libtool.m4

    save_LIBS=$LIBS
    LIBS="$lt_cv_dlopen_libs $LIBS"

    AC_CACHE_CHECK([whether a program can dlopen itself],
	  lt_cv_dlopen_self, [dnl
	  _LT_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 yes = "$lt_cv_dlopen_self"; then
      wl=$lt_prog_compiler_wl eval LDFLAGS=\"\$LDFLAGS $lt_prog_compiler_static\"
      AC_CACHE_CHECK([whether a statically linked program can dlopen itself],
	  lt_cv_dlopen_self_static, [dnl
	  _LT_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
_LT_DECL([dlopen_support], [enable_dlopen], [0],
	 [Whether dlopen is supported])
_LT_DECL([dlopen_self], [enable_dlopen_self], [0],
	 [Whether dlopen of programs is supported])
_LT_DECL([dlopen_self_static], [enable_dlopen_self_static], [0],
	 [Whether dlopen of statically linked programs is supported])
])# LT_SYS_DLOPEN_SELF

# Old name:
AU_ALIAS([AC_LIBTOOL_DLOPEN_SELF], [LT_SYS_DLOPEN_SELF])
dnl aclocal-1.4 backwards compatibility:
dnl AC_DEFUN([AC_LIBTOOL_DLOPEN_SELF], [])


# _LT_COMPILER_C_O([TAGNAME])
# ---------------------------
# Check to see if options -c and -o are simultaneously supported by compiler.
# This macro does not hard code the compiler like AC_PROG_CC_C_O.
m4_defun([_LT_COMPILER_C_O],
[m4_require([_LT_DECL_SED])dnl
m4_require([_LT_FILEUTILS_DEFAULTS])dnl
m4_require([_LT_TAG_COMPILER])dnl
AC_CACHE_CHECK([if $compiler supports -c -o file.$ac_objext],
  [_LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)],
  [_LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)=no
   $RM -r conftest 2>/dev/null
   mkdir conftest
   cd conftest
   mkdir out
   echo "$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" | $SED \
   -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
   -e 's: [[^ ]]*conftest\.: $lt_compiler_flag&:; t' \
   -e 's:$: $lt_compiler_flag:'`
   (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&AS_MESSAGE_LOG_FD)
   (eval "$lt_compile" 2>out/conftest.err)
   ac_status=$?
   cat out/conftest.err >&AS_MESSAGE_LOG_FD
   echo "$as_me:$LINENO: \$? = $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
     $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' > out/conftest.exp
     $SED '/^$/d; /^ *+/d' out/conftest.err >out/conftest.er2
     if test ! -s out/conftest.er2 || diff out/conftest.exp out/conftest.er2 >/dev/null; then
       _LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)=yes
     fi
   fi
   chmod u+w . 2>&AS_MESSAGE_LOG_FD
   $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 ..
   $RM -r conftest
   $RM conftest*
])
_LT_TAGDECL([compiler_c_o], [lt_cv_prog_compiler_c_o], [1],
	[Does compiler simultaneously support -c and -o options?])
])# _LT_COMPILER_C_O


# _LT_COMPILER_FILE_LOCKS([TAGNAME])
# ----------------------------------
# Check to see if we can do hard links to lock some files if needed
m4_defun([_LT_COMPILER_FILE_LOCKS],
[m4_require([_LT_ENABLE_LOCK])dnl
m4_require([_LT_FILEUTILS_DEFAULTS])dnl
_LT_COMPILER_C_O([$1])

hard_links=nottested
if test no = "$_LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)" && test no != "$need_locks"; 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 no = "$hard_links"; then
    AC_MSG_WARN(['$CC' does not support '-c -o', so 'make -j' may be unsafe])
    need_locks=warn
  fi
else
  need_locks=no
fi
_LT_DECL([], [need_locks], [1], [Must we lock files when doing compilation?])
])# _LT_COMPILER_FILE_LOCKS


# _LT_CHECK_OBJDIR
# ----------------
m4_defun([_LT_CHECK_OBJDIR],
[AC_CACHE_CHECK([for objdir], [lt_cv_objdir],
[rm -f .libs 2>/dev/null
mkdir .libs 2>/dev/null
if test -d .libs; then
  lt_cv_objdir=.libs
else
  # MS-DOS does not allow filenames that begin with a dot.
  lt_cv_objdir=_libs
fi
rmdir .libs 2>/dev/null])
objdir=$lt_cv_objdir
_LT_DECL([], [objdir], [0],
         [The name of the directory that contains temporary libtool files])dnl
m4_pattern_allow([LT_OBJDIR])dnl
AC_DEFINE_UNQUOTED([LT_OBJDIR], "$lt_cv_objdir/",
  [Define to the sub-directory where libtool stores uninstalled libraries.])
])# _LT_CHECK_OBJDIR


# _LT_LINKER_HARDCODE_LIBPATH([TAGNAME])
# --------------------------------------
# Check hardcoding attributes.
m4_defun([_LT_LINKER_HARDCODE_LIBPATH],
[AC_MSG_CHECKING([how to hardcode library paths into programs])
_LT_TAGVAR(hardcode_action, $1)=
if test -n "$_LT_TAGVAR(hardcode_libdir_flag_spec, $1)" ||
   test -n "$_LT_TAGVAR(runpath_var, $1)" ||
   test yes = "$_LT_TAGVAR(hardcode_automatic, $1)"; then

  # We can hardcode non-existent directories.
  if test no != "$_LT_TAGVAR(hardcode_direct, $1)" &&
     # If the only mechanism to avoid hardcoding is shlibpath_var, we
     # have to relink, otherwise we might link with an installed library
     # when we should be linking with a yet-to-be-installed one
     ## test no != "$_LT_TAGVAR(hardcode_shlibpath_var, $1)" &&
     test no != "$_LT_TAGVAR(hardcode_minus_L, $1)"; then
    # Linking always hardcodes the temporary library directory.
    _LT_TAGVAR(hardcode_action, $1)=relink
  else
    # We can link without hardcoding, and we can hardcode nonexisting dirs.
    _LT_TAGVAR(hardcode_action, $1)=immediate
  fi
else
  # We cannot hardcode anything, or else we can only hardcode existing
  # directories.
  _LT_TAGVAR(hardcode_action, $1)=unsupported
fi
AC_MSG_RESULT([$_LT_TAGVAR(hardcode_action, $1)])

if test relink = "$_LT_TAGVAR(hardcode_action, $1)" ||
   test yes = "$_LT_TAGVAR(inherit_rpath, $1)"; then
  # Fast installation is not supported
  enable_fast_install=no
elif test yes = "$shlibpath_overrides_runpath" ||
     test no = "$enable_shared"; then
  # Fast installation is not necessary
  enable_fast_install=needless
fi
_LT_TAGDECL([], [hardcode_action], [0],
    [How to hardcode a shared library path into an executable])
])# _LT_LINKER_HARDCODE_LIBPATH


# _LT_CMD_STRIPLIB
# ----------------
m4_defun([_LT_CMD_STRIPLIB],
[m4_require([_LT_DECL_EGREP])
striplib=
old_striplib=
AC_MSG_CHECKING([whether stripping libraries is possible])
if test -n "$STRIP" && $STRIP -V 2>&1 | $GREP "GNU strip" >/dev/null; then
  test -z "$old_striplib" && old_striplib="$STRIP --strip-debug"
  test -z "$striplib" && striplib="$STRIP --strip-unneeded"
  AC_MSG_RESULT([yes])
else
# FIXME - insert some real tests, host_os isn't really good enough
  case $host_os in
  darwin*)
    if test -n "$STRIP"; then
      striplib="$STRIP -x"
      old_striplib="$STRIP -S"
      AC_MSG_RESULT([yes])
    else
      AC_MSG_RESULT([no])
    fi
    ;;
  *)
    AC_MSG_RESULT([no])
    ;;
  esac
fi
_LT_DECL([], [old_striplib], [1], [Commands to strip libraries])
_LT_DECL([], [striplib], [1])
])# _LT_CMD_STRIPLIB


# _LT_PREPARE_MUNGE_PATH_LIST
# ---------------------------
# Make sure func_munge_path_list() is defined correctly.
m4_defun([_LT_PREPARE_MUNGE_PATH_LIST],
[[# func_munge_path_list VARIABLE PATH
# -----------------------------------
# VARIABLE is name of variable containing _space_ separated list of
# directories to be munged by the contents of PATH, which is string
# having a format:
# "DIR[:DIR]:"
#       string "DIR[ DIR]" will be prepended to VARIABLE
# ":DIR[:DIR]"
#       string "DIR[ DIR]" will be appended to VARIABLE
# "DIRP[:DIRP]::[DIRA:]DIRA"
#       string "DIRP[ DIRP]" will be prepended to VARIABLE and string
#       "DIRA[ DIRA]" will be appended to VARIABLE
# "DIR[:DIR]"
#       VARIABLE will be replaced by "DIR[ DIR]"
func_munge_path_list ()
{
    case x@S|@2 in
    x)
        ;;
    *:)
        eval @S|@1=\"`$ECHO @S|@2 | $SED 's/:/ /g'` \@S|@@S|@1\"
        ;;
    x:*)
        eval @S|@1=\"\@S|@@S|@1 `$ECHO @S|@2 | $SED 's/:/ /g'`\"
        ;;
    *::*)
        eval @S|@1=\"\@S|@@S|@1\ `$ECHO @S|@2 | $SED -e 's/.*:://' -e 's/:/ /g'`\"
        eval @S|@1=\"`$ECHO @S|@2 | $SED -e 's/::.*//' -e 's/:/ /g'`\ \@S|@@S|@1\"
        ;;
    *)
        eval @S|@1=\"`$ECHO @S|@2 | $SED 's/:/ /g'`\"
        ;;
    esac
}
]])# _LT_PREPARE_PATH_LIST


# _LT_SYS_DYNAMIC_LINKER([TAG])
# -----------------------------
# PORTME Fill in your ld.so characteristics
m4_defun([_LT_SYS_DYNAMIC_LINKER],
[AC_REQUIRE([AC_CANONICAL_HOST])dnl
m4_require([_LT_DECL_EGREP])dnl
m4_require([_LT_FILEUTILS_DEFAULTS])dnl
m4_require([_LT_DECL_OBJDUMP])dnl
m4_require([_LT_DECL_SED])dnl
m4_require([_LT_CHECK_SHELL_FEATURES])dnl
m4_require([_LT_PREPARE_MUNGE_PATH_LIST])dnl
AC_MSG_CHECKING([dynamic linker characteristics])
m4_if([$1],
	[], [
if test yes = "$GCC"; then
  case $host_os in
    darwin*) lt_awk_arg='/^libraries:/,/LR/' ;;
    *) lt_awk_arg='/^libraries:/' ;;
  esac
  case $host_os in
    mingw* | cegcc*) lt_sed_strip_eq='s|=\([[A-Za-z]]:\)|\1|g' ;;
    *) lt_sed_strip_eq='s|=/|/|g' ;;
  esac
  lt_search_path_spec=`$CC -print-search-dirs | awk $lt_awk_arg | $SED -e "s/^libraries://" -e $lt_sed_strip_eq`
  case $lt_search_path_spec in
  *\;*)
    # if the path contains ";" then we assume it to be the separator
    # otherwise default to the standard path separator (i.e. ":") - it is
    # assumed that no part of a normal pathname contains ";" but that should
    # okay in the real world where ";" in dirpaths is itself problematic.
    lt_search_path_spec=`$ECHO "$lt_search_path_spec" | $SED 's/;/ /g'`
    ;;
  *)
    lt_search_path_spec=`$ECHO "$lt_search_path_spec" | $SED "s/$PATH_SEPARATOR/ /g"`
    ;;
  esac
  # Ok, now we have the path, separated by spaces, we can step through it
  # and add multilib dir if necessary...
  lt_tmp_lt_search_path_spec=
  lt_multi_os_dir=/`$CC $CPPFLAGS $CFLAGS $LDFLAGS -print-multi-os-directory 2>/dev/null`
  # ...but if some path component already ends with the multilib dir we assume
  # that all is fine and trust -print-search-dirs as is (GCC 4.2? or newer).
  case "$lt_multi_os_dir; $lt_search_path_spec " in
  "/; "* | "/.; "* | "/./; "* | *"$lt_multi_os_dir "* | *"$lt_multi_os_dir/ "*)
    lt_multi_os_dir=
    ;;
  esac
  for lt_sys_path in $lt_search_path_spec; do
    if test -d "$lt_sys_path$lt_multi_os_dir"; then
      lt_tmp_lt_search_path_spec="$lt_tmp_lt_search_path_spec $lt_sys_path$lt_multi_os_dir"
    elif test -n "$lt_multi_os_dir"; then
      test -d "$lt_sys_path" && \
	lt_tmp_lt_search_path_spec="$lt_tmp_lt_search_path_spec $lt_sys_path"
    fi
  done
  lt_search_path_spec=`$ECHO "$lt_tmp_lt_search_path_spec" | awk '
BEGIN {RS = " "; FS = "/|\n";} {
  lt_foo = "";
  lt_count = 0;
  for (lt_i = NF; lt_i > 0; lt_i--) {
    if ($lt_i != "" && $lt_i != ".") {
      if ($lt_i == "..") {
        lt_count++;
      } else {
        if (lt_count == 0) {
          lt_foo = "/" $lt_i lt_foo;
        } else {
          lt_count--;
        }
      }
    }
  }
  if (lt_foo != "") { lt_freq[[lt_foo]]++; }
  if (lt_freq[[lt_foo]] == 1) { print lt_foo; }
}'`
  # AWK program above erroneously prepends '/' to C:/dos/paths
  # for these hosts.
  case $host_os in
    mingw* | cegcc*) lt_search_path_spec=`$ECHO "$lt_search_path_spec" |\
      $SED 's|/\([[A-Za-z]]:\)|\1|g'` ;;
  esac
  sys_lib_search_path_spec=`$ECHO "$lt_search_path_spec" | $lt_NL2SP`
else
  sys_lib_search_path_spec="/lib /usr/lib /usr/local/lib"
fi])
library_names_spec=
libname_spec='lib$name'
soname_spec=
shrext_cmds=.so
postinstall_cmds=
postuninstall_cmds=
finish_cmds=
finish_eval=
shlibpath_var=
shlibpath_overrides_runpath=unknown
version_type=none
dynamic_linker="$host_os ld.so"
sys_lib_dlsearch_path_spec="/lib /usr/lib"
need_lib_prefix=unknown
hardcode_into_libs=no

# when you set need_version to no, make sure it does not cause -set_version
# flags to be left without arguments
need_version=unknown

AC_ARG_VAR([LT_SYS_LIBRARY_PATH],
[User-defined run-time library search path.])

case $host_os in
aix3*)
  version_type=linux # correct to gnu/linux during the next big refactor
  library_names_spec='$libname$release$shared_ext$versuffix $libname.a'
  shlibpath_var=LIBPATH

  # AIX 3 has no versioning support, so we append a major version to the name.
  soname_spec='$libname$release$shared_ext$major'
  ;;

aix[[4-9]]*)
  version_type=linux # correct to gnu/linux during the next big refactor
  need_lib_prefix=no
  need_version=no
  hardcode_into_libs=yes
  if test ia64 = "$host_cpu"; then
    # AIX 5 supports IA64
    library_names_spec='$libname$release$shared_ext$major $libname$release$shared_ext$versuffix $libname$shared_ext'
    shlibpath_var=LD_LIBRARY_PATH
  else
    # With GCC up to 2.95.x, collect2 would create an import file
    # for dependence libraries.  The import file would start with
    # the line '#! .'.  This would cause the generated library to
    # depend on '.', always an invalid library.  This was fixed in
    # development snapshots of GCC prior to 3.0.
    case $host_os in
      aix4 | aix4.[[01]] | aix4.[[01]].*)
      if { echo '#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 97)'
	   echo ' yes '
	   echo '#endif'; } | $CC -E - | $GREP yes > /dev/null; then
	:
      else
	can_build_shared=no
      fi
      ;;
    esac
    # Using Import Files as archive members, it is possible to support
    # filename-based versioning of shared library archives on AIX. While
    # this would work for both with and without runtime linking, it will
    # prevent static linking of such archives. So we do filename-based
    # shared library versioning with .so extension only, which is used
    # when both runtime linking and shared linking is enabled.
    # Unfortunately, runtime linking may impact performance, so we do
    # not want this to be the default eventually. Also, we use the
    # versioned .so libs for executables only if there is the -brtl
    # linker flag in LDFLAGS as well, or --with-aix-soname=svr4 only.
    # To allow for filename-based versioning support, we need to create
    # libNAME.so.V as an archive file, containing:
    # *) an Import File, referring to the versioned filename of the
    #    archive as well as the shared archive member, telling the
    #    bitwidth (32 or 64) of that shared object, and providing the
    #    list of exported symbols of that shared object, eventually
    #    decorated with the 'weak' keyword
    # *) the shared object with the F_LOADONLY flag set, to really avoid
    #    it being seen by the linker.
    # At run time we better use the real file rather than another symlink,
    # but for link time we create the symlink libNAME.so -> libNAME.so.V

    case $with_aix_soname,$aix_use_runtimelinking in
    # AIX (on Power*) has no versioning support, so currently we cannot hardcode correct
    # soname into executable. Probably we can add versioning support to
    # collect2, so additional links can be useful in future.
    aix,yes) # traditional libtool
      dynamic_linker='AIX unversionable lib.so'
      # If using run time linking (on AIX 4.2 or later) use lib<name>.so
      # instead of lib<name>.a to let people know that these are not
      # typical AIX shared libraries.
      library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
      ;;
    aix,no) # traditional AIX only
      dynamic_linker='AIX lib.a[(]lib.so.V[)]'
      # We preserve .a as extension for shared libraries through AIX4.2
      # and later when we are not doing run time linking.
      library_names_spec='$libname$release.a $libname.a'
      soname_spec='$libname$release$shared_ext$major'
      ;;
    svr4,*) # full svr4 only
      dynamic_linker="AIX lib.so.V[(]$shared_archive_member_spec.o[)]"
      library_names_spec='$libname$release$shared_ext$major $libname$shared_ext'
      # We do not specify a path in Import Files, so LIBPATH fires.
      shlibpath_overrides_runpath=yes
      ;;
    *,yes) # both, prefer svr4
      dynamic_linker="AIX lib.so.V[(]$shared_archive_member_spec.o[)], lib.a[(]lib.so.V[)]"
      library_names_spec='$libname$release$shared_ext$major $libname$shared_ext'
      # unpreferred sharedlib libNAME.a needs extra handling
      postinstall_cmds='test -n "$linkname" || linkname="$realname"~func_stripname "" ".so" "$linkname"~$install_shared_prog "$dir/$func_stripname_result.$libext" "$destdir/$func_stripname_result.$libext"~test -z "$tstripme" || test -z "$striplib" || $striplib "$destdir/$func_stripname_result.$libext"'
      postuninstall_cmds='for n in $library_names $old_library; do :; done~func_stripname "" ".so" "$n"~test "$func_stripname_result" = "$n" || func_append rmfiles " $odir/$func_stripname_result.$libext"'
      # We do not specify a path in Import Files, so LIBPATH fires.
      shlibpath_overrides_runpath=yes
      ;;
    *,no) # both, prefer aix
      dynamic_linker="AIX lib.a[(]lib.so.V[)], lib.so.V[(]$shared_archive_member_spec.o[)]"
      library_names_spec='$libname$release.a $libname.a'
      soname_spec='$libname$release$shared_ext$major'
      # unpreferred sharedlib libNAME.so.V and symlink libNAME.so need extra handling
      postinstall_cmds='test -z "$dlname" || $install_shared_prog $dir/$dlname $destdir/$dlname~test -z "$tstripme" || test -z "$striplib" || $striplib $destdir/$dlname~test -n "$linkname" || linkname=$realname~func_stripname "" ".a" "$linkname"~(cd "$destdir" && $LN_S -f $dlname $func_stripname_result.so)'
      postuninstall_cmds='test -z "$dlname" || func_append rmfiles " $odir/$dlname"~for n in $old_library $library_names; do :; done~func_stripname "" ".a" "$n"~func_append rmfiles " $odir/$func_stripname_result.so"'
      ;;
    esac
    shlibpath_var=LIBPATH
  fi
  ;;

amigaos*)
  case $host_cpu in
  powerpc)
    # Since July 2007 AmigaOS4 officially supports .so libraries.
    # When compiling the executable, add -use-dynld -Lsobjs: to the compileline.
    library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
    ;;
  m68k)
    library_names_spec='$libname.ixlibrary $libname.a'
    # Create ${libname}_ixlibrary.a entries in /sys/libs.
    finish_eval='for lib in `ls $libdir/*.ixlibrary 2>/dev/null`; do libname=`func_echo_all "$lib" | $SED '\''s%^.*/\([[^/]]*\)\.ixlibrary$%\1%'\''`; $RM /sys/libs/${libname}_ixlibrary.a; $show "cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a"; cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a || exit 1; done'
    ;;
  esac
  ;;

beos*)
  library_names_spec='$libname$shared_ext'
  dynamic_linker="$host_os ld.so"
  shlibpath_var=LIBRARY_PATH
  ;;

bsdi[[45]]*)
  version_type=linux # correct to gnu/linux during the next big refactor
  need_version=no
  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
  soname_spec='$libname$release$shared_ext$major'
  finish_cmds='PATH="\$PATH:/sbin" ldconfig $libdir'
  shlibpath_var=LD_LIBRARY_PATH
  sys_lib_search_path_spec="/shlib /usr/lib /usr/X11/lib /usr/contrib/lib /lib /usr/local/lib"
  sys_lib_dlsearch_path_spec="/shlib /usr/lib /usr/local/lib"
  # the default ld.so.conf also contains /usr/contrib/lib and
  # /usr/X11R6/lib (/usr/X11 is a link to /usr/X11R6), but let us allow
  # libtool to hard-code these into programs
  ;;

cygwin* | mingw* | pw32* | cegcc*)
  version_type=windows
  shrext_cmds=.dll
  need_version=no
  need_lib_prefix=no

  case $GCC,$cc_basename in
  yes,*)
    # gcc
    library_names_spec='$libname.dll.a'
    # DLL is installed to $(libdir)/../bin by postinstall_cmds
    postinstall_cmds='base_file=`basename \$file`~
      dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\$base_file'\''i; echo \$dlname'\''`~
      dldir=$destdir/`dirname \$dlpath`~
      test -d \$dldir || mkdir -p \$dldir~
      $install_prog $dir/$dlname \$dldir/$dlname~
      chmod a+x \$dldir/$dlname~
      if test -n '\''$stripme'\'' && test -n '\''$striplib'\''; then
        eval '\''$striplib \$dldir/$dlname'\'' || exit \$?;
      fi'
    postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; echo \$dlname'\''`~
      dlpath=$dir/\$dldll~
       $RM \$dlpath'
    shlibpath_overrides_runpath=yes

    case $host_os in
    cygwin*)
      # Cygwin DLLs use 'cyg' prefix rather than 'lib'
      soname_spec='`echo $libname | sed -e 's/^lib/cyg/'``echo $release | $SED -e 's/[[.]]/-/g'`$versuffix$shared_ext'
m4_if([$1], [],[
      sys_lib_search_path_spec="$sys_lib_search_path_spec /usr/lib/w32api"])
      ;;
    mingw* | cegcc*)
      # MinGW DLLs use traditional 'lib' prefix
      soname_spec='$libname`echo $release | $SED -e 's/[[.]]/-/g'`$versuffix$shared_ext'
      ;;
    pw32*)
      # pw32 DLLs use 'pw' prefix rather than 'lib'
      library_names_spec='`echo $libname | sed -e 's/^lib/pw/'``echo $release | $SED -e 's/[[.]]/-/g'`$versuffix$shared_ext'
      ;;
    esac
    dynamic_linker='Win32 ld.exe'
    ;;

  *,cl*)
    # Native MSVC
    libname_spec='$name'
    soname_spec='$libname`echo $release | $SED -e 's/[[.]]/-/g'`$versuffix$shared_ext'
    library_names_spec='$libname.dll.lib'

    case $build_os in
    mingw*)
      sys_lib_search_path_spec=
      lt_save_ifs=$IFS
      IFS=';'
      for lt_path in $LIB
      do
        IFS=$lt_save_ifs
        # Let DOS variable expansion print the short 8.3 style file name.
        lt_path=`cd "$lt_path" 2>/dev/null && cmd //C "for %i in (".") do @echo %~si"`
        sys_lib_search_path_spec="$sys_lib_search_path_spec $lt_path"
      done
      IFS=$lt_save_ifs
      # Convert to MSYS style.
      sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | sed -e 's|\\\\|/|g' -e 's| \\([[a-zA-Z]]\\):| /\\1|g' -e 's|^ ||'`
      ;;
    cygwin*)
      # Convert to unix form, then to dos form, then back to unix form
      # but this time dos style (no spaces!) so that the unix form looks
      # like /cygdrive/c/PROGRA~1:/cygdr...
      sys_lib_search_path_spec=`cygpath --path --unix "$LIB"`
      sys_lib_search_path_spec=`cygpath --path --dos "$sys_lib_search_path_spec" 2>/dev/null`
      sys_lib_search_path_spec=`cygpath --path --unix "$sys_lib_search_path_spec" | $SED -e "s/$PATH_SEPARATOR/ /g"`
      ;;
    *)
      sys_lib_search_path_spec=$LIB
      if $ECHO "$sys_lib_search_path_spec" | [$GREP ';[c-zC-Z]:/' >/dev/null]; then
        # It is most probably a Windows format PATH.
        sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | $SED -e 's/;/ /g'`
      else
        sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | $SED -e "s/$PATH_SEPARATOR/ /g"`
      fi
      # FIXME: find the short name or the path components, as spaces are
      # common. (e.g. "Program Files" -> "PROGRA~1")
      ;;
    esac

    # DLL is installed to $(libdir)/../bin by postinstall_cmds
    postinstall_cmds='base_file=`basename \$file`~
      dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\$base_file'\''i; echo \$dlname'\''`~
      dldir=$destdir/`dirname \$dlpath`~
      test -d \$dldir || mkdir -p \$dldir~
      $install_prog $dir/$dlname \$dldir/$dlname'
    postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; echo \$dlname'\''`~
      dlpath=$dir/\$dldll~
       $RM \$dlpath'
    shlibpath_overrides_runpath=yes
    dynamic_linker='Win32 link.exe'
    ;;

  *)
    # Assume MSVC wrapper
    library_names_spec='$libname`echo $release | $SED -e 's/[[.]]/-/g'`$versuffix$shared_ext $libname.lib'
    dynamic_linker='Win32 ld.exe'
    ;;
  esac
  # FIXME: first we should search . and the directory the executable is in
  shlibpath_var=PATH
  ;;

darwin* | rhapsody*)
  dynamic_linker="$host_os dyld"
  version_type=darwin
  need_lib_prefix=no
  need_version=no
  library_names_spec='$libname$release$major$shared_ext $libname$shared_ext'
  soname_spec='$libname$release$major$shared_ext'
  shlibpath_overrides_runpath=yes
  shlibpath_var=DYLD_LIBRARY_PATH
  shrext_cmds='`test .$module = .yes && echo .so || echo .dylib`'
m4_if([$1], [],[
  sys_lib_search_path_spec="$sys_lib_search_path_spec /usr/local/lib"])
  sys_lib_dlsearch_path_spec='/usr/local/lib /lib /usr/lib'
  ;;

dgux*)
  version_type=linux # correct to gnu/linux during the next big refactor
  need_lib_prefix=no
  need_version=no
  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
  soname_spec='$libname$release$shared_ext$major'
  shlibpath_var=LD_LIBRARY_PATH
  ;;

freebsd* | dragonfly*)
  # DragonFly does not have aout.  When/if they implement a new
  # versioning mechanism, adjust this.
  if test -x /usr/bin/objformat; then
    objformat=`/usr/bin/objformat`
  else
    case $host_os in
    freebsd[[23]].*) objformat=aout ;;
    *) objformat=elf ;;
    esac
  fi
  version_type=freebsd-$objformat
  case $version_type in
    freebsd-elf*)
      library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
      soname_spec='$libname$release$shared_ext$major'
      need_version=no
      need_lib_prefix=no
      ;;
    freebsd-*)
      library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix'
      need_version=yes
      ;;
  esac
  shlibpath_var=LD_LIBRARY_PATH
  case $host_os in
  freebsd2.*)
    shlibpath_overrides_runpath=yes
    ;;
  freebsd3.[[01]]* | freebsdelf3.[[01]]*)
    shlibpath_overrides_runpath=yes
    hardcode_into_libs=yes
    ;;
  freebsd3.[[2-9]]* | freebsdelf3.[[2-9]]* | \
  freebsd4.[[0-5]] | freebsdelf4.[[0-5]] | freebsd4.1.1 | freebsdelf4.1.1)
    shlibpath_overrides_runpath=no
    hardcode_into_libs=yes
    ;;
  *) # from 4.6 on, and DragonFly
    shlibpath_overrides_runpath=yes
    hardcode_into_libs=yes
    ;;
  esac
  ;;

haiku*)
  version_type=linux # correct to gnu/linux during the next big refactor
  need_lib_prefix=no
  need_version=no
  dynamic_linker="$host_os runtime_loader"
  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
  soname_spec='$libname$release$shared_ext$major'
  shlibpath_var=LIBRARY_PATH
  shlibpath_overrides_runpath=no
  sys_lib_dlsearch_path_spec='/boot/home/config/lib /boot/common/lib /boot/system/lib'
  hardcode_into_libs=yes
  ;;

hpux9* | hpux10* | hpux11*)
  # Give a soname corresponding to the major version so that dld.sl refuses to
  # link against other versions.
  version_type=sunos
  need_lib_prefix=no
  need_version=no
  case $host_cpu in
  ia64*)
    shrext_cmds='.so'
    hardcode_into_libs=yes
    dynamic_linker="$host_os dld.so"
    shlibpath_var=LD_LIBRARY_PATH
    shlibpath_overrides_runpath=yes # Unless +noenvvar is specified.
    library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
    soname_spec='$libname$release$shared_ext$major'
    if test 32 = "$HPUX_IA64_MODE"; then
      sys_lib_search_path_spec="/usr/lib/hpux32 /usr/local/lib/hpux32 /usr/local/lib"
      sys_lib_dlsearch_path_spec=/usr/lib/hpux32
    else
      sys_lib_search_path_spec="/usr/lib/hpux64 /usr/local/lib/hpux64"
      sys_lib_dlsearch_path_spec=/usr/lib/hpux64
    fi
    ;;
  hppa*64*)
    shrext_cmds='.sl'
    hardcode_into_libs=yes
    dynamic_linker="$host_os dld.sl"
    shlibpath_var=LD_LIBRARY_PATH # How should we handle SHLIB_PATH
    shlibpath_overrides_runpath=yes # Unless +noenvvar is specified.
    library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
    soname_spec='$libname$release$shared_ext$major'
    sys_lib_search_path_spec="/usr/lib/pa20_64 /usr/ccs/lib/pa20_64"
    sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec
    ;;
  *)
    shrext_cmds='.sl'
    dynamic_linker="$host_os dld.sl"
    shlibpath_var=SHLIB_PATH
    shlibpath_overrides_runpath=no # +s is required to enable SHLIB_PATH
    library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
    soname_spec='$libname$release$shared_ext$major'
    ;;
  esac
  # HP-UX runs *really* slowly unless shared libraries are mode 555, ...
  postinstall_cmds='chmod 555 $lib'
  # or fails outright, so override atomically:
  install_override_mode=555
  ;;

interix[[3-9]]*)
  version_type=linux # correct to gnu/linux during the next big refactor
  need_lib_prefix=no
  need_version=no
  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
  soname_spec='$libname$release$shared_ext$major'
  dynamic_linker='Interix 3.x ld.so.1 (PE, like ELF)'
  shlibpath_var=LD_LIBRARY_PATH
  shlibpath_overrides_runpath=no
  hardcode_into_libs=yes
  ;;

irix5* | irix6* | nonstopux*)
  case $host_os in
    nonstopux*) version_type=nonstopux ;;
    *)
	if test yes = "$lt_cv_prog_gnu_ld"; then
		version_type=linux # correct to gnu/linux during the next big refactor
	else
		version_type=irix
	fi ;;
  esac
  need_lib_prefix=no
  need_version=no
  soname_spec='$libname$release$shared_ext$major'
  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$release$shared_ext $libname$shared_ext'
  case $host_os in
  irix5* | nonstopux*)
    libsuff= shlibsuff=
    ;;
  *)
    case $LD in # libtool.m4 will add one of these switches to LD
    *-32|*"-32 "|*-melf32bsmip|*"-melf32bsmip ")
      libsuff= shlibsuff= libmagic=32-bit;;
    *-n32|*"-n32 "|*-melf32bmipn32|*"-melf32bmipn32 ")
      libsuff=32 shlibsuff=N32 libmagic=N32;;
    *-64|*"-64 "|*-melf64bmip|*"-melf64bmip ")
      libsuff=64 shlibsuff=64 libmagic=64-bit;;
    *) libsuff= shlibsuff= libmagic=never-match;;
    esac
    ;;
  esac
  shlibpath_var=LD_LIBRARY${shlibsuff}_PATH
  shlibpath_overrides_runpath=no
  sys_lib_search_path_spec="/usr/lib$libsuff /lib$libsuff /usr/local/lib$libsuff"
  sys_lib_dlsearch_path_spec="/usr/lib$libsuff /lib$libsuff"
  hardcode_into_libs=yes
  ;;

# No shared lib support for Linux oldld, aout, or coff.
linux*oldld* | linux*aout* | linux*coff*)
  dynamic_linker=no
  ;;

linux*android*)
  version_type=none # Android doesn't support versioned libraries.
  need_lib_prefix=no
  need_version=no
  library_names_spec='$libname$release$shared_ext'
  soname_spec='$libname$release$shared_ext'
  finish_cmds=
  shlibpath_var=LD_LIBRARY_PATH
  shlibpath_overrides_runpath=yes

  # This implies no fast_install, which is unacceptable.
  # Some rework will be needed to allow for fast_install
  # before this can be enabled.
  hardcode_into_libs=yes

  dynamic_linker='Android linker'
  # Don't embed -rpath directories since the linker doesn't support them.
  _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
  ;;

# This must be glibc/ELF.
linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
  version_type=linux # correct to gnu/linux during the next big refactor
  need_lib_prefix=no
  need_version=no
  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
  soname_spec='$libname$release$shared_ext$major'
  finish_cmds='PATH="\$PATH:/sbin" ldconfig -n $libdir'
  shlibpath_var=LD_LIBRARY_PATH
  shlibpath_overrides_runpath=no

  # Some binutils ld are patched to set DT_RUNPATH
  AC_CACHE_VAL([lt_cv_shlibpath_overrides_runpath],
    [lt_cv_shlibpath_overrides_runpath=no
    save_LDFLAGS=$LDFLAGS
    save_libdir=$libdir
    eval "libdir=/foo; wl=\"$_LT_TAGVAR(lt_prog_compiler_wl, $1)\"; \
	 LDFLAGS=\"\$LDFLAGS $_LT_TAGVAR(hardcode_libdir_flag_spec, $1)\""
    AC_LINK_IFELSE([AC_LANG_PROGRAM([],[])],
      [AS_IF([ ($OBJDUMP -p conftest$ac_exeext) 2>/dev/null | grep "RUNPATH.*$libdir" >/dev/null],
	 [lt_cv_shlibpath_overrides_runpath=yes])])
    LDFLAGS=$save_LDFLAGS
    libdir=$save_libdir
    ])
  shlibpath_overrides_runpath=$lt_cv_shlibpath_overrides_runpath

  # This implies no fast_install, which is unacceptable.
  # Some rework will be needed to allow for fast_install
  # before this can be enabled.
  hardcode_into_libs=yes

  # Ideally, we could use ldconfig to report *all* directores which are
  # searched for libraries, however this is still not possible.  Aside from not
  # being certain /sbin/ldconfig is available, command
  # 'ldconfig -N -X -v | grep ^/' on 64bit Fedora does not report /usr/lib64,
  # even though it is searched at run-time.  Try to do the best guess by
  # appending ld.so.conf contents (and includes) to the search path.
  if test -f /etc/ld.so.conf; then
    lt_ld_extra=`awk '/^include / { system(sprintf("cd /etc; cat %s 2>/dev/null", \[$]2)); skip = 1; } { if (!skip) print \[$]0; skip = 0; }' < /etc/ld.so.conf | $SED -e 's/#.*//;/^[	 ]*hwcap[	 ]/d;s/[:,	]/ /g;s/=[^=]*$//;s/=[^= ]* / /g;s/"//g;/^$/d' | tr '\n' ' '`
    sys_lib_dlsearch_path_spec="/lib /usr/lib $lt_ld_extra"
  fi

  # We used to test for /lib/ld.so.1 and disable shared libraries on
  # powerpc, because MkLinux only supported shared libraries with the
  # GNU dynamic linker.  Since this was broken with cross compilers,
  # most powerpc-linux boxes support dynamic linking these days and
  # people can always --disable-shared, the test was removed, and we
  # assume the GNU/Linux dynamic linker is in use.
  dynamic_linker='GNU/Linux ld.so'
  ;;

netbsdelf*-gnu)
  version_type=linux
  need_lib_prefix=no
  need_version=no
  library_names_spec='${libname}${release}${shared_ext}$versuffix ${libname}${release}${shared_ext}$major ${libname}${shared_ext}'
  soname_spec='${libname}${release}${shared_ext}$major'
  shlibpath_var=LD_LIBRARY_PATH
  shlibpath_overrides_runpath=no
  hardcode_into_libs=yes
  dynamic_linker='NetBSD ld.elf_so'
  ;;

netbsd*)
  version_type=sunos
  need_lib_prefix=no
  need_version=no
  if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
    library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix'
    finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir'
    dynamic_linker='NetBSD (a.out) ld.so'
  else
    library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
    soname_spec='$libname$release$shared_ext$major'
    dynamic_linker='NetBSD ld.elf_so'
  fi
  shlibpath_var=LD_LIBRARY_PATH
  shlibpath_overrides_runpath=yes
  hardcode_into_libs=yes
  ;;

newsos6)
  version_type=linux # correct to gnu/linux during the next big refactor
  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
  shlibpath_var=LD_LIBRARY_PATH
  shlibpath_overrides_runpath=yes
  ;;

*nto* | *qnx*)
  version_type=qnx
  need_lib_prefix=no
  need_version=no
  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
  soname_spec='$libname$release$shared_ext$major'
  shlibpath_var=LD_LIBRARY_PATH
  shlibpath_overrides_runpath=no
  hardcode_into_libs=yes
  dynamic_linker='ldqnx.so'
  ;;

openbsd* | bitrig*)
  version_type=sunos
  sys_lib_dlsearch_path_spec=/usr/lib
  need_lib_prefix=no
  if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`"; then
    need_version=no
  else
    need_version=yes
  fi
  library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix'
  finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir'
  shlibpath_var=LD_LIBRARY_PATH
  shlibpath_overrides_runpath=yes
  ;;

os2*)
  libname_spec='$name'
  version_type=windows
  shrext_cmds=.dll
  need_version=no
  need_lib_prefix=no
  # OS/2 can only load a DLL with a base name of 8 characters or less.
  soname_spec='`test -n "$os2dllname" && libname="$os2dllname";
    v=$($ECHO $release$versuffix | tr -d .-);
    n=$($ECHO $libname | cut -b -$((8 - ${#v})) | tr . _);
    $ECHO $n$v`$shared_ext'
  library_names_spec='${libname}_dll.$libext'
  dynamic_linker='OS/2 ld.exe'
  shlibpath_var=BEGINLIBPATH
  sys_lib_search_path_spec="/lib /usr/lib /usr/local/lib"
  sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec
  postinstall_cmds='base_file=`basename \$file`~
    dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\$base_file'\''i; $ECHO \$dlname'\''`~
    dldir=$destdir/`dirname \$dlpath`~
    test -d \$dldir || mkdir -p \$dldir~
    $install_prog $dir/$dlname \$dldir/$dlname~
    chmod a+x \$dldir/$dlname~
    if test -n '\''$stripme'\'' && test -n '\''$striplib'\''; then
      eval '\''$striplib \$dldir/$dlname'\'' || exit \$?;
    fi'
  postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; $ECHO \$dlname'\''`~
    dlpath=$dir/\$dldll~
    $RM \$dlpath'
  ;;

osf3* | osf4* | osf5*)
  version_type=osf
  need_lib_prefix=no
  need_version=no
  soname_spec='$libname$release$shared_ext$major'
  library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
  shlibpath_var=LD_LIBRARY_PATH
  sys_lib_search_path_spec="/usr/shlib /usr/ccs/lib /usr/lib/cmplrs/cc /usr/lib /usr/local/lib /var/shlib"
  sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec
  ;;

rdos*)
  dynamic_linker=no
  ;;

solaris*)
  version_type=linux # correct to gnu/linux during the next big refactor