First cut at standard way of making dynamically loadable extensions on UNIX.

Examples on how to test:

 ./configure --with-xml              static
 ./configure --with-xml=/opt         static
 ./configure --with-xml=shared       shared
 ./configure --with-xml=shared,/opt  shared

The difference between these two is that when the extension is shared, it
is not merged into libphpext.a.  The shared extension is currently always
built.  I can't find a way to do just one or the other with automake/libtool,
if someone has a clever idea, please come forward. :-)

"make install" installs the .so (as well as a lot of other cruft) in
$prefix/lib/php.

1 files changed, 2036 insertions, 278 deletions

diff --git a/ltconfig b/ltconfig
index 7bba4e6b37..ab304fd3b7 100644
--- a/ltconfig
+++ b/ltconfig
@@ -1,9 +1,7 @@
 #! /bin/sh
 
 # ltconfig - Create a system-specific libtool.
-# When updating this script, search for LINENUM and fix line number refs.
-# Generated automatically from ltconfig.in by configure.
-# Copyright (C) 1996, 1997, Free Software Foundation, Inc.
+# Copyright (C) 1996-1999 Free Software Foundation, Inc.
 # Gordon Matzigkeit <gord@gnu.ai.mit.edu>, 1996
 #
 # This file is free software; you can redistribute it and/or modify it
@@ -27,23 +25,160 @@
 
 # A lot of this script is taken from autoconf-2.10.
 
+# Check that we are running under the correct shell.
+SHELL=${CONFIG_SHELL-/bin/sh}
+echo=echo
+if test "X$1" = X--no-reexec; then
+  # Discard the --no-reexec flag, and continue.
+  shift
+elif test "X$1" = X--fallback-echo; then
+  # used as fallback echo
+  shift
+  cat <<EOF
+$*
+EOF
+  exit 0
+elif test "X`($echo '\t') 2>/dev/null`" = 'X\t'; then
+  # Yippee, $echo works!
+  :
+else
+  # Restart under the correct shell.
+  exec "$SHELL" "$0" --no-reexec ${1+"$@"}
+fi
+
+# Find the correct PATH separator.  Usually this is `:', but
+# DJGPP uses `;' like DOS.
+if test "X${PATH_SEPARATOR+set}" != "Xset"; then
+  UNAME=${UNAME-`uname 2>/dev/null`}
+  case X$UNAME in
+    *-DOS) PATH_SEPARATOR=';' ;;
+    *)     PATH_SEPARATOR=':' ;;
+  esac
+fi
+
+# The HP-UX ksh and POSIX shell print the target directory to stdout
+# if CDPATH is set.
+if test "${CDPATH+set}" = set; then CDPATH=; export CDPATH; fi
+
+if test "X${echo_test_string+set}" != "Xset"; then
+  # find a string as large as possible, as long as the shell can cope with it
+  for cmd in 'sed 50q "$0"' 'sed 20q "$0"' 'sed 10q "$0"' 'sed 2q "$0"' 'echo test'; do
+    # expected sizes: less than 2Kb, 1Kb, 512 bytes, 16 bytes, ...
+    if (echo_test_string="`eval $cmd`") 2>/dev/null &&
+       echo_test_string="`eval $cmd`" &&
+       (test "X$echo_test_string" = "X$echo_test_string") 2>/dev/null; then
+      break
+    fi
+  done
+fi
+
+if test "X`($echo '\t') 2>/dev/null`" != 'X\t' ||
+   test "X`($echo "$echo_test_string") 2>/dev/null`" != X"$echo_test_string"; then
+  # The Solaris, AIX, and Digital Unix default echo programs unquote
+  # backslashes.  This makes it impossible to quote backslashes using
+  #   echo "$something" | sed 's/\\/\\\\/g'
+  #
+  # So, first we look for a working echo in the user's PATH.
+
+  IFS="${IFS= 	}"; save_ifs="$IFS"; IFS="${IFS}${PATH_SEPARATOR}"
+  for dir in $PATH /usr/ucb; do
+    if test -f $dir/echo &&
+       test "X`($dir/echo '\t') 2>/dev/null`" = 'X\t' &&
+       test "X`($dir/echo "$echo_test_string") 2>/dev/null`" = X"$echo_test_string"; then
+      echo="$dir/echo"
+      break
+    fi
+  done
+  IFS="$save_ifs"
+
+  if test "X$echo" = Xecho; then
+    # We didn't find a better echo, so look for alternatives.
+    if test "X`(print -r '\t') 2>/dev/null`" = 'X\t' &&
+       test "X`(print -r "$echo_test_string") 2>/dev/null`" = X"$echo_test_string"; then
+      # This shell has a builtin print -r that does the trick.
+      echo='print -r'
+    elif test -f /bin/ksh && test "X$CONFIG_SHELL" != X/bin/ksh; then
+      # If we have ksh, try running ltconfig again with it.
+      ORIGINAL_CONFIG_SHELL="${CONFIG_SHELL-/bin/sh}"
+      export ORIGINAL_CONFIG_SHELL
+      CONFIG_SHELL=/bin/ksh
+      export CONFIG_SHELL
+      exec "$CONFIG_SHELL" "$0" --no-reexec ${1+"$@"}
+    else
+      # Try using printf.
+      echo='printf "%s\n"'
+      if test "X`($echo '\t') 2>/dev/null`" = 'X\t' &&
+	 test "X`($echo "$echo_test_string") 2>/dev/null`" = X"$echo_test_string"; then
+	# Cool, printf works
+	:
+      elif test "X`("$ORIGINAL_CONFIG_SHELL" "$0" --fallback-echo '\t') 2>/dev/null`" = 'X\t' &&
+	   test "X`("$ORIGINAL_CONFIG_SHELL" "$0" --fallback-echo "$echo_test_string") 2>/dev/null`" = X"$echo_test_string"; then
+	CONFIG_SHELL="$ORIGINAL_CONFIG_SHELL"
+	export CONFIG_SHELL
+	SHELL="$CONFIG_SHELL"
+	export SHELL
+	echo="$CONFIG_SHELL $0 --fallback-echo"
+      elif test "X`("$CONFIG_SHELL" "$0" --fallback-echo '\t') 2>/dev/null`" = 'X\t' &&
+	   test "X`("$CONFIG_SHELL" "$0" --fallback-echo "$echo_test_string") 2>/dev/null`" = X"$echo_test_string"; then
+	echo="$CONFIG_SHELL $0 --fallback-echo"
+      else
+	# maybe with a smaller string...
+	prev=:
+
+	for cmd in 'echo test' 'sed 2q "$0"' 'sed 10q "$0"' 'sed 20q "$0"' 'sed 50q "$0"'; do
+	  if (test "X$echo_test_string" = "X`eval $cmd`") 2>/dev/null; then
+	    break
+	  fi
+	  prev="$cmd"
+	done
+
+	if test "$prev" != 'sed 50q "$0"'; then
+	  echo_test_string=`eval $prev`
+	  export echo_test_string
+	  exec "${ORIGINAL_CONFIG_SHELL}" "$0" ${1+"$@"}
+	else
+	  # Oops.  We lost completely, so just stick with echo.
+	  echo=echo
+	fi
+      fi
+    fi
+  fi
+fi
+
+# Sed substitution that helps us do robust quoting.  It backslashifies
+# metacharacters that are still active within double-quoted strings.
+Xsed='sed -e s/^X//'
+sed_quote_subst='s/\([\\"\\`$\\\\]\)/\\\1/g'
+
+# Same as above, but do not quote variable references.
+double_quote_subst='s/\([\\"\\`\\\\]\)/\\\1/g'
+
+# Sed substitution to delay expansion of an escaped shell variable in a
+# double_quote_subst'ed string.
+delay_variable_subst='s/\\\\\\\\\\\$/\\\\\\$/g'
+
 # The name of this program.
-progname=`echo "$0" | sed 's%^.*/%%'`
+progname=`$echo "X$0" | $Xsed -e 's%^.*/%%'`
 
 # Constants:
 PROGRAM=ltconfig
 PACKAGE=libtool
-VERSION=1.0
+VERSION=1.2f
+TIMESTAMP=" (1.385 1999/03/15 17:24:54)"
 ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.c 1>&5'
+ac_link='${CC-cc} -o conftest $CFLAGS $CPPFLAGS $LDFLAGS conftest.c $LIBS 1>&5'
 rm="rm -f"
 
 help="Try \`$progname --help' for more information."
 
 # Global variables:
+default_ofile=libtool
 can_build_shared=yes
 enable_shared=yes
 # All known linkers require a `.a' archive for static linking.
 enable_static=yes
+enable_fast_install=yes
+enable_dlopen=unknown
 ltmain=
 silent=
 srcdir=
@@ -51,9 +186,15 @@ ac_config_guess=
 ac_config_sub=
 host=
 nonopt=
+ofile="$default_ofile"
 verify_host=yes
 with_gcc=no
 with_gnu_ld=no
+need_locks=yes
+ac_ext=c
+objext=o
+libext=a
+cache_file=
 
 old_AR="$AR"
 old_CC="$CC"
@@ -61,9 +202,10 @@ old_CFLAGS="$CFLAGS"
 old_CPPFLAGS="$CPPFLAGS"
 old_LD="$LD"
 old_LN_S="$LN_S"
+old_NM="$NM"
 old_RANLIB="$RANLIB"
-
-test -z "$AR" && AR=ar
+old_DLLTOOL="$DLLTOOL"
+old_AS="$AS"
 
 # Parse the command line options.
 args=
@@ -84,33 +226,49 @@ do
 
   case "$option" in
   --help) cat <<EOM
-Usage: $progname [OPTION]... LTMAIN [HOST]
+Usage: $progname [OPTION]... [HOST [LTMAIN]]
 
 Generate a system-specific libtool script.
 
+    --debug                enable verbose shell tracing
     --disable-shared       do not build shared libraries
     --disable-static       do not build static libraries
+    --disable-fast-install do not optimize for fast installation
+    --enable-dlopen        enable dlopen support
+    --enable-dlopen-self   enable support for dlopening programs
     --help                 display this help and exit
     --no-verify            do not verify that HOST is a valid host type
+-o, --output=FILE          specify the output file [default=$default_ofile]
     --quiet                same as \`--silent'
-    --silent               don't print informational messages
+    --silent               do not print informational messages
     --srcdir=DIR           find \`config.guess' in DIR
     --version              output version information and exit
     --with-gcc             assume that the GNU C compiler will be used
     --with-gnu-ld          assume that the C compiler uses the GNU linker
+    --disable-lock         disable file locking
+    --cache-file=FILE      configure cache file
 
-LTMAIN is the \`ltmain.sh' shell script fragment that provides basic libtool
-functionality.
+LTMAIN is the \`ltmain.sh' shell script fragment or \`ltmain.c' program
+that provides basic libtool functionality.
 
 HOST is the canonical host system name [default=guessed].
 EOM
   exit 0
   ;;
 
+  --debug)
+    echo "$progname: enabling shell trace mode"
+    set -x
+    ;;
+
   --disable-shared) enable_shared=no ;;
 
   --disable-static) enable_static=no ;;
 
+  --disable-fast-install) enable_fast_install=no ;;
+
+  --enable-dlopen) enable_dlopen=yes ;;
+
   --quiet | --silent) silent=yes ;;
 
   --srcdir) prev=srcdir ;;
@@ -118,11 +276,18 @@ EOM
 
   --no-verify) verify_host=no ;;
 
-  --version) echo "$PROGRAM (GNU $PACKAGE) $VERSION"; exit 0 ;;
+  --output | -o) prev=ofile ;;
+  --output=*) ofile="$optarg" ;;
+
+  --version) echo "$PROGRAM (GNU $PACKAGE) $VERSION$TIMESTAMP"; exit 0 ;;
 
   --with-gcc) with_gcc=yes ;;
   --with-gnu-ld) with_gnu_ld=yes ;;
 
+  --disable-lock) need_locks=no ;;
+
+  --cache-file=*) cache_file="$optarg" ;;
+
   -*)
     echo "$progname: unrecognized option \`$option'" 1>&2
     echo "$help" 1>&2
@@ -133,7 +298,7 @@ EOM
     if test -z "$ltmain"; then
       ltmain="$option"
     elif test -z "$host"; then
-# FIXME This generates an unnecessary warning for sparc-sun-solaris4.1.3_U1
+# This generates an unnecessary warning for sparc-sun-solaris4.1.3_U1
 #      if test -n "`echo $option| sed 's/[-a-z0-9.]//g'`"; then
 #        echo "$progname: warning \`$option' is not a valid host type" 1>&2
 #      fi
@@ -152,9 +317,10 @@ if test -z "$ltmain"; then
   exit 1
 fi
 
-if test -f "$ltmain"; then :
-else
-  echo "$progname: warning: \`$ltmain' does not exist" 1>&2
+if test ! -f "$ltmain"; then
+  echo "$progname: \`$ltmain' does not exist" 1>&2
+  echo "$help" 1>&2
+  exit 1
 fi
 
 # Quote any args containing shell metacharacters.
@@ -192,6 +358,11 @@ exec 5>>./config.log
 if test "${LC_ALL+set}" = set; then LC_ALL=C; export LC_ALL; fi
 if test "${LANG+set}"   = set; then LANG=C;   export LANG;   fi
 
+if test -n "$cache_file" && test -r "$cache_file"; then
+  echo "loading cache $cache_file within ltconfig"
+  . $cache_file
+fi
+
 if (echo "testing\c"; echo 1,2,3) | grep c >/dev/null; then
   # Stardent Vistra SVR4 grep lacks -e, says ghazi@caip.rutgers.edu.
   if (echo -n testing; echo 1,2,3) | sed s/-n/xn/ | grep xn >/dev/null; then
@@ -205,11 +376,12 @@ else
 fi
 
 if test -z "$srcdir"; then
-  # Assume the source directory is the same one as the path to ltmain.sh.
-  srcdir=`echo "$ltmain" | sed 's%/[^/]*$%%'`
+  # Assume the source directory is the same one as the path to LTMAIN.
+  srcdir=`$echo "X$ltmain" | $Xsed -e 's%/[^/]*$%%'`
   test "$srcdir" = "$ltmain" && srcdir=.
 fi
 
+trap "$rm conftest*; exit 1" 1 2 15
 if test "$verify_host" = yes; then
   # Check for config.guess and config.sub.
   ac_aux_dir=
@@ -228,7 +400,7 @@ if test "$verify_host" = yes; then
   ac_config_sub=$ac_aux_dir/config.sub
 
   # Make sure we can run config.sub.
-  if $ac_config_sub sun4 >/dev/null 2>&1; then :
+  if $SHELL $ac_config_sub sun4 >/dev/null 2>&1; then :
   else
     echo "$progname: cannot run $ac_config_sub" 1>&2
     echo "$help" 1>&2
@@ -240,15 +412,18 @@ if test "$verify_host" = yes; then
   host_alias=$host
   case "$host_alias" in
   "")
-    if host_alias=`$ac_config_guess`; then :
+    if host_alias=`$SHELL $ac_config_guess`; then :
     else
       echo "$progname: cannot guess host type; you must specify one" 1>&2
       echo "$help" 1>&2
       exit 1
     fi ;;
   esac
-  host=`$ac_config_sub $host_alias`
-  echo "$ac_t""$host" 1>&6
+  host=`$SHELL $ac_config_sub $host_alias`
+  echo "$ac_t$host" 1>&6
+
+  # Make sure the host verified.
+  test -z "$host" && exit 1
 
 elif test -z "$host"; then
   echo "$progname: you must specify a host type if you use \`--no-verify'" 1>&2
@@ -258,26 +433,42 @@ else
   host_alias=$host
 fi
 
-# Transform *-*-linux* to *-*-linux-gnu*, to support old configure scripts.
-case "$host" in
-*-*-linux-gnu*) ;;
-*-*-linux*) host=`echo $host | sed 's/^\(.*-.*-linux\)\(.*\)$/\1-gnu\2/'`
+# Transform linux* to *-*-linux-gnu*, to support old configure scripts.
+case "$host_os" in
+linux-gnu*) ;;
+linux*) host=`echo $host | sed 's/^\(.*-.*-linux\)\(.*\)$/\1-gnu\2/'`
 esac
 
 host_cpu=`echo $host | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\1/'`
 host_vendor=`echo $host | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\2/'`
 host_os=`echo $host | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\3/'`
 
+case "$host_os" in
+aix3*)
+  # AIX sometimes has problems with the GCC collect2 program.  For some
+  # reason, if we set the COLLECT_NAMES environment variable, the problems
+  # vanish in a puff of smoke.
+  if test "${COLLECT_NAMES+set}" != set; then
+    COLLECT_NAMES=
+    export COLLECT_NAMES
+  fi
+  ;;
+esac
+
 # Determine commands to create old-style static archives.
 old_archive_cmds='$AR cru $oldlib$oldobjs'
 old_postinstall_cmds='chmod 644 $oldlib'
+old_postuninstall_cmds=
+
+# Set a sane default for `AR'.
+test -z "$AR" && AR=ar
 
 # If RANLIB is not set, then run the test.
 if test "${RANLIB+set}" != "set"; then
   result=no
 
   echo $ac_n "checking for ranlib... $ac_c" 1>&6
-  IFS="${IFS= 	}"; save_ifs="$IFS"; IFS="${IFS}:"
+  IFS="${IFS= 	}"; save_ifs="$IFS"; IFS="${IFS}${PATH_SEPARATOR}"
   for dir in $PATH; do
     test -z "$dir" && dir=.
     if test -f $dir/ranlib; then
@@ -288,20 +479,24 @@ if test "${RANLIB+set}" != "set"; then
   done
   IFS="$save_ifs"
 
-  echo $ac_t "$result" 1>&6
+  echo "$ac_t$result" 1>&6
 fi
 
 if test -n "$RANLIB"; then
-  old_archive_cmds="$old_archive_cmds;\$RANLIB \$oldlib"
-  old_postinstall_cmds="$old_postinstall_cmds;\$RANLIB \$oldlib"
+  old_archive_cmds="$old_archive_cmds~\$RANLIB \$oldlib"
+  old_postinstall_cmds="\$RANLIB \$oldlib~$old_postinstall_cmds"
 fi
 
+# Set sane defaults for `DLLTOOL' and `AS', used on cygwin.
+test -z "$DLLTOOL" && DLLTOOL=dlltool
+test -z "$AS" && AS=as
+
 # Check to see if we are using GCC.
 if test "$with_gcc" != yes || test -z "$CC"; then
   # If CC is not set, then try to find GCC or a usable CC.
   if test -z "$CC"; then
     echo $ac_n "checking for gcc... $ac_c" 1>&6
-    IFS="${IFS= 	}"; save_ifs="$IFS"; IFS="${IFS}:"
+    IFS="${IFS= 	}"; save_ifs="$IFS"; IFS="${IFS}${PATH_SEPARATOR}"
     for dir in $PATH; do
       IFS="$save_ifs"
       test -z "$dir" && dir=.
@@ -313,16 +508,16 @@ if test "$with_gcc" != yes || test -z "$CC"; then
     IFS="$save_ifs"
 
     if test -n "$CC"; then
-      echo "$ac_t""$CC" 1>&6
+      echo "$ac_t$CC" 1>&6
     else
-      echo "$ac_t""no" 1>&6
+      echo "$ac_t"no 1>&6
     fi
   fi
 
   # Not "gcc", so try "cc", rejecting "/usr/ucb/cc".
   if test -z "$CC"; then
     echo $ac_n "checking for cc... $ac_c" 1>&6
-    IFS="${IFS= 	}"; save_ifs="$IFS"; IFS="${IFS}:"
+    IFS="${IFS= 	}"; save_ifs="$IFS"; IFS="${IFS}${PATH_SEPARATOR}"
     cc_rejected=no
     for dir in $PATH; do
       test -z "$dir" && dir=.
@@ -352,9 +547,9 @@ if test "$with_gcc" != yes || test -z "$CC"; then
     fi
 
     if test -n "$CC"; then
-      echo "$ac_t""$CC" 1>&6
+      echo "$ac_t$CC" 1>&6
     else
-      echo "$ac_t""no" 1>&6
+      echo "$ac_t"no 1>&6
     fi
 
     if test -z "$CC"; then
@@ -366,51 +561,96 @@ if test "$with_gcc" != yes || test -z "$CC"; then
   # Now see if the compiler is really GCC.
   with_gcc=no
   echo $ac_n "checking whether we are using GNU C... $ac_c" 1>&6
+  echo "$progname:564: checking whether we are using GNU C" >&5
 
-  trap "$rm conftest.c; exit 1" 1 2 15
   $rm conftest.c
   cat > conftest.c <<EOF
 #ifdef __GNUC__
   yes;
 #endif
 EOF
-  # LINENUM
-  if { ac_try='${CC-cc} -E conftest.c'; { (eval echo $progname:378: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
+  if { ac_try='${CC-cc} -E conftest.c'; { (eval echo $progname:572: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
     with_gcc=yes
   fi
   $rm conftest.c
-  echo $ac_t "$with_gcc" 1>&6
+  echo "$ac_t$with_gcc" 1>&6
 fi
 
 # Allow CC to be a program name with arguments.
 set dummy $CC
 compiler="$2"
 
+echo $ac_n "checking for object suffix... $ac_c" 1>&6
+$rm conftest*
+echo 'int i = 1;' > conftest.c
+echo "$progname:586: checking for object suffix" >& 5
+if { (eval echo $progname:587: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>conftest.err; }; then
+  # Append any warnings to the config.log.
+  cat conftest.err 1>&5
+
+  for ac_file in conftest.*; do
+    case $ac_file in
+    *.c) ;;
+    *) objext=`echo $ac_file | sed -e s/conftest.//` ;;
+    esac
+  done
+else
+  cat conftest.err 1>&5
+  echo "$progname: failed program was:" >&5
+  cat conftest.c >&5
+fi
+$rm conftest*
+echo "$ac_t$objext" 1>&6
+
 echo $ac_n "checking for $compiler option to produce PIC... $ac_c" 1>&6
 pic_flag=
-profile_flag_pattern=
 special_shlib_compile_flags=
 wl=
 link_static_flag=
+no_builtin_flag=
 
 if test "$with_gcc" = yes; then
-  pic_flag='-fPIC'
-  profile_flag_pattern='-pg?'
   wl='-Wl,'
   link_static_flag='-static'
+
+  case "$host_os" in
+  beos* | irix5* | irix6* | osf3* | osf4*)
+    # PIC is the default for these OSes.
+    ;;
+  aix*)
+    # Below there is a dirty hack to force normal static linking with -ldl
+    # The problem is because libdl dynamically linked with both libc and
+    # libC (AIX C++ library), which obviously doesn't included in libraries
+    # list by gcc. This cause undefined symbols with -static flags.
+    # This hack allows C programs to be linked with "-static -ldl", but
+    # we not sure about C++ programs.
+    link_static_flag="$link_static_flag ${wl}-lC"
+    ;;
+  cygwin* | mingw* | os2*)
+    # We can build DLLs from non-PIC.
+    ;;
+  amigaos*)
+    # FIXME: we need at least 68020 code to build shared libraries, but
+    # adding the `-m68020' flag to GCC prevents building anything better,
+    # like `-m68040'.
+    pic_flag='-m68020 -resident32 -malways-restore-a4'
+    ;;
+  *)
+    pic_flag='-fPIC'
+    ;;
+  esac
 else
   # PORTME Check for PIC flags for the system compiler.
   case "$host_os" in
   aix3* | aix4*)
-    # FIXME All rs/6000 code is PIC, but is there any non-rs/6000 AIX platform?
-    pic_flag=
+    # All AIX code is PIC.
     link_static_flag='-bnso -bI:/lib/syscalls.exp'
     ;;
 
-  hpux9* | hpux10*)
-    # FIXME is there a better link_static_flag that works with the bundled CC?
+  hpux9* | hpux10* | hpux11*)
+    # Is there a better link_static_flag that works with the bundled CC?
     wl='-Wl,'
-    link_static_flag='${wl}-a ${wl}archive'
+    link_static_flag="${wl}-a ${wl}archive"
     pic_flag='+Z'
     ;;
 
@@ -418,11 +658,14 @@ else
     wl='-Wl,'
     link_static_flag='-non_shared'
     # PIC (with -KPIC) is the default.
-    pic_flag=
+    ;;
+
+  cygwin* | mingw* | os2*)
+    # We can build DLLs from non-PIC.
     ;;
 
   osf3* | osf4*)
-    # FIXME - pic_flag is probably required for hppa*-osf* and i860-osf*
+    # All OSF/1 code is PIC.
     wl='-Wl,'
     link_static_flag='-non_shared'
     ;;
@@ -433,7 +676,7 @@ else
     special_shlib_compile_flags='-belf'
     ;;
 
-  solaris2*)
+  solaris*)
     pic_flag='-KPIC'
     link_static_flag='-Bstatic'
     wl='-Wl,'
@@ -445,24 +688,182 @@ else
     wl='-Qoption ld '
     ;;
 
+  sysv4.2uw2* | sysv4.3* | sysv5*)
+    pic_flag='-KPIC'
+    link_static_flag='-Bstatic'
+    wl='-Wl,'
+    ;;
+
+  uts4*)
+    pic_flag='-pic'
+    link_static_flag='-Bstatic'
+    ;;
+
   *)
     can_build_shared=no
     ;;
   esac
 fi
 
-case "$host_cpu" in
-rs6000 | powerpc | powerpcle)
-  # Yippee! All RS/6000 and PowerPC code is position-independent.
-  pic_flag=
-  ;;
-esac
-
 if test -n "$pic_flag"; then
-  echo $ac_t "$pic_flag" 1>&6
-  pic_flag=" $pic_flag"
+  echo "$ac_t$pic_flag" 1>&6
+
+  # Check to make sure the pic_flag actually works.
+  echo $ac_n "checking if $compiler PIC flag $pic_flag works... $ac_c" 1>&6
+  $rm conftest*
+  echo "int some_variable = 0;" > conftest.c
+  save_CFLAGS="$CFLAGS"
+  CFLAGS="$CFLAGS $pic_flag -DPIC"
+  echo "$progname:717: checking if $compiler PIC flag $pic_flag works" >&5
+  if { (eval echo $progname:718: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>conftest.err; } && test -s conftest.$objext; then
+    # Append any warnings to the config.log.
+    cat conftest.err 1>&5
+    
+    case "$host_os" in
+    hpux9* | hpux10* | hpux11*)
+      # On HP-UX, both CC and GCC only warn that PIC is supported... then they
+      # create non-PIC objects.  So, if there were any warnings, we assume that
+      # PIC is not supported.
+      if test -s conftest.err; then
+	echo "$ac_t"no 1>&6
+	can_build_shared=no
+	pic_flag=
+      else
+	echo "$ac_t"yes 1>&6
+	pic_flag=" $pic_flag"
+      fi
+      ;;
+    *)
+      echo "$ac_t"yes 1>&6
+      pic_flag=" $pic_flag"
+      ;;
+    esac
+  else
+    # Append any errors to the config.log.
+    cat conftest.err 1>&5
+    can_build_shared=no
+    pic_flag=
+    echo "$ac_t"no 1>&6
+  fi
+  CFLAGS="$save_CFLAGS"
+  $rm conftest*
 else
-  echo $ac_t none 1>&6
+  echo "$ac_t"none 1>&6
+fi
+
+# Check to see if options -o and -c are simultaneously supported by compiler
+echo $ac_n "checking if $compiler supports -c -o file.o... $ac_c" 1>&6
+$rm conftest*
+echo "int some_variable = 0;" > conftest.c
+save_CFLAGS="$CFLAGS"
+CFLAGS="$CFLAGS -c -o conftest2.o"
+echo "$progname:760: checking if $compiler supports -c -o file.o" >&5
+if { (eval echo $progname:761: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>conftest.err; } && test -s conftest2.o; then
+
+  # The compiler can only warn and ignore the option if not recognized
+  # So say no if there are warnings
+    if test -s conftest.err; then
+      echo "$ac_t"no 1>&6
+      compiler_c_o=no
+    else
+      echo "$ac_t"yes 1>&6
+      compiler_c_o=yes
+    fi
+else
+  # Append any errors to the config.log.
+  cat conftest.err 1>&5
+  compiler_c_o=no
+  echo "$ac_t"no 1>&6
+fi
+CFLAGS="$save_CFLAGS"
+$rm conftest*
+
+if test x"$compiler_c_o" = x"yes"; then
+  # Check to see if we can write to a .lo
+  echo $ac_n "checking if $compiler supports -c -o file.lo... $ac_c" 1>&6
+  $rm conftest*
+  echo "int some_variable = 0;" > conftest.c
+  save_CFLAGS="$CFLAGS"
+  CFLAGS="$CFLAGS -c -o conftest.lo"
+  echo "$progname:788: checking if $compiler supports -c -o file.lo" >&5
+if { (eval echo $progname:789: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>conftest.err; } && test -s conftest.lo; then
+
+    # The compiler can only warn and ignore the option if not recognized
+    # So say no if there are warnings
+      if test -s conftest.err; then
+	echo "$ac_t"no 1>&6
+	compiler_o_lo=no
+      else
+	echo "$ac_t"yes 1>&6
+	compiler_o_lo=yes
+      fi
+  else
+    # Append any errors to the config.log.
+    cat conftest.err 1>&5
+    compiler_o_lo=no
+    echo "$ac_t"no 1>&6
+  fi
+  CFLAGS="$save_CFLAGS"
+  $rm conftest*
+else
+  compiler_o_lo=no
+fi
+
+# Check to see if we can do hard links to lock some files if needed
+hard_links="nottested"
+if test "$compiler_c_o" = no && test "$need_locks" != no; then
+  # do not overwrite the value of need_locks provided by the user
+  echo $ac_n "checking if we can lock with hard links... $ac_c" 1>&6
+  hard_links=yes
+  $rm conftest*
+  ln conftest.a conftest.b 2>/dev/null && hard_links=no
+  touch conftest.a
+  ln conftest.a conftest.b 2>&5 || hard_links=no
+  ln conftest.a conftest.b 2>/dev/null && hard_links=no
+  echo "$ac_t$hard_links" 1>&6
+  $rm conftest*
+  if test "$hard_links" = no; then
+    echo "*** WARNING: \`$CC' does not support \`-c -o', so \`make -j' may be unsafe" >&2
+    need_locks=warn
+  fi
+else
+  need_locks=no
+fi
+
+if test "$with_gcc" = yes; then
+  # Check to see if options -fno-rtti -fno-exceptions are supported by compiler
+  echo $ac_n "checking if $compiler supports -fno-rtti -fno-exceptions ... $ac_c" 1>&6
+  $rm conftest*
+  echo "int some_variable = 0;" > conftest.c
+  save_CFLAGS="$CFLAGS"
+  CFLAGS="$CFLAGS -fno-rtti -fno-exceptions -c conftest.c"
+  echo "$progname:840: checking if $compiler supports -fno-rtti -fno-exceptions" >&5
+  if { (eval echo $progname:841: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>conftest.err; } && test -s conftest.o; then
+
+    # The compiler can only warn and ignore the option if not recognized
+    # So say no if there are warnings
+      if test -s conftest.err; then
+	echo "$ac_t"no 1>&6
+	compiler_rtti_exceptions=no
+      else
+	echo "$ac_t"yes 1>&6
+	compiler_rtti_exceptions=yes
+      fi
+  else
+    # Append any errors to the config.log.
+    cat conftest.err 1>&5
+    compiler_rtti_exceptions=no
+    echo "$ac_t"no 1>&6
+  fi
+  CFLAGS="$save_CFLAGS"
+  $rm conftest*
+
+  if test "$compiler_rtti_exceptions" = "yes"; then
+    no_builtin_flag=' -fno-builtin -fno-rtti -fno-exceptions'
+  else
+    no_builtin_flag=' -fno-builtin'
+  fi
+  
 fi
 
 # Check for any special shared library compilation flags.
@@ -475,36 +876,27 @@ if test -n "$special_shlib_compile_flags"; then
   fi
 fi
 
-# See if we are using a broken GCC collect2 program.
-if test "$with_gcc" = yes; then
-  echo $ac_n "checking for broken GCC collect2... $ac_c" 1>&6
-
-  # FIXME: Run a test here, instead of relying on the canonical system name.
-  case "$host_os" in
-  aix3*)
-    can_build_shared=no
-    echo $ac_t yes 1>&6
-    echo "$progname: to build shared libraries, set the CC env variable to \`xlc' and reconfigure" 1>&2
-    ;;
-  *)
-    echo $ac_t no 1>&6
-    ;;
-  esac
-fi
-
-echo $ac_n "checking for $compiler option to statically link programs... $ac_c" 1>&6
-if test -n "$link_static_flag"; then
-  echo $ac_t "$link_static_flag" 1>&6
+echo $ac_n "checking if $compiler static flag $link_static_flag works... $ac_c" 1>&6
+$rm conftest*
+echo 'main(){return(0);}' > conftest.c
+save_LDFLAGS="$LDFLAGS"
+LDFLAGS="$LDFLAGS $link_static_flag"
+echo "$progname:884: checking if $compiler static flag $link_static_flag works" >&5
+if { (eval echo $progname:885: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+  echo "$ac_t$link_static_flag" 1>&6
 else
-  echo $ac_t none 1>&6
+  echo "$ac_t"none 1>&6
+  link_static_flag=
 fi
+LDFLAGS="$save_LDFLAGS"
+$rm conftest*
 
 if test -z "$LN_S"; then
   # Check to see if we can use ln -s, or we need hard links.
   echo $ac_n "checking whether ln -s works... $ac_c" 1>&6
-  rm -f conftestdata
+  $rm conftestdata
   if ln -s X conftestdata 2>/dev/null; then
-    rm -f conftestdata
+    $rm conftestdata
     LN_S="ln -s"
   else
     LN_S=ln
@@ -516,81 +908,209 @@ if test -z "$LN_S"; then
   fi
 fi
 
-if test "$with_gnu_ld" != yes || test -z "$LD"; then
-  if test -z "$LD"; then
-    if test "$with_gnu_ld" = yes; then
-      echo $ac_n "checking for GNU ld... $ac_c" 1>&6
-    else
-      echo $ac_n "checking for non-GNU ld... $ac_c" 1>&6
-    fi
+# Make sure LD is an absolute path.
+if test -z "$LD"; then
+  ac_prog=ld
+  if test "$with_gcc" = yes; then
+    # Check if gcc -print-prog-name=ld gives a path.
+    echo $ac_n "checking for ld used by GCC... $ac_c" 1>&6
+    echo "$progname:917: checking for ld used by GCC" >&5
+    ac_prog=`($CC -print-prog-name=ld) 2>&5`
+    case "$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 are not 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
+    echo $ac_n "checking for GNU ld... $ac_c" 1>&6
+    echo "$progname:941: checking for GNU ld" >&5
+  else
+    echo $ac_n "checking for non-GNU ld""... $ac_c" 1>&6
+    echo "$progname:944: checking for non-GNU ld" >&5
+  fi
 
-    IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS="${IFS}:"
+  if test -z "$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 "$ac_dir/ld"; then
-	LD="$ac_dir/ld"
+      if test -f "$ac_dir/$ac_prog"; then
+	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 "$LD" -v 2>&1 < /dev/null | egrep '(GNU ld|with BFD)' > /dev/null; then
-	  test "$with_gnu_ld" = yes && break
+	if "$LD" -v 2>&1 < /dev/null | egrep '(GNU|with BFD)' > /dev/null; then
+	  test "$with_gnu_ld" != no && break
 	else
 	  test "$with_gnu_ld" != yes && break
 	fi
       fi
     done
     IFS="$ac_save_ifs"
+  fi
 
-    if test -n "$LD"; then
-      echo "$ac_t""$LD" 1>&6
-    else
-      echo "$ac_t""no" 1>&6
-    fi
-
-    if test -z "$LD"; then
-      echo "$progname: error: no acceptable ld found in \$PATH" 1>&2
-      exit 1
-    fi
+  if test -n "$LD"; then
+    echo "$ac_t$LD" 1>&6
+  else
+    echo "$ac_t"no 1>&6
   fi
 
-  echo $ac_n "checking whether we are using GNU ld... $ac_c" 1>&6
-  # I'd rather use --version here, but apparently some GNU ld's only accept -v.
-  if $LD -v 2>&1 </dev/null | egrep '(GNU ld|with BFD)' > /dev/null; then
-    with_gnu_ld=yes
+  if test -z "$LD"; then
+    echo "$progname: error: no acceptable ld found in \$PATH" 1>&2
+    exit 1
   fi
-  echo $ac_t "$with_gnu_ld" 1>&6
 fi
 
+# Check to see if it really is or is not GNU ld.
+echo $ac_n "checking if the linker ($LD) is GNU ld... $ac_c" 1>&6
+# I'd rather use --version here, but apparently some GNU ld's only accept -v.
+if $LD -v 2>&1 </dev/null | egrep '(GNU|with BFD)' 1>&5; then
+  with_gnu_ld=yes
+else
+  with_gnu_ld=no
+fi
+echo "$ac_t$with_gnu_ld" 1>&6
+
 # See if the linker supports building shared libraries.
 echo $ac_n "checking whether the linker ($LD) supports shared libraries... $ac_c" 1>&6
 
 allow_undefined_flag=
+no_undefined_flag=
+need_lib_prefix=unknown
+need_version=unknown
+# when you set need_version to no, make sure it does not cause -set_version
+# flags to be left without arguments
 archive_cmds=
-export_dynamic_flag=
+archive_expsym_cmds=
+old_archive_from_new_cmds=
+export_dynamic_flag_spec=
+whole_archive_flag_spec=
+thread_safe_flag_spec=
 hardcode_libdir_flag_spec=
 hardcode_libdir_separator=
 hardcode_direct=no
 hardcode_minus_L=no
-hardcode_runpath_var=no
 hardcode_shlibpath_var=unsupported
 runpath_var=
+always_export_symbols=no
+export_symbols_cmds='$NM $libobjs | $global_symbol_pipe | sed '\''s/.* //'\'' | sort | uniq > $export_symbols'
+# include_expsyms should be a list of space-separated symbols to be *always*
+# included in the symbol list
+include_expsyms=
+# exclude_expsyms can be an egrep regular expression of symbols to exclude
+# it will be wrapped by ` (' and `)$', so one must not match beginning or
+# end of line.  Example: `a|bc|.*d.*' will exclude the symbols `a' and `bc',
+# as well as any symbol that contains `d'.
+exclude_expsyms=
+
+case "$host_os" in
+cygwin* | mingw*)
+  # FIXME: the MSVC++ port hasn't been tested in a loooong time
+  # When not using gcc, we currently assume that we are using
+  # Microsoft Visual C++.
+  if test "$with_gcc" != yes; then
+    with_gnu_ld=no
+  fi
+  ;;
+
+freebsd2* | sunos4*)
+  exclude_expsyms="_GLOBAL_OFFSET_TABLE_"
+  ;;
+
+esac
 
 ld_shlibs=yes
 if test "$with_gnu_ld" = yes; then
-  # See if GNU ld supports shared libraries.
+  # If archive_cmds runs LD, not CC, wlarc should be empty
+  wlarc='${wl}'
 
+  # See if GNU ld supports shared libraries.
   case "$host_os" in
+  aix3* | aix4*)
+    # On AIX, the GNU linker is very broken
+    ld_shlibs=no
+    cat <<EOF 1>&2
+
+*** Warning: the GNU linker, at least up to release 2.9.1, is reported
+*** to be unable to reliably create shared libraries on AIX.
+*** Therefore, libtool is disabling shared libraries support.  If you
+*** really care for shared libraries, you may want to modify your PATH
+*** so that a non-GNU linker is found, and then restart.
+
+EOF
+    ;;
+
+  amigaos*)
+    archive_cmds='$rm $objdir/a2ixlibrary.data~$echo "#define NAME $libname" > $objdir/a2ixlibrary.data~$echo "#define LIBRARY_ID 1" >> $objdir/a2ixlibrary.data~$echo "#define VERSION $major" >> $objdir/a2ixlibrary.data~$echo "#define REVISION $revision" >> $objdir/a2ixlibrary.data~$AR cru $lib $libobjs~$RANLIB $lib~(cd $objdir && a2ixlibrary -32)'
+    hardcode_libdir_flag_spec='-L$libdir'
+    hardcode_minus_L=yes
+    ;;
+
   sunos4*)
-    ld_shlibs=yes
+    archive_cmds='$LD -assert pure-text -Bstatic -o $lib $libobjs $deplibs $linkopts'
+    wlarc=
     hardcode_direct=yes
+    hardcode_minus_L=yes
     hardcode_shlibpath_var=no
     ;;
 
+  beos*)
+    if $LD --help 2>&1 | egrep ': supported targets:.* elf' > /dev/null; then
+      archive_cmds='$CC -nostart $libobjs $deplibs $linkopts ${wl}-soname $wl$soname -o $lib'
+    else
+      ld_shlibs=no
+    fi
+    ;;
+
+  cygwin* | mingw*)
+    # hardcode_libdir_flag_spec is actually meaningless, as there is
+    # no search path for DLLs.
+    hardcode_libdir_flag_spec='-L$libdir'
+    allow_undefined_flag=unsupported
+    always_export_symbols=yes
+
+    # Extract the symbol export list from an `--export-all' def file,
+    # then regenerate the def file from the symbol export list, so that
+    # the compiled dll only exports the symbol export list.
+    export_symbols_cmds='rm -f $objdir/$soname-ltdll.c~
+      sed -e "/^# \/\* ltdll.c starts here \*\//,/^# \/\* ltdll.c ends here \*\// { s/^# //; p; }" -e d < $0 > $objdir/$soname-ltdll.c~
+      (cd $objdir && $CC -c $soname-ltdll.c)~
+      $DLLTOOL --export-all --exclude-symbols DllMain@12,_cygwin_dll_entry@12,_cygwin_noncygwin_dll_entry@12 --output-def $objdir/$soname-def  $objdir/$soname-ltdll.$objext $libobjs~
+      sed -e "1,/EXPORTS/d" -e "s/ @ [0-9]* ; *//" < $objdir/$soname-def > $export_symbols'
+
+    archive_expsym_cmds='echo EXPORTS > $objdir/$soname-def~
+      _lt_hint=1;
+      for symbol in `cat $export_symbols`; do
+        echo "	\$symbol @ \$_lt_hint ; " >> $objdir/$soname-def;
+	_lt_hint=`expr 1 + \$_lt_hint`;
+      done~
+      $CC -Wl,--base-file,$objdir/$soname-base -Wl,--dll -nostartfiles -Wl,-e,__cygwin_dll_entry@12 -o $lib $objdir/$soname-ltdll.$objext $libobjs $deplibs $linkopts~
+      $DLLTOOL --as=$AS --dllname $soname --exclude-symbols DllMain@12,_cygwin_dll_entry@12,_cygwin_noncygwin_dll_entry@12 --def $objdir/$soname-def --base-file $objdir/$soname-base --output-exp $objdir/$soname-exp~
+      $CC -Wl,--base-file,$objdir/$soname-base $objdir/$soname-exp -Wl,--dll -nostartfiles -Wl,-e,__cygwin_dll_entry@12 -o $lib $objdir/$soname-ltdll.$objext $libobjs $deplibs $linkopts~
+      $DLLTOOL --as=$AS --dllname $soname --exclude-symbols DllMain@12,_cygwin_dll_entry@12,_cygwin_noncygwin_dll_entry@12 --def $objdir/$soname-def --base-file $objdir/$soname-base --output-exp $objdir/$soname-exp~
+      $CC $objdir/$soname-exp -Wl,--dll -nostartfiles -Wl,-e,__cygwin_dll_entry@12 -o $lib $objdir/$soname-ltdll.$objext $libobjs $deplibs $linkopts'
+
+      old_archive_from_new_cmds='$DLLTOOL --as=$AS --dllname $soname --def $objdir/$soname-def --output-lib $objdir/$libname.a'
+    ;;
+
   *)
     if $LD --help 2>&1 | egrep ': supported targets:.* elf' > /dev/null; then
-      runpath_var=LD_RUN_PATH
-      hardcode_runpath_var=yes
-      ld_shlibs=yes
+      archive_cmds='$CC -shared $libobjs $deplibs $linkopts ${wl}-soname $wl$soname -o $lib'
+      archive_expsym_cmds='$CC -shared $libobjs $deplibs $linkopts ${wl}-soname $wl$soname ${wl}-retain-symbols-file $wl$export_symbols -o $lib'
     else
       ld_shlibs=no
     fi
@@ -598,121 +1118,428 @@ if test "$with_gnu_ld" = yes; then
   esac
 
   if test "$ld_shlibs" = yes; then
-    archive_cmds='$cc -shared ${wl}-soname $wl$soname -o $lib$libobjs$deplibs'
-    hardcode_libdir_flag_spec='${wl}-rpath $wl$libdir'
-    export_dynamic_flag='${wl}-export-dynamic'
+    runpath_var=LD_RUN_PATH
+    hardcode_libdir_flag_spec='${wl}--rpath ${wl}$libdir'
+    export_dynamic_flag_spec='${wl}--export-dynamic'
+    whole_archive_flag_spec="$wlarc"'--whole-archive$convenience '"$wlarc"'--no-whole-archive'
   fi
 else
   # PORTME fill in a description of your system's linker (not GNU ld)
   case "$host_os" in
   aix3*)
     allow_undefined_flag=unsupported
-    archive_cmds='/usr/ucb/nm$libobjs | egrep \" [BD] \" | sed \"s/^.* //\" > $lib.exp;$LD -o $objdir/$soname$libobjs -bE:$lib.exp -T512 -H512 -bM:SRE -lc$deplibs;$AR cru $lib $objdir/$soname'
+    always_export_symbols=yes
+    archive_expsym_cmds='$LD -o $objdir/$soname $libobjs $deplibs $linkopts -bE:$export_symbols -T512 -H512 -bM:SRE~$AR cru $lib $objdir/$soname'
     # Note: this linker hardcodes the directories in LIBPATH if there
     # are no directories specified by -L.
     hardcode_minus_L=yes
+    if test "$with_gcc" = yes && test -z "$link_static_flag"; then
+      # Neither direct hardcoding nor static linking is supported with a
+      # broken collect2.
+      hardcode_direct=unsupported
+    fi
     ;;
 
   aix4*)
-    allow_undefined_flag=unsupported
-    archive_cmds='/bin/nm -B$libobjs | egrep \" [BD] \" | sed \"s/^.* //\" > $lib.exp;$cc -o $objdir/$soname$libobjs ${wl}-bE:$lib.exp ${wl}-bM:SRE ${wl}-bnoentry$deplibs;$AR cru $lib $objdir/$soname'
-    hardcode_direct=yes
+    allow_undefined_flag=
+    if test "$with_gcc" = yes; then
+      if strings `${CC} -print-prog-name=collect2` | \
+	 grep resolve_lib_name >/dev/null
+      then
+	# We have reworked collect2
+	hardcode_direct=yes
+      else
+	# We have old collect2
+	hardcode_direct=unsupported
+      fi
+      archive_cmds='$CC -shared ${wl}-bnoentry -o $objdir/$soname $libobjs $deplibs $linkopts'
+    else
+      always_export_symbols=yes
+      archive_expsym_cmds='$CC -o $objdir/$soname $libobjs $deplibs $linkopts ${wl}-bE:$export_symbols ${wl}-bM:SRE ${wl}-bnoentry'
+      hardcode_direct=yes
+    fi
     hardcode_minus_L=yes
+    # Though LIBPATH variable hardcodes shlibpath into executable,
+    # it doesn't affect searching for -l* libraries; this confuses
+    # tests in mdemo.
+    hardcode_shlibpath_var=unsupported
+    hardcode_libdir_flag_spec='-L$libdir'
+   ;;
+
+  amigaos*)
+    archive_cmds='$rm $objdir/a2ixlibrary.data~$echo "#define NAME $libname" > $objdir/a2ixlibrary.data~$echo "#define LIBRARY_ID 1" >> $objdir/a2ixlibrary.data~$echo "#define VERSION $major" >> $objdir/a2ixlibrary.data~$echo "#define REVISION $revision" >> $objdir/a2ixlibrary.data~$AR cru $lib $libobjs~$RANLIB $lib~(cd $objdir && a2ixlibrary -32)'
+    hardcode_libdir_flag_spec='-L$libdir'
+    hardcode_minus_L=yes
+    ;;
+
+  cygwin* | mingw*)
+    # When not using gcc, we currently assume that we are using
+    # Microsoft Visual C++.
+    # hardcode_libdir_flag_spec is actually meaningless, as there is
+    # no search path for DLLs.
+    hardcode_libdir_flag_spec=' '
+    allow_undefined_flag=unsupported
+    # Tell ltmain to make .lib files, not .a files.
+    libext=lib
+    # FIXME: Setting linknames here is a bad hack.
+    archive_cmds='$CC -o $lib $libobjs $linkopts `echo "$deplibs" | sed -e '\''s/ -lc$//'\''` -link -dll~linknames='
+    # The linker will automatically build a .lib file if we build a DLL.
+    old_archive_from_new_cmds='true'
+    # FIXME: Should let the user specify the lib program.
+    old_archive_cmds='lib /OUT:$oldlib$oldobjs'
+    fix_srcfile_path='`cygpath -w $srcfile`'
+    ;;
+
+  freebsd1*)
+    ld_shlibs=no
+    can_build_shared=no
     ;;
 
   # FreeBSD 2.2.[012] allows us to include c++rt0.o to get C++ constructor
   # support.  Future versions do this automatically, but an explicit c++rt0.o
-  # doesn't break anything, and helps significantly (at the cost of a little
+  # does not break anything, and helps significantly (at the cost of a little
   # extra space).
   freebsd2.2*)
-    archive_cmds='$LD -Bshareable -o $lib$libobjs$deplibs /usr/lib/c++rt0.o'
+    archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linkopts /usr/lib/c++rt0.o'
+    hardcode_libdir_flag_spec='-R$libdir'
     hardcode_direct=yes
-    hardcode_minus_L=yes
+    hardcode_minus_L=no # verified on 2.2.6
     hardcode_shlibpath_var=no
     ;;
 
-  # Unfortunately, older versions of FreeBSD 2 don't have this feature.
+  # Unfortunately, older versions of FreeBSD 2 do not have this feature.
   freebsd2*)
-    archive_cmds='$LD -Bshareable -o $lib$libobjs$deplibs'
+    archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linkopts'
     hardcode_direct=yes
     hardcode_minus_L=yes
     hardcode_shlibpath_var=no
     ;;
 
-  # FreeBSD 3, at last, uses gcc -shared to do shared libraries.
-  freebsd3*)
-    archive_cmds='$CC -shared -o $lib$libobjs$deplibs'
+  # FreeBSD 3 and greater uses gcc -shared to do shared libraries.
+  freebsd*)
+    archive_cmds='$CC -shared -o $lib $libobjs $deplibs $linkopts'
+    hardcode_libdir_flag_spec='-R$libdir'
     hardcode_direct=yes
-    hardcode_minusL=yes
+    hardcode_minus_L=no
     hardcode_shlibpath_var=no
     ;;
 
   hpux9*)
-    archive_cmds='$rm $objdir/$soname;$LD -b +s +b $install_libdir -o $objdir/$soname$libobjs$deplibs;mv $objdir/$soname $lib'
+    archive_cmds='$rm $objdir/$soname~$LD -b +s +b $install_libdir -o $objdir/$soname $libobjs $deplibs $linkopts~test $objdir/$soname = $lib || mv $objdir/$soname $lib'
     hardcode_libdir_flag_spec='${wl}+b ${wl}$libdir'
     hardcode_direct=yes
     hardcode_minus_L=yes
+    export_dynamic_flag_spec='${wl}-E'
     ;;
 
-  hpux10*)
-    archive_cmds='$LD -b +h $soname +s +b $install_libdir -o $lib$libobjs$deplibs'
+  hpux10* | hpux11*)
+    archive_cmds='$LD -b +h $soname +s +b $install_libdir -o $lib $libobjs $deplibs $linkopts'
     hardcode_libdir_flag_spec='${wl}+b ${wl}$libdir'
     hardcode_direct=yes
     hardcode_minus_L=yes
+    export_dynamic_flag_spec='${wl}-E'
     ;;
 
   irix5* | irix6*)
-    archive_cmds='$LD -shared -o $lib -soname $soname -set_version $verstring$libobjs -lc$deplibs'
+    if test "$with_gcc" = yes; then
+      archive_cmds='$CC -shared $libobjs $deplibs $linkopts ${wl}-soname ${wl}$soname `test -n "$verstring" && echo ${wl}-set_version ${wl}$verstring` -o $lib'
+    else
+      archive_cmds='$LD -shared $libobjs $deplibs $linkopts -soname $soname `test -n "$verstring" && echo -set_version $verstring` -o $lib'
+    fi
     hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
+    hardcode_libdir_separator=:
+    ;;
+
+  netbsd*)
+    if echo __ELF__ | $CC -E - | grep __ELF__ >/dev/null; then
+      archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linkopts'  # a.out
+    else
+      archive_cmds='$LD -shared -o $lib $libobjs $deplibs $linkopts'      # ELF
+    fi
+    hardcode_libdir_flag_spec='${wl}-R$libdir'
+    hardcode_direct=yes
+    hardcode_shlibpath_var=no
     ;;
 
-  netbsd* | openbsd*)
-    # Tested with NetBSD 1.2 ld
-    archive_cmds='$LD -Bshareable -o $lib$libobjs$deplibs'
+  openbsd*)
+    archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linkopts'
     hardcode_libdir_flag_spec='-R$libdir'
     hardcode_direct=yes
     hardcode_shlibpath_var=no
     ;;
 
+  os2*)
+    hardcode_libdir_flag_spec='-L$libdir'
+    hardcode_minus_L=yes
+    allow_undefined_flag=unsupported
+    archive_cmds='$echo "LIBRARY $libname INITINSTANCE" > $objdir/$libname.def~$echo "DESCRIPTION \"$libname\"" >> $objdir/$libname.def~$echo DATA >> $objdir/$libname.def~$echo " SINGLE NONSHARED" >> $objdir/$libname.def~$echo EXPORTS >> $objdir/$libname.def~emxexp $libobjs >> $objdir/$libname.def~$CC -Zdll -Zcrtdll -o $lib $libobjs $deplibs $linkopts $objdir/$libname.def'
+    old_archive_from_new_cmds='emximp -o $objdir/$libname.a $objdir/$libname.def'
+    ;;
+
   osf3* | osf4*)
-    allow_undefined_flag=' -expect_unresolved'
-    archive_cmds='$LD -shared${allow_undefined_flag} -o $lib -soname $soname -set_version $verstring$libobjs -lc$deplibs'
+    if test "$with_gcc" = yes; then
+      allow_undefined_flag=' ${wl}-expect_unresolved ${wl}\*'
+      archive_cmds='$CC -shared${allow_undefined_flag} $libobjs $deplibs $linkopts ${wl}-soname ${wl}$soname `test -n "$verstring" && echo ${wl}-set_version ${wl}$verstring` -o $lib'
+    else
+      allow_undefined_flag=' -expect_unresolved \*'
+      archive_cmds='$LD -shared${allow_undefined_flag} $libobjs $deplibs $linkopts -soname $soname `test -n "$verstring" && echo -set_version $verstring` -o $lib'
+    fi
     hardcode_libdir_flag_spec='${wl}-rpath ${wl}$libdir'
     hardcode_libdir_separator=:
     ;;
 
   sco3.2v5*)
-    archive_cmds='$LD -G -o $lib$libobjs$deplibs'
+    archive_cmds='$LD -G -o $lib $libobjs $deplibs $linkopts'
     hardcode_direct=yes
     ;;
 
-  solaris2*)
-    archive_cmds='$LD -G -z text -h $soname -o $lib$libobjs$deplibs'
+  solaris*)
+    no_undefined_flag=' -z text'
+    # $CC -shared without GNU ld will not create a library from C++
+    # object files and a static libstdc++, better avoid it by now
+    archive_cmds='$LD -G${allow_undefined_flag} -h $soname -o $lib $libobjs $deplibs $linkopts'
+    archive_expsym_cmds='$echo "{ global:" > $lib.exp~cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $lib.exp~$echo "local: *; };" >> $lib.exp~
+		$LD -G${allow_undefined_flag} -M $lib.exp -h $soname -o $lib $libobjs $deplibs $linkopts~$rm $lib.exp'
     hardcode_libdir_flag_spec='-R$libdir'
     hardcode_shlibpath_var=no
     ;;
 
   sunos4*)
-    archive_cmds='$LD -assert pure-text -Bstatic -o $lib$libobjs'
+    # Why do we need -Bstatic?  To avoid inter-library dependencies, maybe...
+    if test "$with_gcc" = yes; then
+      # Use -fPIC here because libgcc is multilibbed
+      archive_cmds='$CC -shared ${wl}-Bstatic -fPIC -o $lib $libobjs $deplibs $linkopts'
+    else
+      archive_cmds='$LD -assert pure-text -Bstatic -o $lib $libobjs $deplibs $linkopts'
+    fi
     hardcode_libdir_flag_spec='-L$libdir'
     hardcode_direct=yes
     hardcode_minus_L=yes
     hardcode_shlibpath_var=no
     ;;
 
+  sysv4.3*)
+    archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linkopts'
+    hardcode_direct=no
+    hardcode_minus_L=no
+    hardcode_shlibpath_var=no
+    export_dynamic_flag_spec='-Bexport'
+    ;;
+
+  uts4*)
+    archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linkopts'
+    hardcode_libdir_flag_spec='-L$libdir'
+    hardcode_direct=no
+    hardcode_minus_L=no
+    hardcode_shlibpath_var=no
+    ;;
+
+  dgux*)
+    archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linkopts'
+    hardcode_libdir_flag_spec='-L$libdir'
+    hardcode_direct=no
+    hardcode_minus_L=no
+    hardcode_shlibpath_var=no
+    ;;
+
   *)
     ld_shlibs=no
     can_build_shared=no
     ;;
   esac
 fi
-echo $ac_t "$ld_shlibs" 1>&6
+echo "$ac_t$ld_shlibs" 1>&6
+
+if test -z "$NM"; then
+  echo $ac_n "checking for BSD-compatible nm... $ac_c" 1>&6
+  case "$NM" in
+  /* | [A-Za-z]:[/\\]*) ;; # Let the user override the test with a path.
+  *)
+    IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS="${IFS}${PATH_SEPARATOR}"
+    for ac_dir in $PATH /usr/ucb /usr/ccs/bin /bin; do
+      test -z "$ac_dir" && ac_dir=.
+      if test -f $ac_dir/nm; then
+	# Check to see if the nm accepts a BSD-compat flag.
+	# Adding the `sed 1q' prevents false positives on HP-UX, which says:
+	#   nm: unknown option "B" ignored
+	if ($ac_dir/nm -B /dev/null 2>&1 | sed '1q'; exit 0) | egrep /dev/null >/dev/null; then
+	  NM="$ac_dir/nm -B"
+	  break
+	elif ($ac_dir/nm -p /dev/null 2>&1 | sed '1q'; exit 0) | egrep /dev/null >/dev/null; then
+	  NM="$ac_dir/nm -p"
+	  break
+	else
+	  NM=${NM="$ac_dir/nm"} # keep the first match, but
+	  continue # so that we can try to find one that supports BSD flags
+	fi
+      fi
+    done
+    IFS="$ac_save_ifs"
+    test -z "$NM" && NM=nm
+    ;;
+  esac
+  echo "$ac_t$NM" 1>&6
+fi
+
+# Check for command to grab the raw symbol name followed by C symbol from nm.
+echo $ac_n "checking command to parse $NM output... $ac_c" 1>&6
+
+# These are sane defaults that work on at least a few old systems.
+# [They come from Ultrix.  What could be older than Ultrix?!! ;)]
+
+# Character class describing NM global symbol codes.
+symcode='[BCDEGRST]'
+
+# Regexp to match symbols that can be accessed directly from C.
+sympat='\([_A-Za-z][_A-Za-z0-9]*\)'
+
+# Transform the above into a raw symbol and a C symbol.
+symxfrm='\1 \2\3 \3'
+
+# Transform an extracted symbol line into a proper C declaration
+global_symbol_to_cdecl="sed -n -e 's/^. .* \(.*\)$/extern char \1;/p'"
+
+# Define system-specific variables.
+case "$host_os" in
+aix*)
+  symcode='[BCDT]'
+  ;;
+cygwin* | mingw*)
+  symcode='[ABCDGISTW]'
+  ;;
+hpux*) # Its linker distinguishes data from code symbols
+  global_symbol_to_cdecl="sed -n -e 's/^T .* \(.*\)$/extern char \1();/p' -e 's/^. .* \(.*\)$/extern char \1;/p'"
+  ;;
+irix*)
+  symcode='[BCDEGRST]'
+  ;;
+solaris*)
+  symcode='[BDT]'
+  ;;
+esac
+
+# If we're using GNU nm, then use its standard symbol codes.
+if $NM -V 2>&1 | egrep '(GNU|with BFD)' > /dev/null; then
+  symcode='[ABCDGISTW]'
+fi
+
+# Try without a prefix undercore, then with it.
+for ac_symprfx in "" "_"; do
+
+  # Write the raw and C identifiers.
+  global_symbol_pipe="sed -n -e 's/^.*[ 	]\($symcode\)[ 	][ 	]*\($ac_symprfx\)$sympat$/$symxfrm/p'"
+
+  # Check to see that the pipe works correctly.
+  pipe_works=no
+  $rm conftest*
+  cat > conftest.c <<EOF
+#ifdef __cplusplus
+extern "C" {
+#endif
+char nm_test_var;
+void nm_test_func(){}
+#ifdef __cplusplus
+}
+#endif
+main(){nm_test_var='a';nm_test_func();return(0);}
+EOF
+
+  echo "$progname:1447: checking if global_symbol_pipe works" >&5
+  if { (eval echo $progname:1448: \"$ac_compile\") 1>&5; (eval $ac_compile) 2>&5; } && test -s conftest.$objext; then
+    # Now try to grab the symbols.
+    nlist=conftest.nm
+    if { echo "$progname:1451: eval \"$NM conftest.$objext | $global_symbol_pipe > $nlist\"" >&5; eval "$NM conftest.$objext | $global_symbol_pipe > $nlist 2>&5"; } && test -s "$nlist"; then
+
+      # Try sorting and uniquifying the output.
+      if sort "$nlist" | uniq > "$nlist"T; then
+	mv -f "$nlist"T "$nlist"
+      else
+	rm -f "$nlist"T
+      fi
+
+      # Make sure that we snagged all the symbols we need.
+      if egrep ' nm_test_var$' "$nlist" >/dev/null; then
+	if egrep ' nm_test_func$' "$nlist" >/dev/null; then
+	  cat <<EOF > conftest.c
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+EOF
+	  # Now generate the symbol file.
+	  eval "$global_symbol_to_cdecl"' < "$nlist" >> conftest.c'
+
+	  cat <<EOF >> conftest.c
+#if defined (__STDC__) && __STDC__
+# define lt_ptr_t void *
+#else
+# define lt_ptr_t char *
+# define const
+#endif
+
+/* The mapping between symbol names and symbols. */
+const struct {
+  const char *name;
+  lt_ptr_t address;
+}
+lt_preloaded_symbols[] =
+{
+EOF
+	  sed 's/^. \(.*\) \(.*\)$/  {"\2", (lt_ptr_t) \&\2},/' < "$nlist" >> conftest.c
+	  cat <<\EOF >> conftest.c
+  {0, (lt_ptr_t) 0}
+};
+
+#ifdef __cplusplus
+}
+#endif
+EOF
+	  # Now try linking the two files.
+	  mv conftest.$objext conftestm.$objext
+	  save_LIBS="$LIBS"
+	  save_CFLAGS="$CFLAGS"
+	  LIBS="conftestm.$objext"
+	  CFLAGS="$CFLAGS$no_builtin_flag"
+	  if { (eval echo $progname:1503: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest; then
+	    pipe_works=yes
+	  else
+	    echo "$progname: failed program was:" >&5
+	    cat conftest.c >&5
+	  fi
+	  LIBS="$save_LIBS"
+	else
+	  echo "cannot find nm_test_func in $nlist" >&5
+	fi
+      else
+	echo "cannot find nm_test_var in $nlist" >&5
+      fi
+    else
+      echo "cannot run $global_symbol_pipe" >&5
+    fi
+  else
+    echo "$progname: failed program was:" >&5
+    cat conftest.c >&5
+  fi
+  $rm conftest*
+
+  # Do not use the global_symbol_pipe unless it works.
+  if test "$pipe_works" = yes; then
+    break
+  else
+    global_symbol_pipe=
+  fi
+done
+echo "$ac_t$pipe_works" 1>&6
+
+if test -z "$global_symbol_pipe"; then
+  global_symbol_to_cdecl=
+fi
 
 # Check hardcoding attributes.
 echo $ac_n "checking how to hardcode library paths into programs... $ac_c" 1>&6
 hardcode_action=
 if test -n "$hardcode_libdir_flag_spec" || \
-   test "$hardcode_runpath_var" = yes; then
+   test -n "$runpath_var"; then
 
   # We can hardcode non-existant directories.
   if test "$hardcode_direct" != no && \
@@ -725,77 +1552,195 @@ if test -n "$hardcode_libdir_flag_spec" || \
     # We can link without hardcoding, and we can hardcode nonexisting dirs.
     hardcode_action=immediate
   fi
-elif test "$hardcode_direct" != yes && \
-     test "$hardcode_minus_L" != yes && \
-     test "$hardcode_shlibpath_var" != yes; then
-  # We can't hardcode anything.
-  hardcode_action=unsupported
 else
-  # We can only hardcode existing directories.
-  hardcode_action=relink
+  # We cannot hardcode anything, or else we can only hardcode existing
+  # directories.
+  hardcode_action=unsupported
 fi
-echo $ac_t "$hardcode_action" 1>&6
-test "$hardcode_action" = unsupported && can_build_shared=no
+echo "$ac_t$hardcode_action" 1>&6
 
 
 reload_flag=
 reload_cmds='$LD$reload_flag -o $output$reload_objs'
 echo $ac_n "checking for $LD option to reload object files... $ac_c" 1>&6
-# PORTME Some linker may need a different reload flag.
+# PORTME Some linkers may need a different reload flag.
 reload_flag='-r'
-echo $ac_t "$reload_flag"
+echo "$ac_t$reload_flag" 1>&6
 test -n "$reload_flag" && reload_flag=" $reload_flag"
 
 # PORTME Fill in your ld.so characteristics
 library_names_spec=
+libname_spec='lib$name'
 soname_spec=
 postinstall_cmds=
+postuninstall_cmds=
 finish_cmds=
+finish_eval=
 shlibpath_var=
+shlibpath_overrides_runpath=unknown
 version_type=none
 dynamic_linker="$host_os ld.so"
-
+sys_lib_dlsearch_path_spec="/lib /usr/lib"
+sys_lib_search_path_spec="/lib /usr/lib /usr/local/lib"
+file_magic_cmd=
+file_magic_test_file=
+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.
 echo $ac_n "checking dynamic linker characteristics... $ac_c" 1>&6
 case "$host_os" in
-aix3* | aix4*)
+aix3*)
   version_type=linux
-  library_names_spec='$libname.so.$versuffix $libname.a'
+  library_names_spec='${libname}${release}.so$versuffix $libname.a'
   shlibpath_var=LIBPATH
 
   # AIX has no versioning support, so we append a major version to the name.
-  soname_spec='$libname.so.$major'
+  soname_spec='${libname}${release}.so$major'
   ;;
 
-freebsd2* | freebsd3*)
-  version_type=sunos
-  library_names_spec='$libname.so.$versuffix $libname.so'
-  finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir'
+aix4*)
+  version_type=linux
+  # AIX has no versioning support, so currently we can not hardcode correct
+  # soname into executable. Probably we can add versioning support to
+  # collect2, so additional links can be useful in future.
+  # We preserve .a as extension for shared libraries though AIX4.2
+  # and later linker supports .so
+  library_names_spec='${libname}${release}.so$versuffix ${libname}${release}.so$major $libname.a'
+  shlibpath_var=LIBPATH
+  deplibs_check_method=pass_all
+  ;;
+
+amigaos*)
+  library_names_spec='$libname.ixlibrary $libname.a'
+  # Create ${libname}_ixlibrary.a entries in /sys/libs.
+  finish_eval='for lib in `ls $libdir/*.ixlibrary 2>/dev/null`; do libname=`$echo "X$lib" | $Xsed -e '\''s%^.*/\([^/]*\)\.ixlibrary$%\1%'\''`; test $rm /sys/libs/${libname}_ixlibrary.a; $show "(cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a)"; (cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a) || exit 1; done'
+  ;;
+
+beos*)
+  library_names_spec='${libname}.so'
+  dynamic_linker="$host_os ld.so"
+  shlibpath_var=LIBRARY_PATH
+  ;;
+
+bsdi4*)
+  version_type=linux
+  library_names_spec='${libname}.so$major ${libname}.so'
+  soname_spec='${libname}.so'
+  finish_cmds='PATH="$PATH:/sbin" ldconfig $libdir'
+  shlibpath_var=LD_LIBRARY_PATH
+  deplibs_check_method='file_magic ELF 32-bit LSB shared object'
+  file_magic_cmd=/usr/bin/file
+  file_magic_test_file=/shlib/libc.so
+  sys_lib_search_path_spec="/shlib /usr/lib /usr/X11/lib /usr/contrib/lib /lib /usr/local/lib"
+  sys_lib_dlsearch_path_spec="/shlib /usr/lib /usr/local/lib"
+  # the default ld.so.conf also contains /usr/contrib/lib and
+  # /usr/X11R6/lib (/usr/X11 is a link to /usr/X11R6), but let us allow
+  # libtool to hard-code these into programs
+  ;;
+
+cygwin* | mingw*)
+  version_type=windows
+  if test "$with_gcc" = yes; then
+    library_names_spec='${libname}`echo ${release} | sed -e 's/[.]/-/g'`${versuffix}.dll $libname.a'
+  else
+    library_names_spec='${libname}`echo ${release} | sed -e 's/[.]/-/g'`${versuffix}.dll $libname.lib'
+  fi
+  dynamic_linker='Win32 ld.exe'
+  deplibs_check_method='file_magic file format pei*-i386.*architecture: i386'
+  file_magic_cmd='objdump -f'
+  need_lib_prefix=no
+  # FIXME: first we should search . and the directory the executable is in
+  shlibpath_var=PATH
+  ;;
+
+freebsd1*)
+  dynamic_linker=no
+  ;;
+  
+freebsd*)
+  objformat=`test -x /usr/bin/objformat && /usr/bin/objformat || echo aout`
+  version_type=freebsd-$objformat
+  case "$version_type" in
+    freebsd-elf*)
+      deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [LM]SB shared object'
+      file_magic_cmd=/usr/bin/file
+      file_magic_test_file=`echo /usr/lib/libc.so*`
+      library_names_spec='${libname}${release}.so$versuffix ${libname}${release}.so $libname.so'
+      need_version=no
+      need_lib_prefix=no
+      ;;
+    freebsd-*)
+      deplibs_check_method=unknown
+      library_names_spec='${libname}${release}.so$versuffix $libname.so$versuffix'
+      need_version=yes
+      ;;
+  esac
+  finish_cmds='PATH="$PATH:/sbin" OBJFORMAT="'"$objformat"'" ldconfig -m $libdir'
   shlibpath_var=LD_LIBRARY_PATH
   ;;
 
 gnu*)
-  version_type=sunos
-  library_names_spec='$libname.so.$versuffix'
+  version_type=linux
+  library_names_spec='${libname}${release}.so$versuffix ${libname}.so'
   shlibpath_var=LD_LIBRARY_PATH
   ;;
 
-hpux9* | hpux10*)
+hpux9* | hpux10* | hpux11*)
   # Give a soname corresponding to the major version so that dld.sl refuses to
   # link against other versions.
   dynamic_linker="$host_os dld.sl"
   version_type=sunos
+  need_lib_prefix=no
+  need_version=no
   shlibpath_var=SHLIB_PATH
-  library_names_spec='$libname.sl.$versuffix $libname.sl.$major $libname.sl'
-  soname_spec='$libname.sl.$major'
+  library_names_spec='${libname}${release}.sl$versuffix ${libname}${release}.sl$major $libname.sl'
+  soname_spec='${libname}${release}.sl$major'
   # HP-UX runs *really* slowly unless shared libraries are mode 555.
   postinstall_cmds='chmod 555 $lib'
   ;;
 
-irix5* | irix6*)
-  version_type=osf
-  soname_spec='$libname.so'
-  library_names_spec='$libname.so.$versuffix $libname.so'
+irix5*)
+  version_type=irix
+  soname_spec='${libname}${release}.so'
+  library_names_spec='${libname}${release}.so$versuffix ${libname}${release}.so $libname.so'
   shlibpath_var=LD_LIBRARY_PATH
+  deplibs_check_method="file_magic ELF 32-bit MSB dynamic lib MIPS - version 1" # or should it be pass_all?
+  file_magic_cmd=/usr/bin/file
+  file_magic_test_file=`echo /lib/libc.so*`
+  shlibpath_overrides_runpath=no
+  ;;
+
+irix6*)
+  version_type=irix
+  need_lib_prefix=no
+  need_version=no
+  soname_spec='${libname}${release}.so'
+  library_names_spec='${libname}${release}.so$versuffix ${libname}${release}.so $libname.so'
+  case "$LD" in # libtool.m4 will add one of these switches to LD
+  *-32|*"-32 ") libsuff= shlibsuff= libmagic=32-bit;;
+  *-n32|*"-n32 ") libsuff=32 shlibsuff=N32 libmagic=N32;;
+  *-64|*"-64 ") libsuff=64 shlibsuff=64 libmagic=64-bit;;
+  *) libsuff= shlibsuff= libmagic=never-match;;
+  esac
+  shlibpath_var=LD_LIBRARY${shlibsuff}_PATH
+  shlibpath_overrides_runpath=no
+  # even though /usr/local/lib is always searched, the man-page says
+  # shared libraries should not be installed there if they use an ABI
+  # different from -32, so we'd better not search for shared libraries
+  # there either
+  sys_lib_search_path_spec="/lib${libsuff} /usr/lib${libsuff} /usr/local/lib${libsuff}"
+  sys_lib_dlsearch_path_spec="/lib${libsuff} /usr/lib${libsuff} /usr/local/lib${libsuff}"
+  deplibs_check_method="file_magic ELF ${libmagic} MSB mips-[1234] dynamic lib MIPS - version 1" # or should it be pass_all?
+  file_magic_cmd=/usr/bin/file
+  file_magic_test_file=`echo /lib${libsuff}/libc.so*`
   ;;
 
 # No shared lib support for Linux oldld, aout, or coff.
@@ -806,10 +1751,16 @@ linux-gnuoldld* | linux-gnuaout* | linux-gnucoff*)
 # This must be Linux ELF.
 linux-gnu*)
   version_type=linux
-  library_names_spec='$libname.so.$versuffix $libname.so.$major $libname.so'
-  soname_spec='$libname.so.$major'
-  finish_cmds='PATH="\$PATH:/sbin" ldconfig -n $libdir'
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}.so$versuffix ${libname}${release}.so$major $libname.so'
+  soname_spec='${libname}${release}.so$major'
+  finish_cmds='PATH="$PATH:/sbin" ldconfig -n $libdir'
   shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=no
+  deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [LM]SB (shared object|dynamic lib )'
+  file_magic_cmd=/usr/bin/file
+  file_magic_test_file=`echo /lib/libc.so* /lib/libc-*.so`
 
   if test -f /lib/ld.so.1; then
     dynamic_linker='GNU ld.so'
@@ -822,184 +1773,910 @@ linux-gnu*)
   fi
   ;;
 
-netbsd* | openbsd*)
+netbsd*)
+  version_type=sunos
+  if echo __ELF__ | $CC -E - | grep __ELF__ >/dev/null; then
+    library_names_spec='${libname}${release}.so$versuffix ${libname}.so$versuffix'
+    finish_cmds='PATH="$PATH:/sbin" ldconfig -m $libdir'
+    dynamic_linker='NetBSD (a.out) ld.so'
+  else
+    library_names_spec='${libname}${release}.so$versuffix ${libname}${release}.so$major ${libname}${release}.so ${libname}.so'
+    soname_spec='${libname}${release}.so$major'
+    dynamic_linker='NetBSD ld.elf_so'
+  fi
+  shlibpath_var=LD_LIBRARY_PATH
+  ;;
+
+openbsd*)
   version_type=sunos
-  library_names_spec='$libname.so.$versuffix'
+  if test "$with_gnu_ld" = yes; then
+    need_lib_prefix=no
+    need_version=no
+  fi
+  library_names_spec='${libname}${release}.so$versuffix ${libname}.so$versuffix'
   finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir'
   shlibpath_var=LD_LIBRARY_PATH
   ;;
 
+os2*)
+  libname_spec='$name'
+  need_lib_prefix=no
+  library_names_spec='$libname.dll $libname.a'
+  dynamic_linker='OS/2 ld.exe'
+  shlibpath_var=LIBPATH
+  ;;
+
 osf3* | osf4*)
   version_type=osf
-  soname_spec='$libname.so'
-  library_names_spec='$libname.so.$versuffix $libname.so'
+  soname_spec='${libname}${release}.so'
+  library_names_spec='${libname}${release}.so$versuffix ${libname}${release}.so $libname.so'
   shlibpath_var=LD_LIBRARY_PATH
+  # deplibs_check_method='pass_all'
+  # Although pass_all appears to work, it copies symbols from static libraries
+  # into shared ones and exports them.  So, when a program is linked with two
+  # or more libraries that have got copies of the same symbols, link fails
+  # This was only tested on osf4:
+  deplibs_check_method='file_magic COFF format alpha shared library'
+  file_magic_cmd=/usr/bin/file
+  file_magic_test_file=/shlib/libc.so
+  sys_lib_search_path_spec="/usr/shlib /usr/ccs/lib /usr/lib/cmplrs/cc /usr/lib /usr/local/lib /var/shlib"
+  sys_lib_dlsearch_path_spec="$sys_lib_search_path_spec"
   ;;
 
 sco3.2v5*)
   version_type=osf
-  soname_spec='$libname.so.$major'
-  library_names_spec='$libname.so.$versuffix $libname.so.$major $libname.so'
+  soname_spec='${libname}${release}.so$major'
+  library_names_spec='${libname}${release}.so$versuffix ${libname}${release}.so$major $libname.so'
   shlibpath_var=LD_LIBRARY_PATH
   ;;
 
-solaris2*)
+solaris*)
   version_type=linux
-  library_names_spec='$libname.so.$versuffix $libname.so.$major $libname.so'
-  soname_spec='$libname.so.$major'
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}.so$versuffix ${libname}${release}.so$major $libname.so'
+  soname_spec='${libname}${release}.so$major'
   shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  # ldd complains unless libraries are executable
+  postinstall_cmds='chmod +x $lib'
+  deplibs_check_method="file_magic ELF [0-9][0-9]-bit [LM]SB dynamic lib"
+  file_magic_cmd=/usr/bin/file
+  file_magic_test_file=/lib/libc.so
   ;;
 
 sunos4*)
   version_type=sunos
-  library_names_spec='$libname.so.$versuffix'
+  library_names_spec='${libname}${release}.so$versuffix ${libname}.so$versuffix'
   finish_cmds='PATH="\$PATH:/usr/etc" ldconfig $libdir'
   shlibpath_var=LD_LIBRARY_PATH
+  shlibpath_overrides_runpath=yes
+  if test "$with_gnu_ld" = yes; then
+    need_lib_prefix=no
+  fi
+  need_version=yes
+  ;;
+
+sysv4.2uw2* | sysv4.3* | sysv5*)
+  version_type=linux
+  library_names_spec='${libname}${release}.so$versuffix ${libname}${release}.so$major $libname.so'
+  soname_spec='${libname}${release}.so$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  case "$host_vendor" in
+    ncr)
+      deplibs_check_method='pass_all'
+      ;;
+  esac
+  ;;
+
+uts4*)
+  version_type=linux
+  library_names_spec='${libname}${release}.so$versuffix ${libname}${release}.so$major $libname.so'
+  soname_spec='${libname}${release}.so$major'
+  shlibpath_var=LD_LIBRARY_PATH
+  ;;
+
+dgux*)
+  version_type=linux
+  need_lib_prefix=no
+  need_version=no
+  library_names_spec='${libname}${release}.so$versuffix ${libname}${release}.so$major $libname.so'
+  soname_spec='${libname}${release}.so$major'
+  shlibpath_var=LD_LIBRARY_PATH
   ;;
 
 *)
   dynamic_linker=no
   ;;
 esac
-echo "$ac_t""$dynamic_linker"
+echo "$ac_t$dynamic_linker" 1>&6
 test "$dynamic_linker" = no && can_build_shared=no
 
-# FIXME need to add library stripping features
-# strip -x works for most platforms, though not for static libraries on NetBSD
-# HP-UX requires "-r" for library stripping
-striplib=
-old_striplib=
+# Report the final consequences.
+echo "checking if libtool supports shared libraries... $can_build_shared" 1>&6
 
-#echo $ac_n "checking for static library strip program... $ac_c" 1>&6
-#if test -n "$old_striplib"; then
-#  echo $ac_t "$old_striplib" 1>&6
-#else
-#  echo $ac_t none 1>&6
-#fi
+if test -n "$file_magic_test_file" && test -n "$file_magic_cmd"; then
+  case "$deplibs_check_method" in
+  "file_magic "*)
+    file_magic_regex="`expr \"$deplibs_check_method\" : \"file_magic \(.*\)\"`"
+    if eval $file_magic_cmd \$file_magic_test_file 2> /dev/null |
+       egrep "$file_magic_regex" > /dev/null; then
+      :
+    else
+      cat <<EOF 1>&2
 
-#if test "$can_build_shared" = yes; then
-#  echo $ac_n "checking for shared library strip program... $ac_c" 1>&6
-#
-#  if test -n "$striplib"; then
-#    echo $ac_t "$striplib" 1>&6
-#  else
-#    echo $ac_t none 1>&6
-#  fi
-#fi
+*** 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
 
-# Report the consequences.
-echo "checking if libtool supports shared libraries... $can_build_shared" 1>&6
+EOF
+    fi ;;
+  esac
+fi
 
 echo $ac_n "checking whether to build shared libraries... $ac_c" 1>&6
 test "$can_build_shared" = "no" && enable_shared=no
 
-# On AIX, shared libraries and static libraries use the same namespace.
+# On AIX, shared libraries and static libraries use the same namespace, and
+# are all built from PIC.
 case "$host_os" in
-aix*)
+aix3*)
   test "$enable_shared" = yes && enable_static=no
   if test -n "$RANLIB"; then
-    archive_cmds="$archive_cmds;\$RANLIB \$lib"
+    archive_cmds="$archive_cmds~\$RANLIB \$lib"
     postinstall_cmds='$RANLIB $lib'
   fi
   ;;
+
+aix4*)
+  test "$enable_shared" = yes && enable_static=no
+  ;;
 esac
 
-echo "$ac_t""$enable_shared" 1>&6
+echo "$ac_t$enable_shared" 1>&6
 
 # Make sure either enable_shared or enable_static is yes.
 test "$enable_shared" = yes || enable_static=yes
 
 echo "checking whether to build static libraries... $enable_static" 1>&6
 
-ofile=libtool
-trap "$rm $ofile; exit 1" 1 2 15
-echo creating $ofile
-rm -fr $ofile
-cat <<EOF > $ofile
-#! /bin/sh
+if test "$hardcode_action" = relink; then
+  # Fast installation is not supported
+  enable_fast_install=no
+elif test "$shlibpath_overrides_runpath" = yes ||
+     test "$enable_shared" = no; then
+  # Fast installation is not necessary
+  enable_fast_install=needless
+fi
+
+echo $ac_n "checking for objdir... $ac_c" 1>&6
+rm -f .libs 2>/dev/null
+mkdir .libs 2>/dev/null
+if test -d .libs; then
+  objdir=.libs
+else
+  # MS-DOS does not allow filenames that begin with a dot.
+  objdir=_libs
+fi
+rmdir .libs 2>/dev/null
+echo "$ac_t$objdir" 1>&6
+
+if test "x$enable_dlopen" != xyes; then
+  enable_dlopen=unknown
+  enable_dlopen_self=unknown
+  enable_dlopen_self_static=unknown
+else
+if eval "test \"`echo '$''{'lt_cv_dlopen'+set}'`\" != set"; then
+  lt_cv_dlopen=no lt_cv_dlopen_libs=
+echo $ac_n "checking for dlopen""... $ac_c" 1>&6
+echo "$progname:1977: checking for dlopen" >&5
+if eval "test \"`echo '$''{'ac_cv_func_dlopen'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  cat > conftest.$ac_ext <<EOF
+#line 1982 "ltconfig"
+/* System header to define __stub macros and hopefully few prototypes,
+    which can conflict with char dlopen(); below.  */
+#include <assert.h>
+/* Override any gcc2 internal prototype to avoid an error.  */
+/* We use char because int might match the return type of a gcc2
+    builtin and then its argument prototype would still apply.  */
+char dlopen();
+
+int main() {
+
+/* The GNU C library defines this for functions which it implements
+    to always fail with ENOSYS.  Some functions are actually named
+    something starting with __ and the normal name is an alias.  */
+#if defined (__stub_dlopen) || defined (__stub___dlopen)
+choke me
+#else
+dlopen();
+#endif
+
+; return 0; }
+EOF
+if { (eval echo $progname:2004: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+  rm -rf conftest*
+  eval "ac_cv_func_dlopen=yes"
+else
+  echo "$progname: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -rf conftest*
+  eval "ac_cv_func_dlopen=no"
+fi
+rm -f conftest*
+fi
+
+if eval "test \"`echo '$ac_cv_func_'dlopen`\" = yes"; then
+  echo "$ac_t""yes" 1>&6
+  lt_cv_dlopen="dlopen"
+else
+  echo "$ac_t""no" 1>&6
+echo $ac_n "checking for dlopen in -ldl""... $ac_c" 1>&6
+echo "$progname:2022: checking for dlopen in -ldl" >&5
+ac_lib_var=`echo dl'_'dlopen | sed 'y%./+-%__p_%'`
+if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  ac_save_LIBS="$LIBS"
+LIBS="-ldl  $LIBS"
+cat > conftest.$ac_ext <<EOF
+#line 2030 "ltconfig"
+/* Override any gcc2 internal prototype to avoid an error.  */
+/* We use char because int might match the return type of a gcc2
+    builtin and then its argument prototype would still apply.  */
+char dlopen();
+
+int main() {
+dlopen()
+; return 0; }
+EOF
+if { (eval echo $progname:2040: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+  rm -rf conftest*
+  eval "ac_cv_lib_$ac_lib_var=yes"
+else
+  echo "$progname: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -rf conftest*
+  eval "ac_cv_lib_$ac_lib_var=no"
+fi
+rm -f conftest*
+LIBS="$ac_save_LIBS"
+
+fi
+if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then
+  echo "$ac_t""yes" 1>&6
+  lt_cv_dlopen="dlopen" lt_cv_dlopen_libs="-ldl"
+else
+  echo "$ac_t""no" 1>&6
+echo $ac_n "checking for dld_link in -ldld""... $ac_c" 1>&6
+echo "$progname:2059: checking for dld_link in -ldld" >&5
+ac_lib_var=`echo dld'_'dld_link | sed 'y%./+-%__p_%'`
+if eval "test \"`echo '$''{'ac_cv_lib_$ac_lib_var'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  ac_save_LIBS="$LIBS"
+LIBS="-ldld  $LIBS"
+cat > conftest.$ac_ext <<EOF
+#line 2067 "ltconfig"
+/* Override any gcc2 internal prototype to avoid an error.  */
+/* We use char because int might match the return type of a gcc2
+    builtin and then its argument prototype would still apply.  */
+char dld_link();
+
+int main() {
+dld_link()
+; return 0; }
+EOF
+if { (eval echo $progname:2077: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+  rm -rf conftest*
+  eval "ac_cv_lib_$ac_lib_var=yes"
+else
+  echo "$progname: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -rf conftest*
+  eval "ac_cv_lib_$ac_lib_var=no"
+fi
+rm -f conftest*
+LIBS="$ac_save_LIBS"
+
+fi
+if eval "test \"`echo '$ac_cv_lib_'$ac_lib_var`\" = yes"; then
+  echo "$ac_t""yes" 1>&6
+  lt_cv_dlopen="dld_link" lt_cv_dlopen_libs="-ldld"
+else
+  echo "$ac_t""no" 1>&6
+echo $ac_n "checking for shl_load""... $ac_c" 1>&6
+echo "$progname:2096: checking for shl_load" >&5
+if eval "test \"`echo '$''{'ac_cv_func_shl_load'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  cat > conftest.$ac_ext <<EOF
+#line 2101 "ltconfig"
+/* System header to define __stub macros and hopefully few prototypes,
+    which can conflict with char shl_load(); below.  */
+#include <assert.h>
+/* Override any gcc2 internal prototype to avoid an error.  */
+/* We use char because int might match the return type of a gcc2
+    builtin and then its argument prototype would still apply.  */
+char shl_load();
+
+int main() {
+
+/* The GNU C library defines this for functions which it implements
+    to always fail with ENOSYS.  Some functions are actually named
+    something starting with __ and the normal name is an alias.  */
+#if defined (__stub_shl_load) || defined (__stub___shl_load)
+choke me
+#else
+shl_load();
+#endif
+
+; return 0; }
+EOF
+if { (eval echo $progname:2123: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+  rm -rf conftest*
+  eval "ac_cv_func_shl_load=yes"
+else
+  echo "$progname: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -rf conftest*
+  eval "ac_cv_func_shl_load=no"
+fi
+rm -f conftest*
+fi
+
+if eval "test \"`echo '$ac_cv_func_'shl_load`\" = yes"; then
+  echo "$ac_t""yes" 1>&6
+  lt_cv_dlopen="shl_load"
+else
+  echo "$ac_t""no" 1>&6
+echo $ac_n "checking for LoadLibrary""... $ac_c" 1>&6
+echo "$progname:2141: checking for LoadLibrary" >&5
+if eval "test \"`echo '$''{'ac_cv_func_LoadLibrary'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  cat > conftest.$ac_ext <<EOF
+#line 2146 "ltconfig"
+/* System header to define __stub macros and hopefully few prototypes,
+    which can conflict with char LoadLibrary(); below.  */
+#include <assert.h>
+/* Override any gcc2 internal prototype to avoid an error.  */
+/* We use char because int might match the return type of a gcc2
+    builtin and then its argument prototype would still apply.  */
+char LoadLibrary();
+
+int main() {
+
+/* The GNU C library defines this for functions which it implements
+    to always fail with ENOSYS.  Some functions are actually named
+    something starting with __ and the normal name is an alias.  */
+#if defined (__stub_LoadLibrary) || defined (__stub___LoadLibrary)
+choke me
+#else
+LoadLibrary();
+#endif
+
+; return 0; }
+EOF
+if { (eval echo $progname:2168: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest${ac_exeext}; then
+  rm -rf conftest*
+  eval "ac_cv_func_LoadLibrary=yes"
+else
+  echo "$progname: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -rf conftest*
+  eval "ac_cv_func_LoadLibrary=no"
+fi
+rm -f conftest*
+fi
+
+if eval "test \"`echo '$ac_cv_func_'LoadLibrary`\" = yes"; then
+  echo "$ac_t""yes" 1>&6
+  lt_cv_dlopen="LoadLibrary"
+else
+  echo "$ac_t""no" 1>&6
+fi
+
+      
+fi
+
+    
+fi
+
+  
+fi
+
+
+fi
+
+fi
+
+  if test "x$lt_cv_dlopen" != xno; then
+    enable_dlopen=yes
+  fi
+
+  case "$lt_cv_dlopen" in
+  dlopen)
+for ac_hdr in dlfcn.h; do
+ac_safe=`echo "$ac_hdr" | sed 'y%./+-%__p_%'`
+echo $ac_n "checking for $ac_hdr""... $ac_c" 1>&6
+echo "$progname:2210: checking for $ac_hdr" >&5
+if eval "test \"`echo '$''{'ac_cv_header_$ac_safe'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  cat > conftest.$ac_ext <<EOF
+#line 2215 "ltconfig"
+#include <$ac_hdr>
+int fnord = 0;
+EOF
+ac_try="$ac_compile conftest.$ac_ext >/dev/null 2>conftest.out"
+{ (eval echo $progname:2220: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }
+ac_err=`grep -v '^ *+' conftest.out | grep -v "^conftest.${ac_ext}\$"`
+if test -z "$ac_err"; then
+  rm -rf conftest*
+  eval "ac_cv_header_$ac_safe=yes"
+else
+  echo "$ac_err" >&5
+  echo "$progname: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -rf conftest*
+  eval "ac_cv_header_$ac_safe=no"
+fi
+rm -f conftest*
+fi
+if eval "test \"`echo '$ac_cv_header_'$ac_safe`\" = yes"; then
+  echo "$ac_t""yes" 1>&6
+else
+  echo "$ac_t""no" 1>&6
+fi
+done
+
+    if test "x$ac_cv_header_dlfcn_h" = xyes; then
+      CPPFLAGS="$CPPFLAGS -DHAVE_DLFCN_H"
+    fi
+    eval LDFLAGS=\"\$LDFLAGS $export_dynamic_flag_spec\"
+    LIBS="$lt_cv_dlopen_libs $LIBS"
+
+  echo $ac_n "checking whether a program can dlopen itself""... $ac_c" 1>&6
+echo "$progname:2248: checking whether a program can dlopen itself" >&5
+if test "${lt_cv_dlopen_self+set}" = set; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  if test "$cross_compiling" = yes; then
+    lt_cv_dlopen_self=cross
+  else
+    cat > conftest.c <<EOF
+#line 2256 "ltconfig"
+
+#if HAVE_DLFCN_H
+#include <dlfcn.h>
+#endif
+
+#include <stdio.h>
 
-# libtool - Provide generalized library-building support services.
+#ifdef RTLD_GLOBAL
+# define LTDL_GLOBAL	RTLD_GLOBAL
+#else
+# ifdef DL_GLOBAL
+#  define LTDL_GLOBAL	DL_GLOBAL
+# else
+#  define LTDL_GLOBAL	0
+# endif
+#endif
+
+/* We may have to define LTDL_LAZY_OR_NOW in the command line if we
+   find out it does not work in some platform. */
+#ifndef LTDL_LAZY_OR_NOW
+# ifdef RTLD_LAZY
+#  define LTDL_LAZY_OR_NOW	RTLD_LAZY
+# else
+#  ifdef DL_LAZY
+#   define LTDL_LAZY_OR_NOW	DL_LAZY
+#  else
+#   ifdef RTLD_NOW
+#    define LTDL_LAZY_OR_NOW	RTLD_NOW
+#   else
+#    ifdef DL_NOW
+#     define LTDL_LAZY_OR_NOW	DL_NOW
+#    else
+#     define LTDL_LAZY_OR_NOW	0
+#    endif
+#   endif
+#  endif
+# endif
+#endif
+
+fnord() { int i=42;}
+main() { void *self, *ptr1, *ptr2; self=dlopen(0,LTDL_GLOBAL|LTDL_LAZY_OR_NOW);
+    if(self) { ptr1=dlsym(self,"fnord"); ptr2=dlsym(self,"_fnord");
+	       if(ptr1 || ptr2) exit(0); } exit(1); } 
+
+EOF
+if { (eval echo $progname:2302: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest && (./conftest; exit) 2>/dev/null
+then
+  lt_cv_dlopen_self=yes
+else
+  echo "$progname: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -fr conftest*
+  lt_cv_dlopen_self=no
+fi
+rm -fr conftest*
+fi
+
+fi
+
+echo "$ac_t""$lt_cv_dlopen_self" 1>&6
+
+  if test "$lt_cv_dlopen_self" = yes; then
+    LDFLAGS="$LDFLAGS $link_static_flag"
+  echo $ac_n "checking whether a statically linked program can dlopen itself""... $ac_c" 1>&6
+echo "$progname:2321: checking whether a statically linked program can dlopen itself" >&5
+if test "${lt_cv_dlopen_self_static+set}" = set; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  if test "$cross_compiling" = yes; then
+    lt_cv_dlopen_self_static=cross
+  else
+    cat > conftest.c <<EOF
+#line 2329 "ltconfig"
+
+#if HAVE_DLFCN_H
+#include <dlfcn.h>
+#endif
+
+#include <stdio.h>
+
+#ifdef RTLD_GLOBAL
+# define LTDL_GLOBAL	RTLD_GLOBAL
+#else
+# ifdef DL_GLOBAL
+#  define LTDL_GLOBAL	DL_GLOBAL
+# else
+#  define LTDL_GLOBAL	0
+# endif
+#endif
+
+/* We may have to define LTDL_LAZY_OR_NOW in the command line if we
+   find out it does not work in some platform. */
+#ifndef LTDL_LAZY_OR_NOW
+# ifdef RTLD_LAZY
+#  define LTDL_LAZY_OR_NOW	RTLD_LAZY
+# else
+#  ifdef DL_LAZY
+#   define LTDL_LAZY_OR_NOW	DL_LAZY
+#  else
+#   ifdef RTLD_NOW
+#    define LTDL_LAZY_OR_NOW	RTLD_NOW
+#   else
+#    ifdef DL_NOW
+#     define LTDL_LAZY_OR_NOW	DL_NOW
+#    else
+#     define LTDL_LAZY_OR_NOW	0
+#    endif
+#   endif
+#  endif
+# endif
+#endif
+
+fnord() { int i=42;}
+main() { void *self, *ptr1, *ptr2; self=dlopen(0,LTDL_GLOBAL|LTDL_LAZY_OR_NOW);
+    if(self) { ptr1=dlsym(self,"fnord"); ptr2=dlsym(self,"_fnord");
+    if(ptr1 || ptr2) exit(0); } exit(1); } 
+
+EOF
+if { (eval echo $progname:2375: \"$ac_link\") 1>&5; (eval $ac_link) 2>&5; } && test -s conftest && (./conftest; exit) 2>/dev/null
+then
+  lt_cv_dlopen_self_static=yes
+else
+  echo "$progname: failed program was:" >&5
+  cat conftest.$ac_ext >&5
+  rm -fr conftest*
+  lt_cv_dlopen_self_static=no
+fi
+rm -fr conftest*
+fi
+
+fi
+
+echo "$ac_t""$lt_cv_dlopen_self_static" 1>&6
+fi
+    ;;
+  esac
+
+  case "$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=$lt_cv_dlopen_self_static ;;
+  *) enable_dlopen_self_static=unknown ;;
+  esac
+fi
+
+# Copy echo and quote the copy, instead of the original, because it is
+# used later.
+ltecho="$echo"
+if test "X$ltecho" = "X$CONFIG_SHELL $0 --fallback-echo"; then
+   ltecho="$CONFIG_SHELL \$0 --fallback-echo"
+fi
+LTSHELL="$SHELL"
+
+LTCONFIG_VERSION="$VERSION"
+
+# Only quote variables if we're using ltmain.sh.
+case "$ltmain" in
+*.sh)
+  # Now quote all the things that may contain metacharacters.
+  for var in ltecho old_CC old_CFLAGS old_CPPFLAGS old_LD old_NM old_RANLIB \
+    old_LN_S old_DLLTOOL old_AS AR CC LD LN_S NM LTSHELL LTCONFIG_VERSION \
+    reload_flag reload_cmds wl \
+    pic_flag link_static_flag no_builtin_flag export_dynamic_flag_spec \
+    thread_safe_flag_spec whole_archive_flag_spec libname_spec \
+    library_names_spec soname_spec \
+    RANLIB old_archive_cmds old_archive_from_new_cmds old_postinstall_cmds \
+    old_postuninstall_cmds archive_cmds archive_expsym_cmds postinstall_cmds postuninstall_cmds \
+    file_magic_cmd export_symbols_cmds deplibs_check_method allow_undefined_flag no_undefined_flag \
+    finish_cmds finish_eval global_symbol_pipe global_symbol_to_cdecl \
+    hardcode_libdir_flag_spec hardcode_libdir_separator  \
+    sys_lib_search_path_spec sys_lib_dlsearch_path_spec \
+    compiler_c_o compiler_o_lo need_locks exclude_expsyms include_expsyms; do
+
+    case "$var" in
+    reload_cmds | old_archive_cmds | old_archive_from_new_cmds | \
+    old_postinstall_cmds | old_postuninstall_cmds | \
+    export_symbols_cmds | archive_cmds | archive_expsym_cmds | \
+    postinstall_cmds | postuninstall_cmds | \
+    finish_cmds | sys_lib_search_path_spec | sys_lib_dlsearch_path_spec)
+      # Double-quote double-evaled strings.
+      eval "$var=\\\"\`\$echo \"X\$$var\" | \$Xsed -e \"\$double_quote_subst\" -e \"\$sed_quote_subst\" -e \"\$delay_variable_subst\"\`\\\""
+      ;;
+    *)
+      eval "$var=\\\"\`\$echo \"X\$$var\" | \$Xsed -e \"\$sed_quote_subst\"\`\\\""
+      ;;
+    esac
+  done
+
+  case "$ltecho" in
+  *'\$0 --fallback-echo"')
+    ltecho=`$echo "X$ltecho" | $Xsed -e 's/\\\\\\\$0 --fallback-echo"$/$0 --fallback-echo"/'`
+    ;;
+  esac
+
+  trap "$rm \"$ofile\"; exit 1" 1 2 15
+  echo "creating $ofile"
+  $rm "$ofile"
+  cat <<EOF > "$ofile"
+#! $SHELL
+
+# `$echo "$ofile" | sed 's%^.*/%%'` - Provide generalized library-building support services.
+# Generated automatically by $PROGRAM (GNU $PACKAGE $VERSION$TIMESTAMP)
+# NOTE: Changes made to this file will be lost: look at ltconfig or ltmain.sh.
+#
+# Copyright (C) 1996-1999 Free Software Foundation, Inc.
+# 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.
 #
-# Generated automatically by $PROGRAM - GNU $PACKAGE $VERSION
-# This program was configured as follows,
-# on host `(hostname || uname -n) 2>/dev/null | sed 1q`:
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+#
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program that contains a
+# configuration script generated by Autoconf, you may include it under
+# the same distribution terms that you use for the rest of that program.
+
+# Sed that helps us avoid accidentally triggering echo(1) options like -n.
+Xsed="sed -e s/^X//"
+
+# The HP-UX ksh and POSIX shell print the target directory to stdout
+# if CDPATH is set.
+if test "\${CDPATH+set}" = set; then CDPATH=; export CDPATH; fi
+
+### BEGIN LIBTOOL CONFIG
+EOF
+  cfgfile="$ofile"
+  ;;
+
+*)
+  # Double-quote the variables that need it (for aesthetics).
+  for var in old_CC old_CFLAGS old_CPPFLAGS old_LD old_NM old_RANLIB \
+    old_LN_S old_DLLTOOL old_AS; do
+    eval "$var=\\\"\$var\\\""
+  done
+
+  # Just create a config file.
+  cfgfile="$ofile.cfg"
+  trap "$rm \"$cfgfile\"; exit 1" 1 2 15
+  echo "creating $cfgfile"
+  $rm "$cfgfile"
+  cat <<EOF > "$cfgfile"
+# `$echo "$cfgfile" | sed 's%^.*/%%'` - Libtool configuration file.
+# Generated automatically by $PROGRAM (GNU $PACKAGE $VERSION$TIMESTAMP)
+EOF
+  ;;
+esac
+
+cat <<EOF >> "$cfgfile"
+# Libtool was configured as follows, on host `(hostname || uname -n) 2>/dev/null | sed 1q`:
 #
-# CC="$old_CC" CFLAGS="$old_CFLAGS" CPPFLAGS="$old_CPPFLAGS" \\
-# LD="$old_LD" RANLIB="$old_RANLIB" LN_S="$old_LN_S" \\
+# CC=$old_CC CFLAGS=$old_CFLAGS CPPFLAGS=$old_CPPFLAGS \\
+# LD=$old_LD NM=$old_NM RANLIB=$old_RANLIB LN_S=$old_LN_S \\
+# DLLTOOL="$old_DLLTOOL" AS="$old_AS" \\
 #   $0$ltconfig_args
 #
 # Compiler and other test output produced by $progname, useful for
 # debugging $progname, is in ./config.log if it exists.
 
 # The version of $progname that generated this script.
-LTCONFIG_VERSION="$VERSION"
+LTCONFIG_VERSION=$LTCONFIG_VERSION
 
-# Whether or not to build libtool libraries.
+# Shell to use when invoking shell scripts.
+SHELL=$LTSHELL
+
+# Whether or not to build shared libraries.
 build_libtool_libs=$enable_shared
 
-# Whether or not to build old-style libraries.
+# Whether or not to build static libraries.
 build_old_libs=$enable_static
 
+# Whether or not to optimize for fast installation.
+fast_install=$enable_fast_install
+
 # The host system.
-host_alias="$host_alias"
-host="$host"
+host_alias=$host_alias
+host=$host
+
+# An echo program that does not interpret backslashes.
+echo=$ltecho
 
 # The archiver.
-AR='$AR'
+AR=$AR
+
+# The default C compiler.
+CC=$CC
 
 # The linker used to build libraries.
-LD='$LD'
+LD=$LD
 
 # Whether we need hard or soft links.
-LN_S='$LN_S'
+LN_S=$LN_S
+
+# A BSD-compatible nm program.
+NM=$NM
+
+# Used on cygwin: DLL creation program.
+DLLTOOL="$DLLTOOL"
+
+# Used on cygwin: assembler.
+AS="$AS"
+
+# The name of the directory that contains temporary libtool files.
+objdir=$objdir
 
 # How to create reloadable object files.
-reload_flag='$reload_flag'
-reload_cmds='$reload_cmds'
+reload_flag=$reload_flag
+reload_cmds=$reload_cmds
 
 # How to pass a linker flag through the compiler.
-wl='$wl'
+wl=$wl
+
+# Object file suffix (normally "o").
+objext="$objext"
+
+# Old archive suffix (normally "a").
+libext="$libext"
 
 # Additional compiler flags for building library objects.
-pic_flag='$pic_flag'
+pic_flag=$pic_flag
+
+# Does compiler simultaneously support -c and -o options
+compiler_c_o=$compiler_c_o
+
+# Can we write directly to a .lo ?
+compiler_o_lo=$compiler_o_lo
+
+# Must we lock files when doing compilation ?
+need_locks=$need_locks
+
+# Do we need the lib prefix for modules?
+need_lib_prefix=$need_lib_prefix
+
+# Do we need a version for libraries?
+need_version=$need_version
+
+# Whether dlopen is supported.
+dlopen=$enable_dlopen
+
+# Whether dlopen of programs is supported.
+dlopen_self=$enable_dlopen_self
+
+# Whether dlopen of statically linked programs is supported.
+dlopen_self_static=$enable_dlopen_self_static
 
 # Compiler flag to prevent dynamic linking.
-link_static_flag='$link_static_flag'
+link_static_flag=$link_static_flag
+
+# Compiler flag to turn off builtin functions.
+no_builtin_flag=$no_builtin_flag
 
 # Compiler flag to allow reflexive dlopens.
-export_dynamic_flag='$export_dynamic_flag'
+export_dynamic_flag_spec=$export_dynamic_flag_spec
+
+# Compiler flag to generate shared objects directly from archives.
+whole_archive_flag_spec=$whole_archive_flag_spec
 
-# Pattern to match compiler flags for creating libNAME_p libraries:
-profile_flag_pattern='$profile_flag_pattern'
+# Compiler flag to generate thread-safe objects.
+thread_safe_flag_spec=$thread_safe_flag_spec
 
 # Library versioning type.
 version_type=$version_type
 
+# Format of library name prefix.
+libname_spec=$libname_spec
+
 # List of archive names.  First name is the real one, the rest are links.
 # The last name is the one that the linker finds with -lNAME.
-library_names_spec='$library_names_spec'
+library_names_spec=$library_names_spec
 
 # The coded name of the library, if different from the real name.
-soname_spec='$soname_spec'
+soname_spec=$soname_spec
 
 # Commands used to build and install an old-style archive.
-RANLIB='$RANLIB'
-old_archive_cmds='$old_archive_cmds'
-old_postinstall_cmds='$old_postinstall_cmds'
+RANLIB=$RANLIB
+old_archive_cmds=$old_archive_cmds
+old_postinstall_cmds=$old_postinstall_cmds
+old_postuninstall_cmds=$old_postuninstall_cmds
+
+# Create an old-style archive from a shared archive.
+old_archive_from_new_cmds=$old_archive_from_new_cmds
 
 # Commands used to build and install a shared archive.
-archive_cmds='$archive_cmds'
-postinstall_cmds='$postinstall_cmds'
+archive_cmds=$archive_cmds
+archive_expsym_cmds=$archive_expsym_cmds
+postinstall_cmds=$postinstall_cmds
+postuninstall_cmds=$postuninstall_cmds
+
+# Method to check whether dependent libraries are shared objects.
+deplibs_check_method=$deplibs_check_method
+
+# Command to use when deplibs_check_method == file_magic
+file_magic_cmd=$file_magic_cmd
 
 # Flag that allows shared libraries with undefined symbols to be built.
-allow_undefined_flag='$allow_undefined_flag'
+allow_undefined_flag=$allow_undefined_flag
+
+# Flag that forces no undefined symbols.
+no_undefined_flag=$no_undefined_flag
 
 # Commands used to finish a libtool library installation in a directory.
-finish_cmds='$finish_cmds'
+finish_cmds=$finish_cmds
+
+# Same as above, but a single script fragment to be evaled but not shown.
+finish_eval=$finish_eval
+
+# Take the output of nm and produce a listing of raw symbols and C names.
+global_symbol_pipe=$global_symbol_pipe
 
-# How to strip a library file.
-striplib='$striplib'
-old_striplib='$old_striplib'
+# Transform the output of nm in a proper C declaration
+global_symbol_to_cdecl=$global_symbol_to_cdecl
 
 # This is the shared library runtime path variable.
 runpath_var=$runpath_var
@@ -1007,15 +2684,18 @@ runpath_var=$runpath_var
 # This is the shared library path variable.
 shlibpath_var=$shlibpath_var
 
+# Is shlibpath searched before the hard-coded library search path?
+shlibpath_overrides_runpath=$shlibpath_overrides_runpath
+
 # How to hardcode a shared library path into an executable.
 hardcode_action=$hardcode_action
 
 # Flag to hardcode \$libdir into a binary during linking.
 # This must work even if \$libdir does not exist.
-hardcode_libdir_flag_spec='$hardcode_libdir_flag_spec'
+hardcode_libdir_flag_spec=$hardcode_libdir_flag_spec
 
 # Whether we need a single -rpath flag with a separated argument.
-hardcode_libdir_separator='$hardcode_libdir_separator'
+hardcode_libdir_separator=$hardcode_libdir_separator
 
 # Set to yes if using DIR/libNAME.so during linking hardcodes DIR into the
 # resulting binary.
@@ -1025,37 +2705,115 @@ hardcode_direct=$hardcode_direct
 # resulting binary.
 hardcode_minus_L=$hardcode_minus_L
 
-# Set to yes if using RUNPATH_VAR=DIR during linking hardcodes DIR into the
-# resulting binary.
-hardcode_runpath_var=$hardcode_runpath_var
-
 # Set to yes if using SHLIBPATH_VAR=DIR during linking hardcodes DIR into
 # the resulting binary.
 hardcode_shlibpath_var=$hardcode_shlibpath_var
 
+# Compile-time system search path for libraries
+sys_lib_search_path_spec=$sys_lib_search_path_spec
+
+# Run-time system search path for libraries
+sys_lib_dlsearch_path_spec=$sys_lib_dlsearch_path_spec
+
+# Fix the shell variable \$srcfile for the compiler.
+fix_srcfile_path="$fix_srcfile_path"
+
+# Set to yes if exported symbols are required
+always_export_symbols=$always_export_symbols
+
+# The command to extract exported symbols
+export_symbols_cmds=$export_symbols_cmds
+
+# Symbols that should not be listed in the preloaded symbols
+exclude_expsyms=$exclude_expsyms
+
+# Symbols that must always be exported
+include_expsyms=$include_expsyms
+
 EOF
 
-# Detect if we are using a relative or absolute path to ltmain.sh.
 case "$ltmain" in
-/*) cat <<EOF2 >> $ofile
-# Execute the libtool backend.
-. $ltmain
-EOF2
+*.sh)
+  echo '### END LIBTOOL CONFIG' >> "$ofile"
+  echo >> "$ofile"
+  case "$host_os" in
+  aix3*)
+    cat <<\EOF >> "$ofile"
+
+# AIX sometimes has problems with the GCC collect2 program.  For some
+# reason, if we set the COLLECT_NAMES environment variable, the problems
+# vanish in a puff of smoke.
+if test "${COLLECT_NAMES+set}" != set; then
+  COLLECT_NAMES=
+  export COLLECT_NAMES
+fi
+EOF
+    ;;
+  esac
+
+  # Append the ltmain.sh script.
+  cat "$ltmain" >> "$ofile" || (rm -f "$ofile"; exit 1)
+
+  chmod +x "$ofile"
   ;;
-*) cat <<EOF3 >> $ofile
-# Find the path to this script.
-thisdir=\`echo "\$0" | sed -e 's%/[^/]*\$%%'\`
-test "X\$0" = "X\$thisdir" && thisdir=.
-
-# Execute the libtool backend.
-. \$thisdir/$ltmain
-EOF3
+
+*)
+  # Compile the libtool program.
+  echo "FIXME: would compile $ltmain"
   ;;
 esac
 
-echo 'exit 1' >> $ofile
+test -n "$cache_file" || exit 0
+
+# AC_CACHE_SAVE
+trap '' 1 2 15
+cat > confcache <<\EOF
+# This file is a shell script that caches the results of configure
+# tests run on this system so they can be shared between configure
+# scripts and configure runs.  It is not useful on other systems.
+# If it contains results you don't want to keep, you may remove or edit it.
+#
+# By default, configure uses ./config.cache as the cache file,
+# creating it if it does not exist already.  You can give configure
+# the --cache-file=FILE option to use a different cache file; that is
+# what configure does when it calls configure scripts in
+# subdirectories, so they share the cache.
+# Giving --cache-file=/dev/null disables caching, for debugging configure.
+# config.status only pays attention to the cache file if you give it the
+# --recheck option to rerun configure.
+#
+EOF
+# The following way of writing the cache mishandles newlines in values,
+# but we know of no workaround that is simple, portable, and efficient.
+# So, don't put newlines in cache variables' values.
+# Ultrix sh set writes to stderr and can't be redirected directly,
+# and sets the high bit in the cache file unless we assign to the vars.
+(set) 2>&1 |
+  case `(ac_space=' '; set | grep ac_space) 2>&1` in
+  *ac_space=\ *)
+    # `set' does not quote correctly, so add quotes (double-quote substitution
+    # turns \\\\ into \\, and sed turns \\ into \).
+    sed -n \
+      -e "s/'/'\\\\''/g" \
+      -e "s/^\\([a-zA-Z0-9_]*_cv_[a-zA-Z0-9_]*\\)=\\(.*\\)/\\1=\${\\1='\\2'}/p"
+    ;;
+  *)
+    # `set' quotes correctly as required by POSIX, so do not add quotes.
+    sed -n -e 's/^\([a-zA-Z0-9_]*_cv_[a-zA-Z0-9_]*\)=\(.*\)/\1=${\1=\2}/p'
+    ;;
+  esac >> confcache
+if cmp -s $cache_file confcache; then
+  :
+else
+  if test -w $cache_file; then
+    echo "updating cache $cache_file"
+    cat confcache > $cache_file
+  else
+    echo "not updating unwritable cache $cache_file"
+  fi
+fi
+rm -f confcache
 
-chmod +x $ofile
 exit 0
 
 # Local Variables: