--depfiles:.*,X,p' "$am_mf" | grep X >/dev/null 2>&1 \
465 || continue
466 am_dirpart=`AS_DIRNAME(["$am_mf"])`
467 am_filepart=`AS_BASENAME(["$am_mf"])`
468 AM_RUN_LOG([cd "$am_dirpart" \
469 && sed -e '/# am--include-marker/d' "$am_filepart" \
470 | $MAKE -f - am--depfiles]) || am_rc=$?
471 done
472 if test $am_rc -ne 0; then
473 AC_MSG_FAILURE([Something went wrong bootstrapping makefile fragments
474 for automatic dependency tracking. If GNU make was not used, consider
475 re-running the configure script with MAKE="gmake" (or whatever is
476 necessary). You can also try re-running configure with the
477 '--disable-dependency-tracking' option to at least be able to build
478 the package (albeit without support for automatic dependency tracking).])
479 fi
480 AS_UNSET([am_dirpart])
481 AS_UNSET([am_filepart])
482 AS_UNSET([am_mf])
483 AS_UNSET([am_rc])
484 rm -f conftest-deps.mk
485 }
486 ])# _AM_OUTPUT_DEPENDENCY_COMMANDS
487
488
489 # AM_OUTPUT_DEPENDENCY_COMMANDS
490 # -----------------------------
491 # This macro should only be invoked once -- use via AC_REQUIRE.
492 #
493 # This code is only required when automatic dependency tracking is enabled.
494 # This creates each '.Po' and '.Plo' makefile fragment that we'll need in
495 # order to bootstrap the dependency handling code.
496 AC_DEFUN([AM_OUTPUT_DEPENDENCY_COMMANDS],
497 [AC_CONFIG_COMMANDS([depfiles],
498 [test x"$AMDEP_TRUE" != x"" || _AM_OUTPUT_DEPENDENCY_COMMANDS],
499 [AMDEP_TRUE="$AMDEP_TRUE" MAKE="${MAKE-make}"])])
500
501 # Do all the work for Automake. -*- Autoconf -*-
502
503 # Copyright (C) 1996-2021 Free Software Foundation, Inc.
504 #
505 # This file is free software; the Free Software Foundation
506 # gives unlimited permission to copy and/or distribute it,
507 # with or without modifications, as long as this notice is preserved.
508
509 # This macro actually does too much. Some checks are only needed if
510 # your package does certain things. But this isn't really a big deal.
511
512 dnl Redefine AC_PROG_CC to automatically invoke _AM_PROG_CC_C_O.
513 m4_define([AC_PROG_CC],
514 m4_defn([AC_PROG_CC])
515 [_AM_PROG_CC_C_O
516 ])
517
518 # AM_INIT_AUTOMAKE(PACKAGE, VERSION, [NO-DEFINE])
519 # AM_INIT_AUTOMAKE([OPTIONS])
520 # -----------------------------------------------
521 # The call with PACKAGE and VERSION arguments is the old style
522 # call (pre autoconf-2.50), which is being phased out. PACKAGE
523 # and VERSION should now be passed to AC_INIT and removed from
524 # the call to AM_INIT_AUTOMAKE.
525 # We support both call styles for the transition. After
526 # the next Automake release, Autoconf can make the AC_INIT
527 # arguments mandatory, and then we can depend on a new Autoconf
528 # release and drop the old call support.
529 AC_DEFUN([AM_INIT_AUTOMAKE],
530 [AC_PREREQ([2.65])dnl
531 m4_ifdef([_$0_ALREADY_INIT],
532 [m4_fatal([$0 expanded multiple times
533 ]m4_defn([_$0_ALREADY_INIT]))],
534 [m4_define([_$0_ALREADY_INIT], m4_expansion_stack)])dnl
535 dnl Autoconf wants to disallow AM_ names. We explicitly allow
536 dnl the ones we care about.
537 m4_pattern_allow([^AM_[A-Z]+FLAGS$])dnl
538 AC_REQUIRE([AM_SET_CURRENT_AUTOMAKE_VERSION])dnl
539 AC_REQUIRE([AC_PROG_INSTALL])dnl
540 if test "`cd $srcdir && pwd`" != "`pwd`"; then
541 # Use -I$(srcdir) only when $(srcdir) != ., so that make's output
542 # is not polluted with repeated "-I."
543 AC_SUBST([am__isrc], [' -I$(srcdir)'])_AM_SUBST_NOTMAKE([am__isrc])dnl
544 # test to see if srcdir already configured
545 if test -f $srcdir/config.status; then
546 AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
547 fi
548 fi
549
550 # test whether we have cygpath
551 if test -z "$CYGPATH_W"; then
552 if (cygpath --version) >/dev/null 2>/dev/null; then
553 CYGPATH_W='cygpath -w'
554 else
555 CYGPATH_W=echo
556 fi
557 fi
558 AC_SUBST([CYGPATH_W])
559
560 # Define the identity of the package.
561 dnl Distinguish between old-style and new-style calls.
562 m4_ifval([$2],
563 [AC_DIAGNOSE([obsolete],
564 [$0: two- and three-arguments forms are deprecated.])
565 m4_ifval([$3], [_AM_SET_OPTION([no-define])])dnl
566 AC_SUBST([PACKAGE], [$1])dnl
567 AC_SUBST([VERSION], [$2])],
568 [_AM_SET_OPTIONS([$1])dnl
569 dnl Diagnose old-style AC_INIT with new-style AM_AUTOMAKE_INIT.
570 m4_if(
571 m4_ifset([AC_PACKAGE_NAME], [ok]):m4_ifset([AC_PACKAGE_VERSION], [ok]),
572 [ok:ok],,
573 [m4_fatal([AC_INIT should be called with package and version arguments])])dnl
574 AC_SUBST([PACKAGE], ['AC_PACKAGE_TARNAME'])dnl
575 AC_SUBST([VERSION], ['AC_PACKAGE_VERSION'])])dnl
576
577 _AM_IF_OPTION([no-define],,
578 [AC_DEFINE_UNQUOTED([PACKAGE], ["$PACKAGE"], [Name of package])
579 AC_DEFINE_UNQUOTED([VERSION], ["$VERSION"], [Version number of package])])dnl
580
581 # Some tools Automake needs.
582 AC_REQUIRE([AM_SANITY_CHECK])dnl
583 AC_REQUIRE([AC_ARG_PROGRAM])dnl
584 AM_MISSING_PROG([ACLOCAL], [aclocal-${am__api_version}])
585 AM_MISSING_PROG([AUTOCONF], [autoconf])
586 AM_MISSING_PROG([AUTOMAKE], [automake-${am__api_version}])
587 AM_MISSING_PROG([AUTOHEADER], [autoheader])
588 AM_MISSING_PROG([MAKEINFO], [makeinfo])
589 AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
590 AC_REQUIRE([AM_PROG_INSTALL_STRIP])dnl
591 AC_REQUIRE([AC_PROG_MKDIR_P])dnl
592 # For better backward compatibility. To be removed once Automake 1.9.x
593 # dies out for good. For more background, see:
594 # <https://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
595 # <https://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
596 AC_SUBST([mkdir_p], ['$(MKDIR_P)'])
597 # We need awk for the "check" target (and possibly the TAP driver). The
598 # system "awk" is bad on some platforms.
599 AC_REQUIRE([AC_PROG_AWK])dnl
600 AC_REQUIRE([AC_PROG_MAKE_SET])dnl
601 AC_REQUIRE([AM_SET_LEADING_DOT])dnl
602 _AM_IF_OPTION([tar-ustar], [_AM_PROG_TAR([ustar])],
603 [_AM_IF_OPTION([tar-pax], [_AM_PROG_TAR([pax])],
604 [_AM_PROG_TAR([v7])])])
605 _AM_IF_OPTION([no-dependencies],,
606 [AC_PROVIDE_IFELSE([AC_PROG_CC],
607 [_AM_DEPENDENCIES([CC])],
608 [m4_define([AC_PROG_CC],
609 m4_defn([AC_PROG_CC])[_AM_DEPENDENCIES([CC])])])dnl
610 AC_PROVIDE_IFELSE([AC_PROG_CXX],
611 [_AM_DEPENDENCIES([CXX])],
612 [m4_define([AC_PROG_CXX],
613 m4_defn([AC_PROG_CXX])[_AM_DEPENDENCIES([CXX])])])dnl
614 AC_PROVIDE_IFELSE([AC_PROG_OBJC],
615 [_AM_DEPENDENCIES([OBJC])],
616 [m4_define([AC_PROG_OBJC],
617 m4_defn([AC_PROG_OBJC])[_AM_DEPENDENCIES([OBJC])])])dnl
618 AC_PROVIDE_IFELSE([AC_PROG_OBJCXX],
619 [_AM_DEPENDENCIES([OBJCXX])],
620 [m4_define([AC_PROG_OBJCXX],
621 m4_defn([AC_PROG_OBJCXX])[_AM_DEPENDENCIES([OBJCXX])])])dnl
622 ])
623 # Variables for tags utilities; see am/tags.am
624 if test -z "$CTAGS"; then
625 CTAGS=ctags
626 fi
627 AC_SUBST([CTAGS])
628 if test -z "$ETAGS"; then
629 ETAGS=etags
630 fi
631 AC_SUBST([ETAGS])
632 if test -z "$CSCOPE"; then
633 CSCOPE=cscope
634 fi
635 AC_SUBST([CSCOPE])
636
637 AC_REQUIRE([AM_SILENT_RULES])dnl
638 dnl The testsuite driver may need to know about EXEEXT, so add the
639 dnl 'am__EXEEXT' conditional if _AM_COMPILER_EXEEXT was seen. This
640 dnl macro is hooked onto _AC_COMPILER_EXEEXT early, see below.
641 AC_CONFIG_COMMANDS_PRE(dnl
642 [m4_provide_if([_AM_COMPILER_EXEEXT],
643 [AM_CONDITIONAL([am__EXEEXT], [test -n "$EXEEXT"])])])dnl
644
645 # POSIX will say in a future version that running "rm -f" with no argument
646 # is OK; and we want to be able to make that assumption in our Makefile
647 # recipes. So use an aggressive probe to check that the usage we want is
648 # actually supported "in the wild" to an acceptable degree.
649 # See automake bug#10828.
650 # To make any issue more visible, cause the running configure to be aborted
651 # by default if the 'rm' program in use doesn't match our expectations; the
652 # user can still override this though.
653 if rm -f && rm -fr && rm -rf; then : OK; else
654 cat >&2 <<'END'
655 Oops!
656
657 Your 'rm' program seems unable to run without file operands specified
658 on the command line, even when the '-f' option is present. This is contrary
659 to the behaviour of most rm programs out there, and not conforming with
660 the upcoming POSIX standard: <http://austingroupbugs.net/view.php?id=542>
661
662 Please tell bug-automake@gnu.org about your system, including the value
663 of your $PATH and any error possibly output before this message. This
664 can help us improve future automake versions.
665
666 END
667 if test x"$ACCEPT_INFERIOR_RM_PROGRAM" = x"yes"; then
668 echo 'Configuration will proceed anyway, since you have set the' >&2
669 echo 'ACCEPT_INFERIOR_RM_PROGRAM variable to "yes"' >&2
670 echo >&2
671 else
672 cat >&2 <<'END'
673 Aborting the configuration process, to ensure you take notice of the issue.
674
675 You can download and install GNU coreutils to get an 'rm' implementation
676 that behaves properly: <https://www.gnu.org/software/coreutils/>.
677
678 If you want to complete the configuration process using your problematic
679 'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM
680 to "yes", and re-run configure.
681
682 END
683 AC_MSG_ERROR([Your 'rm' program is bad, sorry.])
684 fi
685 fi
686 dnl The trailing newline in this macro's definition is deliberate, for
687 dnl backward compatibility and to allow trailing 'dnl'-style comments
688 dnl after the AM_INIT_AUTOMAKE invocation. See automake bug#16841.
689 ])
690
691 dnl Hook into '_AC_COMPILER_EXEEXT' early to learn its expansion. Do not
692 dnl add the conditional right here, as _AC_COMPILER_EXEEXT may be further
693 dnl mangled by Autoconf and run in a shell conditional statement.
694 m4_define([_AC_COMPILER_EXEEXT],
695 m4_defn([_AC_COMPILER_EXEEXT])[m4_provide([_AM_COMPILER_EXEEXT])])
696
697 # When config.status generates a header, we must update the stamp-h file.
698 # This file resides in the same directory as the config header
699 # that is generated. The stamp files are numbered to have different names.
700
701 # Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the
702 # loop where config.status creates the headers, so we can generate
703 # our stamp files there.
704 AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK],
705 [# Compute $1's index in $config_headers.
706 _am_arg=$1
707 _am_stamp_count=1
708 for _am_header in $config_headers :; do
709 case $_am_header in
710 $_am_arg | $_am_arg:* )
711 break ;;
712 * )
713 _am_stamp_count=`expr $_am_stamp_count + 1` ;;
714 esac
715 done
716 echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
717
718 # Copyright (C) 2001-2021 Free Software Foundation, Inc.
719 #
720 # This file is free software; the Free Software Foundation
721 # gives unlimited permission to copy and/or distribute it,
722 # with or without modifications, as long as this notice is preserved.
723
724 # AM_PROG_INSTALL_SH
725 # ------------------
726 # Define $install_sh.
727 AC_DEFUN([AM_PROG_INSTALL_SH],
728 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
729 if test x"${install_sh+set}" != xset; then
730 case $am_aux_dir in
731 *\ * | *\ *)
732 install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
733 *)
734 install_sh="\${SHELL} $am_aux_dir/install-sh"
735 esac
736 fi
737 AC_SUBST([install_sh])])
738
739 # Copyright (C) 2003-2021 Free Software Foundation, Inc.
740 #
741 # This file is free software; the Free Software Foundation
742 # gives unlimited permission to copy and/or distribute it,
743 # with or without modifications, as long as this notice is preserved.
744
745 # Check whether the underlying file-system supports filenames
746 # with a leading dot. For instance MS-DOS doesn't.
747 AC_DEFUN([AM_SET_LEADING_DOT],
748 [rm -rf .tst 2>/dev/null
749 mkdir .tst 2>/dev/null
750 if test -d .tst; then
751 am__leading_dot=.
752 else
753 am__leading_dot=_
754 fi
755 rmdir .tst 2>/dev/null
756 AC_SUBST([am__leading_dot])])
757
758 # Check to see how 'make' treats includes. -*- Autoconf -*-
759
760 # Copyright (C) 2001-2021 Free Software Foundation, Inc.
761 #
762 # This file is free software; the Free Software Foundation
763 # gives unlimited permission to copy and/or distribute it,
764 # with or without modifications, as long as this notice is preserved.
765
766 # AM_MAKE_INCLUDE()
767 # -----------------
768 # Check whether make has an 'include' directive that can support all
769 # the idioms we need for our automatic dependency tracking code.
770 AC_DEFUN([AM_MAKE_INCLUDE],
771 [AC_MSG_CHECKING([whether ${MAKE-make} supports the include directive])
772 cat > confinc.mk << 'END'
773 am__doit:
774 @echo this is the am__doit target >confinc.out
775 .PHONY: am__doit
776 END
777 am__include="#"
778 am__quote=
779 # BSD make does it like this.
780 echo '.include "confinc.mk" # ignored' > confmf.BSD
781 # Other make implementations (GNU, Solaris 10, AIX) do it like this.
782 echo 'include confinc.mk # ignored' > confmf.GNU
783 _am_result=no
784 for s in GNU BSD; do
785 AM_RUN_LOG([${MAKE-make} -f confmf.$s && cat confinc.out])
786 AS_CASE([$?:`cat confinc.out 2>/dev/null`],
787 ['0:this is the am__doit target'],
788 [AS_CASE([$s],
789 [BSD], [am__include='.include' am__quote='"'],
790 [am__include='include' am__quote=''])])
791 if test "$am__include" != "#"; then
792 _am_result="yes ($s style)"
793 break
794 fi
795 done
796 rm -f confinc.* confmf.*
797 AC_MSG_RESULT([${_am_result}])
798 AC_SUBST([am__include])])
799 AC_SUBST([am__quote])])
800
801 # Fake the existence of programs that GNU maintainers use. -*- Autoconf -*-
802
803 # Copyright (C) 1997-2021 Free Software Foundation, Inc.
804 #
805 # This file is free software; the Free Software Foundation
806 # gives unlimited permission to copy and/or distribute it,
807 # with or without modifications, as long as this notice is preserved.
808
809 # AM_MISSING_PROG(NAME, PROGRAM)
810 # ------------------------------
811 AC_DEFUN([AM_MISSING_PROG],
812 [AC_REQUIRE([AM_MISSING_HAS_RUN])
813 $1=${$1-"${am_missing_run}$2"}
814 AC_SUBST($1)])
815
816 # AM_MISSING_HAS_RUN
817 # ------------------
818 # Define MISSING if not defined so far and test if it is modern enough.
819 # If it is, set am_missing_run to use it, otherwise, to nothing.
820 AC_DEFUN([AM_MISSING_HAS_RUN],
821 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
822 AC_REQUIRE_AUX_FILE([missing])dnl
823 if test x"${MISSING+set}" != xset; then
824 MISSING="\${SHELL} '$am_aux_dir/missing'"
825 fi
826 # Use eval to expand $SHELL
827 if eval "$MISSING --is-lightweight"; then
828 am_missing_run="$MISSING "
829 else
830 am_missing_run=
831 AC_MSG_WARN(['missing' script is too old or missing])
832 fi
833 ])
834
835 # Helper functions for option handling. -*- Autoconf -*-
836
837 # Copyright (C) 2001-2021 Free Software Foundation, Inc.
838 #
839 # This file is free software; the Free Software Foundation
840 # gives unlimited permission to copy and/or distribute it,
841 # with or without modifications, as long as this notice is preserved.
842
843 # _AM_MANGLE_OPTION(NAME)
844 # -----------------------
845 AC_DEFUN([_AM_MANGLE_OPTION],
846 [[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
847
848 # _AM_SET_OPTION(NAME)
849 # --------------------
850 # Set option NAME. Presently that only means defining a flag for this option.
851 AC_DEFUN([_AM_SET_OPTION],
852 [m4_define(_AM_MANGLE_OPTION([$1]), [1])])
853
854 # _AM_SET_OPTIONS(OPTIONS)
855 # ------------------------
856 # OPTIONS is a space-separated list of Automake options.
857 AC_DEFUN([_AM_SET_OPTIONS],
858 [m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
859
860 # _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
861 # -------------------------------------------
862 # Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
863 AC_DEFUN([_AM_IF_OPTION],
864 [m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
865
866 # Copyright (C) 1999-2021 Free Software Foundation, Inc.
867 #
868 # This file is free software; the Free Software Foundation
869 # gives unlimited permission to copy and/or distribute it,
870 # with or without modifications, as long as this notice is preserved.
871
872 # _AM_PROG_CC_C_O
873 # ---------------
874 # Like AC_PROG_CC_C_O, but changed for automake. We rewrite AC_PROG_CC
875 # to automatically call this.
876 AC_DEFUN([_AM_PROG_CC_C_O],
877 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
878 AC_REQUIRE_AUX_FILE([compile])dnl
879 AC_LANG_PUSH([C])dnl
880 AC_CACHE_CHECK(
881 [whether $CC understands -c and -o together],
882 [am_cv_prog_cc_c_o],
883 [AC_LANG_CONFTEST([AC_LANG_PROGRAM([])])
884 # Make sure it works both with $CC and with simple cc.
885 # Following AC_PROG_CC_C_O, we do the test twice because some
886 # compilers refuse to overwrite an existing .o file with -o,
887 # though they will create one.
888 am_cv_prog_cc_c_o=yes
889 for am_i in 1 2; do
890 if AM_RUN_LOG([$CC -c conftest.$ac_ext -o conftest2.$ac_objext]) \
891 && test -f conftest2.$ac_objext; then
892 : OK
893 else
894 am_cv_prog_cc_c_o=no
895 break
896 fi
897 done
898 rm -f core conftest*
899 unset am_i])
900 if test "$am_cv_prog_cc_c_o" != yes; then
901 # Losing compiler, so override with the script.
902 # FIXME: It is wrong to rewrite CC.
903 # But if we don't then we get into trouble of one sort or another.
904 # A longer-term fix would be to have automake use am__CC in this case,
905 # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
906 CC="$am_aux_dir/compile $CC"
907 fi
908 AC_LANG_POP([C])])
909
910 # For backward compatibility.
911 AC_DEFUN_ONCE([AM_PROG_CC_C_O], [AC_REQUIRE([AC_PROG_CC])])
912
913 # Copyright (C) 2001-2021 Free Software Foundation, Inc.
914 #
915 # This file is free software; the Free Software Foundation
916 # gives unlimited permission to copy and/or distribute it,
917 # with or without modifications, as long as this notice is preserved.
918
919 # AM_RUN_LOG(COMMAND)
920 # -------------------
921 # Run COMMAND, save the exit status in ac_status, and log it.
922 # (This has been adapted from Autoconf's _AC_RUN_LOG macro.)
923 AC_DEFUN([AM_RUN_LOG],
924 [{ echo "$as_me:$LINENO: $1" >&AS_MESSAGE_LOG_FD
925 ($1) >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD
926 ac_status=$?
927 echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
928 (exit $ac_status); }])
929
930 # Check to make sure that the build environment is sane. -*- Autoconf -*-
931
932 # Copyright (C) 1996-2021 Free Software Foundation, Inc.
933 #
934 # This file is free software; the Free Software Foundation
935 # gives unlimited permission to copy and/or distribute it,
936 # with or without modifications, as long as this notice is preserved.
937
938 # AM_SANITY_CHECK
939 # ---------------
940 AC_DEFUN([AM_SANITY_CHECK],
941 [AC_MSG_CHECKING([whether build environment is sane])
942 # Reject unsafe characters in $srcdir or the absolute working directory
943 # name. Accept space and tab only in the latter.
944 am_lf='
945 '
946 case `pwd` in
947 *[[\\\"\#\$\&\'\`$am_lf]]*)
948 AC_MSG_ERROR([unsafe absolute working directory name]);;
949 esac
950 case $srcdir in
951 *[[\\\"\#\$\&\'\`$am_lf\ \ ]]*)
952 AC_MSG_ERROR([unsafe srcdir value: '$srcdir']);;
953 esac
954
955 # Do 'set' in a subshell so we don't clobber the current shell's
956 # arguments. Must try -L first in case configure is actually a
957 # symlink; some systems play weird games with the mod time of symlinks
958 # (eg FreeBSD returns the mod time of the symlink's containing
959 # directory).
960 if (
961 am_has_slept=no
962 for am_try in 1 2; do
963 echo "timestamp, slept: $am_has_slept" > conftest.file
964 set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
965 if test "$[*]" = "X"; then
966 # -L didn't work.
967 set X `ls -t "$srcdir/configure" conftest.file`
968 fi
969 if test "$[*]" != "X $srcdir/configure conftest.file" \
970 && test "$[*]" != "X conftest.file $srcdir/configure"; then
971
972 # If neither matched, then we have a broken ls. This can happen
973 # if, for instance, CONFIG_SHELL is bash and it inherits a
974 # broken ls alias from the environment. This has actually
975 # happened. Such a system could not be considered "sane".
976 AC_MSG_ERROR([ls -t appears to fail. Make sure there is not a broken
977 alias in your environment])
978 fi
979 if test "$[2]" = conftest.file || test $am_try -eq 2; then
980 break
981 fi
982 # Just in case.
983 sleep 1
984 am_has_slept=yes
985 done
986 test "$[2]" = conftest.file
987 )
988 then
989 # Ok.
990 :
991 else
992 AC_MSG_ERROR([newly created file is older than distributed files!
993 Check your system clock])
994 fi
995 AC_MSG_RESULT([yes])
996 # If we didn't sleep, we still need to ensure time stamps of config.status and
997 # generated files are strictly newer.
998 am_sleep_pid=
999 if grep 'slept: no' conftest.file >/dev/null 2>&1; then
1000 ( sleep 1 ) &
1001 am_sleep_pid=$!
1002 fi
1003 AC_CONFIG_COMMANDS_PRE(
1004 [AC_MSG_CHECKING([that generated files are newer than configure])
1005 if test -n "$am_sleep_pid"; then
1006 # Hide warnings about reused PIDs.
1007 wait $am_sleep_pid 2>/dev/null
1008 fi
1009 AC_MSG_RESULT([done])])
1010 rm -f conftest.file
1011 ])
1012
1013 # Copyright (C) 2009-2021 Free Software Foundation, Inc.
1014 #
1015 # This file is free software; the Free Software Foundation
1016 # gives unlimited permission to copy and/or distribute it,
1017 # with or without modifications, as long as this notice is preserved.
1018
1019 # AM_SILENT_RULES([DEFAULT])
1020 # --------------------------
1021 # Enable less verbose build rules; with the default set to DEFAULT
1022 # ("yes" being less verbose, "no" or empty being verbose).
1023 AC_DEFUN([AM_SILENT_RULES],
1024 [AC_ARG_ENABLE([silent-rules], [dnl
1025 AS_HELP_STRING(
1026 [--enable-silent-rules],
1027 [less verbose build output (undo: "make V=1")])
1028 AS_HELP_STRING(
1029 [--disable-silent-rules],
1030 [verbose build output (undo: "make V=0")])dnl
1031 ])
1032 case $enable_silent_rules in @%:@ (((
1033 yes) AM_DEFAULT_VERBOSITY=0;;
1034 no) AM_DEFAULT_VERBOSITY=1;;
1035 *) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);;
1036 esac
1037 dnl
1038 dnl A few 'make' implementations (e.g., NonStop OS and NextStep)
1039 dnl do not support nested variable expansions.
1040 dnl See automake bug#9928 and bug#10237.
1041 am_make=${MAKE-make}
1042 AC_CACHE_CHECK([whether $am_make supports nested variables],
1043 [am_cv_make_support_nested_variables],
1044 [if AS_ECHO([['TRUE=$(BAR$(V))
1045 BAR0=false
1046 BAR1=true
1047 V=1
1048 am__doit:
1049 @$(TRUE)
1050 .PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then
1051 am_cv_make_support_nested_variables=yes
1052 else
1053 am_cv_make_support_nested_variables=no
1054 fi])
1055 if test $am_cv_make_support_nested_variables = yes; then
1056 dnl Using '$V' instead of '$(V)' breaks IRIX make.
1057 AM_V='$(V)'
1058 AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
1059 else
1060 AM_V=$AM_DEFAULT_VERBOSITY
1061 AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
1062 fi
1063 AC_SUBST([AM_V])dnl
1064 AM_SUBST_NOTMAKE([AM_V])dnl
1065 AC_SUBST([AM_DEFAULT_V])dnl
1066 AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl
1067 AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
1068 AM_BACKSLASH='\'
1069 AC_SUBST([AM_BACKSLASH])dnl
1070 _AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
1071 ])
1072
1073 # Copyright (C) 2001-2021 Free Software Foundation, Inc.
1074 #
1075 # This file is free software; the Free Software Foundation
1076 # gives unlimited permission to copy and/or distribute it,
1077 # with or without modifications, as long as this notice is preserved.
1078
1079 # AM_PROG_INSTALL_STRIP
1080 # ---------------------
1081 # One issue with vendor 'install' (even GNU) is that you can't
1082 # specify the program used to strip binaries. This is especially
1083 # annoying in cross-compiling environments, where the build's strip
1084 # is unlikely to handle the host's binaries.
1085 # Fortunately install-sh will honor a STRIPPROG variable, so we
1086 # always use install-sh in "make install-strip", and initialize
1087 # STRIPPROG with the value of the STRIP variable (set by the user).
1088 AC_DEFUN([AM_PROG_INSTALL_STRIP],
1089 [AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
1090 # Installed binaries are usually stripped using 'strip' when the user
1091 # run "make install-strip". However 'strip' might not be the right
1092 # tool to use in cross-compilation environments, therefore Automake
1093 # will honor the 'STRIP' environment variable to overrule this program.
1094 dnl Don't test for $cross_compiling = yes, because it might be 'maybe'.
1095 if test "$cross_compiling" != no; then
1096 AC_CHECK_TOOL([STRIP], [strip], :)
1097 fi
1098 INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
1099 AC_SUBST([INSTALL_STRIP_PROGRAM])])
1100
1101 # Copyright (C) 2006-2021 Free Software Foundation, Inc.
1102 #
1103 # This file is free software; the Free Software Foundation
1104 # gives unlimited permission to copy and/or distribute it,
1105 # with or without modifications, as long as this notice is preserved.
1106
1107 # _AM_SUBST_NOTMAKE(VARIABLE)
1108 # ---------------------------
1109 # Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
1110 # This macro is traced by Automake.
1111 AC_DEFUN([_AM_SUBST_NOTMAKE])
1112
1113 # AM_SUBST_NOTMAKE(VARIABLE)
1114 # --------------------------
1115 # Public sister of _AM_SUBST_NOTMAKE.
1116 AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
1117
1118 m4_include([acinclude/ax_compute_relative_paths.m4])
1119 m4_include([acinclude/ax_cxx_compile_stdcxx.m4])
1120 m4_include([acinclude/ax_normalize_path.m4])
1121 m4_include([acinclude/ax_recursive_eval.m4])
1122 m4_include([acinclude/freetype2.m4])
1123 m4_include([acinclude/libtool.m4])
1124 m4_include([acinclude/ltoptions.m4])
1125 m4_include([acinclude/ltsugar.m4])
1126 m4_include([acinclude/ltversion.m4])
1127 m4_include([acinclude/lt~obsolete.m4])
1128 m4_include([acinclude/pkg.m4])
1129 m4_include([acinclude/sdl2.m4])
1130 m4_include([acinclude/tar.m4])