xref: /freebsd/contrib/ntp/sntp/libevent/aclocal.m4 (revision c7d813a93eeb447470734c9bc0c140d90a54c271)
1# generated automatically by aclocal 1.15 -*- Autoconf -*-
2
3# Copyright (C) 1996-2014 Free Software Foundation, Inc.
4
5# This file is free software; the Free Software Foundation
6# gives unlimited permission to copy and/or distribute it,
7# with or without modifications, as long as this notice is preserved.
8
9# This program is distributed in the hope that it will be useful,
10# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
11# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
12# PARTICULAR PURPOSE.
13
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23# serial 9  -*- Autoconf -*-
24# Enable extensions on systems that normally disable them.
25
26# Copyright (C) 2003, 2006-2010 Free Software Foundation, Inc.
27# This file is free software; the Free Software Foundation
28# gives unlimited permission to copy and/or distribute it,
29# with or without modifications, as long as this notice is preserved.
30
31# This definition of AC_USE_SYSTEM_EXTENSIONS is stolen from CVS
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51# AC_USE_SYSTEM_EXTENSIONS
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104/* Enable general extensions on Solaris.  */
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119  AC_DEFINE([_ALL_SOURCE])
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122  AC_DEFINE([_TANDEM_SOURCE])
123])# AC_USE_SYSTEM_EXTENSIONS
124
125# gl_USE_SYSTEM_EXTENSIONS
126# ------------------------
127# Enable extensions on systems that normally disable them,
128# typically due to standards-conformance issues.
129AC_DEFUN_ONCE([gl_USE_SYSTEM_EXTENSIONS],
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131  dnl Require this macro before AC_USE_SYSTEM_EXTENSIONS.
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139  AC_REQUIRE([AC_USE_SYSTEM_EXTENSIONS])
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141
142# Copyright (C) 2002-2014 Free Software Foundation, Inc.
143#
144# This file is free software; the Free Software Foundation
145# gives unlimited permission to copy and/or distribute it,
146# with or without modifications, as long as this notice is preserved.
147
148# AM_AUTOMAKE_VERSION(VERSION)
149# ----------------------------
150# Automake X.Y traces this macro to ensure aclocal.m4 has been
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153AC_DEFUN([AM_AUTOMAKE_VERSION],
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178# AM_AUX_DIR_EXPAND                                         -*- Autoconf -*-
179
180# Copyright (C) 2001-2014 Free Software Foundation, Inc.
181#
182# This file is free software; the Free Software Foundation
183# gives unlimited permission to copy and/or distribute it,
184# with or without modifications, as long as this notice is preserved.
185
186# For projects using AC_CONFIG_AUX_DIR([foo]), Autoconf sets
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230# AM_CONDITIONAL                                            -*- Autoconf -*-
231
232# Copyright (C) 1997-2014 Free Software Foundation, Inc.
233#
234# This file is free software; the Free Software Foundation
235# gives unlimited permission to copy and/or distribute it,
236# with or without modifications, as long as this notice is preserved.
237
238# AM_CONDITIONAL(NAME, SHELL-CONDITION)
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241AC_DEFUN([AM_CONDITIONAL],
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260Usually this means the macro was only invoked conditionally.]])
261fi])])
262
263# Copyright (C) 1999-2014 Free Software Foundation, Inc.
264#
265# This file is free software; the Free Software Foundation
266# gives unlimited permission to copy and/or distribute it,
267# with or without modifications, as long as this notice is preserved.
268
269
270# There are a few dirty hacks below to avoid letting 'AC_PROG_CC' be
271# written in clear, in which case automake, when reading aclocal.m4,
272# will think it sees a *use*, and therefore will trigger all it's
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276
277# _AM_DEPENDENCIES(NAME)
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390       grep $am__obj sub/conftest.Po > /dev/null 2>&1 &&
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395      # When given -MP, icc 7.0 and 7.1 complain thusly:
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397      # The diagnosis changed in icc 8.0:
398      #   icc: Command line remark: option '-MP' not supported
399      if (grep 'ignoring option' conftest.err ||
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401        am_cv_$1_dependencies_compiler_type=$depmode
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405  done
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407  cd ..
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418
419
420# AM_SET_DEPDIR
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429
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449_AM_SUBST_NOTMAKE([am__nodep])dnl
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451
452# Generate code to set up dependency tracking.              -*- Autoconf -*-
453
454# Copyright (C) 1999-2014 Free Software Foundation, Inc.
455#
456# This file is free software; the Free Software Foundation
457# gives unlimited permission to copy and/or distribute it,
458# with or without modifications, as long as this notice is preserved.
459
460
461# _AM_OUTPUT_DEPENDENCY_COMMANDS
462# ------------------------------
463AC_DEFUN([_AM_OUTPUT_DEPENDENCY_COMMANDS],
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465  # Older Autoconf quotes --file arguments for eval, but not when files
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494    test -z "$am__include" && continue
495    am__quote=`sed -n 's/^am__quote = //p' < "$mf"`
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498    # simplest approach to changing $(DEPDIR) to its actual value in the
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512])# _AM_OUTPUT_DEPENDENCY_COMMANDS
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514
515# AM_OUTPUT_DEPENDENCY_COMMANDS
516# -----------------------------
517# This macro should only be invoked once -- use via AC_REQUIRE.
518#
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527
528# Do all the work for Automake.                             -*- Autoconf -*-
529
530# Copyright (C) 1996-2014 Free Software Foundation, Inc.
531#
532# This file is free software; the Free Software Foundation
533# gives unlimited permission to copy and/or distribute it,
534# with or without modifications, as long as this notice is preserved.
535
536# This macro actually does too much.  Some checks are only needed if
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538
539dnl Redefine AC_PROG_CC to automatically invoke _AM_PROG_CC_C_O.
540m4_define([AC_PROG_CC],
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543])
544
545# AM_INIT_AUTOMAKE(PACKAGE, VERSION, [NO-DEFINE])
546# AM_INIT_AUTOMAKE([OPTIONS])
547# -----------------------------------------------
548# The call with PACKAGE and VERSION arguments is the old style
549# call (pre autoconf-2.50), which is being phased out.  PACKAGE
550# and VERSION should now be passed to AC_INIT and removed from
551# the call to AM_INIT_AUTOMAKE.
552# We support both call styles for the transition.  After
553# the next Automake release, Autoconf can make the AC_INIT
554# arguments mandatory, and then we can depend on a new Autoconf
555# release and drop the old call support.
556AC_DEFUN([AM_INIT_AUTOMAKE],
557[AC_PREREQ([2.65])dnl
558dnl Autoconf wants to disallow AM_ names.  We explicitly allow
559dnl the ones we care about.
560m4_pattern_allow([^AM_[A-Z]+FLAGS$])dnl
561AC_REQUIRE([AM_SET_CURRENT_AUTOMAKE_VERSION])dnl
562AC_REQUIRE([AC_PROG_INSTALL])dnl
563if test "`cd $srcdir && pwd`" != "`pwd`"; then
564  # Use -I$(srcdir) only when $(srcdir) != ., so that make's output
565  # is not polluted with repeated "-I."
566  AC_SUBST([am__isrc], [' -I$(srcdir)'])_AM_SUBST_NOTMAKE([am__isrc])dnl
567  # test to see if srcdir already configured
568  if test -f $srcdir/config.status; then
569    AC_MSG_ERROR([source directory already configured; run "make distclean" there first])
570  fi
571fi
572
573# test whether we have cygpath
574if test -z "$CYGPATH_W"; then
575  if (cygpath --version) >/dev/null 2>/dev/null; then
576    CYGPATH_W='cygpath -w'
577  else
578    CYGPATH_W=echo
579  fi
580fi
581AC_SUBST([CYGPATH_W])
582
583# Define the identity of the package.
584dnl Distinguish between old-style and new-style calls.
585m4_ifval([$2],
586[AC_DIAGNOSE([obsolete],
587             [$0: two- and three-arguments forms are deprecated.])
588m4_ifval([$3], [_AM_SET_OPTION([no-define])])dnl
589 AC_SUBST([PACKAGE], [$1])dnl
590 AC_SUBST([VERSION], [$2])],
591[_AM_SET_OPTIONS([$1])dnl
592dnl Diagnose old-style AC_INIT with new-style AM_AUTOMAKE_INIT.
593m4_if(
594  m4_ifdef([AC_PACKAGE_NAME], [ok]):m4_ifdef([AC_PACKAGE_VERSION], [ok]),
595  [ok:ok],,
596  [m4_fatal([AC_INIT should be called with package and version arguments])])dnl
597 AC_SUBST([PACKAGE], ['AC_PACKAGE_TARNAME'])dnl
598 AC_SUBST([VERSION], ['AC_PACKAGE_VERSION'])])dnl
599
600_AM_IF_OPTION([no-define],,
601[AC_DEFINE_UNQUOTED([PACKAGE], ["$PACKAGE"], [Name of package])
602 AC_DEFINE_UNQUOTED([VERSION], ["$VERSION"], [Version number of package])])dnl
603
604# Some tools Automake needs.
605AC_REQUIRE([AM_SANITY_CHECK])dnl
606AC_REQUIRE([AC_ARG_PROGRAM])dnl
607AM_MISSING_PROG([ACLOCAL], [aclocal-${am__api_version}])
608AM_MISSING_PROG([AUTOCONF], [autoconf])
609AM_MISSING_PROG([AUTOMAKE], [automake-${am__api_version}])
610AM_MISSING_PROG([AUTOHEADER], [autoheader])
611AM_MISSING_PROG([MAKEINFO], [makeinfo])
612AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
613AC_REQUIRE([AM_PROG_INSTALL_STRIP])dnl
614AC_REQUIRE([AC_PROG_MKDIR_P])dnl
615# For better backward compatibility.  To be removed once Automake 1.9.x
616# dies out for good.  For more background, see:
617# <http://lists.gnu.org/archive/html/automake/2012-07/msg00001.html>
618# <http://lists.gnu.org/archive/html/automake/2012-07/msg00014.html>
619AC_SUBST([mkdir_p], ['$(MKDIR_P)'])
620# We need awk for the "check" target (and possibly the TAP driver).  The
621# system "awk" is bad on some platforms.
622AC_REQUIRE([AC_PROG_AWK])dnl
623AC_REQUIRE([AC_PROG_MAKE_SET])dnl
624AC_REQUIRE([AM_SET_LEADING_DOT])dnl
625_AM_IF_OPTION([tar-ustar], [_AM_PROG_TAR([ustar])],
626	      [_AM_IF_OPTION([tar-pax], [_AM_PROG_TAR([pax])],
627			     [_AM_PROG_TAR([v7])])])
628_AM_IF_OPTION([no-dependencies],,
629[AC_PROVIDE_IFELSE([AC_PROG_CC],
630		  [_AM_DEPENDENCIES([CC])],
631		  [m4_define([AC_PROG_CC],
632			     m4_defn([AC_PROG_CC])[_AM_DEPENDENCIES([CC])])])dnl
633AC_PROVIDE_IFELSE([AC_PROG_CXX],
634		  [_AM_DEPENDENCIES([CXX])],
635		  [m4_define([AC_PROG_CXX],
636			     m4_defn([AC_PROG_CXX])[_AM_DEPENDENCIES([CXX])])])dnl
637AC_PROVIDE_IFELSE([AC_PROG_OBJC],
638		  [_AM_DEPENDENCIES([OBJC])],
639		  [m4_define([AC_PROG_OBJC],
640			     m4_defn([AC_PROG_OBJC])[_AM_DEPENDENCIES([OBJC])])])dnl
641AC_PROVIDE_IFELSE([AC_PROG_OBJCXX],
642		  [_AM_DEPENDENCIES([OBJCXX])],
643		  [m4_define([AC_PROG_OBJCXX],
644			     m4_defn([AC_PROG_OBJCXX])[_AM_DEPENDENCIES([OBJCXX])])])dnl
645])
646AC_REQUIRE([AM_SILENT_RULES])dnl
647dnl The testsuite driver may need to know about EXEEXT, so add the
648dnl 'am__EXEEXT' conditional if _AM_COMPILER_EXEEXT was seen.  This
649dnl macro is hooked onto _AC_COMPILER_EXEEXT early, see below.
650AC_CONFIG_COMMANDS_PRE(dnl
651[m4_provide_if([_AM_COMPILER_EXEEXT],
652  [AM_CONDITIONAL([am__EXEEXT], [test -n "$EXEEXT"])])])dnl
653
654# POSIX will say in a future version that running "rm -f" with no argument
655# is OK; and we want to be able to make that assumption in our Makefile
656# recipes.  So use an aggressive probe to check that the usage we want is
657# actually supported "in the wild" to an acceptable degree.
658# See automake bug#10828.
659# To make any issue more visible, cause the running configure to be aborted
660# by default if the 'rm' program in use doesn't match our expectations; the
661# user can still override this though.
662if rm -f && rm -fr && rm -rf; then : OK; else
663  cat >&2 <<'END'
664Oops!
665
666Your 'rm' program seems unable to run without file operands specified
667on the command line, even when the '-f' option is present.  This is contrary
668to the behaviour of most rm programs out there, and not conforming with
669the upcoming POSIX standard: <http://austingroupbugs.net/view.php?id=542>
670
671Please tell bug-automake@gnu.org about your system, including the value
672of your $PATH and any error possibly output before this message.  This
673can help us improve future automake versions.
674
675END
676  if test x"$ACCEPT_INFERIOR_RM_PROGRAM" = x"yes"; then
677    echo 'Configuration will proceed anyway, since you have set the' >&2
678    echo 'ACCEPT_INFERIOR_RM_PROGRAM variable to "yes"' >&2
679    echo >&2
680  else
681    cat >&2 <<'END'
682Aborting the configuration process, to ensure you take notice of the issue.
683
684You can download and install GNU coreutils to get an 'rm' implementation
685that behaves properly: <http://www.gnu.org/software/coreutils/>.
686
687If you want to complete the configuration process using your problematic
688'rm' anyway, export the environment variable ACCEPT_INFERIOR_RM_PROGRAM
689to "yes", and re-run configure.
690
691END
692    AC_MSG_ERROR([Your 'rm' program is bad, sorry.])
693  fi
694fi
695dnl The trailing newline in this macro's definition is deliberate, for
696dnl backward compatibility and to allow trailing 'dnl'-style comments
697dnl after the AM_INIT_AUTOMAKE invocation. See automake bug#16841.
698])
699
700dnl Hook into '_AC_COMPILER_EXEEXT' early to learn its expansion.  Do not
701dnl add the conditional right here, as _AC_COMPILER_EXEEXT may be further
702dnl mangled by Autoconf and run in a shell conditional statement.
703m4_define([_AC_COMPILER_EXEEXT],
704m4_defn([_AC_COMPILER_EXEEXT])[m4_provide([_AM_COMPILER_EXEEXT])])
705
706# When config.status generates a header, we must update the stamp-h file.
707# This file resides in the same directory as the config header
708# that is generated.  The stamp files are numbered to have different names.
709
710# Autoconf calls _AC_AM_CONFIG_HEADER_HOOK (when defined) in the
711# loop where config.status creates the headers, so we can generate
712# our stamp files there.
713AC_DEFUN([_AC_AM_CONFIG_HEADER_HOOK],
714[# Compute $1's index in $config_headers.
715_am_arg=$1
716_am_stamp_count=1
717for _am_header in $config_headers :; do
718  case $_am_header in
719    $_am_arg | $_am_arg:* )
720      break ;;
721    * )
722      _am_stamp_count=`expr $_am_stamp_count + 1` ;;
723  esac
724done
725echo "timestamp for $_am_arg" >`AS_DIRNAME(["$_am_arg"])`/stamp-h[]$_am_stamp_count])
726
727# Copyright (C) 2001-2014 Free Software Foundation, Inc.
728#
729# This file is free software; the Free Software Foundation
730# gives unlimited permission to copy and/or distribute it,
731# with or without modifications, as long as this notice is preserved.
732
733# AM_PROG_INSTALL_SH
734# ------------------
735# Define $install_sh.
736AC_DEFUN([AM_PROG_INSTALL_SH],
737[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
738if test x"${install_sh+set}" != xset; then
739  case $am_aux_dir in
740  *\ * | *\	*)
741    install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
742  *)
743    install_sh="\${SHELL} $am_aux_dir/install-sh"
744  esac
745fi
746AC_SUBST([install_sh])])
747
748# Copyright (C) 2003-2014 Free Software Foundation, Inc.
749#
750# This file is free software; the Free Software Foundation
751# gives unlimited permission to copy and/or distribute it,
752# with or without modifications, as long as this notice is preserved.
753
754# Check whether the underlying file-system supports filenames
755# with a leading dot.  For instance MS-DOS doesn't.
756AC_DEFUN([AM_SET_LEADING_DOT],
757[rm -rf .tst 2>/dev/null
758mkdir .tst 2>/dev/null
759if test -d .tst; then
760  am__leading_dot=.
761else
762  am__leading_dot=_
763fi
764rmdir .tst 2>/dev/null
765AC_SUBST([am__leading_dot])])
766
767# Check to see how 'make' treats includes.	            -*- Autoconf -*-
768
769# Copyright (C) 2001-2014 Free Software Foundation, Inc.
770#
771# This file is free software; the Free Software Foundation
772# gives unlimited permission to copy and/or distribute it,
773# with or without modifications, as long as this notice is preserved.
774
775# AM_MAKE_INCLUDE()
776# -----------------
777# Check to see how make treats includes.
778AC_DEFUN([AM_MAKE_INCLUDE],
779[am_make=${MAKE-make}
780cat > confinc << 'END'
781am__doit:
782	@echo this is the am__doit target
783.PHONY: am__doit
784END
785# If we don't find an include directive, just comment out the code.
786AC_MSG_CHECKING([for style of include used by $am_make])
787am__include="#"
788am__quote=
789_am_result=none
790# First try GNU make style include.
791echo "include confinc" > confmf
792# Ignore all kinds of additional output from 'make'.
793case `$am_make -s -f confmf 2> /dev/null` in #(
794*the\ am__doit\ target*)
795  am__include=include
796  am__quote=
797  _am_result=GNU
798  ;;
799esac
800# Now try BSD make style include.
801if test "$am__include" = "#"; then
802   echo '.include "confinc"' > confmf
803   case `$am_make -s -f confmf 2> /dev/null` in #(
804   *the\ am__doit\ target*)
805     am__include=.include
806     am__quote="\""
807     _am_result=BSD
808     ;;
809   esac
810fi
811AC_SUBST([am__include])
812AC_SUBST([am__quote])
813AC_MSG_RESULT([$_am_result])
814rm -f confinc confmf
815])
816
817# Fake the existence of programs that GNU maintainers use.  -*- Autoconf -*-
818
819# Copyright (C) 1997-2014 Free Software Foundation, Inc.
820#
821# This file is free software; the Free Software Foundation
822# gives unlimited permission to copy and/or distribute it,
823# with or without modifications, as long as this notice is preserved.
824
825# AM_MISSING_PROG(NAME, PROGRAM)
826# ------------------------------
827AC_DEFUN([AM_MISSING_PROG],
828[AC_REQUIRE([AM_MISSING_HAS_RUN])
829$1=${$1-"${am_missing_run}$2"}
830AC_SUBST($1)])
831
832# AM_MISSING_HAS_RUN
833# ------------------
834# Define MISSING if not defined so far and test if it is modern enough.
835# If it is, set am_missing_run to use it, otherwise, to nothing.
836AC_DEFUN([AM_MISSING_HAS_RUN],
837[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
838AC_REQUIRE_AUX_FILE([missing])dnl
839if test x"${MISSING+set}" != xset; then
840  case $am_aux_dir in
841  *\ * | *\	*)
842    MISSING="\${SHELL} \"$am_aux_dir/missing\"" ;;
843  *)
844    MISSING="\${SHELL} $am_aux_dir/missing" ;;
845  esac
846fi
847# Use eval to expand $SHELL
848if eval "$MISSING --is-lightweight"; then
849  am_missing_run="$MISSING "
850else
851  am_missing_run=
852  AC_MSG_WARN(['missing' script is too old or missing])
853fi
854])
855
856# Helper functions for option handling.                     -*- Autoconf -*-
857
858# Copyright (C) 2001-2014 Free Software Foundation, Inc.
859#
860# This file is free software; the Free Software Foundation
861# gives unlimited permission to copy and/or distribute it,
862# with or without modifications, as long as this notice is preserved.
863
864# _AM_MANGLE_OPTION(NAME)
865# -----------------------
866AC_DEFUN([_AM_MANGLE_OPTION],
867[[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
868
869# _AM_SET_OPTION(NAME)
870# --------------------
871# Set option NAME.  Presently that only means defining a flag for this option.
872AC_DEFUN([_AM_SET_OPTION],
873[m4_define(_AM_MANGLE_OPTION([$1]), [1])])
874
875# _AM_SET_OPTIONS(OPTIONS)
876# ------------------------
877# OPTIONS is a space-separated list of Automake options.
878AC_DEFUN([_AM_SET_OPTIONS],
879[m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
880
881# _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
882# -------------------------------------------
883# Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
884AC_DEFUN([_AM_IF_OPTION],
885[m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
886
887# Copyright (C) 1999-2014 Free Software Foundation, Inc.
888#
889# This file is free software; the Free Software Foundation
890# gives unlimited permission to copy and/or distribute it,
891# with or without modifications, as long as this notice is preserved.
892
893# _AM_PROG_CC_C_O
894# ---------------
895# Like AC_PROG_CC_C_O, but changed for automake.  We rewrite AC_PROG_CC
896# to automatically call this.
897AC_DEFUN([_AM_PROG_CC_C_O],
898[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
899AC_REQUIRE_AUX_FILE([compile])dnl
900AC_LANG_PUSH([C])dnl
901AC_CACHE_CHECK(
902  [whether $CC understands -c and -o together],
903  [am_cv_prog_cc_c_o],
904  [AC_LANG_CONFTEST([AC_LANG_PROGRAM([])])
905  # Make sure it works both with $CC and with simple cc.
906  # Following AC_PROG_CC_C_O, we do the test twice because some
907  # compilers refuse to overwrite an existing .o file with -o,
908  # though they will create one.
909  am_cv_prog_cc_c_o=yes
910  for am_i in 1 2; do
911    if AM_RUN_LOG([$CC -c conftest.$ac_ext -o conftest2.$ac_objext]) \
912         && test -f conftest2.$ac_objext; then
913      : OK
914    else
915      am_cv_prog_cc_c_o=no
916      break
917    fi
918  done
919  rm -f core conftest*
920  unset am_i])
921if test "$am_cv_prog_cc_c_o" != yes; then
922   # Losing compiler, so override with the script.
923   # FIXME: It is wrong to rewrite CC.
924   # But if we don't then we get into trouble of one sort or another.
925   # A longer-term fix would be to have automake use am__CC in this case,
926   # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
927   CC="$am_aux_dir/compile $CC"
928fi
929AC_LANG_POP([C])])
930
931# For backward compatibility.
932AC_DEFUN_ONCE([AM_PROG_CC_C_O], [AC_REQUIRE([AC_PROG_CC])])
933
934# Copyright (C) 2001-2014 Free Software Foundation, Inc.
935#
936# This file is free software; the Free Software Foundation
937# gives unlimited permission to copy and/or distribute it,
938# with or without modifications, as long as this notice is preserved.
939
940# AM_RUN_LOG(COMMAND)
941# -------------------
942# Run COMMAND, save the exit status in ac_status, and log it.
943# (This has been adapted from Autoconf's _AC_RUN_LOG macro.)
944AC_DEFUN([AM_RUN_LOG],
945[{ echo "$as_me:$LINENO: $1" >&AS_MESSAGE_LOG_FD
946   ($1) >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD
947   ac_status=$?
948   echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
949   (exit $ac_status); }])
950
951# Check to make sure that the build environment is sane.    -*- Autoconf -*-
952
953# Copyright (C) 1996-2014 Free Software Foundation, Inc.
954#
955# This file is free software; the Free Software Foundation
956# gives unlimited permission to copy and/or distribute it,
957# with or without modifications, as long as this notice is preserved.
958
959# AM_SANITY_CHECK
960# ---------------
961AC_DEFUN([AM_SANITY_CHECK],
962[AC_MSG_CHECKING([whether build environment is sane])
963# Reject unsafe characters in $srcdir or the absolute working directory
964# name.  Accept space and tab only in the latter.
965am_lf='
966'
967case `pwd` in
968  *[[\\\"\#\$\&\'\`$am_lf]]*)
969    AC_MSG_ERROR([unsafe absolute working directory name]);;
970esac
971case $srcdir in
972  *[[\\\"\#\$\&\'\`$am_lf\ \	]]*)
973    AC_MSG_ERROR([unsafe srcdir value: '$srcdir']);;
974esac
975
976# Do 'set' in a subshell so we don't clobber the current shell's
977# arguments.  Must try -L first in case configure is actually a
978# symlink; some systems play weird games with the mod time of symlinks
979# (eg FreeBSD returns the mod time of the symlink's containing
980# directory).
981if (
982   am_has_slept=no
983   for am_try in 1 2; do
984     echo "timestamp, slept: $am_has_slept" > conftest.file
985     set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
986     if test "$[*]" = "X"; then
987	# -L didn't work.
988	set X `ls -t "$srcdir/configure" conftest.file`
989     fi
990     if test "$[*]" != "X $srcdir/configure conftest.file" \
991	&& test "$[*]" != "X conftest.file $srcdir/configure"; then
992
993	# If neither matched, then we have a broken ls.  This can happen
994	# if, for instance, CONFIG_SHELL is bash and it inherits a
995	# broken ls alias from the environment.  This has actually
996	# happened.  Such a system could not be considered "sane".
997	AC_MSG_ERROR([ls -t appears to fail.  Make sure there is not a broken
998  alias in your environment])
999     fi
1000     if test "$[2]" = conftest.file || test $am_try -eq 2; then
1001       break
1002     fi
1003     # Just in case.
1004     sleep 1
1005     am_has_slept=yes
1006   done
1007   test "$[2]" = conftest.file
1008   )
1009then
1010   # Ok.
1011   :
1012else
1013   AC_MSG_ERROR([newly created file is older than distributed files!
1014Check your system clock])
1015fi
1016AC_MSG_RESULT([yes])
1017# If we didn't sleep, we still need to ensure time stamps of config.status and
1018# generated files are strictly newer.
1019am_sleep_pid=
1020if grep 'slept: no' conftest.file >/dev/null 2>&1; then
1021  ( sleep 1 ) &
1022  am_sleep_pid=$!
1023fi
1024AC_CONFIG_COMMANDS_PRE(
1025  [AC_MSG_CHECKING([that generated files are newer than configure])
1026   if test -n "$am_sleep_pid"; then
1027     # Hide warnings about reused PIDs.
1028     wait $am_sleep_pid 2>/dev/null
1029   fi
1030   AC_MSG_RESULT([done])])
1031rm -f conftest.file
1032])
1033
1034# Copyright (C) 2009-2014 Free Software Foundation, Inc.
1035#
1036# This file is free software; the Free Software Foundation
1037# gives unlimited permission to copy and/or distribute it,
1038# with or without modifications, as long as this notice is preserved.
1039
1040# AM_SILENT_RULES([DEFAULT])
1041# --------------------------
1042# Enable less verbose build rules; with the default set to DEFAULT
1043# ("yes" being less verbose, "no" or empty being verbose).
1044AC_DEFUN([AM_SILENT_RULES],
1045[AC_ARG_ENABLE([silent-rules], [dnl
1046AS_HELP_STRING(
1047  [--enable-silent-rules],
1048  [less verbose build output (undo: "make V=1")])
1049AS_HELP_STRING(
1050  [--disable-silent-rules],
1051  [verbose build output (undo: "make V=0")])dnl
1052])
1053case $enable_silent_rules in @%:@ (((
1054  yes) AM_DEFAULT_VERBOSITY=0;;
1055   no) AM_DEFAULT_VERBOSITY=1;;
1056    *) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);;
1057esac
1058dnl
1059dnl A few 'make' implementations (e.g., NonStop OS and NextStep)
1060dnl do not support nested variable expansions.
1061dnl See automake bug#9928 and bug#10237.
1062am_make=${MAKE-make}
1063AC_CACHE_CHECK([whether $am_make supports nested variables],
1064   [am_cv_make_support_nested_variables],
1065   [if AS_ECHO([['TRUE=$(BAR$(V))
1066BAR0=false
1067BAR1=true
1068V=1
1069am__doit:
1070	@$(TRUE)
1071.PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then
1072  am_cv_make_support_nested_variables=yes
1073else
1074  am_cv_make_support_nested_variables=no
1075fi])
1076if test $am_cv_make_support_nested_variables = yes; then
1077  dnl Using '$V' instead of '$(V)' breaks IRIX make.
1078  AM_V='$(V)'
1079  AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
1080else
1081  AM_V=$AM_DEFAULT_VERBOSITY
1082  AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
1083fi
1084AC_SUBST([AM_V])dnl
1085AM_SUBST_NOTMAKE([AM_V])dnl
1086AC_SUBST([AM_DEFAULT_V])dnl
1087AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl
1088AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
1089AM_BACKSLASH='\'
1090AC_SUBST([AM_BACKSLASH])dnl
1091_AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
1092])
1093
1094# Copyright (C) 2001-2014 Free Software Foundation, Inc.
1095#
1096# This file is free software; the Free Software Foundation
1097# gives unlimited permission to copy and/or distribute it,
1098# with or without modifications, as long as this notice is preserved.
1099
1100# AM_PROG_INSTALL_STRIP
1101# ---------------------
1102# One issue with vendor 'install' (even GNU) is that you can't
1103# specify the program used to strip binaries.  This is especially
1104# annoying in cross-compiling environments, where the build's strip
1105# is unlikely to handle the host's binaries.
1106# Fortunately install-sh will honor a STRIPPROG variable, so we
1107# always use install-sh in "make install-strip", and initialize
1108# STRIPPROG with the value of the STRIP variable (set by the user).
1109AC_DEFUN([AM_PROG_INSTALL_STRIP],
1110[AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
1111# Installed binaries are usually stripped using 'strip' when the user
1112# run "make install-strip".  However 'strip' might not be the right
1113# tool to use in cross-compilation environments, therefore Automake
1114# will honor the 'STRIP' environment variable to overrule this program.
1115dnl Don't test for $cross_compiling = yes, because it might be 'maybe'.
1116if test "$cross_compiling" != no; then
1117  AC_CHECK_TOOL([STRIP], [strip], :)
1118fi
1119INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
1120AC_SUBST([INSTALL_STRIP_PROGRAM])])
1121
1122# Copyright (C) 2006-2014 Free Software Foundation, Inc.
1123#
1124# This file is free software; the Free Software Foundation
1125# gives unlimited permission to copy and/or distribute it,
1126# with or without modifications, as long as this notice is preserved.
1127
1128# _AM_SUBST_NOTMAKE(VARIABLE)
1129# ---------------------------
1130# Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
1131# This macro is traced by Automake.
1132AC_DEFUN([_AM_SUBST_NOTMAKE])
1133
1134# AM_SUBST_NOTMAKE(VARIABLE)
1135# --------------------------
1136# Public sister of _AM_SUBST_NOTMAKE.
1137AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
1138
1139# Check how to create a tarball.                            -*- Autoconf -*-
1140
1141# Copyright (C) 2004-2014 Free Software Foundation, Inc.
1142#
1143# This file is free software; the Free Software Foundation
1144# gives unlimited permission to copy and/or distribute it,
1145# with or without modifications, as long as this notice is preserved.
1146
1147# _AM_PROG_TAR(FORMAT)
1148# --------------------
1149# Check how to create a tarball in format FORMAT.
1150# FORMAT should be one of 'v7', 'ustar', or 'pax'.
1151#
1152# Substitute a variable $(am__tar) that is a command
1153# writing to stdout a FORMAT-tarball containing the directory
1154# $tardir.
1155#     tardir=directory && $(am__tar) > result.tar
1156#
1157# Substitute a variable $(am__untar) that extract such
1158# a tarball read from stdin.
1159#     $(am__untar) < result.tar
1160#
1161AC_DEFUN([_AM_PROG_TAR],
1162[# Always define AMTAR for backward compatibility.  Yes, it's still used
1163# in the wild :-(  We should find a proper way to deprecate it ...
1164AC_SUBST([AMTAR], ['$${TAR-tar}'])
1165
1166# We'll loop over all known methods to create a tar archive until one works.
1167_am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
1168
1169m4_if([$1], [v7],
1170  [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],
1171
1172  [m4_case([$1],
1173    [ustar],
1174     [# The POSIX 1988 'ustar' format is defined with fixed-size fields.
1175      # There is notably a 21 bits limit for the UID and the GID.  In fact,
1176      # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343
1177      # and bug#13588).
1178      am_max_uid=2097151 # 2^21 - 1
1179      am_max_gid=$am_max_uid
1180      # The $UID and $GID variables are not portable, so we need to resort
1181      # to the POSIX-mandated id(1) utility.  Errors in the 'id' calls
1182      # below are definitely unexpected, so allow the users to see them
1183      # (that is, avoid stderr redirection).
1184      am_uid=`id -u || echo unknown`
1185      am_gid=`id -g || echo unknown`
1186      AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format])
1187      if test $am_uid -le $am_max_uid; then
1188         AC_MSG_RESULT([yes])
1189      else
1190         AC_MSG_RESULT([no])
1191         _am_tools=none
1192      fi
1193      AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format])
1194      if test $am_gid -le $am_max_gid; then
1195         AC_MSG_RESULT([yes])
1196      else
1197        AC_MSG_RESULT([no])
1198        _am_tools=none
1199      fi],
1200
1201  [pax],
1202    [],
1203
1204  [m4_fatal([Unknown tar format])])
1205
1206  AC_MSG_CHECKING([how to create a $1 tar archive])
1207
1208  # Go ahead even if we have the value already cached.  We do so because we
1209  # need to set the values for the 'am__tar' and 'am__untar' variables.
1210  _am_tools=${am_cv_prog_tar_$1-$_am_tools}
1211
1212  for _am_tool in $_am_tools; do
1213    case $_am_tool in
1214    gnutar)
1215      for _am_tar in tar gnutar gtar; do
1216        AM_RUN_LOG([$_am_tar --version]) && break
1217      done
1218      am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
1219      am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
1220      am__untar="$_am_tar -xf -"
1221      ;;
1222    plaintar)
1223      # Must skip GNU tar: if it does not support --format= it doesn't create
1224      # ustar tarball either.
1225      (tar --version) >/dev/null 2>&1 && continue
1226      am__tar='tar chf - "$$tardir"'
1227      am__tar_='tar chf - "$tardir"'
1228      am__untar='tar xf -'
1229      ;;
1230    pax)
1231      am__tar='pax -L -x $1 -w "$$tardir"'
1232      am__tar_='pax -L -x $1 -w "$tardir"'
1233      am__untar='pax -r'
1234      ;;
1235    cpio)
1236      am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
1237      am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
1238      am__untar='cpio -i -H $1 -d'
1239      ;;
1240    none)
1241      am__tar=false
1242      am__tar_=false
1243      am__untar=false
1244      ;;
1245    esac
1246
1247    # If the value was cached, stop now.  We just wanted to have am__tar
1248    # and am__untar set.
1249    test -n "${am_cv_prog_tar_$1}" && break
1250
1251    # tar/untar a dummy directory, and stop if the command works.
1252    rm -rf conftest.dir
1253    mkdir conftest.dir
1254    echo GrepMe > conftest.dir/file
1255    AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
1256    rm -rf conftest.dir
1257    if test -s conftest.tar; then
1258      AM_RUN_LOG([$am__untar <conftest.tar])
1259      AM_RUN_LOG([cat conftest.dir/file])
1260      grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
1261    fi
1262  done
1263  rm -rf conftest.dir
1264
1265  AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
1266  AC_MSG_RESULT([$am_cv_prog_tar_$1])])
1267
1268AC_SUBST([am__tar])
1269AC_SUBST([am__untar])
1270]) # _AM_PROG_TAR
1271
1272m4_include([m4/ac_backport_259_ssizet.m4])
1273m4_include([m4/acx_pthread.m4])
1274m4_include([m4/libevent_openssl.m4])
1275m4_include([m4/libtool.m4])
1276m4_include([m4/ltoptions.m4])
1277m4_include([m4/ltsugar.m4])
1278m4_include([m4/ltversion.m4])
1279m4_include([m4/lt~obsolete.m4])
1280m4_include([m4/ntp_pkg_config.m4])
1281