# libtool.m4 - Configure libtool for the host system. -*-Autoconf-*-

## Copyright 1996, 1997, 1998, 1999, 2000, 2001

## Free Software Foundation, Inc.

## Originally by Gordon Matzigkeit <gord@gnu.ai.mit.edu>, 1996

##

## This program is free software; you can redistribute it and/or modify

## it under the terms of the GNU General Public License as published by

## the Free Software Foundation; either version 2 of the License, or

## (at your option) any later version.

##

## This program is distributed in the hope that it will be useful, but

## WITHOUT ANY WARRANTY; without even the implied warranty of

## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

## General Public License for more details.

##

## You should have received a copy of the GNU General Public License

## along with this program; if not, write to the Free Software

## Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.

##

## As a special exception to the GNU General Public License, if you

## distribute this file as part of a program that contains a

## configuration script generated by Autoconf, you may include it under

## the same distribution terms that you use for the rest of that program.

# serial 47 AC_PROG_LIBTOOL

# Debian $Rev: 214 $

# AC_PROVIDE_IFELSE(MACRO-NAME, IF-PROVIDED, IF-NOT-PROVIDED)

# -----------------------------------------------------------

# If this macro is not defined by Autoconf, define it here.

m4_ifdef([AC_PROVIDE_IFELSE],

         [],

         [m4_define([AC_PROVIDE_IFELSE],

	         [m4_ifdef([AC_PROVIDE_$1],

		           [$2], [$3])])])

# AC_PROG_LIBTOOL

# ---------------

AC_DEFUN([AC_PROG_LIBTOOL],

[AC_REQUIRE([_AC_PROG_LIBTOOL])dnl

dnl If AC_PROG_CXX has already been expanded, run AC_LIBTOOL_CXX

dnl immediately, otherwise, hook it in at the end of AC_PROG_CXX.

  AC_PROVIDE_IFELSE([AC_PROG_CXX],

    [AC_LIBTOOL_CXX],

    [define([AC_PROG_CXX], defn([AC_PROG_CXX])[AC_LIBTOOL_CXX

  ])])

dnl And a similar setup for Fortran 77 support

  AC_PROVIDE_IFELSE([AC_PROG_F77],

    [AC_LIBTOOL_F77],

    [define([AC_PROG_F77], defn([AC_PROG_F77])[AC_LIBTOOL_F77

])])

dnl Quote A][M_PROG_GCJ so that aclocal doesn't bring it in needlessly.

dnl If either AC_PROG_GCJ or A][M_PROG_GCJ have already been expanded, run

dnl AC_LIBTOOL_GCJ immediately, otherwise, hook it in at the end of both.

  AC_PROVIDE_IFELSE([AC_PROG_GCJ],

    [AC_LIBTOOL_GCJ],

    [AC_PROVIDE_IFELSE([A][M_PROG_GCJ],

      [AC_LIBTOOL_GCJ],

      [AC_PROVIDE_IFELSE([LT_AC_PROG_GCJ],

	[AC_LIBTOOL_GCJ],

      [ifdef([AC_PROG_GCJ],

	     [define([AC_PROG_GCJ], defn([AC_PROG_GCJ])[AC_LIBTOOL_GCJ])])

       ifdef([A][M_PROG_GCJ],

	     [define([A][M_PROG_GCJ], defn([A][M_PROG_GCJ])[AC_LIBTOOL_GCJ])])

       ifdef([LT_AC_PROG_GCJ],

	     [define([LT_AC_PROG_GCJ],

		defn([LT_AC_PROG_GCJ])[AC_LIBTOOL_GCJ])])])])

])])# AC_PROG_LIBTOOL

# _AC_PROG_LIBTOOL

# ----------------

AC_DEFUN([_AC_PROG_LIBTOOL],

[AC_REQUIRE([AC_LIBTOOL_SETUP])dnl

AC_BEFORE([$0],[AC_LIBTOOL_CXX])dnl

AC_BEFORE([$0],[AC_LIBTOOL_F77])dnl

AC_BEFORE([$0],[AC_LIBTOOL_GCJ])dnl

# This can be used to rebuild libtool when needed

LIBTOOL_DEPS="$ac_aux_dir/ltmain.sh"

# Always use our own libtool.

LIBTOOL='$(SHELL) $(top_builddir)/libtool'

AC_SUBST(LIBTOOL)dnl

# Prevent multiple expansion

define([AC_PROG_LIBTOOL], [])

])# _AC_PROG_LIBTOOL

# AC_LIBTOOL_SETUP

# ----------------

AC_DEFUN([AC_LIBTOOL_SETUP],

[AC_PREREQ(2.50)dnl

AC_REQUIRE([AC_ENABLE_SHARED])dnl

AC_REQUIRE([AC_ENABLE_STATIC])dnl

AC_REQUIRE([AC_ENABLE_FAST_INSTALL])dnl

AC_REQUIRE([AC_CANONICAL_HOST])dnl

AC_REQUIRE([AC_CANONICAL_BUILD])dnl

AC_REQUIRE([AC_PROG_CC])dnl

AC_REQUIRE([AC_PROG_LD])dnl

AC_REQUIRE([AC_PROG_LD_RELOAD_FLAG])dnl

AC_REQUIRE([AC_PROG_NM])dnl

AC_REQUIRE([AC_PROG_LN_S])dnl

AC_REQUIRE([AC_DEPLIBS_CHECK_METHOD])dnl

# Autoconf 2.13's AC_OBJEXT and AC_EXEEXT macros only works for C compilers!

AC_REQUIRE([AC_OBJEXT])dnl

AC_REQUIRE([AC_EXEEXT])dnl

dnl

AC_LIBTOOL_SYS_MAX_CMD_LEN

AC_LIBTOOL_SYS_GLOBAL_SYMBOL_PIPE

AC_LIBTOOL_OBJDIR

AC_REQUIRE([_LT_AC_SYS_COMPILER])dnl

_LT_AC_PROG_ECHO_BACKSLASH

case $host_os in

aix3*)

  # AIX sometimes has problems with the GCC collect2 program.  For some

  # reason, if we set the COLLECT_NAMES environment variable, the problems

  # vanish in a puff of smoke.

  if test "X${COLLECT_NAMES+set}" != Xset; then

    COLLECT_NAMES=

    export COLLECT_NAMES

  fi

  ;;

esac

# Sed substitution that helps us do robust quoting.  It backslashifies

# metacharacters that are still active within double-quoted strings.

Xsed='sed -e s/^X//'

[sed_quote_subst='s/\([\\"\\`$\\\\]\)/\\\1/g']

# Same as above, but do not quote variable references.

[double_quote_subst='s/\([\\"\\`\\\\]\)/\\\1/g']

# Sed substitution to delay expansion of an escaped shell variable in a

# double_quote_subst'ed string.

delay_variable_subst='s/\\\\\\\\\\\$/\\\\\\$/g'

# Sed substitution to avoid accidental globbing in evaled expressions

no_glob_subst='s/\*/\\\*/g'

# Constants:

rm="rm -f"

# Global variables:

default_ofile=libtool

can_build_shared=yes

# All known linkers require a `.a' archive for static linking (except M$VC,

# which needs '.lib').

libext=a

ltmain="$ac_aux_dir/ltmain.sh"

ofile="$default_ofile"

with_gnu_ld="$lt_cv_prog_gnu_ld"

AC_CHECK_TOOL(AR, ar, false)

AC_CHECK_TOOL(RANLIB, ranlib, :)

AC_CHECK_TOOL(STRIP, strip, :)

old_CC="$CC"

old_CFLAGS="$CFLAGS"

# Set sane defaults for various variables

test -z "$AR" && AR=ar

test -z "$AR_FLAGS" && AR_FLAGS=cru

test -z "$AS" && AS=as

test -z "$CC" && CC=cc

test -z "$LTCC" && LTCC=$CC

test -z "$DLLTOOL" && DLLTOOL=dlltool

test -z "$LD" && LD=ld

test -z "$LN_S" && LN_S="ln -s"

test -z "$MAGIC_CMD" && MAGIC_CMD=file

test -z "$NM" && NM=nm

test -z "$SED" && SED=sed

test -z "$OBJDUMP" && OBJDUMP=objdump

test -z "$RANLIB" && RANLIB=:

test -z "$STRIP" && STRIP=:

test -z "$ac_objext" && ac_objext=o

# Determine commands to create old-style static archives.

old_archive_cmds='$AR $AR_FLAGS $oldlib$oldobjs$old_deplibs'

old_postinstall_cmds='chmod 644 $oldlib'

old_postuninstall_cmds=

if test -n "$RANLIB"; then

  case $host_os in

  openbsd*)

    old_postinstall_cmds="\$RANLIB -t \$oldlib~$old_postinstall_cmds"

    ;;

  *)

    old_postinstall_cmds="\$RANLIB \$oldlib~$old_postinstall_cmds"

    ;;

  esac

  old_archive_cmds="$old_archive_cmds~\$RANLIB \$oldlib"

fi

# Only perform the check for file, if the check method requires it

case $deplibs_check_method in

file_magic*)

  if test "$file_magic_cmd" = '$MAGIC_CMD'; then

    AC_PATH_MAGIC

  fi

  ;;

esac

AC_PROVIDE_IFELSE([AC_LIBTOOL_DLOPEN], enable_dlopen=yes, enable_dlopen=no)

AC_PROVIDE_IFELSE([AC_LIBTOOL_WIN32_DLL],

enable_win32_dll=yes, enable_win32_dll=no)

AC_ARG_ENABLE([libtool-lock],

    [AC_HELP_STRING([--disable-libtool-lock],

	[avoid locking (might break parallel builds)])])

test "x$enable_libtool_lock" != xno && enable_libtool_lock=yes

AC_ARG_WITH([pic],

    [AC_HELP_STRING([--with-pic],

	[try to use only PIC/non-PIC objects @<:@default=use both@:>@])],

    [pic_mode="$withval"],

    [pic_mode=default])

test -z "$pic_mode" && pic_mode=default

# Use C for the default configuration in the libtool script

tagname=

AC_LIBTOOL_LANG_C_CONFIG

_LT_AC_TAGCONFIG

])# AC_LIBTOOL_SETUP

# _LT_AC_SYS_COMPILER

# -------------------

AC_DEFUN([_LT_AC_SYS_COMPILER],

[AC_REQUIRE([AC_PROG_CC])dnl

# If no C compiler was specified, use CC.

LTCC=${LTCC-"$CC"}

# Allow CC to be a program name with arguments.

compiler=$CC

])# _LT_AC_SYS_COMPILER

# _LT_AC_SYS_LIBPATH_AIX

# ----------------------

# Links a minimal program and checks the executable

# for the system default hardcoded library path. In most cases,

# this is /usr/lib:/lib, but when the MPI compilers are used

# the location of the communication and MPI libs are included too.

# If we don't find anything, use the default library path according

# to the aix ld manual.

AC_DEFUN([_LT_AC_SYS_LIBPATH_AIX],

[AC_LINK_IFELSE(AC_LANG_PROGRAM,[

aix_libpath=`dump -H conftest$ac_exeext 2>/dev/null | $SED -n -e '/Import File Strings/,/^$/ { /^0/ { s/^0  *\(.*\)$/\1/; p; }

}'`

# Check for a 64-bit object if we didn't find anything.

if test -z "$aix_libpath"; then aix_libpath=`dump -HX64 conftest$ac_exeext 2>/dev/null | $SED -n -e '/Import File Strings/,/^$/ { /^0/ { s/^0  *\(.*\)$/\1/; p; }

}'`; fi],[])

if test -z "$aix_libpath"; then aix_libpath="/usr/lib:/lib"; fi

])# _LT_AC_SYS_LIBPATH_AIX

# _LT_AC_SHELL_INIT(ARG)

# ----------------------

AC_DEFUN([_LT_AC_SHELL_INIT],

[ifdef([AC_DIVERSION_NOTICE],

	     [AC_DIVERT_PUSH(AC_DIVERSION_NOTICE)],

	 [AC_DIVERT_PUSH(NOTICE)])

$1

AC_DIVERT_POP

])# _LT_AC_SHELL_INIT

# _LT_AC_PROG_ECHO_BACKSLASH

# --------------------------

# Add some code to the start of the generated configure script which

# will find an echo command which doesn't interpret backslashes.

AC_DEFUN([_LT_AC_PROG_ECHO_BACKSLASH],

[_LT_AC_SHELL_INIT([

# Check that we are running under the correct shell.

SHELL=${CONFIG_SHELL-/bin/sh}

case X$ECHO in

X*--fallback-echo)

  # Remove one level of quotation (which was required for Make).

  ECHO=`echo "$ECHO" | sed 's,\\\\\[$]\\[$]0,'[$]0','`

  ;;

esac

echo=${ECHO-echo}

if test "X[$]1" = X--no-reexec; then

  # Discard the --no-reexec flag, and continue.

  shift

elif test "X[$]1" = X--fallback-echo; then

  # Avoid inline document here, it may be left over

  :

elif test "X`($echo '\t') 2>/dev/null`" = 'X\t' ; then

  # Yippee, $echo works!

  :

else

  # Restart under the correct shell.

  exec $SHELL "[$]0" --no-reexec ${1+"[$]@"}

fi

if test "X[$]1" = X--fallback-echo; then

  # used as fallback echo

  shift

  cat <<EOF

[$]*

EOF

  exit 0

fi

# The HP-UX ksh and POSIX shell print the target directory to stdout

# if CDPATH is set.

if test "X${CDPATH+set}" = Xset; then CDPATH=:; export CDPATH; fi

if test -z "$ECHO"; then

if test "X${echo_test_string+set}" != Xset; then

# find a string as large as possible, as long as the shell can cope with it

  for cmd in 'sed 50q "[$]0"' 'sed 20q "[$]0"' 'sed 10q "[$]0"' 'sed 2q "[$]0"' 'echo test'; do

    # expected sizes: less than 2Kb, 1Kb, 512 bytes, 16 bytes, ...

    if (echo_test_string="`eval $cmd`") 2>/dev/null &&

       echo_test_string="`eval $cmd`" &&

       (test "X$echo_test_string" = "X$echo_test_string") 2>/dev/null

    then

      break

    fi

  done

fi

if test "X`($echo '\t') 2>/dev/null`" = 'X\t' &&

   echo_testing_string=`($echo "$echo_test_string") 2>/dev/null` &&

   test "X$echo_testing_string" = "X$echo_test_string"; then

  :

else

  # The Solaris, AIX, and Digital Unix default echo programs unquote

  # backslashes.  This makes it impossible to quote backslashes using

  #   echo "$something" | sed 's/\\/\\\\/g'

  #

  # So, first we look for a working echo in the user's PATH.

  lt_save_ifs="$IFS"; IFS=$PATH_SEPARATOR

  for dir in $PATH /usr/ucb; do

    IFS="$lt_save_ifs"

    if (test -f $dir/echo || test -f $dir/echo$ac_exeext) &&

       test "X`($dir/echo '\t') 2>/dev/null`" = 'X\t' &&

       echo_testing_string=`($dir/echo "$echo_test_string") 2>/dev/null` &&

       test "X$echo_testing_string" = "X$echo_test_string"; then

      echo="$dir/echo"

      break

    fi

  done

  IFS="$lt_save_ifs"

  if test "X$echo" = Xecho; then

    # We didn't find a better echo, so look for alternatives.

    if test "X`(print -r '\t') 2>/dev/null`" = 'X\t' &&

       echo_testing_string=`(print -r "$echo_test_string") 2>/dev/null` &&

       test "X$echo_testing_string" = "X$echo_test_string"; then

      # This shell has a builtin print -r that does the trick.

      echo='print -r'

    elif (test -f /bin/ksh || test -f /bin/ksh$ac_exeext) &&

	 test "X$CONFIG_SHELL" != X/bin/ksh; then

      # If we have ksh, try running configure again with it.

      ORIGINAL_CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}

      export ORIGINAL_CONFIG_SHELL

      CONFIG_SHELL=/bin/ksh

      export CONFIG_SHELL

      exec $CONFIG_SHELL "[$]0" --no-reexec ${1+"[$]@"}

    else

      # Try using printf.

      echo='printf %s\n'

      if test "X`($echo '\t') 2>/dev/null`" = 'X\t' &&

	 echo_testing_string=`($echo "$echo_test_string") 2>/dev/null` &&

	 test "X$echo_testing_string" = "X$echo_test_string"; then

	# Cool, printf works

	:

      elif echo_testing_string=`($ORIGINAL_CONFIG_SHELL "[$]0" --fallback-echo '\t') 2>/dev/null` &&

	   test "X$echo_testing_string" = 'X\t' &&

	   echo_testing_string=`($ORIGINAL_CONFIG_SHELL "[$]0" --fallback-echo "$echo_test_string") 2>/dev/null` &&

	   test "X$echo_testing_string" = "X$echo_test_string"; then

	CONFIG_SHELL=$ORIGINAL_CONFIG_SHELL

	export CONFIG_SHELL

	SHELL="$CONFIG_SHELL"

	export SHELL

	echo="$CONFIG_SHELL [$]0 --fallback-echo"

      elif echo_testing_string=`($CONFIG_SHELL "[$]0" --fallback-echo '\t') 2>/dev/null` &&

	   test "X$echo_testing_string" = 'X\t' &&

	   echo_testing_string=`($CONFIG_SHELL "[$]0" --fallback-echo "$echo_test_string") 2>/dev/null` &&

	   test "X$echo_testing_string" = "X$echo_test_string"; then

	echo="$CONFIG_SHELL [$]0 --fallback-echo"

      else

	# maybe with a smaller string...

	prev=:

	for cmd in 'echo test' 'sed 2q "[$]0"' 'sed 10q "[$]0"' 'sed 20q "[$]0"' 'sed 50q "[$]0"'; do

	  if (test "X$echo_test_string" = "X`eval $cmd`") 2>/dev/null

	  then

	    break

	  fi

	  prev="$cmd"

	done

	if test "$prev" != 'sed 50q "[$]0"'; then

	  echo_test_string=`eval $prev`

	  export echo_test_string

	  exec ${ORIGINAL_CONFIG_SHELL-${CONFIG_SHELL-/bin/sh}} "[$]0" ${1+"[$]@"}

	else

	  # Oops.  We lost completely, so just stick with echo.

	  echo=echo

	fi

      fi

    fi

  fi

fi

fi

# Copy echo and quote the copy suitably for passing to libtool from

# the Makefile, instead of quoting the original, which is used later.

ECHO=$echo

if test "X$ECHO" = "X$CONFIG_SHELL [$]0 --fallback-echo"; then

   ECHO="$CONFIG_SHELL \\\$\[$]0 --fallback-echo"

fi

AC_SUBST(ECHO)

])])# _LT_AC_PROG_ECHO_BACKSLASH

# _LT_AC_LOCK

# -----------

AC_DEFUN([_LT_AC_LOCK],

[AC_ARG_ENABLE([libtool-lock],

    [AC_HELP_STRING([--disable-libtool-lock],

	[avoid locking (might break parallel builds)])])

test "x$enable_libtool_lock" != xno && enable_libtool_lock=yes

# Some flags need to be propagated to the compiler or linker for good

# libtool support.

case $host in

ia64-*-hpux*)

  # Find out which ABI we are using.

  echo 'int i;' > conftest.$ac_ext

  if AC_TRY_EVAL(ac_compile); then

    case `/usr/bin/file conftest.$ac_objext` in

    *ELF-32*)

      HPUX_IA64_MODE="32"

      ;;

    *ELF-64*)

      HPUX_IA64_MODE="64"

      ;;

    esac

  fi

  rm -rf conftest*

  ;;

*-*-irix6*)

  # Find out which ABI we are using.

  echo '[#]line __oline__ "configure"' > conftest.$ac_ext

  if AC_TRY_EVAL(ac_compile); then

   if test "$lt_cv_prog_gnu_ld" = yes; then

    case `/usr/bin/file conftest.$ac_objext` in

    *32-bit*)

      LD="${LD-ld} -melf32bsmip"

      ;;

    *N32*)

      LD="${LD-ld} -melf32bmipn32"

      ;;

    *64-bit*)

      LD="${LD-ld} -melf64bmip"

      ;;

    esac

   else

    case `/usr/bin/file conftest.$ac_objext` in

    *32-bit*)

      LD="${LD-ld} -32"

      ;;

    *N32*)

      LD="${LD-ld} -n32"

      ;;

    *64-bit*)

      LD="${LD-ld} -64"

      ;;

    esac

   fi

  fi

  rm -rf conftest*

  ;;

x86_64-*linux*|ppc*-*linux*|powerpc*-*linux*|s390*-*linux*|sparc*-*linux*)

  # Find out which ABI we are using.

  echo 'int i;' > conftest.$ac_ext

  if AC_TRY_EVAL(ac_compile); then

    case "`/usr/bin/file conftest.o`" in

    *32-bit*)

      case $host in

        x86_64-*linux*)

          LD="${LD-ld} -m elf_i386"

          ;;

        ppc64-*linux*|powerpc64-*linux*)

          LD="${LD-ld} -m elf32ppclinux"

          ;;

        s390x-*linux*)

          LD="${LD-ld} -m elf_s390"

          ;;

        sparc64-*linux*)

          LD="${LD-ld} -m elf32_sparc"

          ;;

      esac

      ;;

    *64-bit*)

      case $host in

        x86_64-*linux*)

          LD="${LD-ld} -m elf_x86_64"

          ;;

        ppc*-*linux*|powerpc*-*linux*)

          LD="${LD-ld} -m elf64ppc"

          ;;

        s390*-*linux*)

          LD="${LD-ld} -m elf64_s390"

          ;;

        sparc*-*linux*)

          LD="${LD-ld} -m elf64_sparc"

          ;;

      esac

      ;;

    esac

  fi

  rm -rf conftest*

  ;;

*-*-sco3.2v5*)

  # On SCO OpenServer 5, we need -belf to get full-featured binaries.

  SAVE_CFLAGS="$CFLAGS"

  CFLAGS="$CFLAGS -belf"

  AC_CACHE_CHECK([whether the C compiler needs -belf], lt_cv_cc_needs_belf,

    [AC_LANG_PUSH(C)

     AC_TRY_LINK([],[],[lt_cv_cc_needs_belf=yes],[lt_cv_cc_needs_belf=no])

     AC_LANG_POP])

  if test x"$lt_cv_cc_needs_belf" != x"yes"; then

    # this is probably gcc 2.8.0, egcs 1.0 or newer; no need for -belf

    CFLAGS="$SAVE_CFLAGS"

  fi

  ;;

AC_PROVIDE_IFELSE([AC_LIBTOOL_WIN32_DLL],

[*-*-cygwin* | *-*-mingw* | *-*-pw32*)

  AC_CHECK_TOOL(DLLTOOL, dlltool, false)

  AC_CHECK_TOOL(AS, as, false)

  AC_CHECK_TOOL(OBJDUMP, objdump, false)

  ;;

  ])

esac

need_locks="$enable_libtool_lock"

])# _LT_AC_LOCK

# AC_LIBTOOL_COMPILER_OPTION(MESSAGE, VARIABLE-NAME, FLAGS,

#		[OUTPUT-FILE], [ACTION-SUCCESS], [ACTION-FAILURE])

# ----------------------------------------------------------------

# Check whether the given compiler option works

AC_DEFUN([AC_LIBTOOL_COMPILER_OPTION],

[AC_REQUIRE([LT_AC_PROG_SED])

AC_CACHE_CHECK([$1], [$2],

  [$2=no

  ifelse([$4], , [ac_outfile=conftest.$ac_objext], [ac_outfile=$4])

   printf "$lt_simple_compile_test_code" > conftest.$ac_ext

   lt_compiler_flag="$3"

   # Insert the option either (1) after the last *FLAGS variable, or

   # (2) before a word containing "conftest.", or (3) at the end.

   # Note that $ac_compile itself does not contain backslashes and begins

   # with a dollar sign (not a hyphen), so the echo should work correctly.

   # The option is referenced via a variable to avoid confusing sed.

   lt_compile=`echo "$ac_compile" | $SED \

   -e 's:.*FLAGS}? :&$lt_compiler_flag :; t' \

   -e 's: [[^ ]]*conftest\.: $lt_compiler_flag&:; t' \

   -e 's:$: $lt_compiler_flag:'`

   (eval echo "\"\$as_me:__oline__: $lt_compile\"" >&AS_MESSAGE_LOG_FD)

   (eval "$lt_compile" 2>conftest.err)

   ac_status=$?

   cat conftest.err >&AS_MESSAGE_LOG_FD

   echo "$as_me:__oline__: \$? = $ac_status" >&AS_MESSAGE_LOG_FD

   if (exit $ac_status) && test -s "$ac_outfile"; then

     # The compiler can only warn and ignore the option if not recognized

     # So say no if there are warnings

     if test ! -s conftest.err; then

       $2=yes

     fi

   fi

   $rm conftest*

])

if test x"[$]$2" = xyes; then

    ifelse([$5], , :, [$5])

else

    ifelse([$6], , :, [$6])

fi

])# AC_LIBTOOL_COMPILER_OPTION

# AC_LIBTOOL_LINKER_OPTION(MESSAGE, VARIABLE-NAME, FLAGS,

#                          [ACTION-SUCCESS], [ACTION-FAILURE])

# ------------------------------------------------------------

# Check whether the given compiler option works

AC_DEFUN([AC_LIBTOOL_LINKER_OPTION],

[AC_CACHE_CHECK([$1], [$2],

  [$2=no

   save_LDFLAGS="$LDFLAGS"

   LDFLAGS="$LDFLAGS $3"

   printf "$lt_simple_link_test_code" > conftest.$ac_ext

   if (eval $ac_link 2>conftest.err) && test -s conftest$ac_exeext; then

     # The compiler can only warn and ignore the option if not recognized

     # So say no if there are warnings

     if test -s conftest.err; then

       # Append any errors to the config.log.

       cat conftest.err 1>&AS_MESSAGE_LOG_FD

     else

       $2=yes

     fi

   fi

   $rm conftest*

   LDFLAGS="$save_LDFLAGS"

])

if test x"[$]$2" = xyes; then

    ifelse([$4], , :, [$4])

else

    ifelse([$5], , :, [$5])

fi

])# AC_LIBTOOL_LINKER_OPTION

# AC_LIBTOOL_SYS_MAX_CMD_LEN

# --------------------------

AC_DEFUN([AC_LIBTOOL_SYS_MAX_CMD_LEN],

[# find the maximum length of command line arguments

AC_MSG_CHECKING([the maximum length of command line arguments])

AC_CACHE_VAL([lt_cv_sys_max_cmd_len], [dnl

  i=0

  teststring="ABCD"

  case $build_os in

  msdosdjgpp*)

    # On DJGPP, this test can blow up pretty badly due to problems in libc

    # (any single argument exceeding 2000 bytes causes a buffer overrun

    # during glob expansion).  Even if it were fixed, the result of this

    # check would be larger than it should be.

    lt_cv_sys_max_cmd_len=12288;    # 12K is about right

    ;;

  gnu*)

    # Under GNU Hurd, this test is not required because there is

    # no limit to the length of command line arguments.

    # Libtool will interpret -1 as no limit whatsoever

    lt_cv_sys_max_cmd_len=-1;

    ;;

  cygwin* | mingw*)

    # On Win9x/ME, this test blows up -- it succeeds, but takes

    # about 5 minutes as the teststring grows exponentially.

    # Worse, since 9x/ME are not pre-emptively multitasking,

    # you end up with a "frozen" computer, even though with patience

    # the test eventually succeeds (with a max line length of 256k).

    # Instead, let's just punt: use the minimum linelength reported by

    # all of the supported platforms: 8192 (on NT/2K/XP).

    lt_cv_sys_max_cmd_len=8192;

    ;;

  amigaos*)

    # On AmigaOS with pdksh, this test takes hours, literally.

    # So we just punt and use a minimum line length of 8192.

    lt_cv_sys_max_cmd_len=8192;

    ;;

 *)

    # If test is not a shell built-in, we'll probably end up computing a

    # maximum length that is only half of the actual maximum length, but

    # we can't tell.

    while (test "X"`$CONFIG_SHELL [$]0 --fallback-echo "X$teststring" 2>/dev/null` \

	       = "XX$teststring") >/dev/null 2>&1 &&

	    new_result=`expr "X$teststring" : ".*" 2>&1` &&

	    lt_cv_sys_max_cmd_len=$new_result &&

	    test $i != 17 # 1/2 MB should be enough

    do

      i=`expr $i + 1`

      teststring=$teststring$teststring

    done

    teststring=

    # Add a significant safety factor because C++ compilers can tack on massive

    # amounts of additional arguments before passing them to the linker.

    # It appears as though 1/2 is a usable value.

    lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 2`

    ;;

  esac

])

if test -n $lt_cv_sys_max_cmd_len ; then

  AC_MSG_RESULT($lt_cv_sys_max_cmd_len)

else

  AC_MSG_RESULT(none)

fi

])# AC_LIBTOOL_SYS_MAX_CMD_LEN

# _LT_AC_CHECK_DLFCN

# --------------------

AC_DEFUN([_LT_AC_CHECK_DLFCN],

[AC_CHECK_HEADERS(dlfcn.h)dnl

])# _LT_AC_CHECK_DLFCN

# _LT_AC_TRY_DLOPEN_SELF (ACTION-IF-TRUE, ACTION-IF-TRUE-W-USCORE,

#                           ACTION-IF-FALSE, ACTION-IF-CROSS-COMPILING)

# ------------------------------------------------------------------

AC_DEFUN([_LT_AC_TRY_DLOPEN_SELF],

[AC_REQUIRE([_LT_AC_CHECK_DLFCN])dnl

if test "$cross_compiling" = yes; then :

  [$4]

else

  lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2

  lt_status=$lt_dlunknown

  cat > conftest.$ac_ext <<EOF

[#line __oline__ "configure"

#include "confdefs.h"

#if HAVE_DLFCN_H

#include <dlfcn.h>

#endif

#include <stdio.h>

#ifdef RTLD_GLOBAL

#  define LT_DLGLOBAL		RTLD_GLOBAL

#else

#  ifdef DL_GLOBAL

#    define LT_DLGLOBAL		DL_GLOBAL

#  else

#    define LT_DLGLOBAL		0

#  endif

#endif

/* We may have to define LT_DLLAZY_OR_NOW in the command line if we

   find out it does not work in some platform. */

#ifndef LT_DLLAZY_OR_NOW

#  ifdef RTLD_LAZY

#    define LT_DLLAZY_OR_NOW		RTLD_LAZY

#  else

#    ifdef DL_LAZY

#      define LT_DLLAZY_OR_NOW		DL_LAZY

#    else

#      ifdef RTLD_NOW

#        define LT_DLLAZY_OR_NOW	RTLD_NOW

#      else

#        ifdef DL_NOW

#          define LT_DLLAZY_OR_NOW	DL_NOW

#        else

#          define LT_DLLAZY_OR_NOW	0

#        endif

#      endif

#    endif

#  endif

#endif

#ifdef __cplusplus

extern "C" void exit (int);

#endif

void fnord() { int i=42;}

int main ()

{

  void *self = dlopen (0, LT_DLGLOBAL|LT_DLLAZY_OR_NOW);

  int status = $lt_dlunknown;

  if (self)

    {

      if (dlsym (self,"fnord"))       status = $lt_dlno_uscore;

      else if (dlsym( self,"_fnord")) status = $lt_dlneed_uscore;

      /* dlclose (self); */

    }

    exit (status);

}]

EOF

  if AC_TRY_EVAL(ac_link) && test -s conftest${ac_exeext} 2>/dev/null; then

    (./conftest; exit; ) 2>/dev/null

    lt_status=$?

    case x$lt_status in

      x$lt_dlno_uscore) $1 ;;

      x$lt_dlneed_uscore) $2 ;;

      x$lt_unknown|x*) $3 ;;

    esac

  else :

    # compilation failed

    $3

  fi

fi

rm -fr conftest*

])# _LT_AC_TRY_DLOPEN_SELF

# AC_LIBTOOL_DLOPEN_SELF

# -------------------

AC_DEFUN([AC_LIBTOOL_DLOPEN_SELF],

[AC_REQUIRE([_LT_AC_CHECK_DLFCN])dnl

if test "x$enable_dlopen" != xyes; then

  enable_dlopen=unknown

  enable_dlopen_self=unknown

  enable_dlopen_self_static=unknown

else

  lt_cv_dlopen=no

  lt_cv_dlopen_libs=

  case $host_os in

  beos*)

    lt_cv_dlopen="load_add_on"

    lt_cv_dlopen_libs=

    lt_cv_dlopen_self=yes

    ;;

  mingw* | pw32*)

    lt_cv_dlopen="LoadLibrary"

    lt_cv_dlopen_libs=

   ;;

  cygwin*)

    lt_cv_dlopen="dlopen"

    lt_cv_dlopen_libs=

   ;;

  darwin*)

  # if libdl is installed we need to link against it

    AC_CHECK_LIB([dl], [dlopen],

		[lt_cv_dlopen="dlopen" lt_cv_dlopen_libs="-ldl"],[

    lt_cv_dlopen="dyld"

    lt_cv_dlopen_libs=

    lt_cv_dlopen_self=yes

    ])

   ;;

  *)

    AC_CHECK_FUNC([shl_load],

	  [lt_cv_dlopen="shl_load"],

      [AC_CHECK_LIB([dld], [shl_load],

	    [lt_cv_dlopen="shl_load" lt_cv_dlopen_libs="-dld"],

	[AC_CHECK_FUNC([dlopen],

	      [lt_cv_dlopen="dlopen"],

	  [AC_CHECK_LIB([dl], [dlopen],

		[lt_cv_dlopen="dlopen" lt_cv_dlopen_libs="-ldl"],

	    [AC_CHECK_LIB([svld], [dlopen],

		  [lt_cv_dlopen="dlopen" lt_cv_dlopen_libs="-lsvld"],

	      [AC_CHECK_LIB([dld], [dld_link],

		    [lt_cv_dlopen="dld_link" lt_cv_dlopen_libs="-dld"])

	      ])

	    ])

	  ])

	])

      ])

    ;;

  esac

  if test "x$lt_cv_dlopen" != xno; then

    enable_dlopen=yes

  else

    enable_dlopen=no

  fi

  case $lt_cv_dlopen in

  dlopen)

    save_CPPFLAGS="$CPPFLAGS"

    test "x$ac_cv_header_dlfcn_h" = xyes && CPPFLAGS="$CPPFLAGS -DHAVE_DLFCN_H"

    save_LDFLAGS="$LDFLAGS"

    eval LDFLAGS=\"\$LDFLAGS $export_dynamic_flag_spec\"

    save_LIBS="$LIBS"

    LIBS="$lt_cv_dlopen_libs $LIBS"

    AC_CACHE_CHECK([whether a program can dlopen itself],

	  lt_cv_dlopen_self, [dnl

	  _LT_AC_TRY_DLOPEN_SELF(

	    lt_cv_dlopen_self=yes, lt_cv_dlopen_self=yes,

	    lt_cv_dlopen_self=no, lt_cv_dlopen_self=cross)

    ])

    if test "x$lt_cv_dlopen_self" = xyes; then

      LDFLAGS="$LDFLAGS $link_static_flag"

      AC_CACHE_CHECK([whether a statically linked program can dlopen itself],

    	  lt_cv_dlopen_self_static, [dnl

	  _LT_AC_TRY_DLOPEN_SELF(

	    lt_cv_dlopen_self_static=yes, lt_cv_dlopen_self_static=yes,

	    lt_cv_dlopen_self_static=no,  lt_cv_dlopen_self_static=cross)

      ])

    fi

    CPPFLAGS="$save_CPPFLAGS"

    LDFLAGS="$save_LDFLAGS"

    LIBS="$save_LIBS"

    ;;

  esac

  case $lt_cv_dlopen_self in

  yes|no) enable_dlopen_self=$lt_cv_dlopen_self ;;

  *) enable_dlopen_self=unknown ;;

  esac

  case $lt_cv_dlopen_self_static in

  yes|no) enable_dlopen_self_static=$lt_cv_dlopen_self_static ;;

  *) enable_dlopen_self_static=unknown ;;

  esac

fi

])# AC_LIBTOOL_DLOPEN_SELF

# AC_LIBTOOL_PROG_CC_C_O([TAGNAME])

# ---------------------------------

# Check to see if options -c and -o are simultaneously supported by compiler

AC_DEFUN([AC_LIBTOOL_PROG_CC_C_O],

[AC_REQUIRE([_LT_AC_SYS_COMPILER])dnl

AC_CACHE_CHECK([if $compiler supports -c -o file.$ac_objext],

  [_LT_AC_TAGVAR(lt_cv_prog_compiler_c_o, $1)],

  [_LT_AC_TAGVAR(lt_cv_prog_compiler_c_o, $1)=no

   $rm -r conftest 2>/dev/null

   mkdir conftest

   cd conftest

   mkdir out

   printf "$lt_simple_compile_test_code" > conftest.$ac_ext

   lt_compiler_flag="-o out/conftest2.$ac_objext"

   # Insert the option either (1) after the last *FLAGS variable, or

   # (2) before a word containing "conftest.", or (3) at the end.

   # Note that $ac_compile itself does not contain backslashes and begins

   # with a dollar sign (not a hyphen), so the echo should work correctly.

   lt_compile=`echo "$ac_compile" | $SED \

   -e 's:.*FLAGS}? :&$lt_compiler_flag :; t' \

   -e 's: [[^ ]]*conftest\.: $lt_compiler_flag&:; t' \

   -e 's:$: $lt_compiler_flag:'`

   (eval echo "\"\$as_me:__oline__: $lt_compile\"" >&AS_MESSAGE_LOG_FD)

   (eval "$lt_compile" 2>out/conftest.err)

   ac_status=$?

   cat out/conftest.err >&AS_MESSAGE_LOG_FD

   echo "$as_me:__oline__: \$? = $ac_status" >&AS_MESSAGE_LOG_FD

   if (exit $ac_status) && test -s out/conftest2.$ac_objext

   then

     # The compiler can only warn and ignore the option if not recognized

     # So say no if there are warnings

     if test ! -s out/conftest.err; then

       _LT_AC_TAGVAR(lt_cv_prog_compiler_c_o, $1)=yes

     fi

   fi

   chmod u+w .

   $rm conftest*

   # SGI C++ compiler will create directory out/ii_files/ for

   # template instantiation

   test -d out/ii_files && $rm out/ii_files/* && rmdir out/ii_files

   $rm out/* && rmdir out

   cd ..

   rmdir conftest

   $rm conftest*

])

])# AC_LIBTOOL_PROG_CC_C_O

# AC_LIBTOOL_SYS_HARD_LINK_LOCKS([TAGNAME])

# -----------------------------------------

# Check to see if we can do hard links to lock some files if needed

AC_DEFUN([AC_LIBTOOL_SYS_HARD_LINK_LOCKS],

[AC_REQUIRE([_LT_AC_LOCK])dnl

hard_links="nottested"

if test "$_LT_AC_TAGVAR(lt_cv_prog_compiler_c_o, $1)" = no && test "$need_locks" != no; then

  # do not overwrite the value of need_locks provided by the user

  AC_MSG_CHECKING([if we can lock with hard links])

  hard_links=yes

  $rm conftest*

  ln conftest.a conftest.b 2>/dev/null && hard_links=no

  touch conftest.a

  ln conftest.a conftest.b 2>&5 || hard_links=no

  ln conftest.a conftest.b 2>/dev/null && hard_links=no

  AC_MSG_RESULT([$hard_links])

  if test "$hard_links" = no; then

    AC_MSG_WARN([`$CC' does not support `-c -o', so `make -j' may be unsafe])

    need_locks=warn

  fi

else

  need_locks=no

fi

])# AC_LIBTOOL_SYS_HARD_LINK_LOCKS

# AC_LIBTOOL_OBJDIR