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## libtool.m4 - Configure libtool for the host system. -*-Shell-script-*-

## 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, 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 46 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 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_DEFUN([_AC_PROG_LIBTOOL],

[AC_REQUIRE([AC_LIBTOOL_SETUP])dnl

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

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

# Save cache, so that ltconfig can load it

AC_CACHE_SAVE

# Actually configure libtool.  ac_aux_dir is where install-sh is found.

AR="$AR" LTCC="$CC" CC="$CC" CFLAGS="$CFLAGS" CPPFLAGS="$CPPFLAGS" \

MAGIC_CMD="$MAGIC_CMD" LD="$LD" LDFLAGS="$LDFLAGS" LIBS="$LIBS" \

LN_S="$LN_S" NM="$NM" RANLIB="$RANLIB" STRIP="$STRIP" \

AS="$AS" DLLTOOL="$DLLTOOL" OBJDUMP="$OBJDUMP" \

objext="$OBJEXT" exeext="$EXEEXT" reload_flag="$reload_flag" \

deplibs_check_method="$deplibs_check_method" file_magic_cmd="$file_magic_cmd" \

${CONFIG_SHELL-/bin/sh} $ac_aux_dir/ltconfig --no-reexec \

$libtool_flags --no-verify --build="$build" $ac_aux_dir/ltmain.sh $host \

|| AC_MSG_ERROR([libtool configure failed])

# Reload cache, that may have been modified by ltconfig

AC_CACHE_LOAD

# This can be used to rebuild libtool when needed

LIBTOOL_DEPS="$ac_aux_dir/ltconfig $ac_aux_dir/ltmain.sh $ac_aux_dir/ltcf-c.sh"

# Always use our own libtool.

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

AC_SUBST(LIBTOOL)dnl

# Redirect the config.log output again, so that the ltconfig log is not

# clobbered by the next message.

exec 5>>./config.log

])

AC_DEFUN([AC_LIBTOOL_SETUP],

[AC_PREREQ(2.13)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

# 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_CHECK_TOOL(RANLIB, ranlib, :)

AC_CHECK_TOOL(STRIP, strip, :)

# Check for any special flags to pass to ltconfig.

libtool_flags="--cache-file=$cache_file"

test "$enable_shared" = no && libtool_flags="$libtool_flags --disable-shared"

test "$enable_static" = no && libtool_flags="$libtool_flags --disable-static"

test "$enable_fast_install" = no && libtool_flags="$libtool_flags --disable-fast-install"

test "$GCC" = yes && libtool_flags="$libtool_flags --with-gcc"

test "$lt_cv_prog_gnu_ld" = yes && libtool_flags="$libtool_flags --with-gnu-ld"

ifdef([AC_PROVIDE_AC_LIBTOOL_DLOPEN],

[libtool_flags="$libtool_flags --enable-dlopen"])

ifdef([AC_PROVIDE_AC_LIBTOOL_WIN32_DLL],

[libtool_flags="$libtool_flags --enable-win32-dll"])

AC_ARG_ENABLE(libtool-lock,

  [  --disable-libtool-lock  avoid locking (might break parallel builds)])

test "x$enable_libtool_lock" = xno && libtool_flags="$libtool_flags --disable-lock"

test x"$silent" = xyes && libtool_flags="$libtool_flags --silent"

AC_ARG_WITH(pic,

  [  --with-pic              try to use only PIC/non-PIC objects [default=use both]],

     pic_mode="$withval", pic_mode=default)

test x"$pic_mode" = xyes && libtool_flags="$libtool_flags --prefer-pic"

test x"$pic_mode" = xno && libtool_flags="$libtool_flags --prefer-non-pic"

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

# libtool support.

case $host in

*-*-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*

  ;;

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.o`" in

    *ELF-32*)

      HPUX_IA64_MODE="32"

      ;;

    *ELF-64*)

      HPUX_IA64_MODE="64"

      ;;

    esac

  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_SAVE

     AC_LANG_C

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

     AC_LANG_RESTORE])

  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

  ;;

ifdef([AC_PROVIDE_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)

  # recent cygwin and mingw systems supply a stub DllMain which the user

  # can override, but on older systems we have to supply one

  AC_CACHE_CHECK([if libtool should supply DllMain function], lt_cv_need_dllmain,

    [AC_TRY_LINK([],

      [extern int __attribute__((__stdcall__)) DllMain(void*, int, void*);

      DllMain (0, 0, 0);],

      [lt_cv_need_dllmain=no],[lt_cv_need_dllmain=yes])])

  case $host/$CC in

  *-*-cygwin*/gcc*-mno-cygwin*|*-*-mingw*)

    # old mingw systems require "-dll" to link a DLL, while more recent ones

    # require "-mdll"

    SAVE_CFLAGS="$CFLAGS"

    CFLAGS="$CFLAGS -mdll"

    AC_CACHE_CHECK([how to link DLLs], lt_cv_cc_dll_switch,

      [AC_TRY_LINK([], [], [lt_cv_cc_dll_switch=-mdll],[lt_cv_cc_dll_switch=-dll])])

    CFLAGS="$SAVE_CFLAGS" ;;

  *-*-cygwin* | *-*-pw32*)

    # cygwin systems need to pass --dll to the linker, and not link

    # crt.o which will require a WinMain@16 definition.

    lt_cv_cc_dll_switch="-Wl,--dll -nostartfiles" ;;

  esac

  ;;

  ])

esac

])

# 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

    ;;

  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;

    ;;

  netbsd* | freebsd* | openbsd* | darwin* | dragonfly*)

    # This has been around since 386BSD, at least.  Likely further.

    if test -x /sbin/sysctl; then

      lt_cv_sys_max_cmd_len=`/sbin/sysctl -n kern.argmax`

    elif test -x /usr/sbin/sysctl; then

      lt_cv_sys_max_cmd_len=`/usr/sbin/sysctl -n kern.argmax`

    else

      lt_cv_sys_max_cmd_len=65536 # usable default for *BSD

    fi

    # And add a safety zone

    lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 4`

    lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \* 3`

    ;;

  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

# AC_LIBTOOL_DLOPEN - enable checks for dlopen support

AC_DEFUN([AC_LIBTOOL_DLOPEN], [AC_BEFORE([$0],[AC_LIBTOOL_SETUP])])

# AC_LIBTOOL_WIN32_DLL - declare package support for building win32 dll's

AC_DEFUN([AC_LIBTOOL_WIN32_DLL], [AC_BEFORE([$0], [AC_LIBTOOL_SETUP])])

# AC_ENABLE_SHARED - implement the --enable-shared flag

# Usage: AC_ENABLE_SHARED[(DEFAULT)]

#   Where DEFAULT is either `yes' or `no'.  If omitted, it defaults to

#   `yes'.

AC_DEFUN([AC_ENABLE_SHARED],

[define([AC_ENABLE_SHARED_DEFAULT], ifelse($1, no, no, yes))dnl

AC_ARG_ENABLE(shared,

changequote(<<, >>)dnl

<<  --enable-shared[=PKGS]  build shared libraries [default=>>AC_ENABLE_SHARED_DEFAULT],

changequote([, ])dnl

[p=${PACKAGE-default}

case $enableval in

yes) enable_shared=yes ;;

no) enable_shared=no ;;

*)

  enable_shared=no

  # Look at the argument we got.  We use all the common list separators.

  IFS="${IFS=   }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"

  for pkg in $enableval; do

    if test "X$pkg" = "X$p"; then

      enable_shared=yes

    fi

  done

  IFS="$ac_save_ifs"

  ;;

esac],

enable_shared=AC_ENABLE_SHARED_DEFAULT)dnl

])

# AC_DISABLE_SHARED - set the default shared flag to --disable-shared

AC_DEFUN([AC_DISABLE_SHARED], [AC_BEFORE([$0],[AC_LIBTOOL_SETUP])dnl

AC_ENABLE_SHARED(no)])

# AC_ENABLE_STATIC - implement the --enable-static flag

# Usage: AC_ENABLE_STATIC[(DEFAULT)]

#   Where DEFAULT is either `yes' or `no'.  If omitted, it defaults to

#   `yes'.

AC_DEFUN([AC_ENABLE_STATIC],

[define([AC_ENABLE_STATIC_DEFAULT], ifelse($1, no, no, yes))dnl

AC_ARG_ENABLE(static,

changequote(<<, >>)dnl

<<  --enable-static[=PKGS]  build static libraries [default=>>AC_ENABLE_STATIC_DEFAULT],

changequote([, ])dnl

[p=${PACKAGE-default}

case $enableval in

yes) enable_static=yes ;;

no) enable_static=no ;;

*)

  enable_static=no

  # Look at the argument we got.  We use all the common list separators.

  IFS="${IFS=   }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"

  for pkg in $enableval; do

    if test "X$pkg" = "X$p"; then

      enable_static=yes

    fi

  done

  IFS="$ac_save_ifs"

  ;;

esac],

enable_static=AC_ENABLE_STATIC_DEFAULT)dnl

])

# AC_DISABLE_STATIC - set the default static flag to --disable-static

AC_DEFUN([AC_DISABLE_STATIC],

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

AC_ENABLE_STATIC(no)])

# AC_ENABLE_FAST_INSTALL - implement the --enable-fast-install flag

# Usage: AC_ENABLE_FAST_INSTALL[(DEFAULT)]

#   Where DEFAULT is either `yes' or `no'.  If omitted, it defaults to

#   `yes'.

AC_DEFUN([AC_ENABLE_FAST_INSTALL],

[define([AC_ENABLE_FAST_INSTALL_DEFAULT], ifelse($1, no, no, yes))dnl

AC_ARG_ENABLE(fast-install,

changequote(<<, >>)dnl

<<  --enable-fast-install[=PKGS]  optimize for fast installation [default=>>AC_ENABLE_FAST_INSTALL_DEFAULT],

changequote([, ])dnl

[p=${PACKAGE-default}

case $enableval in

yes) enable_fast_install=yes ;;

no) enable_fast_install=no ;;

*)

  enable_fast_install=no

  # Look at the argument we got.  We use all the common list separators.

  IFS="${IFS=   }"; ac_save_ifs="$IFS"; IFS="${IFS}:,"

  for pkg in $enableval; do

    if test "X$pkg" = "X$p"; then

      enable_fast_install=yes

    fi

  done

  IFS="$ac_save_ifs"

  ;;

esac],

enable_fast_install=AC_ENABLE_FAST_INSTALL_DEFAULT)dnl

])

# AC_DISABLE_FAST_INSTALL - set the default to --disable-fast-install

AC_DEFUN([AC_DISABLE_FAST_INSTALL],

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

AC_ENABLE_FAST_INSTALL(no)])

# AC_LIBTOOL_PICMODE - implement the --with-pic flag

# Usage: AC_LIBTOOL_PICMODE[(MODE)]

#   Where MODE is either `yes' or `no'.  If omitted, it defaults to

#   `both'.

AC_DEFUN([AC_LIBTOOL_PICMODE],

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

pic_mode=ifelse($#,1,$1,default)])

# AC_PATH_TOOL_PREFIX - find a file program which can recognise shared library

AC_DEFUN([AC_PATH_TOOL_PREFIX],

[AC_MSG_CHECKING([for $1])

AC_CACHE_VAL(lt_cv_path_MAGIC_CMD,

[case $MAGIC_CMD in

  /*)

  lt_cv_path_MAGIC_CMD="$MAGIC_CMD" # Let the user override the test with a path.

  ;;

  ?:/*)

  lt_cv_path_MAGIC_CMD="$MAGIC_CMD" # Let the user override the test with a dos path.

  ;;

  *)

  ac_save_MAGIC_CMD="$MAGIC_CMD"

  IFS="${IFS=   }"; ac_save_ifs="$IFS"; IFS=":"

dnl $ac_dummy forces splitting on constant user-supplied paths.

dnl POSIX.2 word splitting is done only on the output of word expansions,

dnl not every word.  This closes a longstanding sh security hole.

  ac_dummy="ifelse([$2], , $PATH, [$2])"

  for ac_dir in $ac_dummy; do

    test -z "$ac_dir" && ac_dir=.

    if test -f $ac_dir/$1; then

      lt_cv_path_MAGIC_CMD="$ac_dir/$1"

      if test -n "$file_magic_test_file"; then

        case $deplibs_check_method in

        "file_magic "*)

          file_magic_regex="`expr \"$deplibs_check_method\" : \"file_magic \(.*\)\"`"

          MAGIC_CMD="$lt_cv_path_MAGIC_CMD"

          if eval $file_magic_cmd \$file_magic_test_file 2> /dev/null |

            egrep "$file_magic_regex" > /dev/null; then

            :

          else

            cat <<EOF 1>&2

*** Warning: the command libtool uses to detect shared libraries,

*** $file_magic_cmd, produces output that libtool cannot recognize.

*** The result is that libtool may fail to recognize shared libraries

*** as such.  This will affect the creation of libtool libraries that

*** depend on shared libraries, but programs linked with such libtool

*** libraries will work regardless of this problem.  Nevertheless, you

*** may want to report the problem to your system manager and/or to

*** bug-libtool@gnu.org

EOF

          fi ;;

        esac

      fi

      break

    fi

  done

  IFS="$ac_save_ifs"

  MAGIC_CMD="$ac_save_MAGIC_CMD"

  ;;

esac])

MAGIC_CMD="$lt_cv_path_MAGIC_CMD"

if test -n "$MAGIC_CMD"; then

  AC_MSG_RESULT($MAGIC_CMD)

else

  AC_MSG_RESULT(no)

fi

])

# AC_PATH_MAGIC - find a file program which can recognise a shared library

AC_DEFUN([AC_PATH_MAGIC],

[AC_REQUIRE([AC_CHECK_TOOL_PREFIX])dnl

AC_PATH_TOOL_PREFIX(${ac_tool_prefix}file, /usr/bin:$PATH)

if test -z "$lt_cv_path_MAGIC_CMD"; then

  if test -n "$ac_tool_prefix"; then

    AC_PATH_TOOL_PREFIX(file, /usr/bin:$PATH)

  else

    MAGIC_CMD=:

  fi

fi

])

# AC_PROG_LD - find the path to the GNU or non-GNU linker

AC_DEFUN([AC_PROG_LD],

[AC_ARG_WITH(gnu-ld,

[  --with-gnu-ld           assume the C compiler uses GNU ld [default=no]],

test "$withval" = no || with_gnu_ld=yes, with_gnu_ld=no)

AC_REQUIRE([AC_PROG_CC])dnl

AC_REQUIRE([AC_CANONICAL_HOST])dnl

AC_REQUIRE([AC_CANONICAL_BUILD])dnl

ac_prog=ld

if test "$GCC" = yes; then

  # Check if gcc -print-prog-name=ld gives a path.

  AC_MSG_CHECKING([for ld used by GCC])

  case $host in

  *-*-mingw*)

    # gcc leaves a trailing carriage return which upsets mingw

    ac_prog=`($CC -print-prog-name=ld) 2>&5 | tr -d '\015'` ;;

  *)

    ac_prog=`($CC -print-prog-name=ld) 2>&5` ;;

  esac

  case $ac_prog in

    # Accept absolute paths.

    [[\\/]* | [A-Za-z]:[\\/]*)]

      re_direlt=['/[^/][^/]*/\.\./']

      # Canonicalize the path of ld

      ac_prog=`echo $ac_prog| sed 's%\\\\%/%g'`

      while echo $ac_prog | grep "$re_direlt" > /dev/null 2>&1; do

        ac_prog=`echo $ac_prog| sed "s%$re_direlt%/%"`

      done

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

      ;;

  "")

    # If it fails, then pretend we aren't using GCC.

    ac_prog=ld

    ;;

  *)

    # If it is relative, then search for the first ld in PATH.

    with_gnu_ld=unknown

    ;;

  esac

elif test "$with_gnu_ld" = yes; then

  AC_MSG_CHECKING([for GNU ld])

else

  AC_MSG_CHECKING([for non-GNU ld])

fi

AC_CACHE_VAL(lt_cv_path_LD,

[if test -z "$LD"; then

  IFS="${IFS=   }"; ac_save_ifs="$IFS"; IFS="${IFS}${PATH_SEPARATOR-:}"

  for ac_dir in $PATH; do

    test -z "$ac_dir" && ac_dir=.

    if test -f "$ac_dir/$ac_prog" || test -f "$ac_dir/$ac_prog$ac_exeext"; then

      lt_cv_path_LD="$ac_dir/$ac_prog"

      # Check to see if the program is GNU ld.  I'd rather use --version,

      # but apparently some GNU ld's only accept -v.

      # Break only if it was the GNU/non-GNU ld that we prefer.

      if "$lt_cv_path_LD" -v 2>&1 < /dev/null | egrep '(GNU|with BFD)' > /dev/null; then

        test "$with_gnu_ld" != no && break

      else

        test "$with_gnu_ld" != yes && break

      fi

    fi

  done

  IFS="$ac_save_ifs"

else

  lt_cv_path_LD="$LD" # Let the user override the test with a path.

fi])

LD="$lt_cv_path_LD"

if test -n "$LD"; then

  AC_MSG_RESULT($LD)

else

  AC_MSG_RESULT(no)

fi

test -z "$LD" && AC_MSG_ERROR([no acceptable ld found in \$PATH])

AC_PROG_LD_GNU

])

AC_DEFUN([AC_PROG_LD_GNU],

[AC_CACHE_CHECK([if the linker ($LD) is GNU ld], lt_cv_prog_gnu_ld,

[# I'd rather use --version here, but apparently some GNU ld's only accept -v.

if $LD -v 2>&1 </dev/null | egrep '(GNU|with BFD)' 1>&5; then

  lt_cv_prog_gnu_ld=yes

else

  lt_cv_prog_gnu_ld=no

fi])

with_gnu_ld=$lt_cv_prog_gnu_ld

])

# AC_PROG_LD_RELOAD_FLAG - find reload flag for linker

#   -- PORTME Some linkers may need a different reload flag.

AC_DEFUN([AC_PROG_LD_RELOAD_FLAG],

[AC_CACHE_CHECK([for $LD option to reload object files], lt_cv_ld_reload_flag,

[lt_cv_ld_reload_flag='-r'])

reload_flag=$lt_cv_ld_reload_flag

test -n "$reload_flag" && reload_flag=" $reload_flag"

])

# AC_DEPLIBS_CHECK_METHOD - how to check for library dependencies

#  -- PORTME fill in with the dynamic library characteristics

AC_DEFUN([AC_DEPLIBS_CHECK_METHOD],

[AC_CACHE_CHECK([how to recognise dependant libraries],

lt_cv_deplibs_check_method,

[lt_cv_file_magic_cmd='$MAGIC_CMD'

lt_cv_file_magic_test_file=

lt_cv_deplibs_check_method='unknown'

# Need to set the preceding variable on all platforms that support

# interlibrary dependencies.

# 'none' -- dependencies not supported.

# `unknown' -- same as none, but documents that we really don't know.

# 'pass_all' -- all dependencies passed with no checks.

# 'test_compile' -- check by making test program.

# 'file_magic [regex]' -- check by looking for files in library path

# which responds to the $file_magic_cmd with a given egrep regex.

# If you have `file' or equivalent on your system and you're not sure

# whether `pass_all' will *always* work, you probably want this one.

case $host_os in

aix*)

  lt_cv_deplibs_check_method=pass_all

  ;;

beos*)

  lt_cv_deplibs_check_method=pass_all

  ;;

bsdi4*)

  lt_cv_deplibs_check_method=['file_magic ELF [0-9][0-9]*-bit [ML]SB (shared object|dynamic lib)']

  lt_cv_file_magic_cmd='/usr/bin/file -L'

  lt_cv_file_magic_test_file=/shlib/libc.so

  ;;

cygwin* | mingw* |pw32*)

  lt_cv_deplibs_check_method='file_magic file format pei*-i386(.*architecture: i386)?'

  lt_cv_file_magic_cmd='$OBJDUMP -f'

  ;;

darwin* | rhapsody*)

  # this will be overwritten by pass_all, but leave it in just in case

  lt_cv_deplibs_check_method='file_magic Mach-O dynamically linked shared library'

  lt_cv_file_magic_cmd='/usr/bin/file -L'

  case "$host_os" in

  rhapsody* | darwin1.[012])

    lt_cv_file_magic_test_file='/System/Library/Frameworks/System.framework/System'

    ;;

  *) # Darwin 1.3 on

    lt_cv_file_magic_test_file='/usr/lib/libSystem.dylib'

    ;;

  esac

  lt_cv_deplibs_check_method=pass_all

  ;;

freebsd* | kfreebsd*-gnu)

  if echo __ELF__ | $CC -E - | grep __ELF__ > /dev/null; then

    case $host_cpu in

    i*86 )

      # Not sure whether the presence of OpenBSD here was a mistake.

      # Let's accept both of them until this is cleared up.

      lt_cv_deplibs_check_method=['file_magic (FreeBSD|OpenBSD)/i[3-9]86 (compact )?demand paged shared library']

      lt_cv_file_magic_cmd=/usr/bin/file

      lt_cv_file_magic_test_file=`echo /usr/lib/libc.so.*`

      ;;

    esac

  else

    lt_cv_deplibs_check_method=pass_all

  fi

  ;;

gnu*)

  lt_cv_deplibs_check_method=pass_all

  ;;

hpux10.20*|hpux11*)

  case $host_cpu in

  hppa*)

    [lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|PA-RISC[0-9].[0-9]) shared library']

    lt_cv_file_magic_cmd=/usr/bin/file

    lt_cv_file_magic_test_file=/usr/lib/libc.sl

    ;;

  ia64*)

    [lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|ELF-[0-9][0-9]) shared object file - IA64']

    lt_cv_file_magic_cmd=/usr/bin/file

    lt_cv_file_magic_test_file=/usr/lib/hpux32/libc.so

    ;;

  esac

  ;;

irix5* | irix6*)

  case $host_os in

  irix5*)

    # this will be overridden with pass_all, but let us keep it just in case

    lt_cv_deplibs_check_method="file_magic ELF 32-bit MSB dynamic lib MIPS - version 1"

    ;;

  *)

    case $LD in

    *-32|*"-32 ") libmagic=32-bit;;

    *-n32|*"-n32 ") libmagic=N32;;

    *-64|*"-64 ") libmagic=64-bit;;

    *) libmagic=never-match;;

    esac

    # this will be overridden with pass_all, but let us keep it just in case

    lt_cv_deplibs_check_method=["file_magic ELF ${libmagic} MSB mips-[1234] dynamic lib MIPS - version 1"]

    ;;

  esac

  lt_cv_file_magic_test_file=`echo /lib${libsuff}/libc.so*`

  lt_cv_deplibs_check_method=pass_all

  ;;

# This must be Linux ELF.

linux-gnu*)

  lt_cv_deplibs_check_method=pass_all

  ;;

netbsd* | knetbsd*-gnu)

  if echo __ELF__ | $CC -E - | grep __ELF__ > /dev/null; then

    [lt_cv_deplibs_check_method='match_pattern /lib[^/\.]+\.so\.[0-9]+\.[0-9]+$']

  else

    [lt_cv_deplibs_check_method='match_pattern /lib[^/\.]+\.so$']

  fi

  ;;

newsos6)

  [lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [ML]SB (executable|dynamic lib)']

  lt_cv_file_magic_cmd=/usr/bin/file

  lt_cv_file_magic_test_file=/usr/lib/libnls.so

  ;;

osf3* | osf4* | osf5*)

  # this will be overridden with pass_all, but let us keep it just in case

  lt_cv_deplibs_check_method='file_magic COFF format alpha shared library'

  lt_cv_file_magic_test_file=/shlib/libc.so

  lt_cv_deplibs_check_method=pass_all

  ;;

sco3.2v5*)

  lt_cv_deplibs_check_method=pass_all

  ;;

solaris*)

  lt_cv_deplibs_check_method=pass_all

  lt_cv_file_magic_test_file=/lib/libc.so

  ;;

[sysv5uw[78]* | sysv4*uw2*)]

  lt_cv_deplibs_check_method=pass_all

  ;;

sysv4 | sysv4.2uw2* | sysv4.3* | sysv5*)

  case $host_vendor in

  ncr)

    lt_cv_deplibs_check_method=pass_all

    ;;

  motorola)

    lt_cv_deplibs_check_method=['file_magic ELF [0-9][0-9]*-bit [ML]SB (shared object|dynamic lib) M[0-9][0-9]* Version [0-9]']

    lt_cv_file_magic_test_file=`echo /usr/lib/libc.so*`

    ;;

  esac

  ;;

esac

])

file_magic_cmd=$lt_cv_file_magic_cmd

deplibs_check_method=$lt_cv_deplibs_check_method

])

# AC_PROG_NM - find the path to a BSD-compatible name lister

AC_DEFUN([AC_PROG_NM],

[AC_MSG_CHECKING([for BSD-compatible nm])

AC_CACHE_VAL(lt_cv_path_NM,

[if test -n "$NM"; then

  # Let the user override the test.

  lt_cv_path_NM="$NM"

else

  IFS="${IFS=   }"; ac_save_ifs="$IFS"; IFS="${IFS}${PATH_SEPARATOR-:}"

  for ac_dir in $PATH /usr/ccs/bin /usr/ucb /bin; do

    test -z "$ac_dir" && ac_dir=.

    tmp_nm=$ac_dir/${ac_tool_prefix}nm

    if test -f $tmp_nm || test -f $tmp_nm$ac_exeext ; then

      # Check to see if the nm accepts a BSD-compat flag.

      # Adding the `sed 1q' prevents false positives on HP-UX, which says:

      #   nm: unknown option "B" ignored

      # Tru64's nm complains that /dev/null is an invalid object file

      if ($tmp_nm -B /dev/null 2>&1 | sed '1q'; exit 0) | egrep '(/dev/null|Invalid file or object type)' >/dev/null; then

        lt_cv_path_NM="$tmp_nm -B"

        break

      elif ($tmp_nm -p /dev/null 2>&1 | sed '1q'; exit 0) | egrep /dev/null >/dev/null; then

        lt_cv_path_NM="$tmp_nm -p"

        break

      else

        lt_cv_path_NM=${lt_cv_path_NM="$tmp_nm"} # keep the first match, but

        continue # so that we can try to find one that supports BSD flags

      fi

    fi

  done

  IFS="$ac_save_ifs"

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

fi])

NM="$lt_cv_path_NM"

AC_MSG_RESULT([$NM])

])

# AC_CHECK_LIBM - check for math library

AC_DEFUN([AC_CHECK_LIBM],

[AC_REQUIRE([AC_CANONICAL_HOST])dnl

LIBM=

case $host in

*-*-beos* | *-*-cygwin* | *-*-pw32* | *-*-darwin*)

  # These system don't have libm

  # on darwin the libm is a symbolic link to libSystem.dylib

  ;;

*-ncr-sysv4.3*)

  AC_CHECK_LIB(mw, _mwvalidcheckl, LIBM="-lmw")

  AC_CHECK_LIB(m, main, LIBM="$LIBM -lm")

  ;;

*)

  AC_CHECK_LIB(m, main, LIBM="-lm")

  ;;

esac

])

# AC_LIBLTDL_CONVENIENCE[(dir)] - sets LIBLTDL to the link flags for

# the libltdl convenience library and INCLTDL to the include flags for

# the libltdl header and adds --enable-ltdl-convenience to the

# configure arguments.  Note that LIBLTDL and INCLTDL are not

# AC_SUBSTed, nor is AC_CONFIG_SUBDIRS called.  If DIR is not

# provided, it is assumed to be `libltdl'.  LIBLTDL will be prefixed

# with '${top_builddir}/' and INCLTDL will be prefixed with

# '${top_srcdir}/' (note the single quotes!).  If your package is not

# flat and you're not using automake, define top_builddir and

# top_srcdir appropriately in the Makefiles.

AC_DEFUN([AC_LIBLTDL_CONVENIENCE],

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

  case $enable_ltdl_convenience in

  no) AC_MSG_ERROR([this package needs a convenience libltdl]) ;;

  "") enable_ltdl_convenience=yes

      ac_configure_args="$ac_configure_args --enable-ltdl-convenience" ;;

  esac

  LIBLTDL='${top_builddir}/'ifelse($#,1,[$1],['libltdl'])/libltdlc.la

  INCLTDL='-I${top_srcdir}/'ifelse($#,1,[$1],['libltdl'])

])

# AC_LIBLTDL_INSTALLABLE[(dir)] - sets LIBLTDL to the link flags for

# the libltdl installable library and INCLTDL to the include flags for

# the libltdl header and adds --enable-ltdl-install to the configure

# arguments.  Note that LIBLTDL and INCLTDL are not AC_SUBSTed, nor is

# AC_CONFIG_SUBDIRS called.  If DIR is not provided and an installed

# libltdl is not found, it is assumed to be `libltdl'.  LIBLTDL will

# be prefixed with '${top_builddir}/' and INCLTDL will be prefixed

# with '${top_srcdir}/' (note the single quotes!).  If your package is

# not flat and you're not using automake, define top_builddir and

# top_srcdir appropriately in the Makefiles.

# In the future, this macro may have to be called after AC_PROG_LIBTOOL.

AC_DEFUN([AC_LIBLTDL_INSTALLABLE],

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

  AC_CHECK_LIB(ltdl, main,

  [test x"$enable_ltdl_install" != xyes && enable_ltdl_install=no],

  [if test x"$enable_ltdl_install" = xno; then

     AC_MSG_WARN([libltdl not installed, but installation disabled])

   else

     enable_ltdl_install=yes

   fi

  ])

  if test x"$enable_ltdl_install" = x"yes"; then

    ac_configure_args="$ac_configure_args --enable-ltdl-install"

    LIBLTDL='${top_builddir}/'ifelse($#,1,[$1],['libltdl'])/libltdl.la

    INCLTDL='-I${top_srcdir}/'ifelse($#,1,[$1],['libltdl'])

  else

    ac_configure_args="$ac_configure_args --enable-ltdl-install=no"

    LIBLTDL="-lltdl"

    INCLTDL=

  fi

])

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

ifdef([AC_PROVIDE_IFELSE],

      [],

      [define([AC_PROVIDE_IFELSE],

              [ifdef([AC_PROVIDE_$1],

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

# AC_LIBTOOL_CXX - enable support for C++ libraries

AC_DEFUN([AC_LIBTOOL_CXX], [AC_REQUIRE([_AC_LIBTOOL_CXX])])

AC_DEFUN([_AC_LIBTOOL_CXX],

[AC_REQUIRE([AC_PROG_CXX])

AC_REQUIRE([AC_PROG_CXXCPP])

LIBTOOL_DEPS=$LIBTOOL_DEPS" $ac_aux_dir/ltcf-cxx.sh"

lt_save_CC="$CC"

lt_save_CFLAGS="$CFLAGS"

dnl Make sure LTCC is set to the C compiler, i.e. set LTCC before CC

dnl is set to the C++ compiler.

AR="$AR" LTCC="$CC" CC="$CXX" CXX="$CXX" CFLAGS="$CXXFLAGS" CPPFLAGS="$CPPFLAGS" \

MAGIC_CMD="$MAGIC_CMD" LD="$LD" LDFLAGS="$LDFLAGS" LIBS="$LIBS" \

LN_S="$LN_S" NM="$NM" RANLIB="$RANLIB" STRIP="$STRIP" \

AS="$AS" DLLTOOL="$DLLTOOL" OBJDUMP="$OBJDUMP" \

objext="$OBJEXT" exeext="$EXEEXT" reload_flag="$reload_flag" \

deplibs_check_method="$deplibs_check_method" \

file_magic_cmd="$file_magic_cmd" \

${CONFIG_SHELL-/bin/sh} $ac_aux_dir/ltconfig -o libtool $libtool_flags \

--build="$build" --add-tag=CXX $ac_aux_dir/ltcf-cxx.sh $host \

|| AC_MSG_ERROR([libtool tag configuration failed])

CC="$lt_save_CC"

CFLAGS="$lt_save_CFLAGS"

# Redirect the config.log output again, so that the ltconfig log is not

# clobbered by the next message.

exec 5>>./config.log

])