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5 # This file is free software; the Free Software Foundation
6 # gives unlimited permission to copy and/or distribute it,
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606 echo 'ACCEPT_INFERIOR_RM_PROGRAM variable to "yes"' >&2
610 Aborting the configuration process, to ensure you take notice of the issue.
612 You can download and install GNU coreutils to get an 'rm' implementation
613 that behaves properly: <https://www.gnu.org/software/coreutils/>.
615 If you want to complete the configuration process using your problematic
616 'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM
617 to "yes", and re-run configure.
620 AC_MSG_ERROR([Your 'rm' program is bad, sorry.])
623 dnl The trailing newline in this macro's definition is deliberate, for
624 dnl backward compatibility and to allow trailing 'dnl'-style comments
625 dnl after the AM_INIT_AUTOMAKE invocation. See automake bug#16841.
628 dnl Hook into '_AC_COMPILER_EXEEXT' early to learn its expansion. Do not
629 dnl add the conditional right here, as _AC_COMPILER_EXEEXT may be further
630 dnl mangled by Autoconf and run in a shell conditional statement.
631 m4_define([_AC_COMPILER_EXEEXT],
632 m4_defn([_AC_COMPILER_EXEEXT])[m4_provide([_AM_COMPILER_EXEEXT])])
634 # When config.status generates a header, we must update the stamp-h file.
635 # This file resides in the same directory as the config header
636 # that is generated. The stamp files are numbered to have different names.
638 # Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the
639 # loop where config.status creates the headers, so we can generate
640 # our stamp files there.
641 AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK],
642 [# Compute $1's index in $config_headers.
645 for _am_header in $config_headers :; do
647 $_am_arg | $_am_arg:* )
650 _am_stamp_count=`expr $_am_stamp_count + 1` ;;
653 echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
655 # Copyright (C) 2001-2021 Free Software Foundation, Inc.
657 # This file is free software; the Free Software Foundation
658 # gives unlimited permission to copy and/or distribute it,
659 # with or without modifications, as long as this notice is preserved.
663 # Define $install_sh.
664 AC_DEFUN([AM_PROG_INSTALL_SH],
665 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
666 if test x"${install_sh+set}" != xset; then
669 install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
671 install_sh="\${SHELL} $am_aux_dir/install-sh"
674 AC_SUBST([install_sh])])
676 # Copyright (C) 2003-2021 Free Software Foundation, Inc.
678 # This file is free software; the Free Software Foundation
679 # gives unlimited permission to copy and/or distribute it,
680 # with or without modifications, as long as this notice is preserved.
682 # Check whether the underlying file-system supports filenames
683 # with a leading dot. For instance MS-DOS doesn't.
684 AC_DEFUN([AM_SET_LEADING_DOT],
685 [rm -rf .tst 2>/dev/null
686 mkdir .tst 2>/dev/null
687 if test -d .tst; then
692 rmdir .tst 2>/dev/null
693 AC_SUBST([am__leading_dot])])
695 # Add --enable-maintainer-mode option to configure. -*- Autoconf -*-
698 # Copyright (C) 1996-2021 Free Software Foundation, Inc.
700 # This file is free software; the Free Software Foundation
701 # gives unlimited permission to copy and/or distribute it,
702 # with or without modifications, as long as this notice is preserved.
704 # AM_MAINTAINER_MODE([DEFAULT-MODE])
705 # ----------------------------------
706 # Control maintainer-specific portions of Makefiles.
707 # Default is to disable them, unless 'enable' is passed literally.
708 # For symmetry, 'disable' may be passed as well. Anyway, the user
709 # can override the default with the --enable/--disable switch.
710 AC_DEFUN([AM_MAINTAINER_MODE],
711 [m4_case(m4_default([$1], [disable]),
712 [enable], [m4_define([am_maintainer_other], [disable])],
713 [disable], [m4_define([am_maintainer_other], [enable])],
714 [m4_define([am_maintainer_other], [enable])
715 m4_warn([syntax], [unexpected argument to AM@&t@_MAINTAINER_MODE: $1])])
716 AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
717 dnl maintainer-mode's default is 'disable' unless 'enable' is passed
718 AC_ARG_ENABLE([maintainer-mode],
719 [AS_HELP_STRING([--]am_maintainer_other[-maintainer-mode],
720 am_maintainer_other[ make rules and dependencies not useful
721 (and sometimes confusing) to the casual installer])],
722 [USE_MAINTAINER_MODE=$enableval],
723 [USE_MAINTAINER_MODE=]m4_if(am_maintainer_other, [enable], [no], [yes]))
724 AC_MSG_RESULT([$USE_MAINTAINER_MODE])
725 AM_CONDITIONAL([MAINTAINER_MODE], [test $USE_MAINTAINER_MODE = yes])
726 MAINT=$MAINTAINER_MODE_TRUE
731 # Check to see how 'make' treats includes. -*- Autoconf -*-
733 # Copyright (C) 2001-2021 Free Software Foundation, Inc.
735 # This file is free software; the Free Software Foundation
736 # gives unlimited permission to copy and/or distribute it,
737 # with or without modifications, as long as this notice is preserved.
741 # Check whether make has an 'include' directive that can support all
742 # the idioms we need for our automatic dependency tracking code.
743 AC_DEFUN([AM_MAKE_INCLUDE],
744 [AC_MSG_CHECKING([whether ${MAKE-make} supports the include directive])
745 cat > confinc.mk << 'END'
747 @echo this is the am__doit target >confinc.out
752 # BSD make does it like this.
753 echo '.include "confinc.mk" # ignored' > confmf.BSD
754 # Other make implementations (GNU, Solaris 10, AIX) do it like this.
755 echo 'include confinc.mk # ignored' > confmf.GNU
758 AM_RUN_LOG([${MAKE-make} -f confmf.$s && cat confinc.out])
759 AS_CASE([$?:`cat confinc.out 2>/dev/null`],
760 ['0:this is the am__doit target'],
762 [BSD], [am__include='.include' am__quote='"'],
763 [am__include='include' am__quote=''])])
764 if test "$am__include" != "#"; then
765 _am_result="yes ($s style)"
769 rm -f confinc.* confmf.*
770 AC_MSG_RESULT([${_am_result}])
771 AC_SUBST([am__include])])
772 AC_SUBST([am__quote])])
774 # Fake the existence of programs that GNU maintainers use. -*- Autoconf -*-
776 # Copyright (C) 1997-2021 Free Software Foundation, Inc.
778 # This file is free software; the Free Software Foundation
779 # gives unlimited permission to copy and/or distribute it,
780 # with or without modifications, as long as this notice is preserved.
782 # AM_MISSING_PROG(NAME, PROGRAM)
783 # ------------------------------
784 AC_DEFUN([AM_MISSING_PROG],
785 [AC_REQUIRE([AM_MISSING_HAS_RUN])
786 $1=${$1-"${am_missing_run}$2"}
791 # Define MISSING if not defined so far and test if it is modern enough.
792 # If it is, set am_missing_run to use it, otherwise, to nothing.
793 AC_DEFUN([AM_MISSING_HAS_RUN],
794 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
795 AC_REQUIRE_AUX_FILE([missing])dnl
796 if test x"${MISSING+set}" != xset; then
797 MISSING="\${SHELL} '$am_aux_dir/missing'"
799 # Use eval to expand $SHELL
800 if eval "$MISSING --is-lightweight"; then
801 am_missing_run="$MISSING "
804 AC_MSG_WARN(['missing' script is too old or missing])
808 # Helper functions for option handling. -*- Autoconf -*-
810 # Copyright (C) 2001-2021 Free Software Foundation, Inc.
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.
816 # _AM_MANGLE_OPTION(NAME)
817 # -----------------------
818 AC_DEFUN([_AM_MANGLE_OPTION],
819 [[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
821 # _AM_SET_OPTION(NAME)
822 # --------------------
823 # Set option NAME. Presently that only means defining a flag for this option.
824 AC_DEFUN([_AM_SET_OPTION],
825 [m4_define(_AM_MANGLE_OPTION([$1]), [1])])
827 # _AM_SET_OPTIONS(OPTIONS)
828 # ------------------------
829 # OPTIONS is a space-separated list of Automake options.
830 AC_DEFUN([_AM_SET_OPTIONS],
831 [m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
833 # _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
834 # -------------------------------------------
835 # Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
836 AC_DEFUN([_AM_IF_OPTION],
837 [m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
839 # Copyright (C) 1999-2021 Free Software Foundation, Inc.
841 # This file is free software; the Free Software Foundation
842 # gives unlimited permission to copy and/or distribute it,
843 # with or without modifications, as long as this notice is preserved.
847 # Like AC_PROG_CC_C_O, but changed for automake. We rewrite AC_PROG_CC
848 # to automatically call this.
849 AC_DEFUN([_AM_PROG_CC_C_O],
850 [AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
851 AC_REQUIRE_AUX_FILE([compile])dnl
854 [whether $CC understands -c and -o together],
856 [AC_LANG_CONFTEST([AC_LANG_PROGRAM([])])
857 # Make sure it works both with $CC and with simple cc.
858 # Following AC_PROG_CC_C_O, we do the test twice because some
859 # compilers refuse to overwrite an existing .o file with -o,
860 # though they will create one.
861 am_cv_prog_cc_c_o=yes
863 if AM_RUN_LOG([$CC -c conftest.$ac_ext -o conftest2.$ac_objext]) \
864 && test -f conftest2.$ac_objext; then
873 if test "$am_cv_prog_cc_c_o" != yes; then
874 # Losing compiler, so override with the script.
875 # FIXME: It is wrong to rewrite CC.
876 # But if we don't then we get into trouble of one sort or another.
877 # A longer-term fix would be to have automake use am__CC in this case,
878 # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
879 CC="$am_aux_dir/compile $CC"
883 # For backward compatibility.
884 AC_DEFUN_ONCE([AM_PROG_CC_C_O], [AC_REQUIRE([AC_PROG_CC])])
886 # Copyright (C) 2001-2021 Free Software Foundation, Inc.
888 # This file is free software; the Free Software Foundation
889 # gives unlimited permission to copy and/or distribute it,
890 # with or without modifications, as long as this notice is preserved.
892 # AM_RUN_LOG(COMMAND)
893 # -------------------
894 # Run COMMAND, save the exit status in ac_status, and log it.
895 # (This has been adapted from Autoconf's _AC_RUN_LOG macro.)
896 AC_DEFUN([AM_RUN_LOG],
897 [{ echo "$as_me:$LINENO: $1" >&AS_MESSAGE_LOG_FD
898 ($1) >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD
900 echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
901 (exit $ac_status); }])
903 # Check to make sure that the build environment is sane. -*- Autoconf -*-
905 # Copyright (C) 1996-2021 Free Software Foundation, Inc.
907 # This file is free software; the Free Software Foundation
908 # gives unlimited permission to copy and/or distribute it,
909 # with or without modifications, as long as this notice is preserved.
913 AC_DEFUN([AM_SANITY_CHECK],
914 [AC_MSG_CHECKING([whether build environment is sane])
915 # Reject unsafe characters in $srcdir or the absolute working directory
916 # name. Accept space and tab only in the latter.
920 *[[\\\"\#\$\&\'\`$am_lf]]*)
921 AC_MSG_ERROR([unsafe absolute working directory name]);;
924 *[[\\\"\#\$\&\'\`$am_lf\ \ ]]*)
925 AC_MSG_ERROR([unsafe srcdir value: '$srcdir']);;
928 # Do 'set' in a subshell so we don't clobber the current shell's
929 # arguments. Must try -L first in case configure is actually a
930 # symlink; some systems play weird games with the mod time of symlinks
931 # (eg FreeBSD returns the mod time of the symlink's containing
935 for am_try in 1 2; do
936 echo "timestamp, slept: $am_has_slept" > conftest.file
937 set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
938 if test "$[*]" = "X"; then
940 set X `ls -t "$srcdir/configure" conftest.file`
942 if test "$[*]" != "X $srcdir/configure conftest.file" \
943 && test "$[*]" != "X conftest.file $srcdir/configure"; then
945 # If neither matched, then we have a broken ls. This can happen
946 # if, for instance, CONFIG_SHELL is bash and it inherits a
947 # broken ls alias from the environment. This has actually
948 # happened. Such a system could not be considered "sane".
949 AC_MSG_ERROR([ls -t appears to fail. Make sure there is not a broken
950 alias in your environment])
952 if test "$[2]" = conftest.file || test $am_try -eq 2; then
959 test "$[2]" = conftest.file
965 AC_MSG_ERROR([newly created file is older than distributed files!
966 Check your system clock])
969 # If we didn't sleep, we still need to ensure time stamps of config.status and
970 # generated files are strictly newer.
972 if grep 'slept: no' conftest.file >/dev/null 2>&1; then
976 AC_CONFIG_COMMANDS_PRE(
977 [AC_MSG_CHECKING([that generated files are newer than configure])
978 if test -n "$am_sleep_pid"; then
979 # Hide warnings about reused PIDs.
980 wait $am_sleep_pid 2>/dev/null
982 AC_MSG_RESULT([done])])
986 # Copyright (C) 2009-2021 Free Software Foundation, Inc.
988 # This file is free software; the Free Software Foundation
989 # gives unlimited permission to copy and/or distribute it,
990 # with or without modifications, as long as this notice is preserved.
992 # AM_SILENT_RULES([DEFAULT])
993 # --------------------------
994 # Enable less verbose build rules; with the default set to DEFAULT
995 # ("yes" being less verbose, "no" or empty being verbose).
996 AC_DEFUN([AM_SILENT_RULES],
997 [AC_ARG_ENABLE([silent-rules], [dnl
999 [--enable-silent-rules],
1000 [less verbose build output (undo: "make V=1")])
1002 [--disable-silent-rules],
1003 [verbose build output (undo: "make V=0")])dnl
1005 case $enable_silent_rules in @%:@ (((
1006 yes) AM_DEFAULT_VERBOSITY=0;;
1007 no) AM_DEFAULT_VERBOSITY=1;;
1008 *) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);;
1011 dnl A few 'make' implementations (e.g., NonStop OS and NextStep)
1012 dnl do not support nested variable expansions.
1013 dnl See automake bug#9928 and bug#10237.
1014 am_make=${MAKE-make}
1015 AC_CACHE_CHECK([whether $am_make supports nested variables],
1016 [am_cv_make_support_nested_variables],
1017 [if AS_ECHO([['TRUE=$(BAR$(V))
1023 .PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then
1024 am_cv_make_support_nested_variables=yes
1026 am_cv_make_support_nested_variables=no
1028 if test $am_cv_make_support_nested_variables = yes; then
1029 dnl Using '$V' instead of '$(V)' breaks IRIX make.
1031 AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
1033 AM_V=$AM_DEFAULT_VERBOSITY
1034 AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
1037 AM_SUBST_NOTMAKE([AM_V])dnl
1038 AC_SUBST([AM_DEFAULT_V])dnl
1039 AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl
1040 AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
1042 AC_SUBST([AM_BACKSLASH])dnl
1043 _AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
1046 # Copyright (C) 2001-2021 Free Software Foundation, Inc.
1048 # This file is free software; the Free Software Foundation
1049 # gives unlimited permission to copy and/or distribute it,
1050 # with or without modifications, as long as this notice is preserved.
1052 # AM_PROG_INSTALL_STRIP
1053 # ---------------------
1054 # One issue with vendor 'install' (even GNU) is that you can't
1055 # specify the program used to strip binaries. This is especially
1056 # annoying in cross-compiling environments, where the build's strip
1057 # is unlikely to handle the host's binaries.
1058 # Fortunately install-sh will honor a STRIPPROG variable, so we
1059 # always use install-sh in "make install-strip", and initialize
1060 # STRIPPROG with the value of the STRIP variable (set by the user).
1061 AC_DEFUN([AM_PROG_INSTALL_STRIP],
1062 [AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
1063 # Installed binaries are usually stripped using 'strip' when the user
1064 # run "make install-strip". However 'strip' might not be the right
1065 # tool to use in cross-compilation environments, therefore Automake
1066 # will honor the 'STRIP' environment variable to overrule this program.
1067 dnl Don't test for $cross_compiling = yes, because it might be 'maybe'.
1068 if test "$cross_compiling" != no; then
1069 AC_CHECK_TOOL([STRIP], [strip], :)
1071 INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
1072 AC_SUBST([INSTALL_STRIP_PROGRAM])])
1074 # Copyright (C) 2006-2021 Free Software Foundation, Inc.
1076 # This file is free software; the Free Software Foundation
1077 # gives unlimited permission to copy and/or distribute it,
1078 # with or without modifications, as long as this notice is preserved.
1080 # _AM_SUBST_NOTMAKE(VARIABLE)
1081 # ---------------------------
1082 # Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
1083 # This macro is traced by Automake.
1084 AC_DEFUN([_AM_SUBST_NOTMAKE])
1086 # AM_SUBST_NOTMAKE(VARIABLE)
1087 # --------------------------
1088 # Public sister of _AM_SUBST_NOTMAKE.
1089 AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
1091 # Check how to create a tarball. -*- Autoconf -*-
1093 # Copyright (C) 2004-2021 Free Software Foundation, Inc.
1095 # This file is free software; the Free Software Foundation
1096 # gives unlimited permission to copy and/or distribute it,
1097 # with or without modifications, as long as this notice is preserved.
1099 # _AM_PROG_TAR(FORMAT)
1100 # --------------------
1101 # Check how to create a tarball in format FORMAT.
1102 # FORMAT should be one of 'v7', 'ustar', or 'pax'.
1104 # Substitute a variable $(am__tar) that is a command
1105 # writing to stdout a FORMAT-tarball containing the directory
1107 # tardir=directory && $(am__tar) > result.tar
1109 # Substitute a variable $(am__untar) that extract such
1110 # a tarball read from stdin.
1111 # $(am__untar) < result.tar
1113 AC_DEFUN([_AM_PROG_TAR],
1114 [# Always define AMTAR for backward compatibility. Yes, it's still used
1115 # in the wild :-( We should find a proper way to deprecate it ...
1116 AC_SUBST([AMTAR], ['$${TAR-tar}'])
1118 # We'll loop over all known methods to create a tar archive until one works.
1119 _am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
1122 [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],
1126 [# The POSIX 1988 'ustar' format is defined with fixed-size fields.
1127 # There is notably a 21 bits limit for the UID and the GID. In fact,
1128 # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343
1130 am_max_uid=2097151 # 2^21 - 1
1131 am_max_gid=$am_max_uid
1132 # The $UID and $GID variables are not portable, so we need to resort
1133 # to the POSIX-mandated id(1) utility. Errors in the 'id' calls
1134 # below are definitely unexpected, so allow the users to see them
1135 # (that is, avoid stderr redirection).
1136 am_uid=`id -u || echo unknown`
1137 am_gid=`id -g || echo unknown`
1138 AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format])
1139 if test $am_uid -le $am_max_uid; then
1140 AC_MSG_RESULT([yes])
1145 AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format])
1146 if test $am_gid -le $am_max_gid; then
1147 AC_MSG_RESULT([yes])
1156 [m4_fatal([Unknown tar format])])
1158 AC_MSG_CHECKING([how to create a $1 tar archive])
1160 # Go ahead even if we have the value already cached. We do so because we
1161 # need to set the values for the 'am__tar' and 'am__untar' variables.
1162 _am_tools=${am_cv_prog_tar_$1-$_am_tools}
1164 for _am_tool in $_am_tools; do
1167 for _am_tar in tar gnutar gtar; do
1168 AM_RUN_LOG([$_am_tar --version]) && break
1170 am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
1171 am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
1172 am__untar="$_am_tar -xf -"
1175 # Must skip GNU tar: if it does not support --format= it doesn't create
1176 # ustar tarball either.
1177 (tar --version) >/dev/null 2>&1 && continue
1178 am__tar='tar chf - "$$tardir"'
1179 am__tar_='tar chf - "$tardir"'
1180 am__untar='tar xf -'
1183 am__tar='pax -L -x $1 -w "$$tardir"'
1184 am__tar_='pax -L -x $1 -w "$tardir"'
1188 am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
1189 am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
1190 am__untar='cpio -i -H $1 -d'
1199 # If the value was cached, stop now. We just wanted to have am__tar
1200 # and am__untar set.
1201 test -n "${am_cv_prog_tar_$1}" && break
1203 # tar/untar a dummy directory, and stop if the command works.
1206 echo GrepMe > conftest.dir/file
1207 AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
1209 if test -s conftest.tar; then
1210 AM_RUN_LOG([$am__untar <conftest.tar])
1211 AM_RUN_LOG([cat conftest.dir/file])
1212 grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
1217 AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
1218 AC_MSG_RESULT([$am_cv_prog_tar_$1])])
1221 AC_SUBST([am__untar])