Symlink the libtool-1.4.m4 file into any directory in which there's a

configure script under ${WRKSRC}.  The symlink is called "libtool.m4",
which is the name expected by the autoconf tools.  The symlinking is
only done if ${AUTOCONF_REQD} == 2.13 and USE_LIBTOOL is defined.  This
allows autoconf-2.13, autoreconf-2.13 and aclocal-2.13 to use the older
libtool.m4 file when regenerating files.  This is okay, because we later
override the generated libtool file anyway.

This fixes problems when libtool-1.5.x is installed and a package tries
to invoke autoconf-2.13 programs at pre-configure time, e.g., gnome-games,
xpuyopuyo, faad2, libwww, etc.  These packages no longer need to be
worked around by bumping AUTOCONF_REQD to 2.50.

2 files changed, 886 insertions, 2 deletions

diff --git a/mk/autoconf.mk b/mk/autoconf.mk
index 52ba1952ab2..5ab5d38633e 100644
--- a/mk/autoconf.mk
+++ b/mk/autoconf.mk
@@ -1,4 +1,4 @@
-# $NetBSD: autoconf.mk,v 1.3 2002/10/03 19:36:36 wiz Exp $
+# $NetBSD: autoconf.mk,v 1.4 2004/02/20 09:58:49 jlam Exp $
 #
 # makefile fragment for packages that use autoconf
 # AUTOCONF_REQD can be set to the minimum version required.
@@ -15,7 +15,7 @@ AUTOCONF_MK=	# defined
 # minimal required version
 AUTOCONF_REQD?= 2.50
 
-.if ${AUTOCONF_REQD:M2.1[0-9]*} == ""
+.if empty(AUTOCONF_REQD:M2.1[0-9]*)
 BUILD_DEPENDS+=		autoconf>=${AUTOCONF_REQD}:../../devel/autoconf
 AUTOCONF=		${LOCALBASE}/bin/autoconf
 AUTORECONF=		${LOCALBASE}/bin/autoreconf
@@ -25,6 +25,36 @@ BUILD_DEPENDS+=		autoconf213>=${AUTOCONF_REQD}:../../devel/autoconf213
 AUTOCONF=		${LOCALBASE}/bin/autoconf-2.13
 AUTORECONF=		${LOCALBASE}/bin/autoreconf-2.13
 AUTOHEADER=		${LOCALBASE}/bin/autoheader-2.13
+.  if defined(USE_LIBTOOL)
+pre-configure: do-libtool-m4-override
+.  endif
 .endif
 
+# LIBTOOL_M4_OVERRIDE lists the locations where the libtool.m4 symlink
+# will be created.  The libtool.m4 is only created if a GNU configure
+# script exists at that location.
+#
+LIBTOOL_M4_OVERRIDE?=	libtool.m4 */libtool.m4 */*/libtool.m4
+
+# Symlink the libtool-1.4.m4 file into any directory in which there's a
+# configure script under ${WRKSRC}.  The  symlink is called "libtool.m4",
+# which is the name expected by the autoconf tools.  The symlinking is
+# only done if ${AUTOCONF_REQD} == 2.13 and USE_LIBTOOL is defined.  This
+# allows autoconf-2.13, autoreconf-2.13 and aclocal-2.13 to use the older
+# libtool.m4 file when regenerating files.  This is okay, because we later
+# override the generated libtool file anyway.
+#
+.PHONY: do-libtool-m4-override
+do-libtool-m4-override:
+.for _pattern_ in ${LIBTOOL_M4_OVERRIDE}
+	${_PKG_SILENT}${_PKG_DEBUG}cd ${WRKSRC};			\
+	for file in ${_pattern_:S/libtool.m4$/configure/}; do		\
+		if [ -f "$$file" ]; then				\
+			libtool_m4=`${DIRNAME} $$file`/libtool.m4;	\
+			${LN} -sf ${_PKGSRCDIR}/mk/gnu-config/libtool-1.4.m4 \
+				$$libtool_m4;				\
+		fi;							\
+	done
+.endfor
+
 .endif # AUTOCONF_MK
diff --git a/mk/gnu-config/libtool-1.4.m4 b/mk/gnu-config/libtool-1.4.m4
new file mode 100644
index 00000000000..aa7e62a0e67
--- /dev/null
+++ b/mk/gnu-config/libtool-1.4.m4
@@ -0,0 +1,854 @@
+## 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., 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 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
+
+# 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
+    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
+  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_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*)
+  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
+  ;;
+
+freebsd* )
+  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*)
+  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
+  ;;
+
+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*)
+  case $host_cpu in
+  alpha* | hppa* | i*86 | powerpc* | sparc* | ia64* )
+    lt_cv_deplibs_check_method=pass_all ;;
+  *)
+    # glibc up to 2.1.1 does not perform some relocations on ARM
+    lt_cv_deplibs_check_method=['file_magic ELF [0-9][0-9]*-bit [LM]SB (shared object|dynamic lib )'] ;;
+  esac
+  lt_cv_file_magic_test_file=`echo /lib/libc.so* /lib/libc-*.so`
+  ;;
+
+netbsd*)
+  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 $host in
+*-*-beos* | *-*-cygwin* | *-*-pw32*)
+  # These system don't have libm
+  ;;
+*-ncr-sysv4.3*)
+  AC_CHECK_LIB(mw, _mwvalidcheckl, LIBM="-lmw")
+  AC_CHECK_LIB(m, main, LIBM="$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="$lt_save_CFLAGS"
+
+# Redirect the config.log output again, so that the ltconfig log is not
+# clobbered by the next message.
+exec 5>>./config.log
+])
+
+# AC_LIBTOOL_GCJ - enable support for GCJ libraries
+AC_DEFUN([AC_LIBTOOL_GCJ],[AC_REQUIRE([_AC_LIBTOOL_GCJ])])
+
+AC_DEFUN([_AC_LIBTOOL_GCJ],
+[AC_REQUIRE([AC_PROG_LIBTOOL])
+AC_PROVIDE_IFELSE([AC_PROG_GCJ],[],
+  [AC_PROVIDE_IFELSE([A][M_PROG_GCJ],[],
+    [AC_PROVIDE_IFELSE([LT_AC_PROG_GCJ],[],
+      [ifdef([AC_PROG_GCJ],[AC_REQUIRE([AC_PROG_GCJ])],
+         [ifdef([A][M_PROG_GCJ],[AC_REQUIRE([A][M_PROG_GCJ])],
+           [AC_REQUIRE([A][C_PROG_GCJ_OR_A][M_PROG_GCJ])])])])])])
+LIBTOOL_DEPS=$LIBTOOL_DEPS" $ac_aux_dir/ltcf-gcj.sh"
+lt_save_CC="$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="$CC" CC="$GCJ" CFLAGS="$GCJFLAGS" CPPFLAGS="$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=GCJ $ac_aux_dir/ltcf-gcj.sh $host \
+|| AC_MSG_ERROR([libtool tag configuration failed])
+CC="$lt_save_CC"
+CFLAGS="$lt_save_CFLAGS"
+
+# Redirect the config.log output again, so that the ltconfig log is not
+# clobbered by the next message.
+exec 5>>./config.log
+])
+
+dnl old names
+AC_DEFUN([AM_PROG_LIBTOOL],   [AC_PROG_LIBTOOL])
+AC_DEFUN([AM_ENABLE_SHARED],  [AC_ENABLE_SHARED($@)])
+AC_DEFUN([AM_ENABLE_STATIC],  [AC_ENABLE_STATIC($@)])
+AC_DEFUN([AM_DISABLE_SHARED], [AC_DISABLE_SHARED($@)])
+AC_DEFUN([AM_DISABLE_STATIC], [AC_DISABLE_STATIC($@)])
+AC_DEFUN([AM_PROG_LD],        [AC_PROG_LD])
+AC_DEFUN([AM_PROG_NM],        [AC_PROG_NM])
+
+dnl This is just to silence aclocal about the macro not being used
+ifelse([AC_DISABLE_FAST_INSTALL])dnl
+
+AC_DEFUN([LT_AC_PROG_GCJ],
+[AC_CHECK_TOOL(GCJ, gcj, no)
+  test "x${GCJFLAGS+set}" = xset || GCJFLAGS="-g -O2"
+  AC_SUBST(GCJFLAGS)
+])