From: Sergei Golovan
Subject: Replace tclconfig that comes with the upstream package
 by a newer one. Change configure.in to use this tclconfig.
Date: Sat, 22 Mar 2025 15:44:57 +0300

--- a/configure.in
+++ b/configure.in
@@ -27,7 +27,7 @@
 # as well as PKG_LIB_FILE and PKG_STUB_LIB_FILE.
 #--------------------------------------------------------------------
 
-TEA_INIT([3.7])
+TEA_INIT()
 
 AC_CONFIG_AUX_DIR(tclconfig)
 
@@ -190,4 +190,5 @@
 # which require substituting th AC variables in.  Include these here.
 #--------------------------------------------------------------------
 
-AC_OUTPUT([Makefile pkgIndex.tcl])
+AC_CONFIG_FILES([Makefile pkgIndex.tcl])
+AC_OUTPUT()
--- a/tclconfig/install-sh
+++ b/tclconfig/install-sh
@@ -1,119 +1,541 @@
 #!/bin/sh
+# install - install a program, script, or datafile
+
+scriptversion=2020-11-14.01; # UTC
 
+# This originates from X11R5 (mit/util/scripts/install.sh), which was
+# later released in X11R6 (xc/config/util/install.sh) with the
+# following copyright and license.
 #
-# install - install a program, script, or datafile
-# This comes from X11R5; it is not part of GNU.
+# Copyright (C) 1994 X Consortium
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to
+# deal in the Software without restriction, including without limitation the
+# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+# sell copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
+# X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+# AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNEC-
+# TION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #
-# $XConsortium: install.sh,v 1.2 89/12/18 14:47:22 jim Exp $
+# Except as contained in this notice, the name of the X Consortium shall not
+# be used in advertising or otherwise to promote the sale, use or other deal-
+# ings in this Software without prior written authorization from the X Consor-
+# tium.
+#
+#
+# FSF changes to this file are in the public domain.
+#
+# Calling this script install-sh is preferred over install.sh, to prevent
+# 'make' implicit rules from creating a file called install from it
+# when there is no Makefile.
 #
 # This script is compatible with the BSD install script, but was written
 # from scratch.
-#
 
+tab='	'
+nl='
+'
+IFS=" $tab$nl"
+
+# Set DOITPROG to "echo" to test this script.
+
+doit=${DOITPROG-}
+doit_exec=${doit:-exec}
+
+# Put in absolute file names if you don't have them in your path;
+# or use environment vars.
+
+chgrpprog=${CHGRPPROG-chgrp}
+chmodprog=${CHMODPROG-chmod}
+chownprog=${CHOWNPROG-chown}
+cmpprog=${CMPPROG-cmp}
+cpprog=${CPPROG-cp}
+mkdirprog=${MKDIRPROG-mkdir}
+mvprog=${MVPROG-mv}
+rmprog=${RMPROG-rm}
+stripprog=${STRIPPROG-strip}
+
+posix_mkdir=
+
+# Desired mode of installed file.
+mode=0755
+
+# Create dirs (including intermediate dirs) using mode 755.
+# This is like GNU 'install' as of coreutils 8.32 (2020).
+mkdir_umask=22
+
+backupsuffix=
+chgrpcmd=
+chmodcmd=$chmodprog
+chowncmd=
+mvcmd=$mvprog
+rmcmd="$rmprog -f"
+stripcmd=
 
-# set DOITPROG to echo to test this script
+src=
+dst=
+dir_arg=
+dst_arg=
 
-# Don't use :- since 4.3BSD and earlier shells don't like it.
-doit="${DOITPROG-}"
+copy_on_change=false
+is_target_a_directory=possibly
 
+usage="\
+Usage: $0 [OPTION]... [-T] SRCFILE DSTFILE
+   or: $0 [OPTION]... SRCFILES... DIRECTORY
+   or: $0 [OPTION]... -t DIRECTORY SRCFILES...
+   or: $0 [OPTION]... -d DIRECTORIES...
 
-# put in absolute paths if you don't have them in your path; or use env. vars.
+In the 1st form, copy SRCFILE to DSTFILE.
+In the 2nd and 3rd, copy all SRCFILES to DIRECTORY.
+In the 4th, create DIRECTORIES.
 
-mvprog="${MVPROG-mv}"
-cpprog="${CPPROG-cp}"
-chmodprog="${CHMODPROG-chmod}"
-chownprog="${CHOWNPROG-chown}"
-chgrpprog="${CHGRPPROG-chgrp}"
-stripprog="${STRIPPROG-strip}"
-rmprog="${RMPROG-rm}"
-
-instcmd="$mvprog"
-chmodcmd=""
-chowncmd=""
-chgrpcmd=""
-stripcmd=""
-rmcmd="$rmprog -f"
-mvcmd="$mvprog"
-src=""
-dst=""
-
-while [ x"$1" != x ]; do
-    case $1 in
-	-c) instcmd="$cpprog"
-	    shift
-	    continue;;
-
-	-m) chmodcmd="$chmodprog $2"
-	    shift
-	    shift
-	    continue;;
-
-	-o) chowncmd="$chownprog $2"
-	    shift
-	    shift
-	    continue;;
-
-	-g) chgrpcmd="$chgrpprog $2"
-	    shift
-	    shift
-	    continue;;
-
-	-s) stripcmd="$stripprog"
-	    shift
-	    continue;;
-
-	*)  if [ x"$src" = x ]
-	    then
-		src=$1
-	    else
-		dst=$1
-	    fi
-	    shift
-	    continue;;
-    esac
-done
+Options:
+     --help     display this help and exit.
+     --version  display version info and exit.
 
-if [ x"$src" = x ]
-then
-	echo "install:  no input file specified"
-	exit 1
-fi
+  -c            (ignored)
+  -C            install only if different (preserve data modification time)
+  -d            create directories instead of installing files.
+  -g GROUP      $chgrpprog installed files to GROUP.
+  -m MODE       $chmodprog installed files to MODE.
+  -o USER       $chownprog installed files to USER.
+  -p            pass -p to $cpprog.
+  -s            $stripprog installed files.
+  -S SUFFIX     attempt to back up existing files, with suffix SUFFIX.
+  -t DIRECTORY  install into DIRECTORY.
+  -T            report an error if DSTFILE is a directory.
 
-if [ x"$dst" = x ]
-then
-	echo "install:  no destination specified"
-	exit 1
-fi
+Environment variables override the default commands:
+  CHGRPPROG CHMODPROG CHOWNPROG CMPPROG CPPROG MKDIRPROG MVPROG
+  RMPROG STRIPPROG
 
+By default, rm is invoked with -f; when overridden with RMPROG,
+it's up to you to specify -f if you want it.
 
-# If destination is a directory, append the input filename; if your system
-# does not like double slashes in filenames, you may need to add some logic
+If -S is not specified, no backups are attempted.
 
-if [ -d $dst ]
-then
-	dst="$dst"/`basename $src`
-fi
+Email bug reports to bug-automake@gnu.org.
+Automake home page: https://www.gnu.org/software/automake/
+"
+
+while test $# -ne 0; do
+  case $1 in
+    -c) ;;
+
+    -C) copy_on_change=true;;
+
+    -d) dir_arg=true;;
+
+    -g) chgrpcmd="$chgrpprog $2"
+        shift;;
 
-# Make a temp file name in the proper directory.
+    --help) echo "$usage"; exit $?;;
 
-dstdir=`dirname $dst`
-dsttmp=$dstdir/#inst.$$#
+    -m) mode=$2
+        case $mode in
+          *' '* | *"$tab"* | *"$nl"* | *'*'* | *'?'* | *'['*)
+            echo "$0: invalid mode: $mode" >&2
+            exit 1;;
+        esac
+        shift;;
 
-# Move or copy the file name to the temp name
+    -o) chowncmd="$chownprog $2"
+        shift;;
 
-$doit $instcmd $src $dsttmp
+    -p) cpprog="$cpprog -p";;
 
-# and set any options; do chmod last to preserve setuid bits
+    -s) stripcmd=$stripprog;;
 
-if [ x"$chowncmd" != x ]; then $doit $chowncmd $dsttmp; fi
-if [ x"$chgrpcmd" != x ]; then $doit $chgrpcmd $dsttmp; fi
-if [ x"$stripcmd" != x ]; then $doit $stripcmd $dsttmp; fi
-if [ x"$chmodcmd" != x ]; then $doit $chmodcmd $dsttmp; fi
+    -S) backupsuffix="$2"
+        shift;;
 
-# Now rename the file to the real destination.
+    -t)
+        is_target_a_directory=always
+        dst_arg=$2
+        # Protect names problematic for 'test' and other utilities.
+        case $dst_arg in
+          -* | [=\(\)!]) dst_arg=./$dst_arg;;
+        esac
+        shift;;
 
-$doit $rmcmd $dst
-$doit $mvcmd $dsttmp $dst
+    -T) is_target_a_directory=never;;
 
+    --version) echo "$0 $scriptversion"; exit $?;;
+
+    --) shift
+        break;;
+
+    -*) echo "$0: invalid option: $1" >&2
+        exit 1;;
+
+    *)  break;;
+  esac
+  shift
+done
+
+# We allow the use of options -d and -T together, by making -d
+# take the precedence; this is for compatibility with GNU install.
+
+if test -n "$dir_arg"; then
+  if test -n "$dst_arg"; then
+    echo "$0: target directory not allowed when installing a directory." >&2
+    exit 1
+  fi
+fi
+
+if test $# -ne 0 && test -z "$dir_arg$dst_arg"; then
+  # When -d is used, all remaining arguments are directories to create.
+  # When -t is used, the destination is already specified.
+  # Otherwise, the last argument is the destination.  Remove it from $@.
+  for arg
+  do
+    if test -n "$dst_arg"; then
+      # $@ is not empty: it contains at least $arg.
+      set fnord "$@" "$dst_arg"
+      shift # fnord
+    fi
+    shift # arg
+    dst_arg=$arg
+    # Protect names problematic for 'test' and other utilities.
+    case $dst_arg in
+      -* | [=\(\)!]) dst_arg=./$dst_arg;;
+    esac
+  done
+fi
+
+if test $# -eq 0; then
+  if test -z "$dir_arg"; then
+    echo "$0: no input file specified." >&2
+    exit 1
+  fi
+  # It's OK to call 'install-sh -d' without argument.
+  # This can happen when creating conditional directories.
+  exit 0
+fi
+
+if test -z "$dir_arg"; then
+  if test $# -gt 1 || test "$is_target_a_directory" = always; then
+    if test ! -d "$dst_arg"; then
+      echo "$0: $dst_arg: Is not a directory." >&2
+      exit 1
+    fi
+  fi
+fi
+
+if test -z "$dir_arg"; then
+  do_exit='(exit $ret); exit $ret'
+  trap "ret=129; $do_exit" 1
+  trap "ret=130; $do_exit" 2
+  trap "ret=141; $do_exit" 13
+  trap "ret=143; $do_exit" 15
+
+  # Set umask so as not to create temps with too-generous modes.
+  # However, 'strip' requires both read and write access to temps.
+  case $mode in
+    # Optimize common cases.
+    *644) cp_umask=133;;
+    *755) cp_umask=22;;
+
+    *[0-7])
+      if test -z "$stripcmd"; then
+        u_plus_rw=
+      else
+        u_plus_rw='% 200'
+      fi
+      cp_umask=`expr '(' 777 - $mode % 1000 ')' $u_plus_rw`;;
+    *)
+      if test -z "$stripcmd"; then
+        u_plus_rw=
+      else
+        u_plus_rw=,u+rw
+      fi
+      cp_umask=$mode$u_plus_rw;;
+  esac
+fi
+
+for src
+do
+  # Protect names problematic for 'test' and other utilities.
+  case $src in
+    -* | [=\(\)!]) src=./$src;;
+  esac
+
+  if test -n "$dir_arg"; then
+    dst=$src
+    dstdir=$dst
+    test -d "$dstdir"
+    dstdir_status=$?
+    # Don't chown directories that already exist.
+    if test $dstdir_status = 0; then
+      chowncmd=""
+    fi
+  else
+
+    # Waiting for this to be detected by the "$cpprog $src $dsttmp" command
+    # might cause directories to be created, which would be especially bad
+    # if $src (and thus $dsttmp) contains '*'.
+    if test ! -f "$src" && test ! -d "$src"; then
+      echo "$0: $src does not exist." >&2
+      exit 1
+    fi
+
+    if test -z "$dst_arg"; then
+      echo "$0: no destination specified." >&2
+      exit 1
+    fi
+    dst=$dst_arg
+
+    # If destination is a directory, append the input filename.
+    if test -d "$dst"; then
+      if test "$is_target_a_directory" = never; then
+        echo "$0: $dst_arg: Is a directory" >&2
+        exit 1
+      fi
+      dstdir=$dst
+      dstbase=`basename "$src"`
+      case $dst in
+	*/) dst=$dst$dstbase;;
+	*)  dst=$dst/$dstbase;;
+      esac
+      dstdir_status=0
+    else
+      dstdir=`dirname "$dst"`
+      test -d "$dstdir"
+      dstdir_status=$?
+    fi
+  fi
+
+  case $dstdir in
+    */) dstdirslash=$dstdir;;
+    *)  dstdirslash=$dstdir/;;
+  esac
+
+  obsolete_mkdir_used=false
+
+  if test $dstdir_status != 0; then
+    case $posix_mkdir in
+      '')
+        # With -d, create the new directory with the user-specified mode.
+        # Otherwise, rely on $mkdir_umask.
+        if test -n "$dir_arg"; then
+          mkdir_mode=-m$mode
+        else
+          mkdir_mode=
+        fi
+
+        posix_mkdir=false
+	# The $RANDOM variable is not portable (e.g., dash).  Use it
+	# here however when possible just to lower collision chance.
+	tmpdir=${TMPDIR-/tmp}/ins$RANDOM-$$
+
+	trap '
+	  ret=$?
+	  rmdir "$tmpdir/a/b" "$tmpdir/a" "$tmpdir" 2>/dev/null
+	  exit $ret
+	' 0
+
+	# Because "mkdir -p" follows existing symlinks and we likely work
+	# directly in world-writeable /tmp, make sure that the '$tmpdir'
+	# directory is successfully created first before we actually test
+	# 'mkdir -p'.
+	if (umask $mkdir_umask &&
+	    $mkdirprog $mkdir_mode "$tmpdir" &&
+	    exec $mkdirprog $mkdir_mode -p -- "$tmpdir/a/b") >/dev/null 2>&1
+	then
+	  if test -z "$dir_arg" || {
+	       # Check for POSIX incompatibilities with -m.
+	       # HP-UX 11.23 and IRIX 6.5 mkdir -m -p sets group- or
+	       # other-writable bit of parent directory when it shouldn't.
+	       # FreeBSD 6.1 mkdir -m -p sets mode of existing directory.
+	       test_tmpdir="$tmpdir/a"
+	       ls_ld_tmpdir=`ls -ld "$test_tmpdir"`
+	       case $ls_ld_tmpdir in
+		 d????-?r-*) different_mode=700;;
+		 d????-?--*) different_mode=755;;
+		 *) false;;
+	       esac &&
+	       $mkdirprog -m$different_mode -p -- "$test_tmpdir" && {
+		 ls_ld_tmpdir_1=`ls -ld "$test_tmpdir"`
+		 test "$ls_ld_tmpdir" = "$ls_ld_tmpdir_1"
+	       }
+	     }
+	  then posix_mkdir=:
+	  fi
+	  rmdir "$tmpdir/a/b" "$tmpdir/a" "$tmpdir"
+	else
+	  # Remove any dirs left behind by ancient mkdir implementations.
+	  rmdir ./$mkdir_mode ./-p ./-- "$tmpdir" 2>/dev/null
+	fi
+	trap '' 0;;
+    esac
+
+    if
+      $posix_mkdir && (
+        umask $mkdir_umask &&
+        $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir"
+      )
+    then :
+    else
+
+      # mkdir does not conform to POSIX,
+      # or it failed possibly due to a race condition.  Create the
+      # directory the slow way, step by step, checking for races as we go.
+
+      case $dstdir in
+        /*) prefix='/';;
+        [-=\(\)!]*) prefix='./';;
+        *)  prefix='';;
+      esac
+
+      oIFS=$IFS
+      IFS=/
+      set -f
+      set fnord $dstdir
+      shift
+      set +f
+      IFS=$oIFS
+
+      prefixes=
+
+      for d
+      do
+        test X"$d" = X && continue
+
+        prefix=$prefix$d
+        if test -d "$prefix"; then
+          prefixes=
+        else
+          if $posix_mkdir; then
+            (umask $mkdir_umask &&
+             $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir") && break
+            # Don't fail if two instances are running concurrently.
+            test -d "$prefix" || exit 1
+          else
+            case $prefix in
+              *\'*) qprefix=`echo "$prefix" | sed "s/'/'\\\\\\\\''/g"`;;
+              *) qprefix=$prefix;;
+            esac
+            prefixes="$prefixes '$qprefix'"
+          fi
+        fi
+        prefix=$prefix/
+      done
+
+      if test -n "$prefixes"; then
+        # Don't fail if two instances are running concurrently.
+        (umask $mkdir_umask &&
+         eval "\$doit_exec \$mkdirprog $prefixes") ||
+          test -d "$dstdir" || exit 1
+        obsolete_mkdir_used=true
+      fi
+    fi
+  fi
+
+  if test -n "$dir_arg"; then
+    { test -z "$chowncmd" || $doit $chowncmd "$dst"; } &&
+    { test -z "$chgrpcmd" || $doit $chgrpcmd "$dst"; } &&
+    { test "$obsolete_mkdir_used$chowncmd$chgrpcmd" = false ||
+      test -z "$chmodcmd" || $doit $chmodcmd $mode "$dst"; } || exit 1
+  else
+
+    # Make a couple of temp file names in the proper directory.
+    dsttmp=${dstdirslash}_inst.$$_
+    rmtmp=${dstdirslash}_rm.$$_
+
+    # Trap to clean up those temp files at exit.
+    trap 'ret=$?; rm -f "$dsttmp" "$rmtmp" && exit $ret' 0
+
+    # Copy the file name to the temp name.
+    (umask $cp_umask &&
+     { test -z "$stripcmd" || {
+	 # Create $dsttmp read-write so that cp doesn't create it read-only,
+	 # which would cause strip to fail.
+	 if test -z "$doit"; then
+	   : >"$dsttmp" # No need to fork-exec 'touch'.
+	 else
+	   $doit touch "$dsttmp"
+	 fi
+       }
+     } &&
+     $doit_exec $cpprog "$src" "$dsttmp") &&
+
+    # and set any options; do chmod last to preserve setuid bits.
+    #
+    # If any of these fail, we abort the whole thing.  If we want to
+    # ignore errors from any of these, just make sure not to ignore
+    # errors from the above "$doit $cpprog $src $dsttmp" command.
+    #
+    { test -z "$chowncmd" || $doit $chowncmd "$dsttmp"; } &&
+    { test -z "$chgrpcmd" || $doit $chgrpcmd "$dsttmp"; } &&
+    { test -z "$stripcmd" || $doit $stripcmd "$dsttmp"; } &&
+    { test -z "$chmodcmd" || $doit $chmodcmd $mode "$dsttmp"; } &&
+
+    # If -C, don't bother to copy if it wouldn't change the file.
+    if $copy_on_change &&
+       old=`LC_ALL=C ls -dlL "$dst"     2>/dev/null` &&
+       new=`LC_ALL=C ls -dlL "$dsttmp"  2>/dev/null` &&
+       set -f &&
+       set X $old && old=:$2:$4:$5:$6 &&
+       set X $new && new=:$2:$4:$5:$6 &&
+       set +f &&
+       test "$old" = "$new" &&
+       $cmpprog "$dst" "$dsttmp" >/dev/null 2>&1
+    then
+      rm -f "$dsttmp"
+    else
+      # If $backupsuffix is set, and the file being installed
+      # already exists, attempt a backup.  Don't worry if it fails,
+      # e.g., if mv doesn't support -f.
+      if test -n "$backupsuffix" && test -f "$dst"; then
+        $doit $mvcmd -f "$dst" "$dst$backupsuffix" 2>/dev/null
+      fi
+
+      # Rename the file to the real destination.
+      $doit $mvcmd -f "$dsttmp" "$dst" 2>/dev/null ||
+
+      # The rename failed, perhaps because mv can't rename something else
+      # to itself, or perhaps because mv is so ancient that it does not
+      # support -f.
+      {
+        # Now remove or move aside any old file at destination location.
+        # We try this two ways since rm can't unlink itself on some
+        # systems and the destination file might be busy for other
+        # reasons.  In this case, the final cleanup might fail but the new
+        # file should still install successfully.
+        {
+          test ! -f "$dst" ||
+          $doit $rmcmd "$dst" 2>/dev/null ||
+          { $doit $mvcmd -f "$dst" "$rmtmp" 2>/dev/null &&
+            { $doit $rmcmd "$rmtmp" 2>/dev/null; :; }
+          } ||
+          { echo "$0: cannot unlink or rename $dst" >&2
+            (exit 1); exit 1
+          }
+        } &&
+
+        # Now rename the file to the real destination.
+        $doit $mvcmd "$dsttmp" "$dst"
+      }
+    fi || exit 1
+
+    trap '' 0
+  fi
+done
 
-exit 0
+# Local variables:
+# eval: (add-hook 'before-save-hook 'time-stamp)
+# time-stamp-start: "scriptversion="
+# time-stamp-format: "%:y-%02m-%02d.%02H"
+# time-stamp-time-zone: "UTC0"
+# time-stamp-end: "; # UTC"
+# End:
--- a/tclconfig/tcl.m4
+++ b/tclconfig/tcl.m4
@@ -8,19 +8,14 @@
 #
 # See the file "license.terms" for information on usage and redistribution
 # of this file, and for a DISCLAIMER OF ALL WARRANTIES.
-#
-# RCS: @(#) $Id: tcl.m4,v 1.141 2010/04/13 23:19:21 nijtmans Exp $
-
-AC_PREREQ(2.57)
 
-dnl TEA extensions pass us the version of TEA they think they
-dnl are compatible with (must be set in TEA_INIT below)
-dnl TEA_VERSION="3.7"
+AC_PREREQ([2.69])
 
 # Possible values for key variables defined:
 #
 # TEA_WINDOWINGSYSTEM - win32 aqua x11 (mirrors 'tk windowingsystem')
 # TEA_PLATFORM        - windows unix
+# TEA_TK_EXTENSION    - True if this is a Tk extension
 #
 
 #------------------------------------------------------------------------
@@ -55,9 +50,13 @@
 	# we reset no_tcl in case something fails here
 	no_tcl=true
 	AC_ARG_WITH(tcl,
-	    AC_HELP_STRING([--with-tcl],
+	    AS_HELP_STRING([--with-tcl],
 		[directory containing tcl configuration (tclConfig.sh)]),
-	    with_tclconfig="${withval}")
+	    [with_tclconfig="${withval}"])
+	AC_ARG_WITH(tcl8,
+	    AS_HELP_STRING([--with-tcl8],
+		[Compile for Tcl8 in Tcl9 environment]),
+	    [with_tcl8="${withval}"])
 	AC_MSG_CHECKING([for Tcl configuration])
 	AC_CACHE_VAL(ac_cv_c_tclconfig,[
 
@@ -109,7 +108,9 @@
 		for i in `ls -d ~/Library/Frameworks 2>/dev/null` \
 			`ls -d /Library/Frameworks 2>/dev/null` \
 			`ls -d /Network/Library/Frameworks 2>/dev/null` \
-			`ls -d /System/Library/Frameworks 2>/dev/null` \
+			`ls -d /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/Library/Frameworks/Tcl.framework 2>/dev/null` \
+			`ls -d /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/Network/Library/Frameworks/Tcl.framework 2>/dev/null` \
+			`ls -d /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX.sdk/System/Library/Frameworks/Tcl.framework 2>/dev/null` \
 			; do
 		    if test -f "$i/Tcl.framework/tclConfig.sh" ; then
 			ac_cv_c_tclconfig="`(cd $i/Tcl.framework; pwd)`"
@@ -138,7 +139,21 @@
 			`ls -d ${prefix}/lib 2>/dev/null` \
 			`ls -d /usr/local/lib 2>/dev/null` \
 			`ls -d /usr/contrib/lib 2>/dev/null` \
+			`ls -d /usr/pkg/lib 2>/dev/null` \
 			`ls -d /usr/lib 2>/dev/null` \
+			`ls -d /usr/lib64 2>/dev/null` \
+			`ls -d /usr/lib/tcl9.0 2>/dev/null` \
+			`ls -d /usr/lib/tcl8.7 2>/dev/null` \
+			`ls -d /usr/lib/tcl8.6 2>/dev/null` \
+			`ls -d /usr/lib/tcl8.5 2>/dev/null` \
+			`ls -d /usr/local/lib/tcl9.0 2>/dev/null` \
+			`ls -d /usr/local/lib/tcl8.7 2>/dev/null` \
+			`ls -d /usr/local/lib/tcl8.6 2>/dev/null` \
+			`ls -d /usr/local/lib/tcl8.5 2>/dev/null` \
+			`ls -d /usr/local/lib/tcl/tcl9.0 2>/dev/null` \
+			`ls -d /usr/local/lib/tcl/tcl8.7 2>/dev/null` \
+			`ls -d /usr/local/lib/tcl/tcl8.6 2>/dev/null` \
+			`ls -d /usr/local/lib/tcl/tcl8.5 2>/dev/null` \
 			; do
 		    if test -f "$i/tclConfig.sh" ; then
 			ac_cv_c_tclconfig="`(cd $i; pwd)`"
@@ -160,16 +175,16 @@
 			break
 		    fi
 		    if test -f "$i/unix/tclConfig.sh" ; then
-		    ac_cv_c_tclconfig="`(cd $i/unix; pwd)`"
-		    break
-		fi
+			ac_cv_c_tclconfig="`(cd $i/unix; pwd)`"
+			break
+		    fi
 		done
 	    fi
 	])
 
 	if test x"${ac_cv_c_tclconfig}" = x ; then
 	    TCL_BIN_DIR="# no Tcl configs found"
-	    AC_MSG_ERROR([Can't find Tcl configuration definitions])
+	    AC_MSG_ERROR([Can't find Tcl configuration definitions. Use --with-tcl to specify a directory containing tclConfig.sh])
 	else
 	    no_tcl=
 	    TCL_BIN_DIR="${ac_cv_c_tclconfig}"
@@ -207,9 +222,9 @@
 	# we reset no_tk in case something fails here
 	no_tk=true
 	AC_ARG_WITH(tk,
-	    AC_HELP_STRING([--with-tk],
+	    AS_HELP_STRING([--with-tk],
 		[directory containing tk configuration (tkConfig.sh)]),
-	    with_tkconfig="${withval}")
+	    [with_tkconfig="${withval}"])
 	AC_MSG_CHECKING([for Tk configuration])
 	AC_CACHE_VAL(ac_cv_c_tkconfig,[
 
@@ -261,7 +276,6 @@
 		for i in `ls -d ~/Library/Frameworks 2>/dev/null` \
 			`ls -d /Library/Frameworks 2>/dev/null` \
 			`ls -d /Network/Library/Frameworks 2>/dev/null` \
-			`ls -d /System/Library/Frameworks 2>/dev/null` \
 			; do
 		    if test -f "$i/Tk.framework/tkConfig.sh" ; then
 			ac_cv_c_tkconfig="`(cd $i/Tk.framework; pwd)`"
@@ -277,7 +291,21 @@
 			`ls -d ${prefix}/lib 2>/dev/null` \
 			`ls -d /usr/local/lib 2>/dev/null` \
 			`ls -d /usr/contrib/lib 2>/dev/null` \
+			`ls -d /usr/pkg/lib 2>/dev/null` \
+			`ls -d /usr/lib/tk9.0 2>/dev/null` \
+			`ls -d /usr/lib/tk8.7 2>/dev/null` \
+			`ls -d /usr/lib/tk8.6 2>/dev/null` \
+			`ls -d /usr/lib/tk8.5 2>/dev/null` \
 			`ls -d /usr/lib 2>/dev/null` \
+			`ls -d /usr/lib64 2>/dev/null` \
+			`ls -d /usr/local/lib/tk9.0 2>/dev/null` \
+			`ls -d /usr/local/lib/tk8.7 2>/dev/null` \
+			`ls -d /usr/local/lib/tk8.6 2>/dev/null` \
+			`ls -d /usr/local/lib/tk8.5 2>/dev/null` \
+			`ls -d /usr/local/lib/tcl/tk9.0 2>/dev/null` \
+			`ls -d /usr/local/lib/tcl/tk8.7 2>/dev/null` \
+			`ls -d /usr/local/lib/tcl/tk8.6 2>/dev/null` \
+			`ls -d /usr/local/lib/tcl/tk8.5 2>/dev/null` \
 			; do
 		    if test -f "$i/tkConfig.sh" ; then
 			ac_cv_c_tkconfig="`(cd $i; pwd)`"
@@ -321,7 +349,7 @@
 
 	if test x"${ac_cv_c_tkconfig}" = x ; then
 	    TK_BIN_DIR="# no Tk configs found"
-	    AC_MSG_ERROR([Can't find Tk configuration definitions])
+	    AC_MSG_ERROR([Can't find Tk configuration definitions. Use --with-tk to specify a directory containing tkConfig.sh])
 	else
 	    no_tk=
 	    TK_BIN_DIR="${ac_cv_c_tkconfig}"
@@ -342,11 +370,12 @@
 #
 # Results:
 #
-#	Subst the following vars:
+#	Substitutes the following vars:
 #		TCL_BIN_DIR
 #		TCL_SRC_DIR
 #		TCL_LIB_FILE
-#
+#		TCL_ZIP_FILE
+#		TCL_ZIPFS_SUPPORT
 #------------------------------------------------------------------------
 
 AC_DEFUN([TEA_LOAD_TCLCONFIG], [
@@ -359,10 +388,6 @@
         AC_MSG_RESULT([could not find ${TCL_BIN_DIR}/tclConfig.sh])
     fi
 
-    # eval is required to do the TCL_DBGX substitution
-    eval "TCL_LIB_FILE=\"${TCL_LIB_FILE}\""
-    eval "TCL_STUB_LIB_FILE=\"${TCL_STUB_LIB_FILE}\""
-
     # If the TCL_BIN_DIR is the build directory (not the install directory),
     # then set the common variable name to the value of the build variables.
     # For example, the variable TCL_LIB_SPEC will be set to the value
@@ -396,12 +421,6 @@
 	esac
     fi
 
-    # eval is required to do the TCL_DBGX substitution
-    eval "TCL_LIB_FLAG=\"${TCL_LIB_FLAG}\""
-    eval "TCL_LIB_SPEC=\"${TCL_LIB_SPEC}\""
-    eval "TCL_STUB_LIB_FLAG=\"${TCL_STUB_LIB_FLAG}\""
-    eval "TCL_STUB_LIB_SPEC=\"${TCL_STUB_LIB_SPEC}\""
-
     AC_SUBST(TCL_VERSION)
     AC_SUBST(TCL_PATCH_LEVEL)
     AC_SUBST(TCL_BIN_DIR)
@@ -415,27 +434,35 @@
     AC_SUBST(TCL_STUB_LIB_FLAG)
     AC_SUBST(TCL_STUB_LIB_SPEC)
 
-    case "`uname -s`" in
-	*CYGWIN_*)
-	    AC_MSG_CHECKING([for cygwin variant])
-	    case ${TCL_EXTRA_CFLAGS} in
-		*-mwin32*|*-mno-cygwin*)
-		    TEA_PLATFORM="windows"
-		    CFLAGS="$CFLAGS -mwin32"
-		    AC_MSG_RESULT([win32])
-		    ;;
-		*)
-		    TEA_PLATFORM="unix"
-		    AC_MSG_RESULT([unix])
-		    ;;
-	    esac
-	    EXEEXT=".exe"
-	    ;;
-	*)
-	    ;;
-    esac
+    AC_MSG_CHECKING([platform])
+    hold_cc=$CC; CC="$TCL_CC"
+    AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[
+	    #ifdef _WIN32
+		#error win32
+	    #endif
+	]])],[
+	    # first test we've already retrieved platform (cross-compile), fallback to unix otherwise:
+	    TEA_PLATFORM="${TEA_PLATFORM-unix}"
+	    CYGPATH=echo
+	],[
+	    TEA_PLATFORM="windows"
+	    AC_CHECK_PROG(CYGPATH, cygpath, cygpath -m, echo)
+    ])
+    CC=$hold_cc
+    AC_MSG_RESULT($TEA_PLATFORM)
+
+    # The BUILD_$pkg is to define the correct extern storage class
+    # handling when making this package
+    AC_DEFINE_UNQUOTED(BUILD_${PACKAGE_NAME}, [],
+	    [Building extension source?])
+    # Do this here as we have fully defined TEA_PLATFORM now
+    if test "${TEA_PLATFORM}" = "windows" ; then
+	EXEEXT=".exe"
+	CLEANFILES="$CLEANFILES *.lib *.dll *.pdb *.exp"
+    fi
 
     # TEA specific:
+    AC_SUBST(CLEANFILES)
     AC_SUBST(TCL_LIBS)
     AC_SUBST(TCL_DEFS)
     AC_SUBST(TCL_EXTRA_CFLAGS)
@@ -469,10 +496,6 @@
         AC_MSG_RESULT([could not find ${TK_BIN_DIR}/tkConfig.sh])
     fi
 
-    # eval is required to do the TK_DBGX substitution
-    eval "TK_LIB_FILE=\"${TK_LIB_FILE}\""
-    eval "TK_STUB_LIB_FILE=\"${TK_STUB_LIB_FILE}\""
-
     # If the TK_BIN_DIR is the build directory (not the install directory),
     # then set the common variable name to the value of the build variables.
     # For example, the variable TK_LIB_SPEC will be set to the value
@@ -506,12 +529,6 @@
 	esac
     fi
 
-    # eval is required to do the TK_DBGX substitution
-    eval "TK_LIB_FLAG=\"${TK_LIB_FLAG}\""
-    eval "TK_LIB_SPEC=\"${TK_LIB_SPEC}\""
-    eval "TK_STUB_LIB_FLAG=\"${TK_STUB_LIB_FLAG}\""
-    eval "TK_STUB_LIB_SPEC=\"${TK_STUB_LIB_SPEC}\""
-
     # TEA specific: Ensure windowingsystem is defined
     if test "${TEA_PLATFORM}" = "unix" ; then
 	case ${TK_DEFS} in
@@ -555,11 +572,11 @@
 #	only for running extension test cases. It should never be
 #	or generation of files (like pkgIndex.tcl) at build time.
 #
-# Arguments
+# Arguments:
 #	none
 #
-# Results
-#	Subst's the following values:
+# Results:
+#	Substitutes the following vars:
 #		TCLSH_PROG
 #------------------------------------------------------------------------
 
@@ -568,16 +585,24 @@
     if test -f "${TCL_BIN_DIR}/Makefile" ; then
         # tclConfig.sh is in Tcl build directory
         if test "${TEA_PLATFORM}" = "windows"; then
-            TCLSH_PROG="${TCL_BIN_DIR}/tclsh${TCL_MAJOR_VERSION}${TCL_MINOR_VERSION}${TCL_DBGX}${EXEEXT}"
+          if test -f "${TCL_BIN_DIR}/tclsh${TCL_MAJOR_VERSION}${TCL_MINOR_VERSION}${EXEEXT}" ; then
+            TCLSH_PROG="${TCL_BIN_DIR}/tclsh${TCL_MAJOR_VERSION}${TCL_MINOR_VERSION}${EXEEXT}"
+          elif test -f "${TCL_BIN_DIR}/tclsh${TCL_MAJOR_VERSION}${TCL_MINOR_VERSION}s${EXEEXT}" ; then
+            TCLSH_PROG="${TCL_BIN_DIR}/tclsh${TCL_MAJOR_VERSION}${TCL_MINOR_VERSION}s${EXEEXT}"
+          elif test -f "${TCL_BIN_DIR}/tclsh${TCL_MAJOR_VERSION}${TCL_MINOR_VERSION}t${EXEEXT}" ; then
+            TCLSH_PROG="${TCL_BIN_DIR}/tclsh${TCL_MAJOR_VERSION}${TCL_MINOR_VERSION}t${EXEEXT}"
+          elif test -f "${TCL_BIN_DIR}/tclsh${TCL_MAJOR_VERSION}${TCL_MINOR_VERSION}st${EXEEXT}" ; then
+            TCLSH_PROG="${TCL_BIN_DIR}/tclsh${TCL_MAJOR_VERSION}${TCL_MINOR_VERSION}st${EXEEXT}"
+          fi
         else
             TCLSH_PROG="${TCL_BIN_DIR}/tclsh"
         fi
     else
         # tclConfig.sh is in install location
         if test "${TEA_PLATFORM}" = "windows"; then
-            TCLSH_PROG="tclsh${TCL_MAJOR_VERSION}${TCL_MINOR_VERSION}${TCL_DBGX}${EXEEXT}"
+            TCLSH_PROG="tclsh${TCL_MAJOR_VERSION}${TCL_MINOR_VERSION}${EXEEXT}"
         else
-            TCLSH_PROG="tclsh${TCL_MAJOR_VERSION}.${TCL_MINOR_VERSION}${TCL_DBGX}"
+            TCLSH_PROG="tclsh${TCL_MAJOR_VERSION}.${TCL_MINOR_VERSION}"
         fi
         list="`ls -d ${TCL_BIN_DIR}/../bin 2>/dev/null` \
               `ls -d ${TCL_BIN_DIR}/..     2>/dev/null` \
@@ -605,11 +630,11 @@
 #	only for running extension test cases. It should never be
 #	or generation of files (like pkgIndex.tcl) at build time.
 #
-# Arguments
+# Arguments:
 #	none
 #
-# Results
-#	Subst's the following values:
+# Results:
+#	Substitutes the following vars:
 #		WISH_PROG
 #------------------------------------------------------------------------
 
@@ -618,16 +643,24 @@
     if test -f "${TK_BIN_DIR}/Makefile" ; then
         # tkConfig.sh is in Tk build directory
         if test "${TEA_PLATFORM}" = "windows"; then
-            WISH_PROG="${TK_BIN_DIR}/wish${TK_MAJOR_VERSION}${TK_MINOR_VERSION}${TK_DBGX}${EXEEXT}"
+          if test -f "${TK_BIN_DIR}/wish${TK_MAJOR_VERSION}${TK_MINOR_VERSION}${EXEEXT}" ; then
+            WISH_PROG="${TK_BIN_DIR}/wish${TK_MAJOR_VERSION}${TK_MINOR_VERSION}${EXEEXT}"
+          elif test -f "${TK_BIN_DIR}/wish${TK_MAJOR_VERSION}${TK_MINOR_VERSION}s${EXEEXT}" ; then
+            WISH_PROG="${TK_BIN_DIR}/wish${TK_MAJOR_VERSION}${TK_MINOR_VERSION}$s{EXEEXT}"
+          elif test -f "${TK_BIN_DIR}/wish${TK_MAJOR_VERSION}${TK_MINOR_VERSION}t${EXEEXT}" ; then
+            WISH_PROG="${TK_BIN_DIR}/wish${TK_MAJOR_VERSION}${TK_MINOR_VERSION}t${EXEEXT}"
+          elif test -f "${TK_BIN_DIR}/wish${TK_MAJOR_VERSION}${TK_MINOR_VERSION}st${EXEEXT}" ; then
+            WISH_PROG="${TK_BIN_DIR}/wish${TK_MAJOR_VERSION}${TK_MINOR_VERSION}st${EXEEXT}"
+          fi
         else
             WISH_PROG="${TK_BIN_DIR}/wish"
         fi
     else
         # tkConfig.sh is in install location
         if test "${TEA_PLATFORM}" = "windows"; then
-            WISH_PROG="wish${TK_MAJOR_VERSION}${TK_MINOR_VERSION}${TK_DBGX}${EXEEXT}"
+            WISH_PROG="wish${TK_MAJOR_VERSION}${TK_MINOR_VERSION}${EXEEXT}"
         else
-            WISH_PROG="wish${TK_MAJOR_VERSION}.${TK_MINOR_VERSION}${TK_DBGX}"
+            WISH_PROG="wish${TK_MAJOR_VERSION}.${TK_MINOR_VERSION}"
         fi
         list="`ls -d ${TK_BIN_DIR}/../bin 2>/dev/null` \
               `ls -d ${TK_BIN_DIR}/..     2>/dev/null` \
@@ -656,6 +689,7 @@
 #
 #	Adds the following arguments to configure:
 #		--enable-shared=yes|no
+#		--enable-stubs=yes|no
 #
 #	Defines the following vars:
 #		STATIC_BUILD	Used for building import/export libraries
@@ -663,31 +697,63 @@
 #
 #	Sets the following vars:
 #		SHARED_BUILD	Value of 1 or 0
+#               STUBS_BUILD     Value if 1 or 0
+#               USE_TCL_STUBS   Value true: if SHARED_BUILD or --enable-stubs
+#               USE_TCLOO_STUBS Value true: if SHARED_BUILD or --enable-stubs
+#               USE_TK_STUBS    Value true: if SHARED_BUILD or --enable-stubs
+#                                AND TEA_WINDOWING_SYSTEM != ""
 #------------------------------------------------------------------------
-
 AC_DEFUN([TEA_ENABLE_SHARED], [
     AC_MSG_CHECKING([how to build libraries])
     AC_ARG_ENABLE(shared,
-	AC_HELP_STRING([--enable-shared],
+	AS_HELP_STRING([--enable-shared],
 	    [build and link with shared libraries (default: on)]),
-	[tcl_ok=$enableval], [tcl_ok=yes])
+	[shared_ok=$enableval], [shared_ok=yes])
 
     if test "${enable_shared+set}" = set; then
 	enableval="$enable_shared"
-	tcl_ok=$enableval
+	shared_ok=$enableval
     else
-	tcl_ok=yes
+	shared_ok=yes
+    fi
+
+    AC_ARG_ENABLE(stubs,
+	AS_HELP_STRING([--enable-stubs],
+	    [build and link with stub libraries. Always true for shared builds (default: on)]),
+	[stubs_ok=$enableval], [stubs_ok=yes])
+
+    if test "${enable_stubs+set}" = set; then
+	enableval="$enable_stubs"
+	stubs_ok=$enableval
+    else
+	stubs_ok=yes
     fi
 
-    if test "$tcl_ok" = "yes" ; then
+    # Stubs are always enabled for shared builds
+    if test "$shared_ok" = "yes" ; then
 	AC_MSG_RESULT([shared])
 	SHARED_BUILD=1
+        STUBS_BUILD=1
     else
 	AC_MSG_RESULT([static])
 	SHARED_BUILD=0
-	AC_DEFINE(STATIC_BUILD, 1, [Is this a static build?])
+	AC_DEFINE(STATIC_BUILD, 1, [This a static build])
+        if test "$stubs_ok" = "yes" ; then
+          STUBS_BUILD=1
+        else
+          STUBS_BUILD=0
+        fi
+    fi
+    if test "${STUBS_BUILD}" = "1" ; then
+      AC_DEFINE(USE_TCL_STUBS, 1, [Use Tcl stubs])
+      AC_DEFINE(USE_TCLOO_STUBS, 1, [Use TclOO stubs])
+      if test "${TEA_WINDOWINGSYSTEM}" != ""; then
+        AC_DEFINE(USE_TK_STUBS, 1, [Use Tk stubs])
+      fi
     fi
+
     AC_SUBST(SHARED_BUILD)
+    AC_SUBST(STUBS_BUILD)
 ])
 
 #------------------------------------------------------------------------
@@ -720,13 +786,12 @@
 #		TCL_THREADS
 #		_REENTRANT
 #		_THREAD_SAFE
-#
 #------------------------------------------------------------------------
 
 AC_DEFUN([TEA_ENABLE_THREADS], [
     AC_ARG_ENABLE(threads,
-	AC_HELP_STRING([--enable-threads],
-	    [build with threads]),
+	AS_HELP_STRING([--enable-threads],
+	    [build with threads (default: on)]),
 	[tcl_ok=$enableval], [tcl_ok=yes])
 
     if test "${enable_threads+set}" = set; then
@@ -810,14 +875,6 @@
     that IS thread-enabled.  It is recommended to use --enable-threads.])
 	    fi
 	    ;;
-	*)
-	    if test "${TCL_THREADS}" = "1"; then
-		AC_MSG_WARN([
-    --enable-threads requested, but building against a Tcl that is NOT
-    thread-enabled.  This is an OK configuration that will also run in
-    a thread-enabled core.])
-	    fi
-	    ;;
     esac
     AC_SUBST(TCL_THREADS)
 ])
@@ -844,12 +901,9 @@
 #
 #	Defines the following vars:
 #		CFLAGS_DEFAULT	Sets to $(CFLAGS_DEBUG) if true
-#				Sets to $(CFLAGS_OPTIMIZE) if false
+#				Sets to "$(CFLAGS_OPTIMIZE) -DNDEBUG" if false
 #		LDFLAGS_DEFAULT	Sets to $(LDFLAGS_DEBUG) if true
 #				Sets to $(LDFLAGS_OPTIMIZE) if false
-#		DBGX		Formerly used as debug library extension;
-#				always blank now.
-#
 #------------------------------------------------------------------------
 
 AC_DEFUN([TEA_ENABLE_SYMBOLS], [
@@ -857,14 +911,14 @@
     AC_REQUIRE([TEA_CONFIG_CFLAGS])
     AC_MSG_CHECKING([for build with symbols])
     AC_ARG_ENABLE(symbols,
-	AC_HELP_STRING([--enable-symbols],
+	AS_HELP_STRING([--enable-symbols],
 	    [build with debugging symbols (default: off)]),
 	[tcl_ok=$enableval], [tcl_ok=no])
-    DBGX=""
     if test "$tcl_ok" = "no"; then
-	CFLAGS_DEFAULT="${CFLAGS_OPTIMIZE}"
+	CFLAGS_DEFAULT="${CFLAGS_OPTIMIZE} -DNDEBUG"
 	LDFLAGS_DEFAULT="${LDFLAGS_OPTIMIZE}"
 	AC_MSG_RESULT([no])
+	AC_DEFINE(TCL_CFG_OPTIMIZED, 1, [Is this an optimized build?])
     else
 	CFLAGS_DEFAULT="${CFLAGS_DEBUG}"
 	LDFLAGS_DEFAULT="${LDFLAGS_DEBUG}"
@@ -872,13 +926,8 @@
 	    AC_MSG_RESULT([yes (standard debugging)])
 	fi
     fi
-    # TEA specific:
-    if test "${TEA_PLATFORM}" != "windows" ; then
-	LDFLAGS_DEFAULT="${LDFLAGS}"
-    fi
     AC_SUBST(CFLAGS_DEFAULT)
     AC_SUBST(LDFLAGS_DEFAULT)
-    AC_SUBST(TCL_DBGX)
 
     if test "$tcl_ok" = "mem" -o "$tcl_ok" = "all"; then
 	AC_DEFINE(TCL_MEM_DEBUG, 1, [Is memory debugging enabled?])
@@ -909,12 +958,11 @@
 #
 #	Defines the following vars:
 #		HAVE_LANGINFO	Triggers use of nl_langinfo if defined.
-#
 #------------------------------------------------------------------------
 
 AC_DEFUN([TEA_ENABLE_LANGINFO], [
     AC_ARG_ENABLE(langinfo,
-	AC_HELP_STRING([--enable-langinfo],
+	AS_HELP_STRING([--enable-langinfo],
 	    [use nl_langinfo if possible to determine encoding at startup, otherwise use old heuristic (default: on)]),
 	[langinfo_ok=$enableval], [langinfo_ok=yes])
 
@@ -925,7 +973,7 @@
     AC_MSG_CHECKING([whether to use nl_langinfo])
     if test "$langinfo_ok" = "yes"; then
 	AC_CACHE_VAL(tcl_cv_langinfo_h, [
-	    AC_TRY_COMPILE([#include <langinfo.h>], [nl_langinfo(CODESET);],
+	    AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]], [[nl_langinfo(CODESET);]])],
 		    [tcl_cv_langinfo_h=yes],[tcl_cv_langinfo_h=no])])
 	AC_MSG_RESULT([$tcl_cv_langinfo_h])
 	if test $tcl_cv_langinfo_h = yes; then
@@ -941,8 +989,7 @@
 #
 #	Determine what the system is (some things cannot be easily checked
 #	on a feature-driven basis, alas). This can usually be done via the
-#	"uname" command, but there are a few systems, like Next, where
-#	this doesn't work.
+#	"uname" command.
 #
 # Arguments:
 #	none
@@ -959,23 +1006,18 @@
 	# TEA specific:
 	if test "${TEA_PLATFORM}" = "windows" ; then
 	    tcl_cv_sys_version=windows
-	elif test -f /usr/lib/NextStep/software_version; then
-	    tcl_cv_sys_version=NEXTSTEP-`awk '/3/,/3/' /usr/lib/NextStep/software_version`
 	else
 	    tcl_cv_sys_version=`uname -s`-`uname -r`
 	    if test "$?" -ne 0 ; then
 		AC_MSG_WARN([can't find uname command])
 		tcl_cv_sys_version=unknown
 	    else
-		# Special check for weird MP-RAS system (uname returns weird
-		# results, and the version is kept in special file).
-
-		if test -r /etc/.relid -a "X`uname -n`" = "X`uname -s`" ; then
-		    tcl_cv_sys_version=MP-RAS-`awk '{print $[3]}' /etc/.relid`
-		fi
 		if test "`uname -s`" = "AIX" ; then
 		    tcl_cv_sys_version=AIX-`uname -v`.`uname -r`
 		fi
+		if test "`uname -s`" = "NetBSD" -a -f /etc/debian_version ; then
+		    tcl_cv_sys_version=NetBSD-Debian
+		fi
 	    fi
 	fi
     ])
@@ -995,10 +1037,7 @@
 #
 #	Defines and substitutes the following vars:
 #
-#       DL_OBJS -       Name of the object file that implements dynamic
-#                       loading for Tcl on this system.
-#       DL_LIBS -       Library file(s) to include in tclsh and other base
-#                       applications in order for the "load" command to work.
+#	DL_OBJS, DL_LIBS - removed for TEA, only needed by core.
 #       LDFLAGS -      Flags to pass to the compiler when linking object
 #                       files into an executable application binary such
 #                       as tclsh.
@@ -1019,7 +1058,7 @@
 #       SHLIB_LD_LIBS - Dependent libraries for the linker to scan when
 #                       creating shared libraries.  This symbol typically
 #                       goes at the end of the "ld" commands that build
-#                       shared libraries. The value of the symbol is
+#                       shared libraries. The value of the symbol defaults to
 #                       "${LIBS}" if all of the dependent libraries should
 #                       be specified when creating a shared library.  If
 #                       dependent libraries should not be specified (as on
@@ -1031,31 +1070,20 @@
 #                       extensions.  An empty string means we don't know how
 #                       to use shared libraries on this platform.
 #       LIB_SUFFIX -    Specifies everything that comes after the "libfoo"
-#                       in a static or shared library name, using the $VERSION variable
+#                       in a static or shared library name, using the $PACKAGE_VERSION variable
 #                       to put the version in the right place.  This is used
 #                       by platforms that need non-standard library names.
-#                       Examples:  ${VERSION}.so.1.1 on NetBSD, since it needs
-#                       to have a version after the .so, and ${VERSION}.a
+#                       Examples:  ${PACKAGE_VERSION}.so.1.1 on NetBSD, since it needs
+#                       to have a version after the .so, and ${PACKAGE_VERSION}.a
 #                       on AIX, since a shared library needs to have
 #                       a .a extension whereas shared objects for loadable
 #                       extensions have a .so extension.  Defaults to
-#                       ${VERSION}${SHLIB_SUFFIX}.
-#       TCL_NEEDS_EXP_FILE -
-#                       1 means that an export file is needed to link to a
-#                       shared library.
-#       TCL_EXP_FILE -  The name of the installed export / import file which
-#                       should be used to link to the Tcl shared library.
-#                       Empty if Tcl is unshared.
-#       TCL_BUILD_EXP_FILE -
-#                       The name of the built export / import file which
-#                       should be used to link to the Tcl shared library.
-#                       Empty if Tcl is unshared.
+#                       ${PACKAGE_VERSION}${SHLIB_SUFFIX}.
 #	CFLAGS_DEBUG -
 #			Flags used when running the compiler in debug mode
 #	CFLAGS_OPTIMIZE -
 #			Flags used when running the compiler in optimize mode
 #	CFLAGS -	Additional CFLAGS added as necessary (usually 64-bit)
-#
 #--------------------------------------------------------------------
 
 AC_DEFUN([TEA_CONFIG_CFLAGS], [
@@ -1066,7 +1094,7 @@
 
     AC_MSG_CHECKING([if 64bit support is requested])
     AC_ARG_ENABLE(64bit,
-	AC_HELP_STRING([--enable-64bit],
+	AS_HELP_STRING([--enable-64bit],
 	    [enable 64bit support (default: off)]),
 	[do64bit=$enableval], [do64bit=no])
     AC_MSG_RESULT([$do64bit])
@@ -1075,7 +1103,7 @@
 
     AC_MSG_CHECKING([if 64bit Sparc VIS support is requested])
     AC_ARG_ENABLE(64bit-vis,
-	AC_HELP_STRING([--enable-64bit-vis],
+	AS_HELP_STRING([--enable-64bit-vis],
 	    [enable 64bit Sparc VIS support (default: off)]),
 	[do64bitVIS=$enableval], [do64bitVIS=no])
     AC_MSG_RESULT([$do64bitVIS])
@@ -1088,175 +1116,80 @@
     AC_CACHE_CHECK([if compiler supports visibility "hidden"],
 	tcl_cv_cc_visibility_hidden, [
 	hold_cflags=$CFLAGS; CFLAGS="$CFLAGS -Werror"
-	AC_TRY_LINK([
+	AC_LINK_IFELSE([AC_LANG_PROGRAM([[
 	    extern __attribute__((__visibility__("hidden"))) void f(void);
-	    void f(void) {}], [f();], tcl_cv_cc_visibility_hidden=yes,
-	    tcl_cv_cc_visibility_hidden=no)
+	    void f(void) {}]], [[f();]])],[tcl_cv_cc_visibility_hidden=yes],
+	    [tcl_cv_cc_visibility_hidden=no])
 	CFLAGS=$hold_cflags])
     AS_IF([test $tcl_cv_cc_visibility_hidden = yes], [
 	AC_DEFINE(MODULE_SCOPE,
 	    [extern __attribute__((__visibility__("hidden")))],
 	    [Compiler support for module scope symbols])
+	AC_DEFINE(HAVE_HIDDEN, [1], [Compiler support for module scope symbols])
     ])
 
     # Step 0.d: Disable -rpath support?
 
     AC_MSG_CHECKING([if rpath support is requested])
     AC_ARG_ENABLE(rpath,
-	AC_HELP_STRING([--disable-rpath],
+	AS_HELP_STRING([--disable-rpath],
 	    [disable rpath support (default: on)]),
 	[doRpath=$enableval], [doRpath=yes])
     AC_MSG_RESULT([$doRpath])
 
-    # TEA specific: Cross-compiling options for Windows/CE builds?
-
-    AS_IF([test "${TEA_PLATFORM}" = windows], [
-	AC_MSG_CHECKING([if Windows/CE build is requested])
-	AC_ARG_ENABLE(wince,
-	    AC_HELP_STRING([--enable-wince],
-		[enable Win/CE support (where applicable)]),
-	    [doWince=$enableval], [doWince=no])
-	AC_MSG_RESULT([$doWince])
-    ])
-
-    # Step 1: set the variable "system" to hold the name and version number
+    # Set the variable "system" to hold the name and version number
     # for the system.
 
     TEA_CONFIG_SYSTEM
 
-    # Step 2: check for existence of -ldl library.  This is needed because
-    # Linux can use either -ldl or -ldld for dynamic loading.
-
-    AC_CHECK_LIB(dl, dlopen, have_dl=yes, have_dl=no)
-
     # Require ranlib early so we can override it in special cases below.
 
     AC_REQUIRE([AC_PROG_RANLIB])
 
-    # Step 3: set configuration options based on system name and version.
+    # Set configuration options based on system name and version.
     # This is similar to Tcl's unix/tcl.m4 except that we've added a
-    # "windows" case.
+    # "windows" case and removed some core-only vars.
 
     do64bit_ok=no
-    LDFLAGS_ORIG="$LDFLAGS"
+    # default to '{$LIBS}' and set to "" on per-platform necessary basis
+    SHLIB_LD_LIBS='${LIBS}'
     # When ld needs options to work in 64-bit mode, put them in
     # LDFLAGS_ARCH so they eventually end up in LDFLAGS even if [load]
     # is disabled by the user. [Bug 1016796]
     LDFLAGS_ARCH=""
-    TCL_EXPORT_FILE_SUFFIX=""
     UNSHARED_LIB_SUFFIX=""
     # TEA specific: use PACKAGE_VERSION instead of VERSION
     TCL_TRIM_DOTS='`echo ${PACKAGE_VERSION} | tr -d .`'
     ECHO_VERSION='`echo ${PACKAGE_VERSION}`'
     TCL_LIB_VERSIONS_OK=ok
     CFLAGS_DEBUG=-g
-    CFLAGS_OPTIMIZE=-O
     AS_IF([test "$GCC" = yes], [
-	# TEA specific:
 	CFLAGS_OPTIMIZE=-O2
-	CFLAGS_WARNING="-W -Wall -Wno-unused-parameter -Wno-missing-field-initializers -ansi -pedantic"
-    ], [CFLAGS_WARNING=""])
-    TCL_NEEDS_EXP_FILE=0
-    TCL_BUILD_EXP_FILE=""
-    TCL_EXP_FILE=""
-dnl FIXME: Replace AC_CHECK_PROG with AC_CHECK_TOOL once cross compiling is fixed.
-dnl AC_CHECK_TOOL(AR, ar)
-    AC_CHECK_PROG(AR, ar, ar)
+	CFLAGS_WARNING="-Wall"
+    ], [
+	CFLAGS_OPTIMIZE=-O
+	CFLAGS_WARNING=""
+    ])
+    AC_CHECK_TOOL(AR, ar)
     STLIB_LD='${AR} cr'
     LD_LIBRARY_PATH_VAR="LD_LIBRARY_PATH"
-    AS_IF([test "x$SHLIB_VERSION" = x],[SHLIB_VERSION="1.0"])
+    AS_IF([test "x$SHLIB_VERSION" = x],[SHLIB_VERSION=""],[SHLIB_VERSION=".$SHLIB_VERSION"])
     case $system in
 	# TEA specific:
 	windows)
-	    # This is a 2-stage check to make sure we have the 64-bit SDK
-	    # We have to know where the SDK is installed.
-	    # This magic is based on MS Platform SDK for Win2003 SP1 - hobbs
-	    # MACHINE is IX86 for LINK, but this is used by the manifest,
-	    # which requires x86|amd64|ia64.
 	    MACHINE="X86"
 	    if test "$do64bit" != "no" ; then
-		if test "x${MSSDK}x" = "xx" ; then
-		    MSSDK="C:/Progra~1/Microsoft Platform SDK"
-		fi
-		MSSDK=`echo "$MSSDK" | sed -e  's!\\\!/!g'`
-		PATH64=""
 		case "$do64bit" in
 		    amd64|x64|yes)
 			MACHINE="AMD64" ; # default to AMD64 64-bit build
-			PATH64="${MSSDK}/Bin/Win64/x86/AMD64"
+			;;
+		    arm64|aarch64)
+			MACHINE="ARM64"
 			;;
 		    ia64)
 			MACHINE="IA64"
-			PATH64="${MSSDK}/Bin/Win64"
 			;;
 		esac
-		if test ! -d "${PATH64}" ; then
-		    AC_MSG_WARN([Could not find 64-bit $MACHINE SDK to enable 64bit mode])
-		    AC_MSG_WARN([Ensure latest Platform SDK is installed])
-		    do64bit="no"
-		else
-		    AC_MSG_RESULT([   Using 64-bit $MACHINE mode])
-		    do64bit_ok="yes"
-		fi
-	    fi
-
-	    if test "$doWince" != "no" ; then
-		if test "$do64bit" != "no" ; then
-		    AC_MSG_ERROR([Windows/CE and 64-bit builds incompatible])
-		fi
-		if test "$GCC" = "yes" ; then
-		    AC_MSG_ERROR([Windows/CE and GCC builds incompatible])
-		fi
-		TEA_PATH_CELIB
-		# Set defaults for common evc4/PPC2003 setup
-		# Currently Tcl requires 300+, possibly 420+ for sockets
-		CEVERSION=420; 		# could be 211 300 301 400 420 ...
-		TARGETCPU=ARMV4;	# could be ARMV4 ARM MIPS SH3 X86 ...
-		ARCH=ARM;		# could be ARM MIPS X86EM ...
-		PLATFORM="Pocket PC 2003"; # or "Pocket PC 2002"
-		if test "$doWince" != "yes"; then
-		    # If !yes then the user specified something
-		    # Reset ARCH to allow user to skip specifying it
-		    ARCH=
-		    eval `echo $doWince | awk -F, '{ \
-	    if (length([$]1)) { printf "CEVERSION=\"%s\"\n", [$]1; \
-	    if ([$]1 < 400)   { printf "PLATFORM=\"Pocket PC 2002\"\n" } }; \
-	    if (length([$]2)) { printf "TARGETCPU=\"%s\"\n", toupper([$]2) }; \
-	    if (length([$]3)) { printf "ARCH=\"%s\"\n", toupper([$]3) }; \
-	    if (length([$]4)) { printf "PLATFORM=\"%s\"\n", [$]4 }; \
-		    }'`
-		    if test "x${ARCH}" = "x" ; then
-			ARCH=$TARGETCPU;
-		    fi
-		fi
-		OSVERSION=WCE$CEVERSION;
-	    	if test "x${WCEROOT}" = "x" ; then
-			WCEROOT="C:/Program Files/Microsoft eMbedded C++ 4.0"
-		    if test ! -d "${WCEROOT}" ; then
-			WCEROOT="C:/Program Files/Microsoft eMbedded Tools"
-		    fi
-		fi
-		if test "x${SDKROOT}" = "x" ; then
-		    SDKROOT="C:/Program Files/Windows CE Tools"
-		    if test ! -d "${SDKROOT}" ; then
-			SDKROOT="C:/Windows CE Tools"
-		    fi
-		fi
-		WCEROOT=`echo "$WCEROOT" | sed -e 's!\\\!/!g'`
-		SDKROOT=`echo "$SDKROOT" | sed -e 's!\\\!/!g'`
-		if test ! -d "${SDKROOT}/${OSVERSION}/${PLATFORM}/Lib/${TARGETCPU}" \
-		    -o ! -d "${WCEROOT}/EVC/${OSVERSION}/bin"; then
-		    AC_MSG_ERROR([could not find PocketPC SDK or target compiler to enable WinCE mode [$CEVERSION,$TARGETCPU,$ARCH,$PLATFORM]])
-		    doWince="no"
-		else
-		    # We could PATH_NOSPACE these, but that's not important,
-		    # as long as we quote them when used.
-		    CEINCLUDE="${SDKROOT}/${OSVERSION}/${PLATFORM}/include"
-		    if test -d "${CEINCLUDE}/${TARGETCPU}" ; then
-			CEINCLUDE="${CEINCLUDE}/${TARGETCPU}"
-		    fi
-		    CELIBPATH="${SDKROOT}/${OSVERSION}/${PLATFORM}/Lib/${TARGETCPU}"
-    		fi
 	    fi
 
 	    if test "$GCC" != "yes" ; then
@@ -1265,49 +1198,29 @@
 	        else
 		    runtime=-MD
 	        fi
+	        case "x`echo \${VisualStudioVersion}`" in
+	            x1[[4-9]]*)
+		        lflags="${lflags} -nodefaultlib:libucrt.lib"
+		        TEA_ADD_LIBS([ucrt.lib])
+	            ;;
+	            *)
+	            ;;
+	        esac
 
                 if test "$do64bit" != "no" ; then
-		    # All this magic is necessary for the Win64 SDK RC1 - hobbs
-		    CC="\"${PATH64}/cl.exe\""
-		    CFLAGS="${CFLAGS} -I\"${MSSDK}/Include\" -I\"${MSSDK}/Include/crt\" -I\"${MSSDK}/Include/crt/sys\""
-		    RC="\"${MSSDK}/bin/rc.exe\""
-		    lflags="-nologo -MACHINE:${MACHINE} -LIBPATH:\"${MSSDK}/Lib/${MACHINE}\""
-		    LINKBIN="\"${PATH64}/link.exe\""
+		    CC="cl.exe"
+		    RC="rc.exe"
+		    lflags="${lflags} -nologo -MACHINE:${MACHINE} "
+		    LINKBIN="link.exe"
 		    CFLAGS_DEBUG="-nologo -Zi -Od -W3 ${runtime}d"
 		    CFLAGS_OPTIMIZE="-nologo -O2 -W2 ${runtime}"
 		    # Avoid 'unresolved external symbol __security_cookie'
 		    # errors, c.f. http://support.microsoft.com/?id=894573
 		    TEA_ADD_LIBS([bufferoverflowU.lib])
-		elif test "$doWince" != "no" ; then
-		    CEBINROOT="${WCEROOT}/EVC/${OSVERSION}/bin"
-		    if test "${TARGETCPU}" = "X86"; then
-			CC="\"${CEBINROOT}/cl.exe\""
-		    else
-			CC="\"${CEBINROOT}/cl${ARCH}.exe\""
-		    fi
-		    CFLAGS="$CFLAGS -I\"${CELIB_DIR}/inc\" -I\"${CEINCLUDE}\""
-		    RC="\"${WCEROOT}/Common/EVC/bin/rc.exe\""
-		    arch=`echo ${ARCH} | awk '{print tolower([$]0)}'`
-		    defs="${ARCH} _${ARCH}_ ${arch} PALM_SIZE _MT _WINDOWS"
-		    if test "${SHARED_BUILD}" = "1" ; then
-			# Static CE builds require static celib as well
-		    	defs="${defs} _DLL"
-		    fi
-		    for i in $defs ; do
-			AC_DEFINE_UNQUOTED($i, 1, [WinCE def ]$i)
-		    done
-		    AC_DEFINE_UNQUOTED(_WIN32_WCE, $CEVERSION, [_WIN32_WCE version])
-		    AC_DEFINE_UNQUOTED(UNDER_CE, $CEVERSION, [UNDER_CE version])
-		    CFLAGS_DEBUG="-nologo -Zi -Od"
-		    CFLAGS_OPTIMIZE="-nologo -Ox"
-		    lversion=`echo ${CEVERSION} | sed -e 's/\(.\)\(..\)/\1\.\2/'`
-		    lflags="-MACHINE:${ARCH} -LIBPATH:\"${CELIBPATH}\" -subsystem:windowsce,${lversion} -nologo"
-		    LINKBIN="\"${CEBINROOT}/link.exe\""
-		    AC_SUBST(CELIB_DIR)
 		else
 		    RC="rc"
-		    lflags="-nologo"
-    		    LINKBIN="link"
+		    lflags="${lflags} -nologo"
+		    LINKBIN="link"
 		    CFLAGS_DEBUG="-nologo -Z7 -Od -W3 -WX ${runtime}d"
 		    CFLAGS_OPTIMIZE="-nologo -O2 -W2 ${runtime}"
 		fi
@@ -1315,13 +1228,50 @@
 
 	    if test "$GCC" = "yes"; then
 		# mingw gcc mode
-		RC="windres"
+		AC_CHECK_TOOL(RC, windres)
 		CFLAGS_DEBUG="-g"
 		CFLAGS_OPTIMIZE="-O2 -fomit-frame-pointer"
-		SHLIB_LD="$CC -shared"
+		SHLIB_LD='${CC} -shared'
 		UNSHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}.a'
 		LDFLAGS_CONSOLE="-wl,--subsystem,console ${lflags}"
 		LDFLAGS_WINDOW="-wl,--subsystem,windows ${lflags}"
+
+		AC_CACHE_CHECK(for cross-compile version of gcc,
+			ac_cv_cross,
+			AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
+			    #ifdef _WIN32
+				#error cross-compiler
+			    #endif
+			]], [[]])],
+			[ac_cv_cross=yes],
+			[ac_cv_cross=no])
+		      )
+		      if test "$ac_cv_cross" = "yes"; then
+			case "$do64bit" in
+			    amd64|x64|yes)
+				CC="x86_64-w64-mingw32-${CC}"
+				LD="x86_64-w64-mingw32-ld"
+				AR="x86_64-w64-mingw32-ar"
+				RANLIB="x86_64-w64-mingw32-ranlib"
+				RC="x86_64-w64-mingw32-windres"
+			    ;;
+			    arm64|aarch64)
+				CC="aarch64-w64-mingw32-clang"
+				LD="aarch64-w64-mingw32-ld"
+				AR="aarch64-w64-mingw32-ar"
+				RANLIB="aarch64-w64-mingw32-ranlib"
+				RC="aarch64-w64-mingw32-windres"
+			    ;;
+			    *)
+				CC="i686-w64-mingw32-${CC}"
+				LD="i686-w64-mingw32-ld"
+				AR="i686-w64-mingw32-ar"
+				RANLIB="i686-w64-mingw32-ranlib"
+				RC="i686-w64-mingw32-windres"
+			    ;;
+			esac
+		fi
+
 	    else
 		SHLIB_LD="${LINKBIN} -dll ${lflags}"
 		# link -lib only works when -lib is the first arg
@@ -1335,25 +1285,17 @@
 		# This essentially turns it all on.
 		LDFLAGS_DEBUG="-debug -debugtype:cv"
 		LDFLAGS_OPTIMIZE="-release"
-		if test "$doWince" != "no" ; then
-		    LDFLAGS_CONSOLE="-link ${lflags}"
-		    LDFLAGS_WINDOW=${LDFLAGS_CONSOLE}
-		else
-		    LDFLAGS_CONSOLE="-link -subsystem:console ${lflags}"
-		    LDFLAGS_WINDOW="-link -subsystem:windows ${lflags}"
-		fi
+		LDFLAGS_CONSOLE="-link -subsystem:console ${lflags}"
+		LDFLAGS_WINDOW="-link -subsystem:windows ${lflags}"
 	    fi
 
-	    SHLIB_LD_LIBS='${LIBS}'
 	    SHLIB_SUFFIX=".dll"
 	    SHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}.dll'
 
 	    TCL_LIB_VERSIONS_OK=nodots
-	    # Bogus to avoid getting this turned off
-	    DL_OBJS="tclLoadNone.obj"
     	    ;;
 	AIX-*)
-	    AS_IF([test "${TCL_THREADS}" = "1" -a "$GCC" != "yes"], [
+	    AS_IF([test "$GCC" != "yes"], [
 		# AIX requires the _r compiler when gcc isn't being used
 		case "${CC}" in
 		    *_r|*_r\ *)
@@ -1368,14 +1310,12 @@
 	    ])
 	    LIBS="$LIBS -lc"
 	    SHLIB_CFLAGS=""
-	    SHLIB_LD_LIBS='${LIBS}'
 	    SHLIB_SUFFIX=".so"
 
-	    DL_OBJS="tclLoadDl.o"
 	    LD_LIBRARY_PATH_VAR="LIBPATH"
 
-	    # Check to enable 64-bit flags for compiler/linker on AIX 4+
-	    AS_IF([test "$do64bit" = yes -a "`uname -v`" -gt 3], [
+	    # Check to enable 64-bit flags for compiler/linker
+	    AS_IF([test "$do64bit" = yes], [
 		AS_IF([test "$GCC" = yes], [
 		    AC_MSG_WARN([64bit mode not supported with GCC on $system])
 		], [
@@ -1391,58 +1331,28 @@
 	    AS_IF([test "`uname -m`" = ia64], [
 		# AIX-5 uses ELF style dynamic libraries on IA-64, but not PPC
 		SHLIB_LD="/usr/ccs/bin/ld -G -z text"
-		# AIX-5 has dl* in libc.so
-		DL_LIBS=""
 		AS_IF([test "$GCC" = yes], [
-		    CC_SEARCH_FLAGS='-Wl,-R,${LIB_RUNTIME_DIR}'
+		    CC_SEARCH_FLAGS='"-Wl,-R,${LIB_RUNTIME_DIR}"'
 		], [
-		    CC_SEARCH_FLAGS='-R${LIB_RUNTIME_DIR}'
+		    CC_SEARCH_FLAGS='"-R${LIB_RUNTIME_DIR}"'
 		])
-		LD_SEARCH_FLAGS='-R ${LIB_RUNTIME_DIR}'
+		LD_SEARCH_FLAGS='-R "${LIB_RUNTIME_DIR}"'
 	    ], [
-		AS_IF([test "$GCC" = yes], [SHLIB_LD='${CC} -shared'], [
-		    SHLIB_LD="/bin/ld -bhalt:4 -bM:SRE -bE:lib.exp -H512 -T512 -bnoentry"
+		AS_IF([test "$GCC" = yes], [
+		    SHLIB_LD='${CC} -shared -Wl,-bexpall'
+		], [
+		    SHLIB_LD="/bin/ld -bhalt:4 -bM:SRE -bexpall -H512 -T512 -bnoentry"
+		    LDFLAGS="$LDFLAGS -brtl"
 		])
-		SHLIB_LD="${TCL_SRC_DIR}/unix/ldAix ${SHLIB_LD} ${SHLIB_LD_FLAGS}"
-		DL_LIBS="-ldl"
-		CC_SEARCH_FLAGS='-L${LIB_RUNTIME_DIR}'
+		SHLIB_LD="${SHLIB_LD} ${SHLIB_LD_FLAGS}"
+		CC_SEARCH_FLAGS='"-L${LIB_RUNTIME_DIR}"'
 		LD_SEARCH_FLAGS=${CC_SEARCH_FLAGS}
-		TCL_NEEDS_EXP_FILE=1
-		# TEA specific: use PACKAGE_VERSION instead of VERSION
-		TCL_EXPORT_FILE_SUFFIX='${PACKAGE_VERSION}.exp'
-	    ])
-
-	    # AIX v<=4.1 has some different flags than 4.2+
-	    AS_IF([test "$system" = "AIX-4.1" -o "`uname -v`" -lt 4], [
-		AC_LIBOBJ([tclLoadAix])
-		DL_LIBS="-lld"
-	    ])
-
-	    # On AIX <=v4 systems, libbsd.a has to be linked in to support
-	    # non-blocking file IO.  This library has to be linked in after
-	    # the MATH_LIBS or it breaks the pow() function.  The way to
-	    # insure proper sequencing, is to add it to the tail of MATH_LIBS.
-	    # This library also supplies gettimeofday.
-	    #
-	    # AIX does not have a timezone field in struct tm. When the AIX
-	    # bsd library is used, the timezone global and the gettimeofday
-	    # methods are to be avoided for timezone deduction instead, we
-	    # deduce the timezone by comparing the localtime result on a
-	    # known GMT value.
-
-	    AC_CHECK_LIB(bsd, gettimeofday, libbsd=yes, libbsd=no)
-	    AS_IF([test $libbsd = yes], [
-	    	MATH_LIBS="$MATH_LIBS -lbsd"
-	    	AC_DEFINE(USE_DELTA_FOR_TZ, 1, [Do we need a special AIX hack for timezones?])
 	    ])
 	    ;;
 	BeOS*)
 	    SHLIB_CFLAGS="-fPIC"
 	    SHLIB_LD='${CC} -nostart'
-	    SHLIB_LD_LIBS='${LIBS}'
 	    SHLIB_SUFFIX=".so"
-	    DL_OBJS="tclLoadDl.o"
-	    DL_LIBS="-ldl"
 
 	    #-----------------------------------------------------------
 	    # Check for inet_ntoa in -lbind, for BeOS (which also needs
@@ -1454,20 +1364,14 @@
 	BSD/OS-2.1*|BSD/OS-3*)
 	    SHLIB_CFLAGS=""
 	    SHLIB_LD="shlicc -r"
-	    SHLIB_LD_LIBS='${LIBS}'
 	    SHLIB_SUFFIX=".so"
-	    DL_OBJS="tclLoadDl.o"
-	    DL_LIBS="-ldl"
 	    CC_SEARCH_FLAGS=""
 	    LD_SEARCH_FLAGS=""
 	    ;;
 	BSD/OS-4.*)
 	    SHLIB_CFLAGS="-export-dynamic -fPIC"
 	    SHLIB_LD='${CC} -shared'
-	    SHLIB_LD_LIBS='${LIBS}'
 	    SHLIB_SUFFIX=".so"
-	    DL_OBJS="tclLoadDl.o"
-	    DL_LIBS="-ldl"
 	    LDFLAGS="$LDFLAGS -export-dynamic"
 	    CC_SEARCH_FLAGS=""
 	    LD_SEARCH_FLAGS=""
@@ -1475,11 +1379,10 @@
 	CYGWIN_*)
 	    SHLIB_CFLAGS=""
 	    SHLIB_LD='${CC} -shared'
-	    SHLIB_LD_LIBS='${LIBS}'
 	    SHLIB_SUFFIX=".dll"
-	    EXE_SUFFIX=".exe"
-	    DL_OBJS="tclLoadDl.o"
-	    DL_LIBS="-ldl"
+	    SHLIB_LD_LIBS="${SHLIB_LD_LIBS} -Wl,--out-implib,\$[@].a"
+	    EXEEXT=".exe"
+	    do64bit_ok=yes
 	    CC_SEARCH_FLAGS=""
 	    LD_SEARCH_FLAGS=""
 	    ;;
@@ -1488,19 +1391,14 @@
 	    SHLIB_LD='${CC} -G'
 	    SHLIB_LD_LIBS=""
 	    SHLIB_SUFFIX=".so"
-	    DL_OBJS="tclLoadDl.o"
-	    DL_LIBS="-ldl"
 	    CC_SEARCH_FLAGS=""
 	    LD_SEARCH_FLAGS=""
 	    ;;
 	Haiku*)
 	    LDFLAGS="$LDFLAGS -Wl,--export-dynamic"
 	    SHLIB_CFLAGS="-fPIC"
-	    SHLIB_LD_LIBS='${LIBS}'
 	    SHLIB_SUFFIX=".so"
-	    SHLIB_LD='${CC} -shared ${CFLAGS} ${LDFLAGS}'
-	    DL_OBJS="tclLoadDl.o"
-	    DL_LIBS="-lroot"
+	    SHLIB_LD='${CC} ${CFLAGS} ${LDFLAGS} -shared'
 	    AC_CHECK_LIB(network, inet_ntoa, [LIBS="$LIBS -lnetwork"])
 	    ;;
 	HP-UX-*.11.*)
@@ -1512,21 +1410,16 @@
 
 	    AS_IF([test "`uname -m`" = ia64], [
 		SHLIB_SUFFIX=".so"
-		# Use newer C++ library for C++ extensions
-		#if test "$GCC" != "yes" ; then
-		#   CPPFLAGS="-AA"
-		#fi
 	    ], [
 		SHLIB_SUFFIX=".sl"
 	    ])
 	    AC_CHECK_LIB(dld, shl_load, tcl_ok=yes, tcl_ok=no)
 	    AS_IF([test "$tcl_ok" = yes], [
-		SHLIB_LD_LIBS='${LIBS}'
-		DL_OBJS="tclLoadShl.o"
-		DL_LIBS="-ldld"
-		LDFLAGS="$LDFLAGS -E"
-		CC_SEARCH_FLAGS='-Wl,+s,+b,${LIB_RUNTIME_DIR}:.'
-		LD_SEARCH_FLAGS='+s +b ${LIB_RUNTIME_DIR}:.'
+		SHLIB_CFLAGS="+z"
+		SHLIB_LD="ld -b"
+		LDFLAGS="$LDFLAGS -Wl,-E"
+		CC_SEARCH_FLAGS='"-Wl,+s,+b,${LIB_RUNTIME_DIR}:."'
+		LD_SEARCH_FLAGS='+s +b "${LIB_RUNTIME_DIR}:."'
 		LD_LIBRARY_PATH_VAR="SHLIB_PATH"
 	    ])
 	    AS_IF([test "$GCC" = yes], [
@@ -1534,10 +1427,6 @@
 		LD_SEARCH_FLAGS=${CC_SEARCH_FLAGS}
 	    ], [
 		CFLAGS="$CFLAGS -z"
-		# Users may want PA-RISC 1.1/2.0 portable code - needs HP cc
-		#CFLAGS="$CFLAGS +DAportable"
-		SHLIB_CFLAGS="+z"
-		SHLIB_LD="ld -b"
 	    ])
 
 	    # Check to enable 64-bit flags for compiler/linker
@@ -1548,9 +1437,8 @@
 			    # 64-bit gcc in use.  Fix flags for GNU ld.
 			    do64bit_ok=yes
 			    SHLIB_LD='${CC} -shared'
-			    SHLIB_LD_LIBS='${LIBS}'
 			    AS_IF([test $doRpath = yes], [
-				CC_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'])
+				CC_SEARCH_FLAGS='"-Wl,-rpath,${LIB_RUNTIME_DIR}"'])
 			    LD_SEARCH_FLAGS=${CC_SEARCH_FLAGS}
 			    ;;
 			*)
@@ -1570,34 +1458,27 @@
 		SHLIB_CFLAGS="+z"
 		SHLIB_LD="ld -b"
 		SHLIB_LD_LIBS=""
-		DL_OBJS="tclLoadShl.o"
-		DL_LIBS="-ldld"
 		LDFLAGS="$LDFLAGS -Wl,-E"
-		CC_SEARCH_FLAGS='-Wl,+s,+b,${LIB_RUNTIME_DIR}:.'
-		LD_SEARCH_FLAGS='+s +b ${LIB_RUNTIME_DIR}:.'
+		CC_SEARCH_FLAGS='"-Wl,+s,+b,${LIB_RUNTIME_DIR}:."'
+		LD_SEARCH_FLAGS='+s +b "${LIB_RUNTIME_DIR}:."'
 		LD_LIBRARY_PATH_VAR="SHLIB_PATH"
 	    ]) ;;
 	IRIX-5.*)
 	    SHLIB_CFLAGS=""
 	    SHLIB_LD="ld -shared -rdata_shared"
-	    SHLIB_LD_LIBS='${LIBS}'
 	    SHLIB_SUFFIX=".so"
-	    DL_OBJS="tclLoadDl.o"
-	    DL_LIBS=""
+	    AC_LIBOBJ(mkstemp)
 	    AS_IF([test $doRpath = yes], [
-		CC_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'
-		LD_SEARCH_FLAGS='-rpath ${LIB_RUNTIME_DIR}'])
+		CC_SEARCH_FLAGS='"-Wl,-rpath,${LIB_RUNTIME_DIR}"'
+		LD_SEARCH_FLAGS='-rpath "${LIB_RUNTIME_DIR}"'])
 	    ;;
 	IRIX-6.*)
 	    SHLIB_CFLAGS=""
 	    SHLIB_LD="ld -n32 -shared -rdata_shared"
-	    SHLIB_LD_LIBS='${LIBS}'
 	    SHLIB_SUFFIX=".so"
-	    DL_OBJS="tclLoadDl.o"
-	    DL_LIBS=""
 	    AS_IF([test $doRpath = yes], [
-		CC_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'
-		LD_SEARCH_FLAGS='-rpath ${LIB_RUNTIME_DIR}'])
+		CC_SEARCH_FLAGS='"-Wl,-rpath,${LIB_RUNTIME_DIR}"'
+		LD_SEARCH_FLAGS='-rpath "${LIB_RUNTIME_DIR}"'])
 	    AS_IF([test "$GCC" = yes], [
 		CFLAGS="$CFLAGS -mabi=n32"
 		LDFLAGS="$LDFLAGS -mabi=n32"
@@ -1617,13 +1498,10 @@
 	IRIX64-6.*)
 	    SHLIB_CFLAGS=""
 	    SHLIB_LD="ld -n32 -shared -rdata_shared"
-	    SHLIB_LD_LIBS='${LIBS}'
 	    SHLIB_SUFFIX=".so"
-	    DL_OBJS="tclLoadDl.o"
-	    DL_LIBS=""
 	    AS_IF([test $doRpath = yes], [
-		CC_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'
-		LD_SEARCH_FLAGS='-rpath ${LIB_RUNTIME_DIR}'])
+		CC_SEARCH_FLAGS='"-Wl,-rpath,${LIB_RUNTIME_DIR}"'
+		LD_SEARCH_FLAGS='-rpath "${LIB_RUNTIME_DIR}"'])
 
 	    # Check to enable 64-bit flags for compiler/linker
 
@@ -1638,32 +1516,37 @@
 	        ])
 	    ])
 	    ;;
-	Linux*)
+	Linux*|GNU*|NetBSD-Debian|DragonFly-*|FreeBSD-*)
 	    SHLIB_CFLAGS="-fPIC"
-	    SHLIB_LD_LIBS='${LIBS}'
 	    SHLIB_SUFFIX=".so"
 
 	    # TEA specific:
 	    CFLAGS_OPTIMIZE="-O2 -fomit-frame-pointer"
-	    # egcs-2.91.66 on Redhat Linux 6.0 generates lots of warnings
-	    # when you inline the string and math operations.  Turn this off to
-	    # get rid of the warnings.
-	    #CFLAGS_OPTIMIZE="${CFLAGS_OPTIMIZE} -D__NO_STRING_INLINES -D__NO_MATH_INLINES"
 
 	    # TEA specific: use LDFLAGS_DEFAULT instead of LDFLAGS
-	    SHLIB_LD='${CC} -shared ${CFLAGS} ${LDFLAGS_DEFAULT}'
-	    DL_OBJS="tclLoadDl.o"
-	    DL_LIBS="-ldl"
+	    SHLIB_LD='${CC} ${CFLAGS} ${LDFLAGS_DEFAULT} -shared'
 	    LDFLAGS="$LDFLAGS -Wl,--export-dynamic"
+
+	    case $system in
+	    DragonFly-*|FreeBSD-*)
+		AS_IF([test "${TCL_THREADS}" = "1"], [
+		    # The -pthread needs to go in the LDFLAGS, not LIBS
+		    LIBS=`echo $LIBS | sed s/-pthread//`
+		    CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
+		    LDFLAGS="$LDFLAGS $PTHREAD_LIBS"])
+	    ;;
+            esac
+
 	    AS_IF([test $doRpath = yes], [
-		CC_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'])
+		CC_SEARCH_FLAGS='"-Wl,-rpath,${LIB_RUNTIME_DIR}"'])
 	    LD_SEARCH_FLAGS=${CC_SEARCH_FLAGS}
 	    AS_IF([test "`uname -m`" = "alpha"], [CFLAGS="$CFLAGS -mieee"])
 	    AS_IF([test $do64bit = yes], [
 		AC_CACHE_CHECK([if compiler accepts -m64 flag], tcl_cv_cc_m64, [
 		    hold_cflags=$CFLAGS
 		    CFLAGS="$CFLAGS -m64"
-		    AC_TRY_LINK(,, tcl_cv_cc_m64=yes, tcl_cv_cc_m64=no)
+		    AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
+			    [tcl_cv_cc_m64=yes],[tcl_cv_cc_m64=no])
 		    CFLAGS=$hold_cflags])
 		AS_IF([test $tcl_cv_cc_m64 = yes], [
 		    CFLAGS="$CFLAGS -m64"
@@ -1678,163 +1561,56 @@
 	    # files in compat/*.c is being linked in.
 
 	    AS_IF([test x"${USE_COMPAT}" != x],[CFLAGS="$CFLAGS -fno-inline"])
-
-	    ;;
-	GNU*)
-	    SHLIB_CFLAGS="-fPIC"
-	    SHLIB_LD_LIBS='${LIBS}'
-	    SHLIB_SUFFIX=".so"
-
-	    SHLIB_LD='${CC} -shared'
-	    DL_OBJS=""
-	    DL_LIBS="-ldl"
-	    LDFLAGS="$LDFLAGS -Wl,--export-dynamic"
-	    CC_SEARCH_FLAGS=""
-	    LD_SEARCH_FLAGS=""
-	    AS_IF([test "`uname -m`" = "alpha"], [CFLAGS="$CFLAGS -mieee"])
 	    ;;
 	Lynx*)
 	    SHLIB_CFLAGS="-fPIC"
-	    SHLIB_LD_LIBS='${LIBS}'
 	    SHLIB_SUFFIX=".so"
 	    CFLAGS_OPTIMIZE=-02
 	    SHLIB_LD='${CC} -shared'
-	    DL_OBJS="tclLoadDl.o"
-	    DL_LIBS="-mshared -ldl"
 	    LD_FLAGS="-Wl,--export-dynamic"
 	    AS_IF([test $doRpath = yes], [
-		CC_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'
-		LD_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'])
-	    ;;
-	MP-RAS-02*)
-	    SHLIB_CFLAGS="-K PIC"
-	    SHLIB_LD='${CC} -G'
-	    SHLIB_LD_LIBS=""
-	    SHLIB_SUFFIX=".so"
-	    DL_OBJS="tclLoadDl.o"
-	    DL_LIBS="-ldl"
-	    CC_SEARCH_FLAGS=""
-	    LD_SEARCH_FLAGS=""
-	    ;;
-	MP-RAS-*)
-	    SHLIB_CFLAGS="-K PIC"
-	    SHLIB_LD='${CC} -G'
-	    SHLIB_LD_LIBS=""
-	    SHLIB_SUFFIX=".so"
-	    DL_OBJS="tclLoadDl.o"
-	    DL_LIBS="-ldl"
-	    LDFLAGS="$LDFLAGS -Wl,-Bexport"
-	    CC_SEARCH_FLAGS=""
-	    LD_SEARCH_FLAGS=""
-	    ;;
-	NetBSD-1.*|FreeBSD-[[1-2]].*)
-	    SHLIB_CFLAGS="-fPIC"
-	    SHLIB_LD="ld -Bshareable -x"
-	    SHLIB_LD_LIBS='${LIBS}'
-	    SHLIB_SUFFIX=".so"
-	    DL_OBJS="tclLoadDl.o"
-	    DL_LIBS=""
-	    AS_IF([test $doRpath = yes], [
-		CC_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'
-		LD_SEARCH_FLAGS='-rpath ${LIB_RUNTIME_DIR}'])
-	    AC_CACHE_CHECK([for ELF], tcl_cv_ld_elf, [
-		AC_EGREP_CPP(yes, [
-#ifdef __ELF__
-	yes
-#endif
-		], tcl_cv_ld_elf=yes, tcl_cv_ld_elf=no)])
-	    AS_IF([test $tcl_cv_ld_elf = yes], [
-		SHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}.so'
-	    ], [
-		SHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}.so.${SHLIB_VERSION}'
-	    ])
-
-	    # Ancient FreeBSD doesn't handle version numbers with dots.
-
-	    UNSHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}.a'
-	    TCL_LIB_VERSIONS_OK=nodots
+		CC_SEARCH_FLAGS='"-Wl,-rpath,${LIB_RUNTIME_DIR}"'
+		LD_SEARCH_FLAGS='"-Wl,-rpath,${LIB_RUNTIME_DIR}"'])
 	    ;;
 	OpenBSD-*)
-	    SHLIB_CFLAGS="-fPIC"
-	    SHLIB_LD='${CC} -shared ${SHLIB_CFLAGS}'
-	    SHLIB_LD_LIBS='${LIBS}'
+	    arch=`arch -s`
+	    case "$arch" in
+	    alpha|sparc64)
+		SHLIB_CFLAGS="-fPIC"
+		;;
+	    *)
+		SHLIB_CFLAGS="-fpic"
+		;;
+	    esac
+	    SHLIB_LD='${CC} ${SHLIB_CFLAGS} -shared'
 	    SHLIB_SUFFIX=".so"
-	    DL_OBJS="tclLoadDl.o"
-	    DL_LIBS=""
 	    AS_IF([test $doRpath = yes], [
-		CC_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'])
+		CC_SEARCH_FLAGS='"-Wl,-rpath,${LIB_RUNTIME_DIR}"'])
 	    LD_SEARCH_FLAGS=${CC_SEARCH_FLAGS}
-	    SHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}.so.${SHLIB_VERSION}'
-	    AC_CACHE_CHECK([for ELF], tcl_cv_ld_elf, [
-		AC_EGREP_CPP(yes, [
-#ifdef __ELF__
-	yes
-#endif
-		], tcl_cv_ld_elf=yes, tcl_cv_ld_elf=no)])
-	    AS_IF([test $tcl_cv_ld_elf = yes], [
-		LDFLAGS=-Wl,-export-dynamic
-	    ], [LDFLAGS=""])
-	    AS_IF([test "${TCL_THREADS}" = "1"], [
-		# OpenBSD builds and links with -pthread, never -lpthread.
-		LIBS=`echo $LIBS | sed s/-lpthread//`
-		CFLAGS="$CFLAGS -pthread"
-		SHLIB_CFLAGS="$SHLIB_CFLAGS -pthread"
-	    ])
+	    SHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}.so${SHLIB_VERSION}'
+	    LDFLAGS="$LDFLAGS -Wl,-export-dynamic"
+	    CFLAGS_OPTIMIZE="-O2"
+	    # On OpenBSD:	Compile with -pthread
+	    #		Don't link with -lpthread
+	    LIBS=`echo $LIBS | sed s/-lpthread//`
+	    CFLAGS="$CFLAGS -pthread"
 	    # OpenBSD doesn't do version numbers with dots.
 	    UNSHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}.a'
 	    TCL_LIB_VERSIONS_OK=nodots
 	    ;;
-	NetBSD-*|FreeBSD-[[3-4]].*)
-	    # FreeBSD 3.* and greater have ELF.
-	    # NetBSD 2.* has ELF and can use 'cc -shared' to build shared libs
+	NetBSD-*)
+	    # NetBSD has ELF and can use 'cc -shared' to build shared libs
 	    SHLIB_CFLAGS="-fPIC"
-	    SHLIB_LD='${CC} -shared ${SHLIB_CFLAGS}'
-	    SHLIB_LD_LIBS='${LIBS}'
+	    SHLIB_LD='${CC} ${SHLIB_CFLAGS} -shared'
 	    SHLIB_SUFFIX=".so"
-	    DL_OBJS="tclLoadDl.o"
-	    DL_LIBS=""
 	    LDFLAGS="$LDFLAGS -export-dynamic"
 	    AS_IF([test $doRpath = yes], [
-		CC_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'])
+		CC_SEARCH_FLAGS='"-Wl,-rpath,${LIB_RUNTIME_DIR}"'])
 	    LD_SEARCH_FLAGS=${CC_SEARCH_FLAGS}
-	    AS_IF([test "${TCL_THREADS}" = "1"], [
-		# The -pthread needs to go in the CFLAGS, not LIBS
-		LIBS=`echo $LIBS | sed s/-pthread//`
-		CFLAGS="$CFLAGS -pthread"
-	    	LDFLAGS="$LDFLAGS -pthread"
-	    ])
-	    case $system in
-	    FreeBSD-3.*)
-	    	# FreeBSD-3 doesn't handle version numbers with dots.
-	    	UNSHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}.a'
-	    	SHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}.so'
-	    	TCL_LIB_VERSIONS_OK=nodots
-		;;
-	    esac
-	    ;;
-	FreeBSD-*)
-	    # This configuration from FreeBSD Ports.
-	    SHLIB_CFLAGS="-fPIC"
-	    SHLIB_LD="${CC} -shared"
-	    TCL_SHLIB_LD_EXTRAS="-soname \$[@]"
-	    SHLIB_LD_LIBS='${LIBS}'
-	    SHLIB_SUFFIX=".so"
-	    DL_OBJS="tclLoadDl.o"
-	    DL_LIBS=""
-	    LDFLAGS=""
-	    AS_IF([test $doRpath = yes], [
-		CC_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'
-		LD_SEARCH_FLAGS='-rpath ${LIB_RUNTIME_DIR}'])
-	    AS_IF([test "${TCL_THREADS}" = "1"], [
-		# The -pthread needs to go in the LDFLAGS, not LIBS
-		LIBS=`echo $LIBS | sed s/-pthread//`
-		CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
-		LDFLAGS="$LDFLAGS $PTHREAD_LIBS"])
-	    # Version numbers are dot-stripped by system policy.
-	    TCL_TRIM_DOTS=`echo ${VERSION} | tr -d .`
-	    UNSHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}.a'
-	    SHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}\$\{DBGX\}.so.1'
-	    TCL_LIB_VERSIONS_OK=nodots
+	    # The -pthread needs to go in the CFLAGS, not LIBS
+	    LIBS=`echo $LIBS | sed s/-pthread//`
+	    CFLAGS="$CFLAGS -pthread"
+	    LDFLAGS="$LDFLAGS -pthread"
 	    ;;
 	Darwin-*)
 	    CFLAGS_OPTIMIZE="-Os"
@@ -1855,8 +1631,8 @@
 				tcl_cv_cc_arch_ppc64, [
 			    hold_cflags=$CFLAGS
 			    CFLAGS="$CFLAGS -arch ppc64 -mpowerpc64 -mcpu=G5"
-			    AC_TRY_LINK(,, tcl_cv_cc_arch_ppc64=yes,
-				    tcl_cv_cc_arch_ppc64=no)
+			    AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
+				    [tcl_cv_cc_arch_ppc64=yes],[tcl_cv_cc_arch_ppc64=no])
 			    CFLAGS=$hold_cflags])
 			AS_IF([test $tcl_cv_cc_arch_ppc64 = yes], [
 			    CFLAGS="$CFLAGS -arch ppc64 -mpowerpc64 -mcpu=G5"
@@ -1867,8 +1643,8 @@
 				tcl_cv_cc_arch_x86_64, [
 			    hold_cflags=$CFLAGS
 			    CFLAGS="$CFLAGS -arch x86_64"
-			    AC_TRY_LINK(,, tcl_cv_cc_arch_x86_64=yes,
-				    tcl_cv_cc_arch_x86_64=no)
+			    AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
+				    [tcl_cv_cc_arch_x86_64=yes],[tcl_cv_cc_arch_x86_64=no])
 			    CFLAGS=$hold_cflags])
 			AS_IF([test $tcl_cv_cc_arch_x86_64 = yes], [
 			    CFLAGS="$CFLAGS -arch x86_64"
@@ -1888,29 +1664,23 @@
 	    AC_CACHE_CHECK([if ld accepts -single_module flag], tcl_cv_ld_single_module, [
 		hold_ldflags=$LDFLAGS
 		LDFLAGS="$LDFLAGS -dynamiclib -Wl,-single_module"
-		AC_TRY_LINK(, [int i;], tcl_cv_ld_single_module=yes, tcl_cv_ld_single_module=no)
+		AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[int i;]])],
+			[tcl_cv_ld_single_module=yes],[tcl_cv_ld_single_module=no])
 		LDFLAGS=$hold_ldflags])
 	    AS_IF([test $tcl_cv_ld_single_module = yes], [
 		SHLIB_LD="${SHLIB_LD} -Wl,-single_module"
 	    ])
-	    # TEA specific: link shlib with current and compatiblity version flags
+	    # TEA specific: link shlib with current and compatibility version flags
 	    vers=`echo ${PACKAGE_VERSION} | sed -e 's/^\([[0-9]]\{1,5\}\)\(\(\.[[0-9]]\{1,3\}\)\{0,2\}\).*$/\1\2/p' -e d`
 	    SHLIB_LD="${SHLIB_LD} -current_version ${vers:-0} -compatibility_version ${vers:-0}"
-	    SHLIB_LD_LIBS='${LIBS}'
 	    SHLIB_SUFFIX=".dylib"
-	    DL_OBJS="tclLoadDyld.o"
-	    DL_LIBS=""
-	    # Don't use -prebind when building for Mac OS X 10.4 or later only:
-	    AS_IF([test "`echo "${MACOSX_DEPLOYMENT_TARGET}" | awk -F '10\\.' '{print int([$]2)}'`" -lt 4 -a \
-		"`echo "${CPPFLAGS}" | awk -F '-mmacosx-version-min=10\\.' '{print int([$]2)}'`" -lt 4], [
-		LDFLAGS="$LDFLAGS -prebind"])
 	    LDFLAGS="$LDFLAGS -headerpad_max_install_names"
 	    AC_CACHE_CHECK([if ld accepts -search_paths_first flag],
 		    tcl_cv_ld_search_paths_first, [
 		hold_ldflags=$LDFLAGS
 		LDFLAGS="$LDFLAGS -Wl,-search_paths_first"
-		AC_TRY_LINK(, [int i;], tcl_cv_ld_search_paths_first=yes,
-			tcl_cv_ld_search_paths_first=no)
+		AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[int i;]])],
+			[tcl_cv_ld_search_paths_first=yes],[tcl_cv_ld_search_paths_first=no])
 		LDFLAGS=$hold_ldflags])
 	    AS_IF([test $tcl_cv_ld_search_paths_first = yes], [
 		LDFLAGS="$LDFLAGS -Wl,-search_paths_first"
@@ -1918,6 +1688,7 @@
 	    AS_IF([test "$tcl_cv_cc_visibility_hidden" != yes], [
 		AC_DEFINE(MODULE_SCOPE, [__private_extern__],
 		    [Compiler support for module scope symbols])
+		tcl_cv_cc_visibility_hidden=yes
 	    ])
 	    CC_SEARCH_FLAGS=""
 	    LD_SEARCH_FLAGS=""
@@ -1932,8 +1703,8 @@
 			done
 			CPPFLAGS="$CPPFLAGS -I/usr/X11R6/include"
 			LDFLAGS="$LDFLAGS -L/usr/X11R6/lib -lX11"
-			AC_TRY_LINK([#include <X11/Xlib.h>], [XrmInitialize();],
-			    tcl_cv_lib_x11_64=yes, tcl_cv_lib_x11_64=no)
+			AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>]], [[XrmInitialize();]])],
+			    [tcl_cv_lib_x11_64=yes],[tcl_cv_lib_x11_64=no])
 			for v in CFLAGS CPPFLAGS LDFLAGS; do
 			    eval $v'="$hold_'$v'"'
 			done])
@@ -1945,8 +1716,8 @@
 			done
 			CPPFLAGS="$CPPFLAGS -DUSE_TCL_STUBS=1 -DUSE_TK_STUBS=1 ${TCL_INCLUDES} ${TK_INCLUDES}"
 			LDFLAGS="$LDFLAGS ${TCL_STUB_LIB_SPEC} ${TK_STUB_LIB_SPEC}"
-			AC_TRY_LINK([#include <tk.h>], [Tk_InitStubs(NULL, "", 0);],
-			    tcl_cv_lib_tk_64=yes, tcl_cv_lib_tk_64=no)
+			AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <tk.h>]], [[Tk_InitStubs(NULL, "", 0);]])],
+			    [tcl_cv_lib_tk_64=yes],[tcl_cv_lib_tk_64=no])
 			for v in CFLAGS CPPFLAGS LDFLAGS; do
 			    eval $v'="$hold_'$v'"'
 			done])
@@ -1960,46 +1731,11 @@
 		    done])
 	    ])
 	    ;;
-	NEXTSTEP-*)
-	    SHLIB_CFLAGS=""
-	    SHLIB_LD='${CC} -nostdlib -r'
-	    SHLIB_LD_LIBS=""
-	    SHLIB_SUFFIX=".so"
-	    DL_OBJS="tclLoadNext.o"
-	    DL_LIBS=""
-	    CC_SEARCH_FLAGS=""
-	    LD_SEARCH_FLAGS=""
-	    ;;
 	OS/390-*)
 	    CFLAGS_OPTIMIZE=""		# Optimizer is buggy
 	    AC_DEFINE(_OE_SOCKETS, 1,	# needed in sys/socket.h
 		[Should OS/390 do the right thing with sockets?])
 	    ;;
-	OSF1-1.0|OSF1-1.1|OSF1-1.2)
-	    # OSF/1 1.[012] from OSF, and derivatives, including Paragon OSF/1
-	    SHLIB_CFLAGS=""
-	    # Hack: make package name same as library name
-	    SHLIB_LD='ld -R -export $@:'
-	    SHLIB_LD_LIBS=""
-	    SHLIB_SUFFIX=".so"
-	    DL_OBJS="tclLoadOSF.o"
-	    DL_LIBS=""
-	    CC_SEARCH_FLAGS=""
-	    LD_SEARCH_FLAGS=""
-	    ;;
-	OSF1-1.*)
-	    # OSF/1 1.3 from OSF using ELF, and derivatives, including AD2
-	    SHLIB_CFLAGS="-fPIC"
-	    AS_IF([test "$SHARED_BUILD" = 1], [SHLIB_LD="ld -shared"], [
-	        SHLIB_LD="ld -non_shared"
-	    ])
-	    SHLIB_LD_LIBS=""
-	    SHLIB_SUFFIX=".so"
-	    DL_OBJS="tclLoadDl.o"
-	    DL_LIBS=""
-	    CC_SEARCH_FLAGS=""
-	    LD_SEARCH_FLAGS=""
-	    ;;
 	OSF1-V*)
 	    # Digital OSF/1
 	    SHLIB_CFLAGS=""
@@ -2008,26 +1744,21 @@
 	    ], [
 	        SHLIB_LD='ld -non_shared -expect_unresolved "*"'
 	    ])
-	    SHLIB_LD_LIBS=""
 	    SHLIB_SUFFIX=".so"
-	    DL_OBJS="tclLoadDl.o"
-	    DL_LIBS=""
 	    AS_IF([test $doRpath = yes], [
-		CC_SEARCH_FLAGS='-Wl,-rpath,${LIB_RUNTIME_DIR}'
+		CC_SEARCH_FLAGS='"-Wl,-rpath,${LIB_RUNTIME_DIR}"'
 		LD_SEARCH_FLAGS='-rpath ${LIB_RUNTIME_DIR}'])
 	    AS_IF([test "$GCC" = yes], [CFLAGS="$CFLAGS -mieee"], [
 		CFLAGS="$CFLAGS -DHAVE_TZSET -std1 -ieee"])
 	    # see pthread_intro(3) for pthread support on osf1, k.furukawa
-	    AS_IF([test "${TCL_THREADS}" = 1], [
-		CFLAGS="$CFLAGS -DHAVE_PTHREAD_ATTR_SETSTACKSIZE"
-		CFLAGS="$CFLAGS -DTCL_THREAD_STACK_MIN=PTHREAD_STACK_MIN*64"
-		LIBS=`echo $LIBS | sed s/-lpthreads//`
-		AS_IF([test "$GCC" = yes], [
-		    LIBS="$LIBS -lpthread -lmach -lexc"
-		], [
-		    CFLAGS="$CFLAGS -pthread"
-		    LDFLAGS="$LDFLAGS -pthread"
-		])
+	    CFLAGS="$CFLAGS -DHAVE_PTHREAD_ATTR_SETSTACKSIZE"
+	    CFLAGS="$CFLAGS -DTCL_THREAD_STACK_MIN=PTHREAD_STACK_MIN*64"
+	    LIBS=`echo $LIBS | sed s/-lpthreads//`
+	    AS_IF([test "$GCC" = yes], [
+		LIBS="$LIBS -lpthread -lmach -lexc"
+	    ], [
+		CFLAGS="$CFLAGS -pthread"
+		LDFLAGS="$LDFLAGS -pthread"
 	    ])
 	    ;;
 	QNX-6*)
@@ -2037,60 +1768,23 @@
 	    SHLIB_LD="ld -Bshareable -x"
 	    SHLIB_LD_LIBS=""
 	    SHLIB_SUFFIX=".so"
-	    DL_OBJS="tclLoadDl.o"
-	    # dlopen is in -lc on QNX
-	    DL_LIBS=""
 	    CC_SEARCH_FLAGS=""
 	    LD_SEARCH_FLAGS=""
 	    ;;
 	SCO_SV-3.2*)
-	    # Note, dlopen is available only on SCO 3.2.5 and greater. However,
-	    # this test works, since "uname -s" was non-standard in 3.2.4 and
-	    # below.
 	    AS_IF([test "$GCC" = yes], [
-	    	SHLIB_CFLAGS="-fPIC -melf"
-	    	LDFLAGS="$LDFLAGS -melf -Wl,-Bexport"
+		SHLIB_CFLAGS="-fPIC -melf"
+		LDFLAGS="$LDFLAGS -melf -Wl,-Bexport"
 	    ], [
-	    	SHLIB_CFLAGS="-Kpic -belf"
-	    	LDFLAGS="$LDFLAGS -belf -Wl,-Bexport"
+		SHLIB_CFLAGS="-Kpic -belf"
+		LDFLAGS="$LDFLAGS -belf -Wl,-Bexport"
 	    ])
 	    SHLIB_LD="ld -G"
 	    SHLIB_LD_LIBS=""
 	    SHLIB_SUFFIX=".so"
-	    DL_OBJS="tclLoadDl.o"
-	    DL_LIBS=""
-	    CC_SEARCH_FLAGS=""
-	    LD_SEARCH_FLAGS=""
-	    ;;
-	SINIX*5.4*)
-	    SHLIB_CFLAGS="-K PIC"
-	    SHLIB_LD='${CC} -G'
-	    SHLIB_LD_LIBS=""
-	    SHLIB_SUFFIX=".so"
-	    DL_OBJS="tclLoadDl.o"
-	    DL_LIBS="-ldl"
 	    CC_SEARCH_FLAGS=""
 	    LD_SEARCH_FLAGS=""
 	    ;;
-	SunOS-4*)
-	    SHLIB_CFLAGS="-PIC"
-	    SHLIB_LD="ld"
-	    SHLIB_LD_LIBS=""
-	    SHLIB_SUFFIX=".so"
-	    DL_OBJS="tclLoadDl.o"
-	    DL_LIBS="-ldl"
-	    CC_SEARCH_FLAGS='-L${LIB_RUNTIME_DIR}'
-	    LD_SEARCH_FLAGS=${CC_SEARCH_FLAGS}
-
-	    # SunOS can't handle version numbers with dots in them in library
-	    # specs, like -ltcl7.5, so use -ltcl75 instead.  Also, it
-	    # requires an extra version number at the end of .so file names.
-	    # So, the library has to have a name like libtcl75.so.1.0
-
-	    SHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}.so.${SHLIB_VERSION}'
-	    UNSHARED_LIB_SUFFIX='${TCL_TRIM_DOTS}.a'
-	    TCL_LIB_VERSIONS_OK=nodots
-	    ;;
 	SunOS-5.[[0-6]])
 	    # Careful to not let 5.10+ fall into this case
 
@@ -2102,21 +1796,14 @@
 		[Do we really want to follow the standard? Yes we do!])
 
 	    SHLIB_CFLAGS="-KPIC"
-
-	    # Note: need the LIBS below, otherwise Tk won't find Tcl's
-	    # symbols when dynamically loaded into tclsh.
-
-	    SHLIB_LD_LIBS='${LIBS}'
 	    SHLIB_SUFFIX=".so"
-	    DL_OBJS="tclLoadDl.o"
-	    DL_LIBS="-ldl"
 	    AS_IF([test "$GCC" = yes], [
 		SHLIB_LD='${CC} -shared'
-		CC_SEARCH_FLAGS='-Wl,-R,${LIB_RUNTIME_DIR}'
+		CC_SEARCH_FLAGS='"-Wl,-R,${LIB_RUNTIME_DIR}"'
 		LD_SEARCH_FLAGS=${CC_SEARCH_FLAGS}
 	    ], [
 		SHLIB_LD="/usr/ccs/bin/ld -G -z text"
-		CC_SEARCH_FLAGS='-R ${LIB_RUNTIME_DIR}'
+		CC_SEARCH_FLAGS='-R "${LIB_RUNTIME_DIR}"'
 		LD_SEARCH_FLAGS=${CC_SEARCH_FLAGS}
 	    ])
 	    ;;
@@ -2179,16 +1866,10 @@
 		], [AC_MSG_WARN([64bit mode not supported for $arch])])])
 	    ])
 
-	    # Note: need the LIBS below, otherwise Tk won't find Tcl's
-	    # symbols when dynamically loaded into tclsh.
-
-	    SHLIB_LD_LIBS='${LIBS}'
 	    SHLIB_SUFFIX=".so"
-	    DL_OBJS="tclLoadDl.o"
-	    DL_LIBS="-ldl"
 	    AS_IF([test "$GCC" = yes], [
 		SHLIB_LD='${CC} -shared'
-		CC_SEARCH_FLAGS='-Wl,-R,${LIB_RUNTIME_DIR}'
+		CC_SEARCH_FLAGS='"-Wl,-R,${LIB_RUNTIME_DIR}"'
 		LD_SEARCH_FLAGS=${CC_SEARCH_FLAGS}
 		AS_IF([test "$do64bit_ok" = yes], [
 		    AS_IF([test "$arch" = "sparcv9 sparc"], [
@@ -2215,8 +1896,8 @@
 		    *)
 			SHLIB_LD='/usr/ccs/bin/ld -G -z text';;
 		esac
-		CC_SEARCH_FLAGS='-Wl,-R,${LIB_RUNTIME_DIR}'
-		LD_SEARCH_FLAGS='-R ${LIB_RUNTIME_DIR}'
+		CC_SEARCH_FLAGS='"-Wl,-R,${LIB_RUNTIME_DIR}"'
+		LD_SEARCH_FLAGS='-R "${LIB_RUNTIME_DIR}"'
 	    ])
 	    ;;
 	UNIX_SV* | UnixWare-5*)
@@ -2224,14 +1905,13 @@
 	    SHLIB_LD='${CC} -G'
 	    SHLIB_LD_LIBS=""
 	    SHLIB_SUFFIX=".so"
-	    DL_OBJS="tclLoadDl.o"
-	    DL_LIBS="-ldl"
 	    # Some UNIX_SV* systems (unixware 1.1.2 for example) have linkers
 	    # that don't grok the -Bexport option.  Test that it does.
 	    AC_CACHE_CHECK([for ld accepts -Bexport flag], tcl_cv_ld_Bexport, [
 		hold_ldflags=$LDFLAGS
 		LDFLAGS="$LDFLAGS -Wl,-Bexport"
-		AC_TRY_LINK(, [int i;], tcl_cv_ld_Bexport=yes, tcl_cv_ld_Bexport=no)
+		AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[int i;]])],
+			[tcl_cv_ld_Bexport=yes],[tcl_cv_ld_Bexport=no])
 	        LDFLAGS=$hold_ldflags])
 	    AS_IF([test $tcl_cv_ld_Bexport = yes], [
 		LDFLAGS="$LDFLAGS -Wl,-Bexport"
@@ -2251,57 +1931,140 @@
 dnl # preprocessing tests use only CPPFLAGS.
     AC_CONFIG_COMMANDS_PRE([CFLAGS="${CFLAGS} ${CPPFLAGS}"; CPPFLAGS=""])
 
-    # Step 4: disable dynamic loading if requested via a command-line switch.
-
-    AC_ARG_ENABLE(load,
-	AC_HELP_STRING([--enable-load],
-	    [allow dynamic loading and "load" command (default: on)]),
-	[tcl_ok=$enableval], [tcl_ok=yes])
-    AS_IF([test "$tcl_ok" = no], [DL_OBJS=""])
-
-    AS_IF([test "x$DL_OBJS" != x], [BUILD_DLTEST="\$(DLTEST_TARGETS)"], [
-	AC_MSG_WARN([Can't figure out how to do dynamic loading or shared libraries on this system.])
-	SHLIB_CFLAGS=""
-	SHLIB_LD=""
-	SHLIB_SUFFIX=""
-	DL_OBJS="tclLoadNone.o"
-	DL_LIBS=""
-	LDFLAGS="$LDFLAGS_ORIG"
-	CC_SEARCH_FLAGS=""
-	LD_SEARCH_FLAGS=""
-	BUILD_DLTEST=""
-    ])
+    # Add in the arch flags late to ensure it wasn't removed.
+    # Not necessary in TEA, but this is aligned with core
     LDFLAGS="$LDFLAGS $LDFLAGS_ARCH"
 
     # If we're running gcc, then change the C flags for compiling shared
     # libraries to the right flags for gcc, instead of those for the
     # standard manufacturer compiler.
 
-    AS_IF([test "$DL_OBJS" != "tclLoadNone.o" -a "$GCC" = yes], [
+    AS_IF([test "$GCC" = yes], [
 	case $system in
 	    AIX-*) ;;
 	    BSD/OS*) ;;
-	    CYGWIN_*) ;;
+	    CYGWIN_*|MINGW32_*|MINGW64_*|MSYS_*) ;;
 	    IRIX*) ;;
-	    NetBSD-*|FreeBSD-*|OpenBSD-*) ;;
+	    NetBSD-*|DragonFly-*|FreeBSD-*|OpenBSD-*) ;;
 	    Darwin-*) ;;
 	    SCO_SV-3.2*) ;;
 	    windows) ;;
 	    *) SHLIB_CFLAGS="-fPIC" ;;
 	esac])
 
+    AS_IF([test "$tcl_cv_cc_visibility_hidden" != yes], [
+	AC_DEFINE(MODULE_SCOPE, [extern],
+	    [No Compiler support for module scope symbols])
+    ])
+
     AS_IF([test "$SHARED_LIB_SUFFIX" = ""], [
-	# TEA specific: use PACKAGE_VERSION instead of VERSION
-	SHARED_LIB_SUFFIX='${PACKAGE_VERSION}${SHLIB_SUFFIX}'])
+    # TEA specific: use PACKAGE_VERSION instead of VERSION
+    SHARED_LIB_SUFFIX='${PACKAGE_VERSION}${SHLIB_SUFFIX}'])
     AS_IF([test "$UNSHARED_LIB_SUFFIX" = ""], [
-	# TEA specific: use PACKAGE_VERSION instead of VERSION
-	UNSHARED_LIB_SUFFIX='${PACKAGE_VERSION}.a'])
+    # TEA specific: use PACKAGE_VERSION instead of VERSION
+    UNSHARED_LIB_SUFFIX='${PACKAGE_VERSION}.a'])
+
+    if test "${GCC}" = "yes" -a ${SHLIB_SUFFIX} = ".dll"; then
+	AC_CACHE_CHECK(for SEH support in compiler,
+	    tcl_cv_seh,
+	AC_RUN_IFELSE([AC_LANG_SOURCE([[
+#define WIN32_LEAN_AND_MEAN
+#include <windows.h>
+#undef WIN32_LEAN_AND_MEAN
+
+	    int main(int argc, char** argv) {
+		int a, b = 0;
+		__try {
+		    a = 666 / b;
+		}
+		__except (EXCEPTION_EXECUTE_HANDLER) {
+		    return 0;
+		}
+		return 1;
+	    }
+	]])],
+	    [tcl_cv_seh=yes],
+	    [tcl_cv_seh=no],
+	    [tcl_cv_seh=no])
+	)
+	if test "$tcl_cv_seh" = "no" ; then
+	    AC_DEFINE(HAVE_NO_SEH, 1,
+		    [Defined when mingw does not support SEH])
+	fi
+
+	#
+	# Check to see if the excpt.h include file provided contains the
+	# definition for EXCEPTION_DISPOSITION; if not, which is the case
+	# with Cygwin's version as of 2002-04-10, define it to be int,
+	# sufficient for getting the current code to work.
+	#
+	AC_CACHE_CHECK(for EXCEPTION_DISPOSITION support in include files,
+	    tcl_cv_eh_disposition,
+	    AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
+#	    define WIN32_LEAN_AND_MEAN
+#	    include <windows.h>
+#	    undef WIN32_LEAN_AND_MEAN
+	    ]], [[
+		EXCEPTION_DISPOSITION x;
+	    ]])],
+		[tcl_cv_eh_disposition=yes],
+		[tcl_cv_eh_disposition=no])
+	)
+	if test "$tcl_cv_eh_disposition" = "no" ; then
+	AC_DEFINE(EXCEPTION_DISPOSITION, int,
+		[Defined when cygwin/mingw does not support EXCEPTION DISPOSITION])
+	fi
 
-    AC_SUBST(DL_LIBS)
+	# Check to see if winnt.h defines CHAR, SHORT, and LONG
+	# even if VOID has already been #defined. The win32api
+	# used by mingw and cygwin is known to do this.
+
+	AC_CACHE_CHECK(for winnt.h that ignores VOID define,
+	    tcl_cv_winnt_ignore_void,
+	    AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
+#define VOID void
+#define WIN32_LEAN_AND_MEAN
+#include <windows.h>
+#undef WIN32_LEAN_AND_MEAN
+	    ]], [[
+		CHAR c;
+		SHORT s;
+		LONG l;
+	    ]])],
+        [tcl_cv_winnt_ignore_void=yes],
+        [tcl_cv_winnt_ignore_void=no])
+	)
+	if test "$tcl_cv_winnt_ignore_void" = "yes" ; then
+	    AC_DEFINE(HAVE_WINNT_IGNORE_VOID, 1,
+		    [Defined when cygwin/mingw ignores VOID define in winnt.h])
+	fi
+    fi
+
+	# See if the compiler supports casting to a union type.
+	# This is used to stop gcc from printing a compiler
+	# warning when initializing a union member.
+
+	AC_CACHE_CHECK(for cast to union support,
+	    tcl_cv_cast_to_union,
+	    AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[
+		  union foo { int i; double d; };
+		  union foo f = (union foo) (int) 0;
+	    ]])],
+	    [tcl_cv_cast_to_union=yes],
+	    [tcl_cv_cast_to_union=no])
+	)
+	if test "$tcl_cv_cast_to_union" = "yes"; then
+	    AC_DEFINE(HAVE_CAST_TO_UNION, 1,
+		    [Defined when compiler supports casting to union type.])
+	fi
+
+	AC_CHECK_HEADER(stdbool.h, [AC_DEFINE(HAVE_STDBOOL_H, 1, [Do we have <stdbool.h>?])],)
 
     AC_SUBST(CFLAGS_DEBUG)
     AC_SUBST(CFLAGS_OPTIMIZE)
     AC_SUBST(CFLAGS_WARNING)
+    AC_SUBST(LDFLAGS_DEBUG)
+    AC_SUBST(LDFLAGS_OPTIMIZE)
 
     AC_SUBST(STLIB_LD)
     AC_SUBST(SHLIB_LD)
@@ -2336,13 +2099,12 @@
 #		USE_TERMIOS
 #		USE_TERMIO
 #		USE_SGTTY
-#
 #--------------------------------------------------------------------
 
 AC_DEFUN([TEA_SERIAL_PORT], [
     AC_CHECK_HEADERS(sys/modem.h)
     AC_CACHE_CHECK([termios vs. termio vs. sgtty], tcl_cv_api_serial, [
-    AC_TRY_RUN([
+    AC_RUN_IFELSE([AC_LANG_SOURCE([[
 #include <termios.h>
 
 int main() {
@@ -2353,9 +2115,9 @@
 	return 0;
     }
     return 1;
-}], tcl_cv_api_serial=termios, tcl_cv_api_serial=no, tcl_cv_api_serial=no)
+}]])],[tcl_cv_api_serial=termios],[tcl_cv_api_serial=no],[tcl_cv_api_serial=no])
     if test $tcl_cv_api_serial = no ; then
-	AC_TRY_RUN([
+	AC_RUN_IFELSE([AC_LANG_SOURCE([[
 #include <termio.h>
 
 int main() {
@@ -2365,10 +2127,10 @@
 	return 0;
     }
     return 1;
-}], tcl_cv_api_serial=termio, tcl_cv_api_serial=no, tcl_cv_api_serial=no)
+}]])],[tcl_cv_api_serial=termio],[tcl_cv_api_serial=no],[tcl_cv_api_serial=no])
     fi
     if test $tcl_cv_api_serial = no ; then
-	AC_TRY_RUN([
+	AC_RUN_IFELSE([AC_LANG_SOURCE([[
 #include <sgtty.h>
 
 int main() {
@@ -2379,10 +2141,10 @@
 	return 0;
     }
     return 1;
-}], tcl_cv_api_serial=sgtty, tcl_cv_api_serial=no, tcl_cv_api_serial=no)
+}]])],[tcl_cv_api_serial=sgtty],[tcl_cv_api_serial=no],[tcl_cv_api_serial=no])
     fi
     if test $tcl_cv_api_serial = no ; then
-	AC_TRY_RUN([
+	AC_RUN_IFELSE([AC_LANG_SOURCE([[
 #include <termios.h>
 #include <errno.h>
 
@@ -2395,10 +2157,10 @@
 	return 0;
     }
     return 1;
-}], tcl_cv_api_serial=termios, tcl_cv_api_serial=no, tcl_cv_api_serial=no)
+}]])],[tcl_cv_api_serial=termios],[tcl_cv_api_serial=no],[tcl_cv_api_serial=no])
     fi
     if test $tcl_cv_api_serial = no; then
-	AC_TRY_RUN([
+	AC_RUN_IFELSE([AC_LANG_SOURCE([[
 #include <termio.h>
 #include <errno.h>
 
@@ -2410,10 +2172,10 @@
 	return 0;
     }
     return 1;
-    }], tcl_cv_api_serial=termio, tcl_cv_api_serial=no, tcl_cv_api_serial=no)
+    }]])],[tcl_cv_api_serial=termio],[tcl_cv_api_serial=no],[tcl_cv_api_serial=no])
     fi
     if test $tcl_cv_api_serial = no; then
-	AC_TRY_RUN([
+	AC_RUN_IFELSE([AC_LANG_SOURCE([[
 #include <sgtty.h>
 #include <errno.h>
 
@@ -2426,7 +2188,7 @@
 	return 0;
     }
     return 1;
-}], tcl_cv_api_serial=sgtty, tcl_cv_api_serial=none, tcl_cv_api_serial=none)
+}]])],[tcl_cv_api_serial=sgtty],[tcl_cv_api_serial=none],[tcl_cv_api_serial=none])
     fi])
     case $tcl_cv_api_serial in
 	termios) AC_DEFINE(USE_TERMIOS, 1, [Use the termios API for serial lines]);;
@@ -2436,97 +2198,6 @@
 ])
 
 #--------------------------------------------------------------------
-# TEA_MISSING_POSIX_HEADERS
-#
-#	Supply substitutes for missing POSIX header files.  Special
-#	notes:
-#	    - stdlib.h doesn't define strtol, strtoul, or
-#	      strtod in some versions of SunOS
-#	    - some versions of string.h don't declare procedures such
-#	      as strstr
-#
-# Arguments:
-#	none
-#
-# Results:
-#
-#	Defines some of the following vars:
-#		NO_DIRENT_H
-#		NO_ERRNO_H
-#		NO_VALUES_H
-#		HAVE_LIMITS_H or NO_LIMITS_H
-#		NO_STDLIB_H
-#		NO_STRING_H
-#		NO_SYS_WAIT_H
-#		NO_DLFCN_H
-#		HAVE_SYS_PARAM_H
-#
-#		HAVE_STRING_H ?
-#
-# tkUnixPort.h checks for HAVE_LIMITS_H, so do both HAVE and
-# CHECK on limits.h
-#--------------------------------------------------------------------
-
-AC_DEFUN([TEA_MISSING_POSIX_HEADERS], [
-    AC_CACHE_CHECK([dirent.h], tcl_cv_dirent_h, [
-    AC_TRY_LINK([#include <sys/types.h>
-#include <dirent.h>], [
-#ifndef _POSIX_SOURCE
-#   ifdef __Lynx__
-	/*
-	 * Generate compilation error to make the test fail:  Lynx headers
-	 * are only valid if really in the POSIX environment.
-	 */
-
-	missing_procedure();
-#   endif
-#endif
-DIR *d;
-struct dirent *entryPtr;
-char *p;
-d = opendir("foobar");
-entryPtr = readdir(d);
-p = entryPtr->d_name;
-closedir(d);
-], tcl_cv_dirent_h=yes, tcl_cv_dirent_h=no)])
-
-    if test $tcl_cv_dirent_h = no; then
-	AC_DEFINE(NO_DIRENT_H, 1, [Do we have <dirent.h>?])
-    fi
-
-    # TEA specific:
-    AC_CHECK_HEADER(errno.h, , [AC_DEFINE(NO_ERRNO_H, 1, [Do we have <errno.h>?])])
-    AC_CHECK_HEADER(float.h, , [AC_DEFINE(NO_FLOAT_H, 1, [Do we have <float.h>?])])
-    AC_CHECK_HEADER(values.h, , [AC_DEFINE(NO_VALUES_H, 1, [Do we have <values.h>?])])
-    AC_CHECK_HEADER(limits.h,
-	[AC_DEFINE(HAVE_LIMITS_H, 1, [Do we have <limits.h>?])],
-	[AC_DEFINE(NO_LIMITS_H, 1, [Do we have <limits.h>?])])
-    AC_CHECK_HEADER(stdlib.h, tcl_ok=1, tcl_ok=0)
-    AC_EGREP_HEADER(strtol, stdlib.h, , tcl_ok=0)
-    AC_EGREP_HEADER(strtoul, stdlib.h, , tcl_ok=0)
-    AC_EGREP_HEADER(strtod, stdlib.h, , tcl_ok=0)
-    if test $tcl_ok = 0; then
-	AC_DEFINE(NO_STDLIB_H, 1, [Do we have <stdlib.h>?])
-    fi
-    AC_CHECK_HEADER(string.h, tcl_ok=1, tcl_ok=0)
-    AC_EGREP_HEADER(strstr, string.h, , tcl_ok=0)
-    AC_EGREP_HEADER(strerror, string.h, , tcl_ok=0)
-
-    # See also memmove check below for a place where NO_STRING_H can be
-    # set and why.
-
-    if test $tcl_ok = 0; then
-	AC_DEFINE(NO_STRING_H, 1, [Do we have <string.h>?])
-    fi
-
-    AC_CHECK_HEADER(sys/wait.h, , [AC_DEFINE(NO_SYS_WAIT_H, 1, [Do we have <sys/wait.h>?])])
-    AC_CHECK_HEADER(dlfcn.h, , [AC_DEFINE(NO_DLFCN_H, 1, [Do we have <dlfcn.h>?])])
-
-    # OS/390 lacks sys/param.h (and doesn't need it, by chance).
-    AC_HAVE_HEADERS(sys/param.h)
-])
-
-#--------------------------------------------------------------------
 # TEA_PATH_X
 #
 #	Locate the X11 header files and the X11 library archive.  Try
@@ -2548,7 +2219,6 @@
 #		XINCLUDES
 #		XLIBSW
 #		PKG_LIBS (appends to)
-#
 #--------------------------------------------------------------------
 
 AC_DEFUN([TEA_PATH_X], [
@@ -2562,9 +2232,9 @@
     not_really_there=""
     if test "$no_x" = ""; then
 	if test "$x_includes" = ""; then
-	    AC_TRY_CPP([#include <X11/XIntrinsic.h>], , not_really_there="yes")
+	    AC_PREPROC_IFELSE([AC_LANG_SOURCE([[#include <X11/Xlib.h>]])],[],[not_really_there="yes"])
 	else
-	    if test ! -r $x_includes/X11/Intrinsic.h; then
+	    if test ! -r $x_includes/X11/Xlib.h; then
 		not_really_there="yes"
 	    fi
 	fi
@@ -2572,11 +2242,11 @@
     if test "$no_x" = "yes" -o "$not_really_there" = "yes"; then
 	AC_MSG_CHECKING([for X11 header files])
 	found_xincludes="no"
-	AC_TRY_CPP([#include <X11/Intrinsic.h>], found_xincludes="yes", found_xincludes="no")
+	AC_PREPROC_IFELSE([AC_LANG_SOURCE([[#include <X11/Xlib.h>]])],[found_xincludes="yes"],[found_xincludes="no"])
 	if test "$found_xincludes" = "no"; then
 	    dirs="/usr/unsupported/include /usr/local/include /usr/X386/include /usr/X11R6/include /usr/X11R5/include /usr/include/X11R5 /usr/include/X11R4 /usr/openwin/include /usr/X11/include /usr/sww/include"
 	    for i in $dirs ; do
-		if test -r $i/X11/Intrinsic.h; then
+		if test -r $i/X11/Xlib.h; then
 		    AC_MSG_RESULT([$i])
 		    XINCLUDES=" -I$i"
 		    found_xincludes="yes"
@@ -2590,7 +2260,7 @@
 	    found_xincludes="yes"
 	fi
     fi
-    if test found_xincludes = "no"; then
+    if test "$found_xincludes" = "no"; then
 	AC_MSG_RESULT([couldn't find any!])
     fi
 
@@ -2644,7 +2314,6 @@
 #		HAVE_SYS_FILIO_H
 #		USE_FIONBIO
 #		O_NONBLOCK
-#
 #--------------------------------------------------------------------
 
 AC_DEFUN([TEA_BLOCKING_STYLE], [
@@ -2653,19 +2322,10 @@
     TEA_CONFIG_SYSTEM
     AC_MSG_CHECKING([FIONBIO vs. O_NONBLOCK for nonblocking I/O])
     case $system in
-	# There used to be code here to use FIONBIO under AIX.  However, it
-	# was reported that FIONBIO doesn't work under AIX 3.2.5.  Since
-	# using O_NONBLOCK seems fine under AIX 4.*, I removed the FIONBIO
-	# code (JO, 5/31/97).
-
 	OSF*)
 	    AC_DEFINE(USE_FIONBIO, 1, [Should we use FIONBIO?])
 	    AC_MSG_RESULT([FIONBIO])
 	    ;;
-	SunOS-4*)
-	    AC_DEFINE(USE_FIONBIO, 1, [Should we use FIONBIO?])
-	    AC_MSG_RESULT([FIONBIO])
-	    ;;
 	*)
 	    AC_MSG_RESULT([O_NONBLOCK])
 	    ;;
@@ -2696,18 +2356,20 @@
     AC_HEADER_TIME
     AC_STRUCT_TIMEZONE
 
-    AC_CHECK_FUNCS(gmtime_r localtime_r)
+    AC_CHECK_FUNCS(gmtime_r localtime_r mktime)
 
     AC_CACHE_CHECK([tm_tzadj in struct tm], tcl_cv_member_tm_tzadj, [
-	AC_TRY_COMPILE([#include <time.h>], [struct tm tm; tm.tm_tzadj;],
-	    tcl_cv_member_tm_tzadj=yes, tcl_cv_member_tm_tzadj=no)])
+	AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <time.h>]], [[struct tm tm; (void)tm.tm_tzadj;]])],
+	    [tcl_cv_member_tm_tzadj=yes],
+	    [tcl_cv_member_tm_tzadj=no])])
     if test $tcl_cv_member_tm_tzadj = yes ; then
 	AC_DEFINE(HAVE_TM_TZADJ, 1, [Should we use the tm_tzadj field of struct tm?])
     fi
 
     AC_CACHE_CHECK([tm_gmtoff in struct tm], tcl_cv_member_tm_gmtoff, [
-	AC_TRY_COMPILE([#include <time.h>], [struct tm tm; tm.tm_gmtoff;],
-	    tcl_cv_member_tm_gmtoff=yes, tcl_cv_member_tm_gmtoff=no)])
+	AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <time.h>]], [[struct tm tm; (void)tm.tm_gmtoff;]])],
+	    [tcl_cv_member_tm_gmtoff=yes],
+	    [tcl_cv_member_tm_gmtoff=no])])
     if test $tcl_cv_member_tm_gmtoff = yes ; then
 	AC_DEFINE(HAVE_TM_GMTOFF, 1, [Should we use the tm_gmtoff field of struct tm?])
     fi
@@ -2717,11 +2379,12 @@
     # (like convex) have timezone functions, etc.
     #
     AC_CACHE_CHECK([long timezone variable], tcl_cv_timezone_long, [
-	AC_TRY_COMPILE([#include <time.h>],
-	    [extern long timezone;
+	AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <time.h>
+#include <stdlib.h>]],
+	[[extern long timezone;
 	    timezone += 1;
-	    exit (0);],
-	    tcl_cv_timezone_long=yes, tcl_cv_timezone_long=no)])
+	    exit (0);]])],
+	    [tcl_cv_timezone_long=yes], [tcl_cv_timezone_long=no])])
     if test $tcl_cv_timezone_long = yes ; then
 	AC_DEFINE(HAVE_TIMEZONE_VAR, 1, [Should we use the global timezone variable?])
     else
@@ -2729,11 +2392,12 @@
 	# On some systems (eg IRIX 6.2), timezone is a time_t and not a long.
 	#
 	AC_CACHE_CHECK([time_t timezone variable], tcl_cv_timezone_time, [
-	    AC_TRY_COMPILE([#include <time.h>],
-		[extern time_t timezone;
+	    AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <time.h>
+#include <stdlib.h>]],
+	    [[extern time_t timezone;
 		timezone += 1;
-		exit (0);],
-		tcl_cv_timezone_time=yes, tcl_cv_timezone_time=no)])
+		exit (0);]])],
+		[tcl_cv_timezone_time=yes], [tcl_cv_timezone_time=no])])
 	if test $tcl_cv_timezone_time = yes ; then
 	    AC_DEFINE(HAVE_TIMEZONE_VAR, 1, [Should we use the global timezone variable?])
 	fi
@@ -2757,14 +2421,14 @@
 #
 #	Might defines some of the following vars:
 #		strtod (=fixstrtod)
-#
 #--------------------------------------------------------------------
 
 AC_DEFUN([TEA_BUGGY_STRTOD], [
     AC_CHECK_FUNC(strtod, tcl_strtod=1, tcl_strtod=0)
     if test "$tcl_strtod" = 1; then
 	AC_CACHE_CHECK([for Solaris2.4/Tru64 strtod bugs], tcl_cv_strtod_buggy,[
-	    AC_TRY_RUN([
+	    AC_RUN_IFELSE([AC_LANG_SOURCE([[
+		#include <stdlib.h>
 		extern double strtod();
 		int main() {
 		    char *infString="Inf", *nanString="NaN", *spaceString=" ";
@@ -2783,8 +2447,8 @@
 			exit(1);
 		    }
 		    exit(0);
-		}], tcl_cv_strtod_buggy=ok, tcl_cv_strtod_buggy=buggy,
-		    tcl_cv_strtod_buggy=buggy)])
+		}]])], [tcl_cv_strtod_buggy=ok], [tcl_cv_strtod_buggy=buggy],
+		    [tcl_cv_strtod_buggy=buggy])])
 	if test "$tcl_cv_strtod_buggy" = buggy; then
 	    AC_LIBOBJ([fixstrtod])
 	    USE_COMPAT=1
@@ -2797,23 +2461,17 @@
 # TEA_TCL_LINK_LIBS
 #
 #	Search for the libraries needed to link the Tcl shell.
-#	Things like the math library (-lm) and socket stuff (-lsocket vs.
-#	-lnsl) are dealt with here.
+#	Things like the math library (-lm), socket stuff (-lsocket vs.
+#	-lnsl), zlib (-lz) and libtommath (-ltommath) are dealt with here.
 #
 # Arguments:
-#	Requires the following vars to be set in the Makefile:
-#		DL_LIBS
-#		LIBS
-#		MATH_LIBS
+#	None.
 #
 # Results:
 #
-#	Subst's the following var:
-#		TCL_LIBS
-#		MATH_LIBS
-#
 #	Might append to the following vars:
 #		LIBS
+#		MATH_LIBS
 #
 #	Might define the following vars:
 #		HAVE_NET_ERRNO_H
@@ -2824,12 +2482,9 @@
     #--------------------------------------------------------------------
     # On a few very rare systems, all of the libm.a stuff is
     # already in libc.a.  Set compiler flags accordingly.
-    # Also, Linux requires the "ieee" library for math to work
-    # right (and it must appear before "-lm").
     #--------------------------------------------------------------------
 
     AC_CHECK_FUNC(sin, MATH_LIBS="", MATH_LIBS="-lm")
-    AC_CHECK_LIB(ieee, main, [MATH_LIBS="-lieee $MATH_LIBS"])
 
     #--------------------------------------------------------------------
     # Interactive UNIX requires -linet instead of -lsocket, plus it
@@ -2871,13 +2526,10 @@
     fi
     AC_CHECK_FUNC(gethostbyname, , [AC_CHECK_LIB(nsl, gethostbyname,
 	    [LIBS="$LIBS -lnsl"])])
-
-    # TEA specific: Don't perform the eval of the libraries here because
-    # DL_LIBS won't be set until we call TEA_CONFIG_CFLAGS
-
-    TCL_LIBS='${DL_LIBS} ${LIBS} ${MATH_LIBS}'
-    AC_SUBST(TCL_LIBS)
-    AC_SUBST(MATH_LIBS)
+    AC_CHECK_FUNC(mp_log_u32, , [AC_CHECK_LIB(tommath, mp_log_u32,
+	    [LIBS="$LIBS -ltommath"])])
+    AC_CHECK_FUNC(deflateSetHeader, , [AC_CHECK_LIB(z, deflateSetHeader,
+	    [LIBS="$LIBS -lz"])])
 ])
 
 #--------------------------------------------------------------------
@@ -2893,20 +2545,19 @@
 #
 #	Might define the following vars:
 #		_ISOC99_SOURCE
-#		_LARGEFILE64_SOURCE
-#		_LARGEFILE_SOURCE64
+#		_FILE_OFFSET_BITS
 #
 #--------------------------------------------------------------------
 
 AC_DEFUN([TEA_TCL_EARLY_FLAG],[
     AC_CACHE_VAL([tcl_cv_flag_]translit($1,[A-Z],[a-z]),
-	AC_TRY_COMPILE([$2], $3, [tcl_cv_flag_]translit($1,[A-Z],[a-z])=no,
-	    AC_TRY_COMPILE([[#define ]$1[ 1
-]$2], $3,
-		[tcl_cv_flag_]translit($1,[A-Z],[a-z])=yes,
-		[tcl_cv_flag_]translit($1,[A-Z],[a-z])=no)))
+	AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[$2]], [[$3]])],
+	    [tcl_cv_flag_]translit($1,[A-Z],[a-z])=no,[AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[[#define ]$1[ ]m4_default([$4],[1])[
+]$2]], [[$3]])],
+	[tcl_cv_flag_]translit($1,[A-Z],[a-z])=yes,
+	[tcl_cv_flag_]translit($1,[A-Z],[a-z])=no)]))
     if test ["x${tcl_cv_flag_]translit($1,[A-Z],[a-z])[}" = "xyes"] ; then
-	AC_DEFINE($1, 1, [Add the ]$1[ flag when building])
+	AC_DEFINE($1, m4_default([$4],[1]), [Add the ]$1[ flag when building])
 	tcl_flags="$tcl_flags $1"
     fi
 ])
@@ -2916,10 +2567,10 @@
     tcl_flags=""
     TEA_TCL_EARLY_FLAG(_ISOC99_SOURCE,[#include <stdlib.h>],
 	[char *p = (char *)strtoll; char *q = (char *)strtoull;])
-    TEA_TCL_EARLY_FLAG(_LARGEFILE64_SOURCE,[#include <sys/stat.h>],
-	[struct stat64 buf; int i = stat64("/", &buf);])
-    TEA_TCL_EARLY_FLAG(_LARGEFILE_SOURCE64,[#include <sys/stat.h>],
-	[char *p = (char *)open64;])
+    if test "${TCL_MAJOR_VERSION}" -ne 8 ; then
+	TEA_TCL_EARLY_FLAG(_FILE_OFFSET_BITS,[#include <sys/stat.h>],
+	    [switch (0) { case 0: case (sizeof(off_t)==sizeof(long long)): ; }],64)
+    fi
     if test "x${tcl_flags}" = "x" ; then
 	AC_MSG_RESULT([none])
     else
@@ -2940,9 +2591,10 @@
 #	Might define the following vars:
 #		TCL_WIDE_INT_IS_LONG
 #		TCL_WIDE_INT_TYPE
-#		HAVE_STRUCT_DIRENT64
+#		HAVE_STRUCT_DIRENT64, HAVE_DIR64
 #		HAVE_STRUCT_STAT64
 #		HAVE_TYPE_OFF64_T
+#		_TIME_BITS
 #
 #--------------------------------------------------------------------
 
@@ -2951,17 +2603,17 @@
     AC_CACHE_VAL(tcl_cv_type_64bit,[
 	tcl_cv_type_64bit=none
 	# See if the compiler knows natively about __int64
-	AC_TRY_COMPILE(,[__int64 value = (__int64) 0;],
-	    tcl_type_64bit=__int64, tcl_type_64bit="long long")
-	# See if we should use long anyway  Note that we substitute in the
+	AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[__int64 value = (__int64) 0;]])],
+	    [tcl_type_64bit=__int64],[tcl_type_64bit="long long"])
+	# See if we could use long anyway  Note that we substitute in the
 	# type that is our current guess for a 64-bit type inside this check
 	# program, so it should be modified only carefully...
-        AC_TRY_COMPILE(,[switch (0) {
-            case 1: case (sizeof(]${tcl_type_64bit}[)==sizeof(long)): ;
-        }],tcl_cv_type_64bit=${tcl_type_64bit})])
+        AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[switch (0) {
+            case 1: case (sizeof(${tcl_type_64bit})==sizeof(long)): ;
+        }]])],[tcl_cv_type_64bit=${tcl_type_64bit}],[])])
     if test "${tcl_cv_type_64bit}" = none ; then
-	AC_DEFINE(TCL_WIDE_INT_IS_LONG, 1, [Are wide integers to be implemented with C 'long's?])
-	AC_MSG_RESULT([using long])
+	AC_DEFINE(TCL_WIDE_INT_IS_LONG, 1, [Do 'long' and 'long long' have the same size (64-bit)?])
+	AC_MSG_RESULT([yes])
     elif test "${tcl_cv_type_64bit}" = "__int64" \
 		-a "${TEA_PLATFORM}" = "windows" ; then
 	# TEA specific: We actually want to use the default tcl.h checks in
@@ -2973,18 +2625,46 @@
 	AC_MSG_RESULT([${tcl_cv_type_64bit}])
 
 	# Now check for auxiliary declarations
+    if test "${TCL_MAJOR_VERSION}" -ne 8 ; then
+	    AC_CACHE_CHECK([for 64-bit time_t], tcl_cv_time_t_64,[
+		AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>]],
+		    [[switch (0) {case 0: case (sizeof(time_t)==sizeof(long long)): ;}]])],
+		    [tcl_cv_time_t_64=yes],[tcl_cv_time_t_64=no])])
+	    if test "x${tcl_cv_time_t_64}" = "xno" ; then
+		# Note that _TIME_BITS=64 requires _FILE_OFFSET_BITS=64
+		# which SC_TCL_EARLY_FLAGS has defined if necessary.
+		AC_CACHE_CHECK([if _TIME_BITS=64 enables 64-bit time_t], tcl_cv__time_bits,[
+		    AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#define _TIME_BITS 64
+#include <sys/types.h>]],
+			[[switch (0) {case 0: case (sizeof(time_t)==sizeof(long long)): ;}]])],
+			[tcl_cv__time_bits=yes],[tcl_cv__time_bits=no])])
+		if test "x${tcl_cv__time_bits}" = "xyes" ; then
+		    AC_DEFINE(_TIME_BITS, 64, [_TIME_BITS=64 enables 64-bit time_t.])
+		fi
+	    fi
+	fi
+
 	AC_CACHE_CHECK([for struct dirent64], tcl_cv_struct_dirent64,[
-	    AC_TRY_COMPILE([#include <sys/types.h>
-#include <sys/dirent.h>],[struct dirent64 p;],
-		tcl_cv_struct_dirent64=yes,tcl_cv_struct_dirent64=no)])
+	    AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
+#include <dirent.h>]], [[struct dirent64 p;]])],
+		[tcl_cv_struct_dirent64=yes],[tcl_cv_struct_dirent64=no])])
 	if test "x${tcl_cv_struct_dirent64}" = "xyes" ; then
 	    AC_DEFINE(HAVE_STRUCT_DIRENT64, 1, [Is 'struct dirent64' in <sys/types.h>?])
 	fi
 
+	AC_CACHE_CHECK([for DIR64], tcl_cv_DIR64,[
+	    AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>
+#include <dirent.h>]], [[struct dirent64 *p; DIR64 d = opendir64(".");
+            p = readdir64(d); rewinddir64(d); closedir64(d);]])],
+		[tcl_cv_DIR64=yes], [tcl_cv_DIR64=no])])
+	if test "x${tcl_cv_DIR64}" = "xyes" ; then
+	    AC_DEFINE(HAVE_DIR64, 1, [Is 'DIR64' in <sys/types.h>?])
+	fi
+
 	AC_CACHE_CHECK([for struct stat64], tcl_cv_struct_stat64,[
-	    AC_TRY_COMPILE([#include <sys/stat.h>],[struct stat64 p;
-],
-		tcl_cv_struct_stat64=yes,tcl_cv_struct_stat64=no)])
+	    AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/stat.h>]], [[struct stat64 p;
+]])],
+		[tcl_cv_struct_stat64=yes], [tcl_cv_struct_stat64=no])])
 	if test "x${tcl_cv_struct_stat64}" = "xyes" ; then
 	    AC_DEFINE(HAVE_STRUCT_STAT64, 1, [Is 'struct stat64' in <sys/stat.h>?])
 	fi
@@ -2992,9 +2672,9 @@
 	AC_CHECK_FUNCS(open64 lseek64)
 	AC_MSG_CHECKING([for off64_t])
 	AC_CACHE_VAL(tcl_cv_type_off64_t,[
-	    AC_TRY_COMPILE([#include <sys/types.h>],[off64_t offset;
-],
-		tcl_cv_type_off64_t=yes,tcl_cv_type_off64_t=no)])
+	    AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/types.h>]], [[off64_t offset;
+]])],
+		[tcl_cv_type_off64_t=yes], [tcl_cv_type_off64_t=no])])
 	dnl Define HAVE_TYPE_OFF64_T only when the off64_t type and the
 	dnl functions lseek64 and open64 are defined.
 	if test "x${tcl_cv_type_off64_t}" = "xyes" && \
@@ -3043,38 +2723,44 @@
 #------------------------------------------------------------------------
 
 AC_DEFUN([TEA_INIT], [
-    # TEA extensions pass this us the version of TEA they think they
-    # are compatible with.
-    TEA_VERSION="3.7"
+    TEA_VERSION="3.13"
 
-    AC_MSG_CHECKING([for correct TEA configuration])
+    AC_MSG_CHECKING([TEA configuration])
     if test x"${PACKAGE_NAME}" = x ; then
 	AC_MSG_ERROR([
-The PACKAGE_NAME variable must be defined by your TEA configure.in])
+The PACKAGE_NAME variable must be defined by your TEA configure.ac])
     fi
-    if test x"$1" = x ; then
-	AC_MSG_ERROR([
-TEA version not specified.])
-    elif test "$1" != "${TEA_VERSION}" ; then
-	AC_MSG_RESULT([warning: requested TEA version "$1", have "${TEA_VERSION}"])
-    else
-	AC_MSG_RESULT([ok (TEA ${TEA_VERSION})])
+    AC_MSG_RESULT([ok (TEA ${TEA_VERSION})])
+
+    # If the user did not set CFLAGS, set it now to keep macros
+    # like AC_PROG_CC and AC_TRY_COMPILE from adding "-g -O2".
+    if test "${CFLAGS+set}" != "set" ; then
+	CFLAGS=""
     fi
+
     case "`uname -s`" in
-	*win32*|*WIN32*|*MINGW32_*)
-	    AC_CHECK_PROG(CYGPATH, cygpath, cygpath -w, echo)
+	*win32*|*WIN32*|*MINGW32_*|*MINGW64_*|*MSYS_*)
+	    AC_CHECK_PROG(CYGPATH, cygpath, cygpath -m, echo)
 	    EXEEXT=".exe"
 	    TEA_PLATFORM="windows"
 	    ;;
 	*CYGWIN_*)
-	    CYGPATH=echo
 	    EXEEXT=".exe"
-	    # TEA_PLATFORM is determined later
+	    # CYGPATH and TEA_PLATFORM are determined later in LOAD_TCLCONFIG
 	    ;;
 	*)
 	    CYGPATH=echo
-	    EXEEXT=""
-	    TEA_PLATFORM="unix"
+	    # Maybe we are cross-compiling....
+	    case ${host_alias} in
+		*mingw32*)
+		EXEEXT=".exe"
+		TEA_PLATFORM="windows"
+		;;
+	    *)
+		EXEEXT=""
+		TEA_PLATFORM="unix"
+		;;
+	    esac
 	    ;;
     esac
 
@@ -3087,13 +2773,15 @@
 	exec_prefix=$prefix
     fi
 
+    AC_MSG_NOTICE([configuring ${PACKAGE_NAME} ${PACKAGE_VERSION}])
+
     AC_SUBST(EXEEXT)
     AC_SUBST(CYGPATH)
 
     # This package name must be replaced statically for AC_SUBST to work
     AC_SUBST(PKG_LIB_FILE)
-    # Substitute STUB_LIB_FILE in case package creates a stub library too.
-    AC_SUBST(PKG_STUB_LIB_FILE)
+    AC_SUBST(PKG_LIB_FILE8)
+    AC_SUBST(PKG_LIB_FILE9)
 
     # We AC_SUBST these here to ensure they are subst'ed,
     # in case the user doesn't call TEA_ADD_...
@@ -3104,6 +2792,9 @@
     AC_SUBST(PKG_INCLUDES)
     AC_SUBST(PKG_LIBS)
     AC_SUBST(PKG_CFLAGS)
+
+    # Configure the installer.
+    TEA_INSTALLER
 ])
 
 #------------------------------------------------------------------------
@@ -3138,6 +2829,7 @@
 		# in Makefile.in as well
 		if test ! -f "${srcdir}/$i" -a ! -f "${srcdir}/generic/$i" \
 		    -a ! -f "${srcdir}/win/$i" -a ! -f "${srcdir}/unix/$i" \
+		    -a ! -f "${srcdir}/macosx/$i" \
 		    ; then
 		    AC_MSG_ERROR([could not find source file '$i'])
 		fi
@@ -3181,6 +2873,7 @@
 	# check for existence - allows for generic/win/unix VPATH
 	if test ! -f "${srcdir}/$i" -a ! -f "${srcdir}/generic/$i" \
 	    -a ! -f "${srcdir}/win/$i" -a ! -f "${srcdir}/unix/$i" \
+	    -a ! -f "${srcdir}/macosx/$i" \
 	    ; then
 	    AC_MSG_ERROR([could not find stub source file '$i'])
 	fi
@@ -3294,7 +2987,7 @@
     for i in $vars; do
 	if test "${TEA_PLATFORM}" = "windows" -a "$GCC" = "yes" ; then
 	    # Convert foo.lib to -lfoo for GCC.  No-op if not *.lib
-	    i=`echo "$i" | sed -e 's/^\([[^-]].*\)\.lib[$]/-l\1/i'`
+	    i=`echo "$i" | sed -e 's/^\([[^-]].*\)\.[[lL]][[iI]][[bB]][$]/-l\1/'`
 	fi
 	PKG_LIBS="$PKG_LIBS $i"
     done
@@ -3321,6 +3014,22 @@
 ])
 
 #------------------------------------------------------------------------
+# TEA_ADD_CLEANFILES --
+#
+#	Specify one or more CLEANFILES.
+#
+# Arguments:
+#	one or more file names to clean target
+#
+# Results:
+#
+#	Appends to CLEANFILES, already defined for subst in LOAD_TCLCONFIG
+#------------------------------------------------------------------------
+AC_DEFUN([TEA_ADD_CLEANFILES], [
+    CLEANFILES="$CLEANFILES $@"
+])
+
+#------------------------------------------------------------------------
 # TEA_PREFIX --
 #
 #	Handle the --prefix=... option by defaulting to what Tcl gave
@@ -3361,7 +3070,7 @@
 # TEA_SETUP_COMPILER_CC --
 #
 #	Do compiler checks the way we want.  This is just a replacement
-#	for AC_PROG_CC in TEA configure.in files to make them cleaner.
+#	for AC_PROG_CC in TEA configure.ac files to make them cleaner.
 #
 # Arguments:
 #	none
@@ -3374,17 +3083,9 @@
     # Don't put any macros that use the compiler (e.g. AC_TRY_COMPILE)
     # in this macro, they need to go into TEA_SETUP_COMPILER instead.
 
-    # If the user did not set CFLAGS, set it now to keep
-    # the AC_PROG_CC macro from adding "-g -O2".
-    if test "${CFLAGS+set}" != "set" ; then
-	CFLAGS=""
-    fi
-
     AC_PROG_CC
     AC_PROG_CPP
 
-    AC_PROG_INSTALL
-
     #--------------------------------------------------------------------
     # Checks to see if the make program sets the $MAKE variable.
     #--------------------------------------------------------------------
@@ -3395,7 +3096,7 @@
     # Find ranlib
     #--------------------------------------------------------------------
 
-    AC_PROG_RANLIB
+    AC_CHECK_TOOL(RANLIB, ranlib)
 
     #--------------------------------------------------------------------
     # Determines the correct binary file extension (.o, .obj, .exe etc.)
@@ -3431,26 +3132,22 @@
 	AC_CACHE_CHECK([if the compiler understands -pipe],
 	    tcl_cv_cc_pipe, [
 	    hold_cflags=$CFLAGS; CFLAGS="$CFLAGS -pipe"
-	    AC_TRY_COMPILE(,, tcl_cv_cc_pipe=yes, tcl_cv_cc_pipe=no)
+	    AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],[tcl_cv_cc_pipe=yes],[tcl_cv_cc_pipe=no])
 	    CFLAGS=$hold_cflags])
 	if test $tcl_cv_cc_pipe = yes; then
 	    CFLAGS="$CFLAGS -pipe"
 	fi
     fi
 
+    if test "${TCL_MAJOR_VERSION}" -lt 9 -a "${TCL_MINOR_VERSION}" -lt 7; then
+	    AC_DEFINE(Tcl_Size, int, [Is 'Tcl_Size' in <tcl.h>?])
+	fi
+
     #--------------------------------------------------------------------
     # Common compiler flag setup
     #--------------------------------------------------------------------
 
-    AC_C_BIGENDIAN
-    if test "${TEA_PLATFORM}" = "unix" ; then
-	TEA_TCL_LINK_LIBS
-	TEA_MISSING_POSIX_HEADERS
-	# Let the user call this, because if it triggers, they will
-	# need a compat/strtod.c that is correct.  Users can also
-	# use Tcl_GetDouble(FromObj) instead.
-	#TEA_BUGGY_STRTOD
-    fi
+    AC_C_BIGENDIAN(,,,[#])
 ])
 
 #------------------------------------------------------------------------
@@ -3474,16 +3171,29 @@
 #	MAKE_SHARED_LIB	Makefile rule for building a shared library
 #	MAKE_STATIC_LIB	Makefile rule for building a static library
 #	MAKE_STUB_LIB	Makefile rule for building a stub library
+#	VC_MANIFEST_EMBED_DLL Makefile rule for embedded VC manifest in DLL
+#	VC_MANIFEST_EMBED_EXE Makefile rule for embedded VC manifest in EXE
 #------------------------------------------------------------------------
 
 AC_DEFUN([TEA_MAKE_LIB], [
     if test "${TEA_PLATFORM}" = "windows" -a "$GCC" != "yes"; then
 	MAKE_STATIC_LIB="\${STLIB_LD} -out:\[$]@ \$(PKG_OBJECTS)"
-	MAKE_SHARED_LIB="\${SHLIB_LD} \${SHLIB_LD_LIBS} \${LDFLAGS_DEFAULT} -out:\[$]@ \$(PKG_OBJECTS)"
-	MAKE_STUB_LIB="\${STLIB_LD} -out:\[$]@ \$(PKG_STUB_OBJECTS)"
+	MAKE_SHARED_LIB="\${SHLIB_LD} \${LDFLAGS} \${LDFLAGS_DEFAULT} -out:\[$]@ \$(PKG_OBJECTS) \${SHLIB_LD_LIBS}"
+	AC_EGREP_CPP([manifest needed], [
+#if defined(_MSC_VER) && _MSC_VER >= 1400
+print("manifest needed")
+#endif
+	], [
+	# Could do a CHECK_PROG for mt, but should always be with MSVC8+
+	VC_MANIFEST_EMBED_DLL="if test -f \[$]@.manifest ; then mt.exe -nologo -manifest \[$]@.manifest -outputresource:\[$]@\;2 ; fi"
+	VC_MANIFEST_EMBED_EXE="if test -f \[$]@.manifest ; then mt.exe -nologo -manifest \[$]@.manifest -outputresource:\[$]@\;1 ; fi"
+	MAKE_SHARED_LIB="${MAKE_SHARED_LIB} ; ${VC_MANIFEST_EMBED_DLL}"
+	TEA_ADD_CLEANFILES([*.manifest])
+	])
+	MAKE_STUB_LIB="\${STLIB_LD} -nodefaultlib -out:\[$]@ \$(PKG_STUB_OBJECTS)"
     else
 	MAKE_STATIC_LIB="\${STLIB_LD} \[$]@ \$(PKG_OBJECTS)"
-	MAKE_SHARED_LIB="\${SHLIB_LD} -o \[$]@ \$(PKG_OBJECTS) \${SHLIB_LD_LIBS}"
+	MAKE_SHARED_LIB="\${SHLIB_LD} \${LDFLAGS} \${LDFLAGS_DEFAULT} -o \[$]@ \$(PKG_OBJECTS) \${SHLIB_LD_LIBS}"
 	MAKE_STUB_LIB="\${STLIB_LD} \[$]@ \$(PKG_STUB_OBJECTS)"
     fi
 
@@ -3499,20 +3209,42 @@
     # substituted. (@@@ Might not be necessary anymore)
     #--------------------------------------------------------------------
 
+    PACKAGE_LIB_PREFIX8="${PACKAGE_LIB_PREFIX}"
+    PACKAGE_LIB_PREFIX9="${PACKAGE_LIB_PREFIX}tcl9"
+    if test "${TCL_MAJOR_VERSION}" -gt 8 -a x"${with_tcl8}" == x; then
+	PACKAGE_LIB_PREFIX="${PACKAGE_LIB_PREFIX9}"
+    else
+	PACKAGE_LIB_PREFIX="${PACKAGE_LIB_PREFIX8}"
+	AC_DEFINE(TCL_MAJOR_VERSION, 8, [Compile for Tcl8?])
+    fi
     if test "${TEA_PLATFORM}" = "windows" ; then
 	if test "${SHARED_BUILD}" = "1" ; then
 	    # We force the unresolved linking of symbols that are really in
 	    # the private libraries of Tcl and Tk.
-	    SHLIB_LD_LIBS="${SHLIB_LD_LIBS} \"`${CYGPATH} ${TCL_BIN_DIR}/${TCL_STUB_LIB_FILE}`\""
 	    if test x"${TK_BIN_DIR}" != x ; then
 		SHLIB_LD_LIBS="${SHLIB_LD_LIBS} \"`${CYGPATH} ${TK_BIN_DIR}/${TK_STUB_LIB_FILE}`\""
 	    fi
-	    eval eval "PKG_LIB_FILE=${PACKAGE_NAME}${SHARED_LIB_SUFFIX}"
+	    SHLIB_LD_LIBS="${SHLIB_LD_LIBS} \"`${CYGPATH} ${TCL_BIN_DIR}/${TCL_STUB_LIB_FILE}`\""
+	    if test "$GCC" = "yes"; then
+		SHLIB_LD_LIBS="${SHLIB_LD_LIBS} -static-libgcc"
+	    fi
+	    eval eval "PKG_LIB_FILE8=${PACKAGE_LIB_PREFIX8}${PACKAGE_NAME}${SHARED_LIB_SUFFIX}"
+	    eval eval "PKG_LIB_FILE9=${PACKAGE_LIB_PREFIX9}${PACKAGE_NAME}${SHARED_LIB_SUFFIX}"
+	    eval eval "PKG_LIB_FILE=${PACKAGE_LIB_PREFIX}${PACKAGE_NAME}${SHARED_LIB_SUFFIX}"
 	else
-	    eval eval "PKG_LIB_FILE=${PACKAGE_NAME}${UNSHARED_LIB_SUFFIX}"
+	    if test "$GCC" = "yes"; then
+		PACKAGE_LIB_PREFIX=lib${PACKAGE_LIB_PREFIX}
+	    fi
+	    eval eval "PKG_LIB_FILE8=${PACKAGE_LIB_PREFIX8}${PACKAGE_NAME}${UNSHARED_LIB_SUFFIX}"
+	    eval eval "PKG_LIB_FILE9=${PACKAGE_LIB_PREFIX9}${PACKAGE_NAME}${UNSHARED_LIB_SUFFIX}"
+	    eval eval "PKG_LIB_FILE=${PACKAGE_LIB_PREFIX}${PACKAGE_NAME}${UNSHARED_LIB_SUFFIX}"
 	fi
 	# Some packages build their own stubs libraries
-	eval eval "PKG_STUB_LIB_FILE=${PACKAGE_NAME}stub${UNSHARED_LIB_SUFFIX}"
+	if test "${TCL_MAJOR_VERSION}" -gt 8 -a x"${with_tcl8}" == x; then
+	    eval eval "PKG_STUB_LIB_FILE=${PACKAGE_LIB_PREFIX8}${PACKAGE_NAME}stub.a"
+	else
+	    eval eval "PKG_STUB_LIB_FILE=${PACKAGE_LIB_PREFIX8}${PACKAGE_NAME}stub${UNSHARED_LIB_SUFFIX}"
+	fi
 	if test "$GCC" = "yes"; then
 	    PKG_STUB_LIB_FILE=lib${PKG_STUB_LIB_FILE}
 	fi
@@ -3526,13 +3258,21 @@
 	    if test x"${TK_BIN_DIR}" != x ; then
 		SHLIB_LD_LIBS="${SHLIB_LD_LIBS} ${TK_STUB_LIB_SPEC}"
 	    fi
-	    eval eval "PKG_LIB_FILE=lib${PACKAGE_NAME}${SHARED_LIB_SUFFIX}"
+	    eval eval "PKG_LIB_FILE8=lib${PACKAGE_LIB_PREFIX8}${PACKAGE_NAME}${SHARED_LIB_SUFFIX}"
+	    eval eval "PKG_LIB_FILE9=lib${PACKAGE_LIB_PREFIX9}${PACKAGE_NAME}${SHARED_LIB_SUFFIX}"
+	    eval eval "PKG_LIB_FILE=lib${PACKAGE_LIB_PREFIX}${PACKAGE_NAME}${SHARED_LIB_SUFFIX}"
 	    RANLIB=:
 	else
-	    eval eval "PKG_LIB_FILE=lib${PACKAGE_NAME}${UNSHARED_LIB_SUFFIX}"
+	    eval eval "PKG_LIB_FILE8=lib${PACKAGE_LIB_PREFIX8}${PACKAGE_NAME}${UNSHARED_LIB_SUFFIX}"
+	    eval eval "PKG_LIB_FILE9=lib${PACKAGE_LIB_PREFIX9}${PACKAGE_NAME}${UNSHARED_LIB_SUFFIX}"
+	    eval eval "PKG_LIB_FILE=lib${PACKAGE_LIB_PREFIX}${PACKAGE_NAME}${UNSHARED_LIB_SUFFIX}"
 	fi
 	# Some packages build their own stubs libraries
-	eval eval "PKG_STUB_LIB_FILE=lib${PACKAGE_NAME}stub${UNSHARED_LIB_SUFFIX}"
+	if test "${TCL_MAJOR_VERSION}" -gt 8 -a x"${with_tcl8}" == x; then
+	    eval eval "PKG_STUB_LIB_FILE=lib${PACKAGE_LIB_PREFIX8}${PACKAGE_NAME}stub.a"
+	else
+	    eval eval "PKG_STUB_LIB_FILE=lib${PACKAGE_LIB_PREFIX8}${PACKAGE_NAME}stub${UNSHARED_LIB_SUFFIX}"
+	fi
     fi
 
     # These are escaped so that only CFLAGS is picked up at configure time.
@@ -3546,7 +3286,11 @@
     AC_SUBST(MAKE_SHARED_LIB)
     AC_SUBST(MAKE_STATIC_LIB)
     AC_SUBST(MAKE_STUB_LIB)
+    # Substitute STUB_LIB_FILE in case package creates a stub library too.
+    AC_SUBST(PKG_STUB_LIB_FILE)
     AC_SUBST(RANLIB_STUB)
+    AC_SUBST(VC_MANIFEST_EMBED_DLL)
+    AC_SUBST(VC_MANIFEST_EMBED_EXE)
 ])
 
 #------------------------------------------------------------------------
@@ -3594,6 +3338,8 @@
 	    `ls -dr ${tea_lib_name_dir}/lib$1[[0-9]]* 2>/dev/null ` \
 	    `ls -dr /usr/lib/$1[[0-9]]*.lib 2>/dev/null ` \
 	    `ls -dr /usr/lib/lib$1[[0-9]]* 2>/dev/null ` \
+	    `ls -dr /usr/lib64/$1[[0-9]]*.lib 2>/dev/null ` \
+	    `ls -dr /usr/lib64/lib$1[[0-9]]* 2>/dev/null ` \
 	    `ls -dr /usr/local/lib/$1[[0-9]]*.lib 2>/dev/null ` \
 	    `ls -dr /usr/local/lib/lib$1[[0-9]]* 2>/dev/null ` ; do
 	if test -f "$i" ; then
@@ -3633,7 +3379,7 @@
 #
 # Results:
 #
-#	Substs the following vars:
+#	Substitutes the following vars:
 #		TCL_TOP_DIR_NATIVE
 #		TCL_INCLUDES
 #------------------------------------------------------------------------
@@ -3711,7 +3457,7 @@
 #	Adds a --with-tclinclude switch to configure.
 #	Result is cached.
 #
-#	Substs the following vars:
+#	Substitutes the following vars:
 #		TCL_INCLUDES
 #------------------------------------------------------------------------
 
@@ -3801,7 +3547,7 @@
 #
 # Results:
 #
-#	Substs the following vars:
+#	Substitutes the following vars:
 #		TK_INCLUDES
 #------------------------------------------------------------------------
 
@@ -3890,7 +3636,7 @@
 #	Adds a --with-tkinclude switch to configure.
 #	Result is cached.
 #
-#	Substs the following vars:
+#	Substitutes the following vars:
 #		TK_INCLUDES
 #------------------------------------------------------------------------
 
@@ -4073,7 +3819,9 @@
 			`ls -d ${prefix}/lib 2>/dev/null` \
 			`ls -d /usr/local/lib 2>/dev/null` \
 			`ls -d /usr/contrib/lib 2>/dev/null` \
+			`ls -d /usr/pkg/lib 2>/dev/null` \
 			`ls -d /usr/lib 2>/dev/null` \
+			`ls -d /usr/lib64 2>/dev/null` \
 			; do
 		    if test -f "$i/$1Config.sh" ; then
 			ac_cv_c_$1config=`(cd $i; pwd)`
@@ -4107,11 +3855,10 @@
 #
 # Results:
 #
-#	Subst the following vars:
+#	Substitutes the following vars:
 #		$1_SRC_DIR
 #		$1_LIB_FILE
 #		$1_LIB_SPEC
-#
 #------------------------------------------------------------------------
 
 AC_DEFUN([TEA_LOAD_CONFIG], [
@@ -4138,6 +3885,8 @@
         $1_LIB_SPEC=${$1_BUILD_LIB_SPEC}
         $1_STUB_LIB_SPEC=${$1_BUILD_STUB_LIB_SPEC}
         $1_STUB_LIB_PATH=${$1_BUILD_STUB_LIB_PATH}
+        $1_INCLUDE_SPEC=${$1_BUILD_INCLUDE_SPEC}
+        $1_LIBRARY_PATH=${$1_LIBRARY_PATH}
     fi
 
     AC_SUBST($1_VERSION)
@@ -4150,75 +3899,220 @@
     AC_SUBST($1_STUB_LIB_FILE)
     AC_SUBST($1_STUB_LIB_SPEC)
     AC_SUBST($1_STUB_LIB_PATH)
+
+    # Allow the caller to prevent this auto-check by specifying any 2nd arg
+    AS_IF([test "x$2" = x], [
+	# Check both upper and lower-case variants
+	# If a dev wanted non-stubs libs, this function could take an option
+	# to not use _STUB in the paths below
+	AS_IF([test "x${$1_STUB_LIB_SPEC}" = x],
+	    [TEA_LOAD_CONFIG_LIB(translit($1,[a-z],[A-Z])_STUB)],
+	    [TEA_LOAD_CONFIG_LIB($1_STUB)])
+    ])
+])
+
+#------------------------------------------------------------------------
+# TEA_LOAD_CONFIG_LIB --
+#
+#	Helper function to load correct library from another extension's
+#	${PACKAGE}Config.sh.
+#
+# Results:
+#	Adds to LIBS the appropriate extension library
+#------------------------------------------------------------------------
+AC_DEFUN([TEA_LOAD_CONFIG_LIB], [
+    AC_MSG_CHECKING([For $1 library for LIBS])
+    # This simplifies the use of stub libraries by automatically adding
+    # the stub lib to your path.  Normally this would add to SHLIB_LD_LIBS,
+    # but this is called before CONFIG_CFLAGS.  More importantly, this adds
+    # to PKG_LIBS, which becomes LIBS, and that is only used by SHLIB_LD.
+    if test "x${$1_LIB_SPEC}" != "x" ; then
+	if test "${TEA_PLATFORM}" = "windows" -a "$GCC" != "yes" ; then
+	    TEA_ADD_LIBS([\"`${CYGPATH} ${$1_LIB_PATH}`\"])
+	    AC_MSG_RESULT([using $1_LIB_PATH ${$1_LIB_PATH}])
+	else
+	    TEA_ADD_LIBS([${$1_LIB_SPEC}])
+	    AC_MSG_RESULT([using $1_LIB_SPEC ${$1_LIB_SPEC}])
+	fi
+    else
+	AC_MSG_RESULT([file not found])
+    fi
 ])
 
 #------------------------------------------------------------------------
-# TEA_PATH_CELIB --
+# TEA_EXPORT_CONFIG --
 #
-#	Locate Keuchel's celib emulation layer for targeting Win/CE
+#	Define the data to insert into the ${PACKAGE}Config.sh file
 #
 # Arguments:
-#	none
+#
+#	Requires the following vars to be set:
+#		$1
 #
 # Results:
+#	Substitutes the following vars:
+#------------------------------------------------------------------------
+
+AC_DEFUN([TEA_EXPORT_CONFIG], [
+    #--------------------------------------------------------------------
+    # These are for $1Config.sh
+    #--------------------------------------------------------------------
+
+    # pkglibdir must be a fully qualified path and (not ${exec_prefix}/lib)
+    eval pkglibdir="[$]{libdir}/$1${PACKAGE_VERSION}"
+    if test "${TCL_LIB_VERSIONS_OK}" = "ok"; then
+	eval $1_LIB_FLAG="-l$1${PACKAGE_VERSION}"
+	eval $1_STUB_LIB_FLAG="-l$1stub${PACKAGE_VERSION}"
+    else
+	eval $1_LIB_FLAG="-l$1`echo ${PACKAGE_VERSION} | tr -d .`"
+	eval $1_STUB_LIB_FLAG="-l$1stub`echo ${PACKAGE_VERSION} | tr -d .`"
+    fi
+    if test "${TCL_MAJOR_VERSION}" -gt 8 -a x"${with_tcl8}" == x; then
+	eval $1_STUB_LIB_FLAG="-l$1stub"
+    fi
+
+    $1_BUILD_LIB_SPEC="-L`$CYGPATH $(pwd)` ${$1_LIB_FLAG}"
+    $1_LIB_SPEC="-L`$CYGPATH ${pkglibdir}` ${$1_LIB_FLAG}"
+    $1_BUILD_STUB_LIB_SPEC="-L`$CYGPATH $(pwd)` [$]{$1_STUB_LIB_FLAG}"
+    $1_STUB_LIB_SPEC="-L`$CYGPATH ${pkglibdir}` [$]{$1_STUB_LIB_FLAG}"
+    $1_BUILD_STUB_LIB_PATH="`$CYGPATH $(pwd)`/[$]{PKG_STUB_LIB_FILE}"
+    $1_STUB_LIB_PATH="`$CYGPATH ${pkglibdir}`/[$]{PKG_STUB_LIB_FILE}"
+
+    AC_SUBST($1_BUILD_LIB_SPEC)
+    AC_SUBST($1_LIB_SPEC)
+    AC_SUBST($1_BUILD_STUB_LIB_SPEC)
+    AC_SUBST($1_STUB_LIB_SPEC)
+    AC_SUBST($1_BUILD_STUB_LIB_PATH)
+    AC_SUBST($1_STUB_LIB_PATH)
+
+    AC_SUBST(MAJOR_VERSION)
+    AC_SUBST(MINOR_VERSION)
+    AC_SUBST(PATCHLEVEL)
+])
+
+
+#------------------------------------------------------------------------
+# TEA_INSTALLER --
 #
-#	Adds the following arguments to configure:
-#		--with-celib=...
+#	Configure the installer.
 #
-#	Defines the following vars:
-#		CELIB_DIR	Full path to the directory containing
-#				the include and platform lib files
+# Arguments:
+#	none
+#
+# Results:
+#	Substitutes the following vars:
+#		INSTALL
+#		INSTALL_DATA_DIR
+#		INSTALL_DATA
+#		INSTALL_PROGRAM
+#		INSTALL_SCRIPT
+#		INSTALL_LIBRARY
 #------------------------------------------------------------------------
 
-AC_DEFUN([TEA_PATH_CELIB], [
-    # First, look for one uninstalled.
-    # the alternative search directory is invoked by --with-celib
+AC_DEFUN([TEA_INSTALLER], [
+    INSTALL='$(SHELL) $(srcdir)/tclconfig/install-sh -c'
+    INSTALL_DATA_DIR='${INSTALL} -d -m 755'
+    INSTALL_DATA='${INSTALL} -m 644'
+    INSTALL_PROGRAM='${INSTALL} -m 755'
+    INSTALL_SCRIPT='${INSTALL} -m 755'
 
-    if test x"${no_celib}" = x ; then
-	# we reset no_celib in case something fails here
-	no_celib=true
-	AC_ARG_WITH(celib,[  --with-celib=DIR        use Windows/CE support library from DIR], with_celibconfig=${withval})
-	AC_MSG_CHECKING([for Windows/CE celib directory])
-	AC_CACHE_VAL(ac_cv_c_celibconfig,[
-	    # First check to see if --with-celibconfig was specified.
-	    if test x"${with_celibconfig}" != x ; then
-		if test -d "${with_celibconfig}/inc" ; then
-		    ac_cv_c_celibconfig=`(cd ${with_celibconfig}; pwd)`
-		else
-		    AC_MSG_ERROR([${with_celibconfig} directory doesn't contain inc directory])
-		fi
-	    fi
+    TEA_CONFIG_SYSTEM
+    case $system in
+	HP-UX-*) INSTALL_LIBRARY='${INSTALL} -m 755' ;;
+	      *) INSTALL_LIBRARY='${INSTALL} -m 644' ;;
+    esac
 
-	    # then check for a celib library
-	    if test x"${ac_cv_c_celibconfig}" = x ; then
-		for i in \
-			../celib-palm-3.0 \
-			../celib \
-			../../celib-palm-3.0 \
-			../../celib \
-			`ls -dr ../celib-*3.[[0-9]]* 2>/dev/null` \
-			${srcdir}/../celib-palm-3.0 \
-			${srcdir}/../celib \
-			`ls -dr ${srcdir}/../celib-*3.[[0-9]]* 2>/dev/null` \
-			; do
-		    if test -d "$i/inc" ; then
-			ac_cv_c_celibconfig=`(cd $i; pwd)`
-			break
-		    fi
-		done
-	    fi
-	])
-	if test x"${ac_cv_c_celibconfig}" = x ; then
-	    AC_MSG_ERROR([Cannot find celib support library directory])
-	else
-	    no_celib=
-	    CELIB_DIR=${ac_cv_c_celibconfig}
-	    CELIB_DIR=`echo "$CELIB_DIR" | sed -e 's!\\\!/!g'`
-	    AC_MSG_RESULT([found $CELIB_DIR])
-	fi
-    fi
+    AC_SUBST(INSTALL)
+    AC_SUBST(INSTALL_DATA_DIR)
+    AC_SUBST(INSTALL_DATA)
+    AC_SUBST(INSTALL_PROGRAM)
+    AC_SUBST(INSTALL_SCRIPT)
+    AC_SUBST(INSTALL_LIBRARY)
 ])
 
+###
+# Tip 430 - ZipFS Modifications
+###
+#------------------------------------------------------------------------
+# TEA_ZIPFS_SUPPORT
+#	Locate a zip encoder installed on the system path, or none.
+#
+# Arguments:
+#	none
+#
+# Results:
+#	Substitutes the following vars:
+#       MACHER_PROG
+#       ZIP_PROG
+#       ZIP_PROG_OPTIONS
+#       ZIP_PROG_VFSSEARCH
+#       ZIP_INSTALL_OBJS
+#------------------------------------------------------------------------
+
+AC_DEFUN([TEA_ZIPFS_SUPPORT], [
+    MACHER_PROG=""
+    ZIP_PROG=""
+    ZIP_PROG_OPTIONS=""
+    ZIP_PROG_VFSSEARCH=""
+    ZIP_INSTALL_OBJS=""
+
+    AC_MSG_CHECKING([for macher])
+    AC_CACHE_VAL(ac_cv_path_macher, [
+    search_path=`echo ${PATH} | sed -e 's/:/ /g'`
+    for dir in $search_path ; do
+        for j in `ls -r $dir/macher 2> /dev/null` \
+            `ls -r $dir/macher 2> /dev/null` ; do
+        if test x"$ac_cv_path_macher" = x ; then
+            if test -f "$j" ; then
+            ac_cv_path_macher=$j
+            break
+            fi
+        fi
+        done
+    done
+    ])
+    if test -f "$ac_cv_path_macher" ; then
+        MACHER_PROG="$ac_cv_path_macher"
+        AC_MSG_RESULT([$MACHER_PROG])
+        AC_MSG_RESULT([Found macher in environment])
+    fi
+    AC_MSG_CHECKING([for zip])
+    AC_CACHE_VAL(ac_cv_path_zip, [
+    search_path=`echo ${PATH} | sed -e 's/:/ /g'`
+    for dir in $search_path ; do
+        for j in `ls -r $dir/zip 2> /dev/null` \
+            `ls -r $dir/zip 2> /dev/null` ; do
+        if test x"$ac_cv_path_zip" = x ; then
+            if test -f "$j" ; then
+            ac_cv_path_zip=$j
+            break
+            fi
+        fi
+        done
+    done
+    ])
+    if test -f "$ac_cv_path_zip" ; then
+        ZIP_PROG="$ac_cv_path_zip"
+        AC_MSG_RESULT([$ZIP_PROG])
+        ZIP_PROG_OPTIONS="-rq"
+        ZIP_PROG_VFSSEARCH="*"
+        AC_MSG_RESULT([Found INFO Zip in environment])
+        # Use standard arguments for zip
+    else
+        # It is not an error if an installed version of Zip can't be located.
+        # We can use the locally distributed minizip instead
+        ZIP_PROG="./minizip${EXEEXT_FOR_BUILD}"
+        ZIP_PROG_OPTIONS="-o -r"
+        ZIP_PROG_VFSSEARCH="*"
+        ZIP_INSTALL_OBJS="minizip${EXEEXT_FOR_BUILD}"
+        AC_MSG_RESULT([No zip found on PATH. Building minizip])
+    fi
+    AC_SUBST(MACHER_PROG)
+    AC_SUBST(ZIP_PROG)
+    AC_SUBST(ZIP_PROG_OPTIONS)
+    AC_SUBST(ZIP_PROG_VFSSEARCH)
+    AC_SUBST(ZIP_INSTALL_OBJS)
+])
 
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