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9e14fd4d 1# generated automatically by aclocal 1.16.3 -*- Autoconf -*-
ca537585 2
9e14fd4d 3# Copyright (C) 1996-2020 Free Software Foundation, Inc.
1fed6a87 4
1fed6a87 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
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1fed6a87 15m4_ifndef([AC_AUTOCONF_VERSION],
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ca537585 21To do so, use the procedure documented by the package, typically 'autoreconf'.])])
1fed6a87 22
9e14fd4d 23# Copyright (C) 2002-2020 Free Software Foundation, Inc.
1fed6a87 24#
25# This file is free software; the Free Software Foundation
26# gives unlimited permission to copy and/or distribute it,
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59# Copyright (C) 2011-2020 Free Software Foundation, Inc.
60#
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9e14fd4d 121# Copyright (C) 2001-2020 Free Software Foundation, Inc.
1fed6a87 122#
123# This file is free software; the Free Software Foundation
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9e14fd4d 173# Copyright (C) 1997-2020 Free Software Foundation, Inc.
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175# This file is free software; the Free Software Foundation
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1fed6a87 179# AM_CONDITIONAL(NAME, SHELL-CONDITION)
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9e14fd4d 204# Copyright (C) 1999-2020 Free Software Foundation, Inc.
1fed6a87 205#
206# This file is free software; the Free Software Foundation
207# gives unlimited permission to copy and/or distribute it,
208# with or without modifications, as long as this notice is preserved.
209
1fed6a87 210
ca537585 211# There are a few dirty hacks below to avoid letting 'AC_PROG_CC' be
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248 # making a dummy file named 'D' -- because '-MD' means "put the output
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262 mkdir sub
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264 am_cv_$1_dependencies_compiler_type=none
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286 : > sub/conftest.c
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289 # Using ": > sub/conftst$i.h" creates only sub/conftst1.h with
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ca537585 295 # We check with '-c' and '-o' for the sake of the "dashmstdout"
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297 # handle '-M -o', and we need to detect this. Also, some Intel
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307 # After this tag, mechanisms are not by side-effect, so they'll
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312 break
313 fi
314 ;;
ca537585
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315 msvc7 | msvc7msys | msvisualcpp | msvcmsys)
316 # This compiler won't grok '-c -o', but also, the minuso test has
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328 >/dev/null 2>conftest.err &&
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336 # When given -MP, icc 7.0 and 7.1 complain thusly:
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360
361# AM_SET_DEPDIR
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ca537585
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374[AC_ARG_ENABLE([dependency-tracking], [dnl
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ca537585
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389AC_SUBST([am__nodep])dnl
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392
393# Generate code to set up dependency tracking. -*- Autoconf -*-
394
9e14fd4d 395# Copyright (C) 1999-2020 Free Software Foundation, Inc.
1fed6a87 396#
397# This file is free software; the Free Software Foundation
398# gives unlimited permission to copy and/or distribute it,
399# with or without modifications, as long as this notice is preserved.
400
1fed6a87 401# _AM_OUTPUT_DEPENDENCY_COMMANDS
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408 # TODO: see whether this extra hack can be removed once we start
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1fed6a87 413 shift
9e14fd4d
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414 # Used to flag and report bootstrapping failures.
415 am_rc=0
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1fed6a87 417 do
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419 am_mf=`AS_ECHO(["$am_mf"]) | sed -e 's/:.*$//'`
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9e14fd4d
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424 sed -n 's,^am--depfiles:.*,X,p' "$am_mf" | grep X >/dev/null 2>&1 \
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1fed6a87 431 done
9e14fd4d
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432 if test $am_rc -ne 0; then
433 AC_MSG_FAILURE([Something went wrong bootstrapping makefile fragments
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447
448
449# AM_OUTPUT_DEPENDENCY_COMMANDS
450# -----------------------------
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453# This code is only required when automatic dependency tracking is enabled.
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1fed6a87 460
1fed6a87 461# Do all the work for Automake. -*- Autoconf -*-
462
9e14fd4d 463# Copyright (C) 1996-2020 Free Software Foundation, Inc.
1fed6a87 464#
465# This file is free software; the Free Software Foundation
466# gives unlimited permission to copy and/or distribute it,
467# with or without modifications, as long as this notice is preserved.
468
1fed6a87 469# This macro actually does too much. Some checks are only needed if
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471
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472dnl Redefine AC_PROG_CC to automatically invoke _AM_PROG_CC_C_O.
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519[AC_DIAGNOSE([obsolete],
520 [$0: two- and three-arguments forms are deprecated.])
521m4_ifval([$3], [_AM_SET_OPTION([no-define])])dnl
1fed6a87 522 AC_SUBST([PACKAGE], [$1])dnl
523 AC_SUBST([VERSION], [$2])],
524[_AM_SET_OPTIONS([$1])dnl
525dnl Diagnose old-style AC_INIT with new-style AM_AUTOMAKE_INIT.
ca537585
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526m4_if(
527 m4_ifdef([AC_PACKAGE_NAME], [ok]):m4_ifdef([AC_PACKAGE_VERSION], [ok]),
528 [ok:ok],,
1fed6a87 529 [m4_fatal([AC_INIT should be called with package and version arguments])])dnl
530 AC_SUBST([PACKAGE], ['AC_PACKAGE_TARNAME'])dnl
531 AC_SUBST([VERSION], ['AC_PACKAGE_VERSION'])])dnl
532
533_AM_IF_OPTION([no-define],,
ca537585
H
534[AC_DEFINE_UNQUOTED([PACKAGE], ["$PACKAGE"], [Name of package])
535 AC_DEFINE_UNQUOTED([VERSION], ["$VERSION"], [Version number of package])])dnl
1fed6a87 536
537# Some tools Automake needs.
538AC_REQUIRE([AM_SANITY_CHECK])dnl
539AC_REQUIRE([AC_ARG_PROGRAM])dnl
ca537585
H
540AM_MISSING_PROG([ACLOCAL], [aclocal-${am__api_version}])
541AM_MISSING_PROG([AUTOCONF], [autoconf])
542AM_MISSING_PROG([AUTOMAKE], [automake-${am__api_version}])
543AM_MISSING_PROG([AUTOHEADER], [autoheader])
544AM_MISSING_PROG([MAKEINFO], [makeinfo])
1fed6a87 545AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
546AC_REQUIRE([AM_PROG_INSTALL_STRIP])dnl
ca537585
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547AC_REQUIRE([AC_PROG_MKDIR_P])dnl
548# For better backward compatibility. To be removed once Automake 1.9.x
549# dies out for good. For more background, see:
9e14fd4d
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550# <https://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
551# <https://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
ca537585 552AC_SUBST([mkdir_p], ['$(MKDIR_P)'])
9e14fd4d
MP
553# We need awk for the "check" target (and possibly the TAP driver). The
554# system "awk" is bad on some platforms.
1fed6a87 555AC_REQUIRE([AC_PROG_AWK])dnl
556AC_REQUIRE([AC_PROG_MAKE_SET])dnl
557AC_REQUIRE([AM_SET_LEADING_DOT])dnl
558_AM_IF_OPTION([tar-ustar], [_AM_PROG_TAR([ustar])],
559 [_AM_IF_OPTION([tar-pax], [_AM_PROG_TAR([pax])],
560 [_AM_PROG_TAR([v7])])])
561_AM_IF_OPTION([no-dependencies],,
562[AC_PROVIDE_IFELSE([AC_PROG_CC],
ca537585
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563 [_AM_DEPENDENCIES([CC])],
564 [m4_define([AC_PROG_CC],
565 m4_defn([AC_PROG_CC])[_AM_DEPENDENCIES([CC])])])dnl
1fed6a87 566AC_PROVIDE_IFELSE([AC_PROG_CXX],
ca537585
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567 [_AM_DEPENDENCIES([CXX])],
568 [m4_define([AC_PROG_CXX],
569 m4_defn([AC_PROG_CXX])[_AM_DEPENDENCIES([CXX])])])dnl
1fed6a87 570AC_PROVIDE_IFELSE([AC_PROG_OBJC],
ca537585
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571 [_AM_DEPENDENCIES([OBJC])],
572 [m4_define([AC_PROG_OBJC],
573 m4_defn([AC_PROG_OBJC])[_AM_DEPENDENCIES([OBJC])])])dnl
574AC_PROVIDE_IFELSE([AC_PROG_OBJCXX],
575 [_AM_DEPENDENCIES([OBJCXX])],
576 [m4_define([AC_PROG_OBJCXX],
577 m4_defn([AC_PROG_OBJCXX])[_AM_DEPENDENCIES([OBJCXX])])])dnl
1fed6a87 578])
ca537585
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579AC_REQUIRE([AM_SILENT_RULES])dnl
580dnl The testsuite driver may need to know about EXEEXT, so add the
581dnl 'am__EXEEXT' conditional if _AM_COMPILER_EXEEXT was seen. This
582dnl macro is hooked onto _AC_COMPILER_EXEEXT early, see below.
1fed6a87 583AC_CONFIG_COMMANDS_PRE(dnl
584[m4_provide_if([_AM_COMPILER_EXEEXT],
585 [AM_CONDITIONAL([am__EXEEXT], [test -n "$EXEEXT"])])])dnl
1fed6a87 586
ca537585
H
587# POSIX will say in a future version that running "rm -f" with no argument
588# is OK; and we want to be able to make that assumption in our Makefile
589# recipes. So use an aggressive probe to check that the usage we want is
590# actually supported "in the wild" to an acceptable degree.
591# See automake bug#10828.
592# To make any issue more visible, cause the running configure to be aborted
593# by default if the 'rm' program in use doesn't match our expectations; the
594# user can still override this though.
595if rm -f && rm -fr && rm -rf; then : OK; else
596 cat >&2 <<'END'
597Oops!
598
599Your 'rm' program seems unable to run without file operands specified
600on the command line, even when the '-f' option is present. This is contrary
601to the behaviour of most rm programs out there, and not conforming with
602the upcoming POSIX standard: <http://austingroupbugs.net/view.php?id=542>
603
604Please tell bug-automake@gnu.org about your system, including the value
605of your $PATH and any error possibly output before this message. This
606can help us improve future automake versions.
607
608END
609 if test x"$ACCEPT_INFERIOR_RM_PROGRAM" = x"yes"; then
610 echo 'Configuration will proceed anyway, since you have set the' >&2
611 echo 'ACCEPT_INFERIOR_RM_PROGRAM variable to "yes"' >&2
612 echo >&2
613 else
614 cat >&2 <<'END'
615Aborting the configuration process, to ensure you take notice of the issue.
616
617You can download and install GNU coreutils to get an 'rm' implementation
9e14fd4d 618that behaves properly: <https://www.gnu.org/software/coreutils/>.
ca537585
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619
620If you want to complete the configuration process using your problematic
621'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM
622to "yes", and re-run configure.
623
624END
625 AC_MSG_ERROR([Your 'rm' program is bad, sorry.])
626 fi
9e14fd4d
MP
627fi
628dnl The trailing newline in this macro's definition is deliberate, for
629dnl backward compatibility and to allow trailing 'dnl'-style comments
630dnl after the AM_INIT_AUTOMAKE invocation. See automake bug#16841.
631])
ca537585
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632
633dnl Hook into '_AC_COMPILER_EXEEXT' early to learn its expansion. Do not
1fed6a87 634dnl add the conditional right here, as _AC_COMPILER_EXEEXT may be further
635dnl mangled by Autoconf and run in a shell conditional statement.
636m4_define([_AC_COMPILER_EXEEXT],
637m4_defn([_AC_COMPILER_EXEEXT])[m4_provide([_AM_COMPILER_EXEEXT])])
638
1fed6a87 639# When config.status generates a header, we must update the stamp-h file.
640# This file resides in the same directory as the config header
641# that is generated. The stamp files are numbered to have different names.
642
643# Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the
644# loop where config.status creates the headers, so we can generate
645# our stamp files there.
646AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK],
647[# Compute $1's index in $config_headers.
648_am_arg=$1
649_am_stamp_count=1
650for _am_header in $config_headers :; do
651 case $_am_header in
652 $_am_arg | $_am_arg:* )
653 break ;;
654 * )
655 _am_stamp_count=`expr $_am_stamp_count + 1` ;;
656 esac
657done
658echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
659
9e14fd4d 660# Copyright (C) 2001-2020 Free Software Foundation, Inc.
1fed6a87 661#
662# This file is free software; the Free Software Foundation
663# gives unlimited permission to copy and/or distribute it,
664# with or without modifications, as long as this notice is preserved.
665
666# AM_PROG_INSTALL_SH
667# ------------------
668# Define $install_sh.
669AC_DEFUN([AM_PROG_INSTALL_SH],
670[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
9e14fd4d 671if test x"${install_sh+set}" != xset; then
1fed6a87 672 case $am_aux_dir in
673 *\ * | *\ *)
674 install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
675 *)
676 install_sh="\${SHELL} $am_aux_dir/install-sh"
677 esac
678fi
ca537585 679AC_SUBST([install_sh])])
1fed6a87 680
9e14fd4d 681# Copyright (C) 2003-2020 Free Software Foundation, Inc.
1fed6a87 682#
683# This file is free software; the Free Software Foundation
684# gives unlimited permission to copy and/or distribute it,
685# with or without modifications, as long as this notice is preserved.
686
1fed6a87 687# Check whether the underlying file-system supports filenames
688# with a leading dot. For instance MS-DOS doesn't.
689AC_DEFUN([AM_SET_LEADING_DOT],
690[rm -rf .tst 2>/dev/null
691mkdir .tst 2>/dev/null
692if test -d .tst; then
693 am__leading_dot=.
694else
695 am__leading_dot=_
696fi
697rmdir .tst 2>/dev/null
698AC_SUBST([am__leading_dot])])
699
700# Add --enable-maintainer-mode option to configure. -*- Autoconf -*-
701# From Jim Meyering
702
9e14fd4d 703# Copyright (C) 1996-2020 Free Software Foundation, Inc.
1fed6a87 704#
705# This file is free software; the Free Software Foundation
706# gives unlimited permission to copy and/or distribute it,
707# with or without modifications, as long as this notice is preserved.
708
1fed6a87 709# AM_MAINTAINER_MODE([DEFAULT-MODE])
710# ----------------------------------
711# Control maintainer-specific portions of Makefiles.
ca537585
H
712# Default is to disable them, unless 'enable' is passed literally.
713# For symmetry, 'disable' may be passed as well. Anyway, the user
1fed6a87 714# can override the default with the --enable/--disable switch.
715AC_DEFUN([AM_MAINTAINER_MODE],
716[m4_case(m4_default([$1], [disable]),
717 [enable], [m4_define([am_maintainer_other], [disable])],
718 [disable], [m4_define([am_maintainer_other], [enable])],
719 [m4_define([am_maintainer_other], [enable])
720 m4_warn([syntax], [unexpected argument to AM@&t@_MAINTAINER_MODE: $1])])
ca537585 721AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles])
1fed6a87 722 dnl maintainer-mode's default is 'disable' unless 'enable' is passed
723 AC_ARG_ENABLE([maintainer-mode],
ca537585
H
724 [AS_HELP_STRING([--]am_maintainer_other[-maintainer-mode],
725 am_maintainer_other[ make rules and dependencies not useful
726 (and sometimes confusing) to the casual installer])],
727 [USE_MAINTAINER_MODE=$enableval],
728 [USE_MAINTAINER_MODE=]m4_if(am_maintainer_other, [enable], [no], [yes]))
1fed6a87 729 AC_MSG_RESULT([$USE_MAINTAINER_MODE])
730 AM_CONDITIONAL([MAINTAINER_MODE], [test $USE_MAINTAINER_MODE = yes])
731 MAINT=$MAINTAINER_MODE_TRUE
732 AC_SUBST([MAINT])dnl
733]
734)
735
1fed6a87 736# Check to see how 'make' treats includes. -*- Autoconf -*-
737
9e14fd4d 738# Copyright (C) 2001-2020 Free Software Foundation, Inc.
1fed6a87 739#
740# This file is free software; the Free Software Foundation
741# gives unlimited permission to copy and/or distribute it,
742# with or without modifications, as long as this notice is preserved.
743
1fed6a87 744# AM_MAKE_INCLUDE()
745# -----------------
9e14fd4d
MP
746# Check whether make has an 'include' directive that can support all
747# the idioms we need for our automatic dependency tracking code.
1fed6a87 748AC_DEFUN([AM_MAKE_INCLUDE],
9e14fd4d
MP
749[AC_MSG_CHECKING([whether ${MAKE-make} supports the include directive])
750cat > confinc.mk << 'END'
1fed6a87 751am__doit:
9e14fd4d 752 @echo this is the am__doit target >confinc.out
1fed6a87 753.PHONY: am__doit
754END
1fed6a87 755am__include="#"
756am__quote=
9e14fd4d
MP
757# BSD make does it like this.
758echo '.include "confinc.mk" # ignored' > confmf.BSD
759# Other make implementations (GNU, Solaris 10, AIX) do it like this.
760echo 'include confinc.mk # ignored' > confmf.GNU
761_am_result=no
762for s in GNU BSD; do
763 AM_RUN_LOG([${MAKE-make} -f confmf.$s && cat confinc.out])
764 AS_CASE([$?:`cat confinc.out 2>/dev/null`],
765 ['0:this is the am__doit target'],
766 [AS_CASE([$s],
767 [BSD], [am__include='.include' am__quote='"'],
768 [am__include='include' am__quote=''])])
769 if test "$am__include" != "#"; then
770 _am_result="yes ($s style)"
771 break
772 fi
773done
774rm -f confinc.* confmf.*
775AC_MSG_RESULT([${_am_result}])
776AC_SUBST([am__include])])
777AC_SUBST([am__quote])])
1fed6a87 778
779# Fake the existence of programs that GNU maintainers use. -*- Autoconf -*-
780
9e14fd4d 781# Copyright (C) 1997-2020 Free Software Foundation, Inc.
1fed6a87 782#
783# This file is free software; the Free Software Foundation
784# gives unlimited permission to copy and/or distribute it,
785# with or without modifications, as long as this notice is preserved.
786
1fed6a87 787# AM_MISSING_PROG(NAME, PROGRAM)
788# ------------------------------
789AC_DEFUN([AM_MISSING_PROG],
790[AC_REQUIRE([AM_MISSING_HAS_RUN])
791$1=${$1-"${am_missing_run}$2"}
792AC_SUBST($1)])
793
1fed6a87 794# AM_MISSING_HAS_RUN
795# ------------------
ca537585
H
796# Define MISSING if not defined so far and test if it is modern enough.
797# If it is, set am_missing_run to use it, otherwise, to nothing.
1fed6a87 798AC_DEFUN([AM_MISSING_HAS_RUN],
799[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
800AC_REQUIRE_AUX_FILE([missing])dnl
801if test x"${MISSING+set}" != xset; then
9e14fd4d 802 MISSING="\${SHELL} '$am_aux_dir/missing'"
1fed6a87 803fi
804# Use eval to expand $SHELL
ca537585
H
805if eval "$MISSING --is-lightweight"; then
806 am_missing_run="$MISSING "
1fed6a87 807else
808 am_missing_run=
ca537585 809 AC_MSG_WARN(['missing' script is too old or missing])
1fed6a87 810fi
811])
812
1fed6a87 813# Helper functions for option handling. -*- Autoconf -*-
814
9e14fd4d 815# Copyright (C) 2001-2020 Free Software Foundation, Inc.
1fed6a87 816#
817# This file is free software; the Free Software Foundation
818# gives unlimited permission to copy and/or distribute it,
819# with or without modifications, as long as this notice is preserved.
820
1fed6a87 821# _AM_MANGLE_OPTION(NAME)
822# -----------------------
823AC_DEFUN([_AM_MANGLE_OPTION],
824[[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
825
826# _AM_SET_OPTION(NAME)
ca537585 827# --------------------
1fed6a87 828# Set option NAME. Presently that only means defining a flag for this option.
829AC_DEFUN([_AM_SET_OPTION],
ca537585 830[m4_define(_AM_MANGLE_OPTION([$1]), [1])])
1fed6a87 831
832# _AM_SET_OPTIONS(OPTIONS)
ca537585 833# ------------------------
1fed6a87 834# OPTIONS is a space-separated list of Automake options.
835AC_DEFUN([_AM_SET_OPTIONS],
836[m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
837
838# _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
839# -------------------------------------------
840# Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
841AC_DEFUN([_AM_IF_OPTION],
842[m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
843
9e14fd4d 844# Copyright (C) 1999-2020 Free Software Foundation, Inc.
ca537585
H
845#
846# This file is free software; the Free Software Foundation
847# gives unlimited permission to copy and/or distribute it,
848# with or without modifications, as long as this notice is preserved.
1fed6a87 849
ca537585
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850# _AM_PROG_CC_C_O
851# ---------------
852# Like AC_PROG_CC_C_O, but changed for automake. We rewrite AC_PROG_CC
853# to automatically call this.
854AC_DEFUN([_AM_PROG_CC_C_O],
855[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
856AC_REQUIRE_AUX_FILE([compile])dnl
857AC_LANG_PUSH([C])dnl
858AC_CACHE_CHECK(
859 [whether $CC understands -c and -o together],
860 [am_cv_prog_cc_c_o],
861 [AC_LANG_CONFTEST([AC_LANG_PROGRAM([])])
862 # Make sure it works both with $CC and with simple cc.
863 # Following AC_PROG_CC_C_O, we do the test twice because some
864 # compilers refuse to overwrite an existing .o file with -o,
865 # though they will create one.
866 am_cv_prog_cc_c_o=yes
867 for am_i in 1 2; do
868 if AM_RUN_LOG([$CC -c conftest.$ac_ext -o conftest2.$ac_objext]) \
869 && test -f conftest2.$ac_objext; then
870 : OK
871 else
872 am_cv_prog_cc_c_o=no
873 break
874 fi
875 done
876 rm -f core conftest*
877 unset am_i])
878if test "$am_cv_prog_cc_c_o" != yes; then
879 # Losing compiler, so override with the script.
880 # FIXME: It is wrong to rewrite CC.
881 # But if we don't then we get into trouble of one sort or another.
882 # A longer-term fix would be to have automake use am__CC in this case,
883 # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
884 CC="$am_aux_dir/compile $CC"
885fi
886AC_LANG_POP([C])])
887
888# For backward compatibility.
889AC_DEFUN_ONCE([AM_PROG_CC_C_O], [AC_REQUIRE([AC_PROG_CC])])
890
9e14fd4d 891# Copyright (C) 2001-2020 Free Software Foundation, Inc.
1fed6a87 892#
893# This file is free software; the Free Software Foundation
894# gives unlimited permission to copy and/or distribute it,
895# with or without modifications, as long as this notice is preserved.
896
ca537585
H
897# AM_RUN_LOG(COMMAND)
898# -------------------
899# Run COMMAND, save the exit status in ac_status, and log it.
900# (This has been adapted from Autoconf's _AC_RUN_LOG macro.)
901AC_DEFUN([AM_RUN_LOG],
902[{ echo "$as_me:$LINENO: $1" >&AS_MESSAGE_LOG_FD
903 ($1) >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD
904 ac_status=$?
905 echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
906 (exit $ac_status); }])
907
908# Check to make sure that the build environment is sane. -*- Autoconf -*-
909
9e14fd4d 910# Copyright (C) 1996-2020 Free Software Foundation, Inc.
ca537585
H
911#
912# This file is free software; the Free Software Foundation
913# gives unlimited permission to copy and/or distribute it,
914# with or without modifications, as long as this notice is preserved.
1fed6a87 915
916# AM_SANITY_CHECK
917# ---------------
918AC_DEFUN([AM_SANITY_CHECK],
919[AC_MSG_CHECKING([whether build environment is sane])
1fed6a87 920# Reject unsafe characters in $srcdir or the absolute working directory
921# name. Accept space and tab only in the latter.
922am_lf='
923'
924case `pwd` in
925 *[[\\\"\#\$\&\'\`$am_lf]]*)
926 AC_MSG_ERROR([unsafe absolute working directory name]);;
927esac
928case $srcdir in
929 *[[\\\"\#\$\&\'\`$am_lf\ \ ]]*)
ca537585 930 AC_MSG_ERROR([unsafe srcdir value: '$srcdir']);;
1fed6a87 931esac
932
ca537585 933# Do 'set' in a subshell so we don't clobber the current shell's
1fed6a87 934# arguments. Must try -L first in case configure is actually a
935# symlink; some systems play weird games with the mod time of symlinks
936# (eg FreeBSD returns the mod time of the symlink's containing
937# directory).
938if (
ca537585
H
939 am_has_slept=no
940 for am_try in 1 2; do
941 echo "timestamp, slept: $am_has_slept" > conftest.file
942 set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
943 if test "$[*]" = "X"; then
944 # -L didn't work.
945 set X `ls -t "$srcdir/configure" conftest.file`
946 fi
947 if test "$[*]" != "X $srcdir/configure conftest.file" \
948 && test "$[*]" != "X conftest.file $srcdir/configure"; then
949
950 # If neither matched, then we have a broken ls. This can happen
951 # if, for instance, CONFIG_SHELL is bash and it inherits a
952 # broken ls alias from the environment. This has actually
953 # happened. Such a system could not be considered "sane".
954 AC_MSG_ERROR([ls -t appears to fail. Make sure there is not a broken
955 alias in your environment])
956 fi
957 if test "$[2]" = conftest.file || test $am_try -eq 2; then
958 break
959 fi
960 # Just in case.
961 sleep 1
962 am_has_slept=yes
963 done
1fed6a87 964 test "$[2]" = conftest.file
965 )
966then
967 # Ok.
968 :
969else
970 AC_MSG_ERROR([newly created file is older than distributed files!
971Check your system clock])
972fi
ca537585
H
973AC_MSG_RESULT([yes])
974# If we didn't sleep, we still need to ensure time stamps of config.status and
975# generated files are strictly newer.
976am_sleep_pid=
977if grep 'slept: no' conftest.file >/dev/null 2>&1; then
978 ( sleep 1 ) &
979 am_sleep_pid=$!
980fi
981AC_CONFIG_COMMANDS_PRE(
982 [AC_MSG_CHECKING([that generated files are newer than configure])
983 if test -n "$am_sleep_pid"; then
984 # Hide warnings about reused PIDs.
985 wait $am_sleep_pid 2>/dev/null
986 fi
987 AC_MSG_RESULT([done])])
988rm -f conftest.file
989])
1fed6a87 990
9e14fd4d 991# Copyright (C) 2009-2020 Free Software Foundation, Inc.
ca537585
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992#
993# This file is free software; the Free Software Foundation
994# gives unlimited permission to copy and/or distribute it,
995# with or without modifications, as long as this notice is preserved.
996
997# AM_SILENT_RULES([DEFAULT])
998# --------------------------
999# Enable less verbose build rules; with the default set to DEFAULT
1000# ("yes" being less verbose, "no" or empty being verbose).
1001AC_DEFUN([AM_SILENT_RULES],
1002[AC_ARG_ENABLE([silent-rules], [dnl
1003AS_HELP_STRING(
1004 [--enable-silent-rules],
1005 [less verbose build output (undo: "make V=1")])
1006AS_HELP_STRING(
1007 [--disable-silent-rules],
1008 [verbose build output (undo: "make V=0")])dnl
1009])
1010case $enable_silent_rules in @%:@ (((
1011 yes) AM_DEFAULT_VERBOSITY=0;;
1012 no) AM_DEFAULT_VERBOSITY=1;;
1013 *) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);;
1014esac
1015dnl
1016dnl A few 'make' implementations (e.g., NonStop OS and NextStep)
1017dnl do not support nested variable expansions.
1018dnl See automake bug#9928 and bug#10237.
1019am_make=${MAKE-make}
1020AC_CACHE_CHECK([whether $am_make supports nested variables],
1021 [am_cv_make_support_nested_variables],
1022 [if AS_ECHO([['TRUE=$(BAR$(V))
1023BAR0=false
1024BAR1=true
1025V=1
1026am__doit:
1027 @$(TRUE)
1028.PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then
1029 am_cv_make_support_nested_variables=yes
1030else
1031 am_cv_make_support_nested_variables=no
1032fi])
1033if test $am_cv_make_support_nested_variables = yes; then
1034 dnl Using '$V' instead of '$(V)' breaks IRIX make.
1035 AM_V='$(V)'
1036 AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
1037else
1038 AM_V=$AM_DEFAULT_VERBOSITY
1039 AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
1040fi
1041AC_SUBST([AM_V])dnl
1042AM_SUBST_NOTMAKE([AM_V])dnl
1043AC_SUBST([AM_DEFAULT_V])dnl
1044AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl
1045AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
1046AM_BACKSLASH='\'
1047AC_SUBST([AM_BACKSLASH])dnl
1048_AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
1049])
1050
9e14fd4d 1051# Copyright (C) 2001-2020 Free Software Foundation, Inc.
1fed6a87 1052#
1053# This file is free software; the Free Software Foundation
1054# gives unlimited permission to copy and/or distribute it,
1055# with or without modifications, as long as this notice is preserved.
1056
1057# AM_PROG_INSTALL_STRIP
1058# ---------------------
ca537585 1059# One issue with vendor 'install' (even GNU) is that you can't
1fed6a87 1060# specify the program used to strip binaries. This is especially
1061# annoying in cross-compiling environments, where the build's strip
1062# is unlikely to handle the host's binaries.
1063# Fortunately install-sh will honor a STRIPPROG variable, so we
ca537585 1064# always use install-sh in "make install-strip", and initialize
1fed6a87 1065# STRIPPROG with the value of the STRIP variable (set by the user).
1066AC_DEFUN([AM_PROG_INSTALL_STRIP],
1067[AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
ca537585
H
1068# Installed binaries are usually stripped using 'strip' when the user
1069# run "make install-strip". However 'strip' might not be the right
1fed6a87 1070# tool to use in cross-compilation environments, therefore Automake
ca537585
H
1071# will honor the 'STRIP' environment variable to overrule this program.
1072dnl Don't test for $cross_compiling = yes, because it might be 'maybe'.
1fed6a87 1073if test "$cross_compiling" != no; then
1074 AC_CHECK_TOOL([STRIP], [strip], :)
1075fi
1076INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
1077AC_SUBST([INSTALL_STRIP_PROGRAM])])
1078
9e14fd4d 1079# Copyright (C) 2006-2020 Free Software Foundation, Inc.
1fed6a87 1080#
1081# This file is free software; the Free Software Foundation
1082# gives unlimited permission to copy and/or distribute it,
1083# with or without modifications, as long as this notice is preserved.
1084
1fed6a87 1085# _AM_SUBST_NOTMAKE(VARIABLE)
1086# ---------------------------
1087# Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
1088# This macro is traced by Automake.
1089AC_DEFUN([_AM_SUBST_NOTMAKE])
1090
1091# AM_SUBST_NOTMAKE(VARIABLE)
ca537585 1092# --------------------------
1fed6a87 1093# Public sister of _AM_SUBST_NOTMAKE.
1094AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
1095
1096# Check how to create a tarball. -*- Autoconf -*-
1097
9e14fd4d 1098# Copyright (C) 2004-2020 Free Software Foundation, Inc.
1fed6a87 1099#
1100# This file is free software; the Free Software Foundation
1101# gives unlimited permission to copy and/or distribute it,
1102# with or without modifications, as long as this notice is preserved.
1103
1fed6a87 1104# _AM_PROG_TAR(FORMAT)
1105# --------------------
1106# Check how to create a tarball in format FORMAT.
ca537585 1107# FORMAT should be one of 'v7', 'ustar', or 'pax'.
1fed6a87 1108#
1109# Substitute a variable $(am__tar) that is a command
1110# writing to stdout a FORMAT-tarball containing the directory
1111# $tardir.
1112# tardir=directory && $(am__tar) > result.tar
1113#
1114# Substitute a variable $(am__untar) that extract such
1115# a tarball read from stdin.
1116# $(am__untar) < result.tar
ca537585 1117#
1fed6a87 1118AC_DEFUN([_AM_PROG_TAR],
ca537585
H
1119[# Always define AMTAR for backward compatibility. Yes, it's still used
1120# in the wild :-( We should find a proper way to deprecate it ...
1121AC_SUBST([AMTAR], ['$${TAR-tar}'])
1122
1123# We'll loop over all known methods to create a tar archive until one works.
1fed6a87 1124_am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
1fed6a87 1125
ca537585
H
1126m4_if([$1], [v7],
1127 [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],
1128
1129 [m4_case([$1],
1130 [ustar],
1131 [# The POSIX 1988 'ustar' format is defined with fixed-size fields.
1132 # There is notably a 21 bits limit for the UID and the GID. In fact,
1133 # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343
1134 # and bug#13588).
1135 am_max_uid=2097151 # 2^21 - 1
1136 am_max_gid=$am_max_uid
1137 # The $UID and $GID variables are not portable, so we need to resort
1138 # to the POSIX-mandated id(1) utility. Errors in the 'id' calls
1139 # below are definitely unexpected, so allow the users to see them
1140 # (that is, avoid stderr redirection).
1141 am_uid=`id -u || echo unknown`
1142 am_gid=`id -g || echo unknown`
1143 AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format])
1144 if test $am_uid -le $am_max_uid; then
1145 AC_MSG_RESULT([yes])
1146 else
1147 AC_MSG_RESULT([no])
1148 _am_tools=none
1149 fi
1150 AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format])
1151 if test $am_gid -le $am_max_gid; then
1152 AC_MSG_RESULT([yes])
1153 else
1154 AC_MSG_RESULT([no])
1155 _am_tools=none
1156 fi],
1fed6a87 1157
ca537585
H
1158 [pax],
1159 [],
1160
1161 [m4_fatal([Unknown tar format])])
1162
1163 AC_MSG_CHECKING([how to create a $1 tar archive])
1164
1165 # Go ahead even if we have the value already cached. We do so because we
1166 # need to set the values for the 'am__tar' and 'am__untar' variables.
1167 _am_tools=${am_cv_prog_tar_$1-$_am_tools}
1168
1169 for _am_tool in $_am_tools; do
1170 case $_am_tool in
1171 gnutar)
1172 for _am_tar in tar gnutar gtar; do
1173 AM_RUN_LOG([$_am_tar --version]) && break
1174 done
1175 am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
1176 am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
1177 am__untar="$_am_tar -xf -"
1178 ;;
1179 plaintar)
1180 # Must skip GNU tar: if it does not support --format= it doesn't create
1181 # ustar tarball either.
1182 (tar --version) >/dev/null 2>&1 && continue
1183 am__tar='tar chf - "$$tardir"'
1184 am__tar_='tar chf - "$tardir"'
1185 am__untar='tar xf -'
1186 ;;
1187 pax)
1188 am__tar='pax -L -x $1 -w "$$tardir"'
1189 am__tar_='pax -L -x $1 -w "$tardir"'
1190 am__untar='pax -r'
1191 ;;
1192 cpio)
1193 am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
1194 am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
1195 am__untar='cpio -i -H $1 -d'
1196 ;;
1197 none)
1198 am__tar=false
1199 am__tar_=false
1200 am__untar=false
1201 ;;
1202 esac
1203
1204 # If the value was cached, stop now. We just wanted to have am__tar
1205 # and am__untar set.
1206 test -n "${am_cv_prog_tar_$1}" && break
1207
1208 # tar/untar a dummy directory, and stop if the command works.
1209 rm -rf conftest.dir
1210 mkdir conftest.dir
1211 echo GrepMe > conftest.dir/file
1212 AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
1213 rm -rf conftest.dir
1214 if test -s conftest.tar; then
1215 AM_RUN_LOG([$am__untar <conftest.tar])
1216 AM_RUN_LOG([cat conftest.dir/file])
1217 grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
1218 fi
1219 done
1fed6a87 1220 rm -rf conftest.dir
1fed6a87 1221
ca537585
H
1222 AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
1223 AC_MSG_RESULT([$am_cv_prog_tar_$1])])
1224
1fed6a87 1225AC_SUBST([am__tar])
1226AC_SUBST([am__untar])
1227]) # _AM_PROG_TAR
1228
9e14fd4d
MP
1229m4_include([m4/ax_boost_base.m4])
1230m4_include([m4/ax_boost_thread.m4])
1231m4_include([m4/ax_cxx_compile_stdcxx.m4])
1232m4_include([m4/ax_cxx_compile_stdcxx_11.m4])
1233m4_include([m4/libtool.m4])
1234m4_include([m4/ltargz.m4])
1235m4_include([m4/ltdl.m4])
1236m4_include([m4/ltoptions.m4])
1237m4_include([m4/ltsugar.m4])
1238m4_include([m4/ltversion.m4])
1239m4_include([m4/lt~obsolete.m4])